/* roulang page: index */
:root {
      --bg-primary: #051F14;
      --bg-secondary: #0B2E1E;
      --bg-card: #0A2818;
      --gold: #F59E0B;
      --gold-light: #FCD34D;
      --gold-dim: #B45309;
      --red: #DC2626;
      --red-dark: #991B1B;
      --white: #F8FAFC;
      --mint: #D1FAE5;
      --olive: #A3A375;
      --text-body: #E2E8F0;
      --text-muted: #94A3B8;
      --radius-sm: 0.5rem;
      --radius-md: 0.75rem;
      --radius-lg: 1.25rem;
      --shadow-card: 0 4px 24px rgba(0,0,0,0.5);
      --shadow-gold: 0 6px 25px rgba(245,158,11,0.3);
      --font-heading: 'Georgia', 'Times New Roman', serif;
      --font-body: 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif;
    }
    * {
      box-sizing: border-box;
    }
    body {
      margin: 0;
      padding: 0;
      background-color: var(--bg-primary);
      color: var(--text-body);
      font-family: var(--font-body);
      line-height: 1.6;
      -webkit-font-smoothing: antialiased;
    }
    img {
      max-width: 100%;
      height: auto;
      display: block;
    }
    a {
      text-decoration: none;
      color: inherit;
      transition: color 0.2s ease;
    }
    button {
      cursor: pointer;
      font-family: inherit;
    }
    .container {
      max-width: 1200px;
      margin: 0 auto;
      padding-left: 1rem;
      padding-right: 1rem;
    }
    /* Header & Nav */
    .site-header {
      background: rgba(5, 31, 20, 0.92);
      backdrop-filter: blur(20px);
      -webkit-backdrop-filter: blur(20px);
      border-bottom: 1px solid rgba(245, 158, 11, 0.2);
      position: sticky;
      top: 0;
      z-index: 100;
      transition: background 0.3s;
    }
    .header-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      min-height: 64px;
    }
    .logo {
      font-family: var(--font-heading);
      font-size: 1.35rem;
      font-weight: bold;
      background: linear-gradient(135deg, var(--gold-light), var(--gold));
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      background-clip: text;
      white-space: nowrap;
      letter-spacing: 0.5px;
    }
    .main-nav {
      display: flex;
      align-items: center;
      gap: 2rem;
    }
    .main-nav a {
      color: var(--mint);
      font-weight: 500;
      font-size: 0.95rem;
      position: relative;
      padding-bottom: 4px;
      transition: color 0.2s;
    }
    .main-nav a:hover {
      color: var(--gold);
    }
    .main-nav a.active {
      color: var(--gold);
    }
    .main-nav a.active::after {
      content: '';
      position: absolute;
      bottom: -2px;
      left: 0;
      width: 100%;
      height: 2px;
      background: var(--gold);
      border-radius: 2px;
    }
    .header-actions {
      display: flex;
      align-items: center;
      gap: 0.75rem;
    }
    .btn-login {
      background: transparent;
      border: 1px solid var(--gold);
      color: var(--gold);
      padding: 0.4rem 1.2rem;
      border-radius: 2rem;
      font-weight: 600;
      font-size: 0.85rem;
      transition: all 0.25s;
    }
    .btn-login:hover {
      background: rgba(245,158,11,0.1);
      border-color: var(--gold-light);
    }
    .btn-signup {
      background: linear-gradient(135deg, var(--gold), var(--gold-dim));
      color: var(--bg-primary);
      padding: 0.4rem 1.4rem;
      border-radius: 2rem;
      font-weight: 700;
      font-size: 0.85rem;
      border: none;
      box-shadow: 0 4px 14px rgba(245,158,11,0.35);
      transition: all 0.25s;
    }
    .btn-signup:hover {
      transform: translateY(-1px);
      box-shadow: 0 6px 20px rgba(245,158,11,0.5);
    }
    /* Mobile nav */
    .hamburger {
      display: none;
      background: none;
      border: none;
      color: var(--gold);
      font-size: 1.8rem;
      cursor: pointer;
    }
    .mobile-menu {
      display: none;
      flex-direction: column;
      background: var(--bg-secondary);
      border-top: 1px solid rgba(245,158,11,0.3);
      padding: 1rem;
    }
    .mobile-menu a {
      padding: 0.75rem 1rem;
      color: var(--mint);
      font-weight: 500;
      border-bottom: 1px solid rgba(255,255,255,0.05);
    }
    .mobile-menu a:hover {
      color: var(--gold);
    }
    /* Hero */
    .hero {
      background: linear-gradient(180deg, #042213 0%, #0B2E1E 100%);
      padding: 3.5rem 0 4rem;
      position: relative;
      overflow: hidden;
    }
    .hero::before {
      content: '';
      position: absolute;
      inset: 0;
      background: url('/assets/images/backpic/back-4.jpg') center/cover no-repeat;
      opacity: 0.2;
      z-index: 0;
    }
    .hero-content {
      position: relative;
      z-index: 2;
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 2.5rem;
      align-items: center;
    }
    .hero-text h1 {
      font-family: var(--font-heading);
      font-size: clamp(2rem, 5vw, 2.8rem);
      font-weight: 700;
      color: var(--gold-light);
      line-height: 1.3;
      margin-bottom: 1.25rem;
    }
    .hero-text p {
      font-size: 1.1rem;
      color: var(--text-body);
      margin-bottom: 2rem;
      max-width: 520px;
      line-height: 1.6;
    }
    .hero-buttons {
      display: flex;
      flex-wrap: wrap;
      gap: 1rem;
    }
    .btn-primary {
      background: linear-gradient(135deg, var(--gold), var(--gold-dim));
      color: var(--bg-primary);
      font-weight: 800;
      padding: 0.7rem 2rem;
      border-radius: 2.5rem;
      font-size: 1rem;
      box-shadow: 0 6px 20px rgba(245,158,11,0.45);
      transition: all 0.3s;
      border: none;
    }
    .btn-primary:hover {
      transform: translateY(-2px);
      box-shadow: 0 8px 28px rgba(245,158,11,0.6);
    }
    .btn-outline {
      background: transparent;
      border: 2px solid var(--gold);
      color: var(--gold);
      font-weight: 700;
      padding: 0.65rem 2rem;
      border-radius: 2.5rem;
      font-size: 1rem;
      transition: all 0.3s;
    }
    .btn-outline:hover {
      background: rgba(245,158,11,0.08);
    }
    .hero-visual {
      position: relative;
      z-index: 2;
      display: flex;
      justify-content: center;
    }
    .hero-visual img {
      border-radius: var(--radius-lg);
      box-shadow: 0 0 40px rgba(245,158,11,0.2);
      border: 2px solid rgba(245,158,11,0.3);
    }
    /* Section common */
    .section {
      padding: 3.5rem 0;
    }
    .section-dark {
      background: var(--bg-secondary);
    }
    .section-title {
      font-family: var(--font-heading);
      font-size: clamp(1.5rem, 3vw, 1.9rem);
      font-weight: bold;
      color: var(--gold-light);
      margin-bottom: 0.75rem;
    }
    .section-desc {
      color: var(--text-muted);
      max-width: 680px;
      line-height: 1.65;
      margin-bottom: 2.5rem;
    }
    /* Search */
    .search-bar {
      display: flex;
      max-width: 520px;
      background: var(--bg-card);
      border-radius: 3rem;
      border: 1px solid rgba(245,158,11,0.25);
      overflow: hidden;
    }
    .search-bar input {
      flex: 1;
      background: transparent;
      border: none;
      padding: 0.75rem 1.25rem;
      color: var(--white);
      font-size: 0.95rem;
    }
    .search-bar button {
      background: var(--gold);
      border: none;
      color: var(--bg-primary);
      padding: 0 1.4rem;
      font-weight: bold;
      font-size: 0.95rem;
    }
    /* Category matrix */
    .cat-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 1.5rem;
    }
    .cat-card {
      background: var(--bg-card);
      border: 1px solid rgba(245,158,11,0.15);
      border-radius: var(--radius-md);
      padding: 1.8rem 1.2rem;
      text-align: left;
      transition: all 0.3s;
      display: flex;
      flex-direction: column;
      align-items: flex-start;
      gap: 0.8rem;
    }
    .cat-card:hover {
      border-color: var(--gold);
      box-shadow: 0 8px 28px rgba(0,0,0,0.6);
      transform: translateY(-3px);
    }
    .cat-icon {
      font-size: 2.2rem;
      color: var(--gold);
    }
    .cat-card h3 {
      font-size: 1.2rem;
      font-weight: 700;
      color: var(--white);
    }
    .cat-card p {
      font-size: 0.9rem;
      color: var(--text-muted);
      line-height: 1.5;
    }
    /* Featured list */
    .featured-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 1.8rem;
    }
    .game-card {
      background: var(--bg-card);
      border-radius: var(--radius-md);
      overflow: hidden;
      border: 1px solid rgba(245,158,11,0.1);
      transition: all 0.3s;
    }
    .game-card:hover {
      box-shadow: 0 12px 32px rgba(245,158,11,0.15);
      border-color: var(--gold);
    }
    .game-card img {
      height: 180px;
      object-fit: cover;
      width: 100%;
    }
    .game-card-body {
      padding: 1.2rem;
    }
    .game-card-body h4 {
      font-weight: 700;
      color: var(--white);
      margin-bottom: 0.35rem;
    }
    .game-card-body p {
      font-size: 0.85rem;
      color: var(--text-muted);
    }
    .badge-hot {
      background: var(--red);
      color: white;
      padding: 0.2rem 0.7rem;
      border-radius: 1rem;
      font-size: 0.7rem;
      font-weight: 800;
      position: absolute;
      top: 12px;
      right: 12px;
      z-index: 5;
    }
    /* Update list */
    .update-list {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 1.5rem;
    }
    .update-item {
      background: var(--bg-card);
      border-left: 4px solid var(--gold);
      padding: 1.2rem;
      border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
    }
    .update-item h4 {
      font-weight: 600;
      color: var(--gold-light);
    }
    .update-item p {
      font-size: 0.9rem;
      color: var(--text-muted);
    }
    /* Ranking */
    .rank-table {
      background: var(--bg-secondary);
      border-radius: var(--radius-md);
      padding: 1.5rem;
      border: 1px solid rgba(245,158,11,0.15);
    }
    .rank-row {
      display: flex;
      justify-content: space-between;
      padding: 0.8rem 0;
      border-bottom: 1px solid rgba(255,255,255,0.05);
    }
    .rank-pos {
      color: var(--gold);
      font-weight: bold;
    }
    /* Resource center */
    .resource-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 1.5rem;
    }
    .resource-item {
      background: var(--bg-card);
      border-radius: var(--radius-sm);
      padding: 1.2rem;
      transition: 0.2s;
    }
    .resource-item:hover {
      background: #0E3322;
    }
    /* CMS News */
    .news-layout {
      display: grid;
      grid-template-columns: 2fr 1fr;
      gap: 2rem;
    }
    .news-main .news-card {
      display: flex;
      gap: 1.25rem;
      background: var(--bg-card);
      border-radius: var(--radius-md);
      padding: 1rem;
      margin-bottom: 1rem;
      border: 1px solid rgba(255,255,255,0.03);
      transition: 0.2s;
    }
    .news-card:hover {
      border-color: var(--gold-dim);
    }
    .news-card img {
      width: 120px;
      height: 90px;
      object-fit: cover;
      border-radius: var(--radius-sm);
    }
    .news-card h3 {
      font-size: 1rem;
      font-weight: 600;
      color: var(--white);
    }
    .news-meta {
      font-size: 0.8rem;
      color: var(--text-muted);
    }
    .news-sidebar {
      background: var(--bg-secondary);
      border-radius: var(--radius-md);
      padding: 1.2rem;
      border: 1px solid rgba(245,158,11,0.1);
    }
    /* Footer */
    .site-footer {
      background: #020C08;
      border-top: 3px solid var(--gold);
      padding: 2.5rem 0 1.5rem;
      color: var(--text-muted);
      font-size: 0.9rem;
    }
    .footer-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 2rem;
    }
    .footer-col h4 {
      color: var(--gold);
      margin-bottom: 1rem;
    }
    .footer-col a {
      display: block;
      color: var(--text-muted);
      margin-bottom: 0.5rem;
    }
    .footer-bottom {
      margin-top: 2rem;
      padding-top: 1rem;
      border-top: 1px solid rgba(255,255,255,0.08);
      text-align: center;
      font-size: 0.8rem;
    }
    /* FAB */
    .fab-left {
      position: fixed;
      left: 1rem;
      bottom: 6rem;
      width: 56px;
      height: 56px;
      background: radial-gradient(circle at 30% 30%, #B45309, #7C2D12);
      border: 2px solid var(--gold);
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      color: var(--gold-light);
      font-size: 1.4rem;
      z-index: 90;
      box-shadow: var(--shadow-gold);
      cursor: pointer;
      transition: all 0.3s;
    }
    .fab-left:hover {
      transform: scale(1.1);
      box-shadow: 0 8px 30px rgba(245,158,11,0.55);
    }
    /* Responsive */
    @media (max-width: 1024px) {
      .hero-content { grid-template-columns: 1fr; }
      .cat-grid { grid-template-columns: repeat(2, 1fr); }
      .featured-grid { grid-template-columns: repeat(2, 1fr); }
      .resource-grid { grid-template-columns: repeat(2, 1fr); }
      .news-layout { grid-template-columns: 1fr; }
    }
    @media (max-width: 768px) {
      .main-nav { display: none; }
      .hamburger { display: block; }
      .mobile-menu.active { display: flex; }
      .header-actions .btn-login,
      .header-actions .btn-signup {
        padding: 0.35rem 0.9rem;
        font-size: 0.78rem;
      }
      .cat-grid { grid-template-columns: 1fr; }
      .featured-grid { grid-template-columns: 1fr; }
      .update-list { grid-template-columns: 1fr; }
      .resource-grid { grid-template-columns: 1fr; }
      .footer-grid { grid-template-columns: 1fr; }
    }

