/* roulang page: index */
:root {
      --primary-bg: #08090F;
      --secondary-bg: #0D111E;
      --card-bg: #111827;
      --card-bg-alt: #151F32;
      --accent-1: #0052FF;
      --accent-2: #00F0FF;
      --accent-3: #FF007F;
      --text-main: #FFFFFF;
      --text-secondary: #CBD5E1;
      --text-muted: #8B9BB4;
      --border-color: #1E2A3A;
      --border-glow: rgba(0, 82, 255, 0.35);
      --radius-sm: 8px;
      --radius-md: 14px;
      --radius-lg: 20px;
      --shadow-sm: 0 4px 12px rgba(0,0,0,0.4);
      --shadow-md: 0 8px 24px rgba(0,0,0,0.5);
      --shadow-glow: 0 0 20px rgba(0, 240, 255, 0.2);
      --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
      --font-family: 'Inter', 'Segoe UI', system-ui, -apple-system, sans-serif;
    }

    * {
      margin: 0;
      padding: 0;
      box-sizing: border-box;
    }

    body {
      font-family: var(--font-family);
      background: var(--primary-bg);
      color: var(--text-main);
      line-height: 1.65;
      overflow-x: hidden;
      -webkit-font-smoothing: antialiased;
      -moz-osx-font-smoothing: grayscale;
    }

    a {
      color: var(--accent-2);
      text-decoration: none;
      transition: var(--transition);
    }
    a:hover { color: var(--accent-1); text-decoration: none; }
    a:focus-visible, button:focus-visible {
      outline: 2px solid var(--accent-2);
      outline-offset: 3px;
      border-radius: 4px;
    }

    img { max-width: 100%; display: block; }

    .container-custom {
      width: 100%;
      max-width: 1280px;
      margin-left: auto;
      margin-right: auto;
      padding-left: 24px;
      padding-right: 24px;
    }

    /* ===== NAVIGATION ===== */
    .site-header {
      position: fixed;
      top: 0;
      left: 0;
      right: 0;
      z-index: 1050;
      background: rgba(8, 9, 15, 0.92);
      backdrop-filter: blur(18px);
      -webkit-backdrop-filter: blur(18px);
      border-bottom: 1px solid var(--border-color);
      transition: var(--transition);
    }

    .site-header .navbar {
      padding-top: 14px;
      padding-bottom: 14px;
      background: transparent !important;
    }

    .navbar-brand {
      font-weight: 700;
      font-size: 1.25rem;
      color: var(--text-main) !important;
      letter-spacing: -0.02em;
      display: flex;
      align-items: center;
      gap: 10px;
    }
    .navbar-brand .brand-icon {
      width: 38px;
      height: 38px;
      background: linear-gradient(135deg, var(--accent-1), var(--accent-2));
      border-radius: 10px;
      display: flex;
      align-items: center;
      justify-content: center;
      color: #fff;
      font-size: 1.2rem;
      flex-shrink: 0;
      box-shadow: 0 0 16px rgba(0, 82, 255, 0.4);
    }
    .navbar-brand .brand-text {
      line-height: 1.2;
      font-size: 1.05rem;
    }
    .navbar-brand .brand-text small {
      display: block;
      font-size: 0.7rem;
      font-weight: 500;
      color: var(--text-muted);
      letter-spacing: 0.04em;
    }

    .navbar-nav .nav-link {
      color: var(--text-secondary) !important;
      font-weight: 500;
      font-size: 0.95rem;
      padding: 10px 16px !important;
      border-radius: 8px;
      transition: var(--transition);
      position: relative;
    }
    .navbar-nav .nav-link:hover,
    .navbar-nav .nav-link.active {
      color: var(--text-main) !important;
      background: rgba(255,255,255,0.05);
    }
    .navbar-nav .nav-link.active::after {
      content: '';
      position: absolute;
      bottom: 2px;
      left: 50%;
      transform: translateX(-50%);
      width: 24px;
      height: 3px;
      background: var(--accent-2);
      border-radius: 3px;
      box-shadow: 0 0 8px var(--accent-2);
    }

    .btn-login {
      background: transparent;
      border: 1px solid var(--border-color);
      color: var(--text-main) !important;
      padding: 9px 20px;
      border-radius: 10px;
      font-weight: 600;
      font-size: 0.9rem;
      transition: var(--transition);
    }
    .btn-login:hover {
      border-color: var(--accent-2);
      color: var(--accent-2) !important;
      background: rgba(0, 240, 255, 0.06);
    }
    .btn-signup {
      background: linear-gradient(135deg, var(--accent-1), var(--accent-2));
      border: none;
      color: #fff !important;
      padding: 10px 24px;
      border-radius: 10px;
      font-weight: 700;
      font-size: 0.9rem;
      transition: var(--transition);
      box-shadow: 0 4px 14px rgba(0, 82, 255, 0.35);
    }
    .btn-signup:hover {
      transform: translateY(-2px);
      box-shadow: 0 8px 24px rgba(0, 82, 255, 0.5);
      color: #fff !important;
    }

    .navbar-toggler {
      border: 1px solid var(--border-color);
      background: rgba(255,255,255,0.05);
      padding: 8px 12px;
      border-radius: 8px;
    }
    .navbar-toggler-icon {
      background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba(255,255,255,0.8)' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
    }

    @media (max-width: 991.98px) {
      .navbar-collapse {
        background: rgba(8, 9, 15, 0.98);
        border-radius: 16px;
        padding: 20px;
        margin-top: 12px;
        border: 1px solid var(--border-color);
      }
      .navbar-nav .nav-link {
        padding: 14px 16px !important;
      }
      .btn-login, .btn-signup {
        display: inline-block;
        margin: 6px 8px 6px 0;
      }
    }

    /* ===== HERO ===== */
    .hero-section {
      padding-top: 140px;
      padding-bottom: 80px;
      background: var(--primary-bg);
      position: relative;
      overflow: hidden;
      min-height: 620px;
      display: flex;
      align-items: center;
    }
    .hero-section::before {
      content: '';
      position: absolute;
      top: -20%;
      right: -10%;
      width: 650px;
      height: 650px;
      background: radial-gradient(circle, rgba(0, 82, 255, 0.18) 0%, transparent 70%);
      border-radius: 50%;
      pointer-events: none;
    }
    .hero-section::after {
      content: '';
      position: absolute;
      bottom: -25%;
      left: -8%;
      width: 500px;
      height: 500px;
      background: radial-gradient(circle, rgba(0, 240, 255, 0.1) 0%, transparent 70%);
      border-radius: 50%;
      pointer-events: none;
    }

    .hero-section .container-custom {
      position: relative;
      z-index: 2;
    }

    .hero-label {
      display: inline-block;
      background: rgba(0, 240, 255, 0.1);
      color: var(--accent-2);
      padding: 8px 18px;
      border-radius: 50px;
      font-size: 0.85rem;
      font-weight: 600;
      letter-spacing: 0.03em;
      border: 1px solid rgba(0, 240, 255, 0.25);
      margin-bottom: 22px;
    }
    .hero-title {
      font-size: 2.8rem;
      font-weight: 800;
      line-height: 1.2;
      letter-spacing: -0.03em;
      color: var(--text-main);
      margin-bottom: 20px;
    }
    .hero-title .highlight {
      background: linear-gradient(135deg, var(--accent-2), var(--accent-1));
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      background-clip: text;
    }
    .hero-desc {
      font-size: 1.1rem;
      color: var(--text-secondary);
      max-width: 680px;
      line-height: 1.7;
      margin-bottom: 32px;
    }
    .hero-actions {
      display: flex;
      flex-wrap: wrap;
      gap: 16px;
      margin-bottom: 40px;
    }
    .btn-hero-primary {
      background: linear-gradient(135deg, var(--accent-1), var(--accent-2));
      color: #fff;
      border: none;
      padding: 15px 32px;
      border-radius: 12px;
      font-weight: 700;
      font-size: 1rem;
      transition: var(--transition);
      box-shadow: 0 8px 24px rgba(0, 82, 255, 0.4);
    }
    .btn-hero-primary:hover {
      transform: translateY(-3px);
      box-shadow: 0 12px 32px rgba(0, 82, 255, 0.55);
      color: #fff;
    }
    .btn-hero-secondary {
      background: transparent;
      border: 1px solid var(--border-color);
      color: var(--text-main);
      padding: 15px 28px;
      border-radius: 12px;
      font-weight: 600;
      font-size: 1rem;
      transition: var(--transition);
    }
    .btn-hero-secondary:hover {
      border-color: var(--accent-2);
      background: rgba(0, 240, 255, 0.06);
      color: var(--accent-2);
    }
    .hero-stats {
      display: flex;
      gap: 40px;
      flex-wrap: wrap;
    }
    .hero-stat-item {
      display: flex;
      align-items: center;
      gap: 12px;
    }
    .hero-stat-item .stat-value {
      font-size: 1.8rem;
      font-weight: 800;
      color: var(--accent-2);
      line-height: 1;
    }
    .hero-stat-item .stat-label {
      font-size: 0.85rem;
      color: var(--text-muted);
      max-width: 120px;
      line-height: 1.3;
    }

    .hero-cover-wrapper {
      position: relative;
      display: flex;
      align-items: center;
      justify-content: center;
      min-height: 420px;
    }
    .hero-cover-frame {
      position: relative;
      width: 100%;
      max-width: 480px;
      background: var(--card-bg);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 28px;
      box-shadow: var(--shadow-md), var(--shadow-glow);
      transition: var(--transition);
    }
    .hero-cover-frame:hover {
      border-color: var(--accent-2);
      box-shadow: 0 12px 40px rgba(0, 240, 255, 0.25);
    }
    .hero-cover-frame .cover-badge {
      position: absolute;
      top: -14px;
      right: 24px;
      background: var(--accent-3);
      color: #fff;
      padding: 6px 16px;
      border-radius: 20px;
      font-size: 0.75rem;
      font-weight: 700;
      letter-spacing: 0.04em;
      box-shadow: 0 4px 12px rgba(255, 0, 127, 0.4);
    }
    .hero-cover-frame .cover-img {
      width: 100%;
      height: 240px;
      object-fit: cover;
      border-radius: 12px;
      margin-bottom: 20px;
      background: var(--secondary-bg);
    }
    .hero-cover-frame .cover-title {
      font-size: 1.2rem;
      font-weight: 700;
      margin-bottom: 8px;
      color: var(--text-main);
    }
    .hero-cover-frame .cover-meta {
      font-size: 0.85rem;
      color: var(--text-muted);
      display: flex;
      align-items: center;
      gap: 16px;
      margin-bottom: 16px;
    }
    .hero-cover-frame .cover-progress {
      height: 6px;
      background: var(--border-color);
      border-radius: 4px;
      overflow: hidden;
      margin-bottom: 12px;
    }
    .hero-cover-frame .cover-progress .progress-fill {
      height: 100%;
      background: linear-gradient(90deg, var(--accent-1), var(--accent-2));
      width: 72%;
      border-radius: 4px;
      box-shadow: 0 0 8px rgba(0, 240, 255, 0.4);
    }
    .hero-cover-frame .cover-cta {
      width: 100%;
      background: linear-gradient(135deg, var(--accent-1), var(--accent-2));
      border: none;
      color: #fff;
      padding: 14px 20px;
      border-radius: 10px;
      font-weight: 700;
      font-size: 0.95rem;
      transition: var(--transition);
      text-align: center;
      display: block;
    }
    .hero-cover-frame .cover-cta:hover {
      transform: translateY(-2px);
      box-shadow: 0 8px 20px rgba(0, 82, 255, 0.4);
      color: #fff;
    }

    /* ===== SECTION COMMON ===== */
    .section-block {
      padding-top: 70px;
      padding-bottom: 70px;
      position: relative;
    }
    .section-block.bg-alt {
      background: var(--secondary-bg);
    }
    .section-label {
      display: inline-block;
      font-size: 0.8rem;
      font-weight: 700;
      letter-spacing: 0.08em;
      text-transform: uppercase;
      color: var(--accent-2);
      margin-bottom: 14px;
      border-left: 3px solid var(--accent-2);
      padding-left: 14px;
    }
    .section-title {
      font-size: 2rem;
      font-weight: 800;
      letter-spacing: -0.02em;
      line-height: 1.3;
      color: var(--text-main);
      margin-bottom: 16px;
    }
    .section-desc {
      font-size: 1.02rem;
      color: var(--text-secondary);
      max-width: 720px;
      line-height: 1.7;
      margin-bottom: 40px;
    }

