/* roulang page: index */
:root {
      --bg-primary: #121212;
      --bg-secondary: #1C1C1E;
      --bg-tertiary: #232327;
      --accent-gold: #C5A059;
      --accent-amber: #FFBF00;
      --accent-muted: #D4AC0D;
      --text-white: #F5F5F7;
      --text-muted: #A6A6AE;
      --text-gold: #D4AC0D;
      --border-dark: #2C2C30;
      --border-gold: rgba(197, 160, 89, 0.3);
      --shadow-gold: 0 4px 20px rgba(197, 160, 89, 0.15);
      --shadow-deep: 0 12px 40px rgba(0,0,0,0.5);
      --radius-sm: 8px;
      --radius-md: 14px;
      --radius-lg: 20px;
      --radius-xl: 28px;
      --spacing-xs: 8px;
      --spacing-sm: 16px;
      --spacing-md: 24px;
      --spacing-lg: 40px;
      --spacing-xl: 64px;
      --spacing-2xl: 88px;
      --font-primary: 'Be Vietnam Pro', ui-sans-serif, system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
      --transition-base: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
      --transition-smooth: 0.4s cubic-bezier(0.16, 1, 0.3, 1);
    }

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

    html {
      scroll-behavior: smooth;
      -webkit-text-size-adjust: 100%;
      -webkit-font-smoothing: antialiased;
      -moz-osx-font-smoothing: grayscale;
    }

    body {
      font-family: var(--font-primary);
      background-color: var(--bg-primary);
      color: var(--text-white);
      line-height: 1.6;
      min-height: 100vh;
      display: flex;
      flex-direction: column;
      overflow-x: hidden;
    }

    a {
      color: inherit;
      text-decoration: none;
      transition: color var(--transition-base);
    }

    a:focus-visible,
    button:focus-visible,
    input:focus-visible,
    summary:focus-visible {
      outline: 2px solid var(--accent-amber);
      outline-offset: 3px;
      border-radius: 4px;
    }

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

    button {
      font-family: inherit;
      cursor: pointer;
      border: none;
      background: none;
      color: inherit;
    }

    .container {
      width: 100%;
      max-width: 1200px;
      margin: 0 auto;
      padding: 0 var(--spacing-sm);
    }

    @media (min-width: 768px) {
      .container {
        padding: 0 var(--spacing-md);
      }
    }

    @media (min-width: 1024px) {
      .container {
        padding: 0 var(--spacing-lg);
      }
    }

    /* ===== Header / Navigation ===== */
    .site-header {
      position: fixed;
      top: 0;
      left: 0;
      right: 0;
      z-index: 100;
      background: rgba(18, 18, 18, 0.88);
      backdrop-filter: blur(20px);
      -webkit-backdrop-filter: blur(20px);
      border-bottom: 1px solid var(--border-dark);
      transition: box-shadow var(--transition-base), background var(--transition-base);
    }

    .site-header.scrolled {
      background: rgba(18, 18, 18, 0.96);
      box-shadow: 0 4px 24px rgba(0, 0, 0, 0.45);
      border-bottom-color: var(--border-gold);
    }

    .nav-wrapper {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 68px;
      gap: var(--spacing-sm);
    }

    .nav-logo {
      display: flex;
      align-items: center;
      gap: 10px;
      flex-shrink: 0;
      font-weight: 800;
      font-size: 1.05rem;
      letter-spacing: -0.01em;
      color: var(--text-white);
      white-space: nowrap;
    }

    .nav-logo-icon {
      width: 36px;
      height: 36px;
      border-radius: 10px;
      background: linear-gradient(135deg, var(--accent-gold), var(--accent-amber));
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.2rem;
      color: #121212;
      flex-shrink: 0;
      box-shadow: 0 2px 12px rgba(255, 191, 0, 0.3);
    }

    .nav-logo span {
      color: var(--accent-amber);
    }

    .nav-links {
      display: none;
      align-items: center;
      gap: 6px;
      flex: 1;
      justify-content: center;
      list-style: none;
      padding: 0 8px;
    }

    .nav-links li {
      position: relative;
    }

    .nav-links a {
      display: block;
      padding: 8px 14px;
      font-size: 0.9rem;
      font-weight: 500;
      color: var(--text-muted);
      border-radius: 8px;
      transition: color var(--transition-base), background var(--transition-base);
      white-space: nowrap;
    }

    .nav-links a:hover {
      color: var(--text-white);
      background: rgba(255, 191, 0, 0.08);
    }

    .nav-links a.active {
      color: var(--accent-amber);
      background: rgba(197, 160, 89, 0.12);
      font-weight: 600;
    }

    .nav-links a.active::after {
      content: '';
      position: absolute;
      bottom: -2px;
      left: 50%;
      transform: translateX(-50%);
      width: 20px;
      height: 2px;
      background: var(--accent-amber);
      border-radius: 2px;
    }

    .nav-auth {
      display: flex;
      align-items: center;
      gap: 10px;
      flex-shrink: 0;
    }

    .btn-login {
      padding: 8px 16px;
      font-size: 0.88rem;
      font-weight: 600;
      color: var(--text-white);
      border-radius: 8px;
      border: 1px solid var(--border-dark);
      background: transparent;
      transition: all var(--transition-base);
      white-space: nowrap;
    }

    .btn-login:hover {
      border-color: var(--accent-gold);
      color: var(--accent-amber);
      background: rgba(197, 160, 89, 0.08);
    }

    .btn-signup {
      padding: 8px 20px;
      font-size: 0.88rem;
      font-weight: 700;
      color: #121212;
      border-radius: 8px;
      background: linear-gradient(135deg, var(--accent-gold), var(--accent-amber));
      box-shadow: 0 2px 14px rgba(255, 191, 0, 0.35);
      transition: all var(--transition-base);
      white-space: nowrap;
    }

    .btn-signup:hover {
      transform: translateY(-2px);
      box-shadow: 0 6px 24px rgba(255, 191, 0, 0.5);
    }

    .btn-signup:active {
      transform: translateY(0);
      box-shadow: 0 2px 8px rgba(255, 191, 0, 0.3);
    }

    .nav-toggle {
      display: flex;
      align-items: center;
      justify-content: center;
      width: 42px;
      height: 42px;
      border-radius: 10px;
      background: var(--bg-secondary);
      border: 1px solid var(--border-dark);
      color: var(--text-white);
      transition: all var(--transition-base);
      flex-shrink: 0;
    }

    .nav-toggle:hover {
      border-color: var(--accent-gold);
    }

    .mobile-menu {
      display: none;
      flex-direction: column;
      gap: 4px;
      padding: var(--spacing-sm);
      background: rgba(18, 18, 18, 0.98);
      border-top: 1px solid var(--border-dark);
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.35s cubic-bezier(0.4, 0, 0.2, 1), padding 0.25s ease;
    }

    .mobile-menu.open {
      max-height: 340px;
      padding: var(--spacing-sm);
      display: flex;
    }

    .mobile-menu a {
      display: block;
      padding: 12px 14px;
      font-size: 0.95rem;
      font-weight: 500;
      color: var(--text-muted);
      border-radius: 8px;
      transition: all var(--transition-base);
    }

    .mobile-menu a:hover {
      color: var(--accent-amber);
      background: rgba(197, 160, 89, 0.1);
    }

    .mobile-menu a.active {
      color: var(--accent-amber);
      background: rgba(197, 160, 89, 0.15);
      font-weight: 600;
    }

    @media (min-width: 1024px) {
      .nav-links {
        display: flex;
      }
      .nav-toggle {
        display: none;
      }
      .mobile-menu {
        display: none !important;
      }
    }

    @media (max-width: 1023px) {
      .nav-links {
        display: none;
      }
      .nav-auth .btn-login,
      .nav-auth .btn-signup {
        padding: 6px 12px;
        font-size: 0.8rem;
      }
      .nav-toggle {
        display: flex;
      }
    }

    @media (max-width: 520px) {
      .nav-wrapper {
        height: 60px;
        gap: 6px;
      }
      .nav-logo {
        font-size: 0.85rem;
        gap: 6px;
      }
      .nav-logo-icon {
        width: 28px;
        height: 28px;
        font-size: 0.95rem;
        border-radius: 8px;
      }
      .btn-login {
        padding: 5px 10px;
        font-size: 0.75rem;
      }
      .btn-signup {
        padding: 5px 14px;
        font-size: 0.75rem;
      }
      .nav-toggle {
        width: 36px;
        height: 36px;
      }
    }

    /* ===== Hero Section ===== */
    .hero-section {
      padding-top: 110px;
      padding-bottom: var(--spacing-xl);
      position: relative;
      background: radial-gradient(ellipse at 50% 0%, rgba(197, 160, 89, 0.08) 0%, transparent 55%),
                  radial-gradient(ellipse at 80% 30%, rgba(255, 191, 0, 0.04) 0%, transparent 45%),
                  var(--bg-primary);
      overflow: hidden;
    }

    .hero-section::before {
      content: '';
      position: absolute;
      top: 0;
      left: 0;
      right: 0;
      bottom: 0;
      background-image: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23C5A059' fill-opacity='0.04'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
      pointer-events: none;
    }

    .hero-content {
      position: relative;
      z-index: 1;
      max-width: 900px;
    }

    .hero-badge {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 6px 16px;
      font-size: 0.8rem;
      font-weight: 600;
      color: var(--accent-amber);
      background: rgba(197, 160, 89, 0.1);
      border: 1px solid var(--border-gold);
      border-radius: 50px;
      margin-bottom: var(--spacing-md);
      letter-spacing: 0.02em;
    }

    .hero-badge-dot {
      width: 8px;
      height: 8px;
      border-radius: 50%;
      background: #4ADE80;
      box-shadow: 0 0 10px rgba(74, 222, 128, 0.6);
      animation: pulse-dot 1.8s ease-in-out infinite;
    }

    @keyframes pulse-dot {
      0%, 100% { opacity: 1; transform: scale(1); }
      50% { opacity: 0.5; transform: scale(1.4); }
    }

    .hero-title {
      font-size: 2rem;
      font-weight: 900;
      line-height: 1.15;
      letter-spacing: -0.03em;
      color: var(--text-white);
      margin-bottom: var(--spacing-md);
      max-width: 800px;
    }

    .hero-title .highlight {
      background: linear-gradient(135deg, var(--accent-gold), var(--accent-amber));
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      background-clip: text;
    }

    .hero-desc {
      font-size: 1.02rem;
      line-height: 1.65;
      color: var(--text-muted);
      max-width: 680px;
      margin-bottom: var(--spacing-lg);
      font-weight: 400;
    }

    .hero-cta-row {
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      gap: var(--spacing-sm);
      margin-bottom: var(--spacing-lg);
    }

    .btn-primary-hero {
      display: inline-flex;
      align-items: center;
      gap: 10px;
      padding: 14px 32px;
      font-size: 1rem;
      font-weight: 700;
      color: #121212;
      background: linear-gradient(135deg, var(--accent-gold), var(--accent-amber));
      border-radius: 12px;
      box-shadow: 0 4px 20px rgba(255, 191, 0, 0.4);
      transition: all var(--transition-base);
    }

    .btn-primary-hero:hover {
      transform: translateY(-3px);
      box-shadow: 0 8px 32px rgba(255, 191, 0, 0.55);
    }

    .btn-primary-hero:active {
      transform: translateY(-1px);
    }

    .btn-secondary-hero {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 14px 24px;
      font-size: 0.95rem;
      font-weight: 600;
      color: var(--text-white);
      background: transparent;
      border: 1px solid var(--border-dark);
      border-radius: 12px;
      transition: all var(--transition-base);
    }