/* roulang page: article */
:root {
            --bg-primary: #051F14;
            --bg-secondary: #0B2E1E;
            --bg-card: #0A2818;
            --gold: #F59E0B;
            --gold-light: #FCD34D;
            --gold-dim: #B45309;
            --red: #DC2626;
            --red-dark: #991B1B;
            --white: #F8FAFC;
            --mint: #D1FAE5;
            --olive: #A3A375;
            --text-body: #E2E8F0;
            --text-muted: #94A3B8;
            --radius-sm: 0.5rem;
            --radius-md: 0.75rem;
            --radius-lg: 1.25rem;
            --shadow-card: 0 4px 24px rgba(0,0,0,0.5);
            --shadow-gold: 0 6px 25px rgba(245,158,11,0.3);
            --font-heading: 'Georgia', 'Times New Roman', serif;
            --font-body: 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif;
        }

        * {
            box-sizing: border-box;
        }

        body {
            margin: 0;
            padding: 0;
            background-color: var(--bg-primary);
            color: var(--text-body);
            font-family: var(--font-body);
            line-height: 1.6;
            -webkit-font-smoothing: antialiased;
        }

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

        a {
            text-decoration: none;
            color: inherit;
            transition: color 0.2s ease;
        }

        button {
            cursor: pointer;
            font-family: inherit;
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding-left: 1rem;
            padding-right: 1rem;
        }

        /* Header */
        .site-header {
            background: rgba(5, 31, 20, 0.92);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid rgba(245, 158, 11, 0.2);
            position: sticky;
            top: 0;
            z-index: 100;
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            min-height: 64px;
        }

        .logo {
            font-family: var(--font-heading);
            font-size: 1.35rem;
            font-weight: bold;
            background: linear-gradient(135deg, var(--gold-light), var(--gold));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            white-space: nowrap;
            letter-spacing: 0.5px;
        }

        .main-nav {
            display: flex;
            align-items: center;
            gap: 2rem;
        }

        .main-nav a {
            color: var(--mint);
            font-weight: 500;
            font-size: 0.95rem;
            position: relative;
            padding-bottom: 4px;
            transition: color 0.2s;
        }

        .main-nav a:hover {
            color: var(--gold);
        }

        .main-nav a.active {
            color: var(--gold);
        }

        .main-nav a.active::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            width: 100%;
            height: 2px;
            background: var(--gold);
            border-radius: 2px;
        }

        .header-actions {
            display: flex;
            align-items: center;
            gap: 0.75rem;
        }

        .btn-login {
            background: transparent;
            border: 1px solid var(--gold);
            color: var(--gold);
            padding: 0.4rem 1.2rem;
            border-radius: 2rem;
            font-weight: 600;
            font-size: 0.85rem;
            transition: all 0.25s;
        }

        .btn-login:hover {
            background: rgba(245,158,11,0.1);
            border-color: var(--gold-light);
        }

        .btn-signup {
            background: linear-gradient(135deg, var(--gold), var(--gold-dim));
            color: var(--bg-primary);
            padding: 0.4rem 1.4rem;
            border-radius: 2rem;
            font-weight: 700;
            font-size: 0.85rem;
            border: none;
            box-shadow: 0 4px 14px rgba(245,158,11,0.35);
            transition: all 0.25s;
        }

        .btn-signup:hover {
            transform: translateY(-1px);
            box-shadow: 0 6px 20px rgba(245,158,11,0.5);
        }

        .hamburger {
            display: none;
            background: none;
            border: none;
            color: var(--gold);
            font-size: 1.8rem;
            cursor: pointer;
        }

        .mobile-menu {
            display: none;
            flex-direction: column;
            background: var(--bg-secondary);
            border-top: 1px solid rgba(245,158,11,0.3);
            padding: 1rem;
        }

        .mobile-menu a {
            padding: 0.75rem 1rem;
            color: var(--mint);
            font-weight: 500;
            border-bottom: 1px solid rgba(255,255,255,0.05);
        }

        .mobile-menu a:hover {
            color: var(--gold);
        }

        /* Page Banner */
        .page-banner {
            background: linear-gradient(180deg, #042213 0%, #0B2E1E 100%);
            padding: 3rem 0;
            position: relative;
            overflow: hidden;
            border-bottom: 1px solid rgba(245,158,11,0.15);
        }

        .page-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.jpg') center/cover no-repeat;
            opacity: 0.15;
            z-index: 0;
        }

        .page-banner-content {
            position: relative;
            z-index: 2;
        }

        .page-banner h1 {
            font-family: var(--font-heading);
            font-size: clamp(1.8rem, 4vw, 2.4rem);
            color: var(--gold-light);
            margin-bottom: 0.75rem;
        }

        .page-banner .article-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 0.5rem 1.5rem;
            color: var(--text-muted);
            font-size: 0.9rem;
            align-items: center;
        }

        .page-banner .article-meta span {
            display: flex;
            align-items: center;
            gap: 0.35rem;
        }

        .badge-category {
            background: rgba(245,158,11,0.15);
            color: var(--gold-light);
            padding: 0.2rem 1rem;
            border-radius: 2rem;
            font-weight: 600;
            font-size: 0.8rem;
            border: 1px solid rgba(245,158,11,0.3);
        }

        /* Article Content */
        .article-layout {
            padding: 3rem 0;
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 2.5rem;
            align-items: start;
        }

        .article-main {
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            padding: 2rem;
            border: 1px solid rgba(245,158,11,0.15);
            box-shadow: var(--shadow-card);
        }

        .article-body {
            font-size: 1.05rem;
            line-height: 1.75;
            color: var(--text-body);
        }

        .article-body h2 {
            font-family: var(--font-heading);
            color: var(--gold-light);
            font-size: 1.5rem;
            margin: 2rem 0 1rem;
            border-left: 3px solid var(--gold);
            padding-left: 1rem;
        }

        .article-body h3 {
            font-family: var(--font-heading);
            color: var(--gold);
            font-size: 1.25rem;
            margin: 1.5rem 0 0.75rem;
        }

        .article-body p {
            margin-bottom: 1.25rem;
        }

        .article-body ul, .article-body ol {
            margin: 1rem 0 1.5rem 1.5rem;
            padding: 0;
        }

        .article-body li {
            margin-bottom: 0.5rem;
        }

        .article-body img {
            border-radius: var(--radius-md);
            margin: 1.5rem 0;
            box-shadow: 0 4px 16px rgba(0,0,0,0.4);
        }

        .article-body blockquote {
            background: rgba(245,158,11,0.08);
            border-left: 4px solid var(--gold);
            margin: 1.5rem 0;
            padding: 1rem 1.5rem;
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            color: var(--mint);
            font-style: italic;
        }