    /* ===== CATEGORY GRID ===== */
    .category-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .category-card {
      background: var(--card-bg);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 28px;
      transition: var(--transition);
      position: relative;
      overflow: hidden;
      display: flex;
      flex-direction: column;
      min-height: 280px;
    }
    .category-card::before {
      content: '';
      position: absolute;
      top: 0;
      left: 0;
      right: 0;
      height: 3px;
      background: linear-gradient(90deg, var(--accent-1), var(--accent-2));
      opacity: 0;
      transition: var(--transition);
    }
    .category-card:hover {
      border-color: var(--accent-2);
      box-shadow: var(--shadow-md), var(--shadow-glow);
      transform: translateY(-4px);
    }
    .category-card:hover::before { opacity: 1; }
    .category-card .cat-icon {
      width: 52px;
      height: 52px;
      background: rgba(0, 82, 255, 0.12);
      border-radius: 14px;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.5rem;
      color: var(--accent-2);
      margin-bottom: 18px;
    }
    .category-card h3 {
      font-size: 1.2rem;
      font-weight: 700;
      margin-bottom: 10px;
      color: var(--text-main);
    }
    .category-card p {
      font-size: 0.92rem;
      color: var(--text-muted);
      line-height: 1.65;
      flex-grow: 1;
    }
    .category-card .cat-link {
      margin-top: 18px;
      font-weight: 600;
      font-size: 0.9rem;
      color: var(--accent-2);
      display: inline-flex;
      align-items: center;
      gap: 6px;
    }
    .category-card .cat-link:hover {
      color: var(--accent-1);
      gap: 10px;
    }

    /* ===== RANKING LIST ===== */
    .ranking-table {
      background: var(--card-bg);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      overflow: hidden;
      box-shadow: var(--shadow-sm);
    }
    .ranking-table .rank-header {
      display: grid;
      grid-template-columns: 60px 1fr 90px 90px;
      padding: 16px 20px;
      background: var(--card-bg-alt);
      font-size: 0.8rem;
      font-weight: 700;
      text-transform: uppercase;
      letter-spacing: 0.05em;
      color: var(--text-muted);
      border-bottom: 1px solid var(--border-color);
    }
    .ranking-table .rank-row {
      display: grid;
      grid-template-columns: 60px 1fr 90px 90px;
      padding: 16px 20px;
      align-items: center;
      border-bottom: 1px solid var(--border-color);
      transition: var(--transition);
      font-size: 0.92rem;
      color: var(--text-secondary);
    }
    .ranking-table .rank-row:last-child { border-bottom: none; }
    .ranking-table .rank-row:hover {
      background: rgba(255,255,255,0.03);
    }
    .ranking-table .rank-num {
      font-weight: 800;
      font-size: 1.1rem;
      color: var(--accent-2);
    }
    .ranking-table .rank-num.top1 { color: #FFD700; }
    .ranking-table .rank-num.top2 { color: #C0C0C0; }
    .ranking-table .rank-num.top3 { color: #CD7F32; }
    .ranking-table .rank-hot {
      color: var(--accent-3);
      font-weight: 600;
      font-size: 0.85rem;
    }
    .ranking-table .rank-trend {
      color: #4ADE80;
      font-weight: 600;
      font-size: 0.85rem;
    }

    /* ===== VERTICAL CARD ===== */
    .vertical-card-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
    }
    .vertical-card {
      background: var(--card-bg);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      overflow: hidden;
      transition: var(--transition);
      cursor: pointer;
      position: relative;
    }
    .vertical-card:hover {
      border-color: var(--accent-2);
      transform: translateY(-6px);
      box-shadow: var(--shadow-md), var(--shadow-glow);
    }
    .vertical-card .vc-img {
      width: 100%;
      height: 200px;
      object-fit: cover;
      background: var(--secondary-bg);
      position: relative;
    }
    .vertical-card .vc-tag {
      position: absolute;
      top: 12px;
      left: 12px;
      background: rgba(255, 0, 127, 0.9);
      color: #fff;
      padding: 4px 12px;
      border-radius: 20px;
      font-size: 0.7rem;
      font-weight: 700;
      letter-spacing: 0.03em;
    }
    .vertical-card .vc-body {
      padding: 18px;
    }
    .vertical-card .vc-title {
      font-size: 1rem;
      font-weight: 700;
      margin-bottom: 8px;
      color: var(--text-main);
      line-height: 1.4;
    }
    .vertical-card .vc-desc {
      font-size: 0.85rem;
      color: var(--text-muted);
      margin-bottom: 14px;
      line-height: 1.5;
    }
    .vertical-card .vc-cta {
      font-size: 0.85rem;
      font-weight: 600;
      color: var(--accent-2);
      display: inline-flex;
      align-items: center;
      gap: 6px;
    }
    .vertical-card .vc-cta:hover { color: var(--accent-1); }

    /* ===== GUEST HIGHLIGHTS ===== */
    .guest-slider {
      display: flex;
      gap: 20px;
      overflow-x: auto;
      padding-bottom: 16px;
      scroll-snap-type: x mandatory;
      -webkit-overflow-scrolling: touch;
    }
    .guest-slider::-webkit-scrollbar {
      height: 6px;
      background: var(--border-color);
      border-radius: 4px;
    }
    .guest-slider::-webkit-scrollbar-thumb {
      background: var(--accent-1);
      border-radius: 4px;
    }
    .guest-card {
      min-width: 280px;
      max-width: 280px;
      background: var(--card-bg);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 24px;
      scroll-snap-align: start;
      transition: var(--transition);
      flex-shrink: 0;
    }
    .guest-card:hover {
      border-color: var(--accent-2);
      box-shadow: var(--shadow-md);
    }
    .guest-card .guest-avatar {
      width: 64px;
      height: 64px;
      background: linear-gradient(135deg, var(--accent-1), var(--accent-2));
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.6rem;
      color: #fff;
      margin-bottom: 16px;
    }
    .guest-card .guest-name {
      font-size: 1.1rem;
      font-weight: 700;
      margin-bottom: 6px;
      color: var(--text-main);
    }
    .guest-card .guest-role {
      font-size: 0.8rem;
      color: var(--accent-2);
      font-weight: 600;
      margin-bottom: 12px;
    }
    .guest-card .guest-desc {
      font-size: 0.88rem;
      color: var(--text-muted);
      line-height: 1.6;
      margin-bottom: 14px;
    }
    .guest-card .guest-link {
      font-size: 0.85rem;
      font-weight: 600;
      color: var(--accent-2);
    }

    /* ===== LATEST NEWS ===== */
    .news-layout {
      display: grid;
      grid-template-columns: 1.6fr 1fr;
      gap: 32px;
    }
    .news-list {
      background: var(--card-bg);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 24px;
      box-shadow: var(--shadow-sm);
    }
    .news-list .news-item {
      display: flex;
      gap: 16px;
      padding: 14px 0;
      border-bottom: 1px solid var(--border-color);
      transition: var(--transition);
      align-items: flex-start;
    }
    .news-list .news-item:last-child { border-bottom: none; }
    .news-list .news-item:hover {
      padding-left: 8px;
    }
    .news-list .news-date {
      min-width: 70px;
      font-size: 0.8rem;
      color: var(--text-muted);
      font-weight: 600;
      padding-top: 2px;
    }
    .news-list .news-content {
      flex: 1;
    }
    .news-list .news-title {
      font-size: 1rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 4px;
      line-height: 1.45;
    }
    .news-list .news-title:hover {
      color: var(--accent-2);
    }
    .news-list .news-excerpt {
      font-size: 0.88rem;
      color: var(--text-muted);
      line-height: 1.55;
    }
    .news-sidebar {
      display: flex;
      flex-direction: column;
      gap: 20px;
    }
    .news-sidebar .sidebar-card {
      background: var(--card-bg);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 22px;
      box-shadow: var(--shadow-sm);
      transition: var(--transition);
    }
    .news-sidebar .sidebar-card:hover {
      border-color: var(--accent-1);
    }
    .news-sidebar .sidebar-card h4 {
      font-size: 1rem;
      font-weight: 700;
      margin-bottom: 12px;
      color: var(--text-main);
    }
    .news-sidebar .sidebar-card .sidebar-img {
      width: 100%;
      height: 140px;
      object-fit: cover;
      border-radius: 10px;
      margin-bottom: 12px;
      background: var(--secondary-bg);
    }
    .news-sidebar .sidebar-card p {
      font-size: 0.85rem;
      color: var(--text-muted);
      line-height: 1.55;
      margin-bottom: 12px;
    }
    .news-sidebar .sidebar-card .sidebar-link {
      font-size: 0.85rem;
      font-weight: 600;
      color: var(--accent-2);
    }

    /* ===== HOT RECOMMEND ===== */
    .hot-recommend-grid {
      display: grid;
      grid-template-columns: 1.4fr 1fr 1fr;
      gap: 24px;
    }
    .hot-main-card {
      background: var(--card-bg);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      overflow: hidden;
      transition: var(--transition);
      position: relative;
      min-height: 380px;
    }
    .hot-main-card:hover {
      border-color: var(--accent-2);
      box-shadow: var(--shadow-md), var(--shadow-glow);
    }
    .hot-main-card .hm-img {
      width: 100%;
      height: 240px;
      object-fit: cover;
      background: var(--secondary-bg);
    }
    .hot-main-card .hm-body {
      padding: 22px;
    }
    .hot-main-card .hm-tag {
      position: absolute;
      top: 16px;
      left: 16px;
      background: var(--accent-3);
      color: #fff;
      padding: 6px 16px;
      border-radius: 20px;
      font-size: 0.75rem;
      font-weight: 700;
    }
    .hot-main-card .hm-title {
      font-size: 1.25rem;
      font-weight: 700;
      margin-bottom: 8px;
      color: var(--text-main);
    }
    .hot-main-card .hm-desc {
      font-size: 0.92rem;
      color: var(--text-muted);
      margin-bottom: 14px;
      line-height: 1.6;
    }
    .hot-small-card {
      background: var(--card-bg);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      overflow: hidden;
      transition: var(--transition);
      display: flex;
      flex-direction: column;
    }
    .hot-small-card:hover {
      border-color: var(--accent-2);
      transform: translateY(-4px);
      box-shadow: var(--shadow-md);
    }
    .hot-small-card .hs-img {
      width: 100%;
      height: 160px;
      object-fit: cover;
      background: var(--secondary-bg);
    }
    .hot-small-card .hs-body {
      padding: 18px;
      flex: 1;
      display: flex;
      flex-direction: column;
    }
    .hot-small-card .hs-title {
      font-size: 1rem;
      font-weight: 700;
      margin-bottom: 6px;
      color: var(--text-main);
    }
    .hot-small-card .hs-desc {
      font-size: 0.85rem;
      color: var(--text-muted);
      flex: 1;
      line-height: 1.5;
    }
    .hot-small-card .hs-link {
      margin-top: 12px;
      font-size: 0.85rem;
      font-weight: 600;
      color: var(--accent-2);
    }

    /* ===== FAQ ===== */
    .faq-list {
      max-width: 900px;
    }
    .faq-item {
      background: var(--card-bg);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      margin-bottom: 14px;
      overflow: hidden;
      transition: var(--transition);
    }
    .faq-item:hover {
      border-color: var(--accent-1);
    }
    .faq-item .faq-question {
      padding: 18px 24px;
      font-size: 1rem;
      font-weight: 700;
      color: var(--text-main);
      cursor: pointer;
      display: flex;
      justify-content: space-between;
      align-items: center;
      background: transparent;
      border: none;
      width: 100%;
      text-align: left;
      transition: var(--transition);
    }
    .faq-item .faq-question .faq-icon {
      transition: var(--transition);
      color: var(--accent-2);
      font-size: 1.1rem;
      flex-shrink: 0;
      margin-left: 16px;
    }
    .faq-item .faq-answer {
      padding: 0 24px 18px;
      font-size: 0.92rem;
      color: var(--text-muted);
      line-height: 1.65;
      display: none;
    }
    .faq-item.open .faq-answer {
      display: block;
    }
    .faq-item.open .faq-icon {
      transform: rotate(180deg);
    }

    /* ===== CTA ===== */
    .cta-section {
      background: var(--secondary-bg);
      border-top: 1px solid var(--border-color);
      border-bottom: 1px solid var(--border-color);
      padding-top: 60px;
      padding-bottom: 60px;
    }
    .cta-box {
      background: linear-gradient(135deg, var(--accent-1), var(--accent-2));
      border-radius: var(--radius-lg);
      padding: 48px;
      text-align: center;
      position: relative;
      overflow: hidden;
    }
    .cta-box::before {
      content: '';
      position: absolute;
      top: -50%;
      right: -20%;
      width: 400px;
      height: 400px;
      background: rgba(255,255,255,0.08);
      border-radius: 50%;
    }
    .cta-box h2 {
      font-size: 2rem;
      font-weight: 800;
      color: #fff;
      margin-bottom: 16px;
      position: relative;
      z-index: 2;
    }
    .cta-box p {
      font-size: 1.05rem;
      color: rgba(255,255,255,0.9);
      max-width: 600px;
      margin: 0 auto 28px;
      position: relative;
      z-index: 2;
      line-height: 1.7;
    }
    .cta-box .btn-cta-white {
      background: #fff;
      color: var(--accent-1);
      border: none;
      padding: 15px 36px;
      border-radius: 12px;
      font-weight: 700;
      font-size: 1rem;
      transition: var(--transition);
      position: relative;
      z-index: 2;
      box-shadow: 0 8px 24px rgba(0,0,0,0.25);
    }
    .cta-box .btn-cta-white:hover {
      transform: translateY(-3px);
      box-shadow: 0 12px 32px rgba(0,0,0,0.35);
      color: var(--accent-1);
    }

