/* roulang page: index */
:root{
      --bg: #f6efe9;
      --bg-soft: #fffaf7;
      --surface: #fffdfb;
      --surface-2: #f5e9e2;
      --surface-dark: #221015;
      --surface-dark-2: #351520;
      --text: #23181b;
      --muted: #6f5962;
      --muted-2: #8b7680;
      --line: rgba(77, 18, 37, 0.12);
      --line-strong: rgba(77, 18, 37, 0.22);
      --brand: #6d1633;
      --brand-2: #8f274a;
      --brand-3: #b05f75;
      --gold: #c79b5a;
      --gold-2: #e1c48b;
      --shadow: 0 18px 50px rgba(48, 14, 24, 0.10);
      --shadow-2: 0 24px 60px rgba(48, 14, 24, 0.16);
      --radius: 18px;
      --radius-sm: 14px;
      --radius-lg: 28px;
      --container: 1280px;
      --gap: 24px;
      --gap-lg: 32px;
      --transition: 220ms cubic-bezier(.2,.8,.2,1);
      --focus: 0 0 0 4px rgba(199, 155, 90, 0.22);
    }

    * { box-sizing: border-box; }
    html { scroll-behavior: smooth; }
    body {
      margin: 0;
      color: var(--text);
      background:
        radial-gradient(1000px 600px at 85% 0%, rgba(109, 22, 51, 0.10), transparent 60%),
        radial-gradient(800px 500px at 0% 12%, rgba(199, 155, 90, 0.12), transparent 54%),
        linear-gradient(180deg, #fffdfb 0%, #f8f1ec 36%, #f6efe9 100%);
      font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
      line-height: 1.85;
      text-rendering: optimizeLegibility;
      -webkit-font-smoothing: antialiased;
      overflow-x: hidden;
    }

    ::selection { background: rgba(109, 22, 51, 0.18); color: var(--text); }

    a {
      color: inherit;
      text-decoration: none;
      transition: color var(--transition), transform var(--transition), background var(--transition), box-shadow var(--transition), border-color var(--transition), opacity var(--transition);
    }

    img {
      display: block;
      width: 100%;
      height: auto;
    }

    button,
    input,
    textarea,
    select {
      font: inherit;
    }

    button {
      cursor: pointer;
      border: 0;
      background: none;
    }

    .container {
      width: min(var(--container), calc(100% - 32px));
      margin: 0 auto;
    }

    .skip-link {
      position: absolute;
      left: 12px;
      top: -40px;
      z-index: 1000;
      background: var(--surface);
      color: var(--text);
      padding: 10px 14px;
      border: 1px solid var(--line);
      border-radius: 999px;
      box-shadow: var(--shadow);
    }

    .skip-link:focus { top: 12px; outline: none; box-shadow: var(--focus), var(--shadow); }

    .site-header {
      position: sticky;
      top: 0;
      z-index: 999;
      backdrop-filter: blur(14px);
      background: rgba(255, 250, 247, 0.74);
      border-bottom: 1px solid rgba(77, 18, 37, 0.08);
      transition: background var(--transition), box-shadow var(--transition), transform var(--transition);
    }

    .site-header.is-scrolled {
      background: rgba(36, 16, 21, 0.88);
      box-shadow: 0 10px 24px rgba(0,0,0,0.08);
    }

    .site-header.is-scrolled .logo,
    .site-header.is-scrolled .nav-link,
    .site-header.is-scrolled .menu-toggle {
      color: #fff7f6;
    }

    .site-header.is-scrolled .nav-link:hover,
    .site-header.is-scrolled .nav-link:focus-visible {
      background: rgba(255,255,255,0.08);
    }

    .header-inner {
      min-height: 76px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 18px;
    }

    .logo {
      display: inline-flex;
      align-items: center;
      gap: 12px;
      font-weight: 800;
      letter-spacing: 0.02em;
      color: var(--text);
      min-width: 0;
    }

    .logo-mark {
      width: 38px;
      height: 38px;
      border-radius: 14px;
      background:
        radial-gradient(circle at 30% 25%, rgba(255,255,255,0.45), transparent 30%),
        linear-gradient(135deg, var(--brand) 0%, #8d2746 50%, #c78a5b 100%);
      box-shadow: 0 12px 24px rgba(109, 22, 51, 0.24);
      position: relative;
      flex: 0 0 auto;
    }

    .logo-mark::after {
      content: "";
      position: absolute;
      inset: 9px;
      border-radius: 11px;
      border: 1px solid rgba(255,255,255,0.34);
    }

    .logo-text {
      font-size: 16px;
      line-height: 1.2;
      white-space: nowrap;
      overflow: hidden;
      text-overflow: ellipsis;
      max-width: 100%;
    }

    .header-nav {
      display: flex;
      align-items: center;
      gap: 8px;
    }

    .nav-menu {
      display: flex;
      align-items: center;
      gap: 8px;
      margin: 0;
      padding: 0;
      list-style: none;
    }

    .nav-link {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      height: 42px;
      padding: 0 16px;
      border-radius: 999px;
      color: var(--muted);
      font-weight: 600;
      border: 1px solid transparent;
      position: relative;
    }

    .nav-link:hover,
    .nav-link:focus-visible {
      color: var(--brand);
      background: rgba(109, 22, 51, 0.06);
      border-color: rgba(109, 22, 51, 0.10);
      outline: none;
      transform: translateY(-1px);
    }

    .nav-link.active {
      color: var(--brand);
      background: rgba(109, 22, 51, 0.08);
      border-color: rgba(109, 22, 51, 0.12);
    }

    .header-actions {
      display: inline-flex;
      align-items: center;
      gap: 12px;
    }

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 10px;
      min-height: 46px;
      padding: 0 18px;
      border-radius: 999px;
      font-weight: 700;
      border: 1px solid transparent;
      white-space: nowrap;
      transition: transform var(--transition), box-shadow var(--transition), background var(--transition), color var(--transition), border-color var(--transition), opacity var(--transition);
    }

    .btn:hover,
    .btn:focus-visible {
      transform: translateY(-2px);
      outline: none;
      box-shadow: 0 14px 28px rgba(48, 14, 24, 0.14);
    }

    .btn-primary {
      background: linear-gradient(135deg, var(--brand) 0%, var(--brand-2) 100%);
      color: #fff9f8;
      box-shadow: 0 14px 28px rgba(109, 22, 51, 0.20);
    }

    .btn-primary:hover,
    .btn-primary:focus-visible {
      box-shadow: 0 18px 34px rgba(109, 22, 51, 0.26), 0 0 0 1px rgba(255,255,255,0.10) inset;
    }

    .btn-secondary {
      background: rgba(255,255,255,0.54);
      color: var(--brand);
      border-color: rgba(109, 22, 51, 0.18);
    }

    .btn-secondary:hover,
    .btn-secondary:focus-visible {
      border-color: rgba(199, 155, 90, 0.42);
      box-shadow: 0 16px 32px rgba(48, 14, 24, 0.10);
    }

    .btn-ghost {
      background: rgba(255,255,255,0.14);
      color: #fff;
      border: 1px solid rgba(255,255,255,0.22);
    }

    .menu-toggle {
      display: none;
      width: 46px;
      height: 46px;
      align-items: center;
      justify-content: center;
      border-radius: 14px;
      border: 1px solid rgba(77, 18, 37, 0.14);
      color: var(--text);
      background: rgba(255,255,255,0.70);
      transition: transform var(--transition), background var(--transition), border-color var(--transition);
    }

    .menu-toggle:hover,
    .menu-toggle:focus-visible {
      transform: translateY(-1px);
      border-color: rgba(109, 22, 51, 0.22);
      outline: none;
      box-shadow: var(--focus);
    }

    .menu-icon {
      width: 20px;
      height: 14px;
      position: relative;
    }

    .menu-icon span {
      position: absolute;
      left: 0;
      right: 0;
      height: 2px;
      border-radius: 999px;
      background: currentColor;
      transition: transform var(--transition), top var(--transition), opacity var(--transition);
    }

    .menu-icon span:nth-child(1) { top: 0; }
    .menu-icon span:nth-child(2) { top: 6px; }
    .menu-icon span:nth-child(3) { top: 12px; }