    .btn-secondary-hero:hover {
      border-color: var(--accent-gold);
      color: var(--accent-amber);
      background: rgba(197, 160, 89, 0.06);
    }

    .hero-status-bar {
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      gap: var(--spacing-sm) var(--spacing-lg);
      margin-top: var(--spacing-md);
    }

    .hero-status-item {
      display: flex;
      align-items: center;
      gap: 8px;
      font-size: 0.85rem;
      color: var(--text-muted);
      padding: 6px 14px;
      background: rgba(30, 30, 34, 0.7);
      border: 1px solid var(--border-dark);
      border-radius: 50px;
      backdrop-filter: blur(8px);
    }

    .hero-status-item strong {
      color: var(--accent-amber);
      font-weight: 700;
    }

    .hero-status-dot {
      width: 6px;
      height: 6px;
      border-radius: 50%;
      background: #4ADE80;
      box-shadow: 0 0 6px rgba(74, 222, 128, 0.5);
      animation: pulse-dot 2s ease-in-out infinite;
    }

    /* Icon matrix */
    .hero-icon-matrix {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: var(--spacing-sm);
      margin-top: var(--spacing-lg);
      max-width: 560px;
    }

    @media (min-width: 640px) {
      .hero-icon-matrix {
        grid-template-columns: repeat(4, 1fr);
      }
    }

    .hero-icon-cell {
      display: flex;
      flex-direction: column;
      align-items: flex-start;
      gap: 6px;
      padding: 14px 16px;
      background: rgba(28, 28, 30, 0.8);
      backdrop-filter: blur(6px);
      border: 1px solid var(--border-dark);
      border-radius: var(--radius-md);
      transition: all var(--transition-base);
    }

    .hero-icon-cell:hover {
      border-color: var(--border-gold);
      box-shadow: var(--shadow-gold);
      transform: translateY(-2px);
    }

    .hero-icon-cell .icon-wrap {
      width: 36px;
      height: 36px;
      border-radius: 10px;
      background: rgba(197, 160, 89, 0.12);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.1rem;
      color: var(--accent-amber);
      flex-shrink: 0;
    }

    .hero-icon-cell span {
      font-size: 0.78rem;
      font-weight: 600;
      color: var(--text-white);
      line-height: 1.35;
    }

    .hero-icon-cell small {
      font-size: 0.7rem;
      color: var(--text-muted);
      font-weight: 400;
    }

    @media (max-width: 520px) {
      .hero-title {
        font-size: 1.5rem;
      }
      .hero-desc {
        font-size: 0.92rem;
      }
      .btn-primary-hero,
      .btn-secondary-hero {
        padding: 11px 20px;
        font-size: 0.88rem;
      }
      .hero-icon-matrix {
        grid-template-columns: repeat(2, 1fr);
        gap: 8px;
      }
      .hero-icon-cell {
        padding: 10px 12px;
      }
    }

    /* ===== Section Base ===== */
    .section {
      padding: var(--spacing-xl) 0;
      position: relative;
    }

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

    .section-heading {
      margin-bottom: var(--spacing-lg);
    }

    .section-label {
      display: inline-block;
      font-size: 0.75rem;
      font-weight: 700;
      text-transform: uppercase;
      letter-spacing: 0.08em;
      color: var(--accent-amber);
      margin-bottom: 10px;
    }

    .section-title {
      font-size: 1.6rem;
      font-weight: 800;
      line-height: 1.25;
      letter-spacing: -0.02em;
      color: var(--text-white);
      margin-bottom: 12px;
      max-width: 700px;
    }

    .section-desc {
      font-size: 0.95rem;
      line-height: 1.65;
      color: var(--text-muted);
      max-width: 640px;
         }

    /* ===== Buttons & Badges ===== */
    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      padding: 11px 22px;
      font-size: 0.88rem;
      font-weight: 600;
      border-radius: 10px;
      transition: all var(--transition-base);
      cursor: pointer;
      white-space: nowrap;
    }

    .btn-primary {
      background: linear-gradient(135deg, var(--accent-gold), var(--accent-amber));
      color: #121212;
      font-weight: 700;
      box-shadow: 0 4px 16px rgba(255, 191, 0, 0.32);
    }

    .btn-primary:hover {
      transform: translateY(-2px);
      box-shadow: 0 6px 24px rgba(255, 191, 0, 0.45);
    }

    .btn-primary:active {
      transform: translateY(0);
      box-shadow: 0 2px 8px rgba(255, 191, 0, 0.28);
    }

    .btn-outline {
      background: transparent;
      color: var(--text-white);
      border: 1px solid var(--border-dark);
    }

    .btn-outline:hover {
      border-color: var(--accent-gold);
      color: var(--accent-amber);
      background: rgba(197, 160, 89, 0.06);
    }

    .btn-outline-gold {
      background: transparent;
      color: var(--accent-amber);
      border: 1px solid var(--border-gold);
    }

    .btn-outline-gold:hover {
      background: rgba(197, 160, 89, 0.08);
      border-color: var(--accent-gold);
    }

    .btn-lg {
      padding: 14px 30px;
      font-size: 0.98rem;
      border-radius: 12px;
    }

    .btn-sm {
      padding: 8px 16px;
      font-size: 0.8rem;
      border-radius: 8px;
    }

    .badge {
      display: inline-flex;
      align-items: center;
      gap: 4px;
      padding: 4px 10px;
      font-size: 0.7rem;
      font-weight: 700;
      letter-spacing: 0.04em;
      border-radius: 6px;
      text-transform: uppercase;
      line-height: 1.4;
    }

    .badge-hot {
      background: rgba(211, 47, 47, 0.16);
      color: #FF6B6B;
      border: 1px solid rgba(211, 47, 47, 0.3);
    }

    .badge-new {
      background: rgba(74, 222, 128, 0.14);
      color: #4ADE80;
      border: 1px solid rgba(74, 222, 128, 0.3);
    }

    .badge-gold {
      background: rgba(255, 191, 0, 0.14);
      color: var(--accent-amber);
      border: 1px solid var(--border-gold);
    }

    /* ===== Grid & Cards ===== */
    .grid {
      display: grid;
      gap: var(--spacing-sm);
    }

    .grid-2 { grid-template-columns: repeat(1, 1fr); }
    .grid-3 { grid-template-columns: repeat(1, 1fr); }
    .grid-4 { grid-template-columns: repeat(1, 1fr); }

    @media (min-width: 640px) {
      .grid-2 { grid-template-columns: repeat(2, 1fr); }
      .grid-3 { grid-template-columns: repeat(2, 1fr); }
      .grid-4 { grid-template-columns: repeat(2, 1fr); }
    }

    @media (min-width: 1024px) {
      .grid-2 { grid-template-columns: repeat(2, 1fr); }
      .grid-3 { grid-template-columns: repeat(3, 1fr); }
      .grid-4 { grid-template-columns: repeat(4, 1fr); }
    }

    .card {
      background: var(--bg-secondary);
      border: 1px solid var(--border-dark);
      border-radius: var(--radius-md);
      padding: var(--spacing-sm);
      transition: all var(--transition-smooth);
      position: relative;
      overflow: hidden;
    }

    .card:hover {
      border-color: var(--border-gold);
      box-shadow: var(--shadow-gold);
      transform: translateY(-4px);
    }

    .card-glass {
      background: rgba(28, 28, 30, 0.7);
      backdrop-filter: blur(12px);
      -webkit-backdrop-filter: blur(12px);
      border: 1px solid rgba(197, 160, 89, 0.15);
      border-radius: var(--radius-md);
      padding: var(--spacing-sm);
      transition: all var(--transition-base);
    }

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

    .card-flat {
      background: transparent;
      border: none;
      padding: 0;
    }

    .card-divider {
      width: 100%;
      height: 1px;
      background: var(--border-dark);
      margin: var(--spacing-sm) 0;
    }

    /* ===== Feature Cards / Icon Feature ===== */
    .feature-item {
      display: flex;
      gap: 14px;
      align-items: flex-start;
      padding: var(--spacing-sm);
      transition: all var(--transition-base);
    }

    .feature-icon {
      width: 44px;
      height: 44px;
      border-radius: 12px;
      background: rgba(197, 160, 89, 0.1);
      display: flex;
      align-items: center;
      justify-content: center;
      color: var(--accent-amber);
      flex-shrink: 0;
      font-size: 1.15rem;
    }

    .feature-content h4 {
      font-size: 0.95rem;
      font-weight: 700;
      color: var(--text-white);
      margin-bottom: 4px;
      line-height: 1.4;
    }

    .feature-content p {
      font-size: 0.84rem;
      color: var(--text-muted);
      line-height: 1.55;
    }

    /* ===== Stat / Data Blocks ===== */
    .stat-block {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: var(--spacing-sm);
      margin-top: var(--spacing-lg);
    }

    @media (min-width: 768px) {
      .stat-block {
        grid-template-columns: repeat(4, 1fr);
      }
    }

    .stat-card {
      background: var(--bg-secondary);
      border: 1px solid var(--border-dark);
      border-radius: var(--radius-md);
      padding: var(--spacing-md);
      text-align: center;
      transition: all var(--transition-base);
    }

    .stat-card:hover {
      border-color: var(--border-gold);
    }

    .stat-number {
      font-size: 1.8rem;
      font-weight: 900;
      color: var(--accent-amber);
      letter-spacing: -0.02em;
    }

    .stat-label {
      font-size: 0.8rem;
      color: var(--text-muted);
      margin-top: 4px;
      font-weight: 500;
    }

    /* ===== List Items ===== */
    .list-check {
      list-style: none;
      padding: 0;
      display: flex;
      flex-direction: column;
      gap: 10px;
    }

    .list-check li {
      display: flex;
      gap: 10px;
      align-items: flex-start;
      font-size: 0.9rem;
      color: var(--text-muted);
      line-height: 1.55;
    }

    .list-check .check-icon {
      width: 18px;
      height: 18px;
      border-radius: 50%;
      background: rgba(74, 222, 128, 0.16);
      color: #4ADE80;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 0.7rem;
      flex-shrink: 0;
      margin-top: 2px;
    }

    /* ===== Rank List ===== */
    .rank-list {
      display: flex;
      flex-direction: column;
      gap: 10px;
    }

    .rank-item {
      display: flex;
      align-items: center;
      gap: 14px;
      background: var(--bg-secondary);
      border: 1px solid var(--border-dark);
      border-radius: var(--radius-md);
      padding: 12px 16px;
      transition: all var(--transition-base);
    }

    .rank-item:hover {
      border-color: var(--border-gold);
      background: rgba(28, 28, 30, 0.9);
    }

    .rank-number {
      width: 36px;
      height: 36px;
      border-radius: 10px;
      background: rgba(197, 160, 89, 0.1);
      color: var(--accent-amber);
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 800;
      font-size: 0.95rem;
      flex-shrink: 0;
    }

    .rank-number.first {
      background: linear-gradient(135deg, var(--accent-gold), var(--accent-amber));
      color: #121212;
      box-shadow: 0 2px 12px rgba(255, 191, 0, 0.35);
    }

    .rank-content {
      flex: 1;
      min-width: 0;
    }

    .rank-content h4 {
      font-size: 0.92rem;
      font-weight: 700;
      color: var(--text-white);
      margin-bottom: 2px;
    }

    .rank-content p {
      font-size: 0.82rem;
      color: var(--text-muted);
      white-space: nowrap;
      overflow: hidden;
      text-overflow: ellipsis;
    }