    /* ===== FOOTER ===== */
    .site-footer {
      background: var(--primary-bg);
      padding-top: 60px;
      padding-bottom: 30px;
      border-top: 1px solid var(--border-color);
    }
    .footer-brand {
      font-size: 1.2rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 14px;
    }
    .footer-brand small {
      display: block;
      font-size: 0.75rem;
      color: var(--text-muted);
      font-weight: 500;
      margin-top: 4px;
    }
    .footer-desc {
      font-size: 0.9rem;
      color: var(--text-muted);
      line-height: 1.6;
      max-width: 360px;
    }
    .footer-heading {
      font-size: 0.95rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 16px;
      letter-spacing: 0.02em;
    }
    .footer-links {
      list-style: none;
      padding: 0;
      margin: 0;
    }
    .footer-links li {
      margin-bottom: 10px;
    }
    .footer-links a {
      font-size: 0.88rem;
      color: var(--text-muted);
      transition: var(--transition);
    }
    .footer-links a:hover {
      color: var(--accent-2);
      padding-left: 4px;
    }
    .footer-bottom {
      margin-top: 40px;
      padding-top: 24px;
      border-top: 1px solid var(--border-color);
      text-align: center;
      font-size: 0.82rem;
      color: var(--text-muted);
    }
    .footer-badge {
      display: inline-block;
      background: rgba(0, 240, 255, 0.08);
      color: var(--accent-2);
      border: 1px solid rgba(0, 240, 255, 0.2);
      padding: 4px 12px;
      border-radius: 20px;
      font-size: 0.72rem;
      font-weight: 600;
      margin-right: 8px;
    }

    /* ===== FAB ===== */
    .fab-left {
      position: fixed;
      left: 20px;
      bottom: 96px;
      z-index: 1050;
      width: 56px;
      height: 56px;
      border-radius: 50%;
      background: rgba(8, 9, 15, 0.85);
      backdrop-filter: blur(12px);
      -webkit-backdrop-filter: blur(12px);
      border: 2px solid transparent;
      background-clip: padding-box;
      position: relative;
      display: flex;
      align-items: center;
      justify-content: center;
      cursor: pointer;
      transition: var(--transition);
      opacity: 0.65;
      box-shadow: 0 0 20px rgba(0, 240, 255, 0.4);
    }
    .fab-left::before {
      content: '';
      position: absolute;
      inset: -2px;
      border-radius: 50%;
      background: linear-gradient(135deg, #00F0FF, #0052FF);
      z-index: -1;
      opacity: 0.7;
    }
    .fab-left:hover {
      opacity: 1;
      transform: scale(1.1);
      box-shadow: 0 0 32px rgba(0, 240, 255, 0.6);
    }
    .fab-left:active {
      transform: scale(0.95);
    }
    .fab-left .fab-icon {
      font-size: 1.5rem;
      color: var(--accent-2);
      animation: fab-pulse 2s infinite;
    }
    .fab-left .fab-notif {
      position: absolute;
      top: 2px;
      right: 2px;
      width: 14px;
      height: 14px;
      background: var(--accent-3);
      border-radius: 50%;
      border: 2px solid var(--primary-bg);
      animation: blink 1.5s infinite;
    }
    @keyframes fab-pulse {
      0%, 100% { opacity: 0.7; }
      50% { opacity: 1; }
    }
    @keyframes blink {
      0%, 100% { opacity: 1; }
      50% { opacity: 0.4; }
    }

    /* ===== RESPONSIVE ===== */
    @media (max-width: 1024px) {
      .hero-title { font-size: 2.2rem; }
      .category-grid { grid-template-columns: repeat(2, 1fr); }
      .vertical-card-grid { grid-template-columns: repeat(2, 1fr); }
      .hot-recommend-grid { grid-template-columns: 1fr; }
      .news-layout { grid-template-columns: 1fr; }
    }
    @media (max-width: 768px) {
      .hero-section { padding-top: 110px; padding-bottom: 50px; min-height: auto; }
      .hero-title { font-size: 1.8rem; }
      .hero-desc { font-size: 1rem; }
      .hero-stats { gap: 24px; }
      .hero-stat-item .stat-value { font-size: 1.4rem; }
      .hero-cover-wrapper { min-height: auto; margin-top: 30px; }
      .section-title { font-size: 1.6rem; }
      .category-grid { grid-template-columns: 1fr; }
      .vertical-card-grid { grid-template-columns: 1fr; }
      .ranking-table .rank-header,
      .ranking-table .rank-row { grid-template-columns: 40px 1fr 70px; font-size: 0.8rem; }
      .ranking-table .rank-header .hide-mobile,
      .ranking-table .rank-row .hide-mobile { display: none; }
      .cta-box { padding: 32px 20px; }
      .cta-box h2 { font-size: 1.5rem; }
      .fab-left { left: 14px; bottom: 80px; width: 48px; height: 48px; }
      .fab-left .fab-icon { font-size: 1.3rem; }
      .container-custom { padding-left: 16px; padding-right: 16px; }
      .guest-card { min-width: 240px; max-width: 240px; }
    }
    @media (max-width: 520px) {
      .hero-title { font-size: 1.5rem; }
      .hero-actions { flex-direction: column; }
      .btn-hero-primary, .btn-hero-secondary { width: 100%; text-align: center; }
      .hero-stats { gap: 16px; flex-direction: column; }
      .section-title { font-size: 1.4rem; }
      .navbar-brand .brand-text { font-size: 0.9rem; }
      .btn-login, .btn-signup { padding: 8px 16px; font-size: 0.85rem; }
    }

/* roulang page: category1 */
:root {
            --primary-bg: #0A2E1C;
            --secondary-bg: #123E25;
            --accent-gold: #FFD700;
            --accent-red: #D32F2F;
            --text-white: #FFFFFF;
            --text-pale-mint: #D1F2EB;
            --text-muted: #A0C4B8;
            --border-gold: rgba(255, 215, 0, 0.4);
            --border-subtle: rgba(255, 255, 255, 0.08);
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 22px;
            --shadow-sm: 0 4px 12px rgba(0,0,0,0.3);
            --shadow-md: 0 8px 28px rgba(0,0,0,0.45);
            --shadow-gold: 0 4px 20px rgba(255,215,0,0.15);
            --font-body: 'Segoe UI', 'Roboto', 'Helvetica Neue', Arial, sans-serif;
            --spacing-section: 5rem;
            --spacing-card: 1.75rem;
        }
        
        * {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        
        html {
            scroll-behavior: smooth;
        }
        
        body {
            font-family: var(--font-body);
            background-color: var(--primary-bg);
            color: var(--text-white);
            line-height: 1.65;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }
        
        a {
            color: var(--accent-gold);
            text-decoration: none;
            transition: color 0.25s ease, opacity 0.25s ease;
        }
        
        a:hover, a:focus {
            color: #FFE55C;
            text-decoration: none;
        }
        
        a:focus-visible, button:focus-visible {
            outline: 2px solid var(--accent-gold);
            outline-offset: 3px;
            border-radius: 4px;
        }
        
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        
        .container-custom {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding-left: 1.5rem;
            padding-right: 1.5rem;
        }
        
        /* ========== HEADER / NAV ========== */
        .site-header {
            background: rgba(10, 46, 28, 0.96);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border-bottom: 1px solid var(--border-subtle);
            position: sticky;
            top: 0;
            z-index: 1050;
            box-shadow: 0 4px 24px rgba(0,0,0,0.35);
        }
        
        .navbar {
            padding-top: 0.8rem;
            padding-bottom: 0.8rem;
        }
        
        .navbar-brand {
            display: flex;
            align-items: center;
            gap: 0.75rem;
            font-weight: 700;
            color: var(--text-white);
            line-height: 1.2;
        }
        
        .navbar-brand:hover, .navbar-brand:focus {
            color: var(--accent-gold);
        }
        
        .brand-icon {
            width: 46px;
            height: 46px;
            background: linear-gradient(135deg, #FFD700, #D32F2F);
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #0A2E1C;
            font-size: 1.5rem;
            flex-shrink: 0;
            box-shadow: var(--shadow-gold);
        }
        
        .brand-text {
            display: flex;
            flex-direction: column;
            font-size: 1.1rem;
            font-weight: 700;
            letter-spacing: 0.02em;
            color: var(--text-white);
        }
        
        .brand-text small {
            font-size: 0.7rem;
            font-weight: 500;
            color: var(--accent-gold);
            letter-spacing: 0.05em;
        }
        
        .navbar-nav .nav-link {
            color: var(--text-pale-mint);
            font-weight: 500;
            padding: 0.5rem 1.1rem;
            border-radius: 50px;
            transition: all 0.25s ease;
            font-size: 0.95rem;
            position: relative;
        }
        
        .navbar-nav .nav-link:hover {
            color: var(--accent-gold);
            background: rgba(255, 215, 0, 0.06);
        }
        
        .navbar-nav .nav-link.active {
            color: var(--accent-gold);
            background: rgba(255, 215, 0, 0.1);
            font-weight: 600;
        }
        
        .navbar-nav .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: 4px;
            left: 50%;
            transform: translateX(-50%);
            width: 18px;
            height: 2px;
            background: var(--accent-gold);
            border-radius: 2px;
        }
        
        .btn-login {
            color: var(--text-pale-mint);
            font-weight: 600;
            padding: 0.5rem 1.2rem;
            border: none;
            background: transparent;
            border-radius: 50px;
            transition: all 0.25s ease;
            font-size: 0.9rem;
            white-space: nowrap;
        }
        
        .btn-login:hover {
            color: var(--accent-gold);
            background: rgba(255, 215, 0, 0.08);
        }
        
        .btn-signup {
            background: linear-gradient(135deg, #FFD700, #F0C000);
            color: #0A2E1C;
            font-weight: 700;
            padding: 0.55rem 1.4rem;
            border: none;
            border-radius: 50px;
            box-shadow: 0 4px 16px rgba(255, 215, 0, 0.35);
            transition: all 0.3s ease;
            font-size: 0.9rem;
            white-space: nowrap;
        }
        
        .btn-signup:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(255, 215, 0, 0.5);
            background: linear-gradient(135deg, #FFE55C, #FFD700);
            color: #0A2E1C;
        }
        
        .navbar-toggler {
            border: 1px solid rgba(255,255,255,0.2);
            padding: 0.5rem 0.7rem;
        }
        
        .navbar-toggler-icon {
            background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba%28255, 215, 0, 0.8%29' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
        }
        
        /* ========== BREADCRUMB ========== */
        .breadcrumb-section {
            background: var(--secondary-bg);
            padding: 1.5rem 0;
            border-bottom: 1px solid var(--border-subtle);
        }
        
        .breadcrumb-custom {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 0.6rem;
            font-size: 0.9rem;
            color: var(--text-muted);
            margin: 0;
        }
        
        .breadcrumb-custom a {
            color: var(--text-pale-mint);
        }
        
        .breadcrumb-custom a:hover {
            color: var(--accent-gold);
        }
        
        .breadcrumb-separator {
            color: var(--accent-gold);
            font-size: 0.75rem;
        }
        
        .breadcrumb-current {
            color: var(--accent-gold);
            font-weight: 600;
        }
        
        /* ========== HERO ========== */
        .hero-category {
            background: linear-gradient(135deg, #0A2E1C 0%, #123E25 40%, #1A4D30 100%);
            padding: 4rem 0 3.5rem;
            position: relative;
            overflow: hidden;
        }
        
        .hero-category::before {
            content: '';
            position: absolute;
            top: -80px;
            right: -80px;
            width: 320px;
            height: 320px;
            background: radial-gradient(circle, rgba(255,215,0,0.08), transparent 70%);
            border-radius: 50%;
        }
        
        .hero-category::after {
            content: '';
            position: absolute;
            bottom: -60px;
            left: -60px;
            width: 260px;
            height: 260px;
            background: radial-gradient(circle, rgba(211,47,47,0.07), transparent 70%);
            border-radius: 50%;
        }
        
        .hero-tag {
            display: inline-block;
            background: rgba(255, 215, 0, 0.12);
            color: var(--accent-gold);
            border: 1px solid var(--border-gold);
            padding: 0.35rem 1.2rem;
            border-radius: 50px;
            font-size: 0.85rem;
            font-weight: 600;
            letter-spacing: 0.04em;
            margin-bottom: 1.5rem;
        }
        
        .hero-title {
            font-size: clamp(2rem, 4.5vw, 3.2rem);
            font-weight: 800;
            line-height: 1.2;
            margin-bottom: 1.25rem;
            color: var(--text-white);
        }
        
        .hero-title .highlight {
            color: var(--accent-gold);
            background: rgba(255, 215, 0, 0.08);
            padding: 0.1rem 0.4rem;
            border-radius: 4px;
        }
        
        .hero-subtitle {
            font-size: 1.1rem;
            color: var(--text-pale-mint);
            max-width: 720px;
            line-height: 1.7;
            margin-bottom: 2rem;
        }
        
        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 1rem;
            align-items: center;
        }
        
