/* roulang page: index */
:root {
      --brand-yellow: #FFB800;
      --brand-amber: #F59E0B;
      --alert-orange: #EA580C;
      --industrial-black: #0F172A;
      --charcoal: #1E293B;
      --card-bg: #FFFFFF;
      --text-main: #1E293B;
      --text-muted: #64748B;
      --bg-light: #F8FAFC;
      --border-color: #E2E8F0;
      --radius-sm: 4px;
      --radius-md: 8px;
      --shadow-soft: 0 4px 20px -2px rgba(15, 23, 42, 0.06);
      --shadow-hover: 0 12px 28px -4px rgba(15, 23, 42, 0.12);
    }
    * { box-sizing: border-box; }
    body {
      margin: 0;
      padding: 0;
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      background-color: var(--bg-light);
      color: var(--text-main);
      line-height: 1.75;
      -webkit-font-smoothing: antialiased;
    }
    a { color: inherit; text-decoration: none; transition: all 0.25s ease; }
    a:hover { color: var(--alert-orange); }
    img { max-width: 100%; height: auto; display: block; }
    h1, h2, h3, h4, h5 {
      color: var(--industrial-black);
      font-weight: 700;
      line-height: 1.3;
      margin-top: 0;
    }
    .site-header {
      background: #FFFFFF;
      border-bottom: 2px solid var(--brand-yellow);
      box-shadow: 0 2px 10px rgba(0,0,0,0.03);
      position: sticky;
      top: 0;
      z-index: 100;
    }
    .nav-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 72px;
    }
    .site-logo {
      display: inline-flex;
      align-items: center;
      gap: 10px;
      font-size: 1.45rem;
      font-weight: 800;
      color: var(--industrial-black);
      letter-spacing: -0.5px;
    }
    .logo-sign {
      width: 38px;
      height: 38px;
      background: var(--brand-yellow);
      color: var(--industrial-black);
      display: flex;
      align-items: center;
      justify-content: center;
      border-radius: var(--radius-sm);
      font-size: 1.2rem;
      border: 2px solid var(--industrial-black);
    }
    .nav-menu {
      display: flex;
      align-items: center;
      list-style: none;
      margin: 0;
      padding: 0;
      gap: 28px;
    }
    .nav-item a {
      font-size: 0.95rem;
      font-weight: 600;
      color: var(--industrial-black);
      padding: 6px 0;
      position: relative;
    }
    .nav-item a:hover,
    .nav-item.active a {
      color: var(--alert-orange);
    }
    .nav-item.active a::after {
      content: "";
      position: absolute;
      bottom: -2px;
      left: 0;
      width: 100%;
      height: 2px;
      background: var(--brand-yellow);
    }
    .btn-nav-action {
      background: var(--brand-yellow);
      color: var(--industrial-black);
      font-weight: 700;
      font-size: 0.9rem;
      padding: 9px 20px;
      border-radius: var(--radius-sm);
      border: 1px solid var(--industrial-black);
      box-shadow: 2px 2px 0 var(--industrial-black);
      display: inline-flex;
      align-items: center;
      gap: 6px;
    }
    .btn-nav-action:hover {
      background: var(--brand-amber);
      color: var(--industrial-black);
      transform: translate(-1px, -1px);
      box-shadow: 3px 3px 0 var(--industrial-black);
    }
    .section-wrap {
      padding: 72px 0;
    }
    .section-wrap-dark {
      background: var(--industrial-black);
      color: #F8FAFC;
    }
    .section-wrap-dark h2,
    .section-wrap-dark h3,
    .section-wrap-dark h4 {
      color: #FFFFFF;
    }
    .section-wrap-alt {
      background: #F1F5F9;
    }
    .sec-header {
      margin-bottom: 44px;
    }
    .sec-header.text-center {
      text-align: center;
    }
    .sec-badge {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      padding: 4px 12px;
      background: rgba(255, 184, 0, 0.15);
      color: var(--industrial-black);
      border: 1px solid var(--brand-yellow);
      border-radius: var(--radius-sm);
      font-size: 0.82rem;
      font-weight: 700;
      margin-bottom: 12px;
    }
    .sec-badge-dark {
      background: rgba(255, 184, 0, 0.2);
      color: var(--brand-yellow);
      border-color: var(--brand-yellow);
    }
    .sec-title {
      font-size: 2.1rem;
      margin-bottom: 14px;
    }
    .sec-desc {
      font-size: 1.02rem;
      color: var(--text-muted);
      max-width: 820px;
      margin: 0 auto;
    }
    .section-wrap-dark .sec-desc {
      color: #94A3B8;
    }

    /* Hero */
    .hero-container {
      background: linear-gradient(rgba(15,23,42,0.85), rgba(15,23,42,0.92)), url('/assets/images/3879553ebbbc755e.jpg') center/cover no-repeat;
      padding: 85px 0 75px;
      color: #FFFFFF;
      border-bottom: 3px solid var(--brand-yellow);
    }
    .hero-h1 {
      font-size: 2.75rem;
      color: #FFFFFF;
      margin-bottom: 18px;
      line-height: 1.25;
    }
    .hero-h1 span {
      color: var(--brand-yellow);
    }
    .hero-lead {
      font-size: 1.08rem;
      color: #E2E8F0;
      margin-bottom: 30px;
      line-height: 1.8;
    }
    .hero-actions {
      display: flex;
      flex-wrap: wrap;
      gap: 14px;
      margin-bottom: 35px;
    }
    .btn-main {
      background: var(--brand-yellow);
      color: var(--industrial-black);
      padding: 13px 28px;
      font-weight: 700;
      font-size: 0.98rem;
      border-radius: var(--radius-sm);
      border: 1px solid var(--brand-yellow);
      display: inline-flex;
      align-items: center;
      gap: 8px;
    }
    .btn-main:hover {
      background: #E5A600;
      color: var(--industrial-black);
    }
    .btn-ghost {
      background: transparent;
      color: #FFFFFF;
      padding: 13px 28px;
      font-weight: 700;
      font-size: 0.98rem;
      border-radius: var(--radius-sm);
      border: 1px solid rgba(255,255,255,0.4);
      display: inline-flex;
      align-items: center;
      gap: 8px;
    }
    .btn-ghost:hover {
      background: rgba(255,255,255,0.1);
      color: #FFFFFF;
      border-color: #FFFFFF;
    }
    .hero-card {
      background: #FFFFFF;
      border-radius: var(--radius-md);
      padding: 24px;
      color: var(--industrial-black);
      box-shadow: 0 10px 30px rgba(0,0,0,0.3);
      border-top: 4px solid var(--brand-yellow);
    }
    .hero-card-img {
      height: 200px;
      border-radius: var(--radius-sm);
      overflow: hidden;
      margin-bottom: 18px;
      background: #0F172A;
    }
    .hero-card-img img {
      width: 100%;
      height: 100%;
      object-fit: cover;
    }
    .hero-card-title {
      font-size: 1.25rem;
      font-weight: 700;
      margin-bottom: 10px;
    }
    .hero-card-txt {
      font-size: 0.92rem;
      color: var(--text-muted);
      line-height: 1.65;
      margin-bottom: 16px;
    }
    .hero-card-meta {
      display: flex;
      align-items: center;
      justify-content: space-between;
      border-top: 1px solid var(--border-color);
      padding-top: 12px;
      font-size: 0.85rem;
      color: var(--text-muted);
    }