        .article-body table {
            width: 100%;
            border-collapse: collapse;
            margin: 1.5rem 0;
            font-size: 0.95rem;
        }

        .article-body th {
            background: var(--bg-secondary);
            color: var(--gold-light);
            padding: 0.75rem 1rem;
            text-align: left;
            font-weight: 700;
            border-bottom: 2px solid var(--gold);
        }

        .article-body td {
            padding: 0.65rem 1rem;
            border-bottom: 1px solid rgba(255,255,255,0.08);
        }

        .article-body tr:hover td {
            background: rgba(245,158,11,0.05);
        }

        /* Sidebar */
        .sidebar {
            display: flex;
            flex-direction: column;
            gap: 2rem;
        }

        .sidebar-card {
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            padding: 1.5rem;
            border: 1px solid rgba(245,158,11,0.12);
            box-shadow: var(--shadow-card);
        }

        .sidebar-card h4 {
            font-family: var(--font-heading);
            color: var(--gold-light);
            font-size: 1.1rem;
            margin-bottom: 1rem;
            border-bottom: 2px solid rgba(245,158,11,0.25);
            padding-bottom: 0.5rem;
        }

        .sidebar-card ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .sidebar-card ul li {
            padding: 0.6rem 0;
            border-bottom: 1px solid rgba(255,255,255,0.05);
            transition: all 0.2s;
        }

        .sidebar-card ul li:last-child {
            border-bottom: none;
        }

        .sidebar-card ul li a {
            color: var(--text-body);
            font-size: 0.9rem;
            display: flex;
            align-items: flex-start;
            gap: 0.5rem;
            transition: color 0.2s;
        }

        .sidebar-card ul li a i {
            color: var(--gold);
            font-size: 0.7rem;
            margin-top: 0.35rem;
        }

        .sidebar-card ul li a:hover {
            color: var(--gold);
        }

        .sidebar-game {
            background: rgba(245,158,11,0.08);
            border: 1px solid rgba(245,158,11,0.25);
            border-radius: var(--radius-md);
            padding: 1.25rem;
            text-align: center;
            transition: all 0.3s;
            cursor: pointer;
        }

        .sidebar-game:hover {
            background: rgba(245,158,11,0.15);
            transform: translateY(-2px);
        }

        .sidebar-game img {
            border-radius: var(--radius-sm);
            margin-bottom: 0.75rem;
            width: 100%;
        }

        .sidebar-game .game-name {
            color: var(--white);
            font-weight: 700;
            font-size: 0.9rem;
            margin-bottom: 0.25rem;
        }

        .sidebar-game .game-badge {
            display: inline-block;
            background: var(--red);
            color: var(--white);
            padding: 0.15rem 0.65rem;
            border-radius: 1rem;
            font-size: 0.7rem;
            font-weight: 700;
            text-transform: uppercase;
        }

        /* CTA Strip */
        .cta-strip {
            background: linear-gradient(135deg, rgba(245,158,11,0.1), rgba(180,83,9,0.1));
            border: 1px solid rgba(245,158,11,0.3);
            border-radius: var(--radius-lg);
            padding: 2.5rem 2rem;
            text-align: left;
            margin: 2rem 0;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 1.5rem;
        }

        .cta-strip-text h3 {
            font-family: var(--font-heading);
            color: var(--gold-light);
            font-size: 1.5rem;
            margin-bottom: 0.35rem;
        }

        .cta-strip-text p {
            color: var(--text-body);
            margin: 0;
            font-size: 0.95rem;
        }

        /* Share */
        .share-buttons {
            display: flex;
            gap: 0.75rem;
            margin-top: 2rem;
            flex-wrap: wrap;
        }

        .share-btn {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            background: var(--bg-secondary);
            border: 1px solid rgba(245,158,11,0.25);
            color: var(--gold);
            font-size: 1rem;
            transition: all 0.3s;
        }

        .share-btn:hover {
            background: var(--gold);
            color: var(--bg-primary);
            border-color: var(--gold);
            transform: translateY(-2px);
            box-shadow: var(--shadow-gold);
        }

        /* NotFound */
        .not-found-card {
            text-align: center;
            padding: 4rem 2rem;
        }

        .not-found-card i {
            font-size: 3.5rem;
            color: var(--gold-dim);
            margin-bottom: 1.25rem;
        }

        .not-found-card h2 {
            font-family: var(--font-heading);
            color: var(--gold-light);
            font-size: 1.5rem;
            margin-bottom: 0.75rem;
        }

        .not-found-card p {
            color: var(--text-muted);
            margin-bottom: 2rem;
        }

        /* Footer */
        .site-footer {
            background: #03120C;
            padding: 2.5rem 0 1.5rem;
            border-top: 2px solid rgba(245,158,11,0.2);
            margin-top: 1rem;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 2rem;
            margin-bottom: 2rem;
        }

        .footer-col h4 {
            color: var(--gold-light);
            font-family: var(--font-heading);
            font-size: 1.1rem;
            margin-bottom: 1rem;
        }

        .footer-col p {
            color: var(--text-muted);
            font-size: 0.9rem;
            line-height: 1.6;
            margin: 0;
        }

        .footer-col a {
            display: block;
            color: var(--text-muted);
            font-size: 0.9rem;
            margin-bottom: 0.5rem;
            transition: color 0.2s;
        }

        .footer-col a:hover {
            color: var(--gold);
        }

        .footer-bottom {
            text-align: center;
            border-top: 1px solid rgba(255,255,255,0.06);
            padding-top: 1.25rem;
            color: var(--text-muted);
            font-size: 0.8rem;
        }

        /* FAB */
        .fab {
            position: fixed;
            left: 1rem;
            bottom: 6rem;
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: linear-gradient(135deg, #0A2818, #0B2E1E);
            border: 2px solid var(--gold);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--gold);
            font-size: 1.5rem;
            z-index: 50;
            box-shadow: 0 6px 25px rgba(245,158,11,0.35);
            transition: all 0.3s;
            opacity: 0.85;
            cursor: pointer;
            animation: gentleFloat 3s ease-in-out infinite;
        }

        .fab:hover {
            opacity: 1;
            transform: scale(1.1);
            box-shadow: 0 8px 30px rgba(245,158,11,0.55);
        }

        @keyframes gentleFloat {
            0%, 100% { transform: translateY(0); }
            50% { transform: translateY(-6px); }
        }

        .fab-badge {
            position: absolute;
            top: -4px;
            right: -4px;
            width: 14px;
            height: 14px;
            background: var(--red);
            border-radius: 50%;
            border: 2px solid var(--white);
            animation: pulse 1.8s ease-in-out infinite;
        }

        @keyframes pulse {
            0%, 100% { transform: scale(1); opacity: 1; }
            50% { transform: scale(1.3); opacity: 0.7; }
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .article-layout {
                grid-template-columns: 1fr;
            }

            .sidebar {
                display: grid;
                grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
                gap: 1.5rem;
            }

            .main-nav {
                gap: 1rem;
            }
        }

        @media (max-width: 768px) {
            .header-inner {
                flex-wrap: wrap;
                gap: 0.75rem;
            }

            .main-nav {
                display: none;
            }

            .hamburger {
                display: block;
            }

            .mobile-menu.open {
                display: flex;
            }

            .article-main {
                padding: 1.25rem;
            }

            .cta-strip {
                flex-direction: column;
                text-align: center;
                padding: 2rem 1.25rem;
            }

            .page-banner h1 {
                font-size: 1.5rem;
            }
        }

        @media (max-width: 520px) {
            .header-actions .btn-login,
            .header-actions .btn-signup {
                padding: 0.35rem 0.85rem;
                font-size: 0.75rem;
            }

            .logo {
                font-size: 1.1rem;
            }

            .article-body {
                font-size: 0.98rem;
            }
        }

/* roulang page: category1 */
:root {
      --bg-primary: #051F14;
      --bg-secondary: #0B2E1E;
      --bg-card: #0A2818;
      --gold: #F59E0B;
      --gold-light: #FCD34D;
      --gold-dim: #B45309;
      --red: #DC2626;
      --red-dark: #991B1B;
      --white: #F8FAFC;
      --mint: #D1FAE5;
      --olive: #A3A375;
      --text-body: #E2E8F0;
      --text-muted: #94A3B8;
      --radius-sm: 0.5rem;
      --radius-md: 0.75rem;
      --radius-lg: 1.25rem;
      --shadow-card: 0 4px 24px rgba(0,0,0,0.5);
      --shadow-gold: 0 6px 25px rgba(245,158,11,0.3);
      --font-heading: 'Georgia', 'Times New Roman', serif;
      --font-body: 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif;
    }

    body {
      margin: 0;
      padding: 0;
      background-color: var(--bg-primary);
      color: var(--text-body);
      font-family: var(--font-body);
      line-height: 1.6;
      -webkit-font-smoothing: antialiased;
    }

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

    a {
      text-decoration: none;
      color: inherit;
      transition: color 0.2s ease;
    }

    button {
      cursor: pointer;
      font-family: inherit;
    }

    .container {
      max-width: 1200px;
      margin: 0 auto;
      padding-left: 1rem;
      padding-right: 1rem;
    }

    /* Header & Nav */
    .site-header {
      background: rgba(5, 31, 20, 0.92);
      backdrop-filter: blur(20px);
      -webkit-backdrop-filter: blur(20px);
      border-bottom: 1px solid rgba(245, 158, 11, 0.2);
      position: sticky;
      top: 0;
      z-index: 100;
      transition: background 0.3s;
    }

    .header-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      min-height: 64px;
    }

    .logo {
      font-family: var(--font-heading);
      font-size: 1.35rem;
      font-weight: bold;
      background: linear-gradient(135deg, var(--gold-light), var(--gold));
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      background-clip: text;
      white-space: nowrap;
      letter-spacing: 0.5px;
    }

    .main-nav {
      display: flex;
      align-items: center;
      gap: 2rem;
    }

    .main-nav a {
      color: var(--mint);
      font-weight: 500;
      font-size: 0.95rem;
      position: relative;
      padding-bottom: 4px;
      transition: color 0.2s;
    }

    .main-nav a:hover {
      color: var(--gold);
    }

    .main-nav a.active {
      color: var(--gold);
    }

    .main-nav a.active::after {
      content: '';
      position: absolute;
      bottom: -2px;
      left: 0;
      width: 100%;
      height: 2px;
      background: var(--gold);
      border-radius: 2px;
    }