        .btn-primary-gold {
            background: linear-gradient(135deg, #FFD700, #F0C000);
            color: #0A2E1C;
            font-weight: 700;
            padding: 0.8rem 2.2rem;
            border: none;
            border-radius: 50px;
            font-size: 1rem;
            box-shadow: 0 6px 20px rgba(255, 215, 0, 0.35);
            transition: all 0.3s ease;
            display: inline-flex;
            align-items: center;
            gap: 0.6rem;
        }
        
        .btn-primary-gold:hover {
            transform: translateY(-3px);
            box-shadow: 0 12px 32px rgba(255, 215, 0, 0.5);
            background: linear-gradient(135deg, #FFE55C, #FFD700);
            color: #0A2E1C;
        }
        
        .btn-outline-mint {
            background: transparent;
            color: var(--text-pale-mint);
            font-weight: 600;
            padding: 0.8rem 2.2rem;
            border: 1px solid rgba(209, 242, 235, 0.35);
            border-radius: 50px;
            font-size: 1rem;
            transition: all 0.3s ease;
            display: inline-flex;
            align-items: center;
            gap: 0.6rem;
        }
        
        .btn-outline-mint:hover {
            background: rgba(209, 242, 235, 0.08);
            border-color: var(--accent-gold);
            color: var(--accent-gold);
            transform: translateY(-3px);
        }
        
        .hero-stats {
            display: flex;
            flex-wrap: wrap;
            gap: 2.5rem;
            margin-top: 2.5rem;
            padding-top: 2rem;
            border-top: 1px solid var(--border-subtle);
        }
        
        .stat-item {
            display: flex;
            flex-direction: column;
            gap: 0.2rem;
        }
        
        .stat-value {
            font-size: 1.7rem;
            font-weight: 800;
            color: var(--accent-gold);
            line-height: 1.1;
        }
        
        .stat-label {
            font-size: 0.85rem;
            color: var(--text-muted);
            letter-spacing: 0.03em;
        }
        
        .hero-image-wrapper {
            position: relative;
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-md);
            border: 1px solid var(--border-subtle);
        }
        
        .hero-image-wrapper img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            min-height: 340px;
        }
        
        .hero-image-overlay {
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            background: linear-gradient(transparent, rgba(10,46,28,0.9));
            padding: 2rem 1.5rem 1.2rem;
        }
        
        .hero-image-overlay .badge-live {
            background: var(--accent-red);
            color: #fff;
            padding: 0.3rem 0.9rem;
            border-radius: 50px;
            font-size: 0.75rem;
            font-weight: 700;
            letter-spacing: 0.05em;
        }
        
        /* ========== SECTION COMMON ========== */
        .section {
            padding: var(--spacing-section) 0;
        }
        
        .section-alt {
            background: var(--secondary-bg);
        }
        
        .section-header {
            margin-bottom: 2.5rem;
        }
        
        .section-tag {
            display: inline-block;
            font-size: 0.8rem;
            font-weight: 700;
            letter-spacing: 0.08em;
            text-transform: uppercase;
            color: var(--accent-gold);
            margin-bottom: 0.7rem;
        }
        
        .section-title {
            font-size: clamp(1.6rem, 3vw, 2.3rem);
            font-weight: 800;
            line-height: 1.3;
            color: var(--text-white);
            margin-bottom: 0.8rem;
        }
        
        .section-desc {
            font-size: 1rem;
            color: var(--text-pale-mint);
            max-width: 700px;
            line-height: 1.7;
        }
        
        /* ========== METHOD CARDS ========== */
        .method-card {
            background: rgba(255, 255, 255, 0.03);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-md);
            padding: 2rem 1.8rem;
            height: 100%;
            transition: all 0.35s ease;
            position: relative;
            overflow: hidden;
        }
        
        .method-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: linear-gradient(90deg, var(--accent-gold), var(--accent-red));
            opacity: 0;
            transition: opacity 0.35s ease;
        }
        
        .method-card:hover {
            border-color: var(--border-gold);
            box-shadow: var(--shadow-md);
            transform: translateY(-4px);
            background: rgba(255, 255, 255, 0.05);
        }
        
        .method-card:hover::before {
            opacity: 1;
        }
        
        .method-icon {
            width: 56px;
            height: 56px;
            border-radius: 14px;
            background: rgba(255, 215, 0, 0.1);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--accent-gold);
            font-size: 1.5rem;
            margin-bottom: 1.2rem;
        }
        
        .method-card h3 {
            font-size: 1.2rem;
            font-weight: 700;
            margin-bottom: 0.8rem;
            color: var(--text-white);
        }
        
        .method-card p {
            color: var(--text-muted);
            font-size: 0.92rem;
            margin-bottom: 0;
            line-height: 1.7;
        }
        
        .method-number {
            position: absolute;
            top: 1.5rem;
            right: 1.5rem;
            font-size: 2.5rem;
            font-weight: 800;
            color: rgba(255, 255, 255, 0.05);
            line-height: 1;
            pointer-events: none;
        }
        
        /* ========== DATA BAR ========== */
        .data-bar {
            background: var(--secondary-bg);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-md);
            padding: 2rem;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 2rem;
            margin-top: 3rem;
        }
        
        .data-bar-item {
            flex: 1 1 180px;
            text-align: left;
        }
        
        .data-bar-value {
            font-size: 2rem;
            font-weight: 800;
            color: var(--accent-gold);
            line-height: 1.1;
        }
        
        .data-bar-label {
            color: var(--text-muted);
            font-size: 0.9rem;
            margin-top: 0.3rem;
        }
        
        /* ========== FLOW STEPS ========== */
        .step-flow {
            display: flex;
            flex-direction: column;
            gap: 0;
            position: relative;
            padding-left: 2.5rem;
        }
        
        .step-flow::before {
            content: '';
            position: absolute;
            left: 1.15rem;
            top: 0;
            bottom: 0;
            width: 2px;
            background: linear-gradient(180deg, var(--accent-gold), rgba(255,215,0,0.1));
        }
        
        .step-item {
            position: relative;
            padding-bottom: 2.5rem;
        }
        
        .step-item:last-child {
            padding-bottom: 0;
        }
        
        .step-dot {
            position: absolute;
            left: -2.5rem;
            top: 0.25rem;
            width: 2.3rem;
            height: 2.3rem;
            background: var(--accent-gold);
            color: #0A2E1C;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 0.9rem;
            box-shadow: 0 0 0 4px rgba(255, 215, 0, 0.15);
        }
        
        .step-item h3 {
            font-size: 1.15rem;
            font-weight: 700;
            color: var(--text-white);
            margin-bottom: 0.4rem;
        }
        
        .step-item p {
            color: var(--text-muted);
            font-size: 0.92rem;
            margin-bottom: 0;
            line-height: 1.7;
        }
        
        /* ========== TIP BOX ========== */
        .tip-box {
            background: rgba(255, 215, 0, 0.06);
            border-left: 4px solid var(--accent-gold);
            border-radius: 0 var(--radius-md) var(--radius-md) 0;
            padding: 1.5rem 1.8rem;
            margin-top: 2rem;
        }
        
        .tip-box h4 {
            color: var(--accent-gold);
            font-weight: 700;
            margin-bottom: 0.5rem;
            font-size: 1.05rem;
        }
        
        .tip-box p {
            color: var(--text-pale-mint);
            font-size: 0.95rem;
            margin-bottom: 0;
            line-height: 1.7;
        }
        
        /* ========== FAQ ========== */
        .faq-accordion .accordion-item {
            background: rgba(255, 255, 255, 0.03);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-md) !important;
            margin-bottom: 1rem;
            overflow: hidden;
        }
        
        .faq-accordion .accordion-button {
            background: transparent;
            color: var(--text-white);
            font-weight: 600;
            padding: 1.3rem 1.6rem;
            font-size: 1rem;
            box-shadow: none;
        }
        
        .faq-accordion .accordion-button:not(.collapsed) {
            background: rgba(255, 215, 0, 0.06);
            color: var(--accent-gold);
            box-shadow: none;
        }
        
        .faq-accordion .accordion-button::after {
            filter: brightness(0) invert(1) sepia(1) saturate(5) hue-rotate(10deg);
        }
        
        .faq-accordion .accordion-button:focus {
            box-shadow: none;
            border-color: var(--border-gold);
        }
        
        .faq-accordion .accordion-body {
            color: var(--text-muted);
            font-size: 0.95rem;
            line-height: 1.7;
            padding: 0 1.6rem 1.4rem;
        }
        
        /* ========== CTA ========== */
        .cta-section {
            background: linear-gradient(135deg, var(--secondary-bg) 0%, #1A4D30 100%);
            border-radius: var(--radius-lg);
            padding: 3.5rem 2.5rem;
            position: relative;
            overflow: hidden;
            border: 1px solid var(--border-gold);
        }
        
        .cta-section::before {
            content: '';
            position: absolute;
            top: -60px;
            right: -60px;
            width: 220px;
            height: 220px;
            background: radial-gradient(circle, rgba(255,215,0,0.1), transparent 70%);
            border-radius: 50%;
        }
        
        .cta-section h2 {
            font-size: clamp(1.6rem, 3vw, 2.2rem);
            font-weight: 800;
            color: var(--text-white);
            margin-bottom: 1rem;
        }
        
        .cta-section p {
            color: var(--text-pale-mint);
            font-size: 1.05rem;
            max-width: 600px;
            margin-bottom: 1.8rem;
            line-height: 1.7;
        }
        
        /* ========== FOOTER ========== */
        .site-footer {
            background: #071F13;
            border-top: 1px solid var(--border-subtle);
            padding: 4rem 0 2rem;
            margin-top: var(--spacing-section);
        }
        
        .footer-brand {
            font-size: 1.3rem;
            font-weight: 800;
            color: var(--text-white);
            line-height: 1.3;
            margin-bottom: 0.3rem;
        }
        
        .footer-brand small {
            display: block;
            font-size: 0.8rem;
            font-weight: 500;
            color: var(--accent-gold);
            margin-top: 0.2rem;
        }
        
        .footer-desc {
            color: var(--text-muted);
            font-size: 0.9rem;
            line-height: 1.7;
            margin-top: 1rem;
        }
        
        .footer-badge {
            display: inline-flex;
            align-items: center;
            background: rgba(255, 215, 0, 0.08);
            color: var(--accent-gold);
            border: 1px solid var(--border-gold);
            border-radius: 50px;
            padding: 0.35rem 1rem;
            font-size: 0.8rem;
            font-weight: 600;
            margin-right: 0.5rem;
            margin-bottom: 0.5rem;
        }
        
        .footer-heading {
            font-size: 1rem;
            font-weight: 700;
            color: var(--text-white);
            margin-bottom: 1.2rem;
            letter-spacing: 0.03em;
        }
        
        .footer-links {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        
        .footer-links li {
            margin-bottom: 0.7rem;
        }
        
        .footer-links a {
            color: var(--text-muted);
            font-size: 0.9rem;
            transition: all 0.25s ease;
            display: inline-flex;
            align-items: center;
        }
        
        .footer-links a:hover {
            color: var(--accent-gold);
            transform: translateX(3px);
        }
        
        .footer-bottom {
            border-top: 1px solid var(--border-subtle);
            margin-top: 3rem;
            padding-top: 1.5rem;
            text-align: center;
        }
        
        .footer-bottom p {
            color: var(--text-muted);
            font-size: 0.82rem;
            line-height: 1.6;
        }
        
        /* ========== FAB ========== */
        .fab-float {
            position: fixed;
            left: 1.2rem;
            bottom: 6rem;
            z-index: 1080;
            width: 56px;
            height: 56px;
            background: #0A0A0A;
            border: 2px solid var(--accent-gold);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--accent-gold);
            font-size: 1.4rem;
            box-shadow: 0 4px 20px rgba(255,215,0,0.3);
            opacity: 0.7;
            animation: fabBreathe 3s ease-in-out infinite;
            transition: all 0.3s ease;
            cursor: pointer;
        }
        
        .fab-float:hover {
            opacity: 1;
            transform: scale(1.1);
            box-shadow: 0 8px 30px rgba(255,215,0,0.5);
        }
        
        .fab-float:active {
            transform: scale(0.95) translateY(2px);
        }
        
        .fab-notification {
            position: absolute;
            top: -2px;
            right: -2px;
            width: 14px;
            height: 14px;
            background: var(--accent-red);
            border-radius: 50%;
            border: 2px solid #0A0A0A;
            animation: blinkDot 1.5s ease-in-out infinite;
        }
        
        @keyframes fabBreathe {
            0%, 100% { transform: translateY(0); }
            50% { transform: translateY(-6px); }
        }
        
        @keyframes blinkDot {
            0%, 100% { opacity: 1; }
            50% { opacity: 0.3; }
        }
        
        /* ========== RESPONSIVE ========== */
        @media (max-width: 991.98px) {
            .hero-category {
                padding: 3rem 0 2.5rem;
            }
            .hero-title {
                font-size: 2.2rem;
            }
            .hero-stats {
                gap: 1.5rem;
            }
            .section {
                padding: 3.5rem 0;
            }
            .cta-section {
                padding: 2.5rem 1.8rem;
            }
        }
        