    /* Feature Cards */
    .feature-card {
      background: #FFFFFF;
      padding: 30px 24px;
      border-radius: var(--radius-md);
      box-shadow: var(--shadow-soft);
      border: 1px solid var(--border-color);
      height: 100%;
      transition: all 0.25s ease;
      position: relative;
    }
    .feature-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-hover);
      border-color: var(--brand-yellow);
    }
    .feat-icon {
      width: 52px;
      height: 52px;
      background: rgba(255, 184, 0, 0.12);
      color: var(--alert-orange);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.4rem;
      border-radius: var(--radius-sm);
      margin-bottom: 20px;
      border: 1px solid rgba(255, 184, 0, 0.4);
    }
    .feature-card h3 {
      font-size: 1.2rem;
      margin-bottom: 12px;
    }
    .feature-card p {
      font-size: 0.92rem;
      color: var(--text-muted);
      margin-bottom: 0;
      line-height: 1.7;
    }

    /* Scenario Box */
    .scenario-box {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      overflow: hidden;
      height: 100%;
      box-shadow: var(--shadow-soft);
    }
    .scenario-img {
      height: 200px;
      overflow: hidden;
      background: #0F172A;
    }
    .scenario-img img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform 0.3s ease;
    }
    .scenario-box:hover .scenario-img img {
      transform: scale(1.04);
    }
    .scenario-body {
      padding: 24px;
    }
    .scenario-tag {
      display: inline-block;
      font-size: 0.75rem;
      font-weight: 700;
      color: var(--alert-orange);
      background: #FFF7ED;
      border: 1px solid #FFEDD5;
      padding: 2px 8px;
      border-radius: var(--radius-sm);
      margin-bottom: 10px;
    }

    /* Console Board */
    .console-board {
      background: #111827;
      border: 1px solid #374151;
      border-radius: var(--radius-md);
      padding: 24px;
      color: #E5E7EB;
    }
    .console-header {
      display: flex;
      align-items: center;
      justify-content: space-between;
      border-bottom: 1px solid #374151;
      padding-bottom: 12px;
      margin-bottom: 20px;
      font-family: monospace;
      font-size: 0.85rem;
    }
    .console-dots {
      display: flex;
      gap: 6px;
    }
    .dot {
      width: 10px;
      height: 10px;
      border-radius: 50%;
    }
    .dot-red { background: #EF4444; }
    .dot-yellow { background: #F59E0B; }
    .dot-green { background: #10B981; }
    .alarm-row {
      display: flex;
      align-items: center;
      justify-content: space-between;
      padding: 10px 14px;
      background: #1F2937;
      border-radius: var(--radius-sm);
      margin-bottom: 10px;
      border-left: 3px solid var(--brand-yellow);
      font-size: 0.88rem;
    }
    .alarm-status {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      font-weight: 600;
      color: var(--brand-yellow);
    }

    /* Plan Table */
    .plan-card {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 30px 24px;
      text-align: center;
      position: relative;
      transition: all 0.25s ease;
      height: 100%;
    }
    .plan-card.featured {
      border: 2px solid var(--brand-yellow);
      box-shadow: 0 10px 30px rgba(255, 184, 0, 0.15);
    }
    .plan-badge {
      position: absolute;
      top: -12px;
      left: 50%;
      transform: translateX(-50%);
      background: var(--brand-yellow);
      color: var(--industrial-black);
      font-size: 0.75rem;
      font-weight: 800;
      padding: 2px 14px;
      border-radius: 20px;
    }
    .plan-level {
      font-size: 1.3rem;
      font-weight: 700;
      margin-bottom: 8px;
    }
    .plan-price {
      font-size: 1.8rem;
      font-weight: 800;
      color: var(--alert-orange);
      margin-bottom: 16px;
    }
    .plan-list {
      list-style: none;
      margin: 0 0 24px;
      padding: 0;
      text-align: left;
      font-size: 0.88rem;
      color: var(--text-muted);
    }
    .plan-list li {
      padding: 8px 0;
      border-bottom: 1px dashed var(--border-color);
      display: flex;
      align-items: center;
      gap: 8px;
    }
    .plan-list li i {
      color: #10B981;
    }