    .header-actions {
      display: flex;
      align-items: center;
      gap: 0.75rem;
    }

    .btn-login {
      background: transparent;
      border: 1px solid var(--gold);
      color: var(--gold);
      padding: 0.4rem 1.2rem;
      border-radius: 2rem;
      font-weight: 600;
      font-size: 0.85rem;
      transition: all 0.25s;
    }

    .btn-login:hover {
      background: rgba(245,158,11,0.1);
      border-color: var(--gold-light);
    }

    .btn-signup {
      background: linear-gradient(135deg, var(--gold), var(--gold-dim));
      color: var(--bg-primary);
      padding: 0.4rem 1.4rem;
      border-radius: 2rem;
      font-weight: 700;
      font-size: 0.85rem;
      border: none;
      box-shadow: 0 4px 14px rgba(245,158,11,0.35);
      transition: all 0.25s;
    }

    .btn-signup:hover {
      transform: translateY(-1px);
      box-shadow: 0 6px 20px rgba(245,158,11,0.5);
    }

    /* Mobile nav */
    .hamburger {
      display: none;
      background: none;
      border: none;
      color: var(--gold);
      font-size: 1.8rem;
      cursor: pointer;
    }

    .mobile-menu {
      display: none;
      flex-direction: column;
      background: var(--bg-secondary);
      border-top: 1px solid rgba(245,158,11,0.3);
      padding: 1rem;
    }

    .mobile-menu a {
      padding: 0.75rem 1rem;
      color: var(--mint);
      font-weight: 500;
      border-bottom: 1px solid rgba(255,255,255,0.05);
    }

    .mobile-menu a:hover {
      color: var(--gold);
    }

    /* Page Banner */
    .page-banner {
      background: linear-gradient(180deg, #042213 0%, #0B2E1E 100%);
      padding: 2.5rem 0;
      position: relative;
      overflow: hidden;
      border-bottom: 1px solid rgba(245,158,11,0.1);
    }

    .page-banner::before {
      content: '';
      position: absolute;
      inset: 0;
      background: url('/assets/images/backpic/back-5.jpg') center/cover no-repeat;
      opacity: 0.15;
      z-index: 0;
    }

    .page-banner-content {
      position: relative;
      z-index: 2;
      text-align: left;
    }

    .page-banner h1 {
      font-family: var(--font-heading);
      font-size: clamp(1.8rem, 4vw, 2.4rem);
      font-weight: 700;
      color: var(--gold-light);
      margin-bottom: 0.5rem;
    }

    .breadcrumb {
      color: var(--text-muted);
      font-size: 0.9rem;
    }

    .breadcrumb a {
      color: var(--mint);
    }

    .breadcrumb a:hover {
      color: var(--gold);
    }

    /* Section common */
    .section {
      padding: 3rem 0;
    }

    .section-dark {
      background: var(--bg-secondary);
    }

    .section-title {
      font-family: var(--font-heading);
      font-size: 1.8rem;
      color: var(--gold-light);
      margin-bottom: 2rem;
      text-align: left;
    }

    .section-subtitle {
      color: var(--text-muted);
      font-size: 1.05rem;
      margin-bottom: 2rem;
      line-height: 1.6;
      text-align: left;
      max-width: 780px;
    }

    /* Guide Cards */
    .guide-grid {
      display: grid;
      grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
      gap: 1.5rem;
    }

    .guide-card {
      background: var(--bg-card);
      border: 1px solid rgba(245,158,11,0.15);
      border-radius: var(--radius-md);
      padding: 1.5rem;
      box-shadow: var(--shadow-card);
      transition: all 0.3s;
      display: flex;
      flex-direction: column;
    }

    .guide-card:hover {
      transform: translateY(-3px);
      border-color: var(--gold);
      box-shadow: 0 8px 30px rgba(245,158,11,0.2);
    }

    .guide-card-icon {
      font-size: 2rem;
      color: var(--gold);
      margin-bottom: 1rem;
    }

    .guide-card h3 {
      font-family: var(--font-heading);
      font-size: 1.3rem;
      color: var(--white);
      margin-bottom: 0.75rem;
    }

    .guide-card p {
      color: var(--text-muted);
      font-size: 0.95rem;
      line-height: 1.6;
      flex: 1;
    }

    /* Steps */
    .steps-list {
      list-style: none;
      margin: 0;
      padding: 0;
      counter-reset: step-counter;
    }

    .steps-list li {
      counter-increment: step-counter;
      display: flex;
      gap: 1.25rem;
      margin-bottom: 2rem;
      align-items: flex-start;
    }

    .step-count {
      background: linear-gradient(135deg, var(--gold), var(--gold-dim));
      color: var(--bg-primary);
      width: 2.5rem;
      height: 2.5rem;
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      font-size: 1.1rem;
      flex-shrink: 0;
      box-shadow: 0 0 12px rgba(245,158,11,0.4);
    }

    .step-content h4 {
      color: var(--white);
      font-weight: 600;
      font-size: 1.1rem;
      margin-bottom: 0.4rem;
    }

    .step-content p {
      color: var(--text-muted);
      font-size: 0.95rem;
      line-height: 1.6;
    }

    /* Tips */
    .tip-box {
      background: var(--bg-card);
      border-left: 4px solid var(--gold);
      border-radius: 0 var(--radius-md) var(--radius-md) 0;
      padding: 1.25rem 1.5rem;
      margin-bottom: 1.5rem;
    }

    .tip-box h4 {
      color: var(--gold-light);
      font-weight: 600;
      margin-bottom: 0.5rem;
    }

    .tip-box p {
      color: var(--text-muted);
      font-size: 0.95rem;
      line-height: 1.6;
    }

    /* Content List */
    .post-list {
      list-style: none;
      margin: 0;
      padding: 0;
    }

    .post-item {
      display: flex;
      gap: 1.25rem;
      align-items: center;
      padding: 1rem 0;
      border-bottom: 1px solid rgba(255,255,255,0.05);
    }

    .post-item:last-child {
      border-bottom: none;
    }

    .post-thumb {
      width: 80px;
      height: 60px;
      border-radius: var(--radius-sm);
      object-fit: cover;
      flex-shrink: 0;
      border: 1px solid rgba(245,158,11,0.2);
    }

    .post-info h4 {
      font-size: 1rem;
      color: var(--white);
      margin-bottom: 0.2rem;
      font-weight: 600;
    }

    .post-info .post-meta {
      font-size: 0.8rem;
      color: var(--text-muted);
    }

    .post-info a:hover h4 {
      color: var(--gold);
    }

    /* CTA */
    .cta-section {
      background: linear-gradient(135deg, #0A2818 0%, #051F14 100%);
      border: 1px solid rgba(245,158,11,0.4);
      border-radius: var(--radius-lg);
      padding: 2.5rem;
      text-align: center;
      box-shadow: 0 8px 32px rgba(245,158,11,0.15);
    }

    .cta-section h2 {
      font-family: var(--font-heading);
      color: var(--gold-light);
      font-size: 1.6rem;
      margin-bottom: 0.75rem;
    }

    .cta-section p {
      color: var(--text-muted);
      margin-bottom: 1.5rem;
      max-width: 600px;
      margin-left: auto;
      margin-right: auto;
    }

    .btn-primary {
      background: linear-gradient(135deg, var(--gold), var(--gold-dim));
      color: var(--bg-primary);
      font-weight: 800;
      padding: 0.75rem 2.5rem;
      border-radius: 2.5rem;
      font-size: 1rem;
      box-shadow: 0 6px 20px rgba(245,158,11,0.45);
      transition: all 0.3s;
      border: none;
      display: inline-block;
    }

    .btn-primary:hover {
      transform: translateY(-2px);
      box-shadow: 0 8px 28px rgba(245,158,11,0.6);
      color: var(--bg-primary);
    }

    .btn-outline {
      background: transparent;
      border: 2px solid var(--gold);
      color: var(--gold);
      font-weight: 700;
      padding: 0.65rem 2rem;
      border-radius: 2.5rem;
      font-size: 1rem;
      transition: all 0.3s;
      display: inline-block;
    }

    .btn-outline:hover {
      background: rgba(245,158,11,0.08);
    }

    /* FAQ */
    .faq-item {
      background: var(--bg-card);
      border: 1px solid rgba(245,158,11,0.1);
      border-radius: var(--radius-md);
      margin-bottom: 0.75rem;
      overflow: hidden;
    }

    .faq-question {
      padding: 1.1rem 1.5rem;
      font-weight: 600;
      color: var(--white);
      cursor: pointer;
      display: flex;
      justify-content: space-between;
      align-items: center;
      transition: background 0.2s;
    }

    .faq-question:hover {
      background: rgba(245,158,11,0.05);
    }

    .faq-answer {
      padding: 0 1.5rem 1.25rem;
      color: var(--text-muted);
      font-size: 0.95rem;
      line-height: 1.6;
    }

    /* FAB */
    .fab-left {
      position: fixed;
      left: 1.5rem;
      bottom: 6rem;
      z-index: 50;
      width: 3.5rem;
      height: 3.5rem;
      border-radius: 50%;
      background: linear-gradient(135deg, var(--gold), var(--gold-dim));
      border: 2px solid var(--gold-light);
      color: var(--bg-primary);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.6rem;
      box-shadow: 0 6px 25px rgba(245,158,11,0.35);
      cursor: pointer;
      transition: all 0.3s;
      opacity: 0.8;
    }

    .fab-left:hover {
      opacity: 1;
      transform: scale(1.1);
      box-shadow: 0 8px 32px rgba(245,158,11,0.55);
    }

    /* Footer */
    .site-footer {
      background: var(--bg-secondary);
      border-top: 2px solid rgba(245,158,11,0.3);
      padding: 2.5rem 0 1.5rem;
      color: var(--text-muted);
      font-size: 0.9rem;
    }

    .footer-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
      gap: 2rem;
      margin-bottom: 2rem;
    }

    .footer-col h4 {
      color: var(--gold-light);
      font-family: var(--font-heading);
      margin-bottom: 1rem;
      font-size: 1.1rem;
    }

    .footer-col p {
      color: var(--text-muted);
      line-height: 1.6;
    }

    .footer-col a {
      display: block;
      color: var(--text-muted);
      margin-bottom: 0.5rem;
      transition: color 0.2s;
    }