    .rank-tag {
      font-size: 0.78rem;
      font-weight: 700;
      color: var(--accent-amber);
      background: rgba(197, 160, 89, 0.1);
      padding: 5px 12px;
      border-radius: 6px;
      flex-shrink: 0;
    }

    /* ===== App Download Card ===== */
    .download-card {
      background: linear-gradient(135deg, rgba(197, 160, 89, 0.08) 0%, rgba(255, 191, 0, 0.04) 50%, rgba(28, 28, 30, 0.6) 100%);
      border: 1px solid var(--border-gold);
      border-radius: var(--radius-lg);
      padding: var(--spacing-md);
      position: relative;
      overflow: hidden;
    }

    .download-card::after {
      content: '';
      position: absolute;
      top: -50%;
      right: -20%;
      width: 300px;
      height: 300px;
      background: radial-gradient(circle, rgba(255, 191, 0, 0.12) 0%, transparent 70%);
      border-radius: 50%;
      pointer-events: none;
    }

    .download-title {
      font-size: 1.2rem;
      font-weight: 800;
      color: var(--text-white);
      margin-bottom: 10px;
      position: relative;
      z-index: 1;
    }

    .download-desc {
      font-size: 0.9rem;
      color: var(--text-muted);
      margin-bottom: var(--spacing-sm);
      position: relative;
      z-index: 1;
    }

    .download-buttons {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      position: relative;
      z-index: 1;
    }

    .store-btn {
      display: inline-flex;
      align-items: center;
      gap: 10px;
      padding: 10px 20px;
      background: var(--bg-primary);
      border: 1px solid var(--border-dark);
      border-radius: 10px;
      transition: all var(--transition-base);
      cursor: pointer;
    }

    .store-btn:hover {
      border-color: var(--accent-gold);
      box-shadow: var(--shadow-gold);
      transform: translateY(-2px);
    }

    .store-btn .store-icon {
      width: 24px;
      height: 24px;
      display: flex;
      align-items: center;
      justify-content: center;
      color: var(--accent-amber);
      font-size: 1.2rem;
    }

    .store-btn .store-text {
      display: flex;
      flex-direction: column;
      text-align: left;
    }

    .store-btn .store-text small {
      font-size: 0.68rem;
      color: var(--text-muted);
      font-weight: 400;
    }

    .store-btn .store-text strong {
      font-size: 0.88rem;
      color: var(--text-white);
      font-weight: 700;
    }

    /* ===== News / CMS List ===== */
    .news-list {
      display: flex;
      flex-direction: column;
      gap: 6px;
    }

    .news-item {
      display: flex;
      align-items: flex-start;
      gap: 14px;
      padding: 14px 16px;
      background: var(--bg-secondary);
      border: 1px solid var(--border-dark);
      border-radius: var(--radius-md);
      transition: all var(--transition-base);
    }

    .news-item:hover {
      border-color: var(--border-gold);
      background: rgba(28, 28, 30, 0.9);
      transform: translateX(4px);
    }

    .news-item .news-date {
      font-size: 0.72rem;
      color: var(--accent-amber);
      font-weight: 600;
      min-width: 44px;
      padding-top: 2px;
      flex-shrink: 0;
    }

    .news-item .news-content {
      flex: 1;
      min-width: 0;
    }

    .news-item .news-title {
      font-size: 0.92rem;
      font-weight: 700;
      color: var(--text-white);
      line-height: 1.45;
      margin-bottom: 4px;
    }

    .news-item .news-title a:hover {
      color: var(--accent-amber);
    }

    .news-item .news-excerpt {
      font-size: 0.82rem;
      color: var(--text-muted);
      line-height: 1.55;
    }

    .news-layout {
      display: grid;
      grid-template-columns: 1fr;
      gap: var(--spacing-md);
    }

    @media (min-width: 992px) {
      .news-layout {
        grid-template-columns: 2fr 1fr;
        align-items: start;
      }
    }

    .news-sidebar {
      background: var(--bg-secondary);
      border: 1px solid var(--border-dark);
      border-radius: var(--radius-md);
      padding: var(--spacing-sm);
    }

    .news-sidebar-title {
      font-size: 0.85rem;
      font-weight: 700;
      color: var(--text-white);
      margin-bottom: 10px;
      padding-bottom: 8px;
      border-bottom: 1px solid var(--border-dark);
    }

    .news-sidebar-list {
      display: flex;
      flex-direction: column;
      gap: 4px;
      list-style: none;
    }

    .news-sidebar-list li a {
      display: block;
      padding: 8px 10px;
      font-size: 0.84rem;
      color: var(--text-muted);
      border-radius: 6px;
      transition: all var(--transition-base);
      line-height: 1.4;
    }

    .news-sidebar-list li a:hover {
      color: var(--accent-amber);
      background: rgba(197, 160, 89, 0.08);
    }

    /* ===== FAQ ===== */
    .faq-list {
      display: flex;
      flex-direction: column;
      gap: 10px;
    }

    .faq-item {
      background: var(--bg-secondary);
      border: 1px solid var(--border-dark);
      border-radius: var(--radius-md);
      overflow: hidden;
      transition: all var(--transition-base);
    }

    .faq-item:hover {
      border-color: var(--border-gold);
    }

    .faq-question {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 14px;
      padding: 16px 20px;
      cursor: pointer;
      font-size: 0.92rem;
      font-weight: 600;
      color: var(--text-white);
      transition: all var(--transition-base);
      user-select: none;
    }

    .faq-question:hover {
      color: var(--accent-amber);
    }

    .faq-question .faq-icon {
      color: var(--accent-amber);
      font-size: 0.8rem;
      transition: transform var(--transition-base);
      flex-shrink: 0;
    }

    .faq-answer {
      padding: 0 20px;
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1), padding 0.3s ease;
      font-size: 0.86rem;
      color: var(--text-muted);
      line-height: 1.65;
    }

    .faq-item.open .faq-answer {
      max-height: 260px;
      padding: 0 20px 18px;
    }

    .faq-item.open .faq-icon {
      transform: rotate(180deg);
    }

    /* ===== CTA Section ===== */
    .cta-section {
      background: linear-gradient(135deg, rgba(197, 160, 89, 0.1) 0%, rgba(18, 18, 18, 0.9) 50%, rgba(255, 191, 0, 0.05) 100%);
      border-top: 1px solid var(--border-gold);
      border-bottom: 1px solid var(--border-gold);
      padding: var(--spacing-xl) 0;
      position: relative;
    }

    .cta-content {
      display: flex;
      flex-direction: column;
      align-items: center;
      text-align: center;
      gap: var(--spacing-sm);
      max-width: 640px;
      margin: 0 auto;
    }

    .cta-title {
      font-size: 1.7rem;
      font-weight: 900;
      color: var(--text-white);
      letter-spacing: -0.02em;
      line-height: 1.2;
    }

    .cta-desc {
      font-size: 0.95rem;
      color: var(--text-muted);
      margin-top: -4px;
    }

    /* ===== Footer ===== */
    .site-footer {
      background: var(--bg-secondary);
      border-top: 1px solid var(--border-dark);
      padding: var(--spacing-xl) 0 var(--spacing-lg);
      margin-top: auto;
    }

    .footer-grid {
      display: grid;
      grid-template-columns: 1fr;
      gap: var(--spacing-lg);
      margin-bottom: var(--spacing-lg);
    }

    @media (min-width: 768px) {
      .footer-grid {
        grid-template-columns: 2fr 1fr 1fr 1.2fr;
      }
    }

    .footer-brand {
      display: flex;
      flex-direction: column;
      gap: 12px;
    }

    .footer-brand .nav-logo {
      font-size: 1.05rem;
    }

    .footer-brand p {
      font-size: 0.85rem;
      color: var(--text-muted);
      line-height: 1.6;
      max-width: 320px;
    }

    .footer-col h4 {
      font-size: 0.88rem;
      font-weight: 700;
      color: var(--text-white);
      margin-bottom: 12px;
      text-transform: uppercase;
      letter-spacing: 0.04em;
    }

    .footer-col ul {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 8px;
    }

    .footer-col ul a {
      font-size: 0.84rem;
      color: var(--text-muted);
      transition: all var(--transition-base);
    }

    .footer-col ul a:hover {
      color: var(--accent-amber);
      padding-left: 4px;
    }

    .footer-bottom {
      border-top: 1px solid var(--border-dark);
      padding-top: var(--spacing-md);
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      justify-content: space-between;
      gap: 12px;
    }

    .footer-copyright {
      font-size: 0.78rem;
      color: var(--text-muted);
    }

    .footer-badges {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      align-items: center;
    }

    .footer-badge {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      font-size: 0.72rem;
      font-weight: 600;
      color: var(--text-muted);
      padding: 5px 12px;
      border: 1px solid var(--border-dark);
      border-radius: 6px;
    }

    .footer-badge.gold {
      color: var(--accent-amber);
      border-color: var(--border-gold);
      background: rgba(197, 160, 89, 0.06);
    }

    /* ===== FAB ===== */
    .fab-left {
      position: fixed;
      left: 16px;
      bottom: 96px;
      z-index: 50;
      width: 52px;
      height: 52px;
      border-radius: 50%;
      background: rgba(18, 18, 18, 0.85);
      backdrop-filter: blur(16px);
      -webkit-backdrop-filter: blur(16px);
      border: 2px solid var(--accent-gold);
      box-shadow: 0 4px 20px rgba(255, 215, 0, 0.25), inset 0 0 12px rgba(197, 160, 89, 0.2);
      display: flex;
      align-items: center;
      justify-content: center;
      color: var(--accent-amber);
      font-size: 1.3rem;
      cursor: pointer;
      transition: all var(--transition-smooth);
      animation: float-breathe 3s ease-in-out infinite;
      min-width: 52px;
      min-height: 52px;
    }

    .fab-left:hover {
      transform: scale(1.12);
      opacity: 1;
      box-shadow: 0 6px 28px rgba(255, 215, 0, 0.4), inset 0 0 14px rgba(197, 160, 89, 0.3);
      animation: none;
    }

    .fab-left:active {
      transform: scale(0.95) translateY(2px);
    }

    .fab-left .fab-dot {
      position: absolute;
      top: -2px;
      right: -2px;
      width: 12px;
      height: 12px;
      border-radius: 50%;
      background: #FF2D55;
      border: 2px solid var(--bg-primary);
      box-shadow: 0 0 10px rgba(255, 45, 85, 0.6);
      animation: blink-dot 1.6s ease-in-out infinite;
    }

    @keyframes float-breathe {
      0%, 100% { opacity: 0.7; transform: translateY(0); }
      50% { opacity: 1; transform: translateY(-6px); }
    }

    @keyframes blink-dot {
      0%, 100% { opacity: 1; }
      50% { opacity: 0.4; }
    }

    @media (max-width: 768px) {
      .fab-left {
        width: 48px;
        height: 48px;
        min-width: 48px;
        min-height: 48px;
        left: 12px;
        bottom: 76px;
        font-size: 1.15rem;
      }
    }

    /* ===== Progress Bar ===== */
    .progress-wrap {
      margin-top: 12px;
    }

    .progress-label {
      display: flex;
      justify-content: space-between;
      font-size: 0.8rem;
      color: var(--text-muted);
      margin-bottom: 6px;
      font-weight: 500;
    }

    .progress-bar-track {
      width: 100%;
      height: 8px;
      background: var(--border-dark);
      border-radius: 50px;
      overflow: hidden;
    }