    /* Article Card */
    .article-card {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      overflow: hidden;
      display: flex;
      flex-direction: column;
      height: 100%;
      box-shadow: var(--shadow-soft);
      transition: all 0.25s ease;
    }
    .article-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-hover);
      border-color: var(--brand-yellow);
    }
    .article-thumb {
      height: 180px;
      overflow: hidden;
      background: #0F172A;
    }
    .article-thumb img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform 0.3s ease;
    }
    .article-card:hover .article-thumb img {
      transform: scale(1.05);
    }
    .article-content {
      padding: 20px;
      display: flex;
      flex-direction: column;
      flex-grow: 1;
    }
    .article-cat {
      font-size: 0.78rem;
      color: var(--alert-orange);
      font-weight: 700;
      margin-bottom: 6px;
    }
    .article-title {
      font-size: 1.1rem;
      font-weight: 700;
      margin-bottom: 10px;
      line-height: 1.4;
    }
    .article-title a:hover {
      color: var(--alert-orange);
    }
    .article-excerpt {
      font-size: 0.88rem;
      color: var(--text-muted);
      line-height: 1.6;
      margin-bottom: 16px;
      flex-grow: 1;
    }
    .article-footer {
      display: flex;
      align-items: center;
      justify-content: space-between;
      font-size: 0.8rem;
      color: #94A3B8;
      border-top: 1px solid #F1F5F9;
      padding-top: 10px;
    }

    /* Metrics & Testimonial */
    .metric-box {
      text-align: center;
      padding: 24px;
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      box-shadow: var(--shadow-soft);
    }
    .metric-val {
      font-size: 2.2rem;
      font-weight: 800;
      color: var(--brand-amber);
      line-height: 1.1;
      margin-bottom: 6px;
    }
    .metric-label {
      font-size: 0.92rem;
      color: var(--text-muted);
      font-weight: 600;
    }

    .quote-box {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 24px;
      height: 100%;
      box-shadow: var(--shadow-soft);
    }
    .quote-txt {
      font-size: 0.92rem;
      color: var(--text-main);
      font-style: italic;
      margin-bottom: 16px;
      line-height: 1.65;
    }
    .quote-author {
      display: flex;
      align-items: center;
      gap: 12px;
    }
    .author-avatar {
      width: 42px;
      height: 42px;
      background: #E2E8F0;
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      color: var(--industrial-black);
    }
    .author-name {
      font-size: 0.92rem;
      font-weight: 700;
    }
    .author-role {
      font-size: 0.78rem;
      color: var(--text-muted);
    }

    /* Accordion FAQ */
    .faq-item {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      margin-bottom: 12px;
      padding: 18px 24px;
    }
    .faq-q {
      font-weight: 700;
      font-size: 1.05rem;
      margin-bottom: 8px;
      color: var(--industrial-black);
      display: flex;
      align-items: center;
      gap: 8px;
    }
    .faq-q i {
      color: var(--brand-yellow);
    }
    .faq-a {
      font-size: 0.92rem;
      color: var(--text-muted);
      line-height: 1.7;
      margin: 0;
    }

    /* CTA Banner */
    .cta-banner {
      background: var(--brand-yellow);
      border-radius: var(--radius-md);
      padding: 48px;
      color: var(--industrial-black);
      border: 2px solid var(--industrial-black);
      box-shadow: 4px 4px 0 var(--industrial-black);
      text-align: center;
    }
    .cta-banner h2 {
      font-size: 2.2rem;
      color: var(--industrial-black);
      margin-bottom: 14px;
    }
    .cta-banner p {
      max-width: 680px;
      margin: 0 auto 24px;
      font-size: 1.02rem;
      font-weight: 500;
    }
    .btn-cta-dark {
      background: var(--industrial-black);
      color: #FFFFFF;
      padding: 14px 34px;
      font-weight: 700;
      border-radius: var(--radius-sm);
      font-size: 1rem;
      display: inline-flex;
      align-items: center;
      gap: 8px;
    }
    .btn-cta-dark:hover {
      background: #1E293B;
      color: #FFFFFF;
    }

    /* Footer */
    .site-footer {
      background: #0B1120;
      color: #94A3B8;
      padding: 60px 0 24px;
      border-top: 4px solid var(--brand-yellow);
      font-size: 0.9rem;
    }
    .footer-col h4 {
      color: #FFFFFF;
      font-size: 1.05rem;
      margin-bottom: 18px;
      position: relative;
      padding-bottom: 8px;
    }
    .footer-col h4::after {
      content: "";
      position: absolute;
      bottom: 0;
      left: 0;
      width: 28px;
      height: 2px;
      background: var(--brand-yellow);
    }
    .footer-links {
      list-style: none;
      margin: 0;
      padding: 0;
    }
    .footer-links li {
      margin-bottom: 8px;
    }
    .footer-links a:hover {
      color: var(--brand-yellow);
    }
    .footer-bottom {
      border-top: 1px solid #1E293B;
      padding-top: 24px;
      margin-top: 40px;
      text-align: center;
      font-size: 0.82rem;
    }

    @media screen and (max-width: 768px) {
      .hero-h1 { font-size: 2rem; }
      .sec-title { font-size: 1.7rem; }
      .section-wrap { padding: 48px 0; }
      .cta-banner { padding: 28px 18px; }
      .cta-banner h2 { font-size: 1.7rem; }
      .nav-menu { gap: 14px; }
    }