    .hero {
      position: relative;
      padding: 36px 0 22px;
    }

    .hero-shell {
      position: relative;
      overflow: hidden;
      border-radius: 32px;
      background:
        linear-gradient(135deg, rgba(36, 16, 21, 0.96) 0%, rgba(84, 23, 42, 0.95) 46%, rgba(41, 18, 25, 0.95) 100%);
      box-shadow: var(--shadow-2);
      color: #fff;
      isolation: isolate;
    }

    .hero-shell::before {
      content: "";
      position: absolute;
      inset: 0;
      background:
        radial-gradient(600px 280px at 80% 18%, rgba(255,255,255,0.12), transparent 55%),
        radial-gradient(420px 240px at 15% 80%, rgba(199,155,90,0.18), transparent 60%);
      z-index: 0;
      pointer-events: none;
    }

    .hero-grid {
      position: relative;
      z-index: 1;
      display: grid;
      grid-template-columns: 1.15fr 0.85fr;
      gap: 28px;
      align-items: center;
      min-height: 640px;
      padding: 34px;
    }

    .hero-copy {
      padding: 16px 8px 16px 6px;
    }

    .eyebrow {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 8px 14px;
      border-radius: 999px;
      background: rgba(255,255,255,0.08);
      color: rgba(255,255,255,0.86);
      border: 1px solid rgba(255,255,255,0.12);
      font-size: 13px;
      letter-spacing: 0.04em;
      margin-bottom: 18px;
    }

    .hero h1 {
      margin: 0;
      max-width: 12ch;
      font-size: clamp(2.8rem, 5vw, 4.2rem);
      line-height: 1.06;
      letter-spacing: -0.03em;
      font-weight: 900;
      text-wrap: balance;
    }

    .hero-copy p {
      margin: 22px 0 0;
      max-width: 44rem;
      color: rgba(255,255,255,0.82);
      font-size: 17px;
      line-height: 1.9;
    }

    .hero-actions {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
      margin-top: 26px;
    }

    .hero-tags {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      margin-top: 22px;
    }

    .badge {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      min-height: 34px;
      padding: 0 12px;
      border-radius: 999px;
      background: rgba(255,255,255,0.08);
      border: 1px solid rgba(255,255,255,0.12);
      color: rgba(255,255,255,0.9);
      font-size: 13px;
      font-weight: 600;
    }

    .hero-visual {
      position: relative;
      border-radius: 28px;
      overflow: hidden;
      min-height: 560px;
      background: #2d1118;
      box-shadow: 0 22px 50px rgba(0,0,0,0.22);
      border: 1px solid rgba(255,255,255,0.08);
    }

    .hero-visual img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      min-height: 560px;
      filter: saturate(0.92) contrast(1.02);
      opacity: 0.88;
    }

    .hero-visual::after {
      content: "";
      position: absolute;
      inset: 0;
      background:
        linear-gradient(180deg, rgba(22,9,13,0.18) 0%, rgba(22,9,13,0.44) 56%, rgba(22,9,13,0.80) 100%);
      pointer-events: none;
    }

    .hero-card {
      position: absolute;
      left: 18px;
      right: 18px;
      bottom: 18px;
      z-index: 2;
      border-radius: 24px;
      background: rgba(255, 250, 247, 0.90);
      color: var(--text);
      box-shadow: 0 16px 40px rgba(0,0,0,0.18);
      border: 1px solid rgba(255,255,255,0.32);
      backdrop-filter: blur(8px);
      padding: 18px;
    }

    .hero-card-top {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 14px;
      margin-bottom: 12px;
    }

    .mini-title {
      font-size: 15px;
      font-weight: 800;
      color: var(--brand);
      margin: 0;
    }

    .mini-note {
      color: var(--muted);
      font-size: 13px;
      margin: 0;
      white-space: nowrap;
    }

    .progress-row {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 10px;
    }

    .progress-chip {
      background: #fff;
      border: 1px solid rgba(77, 18, 37, 0.10);
      border-radius: 16px;
      padding: 12px;
      min-height: 84px;
    }

    .progress-chip span {
      display: block;
      font-size: 12px;
      color: var(--muted);
      margin-bottom: 8px;
    }

    .progress-chip strong {
      display: block;
      color: var(--text);
      font-size: 15px;
      line-height: 1.5;
    }

    .section {
      padding: 80px 0;
    }

    .section.tight {
      padding-top: 54px;
    }

    .section-head {
      display: flex;
      align-items: end;
      justify-content: space-between;
      gap: 20px;
      margin-bottom: 26px;
    }

    .section-head h2 {
      margin: 0;
      color: var(--text);
      font-size: clamp(1.85rem, 2.6vw, 2.45rem);
      line-height: 1.18;
      letter-spacing: -0.02em;
    }

    .section-head p {
      margin: 0;
      max-width: 44rem;
      color: var(--muted);
      font-size: 16px;
      line-height: 1.8;
    }

    .stats-strip {
      padding-top: 18px;
    }

    .stats-box {
      border-radius: 26px;
      background: linear-gradient(135deg, rgba(109, 22, 51, 0.08) 0%, rgba(199, 155, 90, 0.08) 100%);
      border: 1px solid rgba(77, 18, 37, 0.08);
      padding: 20px;
      box-shadow: var(--shadow);
    }

    .stats-grid {
      display: grid;
      grid-template-columns: repeat(3, minmax(0, 1fr));
      gap: 16px;
    }

    .stat {
      background: rgba(255,255,255,0.72);
      border: 1px solid rgba(77, 18, 37, 0.08);
      border-radius: 18px;
      padding: 18px 18px 17px;
      min-height: 116px;
    }

    .stat .kicker {
      display: inline-flex;
      margin-bottom: 12px;
      color: var(--brand);
      font-size: 13px;
      font-weight: 700;
      letter-spacing: 0.03em;
    }

    .stat strong {
      display: block;
      font-size: 26px;
      line-height: 1.1;
      margin-bottom: 8px;
      color: var(--text);
    }

    .stat p {
      margin: 0;
      color: var(--muted);
      font-size: 14px;
      line-height: 1.7;
    }

    .feature-layout {
      display: grid;
      grid-template-columns: minmax(0, 1.3fr) minmax(320px, 0.9fr);
      gap: 24px;
      align-items: stretch;
    }

    .feature-large,
    .feature-small,
    .guide-art,
    .guide-card,
    .update-card,
    .cta-box,
    .faq-card {
      background: var(--surface);
      border: 1px solid rgba(77, 18, 37, 0.10);
      box-shadow: var(--shadow);
    }

    .feature-large {
      overflow: hidden;
      border-radius: 28px;
      display: grid;
      grid-template-columns: minmax(0, 0.92fr) minmax(0, 1.08fr);
      min-height: 420px;
    }

    .feature-large .media {
      position: relative;
      overflow: hidden;
      min-height: 100%;
    }

    .feature-large .media img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      min-height: 420px;
    }

    .feature-large .media::after {
      content: "";
      position: absolute;
      inset: 0;
      background: linear-gradient(180deg, transparent 0%, rgba(22, 9, 13, 0.26) 100%);
    }

    .feature-large .content {
      padding: 28px;
      display: flex;
      flex-direction: column;
      justify-content: center;
    }

    .feature-label {
      display: inline-flex;
      align-items: center;
      width: fit-content;
      gap: 8px;
      margin-bottom: 14px;
      padding: 8px 12px;
      border-radius: 999px;
      background: rgba(109, 22, 51, 0.08);
      color: var(--brand);
      font-size: 13px;
      font-weight: 700;
    }

    .feature-large h3,
    .feature-small h3,
    .guide-text h3,
    .update-card h3,
    .cta-box h2 {
      margin: 0;
      color: var(--text);
      letter-spacing: -0.01em;
    }

    .feature-large h3 {
      font-size: 30px;
      line-height: 1.18;
      margin-bottom: 14px;
    }

    .feature-large p,
    .feature-small p,
    .guide-text p,
    .update-card p {
      margin: 0;
      color: var(--muted);
      line-height: 1.85;
      font-size: 15px;
    }