    .footer-col a:hover {
      color: var(--gold);
    }

    .footer-bottom {
      border-top: 1px solid rgba(255,255,255,0.08);
      padding-top: 1.5rem;
      text-align: center;
      color: var(--text-muted);
      font-size: 0.85rem;
    }

    /* Responsive */
    @media (max-width: 1024px) {
      .guide-grid {
        grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
      }
    }

    @media (max-width: 768px) {
      .main-nav {
        display: none;
      }
      .header-actions {
        display: none;
      }
      .hamburger {
        display: block;
      }
      .mobile-menu.show {
        display: flex;
      }
      .header-actions-mobile {
        display: flex;
        gap: 0.5rem;
        padding: 1rem;
        justify-content: center;
        background: var(--bg-secondary);
        border-top: 1px solid rgba(245,158,11,0.2);
      }
      .section {
        padding: 2rem 0;
      }
      .section-title {
        font-size: 1.5rem;
      }
      .cta-section {
        padding: 1.5rem;
      }
      .post-item {
        flex-direction: column;
        align-items: flex-start;
      }
      .post-thumb {
        width: 100%;
        height: auto;
        max-height: 160px;
        object-fit: cover;
      }
    }

    @media (max-width: 520px) {
      .guide-grid {
        grid-template-columns: 1fr;
      }
      .footer-grid {
        grid-template-columns: 1fr;
      }
      .page-banner h1 {
        font-size: 1.5rem;
      }
      .fab-left {
        left: 1rem;
        bottom: 5rem;
        width: 3rem;
        height: 3rem;
        font-size: 1.3rem;
      }
    }

/* roulang page: category2 */
:root {
            --bg-primary: #051F14;
            --bg-secondary: #0B2E1E;
            --bg-card: #0A2818;
            --gold: #F59E0B;
            --gold-light: #FCD34D;
            --gold-dim: #B45309;
            --red: #DC2626;
            --red-dark: #991B1B;
            --white: #F8FAFC;
            --mint: #D1FAE5;
            --olive: #A3A375;
            --text-body: #E2E8F0;
            --text-muted: #94A3B8;
            --radius-sm: 0.5rem;
            --radius-md: 0.75rem;
            --radius-lg: 1.25rem;
            --shadow-card: 0 4px 24px rgba(0,0,0,0.5);
            --shadow-gold: 0 6px 25px rgba(245,158,11,0.3);
            --font-heading: 'Georgia', 'Times New Roman', serif;
            --font-body: 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif;
        }
        
        * {
            box-sizing: border-box;
        }
        
        body {
            margin: 0;
            padding: 0;
            background-color: var(--bg-primary);
            color: var(--text-body);
            font-family: var(--font-body);
            line-height: 1.6;
            -webkit-font-smoothing: antialiased;
        }
        
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        
        a {
            text-decoration: none;
            color: inherit;
            transition: color 0.2s ease, background-color 0.2s ease;
        }
        
        button {
            cursor: pointer;
            font-family: inherit;
        }
        
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding-left: 1rem;
            padding-right: 1rem;
        }
        
        /* Header & Navigation */
        .site-header {
            background: rgba(5, 31, 20, 0.92);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid rgba(245, 158, 11, 0.2);
            position: sticky;
            top: 0;
            z-index: 100;
            transition: background 0.3s;
        }
        
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            min-height: 64px;
        }
        
        .logo {
            font-family: var(--font-heading);
            font-size: 1.35rem;
            font-weight: bold;
            background: linear-gradient(135deg, var(--gold-light), var(--gold));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            white-space: nowrap;
            letter-spacing: 0.5px;
        }
        
        .main-nav {
            display: flex;
            align-items: center;
            gap: 2rem;
        }
        
        .main-nav a {
            color: var(--mint);
            font-weight: 500;
            font-size: 0.95rem;
            position: relative;
            padding-bottom: 4px;
            transition: color 0.2s;
        }
        
        .main-nav a:hover {
            color: var(--gold);
        }
        
        .main-nav a.active {
            color: var(--gold);
        }
        
        .main-nav a.active::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            width: 100%;
            height: 2px;
            background: var(--gold);
            border-radius: 2px;
        }
        
        .header-actions {
            display: flex;
            align-items: center;
            gap: 0.75rem;
        }
        
        .btn-login {
            background: transparent;
            border: 1px solid var(--gold);
            color: var(--gold);
            padding: 0.4rem 1.2rem;
            border-radius: 2rem;
            font-weight: 600;
            font-size: 0.85rem;
            transition: all 0.25s;
        }
        
        .btn-login:hover {
            background: rgba(245, 158, 11, 0.1);
            border-color: var(--gold-light);
        }
        
        .btn-signup {
            background: linear-gradient(135deg, var(--gold), var(--gold-dim));
            color: var(--bg-primary);
            padding: 0.4rem 1.4rem;
            border-radius: 2rem;
            font-weight: 700;
            font-size: 0.85rem;
            border: none;
            box-shadow: 0 4px 14px rgba(245, 158, 11, 0.35);
            transition: all 0.25s;
        }
        
        .btn-signup:hover {
            transform: translateY(-1px);
            box-shadow: 0 6px 20px rgba(245, 158, 11, 0.5);
        }
        
        .hamburger {
            display: none;
            background: none;
            border: none;
            color: var(--gold);
            font-size: 1.8rem;
            cursor: pointer;
        }
        
        .mobile-menu {
            display: none;
            flex-direction: column;
            background: var(--bg-secondary);
            border-top: 1px solid rgba(245, 158, 11, 0.3);
            padding: 1rem;
        }
        
        .mobile-menu a {
            padding: 0.75rem 1rem;
            color: var(--mint);
            font-weight: 500;
            border-bottom: 1px solid rgba(255, 255, 255, 0.05);
        }
        
        .mobile-menu a:hover {
            color: var(--gold);
        }
        
        /* Hero Content */
        .page-hero {
            background: linear-gradient(180deg, #042213 0%, #0B2E1E 100%);
            padding: 3.5rem 0 4rem;
            position: relative;
            overflow: hidden;
        }
        
        .page-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-5.jpg') center/cover no-repeat;
            opacity: 0.18;
            z-index: 0;
        }
        
        .hero-content {
            position: relative;
            z-index: 2;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 2.5rem;
            align-items: center;
        }
        
        .hero-text h1 {
            font-family: var(--font-heading);
            font-size: clamp(2rem, 5vw, 2.8rem);
            font-weight: 700;
            color: var(--gold-light);
            line-height: 1.3;
            margin-bottom: 1.25rem;
        }
        
        .hero-text p {
            font-size: 1.1rem;
            color: var(--text-body);
            margin-bottom: 2rem;
            max-width: 520px;
            line-height: 1.6;
        }
        
        .hero-buttons {
            display: flex;
            flex-wrap: wrap;
            gap: 1rem;
        }
        
        .btn-primary {
            background: linear-gradient(135deg, var(--gold), var(--gold-dim));
            color: var(--bg-primary);
            font-weight: 800;
            padding: 0.7rem 2rem;
            border-radius: 2.5rem;
            font-size: 1rem;
            box-shadow: 0 6px 20px rgba(245, 158, 11, 0.45);
            transition: all 0.3s;
            border: none;
        }
        
        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 28px rgba(245, 158, 11, 0.6);
        }
        
        .btn-outline {
            background: transparent;
            border: 2px solid var(--gold);
            color: var(--gold);
            font-weight: 700;
            padding: 0.65rem 2rem;
            border-radius: 2.5rem;
            font-size: 1rem;
            transition: all 0.3s;
        }
        
        .btn-outline:hover {
            background: rgba(245, 158, 11, 0.08);
        }
        
        .hero-visual {
            position: relative;
            z-index: 2;
            display: flex;
            justify-content: center;
        }
        
        .hero-visual img {
            border-radius: var(--radius-lg);
            box-shadow: 0 0 40px rgba(245, 158, 11, 0.2);
            border: 2px solid rgba(245, 158, 11, 0.3);
        }
        
        /* Section Common */
        .section {
            padding: 3.5rem 0;
        }
        
        .section-dark {
            background: var(--bg-secondary);
        }
        
        .section-title {
            font-family: var(--font-heading);
            font-size: clamp(1.6rem, 3.5vw, 2.2rem);
            font-weight: 700;
            color: var(--gold-light);
            margin-bottom: 0.75rem;
            line-height: 1.3;
        }
        
        .section-subtitle {
            color: var(--text-muted);
            font-size: 1.05rem;
            margin-bottom: 2.5rem;
            max-width: 680px;
        }
        
        .text-center {
            text-align: center;
        }
        
        .text-left {
            text-align: left;
        }
        
        /* Metrics Dashboard */
        .metrics-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
            gap: 1.5rem;
        }
        
        .metric-card {
            background: var(--bg-card);
            border: 1px solid rgba(245, 158, 11, 0.25);
            border-radius: var(--radius-md);
            padding: 1.75rem;
            text-align: center;
            transition: transform 0.25s, box-shadow 0.25s;
        }
        
        .metric-card:hover {
            transform: translateY(-4px);
            box-shadow: 0 8px 30px rgba(245, 158, 11, 0.2);
        }
        
        .metric-value {
            font-size: 2.4rem;
            font-weight: 800;
            color: var(--gold);
            font-family: var(--font-heading);
            line-height: 1.1;
        }
        
        .metric-label {
            color: var(--mint);
            font-size: 0.95rem;
            margin-top: 0.5rem;
            font-weight: 500;
        }
        
        /* Service Matrix */
        .service-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 1.75rem;
        }
        
        .service-card {
            background: var(--bg-card);
            border: 1px solid rgba(245, 158, 11, 0.2);
            border-radius: var(--radius-md);
            padding: 2rem;
            transition: all 0.3s;
            display: flex;
            flex-direction: column;
            gap: 1rem;
        }
        
        .service-card:hover {
            border-color: var(--gold);
            transform: translateY(-3px);
            box-shadow: 0 8px 24px rgba(245, 158, 11, 0.15);
        }
        
        .service-icon {
            font-size: 2.4rem;
            color: var(--gold);
            margin-bottom: 0.5rem;
        }
        
        .service-title {
            font-weight: 700;
            font-size: 1.2rem;
            color: var(--white);
        }
        
        .service-desc {
            color: var(--text-muted);
            font-size: 0.95rem;
            line-height: 1.55;
        }
        