    .progress-bar-fill {
      height: 100%;
      background: linear-gradient(90deg, var(--accent-gold), var(--accent-amber));
      border-radius: 50px;
      transition: width 0.6s cubic-bezier(0.4, 0, 0.2, 1);
      box-shadow: 0 0 12px rgba(255, 191, 0, 0.4);
    }

    /* ===== Benefit/Premium Rows ===== */
    .benefit-row {
      display: grid;
      grid-template-columns: 1fr;
      gap: var(--spacing-md);
      margin-top: var(--spacing-md);
    }

    @media (min-width: 768px) {
      .benefit-row {
        grid-template-columns: 1fr 1fr;
        gap: var(--spacing-lg);
        align-items: center;
      }
    }

    .benefit-image {
      background-image: url('/assets/images/coverpic/cover-3.jpg');
      background-size: cover;
      background-position: center;
      min-height: 240px;
      border-radius: var(--radius-md);
      border: 1px solid var(--border-gold);
      position: relative;
      overflow: hidden;
    }

    .benefit-image::after {
      content: '';
      position: absolute;
      inset: 0;
      background: linear-gradient(135deg, rgba(18, 18, 18, 0.35) 0%, rgba(18, 18, 18, 0.15) 50%, rgba(197, 160, 89, 0.05) 100%);
      pointer-events: none;
    }

    .benefit-content h3 {
      font-size: 1.25rem;
      font-weight: 800;
      color: var(--text-white);
      margin-bottom: 10px;
      letter-spacing: -0.01em;
    }

    .benefit-content p {
      font-size: 0.9rem;
      color: var(--text-muted);
      line-height: 1.65;
      margin-bottom: 14px;
    }

    .benefit-content ul {
      display: flex;
      flex-direction: column;
      gap: 8px;
      list-style: none;
    }

    .benefit-content ul li {
      font-size: 0.88rem;
      color: var(--text-muted);
      padding-left: 20px;
      position: relative;
      line-height: 1.55;
    }

    .benefit-content ul li::before {
      content: '✓';
      position: absolute;
      left: 0;
      color: var(--accent-amber);
      font-weight: 700;
      font-size: 0.85rem;
    }

    /* ===== Comparison Table ===== */
    .comparison-table {
      width: 100%;
      border-collapse: separate;
      border-spacing: 0;
      border: 1px solid var(--border-dark);
      border-radius: var(--radius-md);
      overflow: hidden;
      font-size: 0.86rem;
    }

    .comparison-table th,
    .comparison-table td {
      padding: 14px 16px;
      text-align: left;
      border-bottom: 1px solid var(--border-dark);
      vertical-align: top;
    }

    .comparison-table th {
      background: rgba(197, 160, 89, 0.08);
      color: var(--text-white);
      font-weight: 700;
      font-size: 0.82rem;
      white-space: nowrap;
    }

    .comparison-table td {
      color: var(--text-muted);
    }

    .comparison-table tr:last-child td {
      border-bottom: none;
    }

    .comparison-table .highlight-cell {
      color: var(--accent-amber);
      font-weight: 600;
    }

    .comparison-wrap {
      overflow-x: auto;
    }

    /* ===== Scrollbar ===== */
    ::-webkit-scrollbar {
      width: 8px;
      height: 8px;
    }

    ::-webkit-scrollbar-track {
      background: var(--bg-primary);
    }

    ::-webkit-scrollbar-thumb {
      background: var(--border-dark);
      border-radius: 50px;
    }

    ::-webkit-scrollbar-thumb:hover {
      background: var(--accent-gold);
    }

    /* ===== Responsive Fine-tune ===== */
    @media (max-width: 520px) {
      .section {
        padding: var(--spacing-lg) 0;
      }
      .section-title {
        font-size: 1.3rem;
      }
      .section-desc {
        font-size: 0.86rem;
      }
      .cta-title {
        font-size: 1.35rem;
      }
      .stat-number {
        font-size: 1.4rem;
      }
      .card {
        padding: 12px;
      }
      .rank-item {
        padding: 10px 12px;
        gap: 10px;
      }
      .rank-number {
        width: 30px;
        height: 30px;
        font-size: 0.82rem;
      }
      .rank-content h4 {
        font-size: 0.84rem;
      }
      .rank-content p {
        font-size: 0.75rem;
      }
    }

/* roulang page: article */
:root {
      --bg-primary: #121212;
      --bg-secondary: #1C1C1E;
      --bg-tertiary: #232327;
      --accent-gold: #C5A059;
      --accent-amber: #FFBF00;
      --accent-muted: #D4AC0D;
      --text-white: #F5F5F7;
      --text-muted: #A6A6AE;
      --text-gold: #D4AC0D;
      --border-dark: #2C2C30;
      --border-gold: rgba(197, 160, 89, 0.3);
      --glass-bg: rgba(28, 28, 30, 0.72);
      --glass-border: rgba(255, 191, 0, 0.18);
      --shadow-gold: 0 4px 20px rgba(197, 160, 89, 0.15);
      --shadow-deep: 0 12px 40px rgba(0, 0, 0, 0.5);
      --radius-sm: 8px;
      --radius-md: 14px;
      --radius-lg: 20px;
      --radius-xl: 28px;
      --spacing-xs: 8px;
      --spacing-sm: 16px;
      --spacing-md: 24px;
      --spacing-lg: 40px;
      --spacing-xl: 64px;
      --spacing-2xl: 88px;
      --font-primary: 'Be Vietnam Pro', ui-sans-serif, system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
      --transition-base: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
      --transition-smooth: 0.4s cubic-bezier(0.16, 1, 0.3, 1);
    }

    html {
      scroll-behavior: smooth;
      -webkit-text-size-adjust: 100%;
      -webkit-font-smoothing: antialiased;
      -moz-osx-font-smoothing: grayscale;
    }

    body {
      font-family: var(--font-primary);
      background-color: var(--bg-primary);
      color: var(--text-white);
      line-height: 1.6;
      min-height: 100vh;
      display: flex;
      flex-direction: column;
      overflow-x: hidden;
    }

    a {
      color: inherit;
      text-decoration: none;
      transition: color var(--transition-base);
    }

    a:focus-visible,
    button:focus-visible,
    input:focus-visible,
    summary:focus-visible {
      outline: 2px solid var(--accent-amber);
      outline-offset: 3px;
      border-radius: 4px;
    }

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

    button {
      font-family: inherit;
      cursor: pointer;
      border: none;
      background: none;
      color: inherit;
    }

    ul, ol {
      list-style: none;
      padding: 0;
      margin: 0;
    }

    .container {
      width: 100%;
      max-width: 1200px;
      margin: 0 auto;
      padding: 0 var(--spacing-sm);
    }

    @media (min-width: 768px) {
      .container {
        padding: 0 var(--spacing-md);
      }
    }

    @media (min-width: 1024px) {
      .container {
        padding: 0 var(--spacing-lg);
      }
    }

    /* ===== Header / Navigation ===== */
    .site-header {
      position: fixed;
      top: 0;
      left: 0;
      right: 0;
      z-index: 100;
      background: rgba(18, 18, 18, 0.88);
      backdrop-filter: blur(20px);
      -webkit-backdrop-filter: blur(20px);
      border-bottom: 1px solid var(--border-dark);
      transition: box-shadow var(--transition-base), background var(--transition-base);
    }

    .site-header.scrolled {
      background: rgba(18, 18, 18, 0.96);
      box-shadow: 0 4px 24px rgba(0, 0, 0, 0.45);
      border-bottom-color: var(--border-gold);
    }

    .nav-wrapper {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 68px;
      gap: var(--spacing-sm);
    }

    .nav-logo {
      display: flex;
      align-items: center;
      gap: 10px;
      flex-shrink: 0;
      font-weight: 800;
      font-size: 1.05rem;
      letter-spacing: -0.01em;
      color: var(--text-white);
      white-space: nowrap;
    }

    .nav-logo-icon {
      width: 36px;
      height: 36px;
      border-radius: 10px;
      background: linear-gradient(135deg, var(--accent-gold), var(--accent-amber));
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.2rem;
      color: #121212;
      flex-shrink: 0;
      box-shadow: 0 2px 12px rgba(255, 191, 0, 0.3);
    }

    .nav-logo span {
      color: var(--accent-amber);
    }

    .nav-links {
      display: none;
      align-items: center;
      gap: 6px;
      flex: 1;
      justify-content: center;
      list-style: none;
      padding: 0 8px;
    }

    .nav-links li {
      position: relative;
    }

    .nav-links a {
      display: block;
      padding: 8px 14px;
      font-size: 0.9rem;
      font-weight: 500;
      color: var(--text-muted);
      border-radius: 8px;
      transition: color var(--transition-base), background var(--transition-base);
      white-space: nowrap;
    }

    .nav-links a:hover {
      color: var(--text-white);
      background: rgba(255, 191, 0, 0.08);
    }

    .nav-links a.active {
      color: var(--accent-amber);
      background: rgba(197, 160, 89, 0.12);
      font-weight: 600;
    }

    .nav-links a.active::after {
      content: '';
      position: absolute;
      bottom: -2px;
      left: 50%;
      transform: translateX(-50%);
      width: 20px;
      height: 2px;
      background: var(--accent-amber);
      border-radius: 2px;
    }

    .nav-auth {
      display: flex;
      align-items: center;
      gap: 10px;
      flex-shrink: 0;
    }

    .btn-login {
      padding: 8px 16px;
      font-size: 0.88rem;
      font-weight: 600;
      color: var(--text-white);
      border-radius: 8px;
      border: 1px solid var(--border-dark);
      background: transparent;
      transition: all var(--transition-base);
      white-space: nowrap;
    }

    .btn-login:hover {
      border-color: var(--accent-gold);
      color: var(--accent-amber);
      background: rgba(197, 160, 89, 0.08);
    }

    .btn-signup {
      padding: 8px 20px;
      font-size: 0.88rem;
      font-weight: 700;
      color: #121212;
      border-radius: 8px;
      background: linear-gradient(135deg, var(--accent-gold), var(--accent-amber));
      box-shadow: 0 2px 14px rgba(255, 191, 0, 0.35);
      transition: all var(--transition-base);
      white-space: nowrap;
    }

    .btn-signup:hover {
      transform: translateY(-2px);
      box-shadow: 0 6px 24px rgba(255, 191, 0, 0.5);
    }

    .btn-signup:active {
      transform: translateY(0);
      box-shadow: 0 2px 8px rgba(255, 191, 0, 0.3);
    }

    .nav-toggle {
      display: flex;
      align-items: center;
      justify-content: center;
      width: 42px;
      height: 42px;
      border-radius: 10px;
      background: var(--bg-secondary);
      border: 1px solid var(--border-dark);
      color: var(--text-white);
      transition: all var(--transition-base);
      flex-shrink: 0;
      font-size: 1.2rem;
    }

    .nav-toggle:hover {
      border-color: var(--accent-gold);
      color: var(--accent-amber);
    }

    .mobile-menu {
      display: none;
      border-top: 1px solid var(--border-dark);
      background: rgba(18, 18, 18, 0.97);
      padding: var(--spacing-sm) var(--spacing-sm) var(--spacing-md);
    }

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

    .mobile-menu ul {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 4px;
    }

    .mobile-menu a {
      display: block;
      padding: 12px 16px;
      font-size: 0.95rem;
      font-weight: 500;
      color: var(--text-muted);
      border-radius: 8px;
      transition: all var(--transition-base);
    }

    .mobile-menu a:hover {
      color: var(--text-white);
      background: rgba(255, 191, 0, 0.08);
    }

    .mobile-menu a.active {
      color: var(--accent-amber);
      background: rgba(197, 160, 89, 0.12);
    }