    .feature-points {
      margin: 18px 0 0;
      padding: 0;
      list-style: none;
      display: grid;
      gap: 10px;
    }

    .feature-points li {
      display: flex;
      align-items: flex-start;
      gap: 10px;
      color: var(--text);
      font-size: 14px;
      line-height: 1.7;
    }

    .feature-points li::before {
      content: "";
      width: 8px;
      height: 8px;
      margin-top: 9px;
      border-radius: 50%;
      background: linear-gradient(135deg, var(--brand) 0%, var(--gold) 100%);
      flex: 0 0 auto;
    }

    .feature-stack {
      display: grid;
      gap: 20px;
    }

    .feature-small {
      border-radius: 24px;
      overflow: hidden;
      display: grid;
      grid-template-columns: 140px minmax(0, 1fr);
      min-height: 200px;
    }

    .feature-small .thumb {
      position: relative;
      overflow: hidden;
      min-height: 100%;
    }

    .feature-small .thumb img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      min-height: 200px;
    }

    .feature-small .thumb::after {
      content: "";
      position: absolute;
      inset: 0;
      background: linear-gradient(0deg, rgba(22,9,13,0.25) 0%, rgba(22,9,13,0.04) 100%);
    }

    .feature-small .body {
      padding: 22px 20px;
    }

    .feature-small h3 {
      font-size: 22px;
      line-height: 1.25;
      margin-bottom: 10px;
    }

    .meta-row {
      display: flex;
      align-items: center;
      gap: 10px;
      flex-wrap: wrap;
      margin-top: 14px;
      font-size: 13px;
      color: var(--muted);
    }

    .dot {
      width: 4px;
      height: 4px;
      border-radius: 50%;
      background: rgba(111, 89, 98, 0.55);
    }

    .badge-dark {
      background: rgba(109, 22, 51, 0.08);
      border: 1px solid rgba(109, 22, 51, 0.10);
      color: var(--brand);
    }

    .update-wrap {
      margin-top: 10px;
    }

    .update-grid {
      display: grid;
      grid-template-columns: repeat(2, minmax(0, 1fr));
      gap: 20px;
    }

    .update-card {
      display: block;
      border-radius: 24px;
      padding: 20px;
      overflow: hidden;
      position: relative;
      isolation: isolate;
      min-height: 220px;
    }

    .update-card:hover,
    .update-card:focus-visible {
      transform: translateY(-3px);
      outline: none;
      border-color: rgba(109, 22, 51, 0.18);
      box-shadow: var(--shadow-2);
    }

    .update-card::before {
      content: "";
      position: absolute;
      inset: 0;
      background: linear-gradient(180deg, rgba(109,22,51,0.02), rgba(199,155,90,0.02));
      z-index: -1;
      pointer-events: none;
    }

    .update-card .meta {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 14px;
      margin-bottom: 14px;
      color: var(--muted);
      font-size: 13px;
    }

    .update-card h3 {
      font-size: 22px;
      line-height: 1.32;
      margin-bottom: 10px;
      display: -webkit-box;
      -webkit-line-clamp: 2;
      -webkit-box-orient: vertical;
      overflow: hidden;
    }

    .update-card p {
      display: -webkit-box;
      -webkit-line-clamp: 3;
      -webkit-box-orient: vertical;
      overflow: hidden;
    }

    .update-footer {
      margin-top: 18px;
      display: inline-flex;
      align-items: center;
      gap: 8px;
      color: var(--brand);
      font-weight: 700;
      font-size: 14px;
    }

    .update-footer span {
      transition: transform var(--transition);
    }

    .update-card:hover .update-footer span,
    .update-card:focus-visible .update-footer span {
      transform: translateX(4px);
    }

    .update-empty {
      grid-column: 1 / -1;
      border-radius: 22px;
      background: linear-gradient(135deg, rgba(255,255,255,0.90), rgba(245, 233, 226, 0.85));
      border: 1px dashed rgba(109, 22, 51, 0.18);
      min-height: 180px;
      display: grid;
      place-items: center;
      padding: 28px;
      color: var(--muted);
      text-align: center;
    }

    .guide-grid {
      display: grid;
      grid-template-columns: minmax(0, 1fr) minmax(320px, 0.86fr);
      gap: 24px;
      align-items: stretch;
    }

    .guide-card {
      border-radius: 28px;
      padding: 28px;
      overflow: hidden;
    }

    .guide-text h3 {
      font-size: 30px;
      line-height: 1.18;
      margin-bottom: 14px;
    }

    .guide-text > p {
      max-width: 52rem;
      margin-bottom: 20px;
    }

    .guide-points {
      display: grid;
      gap: 14px;
      margin-top: 20px;
    }

    .guide-point {
      display: grid;
      grid-template-columns: 46px minmax(0, 1fr);
      gap: 14px;
      align-items: start;
      padding: 16px;
      border-radius: 18px;
      background: var(--bg-soft);
      border: 1px solid rgba(77, 18, 37, 0.08);
    }

    .guide-num {
      width: 46px;
      height: 46px;
      border-radius: 16px;
      display: grid;
      place-items: center;
      background: linear-gradient(135deg, var(--brand) 0%, var(--brand-2) 100%);
      color: #fff;
      font-weight: 800;
      font-size: 15px;
      box-shadow: 0 12px 24px rgba(109, 22, 51, 0.18);
    }

    .guide-point h4 {
      margin: 0 0 4px;
      font-size: 18px;
      line-height: 1.34;
      color: var(--text);
    }

    .guide-point p {
      margin: 0;
      font-size: 14px;
      line-height: 1.75;
      color: var(--muted);
    }

    .guide-art {
      overflow: hidden;
      border-radius: 28px;
      position: relative;
      min-height: 100%;
    }

    .guide-art img {
      width: 100%;
      height: 100%;
      min-height: 420px;
      object-fit: cover;
    }

    .guide-art::after {
      content: "";
      position: absolute;
      inset: 0;
      background: linear-gradient(180deg, transparent 36%, rgba(28, 12, 17, 0.72) 100%);
      pointer-events: none;
    }

    .guide-note {
      position: absolute;
      left: 18px;
      right: 18px;
      bottom: 18px;
      z-index: 1;
      padding: 18px;
      border-radius: 20px;
      background: rgba(255,255,255,0.88);
      backdrop-filter: blur(8px);
      border: 1px solid rgba(255,255,255,0.34);
      color: var(--text);
    }

    .guide-note strong {
      display: block;
      margin-bottom: 6px;
      color: var(--brand);
      font-size: 15px;
    }

    .guide-note p {
      margin: 0;
      color: var(--muted);
      font-size: 14px;
      line-height: 1.75;
    }

    .faq-list {
      display: grid;
      gap: 14px;
    }

    details.faq-card {
      border-radius: 20px;
      overflow: hidden;
    }

    details.faq-card summary {
      list-style: none;
      cursor: pointer;
      padding: 18px 20px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 18px;
      font-weight: 800;
      color: var(--text);
      transition: background var(--transition), color var(--transition);
    }

    details.faq-card summary::-webkit-details-marker { display: none; }

    details.faq-card summary:hover {
      background: rgba(109, 22, 51, 0.04);
    }

    .chev {
      width: 18px;
      height: 18px;
      position: relative;
      flex: 0 0 auto;
      transition: transform var(--transition);
    }

    .chev::before,
    .chev::after {
      content: "";
      position: absolute;
      top: 8px;
      width: 10px;
      height: 2px;
      border-radius: 999px;
      background: var(--muted);
      transition: transform var(--transition), background var(--transition);
    }

    .chev::before { left: 0; transform: rotate(45deg); }
    .chev::after { right: 0; transform: rotate(-45deg); }

    details[open] .chev {
      transform: rotate(180deg);
    }

    details[open] .chev::before,
    details[open] .chev::after {
      background: var(--brand);
    }

    .faq-body {
      padding: 0 20px 18px;
      color: var(--muted);
      font-size: 15px;
      line-height: 1.85;
    }