        .tag-hot {
            display: inline-block;
            background: var(--red);
            color: white;
            font-size: 0.7rem;
            font-weight: 800;
            padding: 0.2rem 0.65rem;
            border-radius: 2rem;
            text-transform: uppercase;
            letter-spacing: 0.5px;
        }
        
        /* Results Comparison */
        .comparison-container {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 2rem;
        }
        
        .comparison-box {
            background: var(--bg-card);
            border: 1px solid rgba(245, 158, 11, 0.3);
            border-radius: var(--radius-md);
            padding: 2rem;
        }
        
        .comparison-box h4 {
            color: var(--gold);
            font-weight: 700;
            margin-bottom: 1rem;
            font-size: 1.15rem;
        }
        
        .comparison-list {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        
        .comparison-list li {
            padding: 0.5rem 0;
            border-bottom: 1px solid rgba(255, 255, 255, 0.05);
            color: var(--text-body);
            display: flex;
            align-items: center;
            gap: 0.5rem;
            font-size: 0.95rem;
        }
        
        .comparison-list li i {
            color: var(--gold);
            font-size: 1rem;
        }
        
        /* Milestone Timeline */
        .timeline {
            position: relative;
            padding-left: 2.5rem;
        }
        
        .timeline::before {
            content: '';
            position: absolute;
            left: 0.75rem;
            top: 0;
            bottom: 0;
            width: 2px;
            background: linear-gradient(to bottom, var(--gold), var(--gold-dim));
        }
        
        .timeline-item {
            margin-bottom: 2rem;
            position: relative;
        }
        
        .timeline-item::before {
            content: '';
            position: absolute;
            left: -2rem;
            top: 0.4rem;
            width: 12px;
            height: 12px;
            background: var(--gold);
            border-radius: 50%;
            box-shadow: 0 0 10px rgba(245, 158, 11, 0.5);
        }
        
        .timeline-item h5 {
            color: var(--gold-light);
            font-weight: 700;
            margin-bottom: 0.3rem;
            font-size: 1.1rem;
        }
        
        .timeline-item p {
            color: var(--text-muted);
            font-size: 0.95rem;
            margin: 0;
        }
        
        /* News List */
        .news-list {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 1.5rem;
            list-style: none;
            padding: 0;
            margin: 0;
        }
        
        .news-item {
            background: var(--bg-card);
            border: 1px solid rgba(245, 158, 11, 0.15);
            border-radius: var(--radius-md);
            padding: 1.5rem;
            transition: transform 0.2s, border-color 0.2s;
        }
        
        .news-item:hover {
            transform: translateY(-2px);
            border-color: var(--gold);
        }
        
        .news-item h5 {
            font-size: 1.05rem;
            font-weight: 700;
            margin-bottom: 0.5rem;
            line-height: 1.4;
        }
        
        .news-item h5 a {
            color: var(--white);
        }
        
        .news-item h5 a:hover {
            color: var(--gold);
        }
        
        .news-item p {
            color: var(--text-muted);
            font-size: 0.85rem;
            line-height: 1.5;
            margin-bottom: 0.75rem;
        }
        
        .news-meta {
            font-size: 0.75rem;
            color: var(--olive);
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }
        
        .btn-view-all {
            display: inline-block;
            margin-top: 2rem;
            color: var(--gold);
            font-weight: 700;
            font-size: 0.95rem;
            border-bottom: 2px solid var(--gold);
            padding-bottom: 2px;
            transition: color 0.2s, border-color 0.2s;
        }
        
        .btn-view-all:hover {
            color: var(--gold-light);
            border-color: var(--gold-light);
        }
        
        /* Platform Security */
        .security-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 1.5rem;
        }
        
        .security-card {
            background: var(--bg-card);
            border-left: 3px solid var(--gold);
            padding: 1.5rem;
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
        }
        
        .security-card h4 {
            color: var(--gold-light);
            font-weight: 700;
            margin-bottom: 0.5rem;
            font-size: 1.05rem;
        }
        
        .security-card p {
            color: var(--text-muted);
            font-size: 0.9rem;
            margin: 0;
        }
        
        /* FAQ */
        .faq-item {
            background: var(--bg-card);
            border: 1px solid rgba(245, 158, 11, 0.2);
            border-radius: var(--radius-md);
            margin-bottom: 1rem;
            overflow: hidden;
        }
        
        .faq-question {
            padding: 1.2rem 1.5rem;
            font-weight: 700;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            color: var(--white);
            transition: background 0.2s;
        }
        
        .faq-question:hover {
            background: rgba(245, 158, 11, 0.05);
        }
        
        .faq-answer {
            padding: 0 1.5rem 1.2rem;
            color: var(--text-muted);
            line-height: 1.6;
            display: none;
        }
        
        .faq-item.active .faq-answer {
            display: block;
        }
        
        .faq-item.active .faq-question i {
            transform: rotate(180deg);
        }
        
        .faq-question i {
            transition: transform 0.3s;
            color: var(--gold);
        }
        
        /* CTA */
        .cta-banner {
            background: linear-gradient(135deg, var(--bg-secondary), #083020);
            border: 1px solid rgba(245, 158, 11, 0.4);
            border-radius: var(--radius-lg);
            padding: 2.5rem 2rem;
            text-align: center;
        }
        
        .cta-banner h3 {
            color: var(--gold-light);
            font-size: 1.8rem;
            font-weight: 700;
            margin-bottom: 1rem;
        }
        
        .cta-banner p {
            color: var(--text-body);
            margin-bottom: 1.5rem;
            font-size: 1.05rem;
        }
        
        .cta-banner .btn-primary {
            font-size: 1.1rem;
            padding: 0.8rem 3rem;
        }
        
        /* Footer */
        .site-footer {
            background: #041a11;
            border-top: 1px solid rgba(245, 158, 11, 0.25);
            padding: 2.5rem 0 1.5rem;
            color: var(--text-muted);
            font-size: 0.9rem;
        }
        
        .footer-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
            gap: 2rem;
            margin-bottom: 2rem;
        }
        
        .footer-col h4 {
            color: var(--gold);
            margin-bottom: 1rem;
            font-weight: 700;
            font-size: 1.05rem;
        }
        
        .footer-col p {
            line-height: 1.5;
        }
        
        .footer-col a {
            display: block;
            color: var(--text-muted);
            padding: 0.25rem 0;
            transition: color 0.2s;
        }
        
        .footer-col a:hover {
            color: var(--gold);
        }
        
        .footer-bottom {
            text-align: center;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding-top: 1.5rem;
        }
        
        /* FAB */
        .fab-float {
            position: fixed;
            left: 1rem;
            bottom: 6rem;
            z-index: 50;
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: linear-gradient(135deg, #0B2E1E, #051F14);
            border: 2px solid var(--gold);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--gold);
            font-size: 1.3rem;
            box-shadow: 0 6px 25px rgba(245, 158, 11, 0.35);
            opacity: 0.8;
            transition: all 0.25s;
            cursor: pointer;
        }
        
        .fab-float:hover {
            opacity: 1;
            transform: scale(1.1);
            box-shadow: 0 8px 30px rgba(245, 158, 11, 0.5);
        }
        
        /* Responsive */
        @media (max-width: 1024px) {
            .hero-content {
                grid-template-columns: 1fr;
                gap: 2rem;
            }
            .hero-visual {
                order: -1;
            }
            .hero-visual img {
                max-height: 300px;
                width: auto;
            }
            .comparison-container {
                grid-template-columns: 1fr;
            }
        }
        
        @media (max-width: 768px) {
            .main-nav {
                display: none;
            }
            .hamburger {
                display: block;
            }
            .mobile-menu.show {
                display: flex;
            }
            .header-actions .btn-login,
            .header-actions .btn-signup {
                font-size: 0.75rem;
                padding: 0.3rem 0.9rem;
            }
            .hero-content {
                grid-template-columns: 1fr;
            }
            .hero-text h1 {
                font-size: 1.7rem;
            }
            .section {
                padding: 2.5rem 0;
            }
            .metrics-grid {
                grid-template-columns: 1fr 1fr;
            }
            .service-grid {
                grid-template-columns: 1fr;
            }
            .security-grid {
                grid-template-columns: 1fr;
            }
        }
        
        @media (max-width: 520px) {
            .metrics-grid {
                grid-template-columns: 1fr;
            }
            .news-list {
                grid-template-columns: 1fr;
            }
        }