/* roulang page: article */
:root {
      --brand-yellow: #FFB800;
      --brand-amber: #F59E0B;
      --alert-orange: #EA580C;
      --industrial-black: #0F172A;
      --charcoal: #1E293B;
      --card-bg: #FFFFFF;
      --text-main: #1E293B;
      --text-muted: #64748B;
      --bg-light: #F8FAFC;
      --border-color: #E2E8F0;
      --radius-sm: 4px;
      --radius-md: 8px;
      --shadow-soft: 0 4px 20px -2px rgba(15, 23, 42, 0.06);
      --shadow-hover: 0 12px 28px -4px rgba(15, 23, 42, 0.12);
    }
    body {
      margin: 0;
      padding: 0;
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      background-color: var(--bg-light);
      color: var(--text-main);
      line-height: 1.75;
      -webkit-font-smoothing: antialiased;
    }
    a { color: inherit; text-decoration: none; transition: all 0.25s ease; }
    a:hover { color: var(--alert-orange); }
    img { max-width: 100%; height: auto; display: block; }
    .site-header {
      background: #FFFFFF;
      border-bottom: 2px solid var(--brand-yellow);
      box-shadow: 0 2px 10px rgba(0,0,0,0.03);
      position: sticky;
      top: 0;
      z-index: 100;
    }
    .nav-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 72px;
    }
    .site-logo {
      display: inline-flex;
      align-items: center;
      gap: 10px;
      font-size: 1.45rem;
      font-weight: 800;
      color: var(--industrial-black);
      letter-spacing: -0.5px;
    }
    .logo-sign {
      width: 38px;
      height: 38px;
      background: var(--brand-yellow);
      color: var(--industrial-black);
      display: flex;
      align-items: center;
      justify-content: center;
      border-radius: var(--radius-sm);
      font-size: 1.2rem;
      border: 2px solid var(--industrial-black);
    }
    .nav-menu {
      display: flex;
      align-items: center;
      list-style: none;
      margin: 0;
      padding: 0;
      gap: 28px;
    }
    .nav-item a {
      font-size: 0.95rem;
      font-weight: 600;
      color: var(--industrial-black);
      padding: 6px 0;
      position: relative;
    }
    .nav-item a:hover,
    .nav-item.active a {
      color: var(--alert-orange);
    }
    .nav-item.active a::after {
      content: "";
      position: absolute;
      bottom: -2px;
      left: 0;
      width: 100%;
      height: 2px;
      background: var(--brand-yellow);
    }
    .btn-nav-action {
      background: var(--brand-yellow);
      color: var(--industrial-black);
      font-weight: 700;
      font-size: 0.9rem;
      padding: 9px 20px;
      border-radius: var(--radius-sm);
      border: 1px solid var(--industrial-black);
      box-shadow: 2px 2px 0 var(--industrial-black);
      display: inline-flex;
      align-items: center;
      gap: 6px;
    }
    .btn-nav-action:hover {
      background: var(--brand-amber);
      color: var(--industrial-black);
      transform: translate(-1px, -1px);
      box-shadow: 3px 3px 0 var(--industrial-black);
    }
    .section-wrap {
      padding: 64px 0;
    }
    .section-wrap-alt {
      background: #F1F5F9;
    }
    .sec-badge {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      padding: 4px 12px;
      background: rgba(255, 184, 0, 0.15);
      color: var(--industrial-black);
      border: 1px solid var(--brand-yellow);
      border-radius: var(--radius-sm);
      font-size: 0.82rem;
      font-weight: 700;
      margin-bottom: 12px;
    }
    .btn-main {
      background: var(--brand-yellow);
      color: var(--industrial-black);
      padding: 12px 24px;
      font-weight: 700;
      font-size: 0.95rem;
      border-radius: var(--radius-sm);
      border: 1px solid var(--brand-yellow);
      display: inline-flex;
      align-items: center;
      gap: 8px;
    }
    .btn-main:hover {
      background: #E5A600;
      color: var(--industrial-black);
    }
    .btn-ghost {
      background: transparent;
      color: var(--industrial-black);
      padding: 12px 24px;
      font-weight: 700;
      font-size: 0.95rem;
      border-radius: var(--radius-sm);
      border: 1px solid var(--industrial-black);
      display: inline-flex;
      align-items: center;
      gap: 8px;
    }
    .btn-ghost:hover {
      background: #E2E8F0;
    }

    /* 面包屑与文章头 */
    .article-header-wrap {
      background: #FFFFFF;
      border-bottom: 1px solid var(--border-color);
      padding: 36px 0 28px;
    }
    .crumb-bar {
      display: flex;
      align-items: center;
      gap: 8px;
      font-size: 0.88rem;
      color: var(--text-muted);
      margin-bottom: 18px;
    }
    .crumb-bar a:hover {
      color: var(--alert-orange);
    }
    .crumb-sep {
      color: #CBD5E1;
      font-size: 0.75rem;
    }
    .article-h1 {
      font-size: 2.3rem;
      line-height: 1.35;
      font-weight: 800;
      color: var(--industrial-black);
      margin-bottom: 18px;
    }
    .article-meta-list {
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      gap: 20px;
      font-size: 0.88rem;
      color: var(--text-muted);
      border-top: 1px dashed var(--border-color);
      padding-top: 14px;
    }
    .meta-tag {
      display: inline-flex;
      align-items: center;
      gap: 6px;
    }
    .meta-tag i {
      color: var(--brand-amber);
    }
    .badge-category {
      background: rgba(234, 88, 12, 0.1);
      color: var(--alert-orange);
      padding: 2px 10px;
      border-radius: var(--radius-sm);
      font-weight: 600;
    }

    /* 核心摘要引言盒 */
    .lead-summary-box {
      background: #F8FAFC;
      border: 1px solid var(--border-color);
      border-left: 5px solid var(--brand-yellow);
      padding: 22px 26px;
      border-radius: var(--radius-sm);
      margin-bottom: 34px;
      box-shadow: var(--shadow-soft);
    }
    .lead-summary-title {
      font-size: 1rem;
      font-weight: 700;
      color: var(--industrial-black);
      margin-bottom: 8px;
      display: flex;
      align-items: center;
      gap: 8px;
    }
    .lead-summary-desc {
      font-size: 0.95rem;
      color: #475569;
      line-height: 1.8;
      margin: 0;
    }