    @media (min-width: 1024px) {
      .nav-links {
        display: flex;
      }
      .nav-toggle {
        display: none;
      }
      .mobile-menu {
        display: none !important;
      }
    }

    /* ===== Article Hero ===== */
    .article-hero {
      position: relative;
      padding-top: 120px;
      padding-bottom: var(--spacing-lg);
      background: linear-gradient(180deg, var(--bg-secondary) 0%, var(--bg-primary) 100%);
      border-bottom: 1px solid var(--border-dark);
      overflow: hidden;
    }

    .article-hero::before {
      content: '';
      position: absolute;
      top: 0;
      right: -200px;
      width: 500px;
      height: 500px;
      background: radial-gradient(circle, rgba(255, 191, 0, 0.08) 0%, transparent 70%);
      pointer-events: none;
      border-radius: 50%;
    }

    .article-hero::after {
      content: '';
      position: absolute;
      bottom: -150px;
      left: -100px;
      width: 400px;
      height: 400px;
      background: radial-gradient(circle, rgba(197, 160, 89, 0.06) 0%, transparent 70%);
      pointer-events: none;
      border-radius: 50%;
    }

    .breadcrumb {
      display: flex;
      align-items: center;
      gap: 8px;
      flex-wrap: wrap;
      font-size: 0.82rem;
      color: var(--text-muted);
      margin-bottom: var(--spacing-md);
      position: relative;
      z-index: 1;
    }

    .breadcrumb a {
      color: var(--text-muted);
      transition: color var(--transition-base);
    }

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

    .breadcrumb .sep {
      color: var(--border-dark);
      font-size: 0.7rem;
    }

    .breadcrumb .current {
      color: var(--text-gold);
      font-weight: 600;
      max-width: 320px;
      overflow: hidden;
      text-overflow: ellipsis;
      white-space: nowrap;
    }

    .article-hero-content {
      position: relative;
      z-index: 1;
      display: grid;
      grid-template-columns: 1fr;
      gap: var(--spacing-md);
    }

    .article-hero-text {
      display: flex;
      flex-direction: column;
      gap: var(--spacing-sm);
    }

    .article-meta {
      display: flex;
      align-items: center;
      gap: 12px;
      flex-wrap: wrap;
      font-size: 0.85rem;
      color: var(--text-muted);
    }

    .article-meta .tag {
      display: inline-flex;
      align-items: center;
      padding: 4px 14px;
      font-size: 0.78rem;
      font-weight: 700;
      color: var(--accent-amber);
      background: rgba(197, 160, 89, 0.12);
      border: 1px solid var(--border-gold);
      border-radius: 20px;
      letter-spacing: 0.02em;
    }

    .article-meta .date {
      display: flex;
      align-items: center;
      gap: 6px;
    }

    .article-meta .date::before {
      content: '📅';
      font-size: 0.85rem;
    }

    .article-h1 {
      font-size: clamp(1.6rem, 4vw, 2.6rem);
      font-weight: 800;
      line-height: 1.3;
      letter-spacing: -0.01em;
      color: var(--text-white);
      margin: 0;
    }

    .article-excerpt {
      font-size: 1rem;
      line-height: 1.7;
      color: var(--text-muted);
      max-width: 700px;
      margin: 0;
    }

    .article-hero-side {
      position: relative;
      min-height: 260px;
      border-radius: var(--radius-lg);
      overflow: hidden;
      border: 1px solid var(--border-gold);
      box-shadow: var(--shadow-deep);
      background: var(--bg-tertiary);
    }

    .article-hero-side img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      min-height: 260px;
    }

    .article-hero-side .overlay {
      position: absolute;
      inset: 0;
      background: linear-gradient(135deg, rgba(255, 191, 0, 0.15) 0%, rgba(18, 18, 18, 0.6) 100%);
      pointer-events: none;
    }

    @media (min-width: 768px) {
      .article-hero-content {
        grid-template-columns: 1.2fr 0.8fr;
        align-items: center;
      }
      .article-hero-side {
        min-height: 320px;
      }
      .article-hero-side img {
        min-height: 320px;
      }
    }

    /* ===== Article Main ===== */
    .article-main {
      padding: var(--spacing-lg) 0 var(--spacing-xl);
      flex: 1;
    }

    .article-layout {
      display: grid;
      grid-template-columns: 1fr;
      gap: var(--spacing-lg);
    }

    @media (min-width: 1024px) {
      .article-layout {
        grid-template-columns: 1fr 300px;
        gap: var(--spacing-xl);
      }
    }

    .article-body {
      background: transparent;
      border: none;
      padding: 0;
    }

    .article-content {
      font-size: 1rem;
      line-height: 1.75;
      color: var(--text-white);
    }

    .article-content h2,
    .article-content h3,
    .article-content h4 {
      color: var(--text-white);
      font-weight: 700;
      line-height: 1.4;
      margin-top: var(--spacing-lg);
      margin-bottom: var(--spacing-sm);
    }

    .article-content h2 {
      font-size: 1.45rem;
      letter-spacing: -0.01em;
      border-left: 3px solid var(--accent-amber);
      padding-left: var(--spacing-sm);
    }

    .article-content h3 {
      font-size: 1.2rem;
    }

    .article-content h4 {
      font-size: 1.05rem;
    }

    .article-content p {
      margin-bottom: var(--spacing-sm);
      color: var(--text-white);
      opacity: 0.92;
    }

    .article-content ul,
    .article-content ol {
      margin: var(--spacing-sm) 0;
      padding-left: var(--spacing-md);
    }

    .article-content ul {
      list-style: disc;
    }

    .article-content ol {
      list-style: decimal;
    }

    .article-content li {
      margin-bottom: 8px;
      line-height: 1.7;
    }

    .article-content img {
      border-radius: var(--radius-md);
      margin: var(--spacing-md) 0;
      box-shadow: var(--shadow-deep);
    }

    .article-content blockquote {
      border-left: 3px solid var(--accent-gold);
      padding: var(--spacing-sm) var(--spacing-md);
      margin: var(--spacing-md) 0;
      background: rgba(197, 160, 89, 0.06);
      border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
      font-style: italic;
      color: var(--text-muted);
    }

    .article-content a {
      color: var(--accent-amber);
      text-decoration: underline;
      text-underline-offset: 3px;
    }

    .article-content a:hover {
      color: var(--text-white);
    }

    /* Not Found State */
    .not-found {
      display: flex;
      flex-direction: column;
      align-items: center;
      justify-content: center;
      text-align: center;
      padding: var(--spacing-xl) 0;
      gap: var(--spacing-sm);
    }

    .not-found-icon {
      font-size: 3rem;
      margin-bottom: var(--spacing-xs);
    }

    .not-found h2 {
      font-size: 1.6rem;
      font-weight: 800;
      color: var(--text-white);
      margin: 0;
    }

    .not-found p {
      color: var(--text-muted);
      font-size: 0.95rem;
      margin: 0 0 var(--spacing-sm);
    }

    .btn-primary {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 12px 28px;
      font-size: 0.92rem;
      font-weight: 700;
      color: #121212;
      border-radius: 10px;
      background: linear-gradient(135deg, var(--accent-gold), var(--accent-amber));
      box-shadow: 0 2px 16px rgba(255, 191, 0, 0.35);
      transition: all var(--transition-base);
    }

    .btn-primary:hover {
      transform: translateY(-2px);
      box-shadow: 0 6px 28px rgba(255, 191, 0, 0.5);
    }

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

    /* ===== Article Sidebar ===== */
    .article-sidebar {
      display: flex;
      flex-direction: column;
      gap: var(--spacing-sm);
    }

    .article-sidebar-card {
      background: var(--glass-bg);
      backdrop-filter: blur(16px);
      -webkit-backdrop-filter: blur(16px);
      border: 1px solid var(--glass-border);
      border-radius: var(--radius-md);
      padding: var(--spacing-sm);
      box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
    }

    .article-sidebar-card h4 {
      font-size: 0.95rem;
      font-weight: 700;
      color: var(--accent-amber);
      margin: 0 0 12px;
      display: flex;
      align-items: center;
      gap: 8px;
    }

    .sidebar-link-list {
      display: flex;
      flex-direction: column;
      gap: 8px;
    }

    .sidebar-link-list a {
      display: flex;
      align-items: center;
      gap: 10px;
      padding: 10px 12px;
      font-size: 0.85rem;
      color: var(--text-muted);
      border-radius: 8px;
      background: rgba(255, 255, 255, 0.03);
      border: 1px solid var(--border-dark);
      transition: all var(--transition-base);
    }

    .sidebar-link-list a:hover {
      color: var(--accent-amber);
      border-color: var(--border-gold);
      background: rgba(197, 160, 89, 0.06);
    }

    .sidebar-link-list a .arrow {
      margin-left: auto;
      font-size: 0.75rem;
    }

    /* ===== Bottom CTA ===== */
    .article-cta {
      margin-top: var(--spacing-lg);
      background: linear-gradient(135deg, var(--bg-secondary) 0%, var(--bg-tertiary) 100%);
      border: 1px solid var(--border-gold);
      border-radius: var(--radius-lg);
      padding: var(--spacing-md);
      display: flex;
      flex-direction: column;
      gap: var(--spacing-sm);
    }

    .article-cta h3 {
      font-size: 1.25rem;
      font-weight: 800;
      color: var(--text-white);
      margin: 0;
    }

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

    .article-cta .cta-actions {
      display: flex;
      gap: 12px;
      flex-wrap: wrap;
    }

    .btn-outline-gold {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 10px 22px;
      font-size: 0.88rem;
      font-weight: 700;
      color: var(--accent-amber);
      border-radius: 10px;
      border: 1px solid var(--accent-gold);
      background: transparent;
      transition: all var(--transition-base);
    }

    .btn-outline-gold:hover {
      background: rgba(197, 160, 89, 0.1);
      box-shadow: 0 2px 16px rgba(197, 160, 89, 0.25);
      transform: translateY(-1px);
    }

    @media (min-width: 768px) {
      .article-cta {
        display: flex;
        flex-direction: row;
        align-items: center;
        justify-content: space-between;
        gap: var(--spacing-md);
      }
      .article-cta .cta-actions {
        flex-shrink: 0;
      }
    }

    /* ===== Footer ===== */
    .site-footer {
      background: var(--bg-secondary);
      border-top: 1px solid var(--border-dark);
      padding: var(--spacing-xl) 0 var(--spacing-md);
      margin-top: auto;
    }

    .footer-grid {
      display: grid;
      grid-template-columns: 1fr;
      gap: var(--spacing-lg);
      padding-bottom: var(--spacing-lg);
      border-bottom: 1px solid var(--border-dark);
    }

    .footer-brand {
      display: flex;
      flex-direction: column;
      gap: var(--spacing-sm);
    }

    .footer-brand p {
      font-size: 0.88rem;
      color: var(--text-muted);
      line-height: 1.7;
      margin: 0;
    }

    .footer-badges {
      display: flex;
      gap: 8px;
      flex-wrap: wrap;
      margin-top: 4px;
    }

    .footer-badge {
      display: inline-flex;
      align-items: center;
      padding: 4px 12px;
      font-size: 0.72rem;
      font-weight: 700;
      color: var(--text-muted);
      background: var(--bg-tertiary);
      border: 1px solid var(--border-dark);
      border-radius: 20px;
      letter-spacing: 0.03em;
    }

    .footer-badge.gold {
      color: var(--accent-amber);
      border-color: var(--border-gold);
      background: rgba(197, 160, 89, 0.1);
    }