    .cta {
      padding-top: 10px;
    }

    .cta-box {
      border-radius: 30px;
      background:
        radial-gradient(600px 240px at 0% 0%, rgba(199, 155, 90, 0.12), transparent 60%),
        linear-gradient(135deg, rgba(109, 22, 51, 0.96), rgba(54, 17, 28, 0.98));
      color: #fff;
      padding: 28px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 22px;
    }

    .cta-box h2 {
      color: #fff;
      font-size: clamp(2rem, 3vw, 2.55rem);
      margin-bottom: 10px;
    }

    .cta-box p {
      margin: 0;
      max-width: 44rem;
      color: rgba(255,255,255,0.82);
      font-size: 16px;
      line-height: 1.9;
    }

    .cta-actions {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
      align-items: center;
      justify-content: flex-end;
    }

    .site-footer {
      margin-top: 18px;
      background: linear-gradient(180deg, #231015 0%, #1a0b10 100%);
      color: rgba(255,255,255,0.82);
      padding: 36px 0 22px;
    }

    .footer-top {
      display: grid;
      grid-template-columns: minmax(0, 1.2fr) minmax(260px, 0.8fr);
      gap: 24px;
      align-items: start;
      padding-bottom: 22px;
      border-bottom: 1px solid rgba(255,255,255,0.10);
    }

    .footer-brand .logo-text {
      color: #fff;
      font-size: 18px;
    }

    .footer-brand p {
      margin: 14px 0 0;
      max-width: 50rem;
      color: rgba(255,255,255,0.70);
      line-height: 1.85;
      font-size: 14px;
    }

    .footer-links {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      justify-content: flex-end;
    }

    .footer-link {
      display: inline-flex;
      align-items: center;
      min-height: 38px;
      padding: 0 14px;
      border-radius: 999px;
      color: rgba(255,255,255,0.80);
      border: 1px solid rgba(255,255,255,0.10);
      background: rgba(255,255,255,0.04);
    }

    .footer-link:hover,
    .footer-link:focus-visible {
      outline: none;
      color: #fff;
      border-color: rgba(199, 155, 90, 0.36);
      background: rgba(255,255,255,0.08);
      transform: translateY(-1px);
    }

    .footer-bottom {
      padding-top: 18px;
      display: flex;
      justify-content: space-between;
      gap: 16px;
      flex-wrap: wrap;
      font-size: 13px;
      color: rgba(255,255,255,0.62);
      line-height: 1.7;
    }

    .footer-bottom a {
      color: rgba(255,255,255,0.78);
      border-bottom: 1px solid transparent;
    }

    .footer-bottom a:hover,
    .footer-bottom a:focus-visible {
      border-bottom-color: rgba(255,255,255,0.55);
      outline: none;
    }

    .anchor {
      display: block;
      position: relative;
      top: -96px;
      visibility: hidden;
      pointer-events: none;
    }

    .muted-link {
      color: var(--brand);
      font-weight: 700;
    }

    .muted-link:hover,
    .muted-link:focus-visible {
      color: var(--brand-2);
      outline: none;
    }

    .line {
      height: 1px;
      background: linear-gradient(90deg, transparent, rgba(77, 18, 37, 0.18), transparent);
      margin: 0;
      border: 0;
    }

    @media (max-width: 1120px) {
      .hero-grid,
      .feature-layout,
      .guide-grid,
      .footer-top {
        grid-template-columns: 1fr;
      }

      .hero-grid {
        min-height: unset;
      }

      .hero-visual {
        min-height: 420px;
      }

      .hero-visual img {
        min-height: 420px;
      }

      .feature-large {
        grid-template-columns: 1fr;
      }

      .feature-large .media img {
        min-height: 260px;
      }
    }

    @media (max-width: 860px) {
      .header-nav {
        position: fixed;
        left: 16px;
        right: 16px;
        top: 84px;
        background: rgba(255, 252, 249, 0.96);
        border: 1px solid rgba(77, 18, 37, 0.10);
        border-radius: 24px;
        box-shadow: var(--shadow-2);
        padding: 16px;
        transform: translateY(-12px);
        opacity: 0;
        pointer-events: none;
        transition: opacity var(--transition), transform var(--transition);
      }

      .site-header.is-open .header-nav {
        opacity: 1;
        pointer-events: auto;
        transform: translateY(0);
      }

      .nav-menu {
        width: 100%;
        flex-direction: column;
        align-items: stretch;
      }

      .nav-link {
        width: 100%;
        justify-content: flex-start;
        background: rgba(109, 22, 51, 0.04);
      }

      .header-actions .btn {
        display: none;
      }

      .menu-toggle {
        display: inline-flex;
      }

      .stats-grid,
      .update-grid {
        grid-template-columns: 1fr;
      }

      .cta-box {
        flex-direction: column;
        align-items: flex-start;
      }

      .cta-actions {
        width: 100%;
        justify-content: flex-start;
      }

      .hero h1 {
        max-width: 100%;
      }
    }

    @media (max-width: 640px) {
      .container {
        width: min(calc(100% - 24px), var(--container));
      }

      .header-inner {
        min-height: 72px;
      }

      .logo-text {
        font-size: 15px;
      }

      .hero {
        padding-top: 20px;
      }

      .hero-shell {
        border-radius: 24px;
      }

      .hero-grid {
        padding: 20px;
        gap: 18px;
      }

      .hero h1 {
        font-size: clamp(2.2rem, 10vw, 3rem);
      }

      .hero-copy p,
      .section-head p,
      .guide-text > p,
      .cta-box p {
        font-size: 15px;
      }

      .hero-visual {
        min-height: 340px;
        border-radius: 22px;
      }

      .hero-visual img {
        min-height: 340px;
      }

      .hero-card {
        left: 12px;
        right: 12px;
        bottom: 12px;
        padding: 14px;
      }

      .progress-row {
        grid-template-columns: 1fr;
      }

      .feature-small {
        grid-template-columns: 1fr;
      }

      .feature-small .thumb img {
        min-height: 210px;
      }

      .section {
        padding: 62px 0;
      }

      .section-head {
        flex-direction: column;
        align-items: flex-start;
        margin-bottom: 18px;
      }

      .stats-box,
      .feature-large .content,
      .guide-card,
      .cta-box {
        padding: 20px;
      }

      .stat,
      .guide-point,
      .update-card,
      details.faq-card summary,
      .faq-body {
        padding-left: 16px;
        padding-right: 16px;
      }

      .update-card h3,
      .feature-large h3,
      .feature-small h3,
      .guide-text h3 {
        font-size: 22px;
      }

      .footer-links {
        justify-content: flex-start;
      }

      .footer-bottom {
        flex-direction: column;
      }

      .anchor {
        top: -86px;
      }
    }

    .focus-ring:focus-visible {
      outline: none;
      box-shadow: var(--focus);
    }

/* roulang page: article */
:root{
      --bg: #f6efe9;
      --bg-soft: #fffaf7;
      --surface: #fffdfb;
      --surface-2: #f5e9e2;
      --surface-dark: #221015;
      --surface-dark-2: #351520;
      --text: #23181b;
      --muted: #6f5962;
      --muted-2: #8b7680;
      --line: rgba(77, 18, 37, 0.12);
      --line-strong: rgba(77, 18, 37, 0.22);
      --brand: #6d1633;
      --brand-2: #8f274a;
      --brand-3: #b05f75;
      --gold: #c79b5a;
      --gold-2: #e1c48b;
      --shadow: 0 18px 50px rgba(48, 14, 24, 0.10);
      --shadow-2: 0 24px 60px rgba(48, 14, 24, 0.16);
      --radius: 18px;
      --radius-sm: 14px;
      --radius-lg: 28px;
      --container: 1280px;
      --gap: 24px;
      --gap-lg: 32px;
      --transition: 220ms cubic-bezier(.2,.8,.2,1);
      --focus: 0 0 0 4px rgba(199, 155, 90, 0.22);
    }

    html { scroll-behavior: smooth; }

    * { box-sizing: border-box; }

    body {
      margin: 0;
      color: var(--text);
      background:
        radial-gradient(1000px 600px at 85% 0%, rgba(109, 22, 51, 0.10), transparent 60%),
        radial-gradient(800px 500px at 0% 12%, rgba(199, 155, 90, 0.12), transparent 54%),
        linear-gradient(180deg, #fffdfb 0%, #f8f1ec 36%, #f6efe9 100%);
      font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
      line-height: 1.85;
      text-rendering: optimizeLegibility;
      -webkit-font-smoothing: antialiased;
      overflow-x: hidden;
    }

    a {
      color: inherit;
      text-decoration: none;
      transition: color var(--transition), transform var(--transition), background var(--transition), box-shadow var(--transition), border-color var(--transition), opacity var(--transition);
    }

    a:hover { color: var(--brand); }

    img {
      display: block;
      width: 100%;
      height: auto;
    }

    button,
    input,
    textarea,
    select {
      font: inherit;
    }

    button {
      cursor: pointer;
      border: 0;
      background: none;
    }

    ::selection {
      background: rgba(109, 22, 51, 0.14);
      color: var(--text);
    }