        @media (max-width: 767.98px) {
            .hero-category {
                padding: 2.5rem 0 2rem;
            }
            .hero-title {
                font-size: 1.8rem;
            }
            .hero-subtitle {
                font-size: 1rem;
            }
            .hero-actions {
                flex-direction: column;
                align-items: flex-start;
            }
            .btn-primary-gold, .btn-outline-mint {
                width: 100%;
                justify-content: center;
            }
            .hero-stats {
                gap: 1rem;
                flex-wrap: wrap;
            }
            .stat-value {
                font-size: 1.4rem;
            }
            .section {
                padding: 3rem 0;
            }
            .data-bar {
                padding: 1.5rem;
                gap: 1.2rem;
            }
            .data-bar-value {
                font-size: 1.6rem;
            }
            .method-card {
                padding: 1.5rem;
            }
            .step-flow {
                padding-left: 2rem;
            }
            .step-flow::before {
                left: 0.9rem;
            }
            .step-dot {
                left: -2rem;
                width: 1.8rem;
                height: 1.8rem;
                font-size: 0.75rem;
            }
            .site-footer {
                padding: 3rem 0 1.5rem;
            }
            .fab-float {
                width: 48px;
                height: 48px;
                font-size: 1.2rem;
                left: 0.8rem;
                bottom: 5rem;
            }
            .brand-text {
                font-size: 0.95rem;
            }
            .brand-icon {
                width: 40px;
                height: 40px;
                font-size: 1.2rem;
            }
        }
        
        @media (max-width: 520px) {
            .hero-title {
                font-size: 1.5rem;
            }
            .hero-tag {
                font-size: 0.75rem;
                padding: 0.3rem 0.9rem;
            }
            .section-title {
                font-size: 1.4rem;
            }
            .data-bar {
                flex-direction: column;
                gap: 1rem;
            }
            .data-bar-item {
                flex: none;
                width: 100%;
            }
            .container-custom {
                padding-left: 1rem;
                padding-right: 1rem;
            }
        }

/* roulang page: article */
:root {
            --primary-deep: #08090F;
            --primary-navy: #0D111E;
            --accent-blue: #0052FF;
            --accent-cyan: #00F0FF;
            --text-white: #FFFFFF;
            --text-silver: #CBD5E1;
            --text-muted: #94A3B8;
            --border-dark: #1E293B;
            --border-accent: rgba(0,240,255,0.35);
            --radius-sm: 4px;
            --radius-md: 8px;
            --radius-lg: 14px;
            --shadow-card: 0 8px 24px rgba(0,0,0,0.45);
            --shadow-hover: 0 16px 40px rgba(0,82,255,0.28);
            --font-sans: 'Inter','Be Vietnam Pro',system-ui,-apple-system,'Segoe UI',Roboto,Arial,sans-serif;
            --spacing-1: 4px;
            --spacing-2: 8px;
            --spacing-3: 16px;
            --spacing-4: 24px;
            --spacing-5: 32px;
            --spacing-6: 48px;
            --spacing-7: 64px;
            --spacing-8: 96px;
        }
        * { box-sizing: border-box; }
        html { scroll-behavior: smooth; }
        body {
            margin: 0;
            font-family: var(--font-sans);
            background: var(--primary-deep);
            color: var(--text-white);
            line-height: 1.6;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        a { text-decoration: none; transition: color 0.22s ease; }
        a:focus-visible, button:focus-visible {
            outline: 2px solid var(--accent-cyan);
            outline-offset: 3px;
            border-radius: 2px;
        }
        img { max-width: 100%; display: block; }
        .container-custom {
            width: 100%;
            max-width: 1240px;
            margin: 0 auto;
            padding-left: 24px;
            padding-right: 24px;
        }
        /* ---------- HEADER ---------- */
        .site-header {
            background: rgba(8,9,15,0.92);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border-dark);
            position: sticky;
            top: 0;
            z-index: 1000;
            transition: background 0.25s ease;
        }
        .navbar { padding-top: 14px; padding-bottom: 14px; }
        .navbar-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 700;
            color: var(--text-white) !important;
            line-height: 1.15;
        }
        .brand-icon {
            width: 40px;
            height: 40px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 8px;
            background: linear-gradient(135deg, var(--accent-blue), var(--accent-cyan));
            color: #fff;
            font-size: 20px;
            box-shadow: 0 0 14px rgba(0,240,255,0.35);
        }
        .brand-text { font-size: 17px; letter-spacing: 0.02em; }
        .brand-text small {
            display: block;
            font-size: 11px;
            font-weight: 500;
            color: var(--accent-cyan);
            letter-spacing: 0.08em;
            text-transform: uppercase;
        }
        .navbar-nav .nav-link {
            color: var(--text-silver) !important;
            font-weight: 500;
            font-size: 14px;
            padding: 8px 14px !important;
            border-radius: 6px;
            transition: all 0.2s ease;
            position: relative;
        }
        .navbar-nav .nav-link:hover { color: #fff !important; background: rgba(0,240,255,0.06); }
        .navbar-nav .nav-link.active {
            color: var(--accent-cyan) !important;
            background: rgba(0,240,255,0.08);
        }
        .btn-login {
            padding: 8px 18px;
            border-radius: 6px;
            font-weight: 600;
            font-size: 14px;
            color: var(--text-white);
            border: 1px solid var(--border-dark);
            transition: all 0.2s ease;
            white-space: nowrap;
        }
        .btn-login:hover { color: var(--accent-cyan); border-color: var(--accent-cyan); }
        .btn-signup {
            padding: 8px 18px;
            border-radius: 6px;
            font-weight: 700;
            font-size: 14px;
            color: #fff;
            background: linear-gradient(135deg, var(--accent-blue), #0057e6);
            box-shadow: 0 4px 12px rgba(0,82,255,0.35);
            transition: all 0.2s ease;
            white-space: nowrap;
        }
        .btn-signup:hover {
            color: #fff;
            box-shadow: 0 6px 20px rgba(0,82,255,0.55);
            transform: translateY(-1px);
        }
        .navbar-toggler { border-color: rgba(0,240,255,0.3); }
        .navbar-toggler:focus { box-shadow: 0 0 0 3px rgba(0,240,255,0.2); }

        /* ---------- ARTICLE LAYOUT ---------- */
        .article-page { padding: var(--spacing-7) 0 var(--spacing-8); background: var(--primary-deep); }
        .article-breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: var(--text-muted);
            margin-bottom: var(--spacing-4);
            flex-wrap: wrap;
        }
        .article-breadcrumb a { color: var(--text-silver); }
        .article-breadcrumb a:hover { color: var(--accent-cyan); }
        .article-breadcrumb i { font-size: 10px; color: var(--text-muted); }
        .article-header { margin-bottom: var(--spacing-5); }
        .article-category-tag {
            display: inline-block;
            padding: 6px 14px;
            border-radius: 20px;
            font-size: 12px;
            font-weight: 700;
            letter-spacing: 0.04em;
            text-transform: uppercase;
            color: var(--accent-cyan);
            background: rgba(0,240,255,0.08);
            border: 1px solid rgba(0,240,255,0.25);
            margin-bottom: var(--spacing-3);
        }
        .article-header h1 {
            font-size: clamp(1.9rem, 4.5vw, 3rem);
            font-weight: 800;
            line-height: 1.25;
            color: var(--text-white);
            margin-bottom: var(--spacing-3);
            letter-spacing: -0.02em;
        }
        .article-meta {
            display: flex;
            align-items: center;
            gap: 18px;
            flex-wrap: wrap;
            color: var(--text-muted);
            font-size: 13px;
            padding-bottom: var(--spacing-4);
            border-bottom: 1px solid var(--border-dark);
        }
        .article-meta i { margin-right: 5px; color: var(--accent-cyan); }
        .article-body-wrapper {
            display: grid;
            grid-template-columns: 1fr 320px;
            gap: 48px;
            align-items: start;
        }
        .article-main-content {
            background: var(--primary-navy);
            border: 1px solid var(--border-dark);
            border-radius: var(--radius-lg);
            padding: var(--spacing-6);
            box-shadow: var(--shadow-card);
            position: relative;
            overflow: hidden;
        }
        .article-main-content::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 4px;
            height: 100%;
            background: linear-gradient(180deg, var(--accent-blue), var(--accent-cyan));
        }
        .article-main-content h2 {
            font-size: 1.55rem;
            font-weight: 700;
            margin-top: var(--spacing-5);
            margin-bottom: var(--spacing-3);
            color: var(--text-white);
            padding-left: 14px;
            border-left: 3px solid var(--accent-cyan);
            line-height: 1.35;
        }
        .article-main-content h3 {
            font-size: 1.25rem;
            font-weight: 700;
            margin-top: var(--spacing-4);
            margin-bottom: var(--spacing-2);
            color: var(--text-white);
        }
        .article-main-content p {
            color: var(--text-silver);
            margin-bottom: var(--spacing-3);
            font-size: 16px;
            line-height: 1.7;
        }
        .article-main-content ul, .article-main-content ol {
            color: var(--text-silver);
            margin-bottom: var(--spacing-3);
            padding-left: 24px;
        }
        .article-main-content li { margin-bottom: 10px; line-height: 1.65; }
        .article-main-content blockquote {
            margin: var(--spacing-4) 0;
            padding: var(--spacing-3) var(--spacing-4);
            background: rgba(0,240,255,0.05);
            border-left: 4px solid var(--accent-cyan);
            border-radius: 0 var(--radius-md) var(--radius-md) 0;
            color: var(--text-white);
            font-style: italic;
        }
        .article-main-content table {
            width: 100%;
            border-collapse: collapse;
            margin: var(--spacing-4) 0;
            background: rgba(255,255,255,0.02);
            border-radius: var(--radius-md);
            overflow: hidden;
        }
        .article-main-content table th,
        .article-main-content table td {
            padding: 12px 16px;
            text-align: left;
            border-bottom: 1px solid var(--border-dark);
            color: var(--text-silver);
            font-size: 14px;
        }
        .article-main-content table th {
            background: rgba(0,240,255,0.08);
            color: var(--accent-cyan);
            font-weight: 700;
            text-transform: uppercase;
            font-size: 12px;
            letter-spacing: 0.05em;
        }
        .article-main-content img {
            border-radius: var(--radius-md);
            margin: var(--spacing-4) 0;
            border: 1px solid var(--border-dark);
        }
        .article-main-content a {
            color: var(--accent-cyan);
            font-weight: 500;
        }
        .article-main-content a:hover { text-decoration: underline; }
        .article-not-found {
            text-align: center;
            padding: var(--spacing-8) var(--spacing-4);
            color: var(--text-muted);
        }
        .article-not-found i { font-size: 48px; margin-bottom: var(--spacing-3); color: var(--text-muted); }
        .article-not-found h2 { color: var(--text-white); margin-bottom: var(--spacing-2); }
        .btn-back-home {
            display: inline-block;
            margin-top: var(--spacing-3);
            padding: 10px 24px;
            border-radius: 6px;
            background: linear-gradient(135deg, var(--accent-blue), var(--accent-cyan));
            color: #fff;
            font-weight: 700;
            transition: all 0.2s ease;
        }
        .btn-back-home:hover { color: #fff; box-shadow: var(--shadow-hover); transform: translateY(-2px); }

        /* ---------- ARTICLE SIDEBAR ---------- */
        .article-sidebar { position: sticky; top: 100px; display: flex; flex-direction: column; gap: var(--spacing-4); }
        .sidebar-card {
            background: var(--primary-navy);
            border: 1px solid var(--border-dark);
            border-radius: var(--radius-lg);
            padding: var(--spacing-4);
            box-shadow: var(--shadow-card);
        }
        .sidebar-card h4 {
            font-size: 16px;
            font-weight: 700;
            color: var(--text-white);
            margin-bottom: var(--spacing-3);
            padding-bottom: 10px;
            border-bottom: 1px solid var(--border-dark);
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .sidebar-card h4 i { color: var(--accent-cyan); }
        .sidebar-list { list-style: none; padding: 0; margin: 0; }
        .sidebar-list li { margin-bottom: 12px; }
        .sidebar-list li:last-child { margin-bottom: 0; }
        .sidebar-list a {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            color: var(--text-silver);
            font-size: 14px;
            line-height: 1.45;
            transition: color 0.2s ease;
        }
        .sidebar-list a:hover { color: var(--accent-cyan); }
        .sidebar-list i { color: var(--accent-cyan); margin-top: 3px; font-size: 12px; }
        .sidebar-cta-box {
            background: linear-gradient(135deg, rgba(0,82,255,0.15), rgba(0,240,255,0.08));
            border: 1px solid rgba(0,240,255,0.25);
            border-radius: var(--radius-lg);
            padding: var(--spacing-4);
            text-align: center;
        }
        .sidebar-cta-box p { color: var(--text-silver); font-size: 14px; margin-bottom: var(--spacing-3); }
        .sidebar-cta-box .btn-signup { display: block; text-align: center; }