    /* 文章双栏排版与正文样式 */
    .article-body-area {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 40px;
      box-shadow: var(--shadow-soft);
    }
    .article-rich-content {
      font-size: 1.05rem;
      line-height: 1.85;
      color: #334155;
    }
    .article-rich-content h2 {
      font-size: 1.6rem;
      font-weight: 700;
      color: var(--industrial-black);
      margin-top: 36px;
      margin-bottom: 16px;
      padding-bottom: 8px;
      border-bottom: 2px solid #F1F5F9;
      position: relative;
    }
    .article-rich-content h2::after {
      content: "";
      position: absolute;
      bottom: -2px;
      left: 0;
      width: 60px;
      height: 2px;
      background: var(--brand-yellow);
    }
    .article-rich-content h3 {
      font-size: 1.25rem;
      font-weight: 700;
      color: var(--industrial-black);
      margin-top: 26px;
      margin-bottom: 12px;
    }
    .article-rich-content p {
      margin-bottom: 20px;
    }
    .article-rich-content ul, 
    .article-rich-content ol {
      margin-bottom: 24px;
      padding-left: 24px;
    }
    .article-rich-content li {
      margin-bottom: 8px;
    }
    .article-rich-content blockquote {
      margin: 24px 0;
      padding: 16px 22px;
      background: #FFFBEB;
      border-left: 4px solid var(--brand-amber);
      color: #92400E;
      font-size: 0.98rem;
      border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
    }
    .article-figure-box {
      margin: 28px 0;
      background: #F8FAFC;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-sm);
      overflow: hidden;
    }
    .article-figure-box img {
      width: 100%;
      height: 380px;
      object-fit: cover;
    }
    .figure-caption {
      padding: 10px 16px;
      font-size: 0.85rem;
      color: var(--text-muted);
      text-align: center;
      background: #FFFFFF;
      border-top: 1px solid var(--border-color);
    }

    /* 侧边栏 Widget */
    .sidebar-sticky-panel {
      position: sticky;
      top: 96px;
      display: flex;
      flex-direction: column;
      gap: 24px;
    }
    .widget-box {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 24px;
      box-shadow: var(--shadow-soft);
    }
    .widget-title {
      font-size: 1.1rem;
      font-weight: 700;
      color: var(--industrial-black);
      padding-bottom: 12px;
      margin-bottom: 16px;
      border-bottom: 1px solid var(--border-color);
      display: flex;
      align-items: center;
      gap: 8px;
    }
    .toc-item-list {
      list-style: none;
      margin: 0;
      padding: 0;
    }
    .toc-item-list li {
      margin-bottom: 10px;
    }
    .toc-item-list a {
      font-size: 0.9rem;
      color: #475569;
      display: flex;
      align-items: center;
      gap: 6px;
      padding: 4px 8px;
      border-radius: var(--radius-sm);
    }
    .toc-item-list a:hover {
      background: #F1F5F9;
      color: var(--alert-orange);
    }
    .spec-callout-card {
      background: linear-gradient(135deg, #0F172A 0%, #1E293B 100%);
      color: #FFFFFF;
      border-radius: var(--radius-md);
      padding: 24px;
      border-top: 4px solid var(--brand-yellow);
    }
    .spec-callout-title {
      font-size: 1.05rem;
      font-weight: 700;
      color: var(--brand-yellow);
      margin-bottom: 12px;
      display: flex;
      align-items: center;
      gap: 8px;
    }
    .spec-callout-text {
      font-size: 0.88rem;
      color: #CBD5E1;
      line-height: 1.7;
      margin-bottom: 16px;
    }

    /* 关键红线警示卡片 */
    .redline-alert-card {
      background: #FEF2F2;
      border: 1px solid #FCA5A5;
      border-left: 6px solid #EF4444;
      border-radius: var(--radius-sm);
      padding: 24px 28px;
      margin-top: 36px;
      margin-bottom: 30px;
    }
    .redline-title {
      font-size: 1.15rem;
      font-weight: 700;
      color: #991B1B;
      display: flex;
      align-items: center;
      gap: 10px;
      margin-bottom: 10px;
    }
    .redline-items {
      margin: 0;
      padding-left: 20px;
      color: #7F1D1D;
      font-size: 0.94rem;
      line-height: 1.75;
    }

    /* 版权与合规引用声明 */
    .article-copyright-note {
      background: #F8FAFC;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-sm);
      padding: 16px 20px;
      font-size: 0.85rem;
      color: var(--text-muted);
      line-height: 1.65;
      margin-top: 30px;
    }
    .article-copyright-note strong {
      color: var(--industrial-black);
    }

    /* 上一篇 / 下一篇导航条 */
    .article-pager-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 20px;
      margin-top: 40px;
      padding-top: 30px;
      border-top: 1px solid var(--border-color);
    }
    .pager-box {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-sm);
      padding: 16px 20px;
      transition: all 0.25s ease;
    }
    .pager-box:hover {
      border-color: var(--brand-yellow);
      box-shadow: var(--shadow-soft);
      transform: translateY(-2px);
    }
    .pager-label {
      font-size: 0.78rem;
      color: var(--text-muted);
      text-transform: uppercase;
      font-weight: 600;
      margin-bottom: 4px;
      display: flex;
      align-items: center;
      gap: 6px;
    }
    .pager-title {
      font-size: 0.95rem;
      font-weight: 600;
      color: var(--industrial-black);
      overflow: hidden;
      text-overflow: ellipsis;
      white-space: nowrap;
    }

    /* 相关推荐网格 */
    .related-card {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      overflow: hidden;
      transition: all 0.25s ease;
      height: 100%;
      display: flex;
      flex-direction: column;
    }
    .related-card:hover {
      box-shadow: var(--shadow-hover);
      transform: translateY(-4px);
      border-color: var(--brand-amber);
    }
    .related-img {
      height: 160px;
      background: #1E293B;
      overflow: hidden;
    }
    .related-img img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform 0.4s ease;
    }
    .related-card:hover .related-img img {
      transform: scale(1.05);
    }
    .related-content {
      padding: 18px;
      flex-grow: 1;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }
    .related-tag {
      font-size: 0.78rem;
      color: var(--alert-orange);
      font-weight: 700;
      margin-bottom: 6px;
    }
    .related-h4 {
      font-size: 1.05rem;
      font-weight: 700;
      color: var(--industrial-black);
      line-height: 1.45;
      margin-bottom: 10px;
    }
    .related-footer {
      display: flex;
      align-items: center;
      justify-content: space-between;
      font-size: 0.82rem;
      color: var(--text-muted);
      border-top: 1px solid #F1F5F9;
      padding-top: 10px;
      margin-top: 12px;
    }