/* roulang page: category3 */
:root {
            --bg-primary: #031A12;
            --bg-secondary: #062E20;
            --accent-amber: #F59E0B;
            --accent-lime: #10B981;
            --text-body: #F0FDF4;
            --text-muted: #A7F3D0;
            --surface-card: rgba(6, 46, 32, 0.7);
            --border-glow: rgba(245, 158, 11, 0.25);
            --radius-lg: 1.5rem;
            --radius-md: 1rem;
            --shadow-card: 0 12px 28px rgba(0, 0, 0, 0.4);
            --font-heading: 'Quicksand', sans-serif;
            --font-body: 'Quicksand', sans-serif;
        }
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        body {
            font-family: var(--font-body);
            background-color: var(--bg-primary);
            color: var(--text-body);
            line-height: 1.6;
            -webkit-font-smoothing: antialiased;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 1.25rem;
        }
        /* Header & Nav */
        .site-header {
            background: rgba(3, 26, 18, 0.92);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border-bottom: 1px solid var(--border-glow);
            position: sticky;
            top: 0;
            z-index: 45;
            padding: 0.8rem 0;
        }
        .nav-grid {
            display: flex;
            align-items: center;
            justify-content: space-between;
        }
        .logo {
            font-family: var(--font-heading);
            font-size: 1.6rem;
            font-weight: 700;
            color: var(--accent-amber);
            text-decoration: none;
            letter-spacing: -0.3px;
            display: flex;
            align-items: center;
            gap: 0.4rem;
            white-space: nowrap;
        }
        .logo img {
            width: 38px;
            height: 38px;
            object-fit: contain;
        }
        .nav-links {
            display: flex;
            align-items: center;
            gap: 2.2rem;
            list-style: none;
        }
        .nav-links a {
            font-weight: 600;
            color: var(--text-muted);
            text-decoration: none;
            transition: color 0.2s;
            font-size: 0.95rem;
        }
        .nav-links a:hover,
        .nav-links a.active {
            color: var(--accent-amber);
        }
        .auth-buttons {
            display: flex;
            align-items: center;
            gap: 0.8rem;
        }
        .btn-login {
            background: transparent;
            border: 1px solid var(--accent-amber);
            color: var(--accent-amber);
            padding: 0.4rem 1.2rem;
            border-radius: 2rem;
            font-weight: 600;
            transition: 0.25s;
            font-size: 0.9rem;
            cursor: pointer;
        }
        .btn-login:hover {
            background: rgba(245, 158, 11, 0.12);
        }
        .btn-signup {
            background: linear-gradient(145deg, #F59E0B, #D97706);
            color: #031A12;
            border: none;
            padding: 0.45rem 1.4rem;
            border-radius: 2rem;
            font-weight: 700;
            transition: 0.25s;
            font-size: 0.9rem;
            cursor: pointer;
            box-shadow: 0 6px 18px rgba(245, 158, 11, 0.3);
        }
        .btn-signup:hover {
            box-shadow: 0 8px 24px rgba(245, 158, 11, 0.5);
            transform: translateY(-1px);
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            color: var(--accent-amber);
            font-size: 2rem;
            cursor: pointer;
        }
        .mobile-menu {
            display: none;
            flex-direction: column;
            background: rgba(6, 46, 32, 0.96);
            backdrop-filter: blur(20px);
            padding: 1.2rem 0;
            border-bottom: 1px solid var(--border-glow);
        }
        .mobile-menu a {
            padding: 0.8rem 1.5rem;
            color: var(--text-muted);
            font-weight: 600;
            text-decoration: none;
            border-bottom: 1px solid rgba(255, 255, 255, 0.05);
        }
        .mobile-menu a.active {
            color: var(--accent-amber);
        }
        .mobile-auth {
            display: flex;
            gap: 0.8rem;
            padding: 0.8rem 1.5rem;
        }
        /* Hero */
        .hero {
            background: radial-gradient(circle at 30% 20%, #06402A, #031A12);
            padding: 3.5rem 0 4.5rem;
            position: relative;
            overflow: hidden;
        }
        .hero-content {
            position: relative;
            z-index: 3;
            display: grid;
            grid-template-columns: 1fr 1.1fr;
            gap: 2.5rem;
            align-items: center;
        }
        .hero-text h1 {
            font-family: var(--font-heading);
            font-size: 2.5rem;
            font-weight: 700;
            color: var(--accent-amber);
            line-height: 1.25;
            margin-bottom: 1.2rem;
        }
        .hero-text p {
            font-size: 1.15rem;
            color: var(--text-muted);
            margin-bottom: 2rem;
            line-height: 1.6;
        }
        .hero-buttons {
            display: flex;
            flex-wrap: wrap;
            gap: 1rem;
        }
        .btn-primary {
            background: linear-gradient(135deg, var(--accent-amber), #FCD34D);
            color: #042213;
            font-weight: 700;
            padding: 0.8rem 2.2rem;
            border-radius: 2.5rem;
            font-size: 1.05rem;
            box-shadow: 0 8px 22px rgba(245, 158, 11, 0.5);
            transition: 0.25s;
            border: none;
            cursor: pointer;
            text-decoration: none;
            display: inline-block;
        }
        .btn-primary:hover {
            transform: translateY(-3px);
            box-shadow: 0 12px 24px rgba(245, 158, 11, 0.7);
        }
        .btn-outline-light {
            background: transparent;
            border: 2px solid var(--accent-lime);
            color: var(--accent-lime);
            font-weight: 700;
            padding: 0.75rem 2.2rem;
            border-radius: 2.5rem;
            transition: 0.25s;
            text-decoration: none;
        }
        .hero-visual img {
            border-radius: 1.8rem;
            box-shadow: 0 0 45px rgba(16, 185, 129, 0.25);
            border: 1px solid rgba(16, 185, 129, 0.4);
            width: 100%;
        }
        /* Sections */
        .section {
            padding: 4rem 0;
        }
        .section-dark {
            background: var(--bg-secondary);
        }
        .section-title {
            font-family: var(--font-heading);
            font-size: 2rem;
            font-weight: 700;
            color: var(--accent-amber);
            margin-bottom: 0.5rem;
        }
        .section-subtitle {
            color: var(--text-muted);
            margin-bottom: 2.5rem;
            font-size: 1.1rem;
        }
        .card-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
            gap: 1.8rem;
            margin-top: 1.5rem;
        }
        .strategy-card {
            background: var(--surface-card);
            backdrop-filter: blur(12px);
            border: 1px solid var(--border-glow);
            border-radius: var(--radius-lg);
            padding: 2rem 1.4rem;
            transition: all 0.3s;
            box-shadow: 0 10px 20px rgba(0,0,0,0.3);
        }
        .strategy-card:hover {
            transform: translateY(-6px);
            border-color: var(--accent-amber);
            box-shadow: 0 18px 30px rgba(245,158,11,0.2);
        }
        .strategy-card h3 {
            font-weight: 700;
            font-size: 1.35rem;
            color: var(--accent-amber);
            margin-bottom: 0.7rem;
        }
        .strategy-card p {
            color: var(--text-muted);
            line-height: 1.5;
        }
        .step-list {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 2rem;
            margin: 2.5rem 0 0;
        }
        .step-item {
            display: flex;
            gap: 1.5rem;
            align-items: flex-start;
        }
        .step-number {
            background: var(--accent-amber);
            color: #042213;
            font-weight: 800;
            width: 42px;
            height: 42px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 50%;
            font-size: 1.3rem;
            flex-shrink: 0;
        }
        .step-content h4 {
            font-weight: 700;
            color: var(--accent-amber);
            margin-bottom: 0.3rem;
        }
        .weapon-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
            gap: 1.4rem;
            margin-top: 1.5rem;
        }
        .weapon-badge {
            background: rgba(16, 185, 129, 0.12);
            border: 1px solid rgba(16, 185, 129, 0.4);
            border-radius: 1.2rem;
            padding: 1.2rem 0.8rem;
            text-align: center;
            font-weight: 700;
            color: var(--accent-lime);
        }
        .faq-item {
            background: rgba(3, 26, 18, 0.6);
            border-left: 4px solid var(--accent-amber);
            padding: 1.2rem;
            border-radius: 0 1rem 1rem 0;
            margin-bottom: 1rem;
        }
        .faq-item h4 {
            font-weight: 700;
            color: var(--accent-amber);
            margin-bottom: 0.4rem;
        }
        .news-list {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 1.5rem;
        }
        .news-card {
            background: var(--surface-card);
            border-radius: var(--radius-md);
            padding: 1.5rem;
            border: 1px solid rgba(245,158,11,0.2);
            transition: 0.2s;
        }
        .news-card:hover {
            border-color: var(--accent-amber);
        }
        .news-card h5 {
            color: var(--accent-amber);
            font-weight: 700;
        }
        .news-card time {
            font-size: 0.8rem;
            color: var(--text-muted);
        }
        a {
            color: inherit;
            text-decoration: none;
        }
        .cta-banner {
            background: linear-gradient(105deg, #0B4D2A, #031A12);
            border-radius: 2rem;
            padding: 2.8rem 2rem;
            text-align: center;
            border: 1px solid var(--accent-amber);
            margin-top: 2rem;
        }
        .footer {
            background: #020E0A;
            padding: 2.5rem 0 2rem;
            border-top: 1px solid var(--border-glow);
            color: var(--text-muted);
            font-size: 0.9rem;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
            gap: 2rem;
            margin-bottom: 2rem;
        }
        .footer-logo {
            font-weight: 700;
            color: var(--accent-amber);
            font-size: 1.3rem;
        }
        .footer a {
            color: var(--text-muted);
            text-decoration: none;
        }
        .footer a:hover {
            color: var(--accent-amber);
        }
        .copyright {
            text-align: center;
            border-top: 1px solid rgba(255,255,255,0.08);
            padding-top: 1.5rem;
            color: #9BB8A5;
        }
        /* FAB */
        .fab-left {
            position: fixed;
            left: 1.5rem;
            bottom: 6rem;
            z-index: 50;
            background: linear-gradient(145deg, #F59E0B, #B45309);
            width: 56px;
            height: 56px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: 0 10px 25px rgba(245,158,11,0.5);
            color: #031A12;
            font-size: 1.8rem;
            transition: 0.3s;
            cursor: pointer;
            border: 2px solid #FDE68A;
        }
        .fab-left:hover {
            transform: scale(1.12);
        }
        @media (max-width: 768px) {
            .nav-links, .auth-buttons {
                display: none;
            }
            .hamburger {
                display: block;
            }
            .mobile-menu.open {
                display: flex;
            }
            .hero-content {
                grid-template-columns: 1fr;
            }
            .hero-text h1 {
                font-size: 2rem;
            }
        }

/* roulang page: category4 */
:root {
      --bg-primary: #051F14;
      --bg-secondary: #0B2E1E;
      --bg-card: #0A2818;
      --gold: #F59E0B;
      --gold-light: #FCD34D;
      --gold-dim: #B45309;
      --red: #DC2626;
      --red-dark: #991B1B;
      --white: #F8FAFC;
      --mint: #D1FAE5;
      --olive: #A3A375;
      --text-body: #E2E8F0;
      --text-muted: #94A3B8;
      --radius-sm: 0.5rem;
      --radius-md: 0.75rem;
      --radius-lg: 1.25rem;
      --shadow-card: 0 4px 24px rgba(0,0,0,0.5);
      --shadow-gold: 0 6px 25px rgba(245,158,11,0.3);
      --font-heading: 'Georgia', 'Times New Roman', serif;
      --font-body: 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif;
    }

    * {
      box-sizing: border-box;
    }

    body {
      margin: 0;
      padding: 0;
      background-color: var(--bg-primary);
      color: var(--text-body);
      font-family: var(--font-body);
      line-height: 1.6;
      -webkit-font-smoothing: antialiased;
    }

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

    a {
      text-decoration: none;
      color: inherit;
      transition: color 0.2s ease;
    }

    button {
      cursor: pointer;
      font-family: inherit;
    }

    .container {
      max-width: 1200px;
      margin: 0 auto;
      padding-left: 1rem;
      padding-right: 1rem;
    }

    .site-header {
      background: rgba(5, 31, 20, 0.92);
      backdrop-filter: blur(20px);
      -webkit-backdrop-filter: blur(20px);
      border-bottom: 1px solid rgba(245, 158, 11, 0.2);
      position: sticky;
      top: 0;
      z-index: 100;
    }