        /* ---------- CTA SECTION ---------- */
        .cta-section {
            margin-top: var(--spacing-7);
            padding: var(--spacing-6);
            background: linear-gradient(135deg, #0A1220, #0D1B2E);
            border: 1px solid var(--border-dark);
            border-radius: var(--radius-lg);
            position: relative;
            overflow: hidden;
        }
        .cta-section::after {
            content: '';
            position: absolute;
            top: -50%;
            right: -20%;
            width: 300px;
            height: 300px;
            background: radial-gradient(circle, rgba(0,240,255,0.12), transparent 70%);
            pointer-events: none;
        }
        .cta-section h2 {
            font-size: 1.6rem;
            font-weight: 800;
            margin-bottom: var(--spacing-2);
            color: var(--text-white);
            position: relative;
            z-index: 1;
        }
        .cta-section p {
            color: var(--text-silver);
            margin-bottom: var(--spacing-4);
            position: relative;
            z-index: 1;
        }
        .cta-buttons { display: flex; gap: 14px; flex-wrap: wrap; position: relative; z-index: 1; }

        /* ---------- FAB ---------- */
        .fab-neon {
            position: fixed;
            left: 16px;
            bottom: 96px;
            z-index: 950;
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: rgba(0,0,0,0.7);
            backdrop-filter: blur(8px);
            border: 2px solid transparent;
            background-clip: padding-box;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--accent-cyan);
            font-size: 22px;
            cursor: pointer;
            box-shadow: 0 0 18px rgba(0,240,255,0.4);
            transition: all 0.25s ease;
            animation: fabPulse 2.4s infinite ease-in-out;
            text-decoration: none;
        }
        .fab-neon:hover {
            color: #fff;
            box-shadow: 0 0 30px rgba(0,240,255,0.7);
            transform: scale(1.08);
        }
        .fab-neon:active { transform: scale(0.95); }
        @keyframes fabPulse {
            0%, 100% { box-shadow: 0 0 14px rgba(0,240,255,0.35); }
            50% { box-shadow: 0 0 26px rgba(0,240,255,0.65); }
        }

        /* ---------- FOOTER ---------- */
        .site-footer {
            background: #05060A;
            border-top: 1px solid var(--border-dark);
            padding: var(--spacing-7) 0 var(--spacing-4);
            margin-top: var(--spacing-7);
        }
        .footer-brand {
            font-size: 18px;
            font-weight: 800;
            color: var(--text-white);
            line-height: 1.3;
            margin-bottom: var(--spacing-2);
        }
        .footer-brand small {
            display: block;
            font-size: 12px;
            font-weight: 500;
            color: var(--accent-cyan);
            letter-spacing: 0.06em;
            text-transform: uppercase;
        }
        .footer-desc {
            color: var(--text-muted);
            font-size: 14px;
            line-height: 1.65;
        }
        .footer-badge {
            display: inline-block;
            padding: 5px 12px;
            border-radius: 20px;
            font-size: 12px;
            font-weight: 600;
            color: var(--accent-cyan);
            background: rgba(0,240,255,0.08);
            border: 1px solid rgba(0,240,255,0.2);
            margin-right: 8px;
        }
        .footer-heading {
            font-size: 15px;
            font-weight: 700;
            color: var(--text-white);
            margin-bottom: var(--spacing-3);
        }
        .footer-links {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .footer-links li { margin-bottom: 10px; }
        .footer-links a {
            color: var(--text-muted);
            font-size: 14px;
            transition: color 0.2s ease;
        }
        .footer-links a:hover { color: var(--accent-cyan); }
        .footer-bottom {
            margin-top: var(--spacing-5);
            padding-top: var(--spacing-4);
            border-top: 1px solid var(--border-dark);
            text-align: center;
        }
        .footer-bottom p {
            color: var(--text-muted);
            font-size: 13px;
        }

        /* ---------- RESPONSIVE ---------- */
        @media (max-width: 992px) {
            .article-body-wrapper { grid-template-columns: 1fr; gap: var(--spacing-5); }
            .article-sidebar { position: static; }
            .navbar-collapse {
                background: var(--primary-navy);
                padding: var(--spacing-3);
                border-radius: var(--radius-md);
                margin-top: 10px;
            }
            .navbar-nav { margin-bottom: 10px !important; }
        }
        @media (max-width: 768px) {
            .container-custom { padding-left: 16px; padding-right: 16px; }
            .article-page { padding: var(--spacing-5) 0 var(--spacing-6); }
            .article-main-content { padding: var(--spacing-4); }
            .article-main-content h2 { font-size: 1.35rem; }
            .article-header h1 { font-size: 1.7rem; }
            .brand-text { font-size: 15px; }
            .navbar-brand { gap: 8px; }
            .brand-icon { width: 36px; height: 36px; font-size: 17px; }
            .btn-login, .btn-signup { padding: 7px 14px; font-size: 13px; }
            .fab-neon { width: 48px; height: 48px; font-size: 19px; bottom: 80px; left: 12px; }
        }
        @media (max-width: 520px) {
            .container-custom { padding-left: 12px; padding-right: 12px; }
            .article-main-content { padding: var(--spacing-3); }
            .article-header h1 { font-size: 1.45rem; }
            .article-meta { gap: 12px; font-size: 12px; }
            .cta-section { padding: var(--spacing-4); }
            .cta-section h2 { font-size: 1.3rem; }
            .footer-brand { font-size: 16px; }
            .navbar-brand .brand-text small { font-size: 10px; }
        }

/* roulang page: category2 */
:root {
            --industrial-bg: #16181c;
            --industrial-panel: #202327;
            --industrial-panel2: #262a2e;
            --metal-border: #3a3f45;
            --metal-light: #4a5057;
            --steel-text: #e6e8eb;
            --muted-steel: #a5acb3;
            --accent-orange: #ff6b35;
            --accent-orange-hover: #e55a2b;
            --accent-cyan: #00c2ff;
            --accent-green: #2ecc71;
            --danger-red: #e74c3c;
            --gold-chip: #d4a017;
            --shadow-deep: 0 12px 30px rgba(0, 0, 0, 0.45);
            --shadow-card: 0 6px 18px rgba(0, 0, 0, 0.25);
            --radius-sm: 4px;
            --radius-md: 8px;
            --radius-lg: 12px;
            --transition: 0.22s ease;
            --font-body: 'Segoe UI', 'Inter', system-ui, -apple-system, 'Roboto', sans-serif;
        }
        * { box-sizing: border-box; }
        body {
            font-family: var(--font-body);
            background-color: var(--industrial-bg);
            color: var(--steel-text);
            line-height: 1.6;
            margin: 0;
            overflow-x: hidden;
        }
        a { text-decoration: none; color: inherit; }
        img { max-width: 100%; display: block; }
        .container-custom {
            width: min(1200px, 100%);
            margin: 0 auto;
            padding: 0 24px;
        }
        /* Header / Nav */
        .site-header {
            background: rgba(18, 20, 23, 0.92);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--metal-border);
            position: sticky;
            top: 0;
            z-index: 1050;
            box-shadow: 0 4px 12px rgba(0,0,0,0.3);
        }
        .navbar { padding: 14px 0; }
        .navbar-brand {
            display: flex;
            align-items: center;
            gap: 12px;
            font-weight: 700;
            font-size: 1.15rem;
            color: #fff;
            letter-spacing: -0.3px;
        }
        .brand-icon {
            width: 42px;
            height: 42px;
            background: linear-gradient(145deg, #2b2f33, #1b1e21);
            border: 1px solid var(--metal-border);
            border-radius: var(--radius-md);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--accent-orange);
            font-size: 1.4rem;
            box-shadow: 0 2px 8px rgba(0,0,0,0.4);
        }
        .brand-text {
            display: flex;
            flex-direction: column;
            line-height: 1.15;
        }
        .brand-text small {
            font-weight: 400;
            font-size: 0.72rem;
            color: var(--muted-steel);
            letter-spacing: 0.2px;
        }
        .navbar-nav .nav-link {
            color: var(--muted-steel);
            font-weight: 500;
            font-size: 0.92rem;
            padding: 8px 14px !important;
            border-radius: var(--radius-sm);
            transition: var(--transition);
            margin: 0 2px;
        }
        .navbar-nav .nav-link:hover {
            color: #fff;
            background: rgba(255,255,255,0.05);
        }
        .navbar-nav .nav-link.active {
            color: var(--accent-orange);
            background: rgba(255,107,53,0.08);
            font-weight: 600;
        }
        .btn-login, .btn-signup {
            padding: 8px 18px;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 0.88rem;
            transition: var(--transition);
            border: 1px solid transparent;
        }
        .btn-login {
            color: var(--steel-text);
            border-color: var(--metal-border);
            background: transparent;
        }
        .btn-login:hover {
            background: rgba(255,255,255,0.05);
            border-color: var(--metal-light);
            color: #fff;
        }
        .btn-signup {
            background: var(--accent-orange);
            color: #1a1c1f;
            border-color: var(--accent-orange);
        }
        .btn-signup:hover {
            background: var(--accent-orange-hover);
            border-color: var(--accent-orange-hover);
            transform: translateY(-1px);
        }
        .navbar-toggler {
            border-color: var(--metal-border);
            color: var(--steel-text);
        }
        .navbar-toggler:focus { box-shadow: 0 0 0 2px rgba(255,107,53,0.4); }
        @media (max-width: 991px) {
            .navbar-nav { padding-top: 12px; gap: 2px; }
            .navbar-nav .nav-link { padding: 10px 12px !important; }
            .d-flex.align-items-center.gap-2 { margin-top: 10px; }
        }
        /* Hero Bento */
        .hero-bento {
            padding: 70px 0 40px;
            background: radial-gradient(ellipse at 20% 30%, #1e2125 0%, #14161a 70%);
            border-bottom: 1px solid var(--metal-border);
        }
        .bento-grid {
            display: grid;
            grid-template-columns: 1.7fr 1fr 1fr;
            grid-template-rows: auto auto;
            gap: 18px;
        }
        .bento-main {
            grid-row: span 2;
            background: linear-gradient(145deg, #262a2e, #1b1e22);
            border: 1px solid var(--metal-border);
            border-radius: var(--radius-lg);
            padding: 32px 30px;
            display: flex;
            flex-direction: column;
            justify-content: space-between;
            box-shadow: var(--shadow-deep);
            position: relative;
            overflow: hidden;
        }
        .bento-main::after {
            content: '';
            position: absolute;
            top: -60px;
            right: -40px;
            width: 200px;
            height: 200px;
            background: rgba(255,107,53,0.07);
            border-radius: 50%;
            pointer-events: none;
        }
        .bento-main h1 {
            font-size: 2.4rem;
            font-weight: 800;
            line-height: 1.25;
            margin-bottom: 16px;
            color: #fff;
            letter-spacing: -0.5px;
        }
        .bento-main h1 .highlight {
            color: var(--accent-orange);
        }
        .bento-main p.lead {
            color: var(--muted-steel);
            font-size: 1.05rem;
            max-width: 560px;
            margin-bottom: 24px;
        }
        .bento-cta-row {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            align-items: center;
        }
        .btn-primary-cta {
            background: var(--accent-orange);
            color: #1a1c1f;
            font-weight: 700;
            padding: 12px 28px;
            border-radius: var(--radius-sm);
            border: none;
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }
        .btn-primary-cta:hover {
            background: var(--accent-orange-hover);
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(255,107,53,0.25);
        }
        .btn-ghost-cta {
            color: var(--steel-text);
            border: 1px solid var(--metal-border);
            padding: 12px 24px;
            border-radius: var(--radius-sm);
            font-weight: 600;
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }
        .btn-ghost-cta:hover {
            background: rgba(255,255,255,0.05);
            border-color: var(--metal-light);
        }
        .bento-small {
            background: var(--industrial-panel);
            border: 1px solid var(--metal-border);
            border-radius: var(--radius-md);
            padding: 22px 20px;
            display: flex;
            flex-direction: column;
            justify-content: center;
            box-shadow: var(--shadow-card);
            transition: var(--transition);
        }
        .bento-small:hover {
            border-color: var(--metal-light);
            transform: translateY(-2px);
        }
        .bento-small .bento-icon {
            font-size: 1.6rem;
            color: var(--accent-cyan);
            margin-bottom: 10px;
        }
        .bento-small h3 {
            font-size: 1.05rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 6px;
        }
        .bento-small p {
            font-size: 0.85rem;
            color: var(--muted-steel);
            margin: 0;
        }
        .bento-cta-bar {
            grid-column: 2 / 4;
            background: #1a1c20;
            border: 1px solid var(--metal-border);
            border-radius: var(--radius-md);
            padding: 18px 22px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            box-shadow: var(--shadow-card);
        }
        .bento-cta-bar .cta-text {
            font-weight: 600;
            color: var(--steel-text);
            font-size: 0.95rem;
        }
        .bento-cta-bar .cta-text i {
            color: var(--accent-green);
            margin-right: 6px;
        }
        @media (max-width: 991px) {
            .bento-grid {
                grid-template-columns: 1fr 1fr;
                grid-template-rows: auto;
            }
            .bento-main {
                grid-column: 1 / 3;
                grid-row: auto;
            }
            .bento-cta-bar {
                grid-column: 1 / 3;
            }
        }
        @media (max-width: 575px) {
            .bento-grid {
                grid-template-columns: 1fr;
            }
            .bento-main, .bento-cta-bar {
                grid-column: 1;
            }
            .bento-main h1 { font-size: 1.8rem; }
        }
        /* Section generic */
        .section-block {
            padding: 56px 0;
        }
        .section-heading {
            font-size: 1.7rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 12px;
            letter-spacing: -0.3px;
        }
        .section-subheading {
            color: var(--muted-steel);
            font-size: 1rem;
            max-width: 680px;
            margin-bottom: 32px;
        }
        /* Stats bars */
        .metric-strip {
            display: flex;
            flex-wrap: wrap;
            gap: 18px;
            margin: 28px 0 36px;
        }
        .metric-item {
            background: var(--industrial-panel);
            border-left: 4px solid var(--accent-orange);
            padding: 16px 20px;
            border-radius: var(--radius-sm);
            flex: 1 1 180px;
            box-shadow: var(--shadow-card);
        }
        .metric-item .metric-value {
            font-size: 1.8rem;
            font-weight: 800;
            color: #fff;
            line-height: 1.1;
        }
        .metric-item .metric-label {
            font-size: 0.8rem;
            text-transform: uppercase;
            letter-spacing: 0.4px;
            color: var(--muted-steel);
        }
        /* Cards */
        .card-industrial {
            background: var(--industrial-panel);
            border: 1px solid var(--metal-border);
            border-radius: var(--radius-md);
            padding: 22px;
            box-shadow: var(--shadow-card);
            transition: var(--transition);
            height: 100%;
        }
        .card-industrial:hover {
            border-color: var(--metal-light);
            transform: translateY(-3px);
        }
        .card-industrial .card-icon {
            font-size: 1.5rem;
            color: var(--accent-orange);
            margin-bottom: 12px;
        }
        .card-industrial h4 {
            font-size: 1.1rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 8px;
        }
        .card-industrial p {
            font-size: 0.9rem;
            color: var(--muted-steel);
            margin: 0;
        }
        /* Process / Steps */
        .process-list {
            list-style: none;
            padding: 0;
            margin: 0;
            display: flex;
            flex-direction: column;
            gap: 14px;
        }
        .process-list li {
            display: flex;
            align-items: flex-start;
            gap: 16px;
            background: var(--industrial-panel);
            border: 1px solid var(--metal-border);
            border-radius: var(--radius-md);
            padding: 18px 20px;
            box-shadow: var(--shadow-card);
        }
        .process-step-num {
            width: 36px;
            height: 36px;
            background: var(--accent-orange);
            color: #1a1c1f;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
            font-size: 1rem;
            flex-shrink: 0;
        }
        .process-step-content h5 {
            font-weight: 700;
            color: #fff;
            margin-bottom: 4px;
        }
        .process-step-content p {
            color: var(--muted-steel);
            margin: 0;
            font-size: 0.9rem;
        }
        /* FAQ */
        .accordion-item {
            background: var(--industrial-panel);
            border: 1px solid var(--metal-border);
            border-radius: var(--radius-md) !important;
            margin-bottom: 10px;
            overflow: hidden;
        }
        .accordion-button {
            background: transparent;
            color: #fff;
            font-weight: 600;
            padding: 18px 20px;
            box-shadow: none;
            border: none;
        }
        .accordion-button:not(.collapsed) {
            background: rgba(255,107,53,0.06);
            color: var(--accent-orange);
            box-shadow: none;
        }
        .accordion-button:focus {
            box-shadow: none;
            border-color: transparent;
        }
        .accordion-button::after {
            filter: invert(0.8);
        }
        .accordion-body {
            color: var(--muted-steel);
            padding: 0 20px 18px;
        }
        /* CTA */
        .cta-panel {
            background: linear-gradient(145deg, #2a2d31, #1b1e22);
            border: 1px solid var(--metal-border);
            border-radius: var(--radius-lg);
            padding: 40px 36px;
            box-shadow: var(--shadow-deep);
        }
        .cta-panel h2 {
            color: #fff;
            font-weight: 800;
            font-size: 1.8rem;
        }
        .cta-panel p {
            color: var(--muted-steel);
            max-width: 600px;
        }
        /* Footer */
        .site-footer {
            background: #111316;
            border-top: 1px solid var(--metal-border);
            padding: 48px 0 20px;
            color: var(--muted-steel);
        }
        .footer-brand {
            font-weight: 700;
            font-size: 1.2rem;
            color: #fff;
            display: flex;
            flex-direction: column;
            line-height: 1.3;
        }
        .footer-brand small {
            font-weight: 400;
            font-size: 0.8rem;
            color: var(--muted-steel);
        }
        .footer-desc {
            font-size: 0.9rem;
            margin-top: 12px;
            max-width: 320px;
        }
        .footer-badge {
            background: var(--industrial-panel);
            border: 1px solid var(--metal-border);
            padding: 6px 12px;
            border-radius: 20px;
            font-size: 0.75rem;
            display: inline-flex;
            align-items: center;
            margin-right: 8px;
            margin-bottom: 6px;
            color: var(--steel-text);
        }
        .footer-heading {
            font-size: 0.95rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 14px;
        }
        .footer-links {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .footer-links li { margin-bottom: 8px; }
        .footer-links a {
            color: var(--muted-steel);
            font-size: 0.88rem;
            transition: var(--transition);
        }
        .footer-links a:hover { color: var(--accent-orange); }
        .footer-bottom {
            border-top: 1px solid var(--metal-border);
            margin-top: 32px;
            padding-top: 18px;
            font-size: 0.8rem;
            color: var(--muted-steel);
        }
        /* FAB */
        .fab-floating {
            position: fixed;
            left: 16px;
            bottom: 96px;
            z-index: 1000;
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: linear-gradient(145deg, #2b2f33, #1a1c1f);
            border: 2px solid var(--accent-cyan);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--accent-cyan);
            font-size: 1.4rem;
            box-shadow: 0 0 18px rgba(0,194,255,0.35), 0 6px 14px rgba(0,0,0,0.5);
            transition: var(--transition);
            cursor: pointer;
            opacity: 0.75;
        }
        .fab-floating:hover {
            opacity: 1;
            transform: scale(1.08);
            box-shadow: 0 0 24px rgba(0,194,255,0.55);
        }
        @media (max-width: 575px) {
            .fab-floating { left: 12px; bottom: 80px; width: 50px; height: 50px; font-size: 1.2rem; }
        }