    /* 空状态卡片 */
    .empty-article-box {
      text-align: center;
      padding: 90px 20px;
      background: #FFFFFF;
      border: 1px dashed var(--border-color);
      border-radius: var(--radius-md);
      box-shadow: var(--shadow-soft);
    }
    .empty-icon {
      font-size: 3.5rem;
      color: var(--brand-yellow);
      margin-bottom: 20px;
    }
    .empty-title {
      font-size: 1.6rem;
      font-weight: 700;
      color: var(--industrial-black);
      margin-bottom: 12px;
    }
    .empty-desc {
      font-size: 0.98rem;
      color: var(--text-muted);
      margin-bottom: 28px;
    }

    /* 底部通用样式 */
    .site-footer {
      background: #0B1120;
      color: #94A3B8;
      padding: 60px 0 28px;
      border-top: 4px solid var(--brand-yellow);
      font-size: 0.9rem;
    }
    .site-footer h4 {
      color: #F8FAFC;
      font-size: 1.08rem;
      font-weight: 700;
      margin-bottom: 20px;
      position: relative;
      padding-bottom: 10px;
    }
    .site-footer h4::after {
      content: "";
      position: absolute;
      bottom: 0;
      left: 0;
      width: 32px;
      height: 2px;
      background: var(--brand-yellow);
    }
    .footer-links {
      list-style: none;
      margin: 0;
      padding: 0;
    }
    .footer-links li {
      margin-bottom: 10px;
    }
    .footer-links a {
      color: #94A3B8;
    }
    .footer-links a:hover {
      color: var(--brand-yellow);
      padding-left: 4px;
    }
    .footer-bottom {
      border-top: 1px solid rgba(255,255,255,0.08);
      margin-top: 45px;
      padding-top: 25px;
      text-align: center;
      font-size: 0.85rem;
      color: #64748B;
    }

    @media print, screen and (max-width: 64em) {
      .sidebar-sticky-panel {
        position: static;
        margin-top: 36px;
      }
      .article-h1 {
        font-size: 1.85rem;
      }
    }
    @media print, screen and (max-width: 39.9375em) {
      .nav-menu { display: none; }
      .article-h1 { font-size: 1.55rem; }
      .article-body-area { padding: 22px; }
      .article-pager-grid { grid-template-columns: 1fr; }
    }

/* roulang page: category1 */
:root {
      --brand-yellow: #FFB800;
      --brand-amber: #F59E0B;
      --alert-orange: #EA580C;
      --industrial-black: #0F172A;
      --charcoal: #1E293B;
      --card-bg: #FFFFFF;
      --text-main: #1E293B;
      --text-muted: #64748B;
      --bg-light: #F8FAFC;
      --border-color: #E2E8F0;
      --radius-sm: 4px;
      --radius-md: 8px;
      --shadow-soft: 0 4px 20px -2px rgba(15, 23, 42, 0.06);
      --shadow-hover: 0 12px 28px -4px rgba(15, 23, 42, 0.12);
    }
    body {
      margin: 0;
      padding: 0;
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      background-color: var(--bg-light);
      color: var(--text-main);
      line-height: 1.75;
      -webkit-font-smoothing: antialiased;
    }
    a { color: inherit; text-decoration: none; transition: all 0.25s ease; }
    a:hover { color: var(--alert-orange); }
    img { max-width: 100%; height: auto; display: block; }
    .site-header {
      background: #FFFFFF;
      border-bottom: 2px solid var(--brand-yellow);
      box-shadow: 0 2px 10px rgba(0,0,0,0.03);
      position: sticky;
      top: 0;
      z-index: 100;
    }
    .nav-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 72px;
    }
    .site-logo {
      display: inline-flex;
      align-items: center;
      gap: 10px;
      font-size: 1.45rem;
      font-weight: 800;
      color: var(--industrial-black);
      letter-spacing: -0.5px;
    }
    .logo-sign {
      width: 38px;
      height: 38px;
      background: var(--brand-yellow);
      color: var(--industrial-black);
      display: flex;
      align-items: center;
      justify-content: center;
      border-radius: var(--radius-sm);
      font-size: 1.2rem;
      border: 2px solid var(--industrial-black);
    }
    .nav-menu {
      display: flex;
      align-items: center;
      list-style: none;
      margin: 0;
      padding: 0;
      gap: 28px;
    }
    .nav-item a {
      font-size: 0.95rem;
      font-weight: 600;
      color: var(--industrial-black);
      padding: 6px 0;
      position: relative;
    }
    .nav-item a:hover,
    .nav-item.active a {
      color: var(--alert-orange);
    }
    .nav-item.active a::after {
      content: "";
      position: absolute;
      bottom: -2px;
      left: 0;
      width: 100%;
      height: 2px;
      background: var(--brand-yellow);
    }
    .btn-nav-action {
      background: var(--brand-yellow);
      color: var(--industrial-black);
      font-weight: 700;
      font-size: 0.9rem;
      padding: 9px 20px;
      border-radius: var(--radius-sm);
      border: 1px solid var(--industrial-black);
      box-shadow: 2px 2px 0 var(--industrial-black);
      display: inline-flex;
      align-items: center;
      gap: 6px;
    }
    .btn-nav-action:hover {
      background: var(--brand-amber);
      color: var(--industrial-black);
      transform: translate(-1px, -1px);
      box-shadow: 3px 3px 0 var(--industrial-black);
    }
    .section-wrap {
      padding: 64px 0;
    }
    .section-wrap-alt {
      background: #F1F5F9;
    }
    .section-wrap-dark {
      background: var(--industrial-black);
      color: #F8FAFC;
    }
    .sec-header {
      margin-bottom: 36px;
    }
    .sec-header.text-center {
      text-align: center;
    }
    .sec-badge {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      padding: 4px 12px;
      background: rgba(255, 184, 0, 0.15);
      color: var(--industrial-black);
      border: 1px solid var(--brand-yellow);
      border-radius: var(--radius-sm);
      font-size: 0.82rem;
      font-weight: 700;
      margin-bottom: 12px;
    }
    .sec-badge-dark {
      background: rgba(255, 184, 0, 0.2);
      color: var(--brand-yellow);
      border-color: var(--brand-yellow);
    }
    .sec-title {
      font-size: 2rem;
      font-weight: 800;
      margin-bottom: 12px;
      color: var(--industrial-black);
    }
    .section-wrap-dark .sec-title {
      color: #FFFFFF;
    }
    .sec-desc {
      font-size: 0.98rem;
      color: var(--text-muted);
      max-width: 780px;
      margin: 0 auto;
    }