    .footer-col h4 {
      font-size: 0.9rem;
      font-weight: 700;
      color: var(--text-white);
      margin: 0 0 14px;
    }

    .footer-col ul {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 8px;
    }

    .footer-col a {
      font-size: 0.85rem;
      color: var(--text-muted);
      transition: color var(--transition-base);
    }

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

    .footer-bottom {
      display: flex;
      flex-direction: column;
      gap: var(--spacing-sm);
      padding-top: var(--spacing-sm);
    }

    .footer-copyright {
      font-size: 0.78rem;
      color: var(--text-muted);
      margin: 0;
      line-height: 1.6;
    }

    @media (min-width: 768px) {
      .footer-grid {
        grid-template-columns: 1.5fr 1fr 1fr 1fr;
        gap: var(--spacing-lg);
      }
      .footer-bottom {
        flex-direction: row;
        align-items: center;
        justify-content: space-between;
        gap: var(--spacing-md);
      }
    }

    /* ===== FAB ===== */
    .fab-left {
      position: fixed;
      left: 16px;
      bottom: 96px;
      z-index: 50;
      width: 52px;
      height: 52px;
      border-radius: 50%;
      background: rgba(18, 18, 18, 0.75);
      backdrop-filter: blur(12px);
      -webkit-backdrop-filter: blur(12px);
      border: 2px solid transparent;
      background-clip: padding-box;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.3rem;
      color: var(--accent-amber);
      box-shadow: 0 0 15px rgba(0, 240, 255, 0.35), 0 4px 20px rgba(0, 0, 0, 0.4);
      transition: all var(--transition-base);
      animation: fab-breathe 3s ease-in-out infinite;
      cursor: pointer;
    }

    .fab-left::before {
      content: '';
      position: absolute;
      inset: -2px;
      border-radius: 50%;
      background: linear-gradient(135deg, var(--accent-amber), #CCFF00, #00F0FF, var(--accent-amber));
      background-size: 300% 300%;
      animation: fab-gradient 4s ease infinite;
      z-index: -1;
      opacity: 0.6;
    }

    .fab-left:hover {
      transform: scale(1.1);
      opacity: 1;
      box-shadow: 0 0 25px rgba(0, 240, 255, 0.6), 0 6px 30px rgba(0, 0, 0, 0.5);
    }

    .fab-left:active {
      transform: scale(0.95);
    }

    .fab-left .fab-notification {
      position: absolute;
      top: -4px;
      right: -4px;
      width: 16px;
      height: 16px;
      background: #FF007F;
      border-radius: 50%;
      border: 2px solid var(--bg-primary);
      animation: fab-blink 1.5s ease-in-out infinite;
    }

    @keyframes fab-breathe {
      0%, 100% {
        opacity: 0.7;
      }
      50% {
        opacity: 1;
      }
    }

    @keyframes fab-gradient {
      0% {
        background-position: 0% 50%;
      }
      50% {
        background-position: 100% 50%;
      }
      100% {
        background-position: 0% 50%;
      }
    }

    @keyframes fab-blink {
      0%, 100% {
        opacity: 1;
      }
      50% {
        opacity: 0.3;
      }
    }

    /* ===== Responsive Fine-tuning ===== */
    @media (max-width: 767px) {
      .article-h1 {
        font-size: 1.45rem;
      }
      .breadcrumb .current {
        max-width: 180px;
      }
      .article-hero {
        padding-top: 100px;
      }
      .article-cta h3 {
        font-size: 1.1rem;
      }
    }

    @media (max-width: 520px) {
      .nav-logo {
        font-size: 0.9rem;
      }
      .nav-logo-icon {
        width: 32px;
        height: 32px;
        font-size: 1rem;
        border-radius: 8px;
      }
      .btn-login {
        padding: 6px 12px;
        font-size: 0.8rem;
      }
      .btn-signup {
        padding: 6px 14px;
        font-size: 0.8rem;
      }
      .nav-auth {
        gap: 6px;
      }
      .article-meta {
        font-size: 0.78rem;
        gap: 8px;
      }
      .article-h1 {
        font-size: 1.3rem;
      }
      .fab-left {
        width: 46px;
        height: 46px;
        font-size: 1.1rem;
        bottom: 80px;
        left: 12px;
      }
    }