    .header-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      min-height: 64px;
    }

    .logo {
      font-family: var(--font-heading);
      font-size: 1.35rem;
      font-weight: bold;
      background: linear-gradient(135deg, var(--gold-light), var(--gold));
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      background-clip: text;
      white-space: nowrap;
    }

    .main-nav {
      display: flex;
      align-items: center;
      gap: 2rem;
    }

    .main-nav a {
      color: var(--mint);
      font-weight: 500;
      font-size: 0.95rem;
      position: relative;
      padding-bottom: 4px;
      transition: color 0.2s;
    }

    .main-nav a:hover {
      color: var(--gold);
    }

    .main-nav a.active {
      color: var(--gold);
    }

    .main-nav a.active::after {
      content: '';
      position: absolute;
      bottom: -2px;
      left: 0;
      width: 100%;
      height: 2px;
      background: var(--gold);
      border-radius: 2px;
    }

    .header-actions {
      display: flex;
      align-items: center;
      gap: 0.75rem;
    }

    .btn-login {
      background: transparent;
      border: 1px solid var(--gold);
      color: var(--gold);
      padding: 0.4rem 1.2rem;
      border-radius: 2rem;
      font-weight: 600;
      font-size: 0.85rem;
      transition: all 0.25s;
    }

    .btn-login:hover {
      background: rgba(245,158,11,0.1);
      border-color: var(--gold-light);
    }

    .btn-signup {
      background: linear-gradient(135deg, var(--gold), var(--gold-dim));
      color: var(--bg-primary);
      padding: 0.4rem 1.4rem;
      border-radius: 2rem;
      font-weight: 700;
      font-size: 0.85rem;
      border: none;
      box-shadow: 0 4px 14px rgba(245,158,11,0.35);
      transition: all 0.25s;
    }

    .btn-signup:hover {
      transform: translateY(-1px);
      box-shadow: 0 6px 20px rgba(245,158,11,0.5);
    }

    .hamburger {
      display: none;
      background: none;
      border: none;
      color: var(--gold);
      font-size: 1.8rem;
      cursor: pointer;
    }

    .mobile-menu {
      display: none;
      flex-direction: column;
      background: var(--bg-secondary);
      border-top: 1px solid rgba(245,158,11,0.3);
      padding: 1rem;
    }

    .mobile-menu a {
      padding: 0.75rem 1rem;
      color: var(--mint);
      font-weight: 500;
      border-bottom: 1px solid rgba(255,255,255,0.05);
    }

    .mobile-menu a:hover {
      color: var(--gold);
    }

    .hero-cat {
      background: linear-gradient(180deg, #031A12 0%, #0B2E1E 100%);
      padding: 2.5rem 0 3rem;
      position: relative;
      overflow: hidden;
    }

    .hero-cat::before {
      content: '';
      position: absolute;
      inset: 0;
      background: url('/assets/images/backpic/back-3.jpg') center/cover no-repeat;
      opacity: 0.18;
      z-index: 0;
    }

    .hero-cat-content {
      position: relative;
      z-index: 2;
    }

    .hero-cat-content h1 {
      font-family: var(--font-heading);
      font-size: clamp(1.8rem, 4.5vw, 2.4rem);
      color: var(--gold-light);
      margin-bottom: 0.75rem;
    }

    .hero-cat-content p {
      font-size: 1.1rem;
      color: var(--text-body);
      max-width: 700px;
      line-height: 1.65;
    }

    .section {
      padding: 3rem 0;
    }

    .section-dark {
      background: var(--bg-secondary);
    }

    .section-title {
      font-family: var(--font-heading);
      font-size: 1.7rem;
      color: var(--gold-light);
      margin-bottom: 2rem;
      position: relative;
      display: inline-block;
    }

    .promo-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
      gap: 1.5rem;
    }

    .promo-card {
      background: var(--bg-card);
      border: 1px solid rgba(245,158,11,0.2);
      border-radius: var(--radius-md);
      padding: 1.5rem;
      transition: all 0.3s;
    }

    .promo-card:hover {
      border-color: var(--gold);
      box-shadow: var(--shadow-gold);
    }

    .promo-badge {
      display: inline-block;
      padding: 0.25rem 0.9rem;
      border-radius: 2rem;
      font-size: 0.8rem;
      font-weight: 700;
      letter-spacing: 0.4px;
      margin-bottom: 1rem;
    }

    .badge-hot {
      background: var(--red);
      color: white;
    }

    .badge-vip {
      background: linear-gradient(135deg, var(--gold), var(--gold-dim));
      color: var(--bg-primary);
    }

    .badge-new {
      background: var(--mint);
      color: var(--bg-primary);
    }

    .promo-card h3 {
      font-family: var(--font-heading);
      font-size: 1.3rem;
      color: var(--white);
      margin-bottom: 0.6rem;
    }

    .promo-value {
      font-size: 2.2rem;
      font-weight: 900;
      background: linear-gradient(135deg, var(--gold-light), var(--gold));
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      background-clip: text;
      margin: 0.5rem 0;
    }

    .promo-card p {
      color: var(--text-muted);
      font-size: 0.9rem;
      line-height: 1.5;
      margin-bottom: 1.2rem;
    }

    .btn-outline-gold {
      border: 1px solid var(--gold);
      color: var(--gold);
      padding: 0.5rem 1.5rem;
      border-radius: 2rem;
      font-weight: 600;
      font-size: 0.85rem;
      display: inline-block;
      transition: all 0.3s;
    }

    .btn-outline-gold:hover {
      background: rgba(245,158,11,0.1);
      color: var(--gold-light);
    }

    .metric-row {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
      gap: 1.5rem;
      text-align: center;
    }

    .metric-item {
      background: var(--bg-card);
      border-radius: var(--radius-md);
      padding: 1.8rem 1rem;
      border: 1px solid rgba(245,158,11,0.15);
    }

    .metric-number {
      font-size: 2.6rem;
      font-weight: 900;
      background: linear-gradient(135deg, var(--gold-light), var(--gold));
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      background-clip: text;
    }

    .metric-label {
      color: var(--text-muted);
      font-size: 0.9rem;
      margin-top: 0.3rem;
    }

    .timeline-step {
      display: flex;
      gap: 1.5rem;
      align-items: flex-start;
      margin-bottom: 2rem;
    }

    .timeline-marker {
      min-width: 48px;
      width: 48px;
      height: 48px;
      border-radius: 50%;
      background: linear-gradient(135deg, var(--gold), var(--gold-dim));
      display: flex;
      align-items: center;
      justify-content: center;
      color: var(--bg-primary);
      font-weight: 900;
      font-size: 1.3rem;
      box-shadow: var(--shadow-gold);
    }

    .post-list {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
      gap: 1.5rem;
    }

    .post-card {
      background: var(--bg-card);
      border-radius: var(--radius-md);
      overflow: hidden;
      border: 1px solid rgba(245,158,11,0.2);
      transition: all 0.3s;
    }

    .post-card:hover {
      border-color: var(--gold);
      box-shadow: var(--shadow-gold);
    }

    .post-card img {
      height: 180px;
      object-fit: cover;
    }

    .post-card-body {
      padding: 1.2rem;
    }

    .post-card-body h4 {
      font-size: 1.1rem;
      color: var(--white);
      margin-bottom: 0.5rem;
      line-height: 1.4;
    }

    .post-card-body .post-date {
      font-size: 0.8rem;
      color: var(--olive);
    }

    .faq-item {
      background: var(--bg-card);
      border-radius: var(--radius-md);
      padding: 1.2rem 1.5rem;
      margin-bottom: 1rem;
      border-left: 3px solid var(--gold);
    }

    .faq-item h4 {
      color: var(--gold-light);
      font-size: 1.05rem;
      margin-bottom: 0.4rem;
    }

    .faq-item p {
      color: var(--text-muted);
      font-size: 0.9rem;
    }

    .cta-strip {
      background: linear-gradient(135deg, var(--bg-secondary), #062718);
      border-top: 1px solid rgba(245,158,11,0.35);
      border-bottom: 1px solid rgba(245,158,11,0.35);
      padding: 2.5rem 0;
      text-align: center;
    }

    .site-footer {
      background: #020D09;
      padding: 2.5rem 0 1.5rem;
      border-top: 1px solid rgba(245,158,11,0.2);
    }

    .footer-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
      gap: 2rem;
      margin-bottom: 2rem;
    }

    .footer-col h4 {
      color: var(--gold-light);
      margin-bottom: 0.8rem;
      font-size: 1.1rem;
    }

    .footer-col p {
      color: var(--text-muted);
      font-size: 0.9rem;
    }

    .footer-col a {
      display: block;
      color: var(--text-muted);
      font-size: 0.9rem;
      margin-bottom: 0.5rem;
    }

    .footer-col a:hover {
      color: var(--gold);
    }

    .footer-bottom {
      text-align: center;
      font-size: 0.85rem;
      color: var(--olive);
      border-top: 1px solid rgba(255,255,255,0.05);
      padding-top: 1.2rem;
    }

    .fab-left {
      position: fixed;
      left: 1rem;
      bottom: 6rem;
      z-index: 50;
    }

    .fab-btn {
      width: 56px;
      height: 56px;
      border-radius: 50%;
      background: linear-gradient(135deg, var(--gold-light), var(--gold));
      border: 2px solid var(--gold);
      box-shadow: 0 6px 25px rgba(245,158,11,0.35);
      display: flex;
      align-items: center;
      justify-content: center;
      color: var(--bg-primary);
      font-size: 1.6rem;
      transition: all 0.3s;
      cursor: pointer;
      opacity: 0.8;
    }

    .fab-btn:hover {
      transform: scale(1.1);
      opacity: 1;
    }

    @media (max-width: 1024px) {
      .main-nav {
        gap: 1.2rem;
      }
    }

    @media (max-width: 768px) {
      .main-nav {
        display: none;
      }

      .hamburger {
        display: block;
      }

      .mobile-menu.active {
        display: flex;
      }

      .header-actions {
        gap: 0.5rem;
      }

      .hero-cat-content h1 {
        font-size: 1.8rem;
      }
    }

    @media (max-width: 520px) {
      .header-inner {
        flex-wrap: wrap;
      }

      .mobile-menu a {
        font-size: 0.9rem;
      }

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