    /* 板块 1: 分类专属 H1 紧凑 Header */
    .cat-compact-header {
      background: #FFFFFF;
      border-bottom: 1px solid var(--border-color);
      padding: 40px 0 32px;
    }
    .cat-breadcrumb {
      font-size: 0.88rem;
      color: var(--text-muted);
      margin-bottom: 14px;
      display: flex;
      align-items: center;
      gap: 8px;
    }
    .cat-breadcrumb a:hover {
      color: var(--alert-orange);
    }
    .cat-h1 {
      font-size: 2.25rem;
      font-weight: 800;
      color: var(--industrial-black);
      line-height: 1.3;
      margin-bottom: 12px;
      display: flex;
      align-items: center;
      gap: 12px;
    }
    .cat-h1-tag {
      background: var(--brand-yellow);
      color: var(--industrial-black);
      font-size: 0.85rem;
      font-weight: 700;
      padding: 4px 10px;
      border-radius: var(--radius-sm);
      vertical-align: middle;
    }
    .cat-intro {
      font-size: 1.05rem;
      color: var(--text-muted);
      line-height: 1.75;
      margin: 0;
    }

    /* 板块 2: 子维度筛选标签栏 */
    .filter-bar-section {
      background: #FFFFFF;
      padding: 18px 0;
      border-bottom: 1px solid var(--border-color);
    }
    .filter-group {
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      gap: 12px;
    }
    .filter-label {
      font-size: 0.88rem;
      font-weight: 700;
      color: var(--industrial-black);
      margin-right: 6px;
    }
    .filter-pill {
      font-size: 0.86rem;
      font-weight: 600;
      color: var(--text-main);
      background: var(--bg-light);
      border: 1px solid var(--border-color);
      padding: 6px 14px;
      border-radius: 20px;
      cursor: pointer;
      display: inline-flex;
      align-items: center;
      gap: 6px;
      transition: all 0.2s ease;
    }
    .filter-pill:hover,
    .filter-pill.active {
      background: var(--industrial-black);
      color: var(--brand-yellow);
      border-color: var(--industrial-black);
    }

    /* 板块 3: 资讯与资源列表主体区 */
    .news-card {
      background: var(--card-bg);
      border-radius: var(--radius-md);
      overflow: hidden;
      box-shadow: var(--shadow-soft);
      border: 1px solid var(--border-color);
      display: flex;
      flex-direction: column;
      height: 100%;
      transition: transform 0.25s ease, box-shadow 0.25s ease;
    }
    .news-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-hover);
      border-color: var(--brand-yellow);
    }
    .news-thumb {
      height: 180px;
      background: #0F172A;
      position: relative;
      overflow: hidden;
    }
    .news-thumb img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform 0.4s ease;
    }
    .news-card:hover .news-thumb img {
      transform: scale(1.05);
    }
    .news-category-badge {
      position: absolute;
      top: 12px;
      left: 12px;
      background: var(--brand-yellow);
      color: var(--industrial-black);
      font-size: 0.75rem;
      font-weight: 700;
      padding: 3px 8px;
      border-radius: var(--radius-sm);
    }
    .news-content {
      padding: 20px;
      flex: 1;
      display: flex;
      flex-direction: column;
    }
    .news-title {
      font-size: 1.12rem;
      font-weight: 700;
      line-height: 1.45;
      margin-bottom: 10px;
      color: var(--industrial-black);
    }
    .news-title a:hover {
      color: var(--alert-orange);
    }
    .news-excerpt {
      font-size: 0.88rem;
      color: var(--text-muted);
      line-height: 1.65;
      margin-bottom: 16px;
      flex: 1;
    }
    .news-footer {
      display: flex;
      align-items: center;
      justify-content: space-between;
      border-top: 1px solid #F1F5F9;
      padding-top: 12px;
      font-size: 0.82rem;
      color: #94A3B8;
    }
    .news-more-link {
      font-weight: 700;
      color: var(--alert-orange);
      display: inline-flex;
      align-items: center;
      gap: 4px;
    }
    .news-more-link:hover {
      text-decoration: underline;
    }
    .load-more-row {
      margin-top: 36px;
      text-align: center;
    }
    .btn-more-posts {
      background: #FFFFFF;
      border: 2px solid var(--industrial-black);
      color: var(--industrial-black);
      padding: 10px 28px;
      font-weight: 700;
      font-size: 0.92rem;
      border-radius: var(--radius-sm);
      display: inline-flex;
      align-items: center;
      gap: 8px;
    }
    .btn-more-posts:hover {
      background: var(--brand-yellow);
      border-color: var(--brand-yellow);
      color: var(--industrial-black);
    }

    /* 板块 4: 技术标准与参数说明表 */
    .standard-table-wrap {
      background: #FFFFFF;
      border-radius: var(--radius-md);
      box-shadow: var(--shadow-soft);
      border: 1px solid var(--border-color);
      overflow-x: auto;
    }
    .standard-table {
      width: 100%;
      border-collapse: collapse;
      margin: 0;
      font-size: 0.92rem;
    }
    .standard-table th {
      background: #0F172A;
      color: #FFFFFF;
      font-weight: 700;
      padding: 14px 18px;
      text-align: left;
      border: none;
    }
    .standard-table td {
      padding: 14px 18px;
      border-bottom: 1px solid var(--border-color);
      color: var(--text-main);
      vertical-align: middle;
    }
    .standard-table tr:last-child td {
      border-bottom: none;
    }
    .standard-table tr:nth-child(even) {
      background: #F8FAFC;
    }
    .status-badge {
      display: inline-block;
      padding: 3px 8px;
      font-size: 0.78rem;
      font-weight: 700;
      border-radius: var(--radius-sm);
    }
    .status-badge.mandatory {
      background: #FEE2E2;
      color: #DC2626;
      border: 1px solid #FCA5A5;
    }
    .status-badge.strict {
      background: #FEF3C7;
      color: #D97706;
      border: 1px solid #FCD34D;
    }