/* roulang page: category3 */
:root {
            --bg-deep: #08090F;
            --bg-navy: #0D111E;
            --bg-card: #111827;
            --accent-blue: #0052FF;
            --accent-cyan: #00F0FF;
            --text-white: #FFFFFF;
            --text-silver: #CBD5E1;
            --text-muted: #94A3B8;
            --border-color: #1E293B;
            --radius-sm: 4px;
            --radius-md: 8px;
            --radius-lg: 12px;
            --radius-xl: 20px;
            --shadow-neon: 0 0 15px rgba(0, 240, 255, 0.5);
            --shadow-blue: 0 0 15px rgba(0, 82, 255, 0.4);
            --transition: all 0.3s ease;
        }
        
        * {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        
        body {
            background-color: var(--bg-deep);
            color: var(--text-white);
            font-family: 'Inter', 'Segoe UI', -apple-system, BlinkMacSystemFont, sans-serif;
            line-height: 1.65;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }
        
        a {
            text-decoration: none;
            transition: var(--transition);
            color: var(--accent-cyan);
        }
        
        a:hover {
            color: var(--text-white);
        }
        
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        
        .container-custom {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding-left: 24px;
            padding-right: 24px;
        }
        
        /* Header & Navigation */
        .site-header {
            background: rgba(8, 9, 15, 0.92);
            backdrop-filter: blur(20px);
            border-bottom: 1px solid rgba(30, 41, 59, 0.8);
            position: sticky;
            top: 0;
            z-index: 1050;
            padding: 12px 0;
        }
        
        .navbar {
            padding: 0;
        }
        
        .navbar-brand {
            display: flex;
            align-items: center;
            gap: 12px;
            color: var(--text-white);
            font-weight: 700;
            font-size: 1.1rem;
        }
        
        .navbar-brand:hover {
            color: var(--accent-cyan);
        }
        
        .brand-icon {
            width: 42px;
            height: 42px;
            background: linear-gradient(135deg, var(--accent-blue), var(--accent-cyan));
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
            color: #fff;
            box-shadow: var(--shadow-blue);
        }
        
        .brand-text {
            display: flex;
            flex-direction: column;
            line-height: 1.2;
        }
        
        .brand-text small {
            font-size: 0.65rem;
            font-weight: 400;
            color: var(--accent-cyan);
            letter-spacing: 0.5px;
        }
        
        .navbar-nav .nav-link {
            color: var(--text-silver);
            font-weight: 500;
            font-size: 0.9rem;
            padding: 8px 16px;
            margin: 0 4px;
            border-radius: 6px;
            position: relative;
        }
        
        .navbar-nav .nav-link:hover,
        .navbar-nav .nav-link.active {
            color: var(--accent-cyan);
            background: rgba(0, 240, 255, 0.08);
        }
        
        .navbar-nav .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: 4px;
            left: 16px;
            right: 16px;
            height: 2px;
            background: var(--accent-cyan);
            border-radius: 2px;
        }
        
        .btn-login {
            color: var(--text-white);
            font-weight: 600;
            font-size: 0.85rem;
            padding: 8px 16px;
            border-radius: 6px;
            border: 1px solid rgba(148, 163, 184, 0.4);
        }
        
        .btn-login:hover {
            border-color: var(--accent-cyan);
            color: var(--accent-cyan);
        }
        
        .btn-signup {
            background: linear-gradient(135deg, var(--accent-blue), var(--accent-cyan));
            color: #fff;
            font-weight: 600;
            font-size: 0.85rem;
            padding: 8px 20px;
            border-radius: 6px;
            box-shadow: var(--shadow-blue);
        }
        
        .btn-signup:hover {
            transform: translateY(-2px);
            box-shadow: 0 0 25px rgba(0, 240, 255, 0.7);
            color: #fff;
        }
        
        .navbar-toggler {
            border: 1px solid rgba(148, 163, 184, 0.3);
        }
        
        .navbar-toggler-icon {
            background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba%28203, 213, 225, 1%29' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
        }
        
        /* Hero Section */
        .hero-section {
            position: relative;
            padding: 80px 0 100px;
            background: linear-gradient(135deg, rgba(0, 82, 255, 0.08) 0%, rgba(8, 9, 15, 0.95) 40%, rgba(13, 17, 30, 0.98) 100%);
            border-bottom: 1px solid rgba(30, 41, 59, 0.6);
            overflow: hidden;
        }
        
        .hero-section::before {
            content: '';
            position: absolute;
            top: -50%;
            right: -10%;
            width: 600px;
            height: 600px;
            background: radial-gradient(circle, rgba(0, 240, 255, 0.06) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
        
        .hero-section::after {
            content: '';
            position: absolute;
            bottom: -30%;
            left: -5%;
            width: 500px;
            height: 500px;
            background: radial-gradient(circle, rgba(0, 82, 255, 0.05) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
        
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(0, 240, 255, 0.12);
            border: 1px solid rgba(0, 240, 255, 0.3);
            color: var(--accent-cyan);
            padding: 6px 16px;
            border-radius: 20px;
            font-size: 0.8rem;
            font-weight: 500;
            letter-spacing: 0.5px;
            margin-bottom: 24px;
        }
        
        .hero-title {
            font-size: 2.8rem;
            font-weight: 800;
            line-height: 1.2;
            color: var(--text-white);
            margin-bottom: 20px;
            letter-spacing: -0.5px;
        }
        
        .hero-title .highlight {
            background: linear-gradient(135deg, var(--accent-blue), var(--accent-cyan));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        
        .hero-subtitle {
            font-size: 1.1rem;
            color: var(--text-silver);
            line-height: 1.7;
            margin-bottom: 32px;
            max-width: 600px;
        }
        
        .hero-actions {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
        }
        
        .btn-primary-hero {
            background: linear-gradient(135deg, var(--accent-blue), var(--accent-cyan));
            color: #fff;
            font-weight: 600;
            font-size: 0.95rem;
            padding: 14px 32px;
            border-radius: 8px;
            border: none;
            box-shadow: var(--shadow-blue);
            transition: var(--transition);
        }
        
        .btn-primary-hero:hover {
            transform: translateY(-3px);
            box-shadow: 0 0 35px rgba(0, 240, 255, 0.8);
            color: #fff;
        }
        
        .btn-outline-hero {
            background: transparent;
            color: var(--text-white);
            font-weight: 600;
            font-size: 0.95rem;
            padding: 14px 32px;
            border-radius: 8px;
            border: 1px solid rgba(148, 163, 184, 0.5);
            transition: var(--transition);
        }
        
        .btn-outline-hero:hover {
            border-color: var(--accent-cyan);
            color: var(--accent-cyan);
            background: rgba(0, 240, 255, 0.05);
        }
        
        /* Data Panel */
        .data-panel {
            background: rgba(17, 24, 39, 0.8);
            border: 1px solid rgba(30, 41, 59, 0.8);
            border-radius: var(--radius-lg);
            padding: 32px;
            backdrop-filter: blur(10px);
            box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
        }
        