/* roulang page: category1 */
:root {
      --bg-primary: #121212;
      --bg-secondary: #1C1C1E;
      --bg-tertiary: #232327;
      --accent-gold: #C5A059;
      --accent-amber: #FFBF00;
      --accent-muted: #D4AC0D;
      --text-white: #F5F5F7;
      --text-muted: #A6A6AE;
      --text-gold: #D4AC0D;
      --border-dark: #2C2C30;
      --border-gold: rgba(197, 160, 89, 0.3);
      --shadow-gold: 0 4px 20px rgba(197, 160, 89, 0.15);
      --shadow-deep: 0 12px 40px rgba(0, 0, 0, 0.5);
      --radius-sm: 8px;
      --radius-md: 14px;
      --radius-lg: 20px;
      --radius-xl: 28px;
      --spacing-xs: 8px;
      --spacing-sm: 16px;
      --spacing-md: 24px;
      --spacing-lg: 40px;
      --spacing-xl: 64px;
      --spacing-2xl: 88px;
      --font-primary: 'Be Vietnam Pro', ui-sans-serif, system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
      --transition-base: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
      --transition-smooth: 0.4s cubic-bezier(0.16, 1, 0.3, 1);
    }
    html {
      scroll-behavior: smooth;
      -webkit-text-size-adjust: 100%;
      -webkit-font-smoothing: antialiased;
      -moz-osx-font-smoothing: grayscale;
    }
    body {
      font-family: var(--font-primary);
      background-color: var(--bg-primary);
      color: var(--text-white);
      line-height: 1.6;
      min-height: 100vh;
      display: flex;
      flex-direction: column;
      overflow-x: hidden;
    }
    a {
      color: inherit;
      text-decoration: none;
      transition: color var(--transition-base);
    }
    a:focus-visible,
    button:focus-visible,
    input:focus-visible,
    summary:focus-visible {
      outline: 2px solid var(--accent-amber);
      outline-offset: 3px;
      border-radius: 4px;
    }
    img {
      max-width: 100%;
      height: auto;
      display: block;
    }
    button {
      font-family: inherit;
      cursor: pointer;
      border: none;
      background: none;
      color: inherit;
    }
    .container {
      width: 100%;
      max-width: 1200px;
      margin: 0 auto;
      padding: 0 var(--spacing-sm);
    }
    @media (min-width: 640px) {
      .container {
        padding: 0 var(--spacing-md);
      }
    }
    @media (min-width: 1024px) {
      .container {
        padding: 0 var(--spacing-lg);
      }
    }
    /* Header / Navigation */
    .site-header {
      position: fixed;
      top: 0;
      left: 0;
      right: 0;
      z-index: 100;
      background: rgba(18, 18, 18, 0.88);
      backdrop-filter: blur(20px);
      -webkit-backdrop-filter: blur(20px);
      border-bottom: 1px solid var(--border-dark);
      transition: box-shadow var(--transition-base), background var(--transition-base);
    }
    .site-header.scrolled {
      background: rgba(18, 18, 18, 0.96);
      box-shadow: 0 4px 24px rgba(0, 0, 0, 0.45);
      border-bottom-color: var(--border-gold);
    }
    .nav-wrapper {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 68px;
      gap: var(--spacing-sm);
    }
    .nav-logo {
      display: flex;
      align-items: center;
      gap: 10px;
      flex-shrink: 0;
      font-weight: 800;
      font-size: 1.05rem;
      letter-spacing: -0.01em;
      color: var(--text-white);
      white-space: nowrap;
    }
    .nav-logo-icon {
      width: 36px;
      height: 36px;
      border-radius: 10px;
      background: linear-gradient(135deg, var(--accent-gold), var(--accent-amber));
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.2rem;
      color: #121212;
      flex-shrink: 0;
      box-shadow: 0 2px 12px rgba(255, 191, 0, 0.3);
    }
    .nav-logo span {
      color: var(--accent-amber);
    }
    .nav-links {
      display: none;
      align-items: center;
      gap: 6px;
      flex: 1;
      justify-content: center;
      list-style: none;
      padding: 0 8px;
    }
    .nav-links li {
      position: relative;
    }
    .nav-links a {
      display: block;
      padding: 8px 14px;
      font-size: 0.9rem;
      font-weight: 500;
      color: var(--text-muted);
      border-radius: 8px;
      transition: color var(--transition-base), background var(--transition-base);
      white-space: nowrap;
    }
    .nav-links a:hover {
      color: var(--text-white);
      background: rgba(255, 191, 0, 0.08);
    }
    .nav-links a.active {
      color: var(--accent-amber);
      background: rgba(197, 160, 89, 0.12);
      font-weight: 600;
    }
    .nav-links a.active::after {
      content: '';
      position: absolute;
      bottom: -2px;
      left: 50%;
      transform: translateX(-50%);
      width: 20px;
      height: 2px;
      background: var(--accent-amber);
      border-radius: 2px;
    }
    .nav-auth {
      display: flex;
      align-items: center;
      gap: 10px;
      flex-shrink: 0;
    }
    .btn-login {
      padding: 8px 16px;
      font-size: 0.88rem;
      font-weight: 600;
      color: var(--text-white);
      border-radius: 8px;
      border: 1px solid var(--border-dark);
      background: transparent;
      transition: all var(--transition-base);
      white-space: nowrap;
    }
    .btn-login:hover {
      border-color: var(--accent-gold);
      color: var(--accent-amber);
      background: rgba(197, 160, 89, 0.08);
    }
    .btn-signup {
      padding: 8px 20px;
      font-size: 0.88rem;
      font-weight: 700;
      color: #121212;
      border-radius: 8px;
      background: linear-gradient(135deg, var(--accent-gold), var(--accent-amber));
      box-shadow: 0 2px 14px rgba(255, 191, 0, 0.35);
      transition: all var(--transition-base);
      white-space: nowrap;
    }
    .btn-signup:hover {
      transform: translateY(-2px);
      box-shadow: 0 6px 24px rgba(255, 191, 0, 0.5);
    }
    .btn-signup:active {
      transform: translateY(0);
      box-shadow: 0 2px 8px rgba(255, 191, 0, 0.3);
    }
    .nav-toggle {
      display: flex;
      align-items: center;
      justify-content: center;
      width: 42px;
      height: 42px;
      border-radius: 10px;
      background: var(--bg-secondary);
      border: 1px solid var(--border-dark);
      color: var(--text-white);
      transition: all var(--transition-base);
      flex-shrink: 0;
    }
    .nav-toggle:hover {
      border-color: var(--accent-gold);
      color: var(--accent-amber);
    }
    @media (min-width: 1024px) {
      .nav-links {
        display: flex;
      }
      .nav-toggle {
        display: none;
      }
    }
    /* Mobile Nav */
    .mobile-nav {
      display: none;
      flex-direction: column;
      background: var(--bg-secondary);
      border-bottom: 1px solid var(--border-dark);
      padding: var(--spacing-sm) var(--spacing-md) var(--spacing-md);
    }
    .mobile-nav.open {
      display: flex;
    }
    .mobile-nav a {
      padding: 12px 0;
      font-size: 1rem;
      font-weight: 500;
      color: var(--text-muted);
      border-bottom: 1px solid var(--border-dark);
      transition: color var(--transition-base);
    }
    .mobile-nav a:last-of-type {
      border-bottom: none;
    }
    .mobile-nav a:hover,
    .mobile-nav a.active {
      color: var(--accent-amber);
    }
    @media (min-width: 1024px) {
      .mobile-nav {
        display: none !important;
      }
    }
    /* Hero Category */
    .category-hero {
      position: relative;
      padding: var(--spacing-2xl) 0 var(--spacing-xl);
      background: linear-gradient(180deg, rgba(18, 18, 18, 0.95), rgba(18, 18, 18, 0.98)), url('/assets/images/backpic/back-2.jpg') center/cover no-repeat;
      border-bottom: 1px solid var(--border-dark);
      overflow: hidden;
    }
    .category-hero::after {
      content: '';
      position: absolute;
      top: 0;
      left: 0;
      right: 0;
      bottom: 0;
      background: radial-gradient(ellipse at 30% 20%, rgba(197, 160, 89, 0.12) 0%, transparent 55%),
                  radial-gradient(ellipse at 80% 70%, rgba(255, 191, 0, 0.06) 0%, transparent 40%);
      pointer-events: none;
    }
    .hero-badge {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      padding: 6px 14px;
      font-size: 0.82rem;
      font-weight: 600;
      color: var(--accent-amber);
      background: rgba(197, 160, 89, 0.12);
      border: 1px solid var(--border-gold);
      border-radius: 999px;
      margin-bottom: var(--spacing-sm);
    }
    .hero-title {
      font-size: 2.25rem;
      line-height: 1.15;
      font-weight: 900;
      letter-spacing: -0.02em;
      max-width: 800px;
      margin-bottom: var(--spacing-sm);
    }
    .hero-title em {
      font-style: normal;
      color: var(--accent-amber);
    }
    .hero-subtitle {
      font-size: 1.1rem;
      color: var(--text-muted);
      max-width: 680px;
      line-height: 1.65;
      margin-bottom: var(--spacing-lg);
    }
    .hero-actions {
      display: flex;
      flex-wrap: wrap;
      gap: var(--spacing-sm);
      margin-bottom: var(--spacing-lg);
    }
    .btn-primary {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      padding: 14px 28px;
      font-size: 1rem;
      font-weight: 700;
      color: #121212;
      border-radius: 10px;
      background: linear-gradient(135deg, var(--accent-gold), var(--accent-amber));
      box-shadow: 0 4px 20px rgba(255, 191, 0, 0.35);
      transition: all var(--transition-base);
    }
    .btn-primary:hover {
      transform: translateY(-2px);
      box-shadow: 0 8px 28px rgba(255, 191, 0, 0.55);
    }
    .btn-primary:active {
      transform: translateY(0);
      box-shadow: 0 2px 10px rgba(255, 191, 0, 0.3);
    }
    .btn-outline {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      padding: 14px 28px;
      font-size: 1rem;
      font-weight: 600;
      color: var(--text-white);
      border-radius: 10px;
      border: 1px solid var(--border-dark);
      background: rgba(35, 35, 39, 0.6);
      transition: all var(--transition-base);
    }
    .btn-outline:hover {
      border-color: var(--accent-gold);
      color: var(--accent-amber);
      background: rgba(197, 160, 89, 0.08);
    }
    /* Creator Profile Panel */
    .creator-panel {
      position: relative;
      display: flex;
      align-items: center;
      gap: var(--spacing-md);
      padding: var(--spacing-md);
      background: rgba(28, 28, 30, 0.85);
      border: 1px solid var(--border-dark);
      border-radius: var(--radius-lg);
      backdrop-filter: blur(12px);
      -webkit-backdrop-filter: blur(12px);
      margin-bottom: var(--spacing-md);
    }
    .creator-avatar {
      width: 64px;
      height: 64px;
      border-radius: 50%;
      background: linear-gradient(135deg, var(--accent-gold), var(--accent-amber));
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.8rem;
      color: #121212;
      font-weight: 900;
      flex-shrink: 0;
      box-shadow: 0 0 0 3px rgba(197, 160, 89, 0.3), 0 4px 16px rgba(255, 191, 0, 0.2);
    }
    .creator-info {
      flex: 1;
      min-width: 0;
    }
    .creator-name {
      font-size: 1.1rem;
      font-weight: 700;
      color: var(--text-white);
      margin-bottom: 2px;
    }
    .creator-role {
      font-size: 0.85rem;
      color: var(--text-muted);
      margin-bottom: 8px;
    }
    .creator-stats {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
    }
    .creator-stat {
      font-size: 0.8rem;
      color: var(--text-muted);
      white-space: nowrap;
    }
    .creator-stat strong {
      color: var(--accent-amber);
      font-weight: 700;
    }
    .creator-follow {
      flex-shrink: 0;
      padding: 10px 20px;
      font-size: 0.85rem;
      font-weight: 700;
      color: #121212;
      border-radius: 8px;
      background: linear-gradient(135deg, var(--accent-gold), var(--accent-amber));
      box-shadow: 0 2px 12px rgba(255, 191, 0, 0.3);
      transition: all var(--transition-base);
      white-space: nowrap;
    }
    .creator-follow:hover {
      transform: translateY(-2px);
      box-shadow: 0 6px 20px rgba(255, 191, 0, 0.5);
    }
    /* Stats Dashboard */
    .stats-dashboard {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: var(--spacing-sm);
    }
    .stat-card {
      padding: var(--spacing-md);
      background: rgba(28, 28, 30, 0.7);
      border: 1px solid var(--border-dark);
      border-radius: var(--radius-md);
      transition: all var(--transition-base);
    }
    .stat-card:hover {
      border-color: var(--border-gold);
      box-shadow: var(--shadow-gold);
    }
    .stat-number {
      font-size: 1.6rem;
      font-weight: 800;
      color: var(--accent-amber);
      margin-bottom: 4px;
    }
    .stat-label {
      font-size: 0.85rem;
      color: var(--text-muted);
    }
    /* Section Styles */
    .section {
      padding: var(--spacing-xl) 0;
    }
    .section-header {
      margin-bottom: var(--spacing-lg);
    }
    .section-label {
      display: inline-block;
      font-size: 0.8rem;
      font-weight: 700;
      text-transform: uppercase;
      letter-spacing: 0.08em;
      color: var(--accent-amber);
      margin-bottom: var(--spacing-xs);
    }
    .section-title {
      font-size: 1.75rem;
      line-height: 1.2;
      font-weight: 800;
      letter-spacing: -0.01em;
      text-align: left;
    }
    .section-desc {
      margin-top: var(--spacing-sm);
      font-size: 1rem;
      color: var(--text-muted);
      max-width: 600px;
      text-align: left;
    }
    /* Service Matrix */
    .service-grid {
      display: grid;
      grid-template-columns: 1fr;
      gap: var(--spacing-md);
    }
    @media (min-width: 640px) {
      .service-grid {
        grid-template-columns: repeat(2, 1fr);
      }
    }
    @media (min-width: 1024px) {
      .service-grid {
        grid-template-columns: repeat(3, 1fr);
      }
    }
    .service-card {
      padding: var(--spacing-lg) var(--spacing-md);
      background: rgba(28, 28, 30, 0.65);
      border: 1px solid var(--border-dark);
      border-radius: var(--radius-lg);
      transition: all var(--transition-base);
      position: relative;
      overflow: hidden;
    }
    .service-card::before {
      content: '';
      position: absolute;
      top: 0;
      left: 0;
      right: 0;
      height: 3px;
      background: linear-gradient(90deg, var(--accent-gold), var(--accent-amber));
      opacity: 0;
      transition: opacity var(--transition-base);
    }
    .service-card:hover {
      border-color: var(--border-gold);
      box-shadow: var(--shadow-gold);
      transform: translateY(-4px);
    }
    .service-card:hover::before {
      opacity: 1;
    }
    .service-icon {
      width: 48px;
      height: 48px;
      border-radius: 12px;
      background: rgba(197, 160, 89, 0.12);
      border: 1px solid var(--border-gold);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.5rem;
      margin-bottom: var(--spacing-sm);
    }
    .service-title {
      font-size: 1.1rem;
      font-weight: 700;
      margin-bottom: var(--spacing-xs);
    }
    .service-desc {
      font-size: 0.9rem;
      color: var(--text-muted);
      line-height: 1.6;
    }
    /* Comparison */
    .comparison-grid {
      display: grid;
      grid-template-columns: 1fr;
      gap: var(--spacing-md);
    }
    @media (min-width: 768px) {
      .comparison-grid {
        grid-template-columns: repeat(2, 1fr);
      }
    }
    .comparison-card {
      padding: var(--spacing-lg);
      border-radius: var(--radius-lg);
      border: 1px solid var(--border-dark);
      position: relative;
      transition: all var(--transition-base);
    }
    .comparison-card.best {
      border-color: rgba(255, 191, 0, 0.5);
      background: rgba(197, 160, 89, 0.06);
    }
    .comparison-badge {
      display: inline-block;
      padding: 4px 14px;
      font-size: 0.75rem;
      font-weight: 700;
      text-transform: uppercase;
      letter-spacing: 0.05em;
      color: #121212;
      background: linear-gradient(135deg, var(--accent-gold), var(--accent-amber));
      border-radius: 999px;
      margin-bottom: var(--spacing-sm);
    }
    .comparison-card h3 {
      font-size: 1.2rem;
      font-weight: 700;
      margin-bottom: var(--spacing-sm);
    }
    .comparison-list {
      list-style: none;
      padding: 0;
      margin: 0;
    }
    .comparison-list li {
      display: flex;
      align-items: flex-start;
      gap: 10px;
      padding: 8px 0;
      font-size: 0.9rem;
      color: var(--text-muted);
      border-bottom: 1px solid var(--border-dark);
    }
    .comparison-list li:last-child {
      border-bottom: none;
    }
    .comparison-icon {
      flex-shrink: 0;
      font-size: 1rem;
      color: var(--accent-amber);
      margin-top: 2px;
    }
    .comparison-icon.none {
      color: #555;
    }
    /* FAQ */
    .faq-list {
      max-width: 760px;
    }
    .faq-item {
      border: 1px solid var(--border-dark);
      border-radius: var(--radius-md);
      margin-bottom: var(--spacing-sm);
      background: rgba(28, 28, 30, 0.5);
      overflow: hidden;
      transition: border-color var(--transition-base);
    }
    .faq-item:hover {
      border-color: var(--border-gold);
    }
    .faq-item summary {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: var(--spacing-sm);
      padding: var(--spacing-md);
      cursor: pointer;
      font-weight: 600;
      font-size: 0.95rem;
      list-style: none;
      transition: color var(--transition-base);
    }
    .faq-item summary::-webkit-details-marker {
      display: none;
    }
    .faq-item summary::after {
      content: '+';
      flex-shrink: 0;
      width: 28px;
      height: 28px;
      display: flex;
      align-items: center;
      justify-content: center;
      border-radius: 8px;
      background: rgba(197, 160, 89, 0.1);
      color: var(--accent-amber);
      font-size: 1.2rem;
      transition: transform var(--transition-base);
    }
    .faq-item[open] summary::after {
      transform: rotate(45deg);
    }
    .faq-item summary:hover {
      color: var(--accent-amber);
    }
    .faq-answer {
      padding: 0 var(--spacing-md) var(--spacing-md);
      font-size: 0.9rem;
      color: var(--text-muted);
      line-height: 1.65;
    }
    /* CTA Form */
    .cta-section {
      padding: var(--spacing-xl) 0;
      background: linear-gradient(180deg, var(--bg-primary) 0%, rgba(197, 160, 89, 0.05) 100%);
      border-top: 1px solid var(--border-dark);
    }
    .cta-panel {
      padding: var(--spacing-lg);
      border-radius: var(--radius-xl);
      background: rgba(28, 28, 30, 0.8);
      border: 1px solid var(--border-gold);
      backdrop-filter: blur(16px);
      -webkit-backdrop-filter: blur(16px);
      box-shadow: 0 8px 40px rgba(197, 160, 89, 0.12);
    }
    .cta-panel h2 {
      font-size: 1.6rem;
      font-weight: 800;
      margin-bottom: var(--spacing-xs);
    }
    .cta-panel p {
      font-size: 1rem;
      color: var(--text-muted);
      margin-bottom: var(--spacing-md);
    }
    .cta-form {
      display: grid;
      grid-template-columns: 1fr;
      gap: var(--spacing-sm);
    }
    @media (min-width: 640px) {
      .cta-form {
        grid-template-columns: 1fr 1fr auto;
      }
    }
    .cta-form input {
      padding: 14px 18px;
      font-size: 1rem;
      font-family: inherit;
      color: var(--text-white);
      background: var(--bg-primary);
      border: 1px solid var(--border-dark);
      border-radius: 10px;
      transition: all var(--transition-base);
    }
    .cta-form input::placeholder {
      color: var(--text-muted);
    }
    .cta-form input:focus {
      outline: none;
      border-color: var(--accent-amber);
      box-shadow: 0 0 0 3px rgba(255, 191, 0, 0.15);
    }
    .cta-form .btn-primary {
      white-space: nowrap;
    }
    /* Footer */
    .site-footer {
      background: var(--bg-secondary);
      border-top: 1px solid var(--border-dark);
      padding: var(--spacing-xl) 0 var(--spacing-md);
      margin-top: auto;
    }
    .footer-grid {
      display: grid;
      grid-template-columns: 1fr;
      gap: var(--spacing-lg);
      margin-bottom: var(--spacing-lg);
    }
    @media (min-width: 640px) {
      .footer-grid {
        grid-template-columns: 1.5fr 1fr 1fr 1fr;
      }
    }
    .footer-brand p {
      font-size: 0.85rem;
      color: var(--text-muted);
      margin-top: var(--spacing-sm);
      max-width: 340px;
    }
    .footer-badges {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
      margin-top: var(--spacing-sm);
    }
    .footer-badge {
      display: inline-block;
      padding: 4px 12px;
      font-size: 0.75rem;
      font-weight: 600;
      color: var(--text-muted);
      background: var(--bg-tertiary);
      border: 1px solid var(--border-dark);
      border-radius: 999px;
    }
    .footer-badge.gold {
      color: var(--accent-amber);
      border-color: var(--border-gold);
      background: rgba(197, 160, 89, 0.08);
    }
    .footer-col h4 {
      font-size: 0.9rem;
      font-weight: 700;
      margin-bottom: var(--spacing-sm);
      color: var(--text-white);
    }
    .footer-col ul {
      list-style: none;
      padding: 0;
      margin: 0;
    }
    .footer-col li {
      margin-bottom: 8px;
    }
    .footer-col a {
      font-size: 0.85rem;
      color: var(--text-muted);
      transition: color var(--transition-base);
    }
    .footer-col a:hover {
      color: var(--accent-amber);
    }
    .footer-bottom {
      display: flex;
      flex-direction: column;
      gap: var(--spacing-sm);
      border-top: 1px solid var(--border-dark);
      padding-top: var(--spacing-md);
    }
    @media (min-width: 768px) {
      .footer-bottom {
        flex-direction: row;
        align-items: center;
        justify-content: space-between;
      }
    }
    .footer-copyright {
      font-size: 0.8rem;
      color: var(--text-muted);
    }
    /* FAB */
    .fab-left {
      position: fixed;
      left: 16px;
      bottom: 96px;
      z-index: 50;
      display: flex;
      align-items: center;
      justify-content: center;
      width: 56px;
      height: 56px;
      border-radius: 50%;
      background: rgba(18, 18, 18, 0.75);
      border: 2px solid var(--accent-gold);
      backdrop-filter: blur(12px);
      -webkit-backdrop-filter: blur(12px);
      box-shadow: 0 0 20px rgba(197, 160, 89, 0.35), 0 4px 20px rgba(0, 0, 0, 0.45);
      transition: all var(--transition-smooth);
      animation: fab-float 3s ease-in-out infinite;
      text-decoration: none;
    }
    .fab-left:hover {
      transform: scale(1.1);
      box-shadow: 0 0 30px rgba(255, 191, 0, 0.55), 0 6px 24px rgba(0, 0, 0, 0.55);
      border-color: var(--accent-amber);
    }
    .fab-left:active {
      transform: scale(0.95);
    }
    .fab-icon {
      font-size: 1.4rem;
      color: var(--accent-amber);
    }
    @keyframes fab-float {
      0%, 100% { transform: translateY(0); }
      50% { transform: translateY(-6px); }
    }
    @media (max-width: 640px) {
      .fab-left {
        width: 48px;
        height: 48px;
        bottom: 80px;
        left: 12px;
      }
      .fab-icon {
        font-size: 1.2rem;
      }
    }