    /* 板块 5: 重点警戒规范精选推荐大卡 */
    .featured-rule-card {
      background: #FFFFFF;
      border: 2px solid var(--brand-yellow);
      border-radius: var(--radius-md);
      padding: 32px;
      box-shadow: var(--shadow-soft);
      position: relative;
      overflow: hidden;
    }
    .featured-rule-card::before {
      content: "";
      position: absolute;
      top: 0;
      left: 0;
      width: 6px;
      height: 100%;
      background: var(--brand-yellow);
    }
    .featured-badge {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      background: var(--brand-yellow);
      color: var(--industrial-black);
      font-size: 0.82rem;
      font-weight: 800;
      padding: 4px 12px;
      border-radius: var(--radius-sm);
      margin-bottom: 14px;
    }
    .featured-title {
      font-size: 1.5rem;
      font-weight: 800;
      color: var(--industrial-black);
      margin-bottom: 14px;
    }
    .featured-desc {
      font-size: 0.96rem;
      color: var(--text-muted);
      line-height: 1.8;
      margin-bottom: 20px;
    }
    .rule-checklist {
      list-style: none;
      margin: 0 0 20px;
      padding: 0;
    }
    .rule-checklist li {
      margin-bottom: 10px;
      display: flex;
      align-items: flex-start;
      gap: 10px;
      font-size: 0.92rem;
      color: var(--text-main);
    }
    .rule-checklist li i {
      color: var(--alert-orange);
      margin-top: 5px;
    }

    /* 板块 6: 垂直时间线组件 */
    .timeline-container {
      position: relative;
      padding-left: 36px;
      margin: 20px 0;
    }
    .timeline-container::before {
      content: "";
      position: absolute;
      top: 8px;
      bottom: 8px;
      left: 11px;
      width: 2px;
      background: var(--border-color);
    }
    .timeline-item {
      position: relative;
      margin-bottom: 32px;
    }
    .timeline-item:last-child {
      margin-bottom: 0;
    }
    .timeline-dot {
      position: absolute;
      left: -36px;
      top: 4px;
      width: 24px;
      height: 24px;
      background: var(--brand-yellow);
      border: 3px solid #FFFFFF;
      border-radius: 50%;
      box-shadow: 0 0 0 2px var(--industrial-black);
    }
    .timeline-year {
      font-size: 0.85rem;
      font-weight: 800;
      color: var(--alert-orange);
      margin-bottom: 4px;
      text-transform: uppercase;
      letter-spacing: 0.5px;
    }
    .timeline-title {
      font-size: 1.15rem;
      font-weight: 700;
      color: var(--industrial-black);
      margin-bottom: 6px;
    }
    .timeline-text {
      font-size: 0.9rem;
      color: var(--text-muted);
      line-height: 1.65;
      margin: 0;
    }

    /* 板块 7: 专家咨询与技术支援入口 */
    .support-box {
      background: linear-gradient(135deg, #0F172A 0%, #1E293B 100%);
      border-radius: var(--radius-md);
      padding: 40px;
      color: #FFFFFF;
      border-left: 5px solid var(--brand-yellow);
    }
    .support-form-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 16px;
      margin-top: 20px;
    }
    .support-input {
      background: rgba(255,255,255,0.08);
      border: 1px solid rgba(255,255,255,0.2);
      color: #FFFFFF;
      padding: 12px 16px;
      border-radius: var(--radius-sm);
      font-size: 0.9rem;
      width: 100%;
      outline: none;
      box-sizing: border-box;
    }
    .support-input:focus {
      border-color: var(--brand-yellow);
      background: rgba(255,255,255,0.12);
    }
    .btn-submit-support {
      background: var(--brand-yellow);
      color: var(--industrial-black);
      font-weight: 700;
      font-size: 0.95rem;
      padding: 13px 28px;
      border: none;
      border-radius: var(--radius-sm);
      cursor: pointer;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      transition: all 0.25s ease;
    }
    .btn-submit-support:hover {
      background: var(--brand-amber);
      transform: translateY(-1px);
    }

    /* 页脚样式 */
    .site-footer {
      background: #0B1120;
      color: #94A3B8;
      padding: 56px 0 24px;
      border-top: 4px solid var(--brand-yellow);
    }
    .footer-col h4 {
      color: #FFFFFF;
      font-size: 1.05rem;
      font-weight: 700;
      margin-bottom: 20px;
      position: relative;
      padding-bottom: 8px;
    }
    .footer-col h4::after {
      content: "";
      position: absolute;
      bottom: 0;
      left: 0;
      width: 32px;
      height: 2px;
      background: var(--brand-yellow);
    }
    .footer-col p {
      font-size: 0.88rem;
      line-height: 1.7;
    }
    .footer-links {
      list-style: none;
      margin: 0;
      padding: 0;
    }
    .footer-links li {
      margin-bottom: 10px;
    }
    .footer-links a {
      color: #94A3B8;
      font-size: 0.88rem;
    }
    .footer-links a:hover {
      color: var(--brand-yellow);
      padding-left: 4px;
    }
    .footer-bottom {
      margin-top: 44px;
      padding-top: 20px;
      border-top: 1px solid #1E293B;
      text-align: center;
      font-size: 0.82rem;
      color: #64748B;
    }

    @media screen and (max-width: 768px) {
      .nav-menu { display: none; }
      .cat-h1 { font-size: 1.65rem; flex-direction: column; align-items: flex-start; }
      .support-form-grid { grid-template-columns: 1fr; }
      .support-box { padding: 24px; }
      .featured-rule-card { padding: 20px; }
    }