    :focus-visible {
      outline: none;
      box-shadow: var(--focus);
      border-radius: 12px;
    }

    .container {
      width: min(var(--container), calc(100% - 32px));
      margin: 0 auto;
    }

    .site-header {
      position: sticky;
      top: 0;
      z-index: 999;
      backdrop-filter: blur(14px);
      background: rgba(255, 250, 247, 0.74);
      border-bottom: 1px solid rgba(77, 18, 37, 0.08);
      transition: background var(--transition), box-shadow var(--transition), transform var(--transition);
    }

    .site-header.is-scrolled {
      background: rgba(36, 16, 21, 0.88);
      box-shadow: 0 10px 24px rgba(0,0,0,0.08);
    }

    .site-header.is-scrolled .logo,
    .site-header.is-scrolled .nav-link,
    .site-header.is-scrolled .header-action-link {
      color: #fff7f6;
    }

    .site-header.is-scrolled .nav-link:hover,
    .site-header.is-scrolled .nav-link:focus-visible,
    .site-header.is-scrolled .header-action-link:hover,
    .site-header.is-scrolled .header-action-link:focus-visible {
      background: rgba(255,255,255,0.08);
    }

    .header-inner {
      min-height: 76px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 18px;
    }

    .logo {
      display: inline-flex;
      align-items: center;
      gap: 12px;
      font-weight: 800;
      letter-spacing: 0.02em;
      color: var(--text);
      min-width: 0;
    }

    .logo-mark {
      width: 38px;
      height: 38px;
      border-radius: 14px;
      background:
        radial-gradient(circle at 30% 25%, rgba(255,255,255,0.45), transparent 30%),
        linear-gradient(135deg, var(--brand) 0%, #8d2746 50%, #c78a5b 100%);
      box-shadow: 0 12px 24px rgba(109, 22, 51, 0.24);
      position: relative;
      flex: 0 0 auto;
    }

    .logo-mark::after {
      content: "";
      position: absolute;
      inset: 9px;
      border-radius: 11px;
      border: 1px solid rgba(255,255,255,0.34);
    }

    .logo-text {
      font-size: 16px;
      line-height: 1.2;
      white-space: nowrap;
      overflow: hidden;
      text-overflow: ellipsis;
      max-width: 100%;
    }

    .header-nav {
      display: flex;
      align-items: center;
      gap: 8px;
    }

    .nav-menu {
      display: flex;
      align-items: center;
      gap: 8px;
      margin: 0;
      padding: 0;
      list-style: none;
    }

    .nav-link {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      height: 42px;
      padding: 0 16px;
      border-radius: 999px;
      color: var(--muted);
      font-weight: 600;
      border: 1px solid transparent;
      position: relative;
    }

    .nav-link:hover,
    .nav-link:focus-visible {
      color: var(--brand);
      background: rgba(109, 22, 51, 0.06);
      border-color: rgba(109, 22, 51, 0.10);
      outline: none;
      transform: translateY(-1px);
    }

    .nav-link.active {
      color: var(--brand);
      background: rgba(109, 22, 51, 0.08);
      border-color: rgba(109, 22, 51, 0.12);
    }

    .header-actions {
      display: inline-flex;
      align-items: center;
      gap: 12px;
    }

    .header-action-link {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      min-height: 42px;
      padding: 0 16px;
      border-radius: 999px;
      border: 1px solid rgba(109, 22, 51, 0.18);
      color: var(--brand);
      background: rgba(255,255,255,0.56);
      font-weight: 700;
      transition: transform var(--transition), box-shadow var(--transition), background var(--transition), color var(--transition), border-color var(--transition);
    }

    .header-action-link:hover,
    .header-action-link:focus-visible {
      transform: translateY(-1px);
      background: rgba(255,255,255,0.86);
      box-shadow: 0 14px 28px rgba(48, 14, 24, 0.10);
      border-color: rgba(199, 155, 90, 0.42);
    }

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 10px;
      min-height: 48px;
      padding: 0 18px;
      border-radius: 999px;
      font-weight: 700;
      border: 1px solid transparent;
      white-space: nowrap;
      transition: transform var(--transition), box-shadow var(--transition), background var(--transition), color var(--transition), border-color var(--transition), opacity var(--transition);
    }

    .btn:hover,
    .btn:focus-visible {
      transform: translateY(-2px);
      outline: none;
      box-shadow: 0 14px 28px rgba(48, 14, 24, 0.14);
    }

    .btn:active {
      transform: translateY(0);
    }

    .btn-primary {
      background: linear-gradient(135deg, var(--brand) 0%, var(--brand-2) 100%);
      color: #fff9f8;
      box-shadow: 0 14px 28px rgba(109, 22, 51, 0.20);
    }

    .btn-primary:hover,
    .btn-primary:focus-visible {
      box-shadow: 0 18px 34px rgba(109, 22, 51, 0.26), 0 0 0 1px rgba(255,255,255,0.10) inset;
      color: #fff9f8;
    }

    .btn-secondary {
      background: rgba(255,255,255,0.54);
      color: var(--brand);
      border-color: rgba(109, 22, 51, 0.18);
    }

    .btn-secondary:hover,
    .btn-secondary:focus-visible {
      color: var(--brand);
      border-color: rgba(199, 155, 90, 0.42);
      box-shadow: 0 16px 32px rgba(48, 14, 24, 0.10);
    }

    .btn-ghost {
      background: rgba(255,255,255,0.10);
      color: #fff;
      border: 1px solid rgba(255,255,255,0.20);
    }

    .hero-banner {
      position: relative;
      isolation: isolate;
      padding: 40px 0 22px;
    }

    .hero-banner::before {
      content: "";
      position: absolute;
      inset: 0;
      background:
        linear-gradient(180deg, rgba(34, 16, 21, 0.06) 0%, rgba(34, 16, 21, 0.00) 42%),
        radial-gradient(900px 420px at 86% 12%, rgba(199, 155, 90, 0.22), transparent 58%);
      pointer-events: none;
      z-index: -1;
    }

    .hero-shell {
      position: relative;
      border-radius: 28px;
      overflow: hidden;
      background:
        linear-gradient(120deg, rgba(34,16,21,0.92) 0%, rgba(54,20,31,0.92) 55%, rgba(109,22,51,0.74) 100%),
        url('/assets/images/backpic/back-2.jpg') center/cover no-repeat;
      box-shadow: var(--shadow-2);
      border: 1px solid rgba(255,255,255,0.08);
    }

    .hero-shell::after {
      content: "";
      position: absolute;
      inset: 0;
      background:
        radial-gradient(circle at 12% 18%, rgba(255,255,255,0.10), transparent 22%),
        linear-gradient(90deg, rgba(12, 8, 10, 0.18) 0%, rgba(12, 8, 10, 0.42) 56%, rgba(12, 8, 10, 0.22) 100%);
      pointer-events: none;
    }

    .hero-grid {
      position: relative;
      z-index: 1;
      display: grid;
      grid-template-columns: 1.2fr 0.8fr;
      gap: 26px;
      padding: 34px;
      align-items: stretch;
      min-height: 400px;
    }

    .hero-copy {
      color: #fff8f7;
      display: flex;
      flex-direction: column;
      justify-content: center;
      gap: 18px;
      padding-right: 6px;
    }