        .data-panel-title {
            font-size: 0.9rem;
            font-weight: 600;
            color: var(--text-muted);
            text-transform: uppercase;
            letter-spacing: 1px;
            margin-bottom: 20px;
        }
        
        .data-item {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 14px 0;
            border-bottom: 1px solid rgba(30, 41, 59, 0.5);
        }
        
        .data-item:last-child {
            border-bottom: none;
        }
        
        .data-item-label {
            font-size: 0.85rem;
            color: var(--text-silver);
            display: flex;
            align-items: center;
            gap: 10px;
        }
        
        .data-item-label i {
            color: var(--accent-cyan);
            font-size: 0.9rem;
        }
        
        .data-item-value {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--accent-cyan);
        }
        
        .data-item-value.green {
            color: #22C55E;
        }
        
        .data-item-value.gold {
            color: #FFD700;
        }
        
        /* Section Styles */
        .section-padding {
            padding: 80px 0;
        }
        
        .section-label {
            display: inline-block;
            font-size: 0.75rem;
            font-weight: 600;
            text-transform: uppercase;
            letter-spacing: 2px;
            color: var(--accent-cyan);
            background: rgba(0, 240, 255, 0.08);
            padding: 6px 16px;
            border-radius: 4px;
            margin-bottom: 16px;
            border: 1px solid rgba(0, 240, 255, 0.2);
        }
        
        .section-title {
            font-size: 2rem;
            font-weight: 700;
            color: var(--text-white);
            margin-bottom: 16px;
            letter-spacing: -0.3px;
        }
        
        .section-desc {
            font-size: 1rem;
            color: var(--text-muted);
            line-height: 1.7;
            max-width: 800px;
            margin-bottom: 40px;
        }
        
        /* Criteria Cards */
        .criteria-card {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 28px;
            height: 100%;
            transition: var(--transition);
            position: relative;
            overflow: hidden;
        }
        
        .criteria-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 4px;
            height: 0;
            background: linear-gradient(180deg, var(--accent-blue), var(--accent-cyan));
            transition: height 0.4s ease;
        }
        
        .criteria-card:hover::before {
            height: 100%;
        }
        
        .criteria-card:hover {
            border-color: rgba(0, 240, 255, 0.4);
            transform: translateY(-4px);
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.4);
        }
        
        .criteria-icon {
            width: 50px;
            height: 50px;
            background: rgba(0, 240, 255, 0.1);
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.3rem;
            color: var(--accent-cyan);
            margin-bottom: 16px;
        }
        
        .criteria-card h3 {
            font-size: 1.15rem;
            font-weight: 600;
            color: var(--text-white);
            margin-bottom: 12px;
        }
        
        .criteria-card p {
            font-size: 0.9rem;
            color: var(--text-muted);
            line-height: 1.6;
            margin-bottom: 0;
        }
        
        /* Trust Badges */
        .trust-badges {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
            margin-top: 40px;
        }
        
        .trust-badge {
            display: flex;
            align-items: center;
            gap: 10px;
            background:rgba(0, 240, 255, 0.05);
            border: 1px solid rgba(30, 41, 59, 0.6);
            padding: 10px 20px;
            border-radius: 20px;
            font-size: 0.8rem;
            color: var(--text-silver);
        }
        
        .trust-badge i {
            color: var(--accent-cyan);
            font-size: 0.85rem;
        }
        
        /* Process Steps */
        .process-flow {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
            gap: 24px;
            margin-top: 20px;
        }
        
        .process-step {
            background: rgba(17, 24, 39, 0.5);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 28px 24px;
            position: relative;
            transition: var(--transition);
        }
        
        .process-step:hover {
            border-color: rgba(0, 240, 255, 0.3);
            box-shadow: 0 8px 25px rgba(0, 0, 0, 0.3);
        }
        
        .step-number {
            font-size: 2.2rem;
            font-weight: 800;
            background: linear-gradient(135deg, var(--accent-blue), var(--accent-cyan));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            margin-bottom: 12px;
            display: block;
        }
        
        .process-step h4 {
            font-size: 1rem;
            font-weight: 600;
            color: var(--text-white);
            margin-bottom: 8px;
        }
        
        .process-step p {
            font-size: 0.85rem;
            color: var(--text-muted);
            line-height: 1.6;
            margin-bottom: 0;
        }
        
        /* Warning Section */
        .warning-section {
            background: linear-gradient(135deg, rgba(255, 69, 0, 0.08) 0%, rgba(8, 9, 15, 0.95) 100%);
            border: 1px solid rgba(255, 69, 0, 0.25);
            border-radius: var(--radius-lg);
            padding: 40px;
            position: relative;
            overflow: hidden;
        }
        
        .warning-section::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 4px;
            height: 100%;
            background: #FF4500;
        }
        
        .warning-icon {
            width: 56px;
            height: 56px;
            background: rgba(255, 69, 0, 0.15);
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            color: #FF4500;
            margin-bottom: 16px;
        }
        
        .warning-section h3 {
            font-size: 1.3rem;
            font-weight: 700;
            color: #FF4500;
            margin-bottom: 12px;
        }
        
        .warning-section p {
            font-size: 0.95rem;
            color: var(--text-silver);
            line-height: 1.7;
            margin-bottom: 0;
        }
        
        .warning-list {
            list-style: none;
            margin-top: 20px;
            padding: 0;
        }
        
        .warning-list li {
            display: flex;
            align-items: flex-start;
            gap: 12px;
            padding: 10px 0;
            font-size: 0.9rem;
            color: var(--text-silver);
        }
        
        .warning-list li i {
            color: #FF4500;
            margin-top: 4px;
        }
        
        /* FAQ */
        .faq-section {
            background: rgba(13, 17, 30, 0.6);
            border-top: 1px solid rgba(30, 41, 59, 0.5);
            border-bottom: 1px solid rgba(30, 41, 59, 0.5);
        }
        
        .accordion-item {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md) !important;
            margin-bottom: 16px;
            overflow: hidden;
        }
        
        .accordion-button {
            background: var(--bg-card);
            color: var(--text-white);
            font-weight: 600;
            font-size: 0.95rem;
            padding: 20px 24px;
        }
        
        .accordion-button:not(.collapsed) {
            background: rgba(0, 240, 255, 0.08);
            color: var(--accent-cyan);
            box-shadow: none;
        }
        
        .accordion-button:focus {
            box-shadow: none;
            border-color: rgba(0, 240, 255, 0.3);
        }
        
        .accordion-button::after {
            filter: brightness(0) invert(1);
        }
        
        .accordion-body {
            background: var(--bg-card);
            color: var(--text-muted);
            font-size: 0.9rem;
            line-height: 1.7;
            padding: 20px 24px;
        }
        
        /* CTA Section */
        .cta-section {
            background: linear-gradient(135deg, var(--bg-navy) 0%, var(--bg-deep) 100%);
            border-top: 1px solid rgba(30, 41, 59, 0.5);
            padding: 80px 0;
            position: relative;
            overflow: hidden;
        }
        
        .cta-section::before {
            content: '';
            position: absolute;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
            width: 800px;
            height: 800px;
            background: radial-gradient(circle, rgba(0, 240, 255, 0.05) 0%, transparent 70%);
            pointer-events: none;
        }
        
        .cta-box {
            background: rgba(17, 24, 39, 0.9);
            border: 1px solid rgba(0, 240, 255, 0.25);
            border-radius: var(--radius-xl);
            padding: 56px 40px;
            text-align: center;
            position: relative;
            z-index: 1;
        }
        
        .cta-box h2 {
            font-size: 2rem;
            font-weight: 700;
            color: var(--text-white);
            margin-bottom: 16px;
        }
        
        .cta-box p {
            font-size: 1rem;
            color: var(--text-muted);
            margin-bottom: 32px;
            max-width: 600px;
            margin-left: auto;
            margin-right: auto;
        }
        
        /* Footer */
        .site-footer {
            background: rgba(8, 9, 15, 0.98);
            border-top: 1px solid rgba(30, 41, 59, 0.6);
            padding: 60px 0 30px;
        }
        
        .footer-brand {
            font-size: 1.2rem;
            font-weight: 700;
            color: var(--text-white);
            display: flex;
            flex-direction: column;
            line-height: 1.3;
            margin-bottom: 16px;
        }
        
        .footer-brand small {
            font-size: 0.7rem;
            font-weight: 400;
            color: var(--accent-cyan);
            letter-spacing: 0.5px;
            margin-top: 4px;
        }
        
        .footer-desc {
            font-size: 0.85rem;
            color: var(--text-muted);
            line-height: 1.6;
        }
        
        .footer-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 0.75rem;
            color: var(--text-silver);
            background: rgba(0, 240, 255, 0.08);
            border: 1px solid rgba(0, 240, 255, 0.2);
            padding: 6px 12px;
            border-radius: 4px;
            margin-right: 8px;
        }
        
        .footer-badge i {
            color: var(--accent-cyan);
        }
        
        .footer-heading {
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--text-white);
            text-transform: uppercase;
            letter-spacing: 1px;
            margin-bottom: 20px;
        }
        
        .footer-links {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        
        .footer-links li {
            margin-bottom: 10px;
        }
        
        .footer-links a {
            font-size: 0.85rem;
            color: var(--text-muted);
            transition: var(--transition);
        }
        
        .footer-links a:hover {
            color: var(--accent-cyan);
            padding-left: 4px;
        }
        
        .footer-bottom {
            border-top: 1px solid rgba(30, 41, 59, 0.5);
            padding-top: 24px;
            margin-top: 40px;
            text-align: center;
        }
        
        .footer-bottom p {
            font-size: 0.8rem;
            color: var(--text-muted);
        }
        
        /* FAB */
        .fab-cyber {
            position: fixed;
            left: 16px;
            bottom: 96px;
            z-index: 1050;
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: rgba(8, 9, 15, 0.7);
            backdrop-filter: blur(10px);
            border: 2px solid transparent;
            background-image: linear-gradient(rgba(8, 9, 15, 0.7), rgba(8, 9, 15, 0.7)), linear-gradient(135deg, var(--accent-cyan), var(--accent-blue));
            background-origin: border-box;
            background-clip: padding-box, border-box;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--accent-cyan);
            font-size: 1.3rem;
            cursor: pointer;
            box-shadow: 0 0 15px rgba(0, 240, 255, 0.5);
            transition: var(--transition);
            opacity: 0.6;
            animation: fabFloat 3s ease-in-out infinite;
        }
        
        .fab-cyber:hover {
            opacity: 1;
            transform: scale(1.1);
            box-shadow: 0 0 30px rgba(0, 240, 255, 0.8);
            color: #fff;
        }
        
        .fab-cyber:active {
            transform: scale(0.95);
            box-shadow: 0 0 40px rgba(255, 0, 127, 0.6);
            border-color: #FF007F;
            color: #FF007F;
        }
        
        @keyframes fabFloat {
            0%, 100% {
                transform: translateY(0);
            }
            50% {
                transform: translateY(-8px);
            }
        }
        
        /* Responsive */
        @media (max-width: 1024px) {
            .hero-title {
                font-size: 2.2rem;
            }
            
            .section-title {
                font-size: 1.7rem;
            }
            
            .container-custom {
                padding-left: 16px;
                padding-right: 16px;
            }
        }
        
        @media (max-width: 768px) {
            .hero-section {
                padding: 50px 0 60px;
            }
            
            .hero-title {
                font-size: 1.8rem;
            }
            
            .hero-subtitle {
                font-size: 1rem;
            }
            
            .section-padding {
                padding: 50px 0;
            }
            
            .section-title {
                font-size: 1.4rem;
            }
            
            .data-panel {
                margin-top: 30px;
                padding: 24px;
            }
            
            .warning-section {
                padding: 28px 20px;
            }
            
            .cta-box {
                padding: 40px 24px;
            }
            
            .cta-box h2 {
                font-size: 1.5rem;
            }
            
            .navbar-collapse {
                background: rgba(8, 9, 15, 0.98);
                border: 1px solid rgba(30, 41, 59, 0.6);
                border-radius: 8px;
                padding: 16px;
                margin-top: 12px;
            }
            
            .navbar-nav .nav-link {
                padding: 10px 16px;
                margin: 2px 0;
            }
            
            .d-flex.align-items-center.gap-2 {
                margin-top: 12px;
                padding-top: 12px;
                border-top: 1px solid rgba(30, 41, 59, 0.5);
            }
        }
        
        @media (max-width: 520px) {
            .hero-title {
                font-size: 1.5rem;
            }
            
            .brand-text {
                font-size: 0.85rem;
            }
            
            .brand-icon {
                width: 36px;
                height: 36px;
                font-size: 1.1rem;
            }
            
            .btn-primary-hero,
            .btn-outline-hero {
                padding: 12px 24px;
                font-size: 0.85rem;
                width: 100%;
                text-align: center;
            }
            
            .hero-actions {
                flex-direction: column;
            }
            
            .process-flow {
                grid-template-columns: 1fr;
            }
            
            .fab-cyber {
                width: 48px;
                height: 48px;
                font-size: 1.1rem;
                left: 12px;
                bottom: 80px;
            }
        }