    .hero-kicker {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      width: fit-content;
      padding: 7px 12px;
      border-radius: 999px;
      background: rgba(255,255,255,0.10);
      border: 1px solid rgba(255,255,255,0.16);
      color: #ffe8dd;
      font-size: 13px;
      font-weight: 700;
      letter-spacing: 0.04em;
      backdrop-filter: blur(8px);
    }

    .hero-title {
      margin: 0;
      font-size: clamp(38px, 4.5vw, 60px);
      line-height: 1.08;
      font-weight: 900;
      letter-spacing: -0.02em;
      max-width: 13ch;
      text-wrap: balance;
    }

    .hero-lead {
      margin: 0;
      max-width: 60ch;
      color: rgba(255, 244, 241, 0.88);
      font-size: 17px;
      line-height: 1.9;
    }

    .hero-meta {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
    }

    .pill {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      min-height: 36px;
      padding: 0 14px;
      border-radius: 999px;
      background: rgba(255,255,255,0.10);
      border: 1px solid rgba(255,255,255,0.16);
      color: #fff3ee;
      font-size: 13px;
      font-weight: 700;
      letter-spacing: 0.01em;
      backdrop-filter: blur(8px);
    }

    .hero-actions {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
      margin-top: 4px;
    }

    .hero-media {
      position: relative;
      min-height: 330px;
      border-radius: 22px;
      overflow: hidden;
      background: rgba(255,255,255,0.08);
      border: 1px solid rgba(255,255,255,0.12);
      box-shadow: inset 0 0 0 1px rgba(255,255,255,0.04);
    }

    .hero-media img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      min-height: 330px;
      filter: saturate(1.06) contrast(1.02);
      transform: scale(1.01);
    }

    .hero-media::after {
      content: "";
      position: absolute;
      inset: 0;
      background:
        linear-gradient(180deg, rgba(10, 6, 8, 0.08) 0%, rgba(10, 6, 8, 0.34) 100%),
        radial-gradient(circle at 70% 18%, rgba(255,255,255,0.12), transparent 20%);
      pointer-events: none;
    }

    .hero-floating {
      position: absolute;
      left: 18px;
      right: 18px;
      bottom: 18px;
      z-index: 2;
      padding: 18px 18px 16px;
      border-radius: 18px;
      background: rgba(26, 11, 16, 0.58);
      color: #fff7f6;
      border: 1px solid rgba(255,255,255,0.10);
      backdrop-filter: blur(12px);
      box-shadow: var(--shadow);
    }

    .hero-floating strong {
      display: block;
      font-size: 15px;
      margin-bottom: 6px;
    }

    .hero-floating p {
      margin: 0;
      color: rgba(255,255,255,0.84);
      font-size: 14px;
      line-height: 1.78;
    }

    .stats-strip {
      margin-top: -6px;
      margin-bottom: 12px;
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 16px;
    }

    .stat-card {
      background: rgba(255,255,255,0.78);
      border: 1px solid var(--line);
      border-radius: var(--radius);
      padding: 18px 18px 16px;
      box-shadow: var(--shadow);
      transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
    }

    .stat-card:hover {
      transform: translateY(-2px);
      box-shadow: var(--shadow-2);
      border-color: rgba(109, 22, 51, 0.18);
    }

    .stat-label {
      display: inline-flex;
      font-size: 13px;
      color: var(--muted);
      font-weight: 700;
      margin-bottom: 6px;
    }

    .stat-value {
      font-size: 22px;
      font-weight: 900;
      line-height: 1.2;
      color: var(--text);
      margin-bottom: 6px;
    }

    .stat-desc {
      margin: 0;
      color: var(--muted);
      font-size: 14px;
      line-height: 1.75;
    }

    .article-layout {
      padding: 14px 0 22px;
    }

    .layout-grid {
      display: grid;
      grid-template-columns: minmax(0, 1.58fr) minmax(300px, 0.72fr);
      gap: 24px;
      align-items: start;
    }

    .article-panel,
    .aside-panel,
    .section-panel,
    .cta-panel {
      background: rgba(255,255,255,0.80);
      border: 1px solid var(--line);
      border-radius: 24px;
      box-shadow: var(--shadow);
    }

    .article-panel {
      overflow: hidden;
    }

    .article-panel-inner {
      padding: 26px;
    }

    .article-topline {
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      gap: 10px;
      margin-bottom: 14px;
    }

    .crumbs {
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      gap: 8px;
      color: var(--muted);
      font-size: 13px;
      line-height: 1.5;
    }

    .crumbs a {
      color: var(--brand);
      font-weight: 700;
    }

    .crumbs span.sep {
      color: rgba(111, 89, 98, 0.56);
    }

    .article-heading {
      display: grid;
      gap: 12px;
      margin-bottom: 18px;
    }

    .section-kicker,
    .article-eyebrow {
      display: inline-flex;
      align-items: center;
      width: fit-content;
      padding: 7px 12px;
      border-radius: 999px;
      background: rgba(109, 22, 51, 0.08);
      color: var(--brand);
      font-size: 13px;
      font-weight: 800;
      letter-spacing: 0.03em;
      border: 1px solid rgba(109, 22, 51, 0.10);
    }

    .article-title {
      margin: 0;
      font-size: clamp(30px, 3.2vw, 46px);
      line-height: 1.15;
      font-weight: 900;
      letter-spacing: -0.02em;
      color: var(--text);
      text-wrap: balance;
    }

    .article-summary {
      margin: 0;
      font-size: 17px;
      color: var(--muted);
      line-height: 1.9;
    }

    .article-meta-row {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      margin-top: 2px;
    }

    .meta-chip {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 8px 12px;
      border-radius: 999px;
      background: var(--surface-2);
      border: 1px solid rgba(109, 22, 51, 0.10);
      color: var(--text);
      font-size: 13px;
      font-weight: 700;
    }

    .meta-chip strong {
      color: var(--brand);
    }

    .article-intro-card {
      display: grid;
      grid-template-columns: 160px minmax(0, 1fr);
      gap: 18px;
      align-items: center;
      margin: 18px 0 18px;
      padding: 16px;
      border-radius: 20px;
      background: linear-gradient(180deg, rgba(245,233,226,0.76), rgba(255,255,255,0.86));
      border: 1px solid rgba(109, 22, 51, 0.10);
    }

    .article-intro-card img {
      width: 100%;
      aspect-ratio: 4 / 3;
      object-fit: cover;
      border-radius: 16px;
      box-shadow: 0 12px 28px rgba(48, 14, 24, 0.12);
    }

    .article-intro-card h2 {
      margin: 0 0 8px;
      font-size: 22px;
      line-height: 1.28;
      font-weight: 800;
      color: var(--text);
    }

    .article-intro-card p {
      margin: 0;
      color: var(--muted);
      line-height: 1.82;
      font-size: 15px;
    }

    .article-body {
      color: var(--text);
      font-size: 17px;
      line-height: 1.9;
      word-break: break-word;
    }

    .article-body > :first-child {
      margin-top: 0;
    }

    .article-body > :last-child {
      margin-bottom: 0;
    }

    .article-body h2,
    .article-body h3,
    .article-body h4 {
      color: var(--text);
      line-height: 1.3;
      font-weight: 800;
      margin: 1.5em 0 0.75em;
      scroll-margin-top: 100px;
    }

    .article-body h2 { font-size: 28px; }
    .article-body h3 { font-size: 24px; }
    .article-body h4 { font-size: 20px; }

    .article-body p {
      margin: 0 0 1.05em;
      color: #2d2024;
    }

    .article-body a {
      color: var(--brand);
      text-decoration: underline;
      text-decoration-thickness: 1px;
      text-underline-offset: 3px;
    }

    .article-body a:hover {
      color: var(--brand-2);
    }

    .article-body strong {
      color: var(--text);
      font-weight: 800;
    }

    .article-body em {
      color: var(--brand);
      font-style: normal;
    }

    .article-body ul,
    .article-body ol {
      margin: 0 0 1.1em 1.2em;
      padding: 0;
    }

    .article-body li {
      margin-bottom: 0.55em;
    }

    .article-body blockquote {
      margin: 1.3em 0;
      padding: 18px 20px;
      border-left: 4px solid var(--gold);
      background: rgba(199, 155, 90, 0.08);
      color: var(--text);
      border-radius: 0 16px 16px 0;
    }

    .article-body hr {
      margin: 1.5em 0;
      border: 0;
      height: 1px;
      background: linear-gradient(90deg, transparent, rgba(109, 22, 51, 0.20), transparent);
    }

    .article-body figure {
      margin: 1.4em 0;
    }

    .article-body figcaption {
      margin-top: 8px;
      color: var(--muted);
      font-size: 13px;
      line-height: 1.7;
    }

    .article-body img {
      border-radius: 18px;
      box-shadow: 0 16px 34px rgba(48, 14, 24, 0.10);
      border: 1px solid rgba(109, 22, 51, 0.10);
    }

    .article-body pre {
      overflow: auto;
      padding: 16px 18px;
      border-radius: 18px;
      background: #201417;
      color: #f8ece7;
      line-height: 1.8;
      box-shadow: inset 0 0 0 1px rgba(255,255,255,0.05);
    }

    .article-body code {
      padding: 0.15em 0.45em;
      border-radius: 8px;
      background: rgba(109, 22, 51, 0.08);
      color: var(--brand);
    }

    .article-footer-note {
      display: flex;
      flex-wrap: wrap;
      justify-content: space-between;
      gap: 14px;
      margin-top: 22px;
      padding-top: 18px;
      border-top: 1px solid var(--line);
      color: var(--muted);
      font-size: 14px;
    }

    .article-footer-note a {
      color: var(--brand);
      font-weight: 700;
    }

    .empty-state {
      padding: 48px 26px;
      text-align: center;
      border-radius: 22px;
      background: linear-gradient(180deg, rgba(245,233,226,0.86), rgba(255,255,255,0.94));
      border: 1px dashed rgba(109, 22, 51, 0.18);
    }

    .empty-state h2 {
      margin: 0 0 10px;
      font-size: 28px;
      font-weight: 900;
      color: var(--text);
    }

    .empty-state p {
      margin: 0 auto 18px;
      max-width: 40ch;
      color: var(--muted);
      line-height: 1.85;
    }

    .aside-panel {
      position: sticky;
      top: 94px;
      overflow: hidden;
    }

    .aside-stack {
      display: grid;
      gap: 16px;
      padding: 18px;
    }

    .aside-card {
      background: rgba(255,255,255,0.88);
      border: 1px solid rgba(109, 22, 51, 0.10);
      border-radius: 18px;
      padding: 18px;
      box-shadow: 0 12px 24px rgba(48, 14, 24, 0.06);
      transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
    }

    .aside-card:hover {
      transform: translateY(-2px);
      box-shadow: 0 16px 28px rgba(48, 14, 24, 0.10);
      border-color: rgba(199, 155, 90, 0.30);
    }

    .aside-card h3 {
      margin: 0 0 10px;
      font-size: 18px;
      line-height: 1.35;
      font-weight: 800;
      color: var(--text);
    }

    .aside-card p {
      margin: 0;
      color: var(--muted);
      font-size: 14px;
      line-height: 1.8;
    }

    .mini-meta {
      display: grid;
      gap: 10px;
    }

    .mini-row {
      display: flex;
      align-items: flex-start;
      justify-content: space-between;
      gap: 18px;
      padding: 11px 0;
      border-bottom: 1px solid rgba(77, 18, 37, 0.08);
      color: var(--muted);
      font-size: 14px;
      line-height: 1.65;
    }

    .mini-row:last-child {
      border-bottom: 0;
      padding-bottom: 0;
    }

    .mini-row strong {
      display: block;
      min-width: 72px;
      color: var(--text);
      font-weight: 800;
      flex: 0 0 auto;
    }

    .toc-list {
      display: grid;
      gap: 8px;
      margin-top: 6px;
    }

    .toc-link {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 10px;
      padding: 12px 14px;
      border-radius: 14px;
      background: rgba(245,233,226,0.62);
      border: 1px solid rgba(109, 22, 51, 0.08);
      color: var(--text);
      font-weight: 700;
      font-size: 14px;
    }

    .toc-link:hover,
    .toc-link:focus-visible {
      transform: translateY(-1px);
      background: rgba(255,255,255,0.92);
      border-color: rgba(199, 155, 90, 0.30);
      color: var(--brand);
    }

    .tag-cloud {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
    }

    .tag {
      display: inline-flex;
      align-items: center;
      min-height: 34px;
      padding: 0 12px;
      border-radius: 999px;
      background: rgba(109, 22, 51, 0.07);
      color: var(--brand);
      border: 1px solid rgba(109, 22, 51, 0.10);
      font-size: 13px;
      font-weight: 700;
    }

    .tag:hover,
    .tag:focus-visible {
      transform: translateY(-1px);
      background: rgba(109, 22, 51, 0.10);
      border-color: rgba(199, 155, 90, 0.28);
    }

    .aside-image {
      overflow: hidden;
      border-radius: 18px;
      border: 1px solid rgba(109, 22, 51, 0.10);
    }

    .aside-image img {
      aspect-ratio: 4 / 3;
      object-fit: cover;
      min-height: 220px;
    }

    .section-block {
      padding: 18px 0 0;
    }

    .section-panel {
      overflow: hidden;
      padding: 26px;
    }

    .section-heading {
      margin-bottom: 18px;
      display: grid;
      gap: 10px;
    }

    .section-heading h2 {
      margin: 0;
      font-size: clamp(26px, 2.6vw, 36px);
      line-height: 1.18;
      font-weight: 900;
      color: var(--text);
    }

    .section-heading p {
      margin: 0;
      max-width: 60ch;
      color: var(--muted);
      line-height: 1.82;
      font-size: 15px;
    }

    .related-grid {
      display: grid;
      grid-template-columns: repeat(3, minmax(0, 1fr));
      gap: 18px;
    }

    .article-card {
      overflow: hidden;
      border-radius: 20px;
      background: rgba(255,255,255,0.88);
      border: 1px solid rgba(109, 22, 51, 0.10);
      box-shadow: 0 12px 28px rgba(48, 14, 24, 0.08);
      transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
      min-height: 100%;
    }

    .article-card:hover {
      transform: translateY(-3px);
      box-shadow: var(--shadow-2);
      border-color: rgba(199, 155, 90, 0.30);
    }

    .article-card-thumb {
      position: relative;
      overflow: hidden;
      aspect-ratio: 16 / 10;
      background: linear-gradient(135deg, rgba(109,22,51,0.10), rgba(199,155,90,0.12));
    }

    .article-card-thumb img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform var(--transition), filter var(--transition);
    }

    .article-card:hover .article-card-thumb img {
      transform: scale(1.04);
      filter: saturate(1.04);
    }

    .article-card-body {
      padding: 16px 16px 18px;
    }

    .article-card-body .card-kicker {
      display: inline-flex;
      margin-bottom: 10px;
      padding: 6px 10px;
      border-radius: 999px;
      background: rgba(109, 22, 51, 0.08);
      color: var(--brand);
      font-size: 12px;
      font-weight: 800;
      letter-spacing: 0.03em;
    }

    .article-card-body h3 {
      margin: 0 0 10px;
      font-size: 18px;
      line-height: 1.45;
      font-weight: 800;
      color: var(--text);
      display: -webkit-box;
      -webkit-line-clamp: 2;
      -webkit-box-orient: vertical;
      overflow: hidden;
    }

    .article-card-body p {
      margin: 0;
      color: var(--muted);
      font-size: 14px;
      line-height: 1.78;
      display: -webkit-box;
      -webkit-line-clamp: 3;
      -webkit-box-orient: vertical;
      overflow: hidden;
    }

    .article-card-foot {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 12px;
      margin-top: 14px;
      padding-top: 14px;
      border-top: 1px solid rgba(77, 18, 37, 0.08);
      color: var(--muted);
      font-size: 13px;
      line-height: 1.4;
    }

    .article-card-foot span:last-child {
      color: var(--brand);
      font-weight: 700;
    }

    .faq-panel {
      overflow: hidden;
      padding: 26px;
    }

    .faq-list {
      display: grid;
      gap: 12px;
    }

    details.faq-item {
      border-radius: 18px;
      background: rgba(255,255,255,0.84);
      border: 1px solid rgba(109, 22, 51, 0.10);
      overflow: hidden;
      box-shadow: 0 10px 22px rgba(48, 14, 24, 0.06);
      transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
    }

    details.faq-item:hover {
      transform: translateY(-1px);
      box-shadow: 0 16px 28px rgba(48, 14, 24, 0.10);
      border-color: rgba(199, 155, 90, 0.28);
    }

    details.faq-item[open] {
      border-color: rgba(109, 22, 51, 0.18);
      box-shadow: 0 18px 36px rgba(48, 14, 24, 0.10);
    }

    details.faq-item summary {
      list-style: none;
      cursor: pointer;
      padding: 18px 18px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 18px;
      font-weight: 800;
      color: var(--text);
      font-size: 16px;
      line-height: 1.45;
    }

    details.faq-item summary::-webkit-details-marker { display: none; }

    details.faq-item summary::after {
      content: "▾";
      flex: 0 0 auto;
      color: var(--brand);
      transition: transform var(--transition), color var(--transition);
      font-size: 14px;
    }

    details.faq-item[open] summary::after {
      transform: rotate(180deg);
      color: var(--brand-2);
    }

    .faq-answer {
      padding: 0 18px 18px;
      color: var(--muted);
      font-size: 15px;
      line-height: 1.82;
    }

    .cta-panel {
      margin: 18px 0 0;
      padding: 28px;
      background:
        linear-gradient(135deg, rgba(34,16,21,0.92), rgba(109,22,51,0.92)),
        url('/assets/images/backpic/back-3.jpg') center/cover no-repeat;
      color: #fff8f6;
      position: relative;
      overflow: hidden;
    }

    .cta-panel::after {
      content: "";
      position: absolute;
      inset: 0;
      background: linear-gradient(90deg, rgba(8,5,7,0.20), rgba(8,5,7,0.42));
      pointer-events: none;
    }

    .cta-inner {
      position: relative;
      z-index: 1;
      display: grid;
      grid-template-columns: 1.18fr auto;
      gap: 22px;
      align-items: center;
    }

    .cta-copy h2 {
      margin: 0 0 10px;
      font-size: clamp(26px, 3vw, 38px);
      line-height: 1.18;
      font-weight: 900;
      color: #fff7f5;
    }

    .cta-copy p {
      margin: 0;
      max-width: 60ch;
      color: rgba(255,255,255,0.85);
      line-height: 1.85;
      font-size: 15px;
    }

    .cta-actions {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
      justify-content: flex-end;
    }

    .cta-actions .btn-secondary {
      background: rgba(255,255,255,0.12);
      color: #fff8f6;
      border-color: rgba(255,255,255,0.22);
    }

    .cta-actions .btn-secondary:hover,
    .cta-actions .btn-secondary:focus-visible {
      color: #fff8f6;
      border-color: rgba(255,255,255,0.42);
      background: rgba(255,255,255,0.16);
    }

    .site-footer {
      margin-top: 26px;
      background: linear-gradient(180deg, #241015 0%, #190b10 100%);
      color: #f6ebe7;
      padding: 28px 0 18px;
      border-top: 1px solid rgba(255,255,255,0.06);
    }

    .footer-top {
      display: flex;
      align-items: flex-start;
      justify-content: space-between;
      gap: 24px;
      padding-bottom: 18px;
      border-bottom: 1px solid rgba(255,255,255,0.08);
    }

    .footer-brand {
      max-width: 560px;
    }

    .footer-brand .logo {
      color: #fff7f6;
      margin-bottom: 12px;
    }

    .footer-brand p {
      margin: 0;
      color: rgba(255,255,255,0.72);
      line-height: 1.9;
      font-size: 14px;
    }

    .footer-links {
      display: flex;
      flex-wrap: wrap;
      gap: 10px 14px;
      justify-content: flex-end;
    }

    .footer-link {
      display: inline-flex;
      align-items: center;
      min-height: 36px;
      padding: 0 12px;
      border-radius: 999px;
      color: rgba(255,255,255,0.82);
      border: 1px solid rgba(255,255,255,0.10);
      background: rgba(255,255,255,0.04);
      font-size: 13px;
      font-weight: 700;
    }

    .footer-link:hover,
    .footer-link:focus-visible {
      color: #fff;
      background: rgba(255,255,255,0.08);
      border-color: rgba(255,255,255,0.22);
      transform: translateY(-1px);
    }

    .footer-bottom {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 18px;
      padding-top: 16px;
      color: rgba(255,255,255,0.62);
      font-size: 13px;
      line-height: 1.7;
    }

    .footer-bottom a {
      color: #fff1d2;
      font-weight: 700;
    }

    .footer-bottom a:hover,
    .footer-bottom a:focus-visible {
      color: #ffdca5;
    }

    @media (max-width: 1199.98px) {
      .hero-grid {
        grid-template-columns: 1.08fr 0.92fr;
      }

      .layout-grid {
        grid-template-columns: minmax(0, 1fr) 320px;
      }

      .related-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
      }
    }

    @media (max-width: 991.98px) {
      .header-inner {
        flex-wrap: wrap;
        padding: 10px 0 12px;
      }

      .header-nav {
        order: 3;
        width: 100%;
      }

      .nav-menu {
        width: 100%;
        justify-content: flex-start;
        flex-wrap: wrap;
      }

      .header-actions {
        margin-left: auto;
      }

      .hero-grid {
        grid-template-columns: 1fr;
        min-height: unset;
      }

      .hero-media {
        min-height: 280px;
      }

      .stats-strip {
        grid-template-columns: 1fr;
      }

      .layout-grid {
        grid-template-columns: 1fr;
      }

      .aside-panel {
        position: static;
      }

      .cta-inner {
        grid-template-columns: 1fr;
      }

      .cta-actions {
        justify-content: flex-start;
      }

      .footer-top {
        flex-direction: column;
      }

      .footer-links {
        justify-content: flex-start;
      }

      .footer-bottom {
        flex-direction: column;
        align-items: flex-start;
      }
    }

    @media (max-width: 767.98px) {
      .hero-banner {
        padding-top: 22px;
      }

      .hero-shell {
        border-radius: 22px;
      }

      .hero-grid {
        padding: 22px;
        gap: 18px;
      }

      .hero-title {
        max-width: none;
      }

      .hero-lead {
        font-size: 16px;
      }

      .hero-media img {
        min-height: 240px;
      }

      .article-panel-inner,
      .section-panel,
      .faq-panel,
      .cta-panel {
        padding: 20px;
      }

      .article-intro-card {
        grid-template-columns: 1fr;
      }

      .related-grid {
        grid-template-columns: 1fr;
      }

      .article-card-body h3 {
        -webkit-line-clamp: 3;
      }

      .hero-actions,
      .cta-actions {
        width: 100%;
      }

      .hero-actions .btn,
      .cta-actions .btn,
      .header-action-link {
        flex: 1 1 160px;
      }
    }

    @media (max-width: 520px) {
      .container {
        width: min(var(--container), calc(100% - 20px));
      }

      .logo-text {
        font-size: 15px;
      }

      .nav-link,
      .header-action-link {
        height: 40px;
        padding: 0 12px;
        font-size: 14px;
      }

      .hero-grid {
        padding: 18px;
      }

      .hero-title {
        font-size: 34px;
      }

      .article-title {
        font-size: 28px;
      }

      .article-summary,
      .hero-lead {
        font-size: 15px;
      }

      .article-body {
        font-size: 16px;
      }

      .mini-row {
        flex-direction: column;
        gap: 6px;
      }

      .mini-row strong {
        min-width: 0;
      }

      .cta-panel {
        border-radius: 22px;
      }
    }

/* roulang: framework shim */
/* 覆盖 Bootstrap 等对 a/btn 的全局默认，避免导航出现下划线/蓝链 */
.site-header a,.site-header a:hover,.navbar a,.navbar a:hover,.nav-links a,.nav-links a:hover,header nav a,header nav a:hover{text-decoration:none}
.site-header .btn,.navbar .btn,.nav-cta{text-decoration:none}