/* roulang page: category3 */
:root {
      --bg-primary: #121212;
      --bg-secondary: #1C1C1E;
      --bg-tertiary: #232327;
      --accent-gold: #C5A059;
      --accent-amber: #FFBF00;
      --accent-muted: #D4AC0D;
      --text-white: #F5F5F7;
      --text-muted: #A6A6AE;
      --text-gold: #D4AC0D;
      --border-dark: #2C2C30;
      --border-gold: rgba(197, 160, 89, 0.3);
      --shadow-gold: 0 4px 20px rgba(197, 160, 89, 0.15);
      --shadow-deep: 0 12px 40px rgba(0,0,0,0.5);
      --radius-sm: 8px;
      --radius-md: 14px;
      --radius-lg: 20px;
      --radius-xl: 28px;
      --spacing-xs: 8px;
      --spacing-sm: 16px;
      --spacing-md: 24px;
      --spacing-lg: 40px;
      --spacing-xl: 64px;
      --spacing-2xl: 88px;
      --font-primary: 'Be Vietnam Pro', ui-sans-serif, system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
      --transition-base: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
      --transition-smooth: 0.4s cubic-bezier(0.16, 1, 0.3, 1);
    }
    html {
      scroll-behavior: smooth;
      -webkit-text-size-adjust: 100%;
      -webkit-font-smoothing: antialiased;
      -moz-osx-font-smoothing: grayscale;
    }
    body {
      font-family: var(--font-primary);
      background-color: var(--bg-primary);
      color: var(--text-white);
      line-height: 1.6;
      min-height: 100vh;
      display: flex;
      flex-direction: column;
      overflow-x: hidden;
    }
    a {
      color: inherit;
      text-decoration: none;
      transition: color var(--transition-base);
    }
    a:focus-visible,
    button:focus-visible,
    input:focus-visible,
    summary:focus-visible {
      outline: 2px solid var(--accent-amber);
      outline-offset: 3px;
      border-radius: 4px;
    }
    img {
      max-width: 100%;
      height: auto;
      display: block;
    }
    button {
      font-family: inherit;
      cursor: pointer;
      border: none;
      background: none;
      color: inherit;
    }
    .container {
      width: 100%;
      max-width: 1200px;
      margin: 0 auto;
      padding: 0 var(--spacing-sm);
    }
    @media (min-width: 640px) {
      .container { padding: 0 var(--spacing-md); }
    }
    @media (min-width: 1024px) {
      .container { padding: 0 var(--spacing-lg); }
    }

    /* Header / Navigation */
    .site-header {
      position: fixed;
      top: 0;
      left: 0;
      right: 0;
      z-index: 100;
      background: rgba(18, 18, 18, 0.88);
      backdrop-filter: blur(20px);
      -webkit-backdrop-filter: blur(20px);
      border-bottom: 1px solid var(--border-dark);
      transition: box-shadow var(--transition-base), background var(--transition-base);
    }
    .site-header.scrolled {
      background: rgba(18, 18, 18, 0.96);
      box-shadow: 0 4px 24px rgba(0, 0, 0, 0.45);
      border-bottom-color: var(--border-gold);
    }
    .nav-wrapper {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 68px;
      gap: var(--spacing-sm);
      flex-wrap: nowrap;
    }
    .nav-logo {
      display: flex;
      align-items: center;
      gap: 10px;
      flex-shrink: 0;
      font-weight: 800;
      font-size: 1.05rem;
      letter-spacing: -0.01em;
      color: var(--text-white);
      white-space: nowrap;
    }
    .nav-logo-icon {
      width: 36px;
      height: 36px;
      border-radius: 10px;
      background: linear-gradient(135deg, var(--accent-gold), var(--accent-amber));
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.2rem;
      color: #121212;
      flex-shrink: 0;
      box-shadow: 0 2px 12px rgba(255, 191, 0, 0.3);
    }
    .nav-logo span {
      color: var(--accent-amber);
    }
    .nav-links {
      display: none;
      align-items: center;
      gap: 6px;
      flex: 1;
      justify-content: center;
      list-style: none;
      padding: 0 8px;
      margin: 0;
    }
    .nav-links li {
      position: relative;
    }
    .nav-links a {
      display: block;
      padding: 8px 14px;
      font-size: 0.9rem;
      font-weight: 500;
      color: var(--text-muted);
      border-radius: 8px;
      transition: color var(--transition-base), background var(--transition-base);
      white-space: nowrap;
    }
    .nav-links a:hover {
      color: var(--text-white);
      background: rgba(255, 191, 0, 0.08);
    }
    .nav-links a.active {
      color: var(--accent-amber);
      background: rgba(197, 160, 89, 0.12);
      font-weight: 600;
    }
    .nav-links a.active::after {
      content: '';
      position: absolute;
      bottom: -2px;
      left: 50%;
      transform: translateX(-50%);
      width: 20px;
      height: 2px;
      background: var(--accent-amber);
      border-radius: 2px;
    }
    .nav-auth {
      display: flex;
      align-items: center;
      gap: 8px;
      flex-shrink: 0;
    }
    .btn-login {
      padding: 8px 14px;
      font-size: 0.85rem;
      font-weight: 600;
      color: var(--text-white);
      border-radius: 8px;
      border: 1px solid var(--border-dark);
      background: transparent;
      transition: all var(--transition-base);
      white-space: nowrap;
    }
    .btn-login:hover {
      border-color: var(--accent-gold);
      color: var(--accent-amber);
      background: rgba(197, 160, 89, 0.08);
    }
    .btn-signup {
      padding: 8px 18px;
      font-size: 0.85rem;
      font-weight: 700;
      color: #121212;
      border-radius: 8px;
      background: linear-gradient(135deg, var(--accent-gold), var(--accent-amber));
      box-shadow: 0 2px 14px rgba(255, 191, 0, 0.35);
      transition: all var(--transition-base);
      white-space: nowrap;
    }
    .btn-signup:hover {
      transform: translateY(-2px);
      box-shadow: 0 6px 24px rgba(255, 191, 0, 0.5);
    }
    .btn-signup:active {
      transform: translateY(0);
      box-shadow: 0 2px 8px rgba(255, 191, 0, 0.3);
    }
    .nav-toggle {
      display: flex;
      align-items: center;
      justify-content: center;
      width: 42px;
      height: 42px;
      border-radius: 10px;
      background: var(--bg-secondary);
      border: 1px solid var(--border-dark);
      color: var(--text-white);
      transition: all var(--transition-base);
      flex-shrink: 0;
    }
    .nav-toggle:hover {
      border-color: var(--accent-gold);
      color: var(--accent-amber);
    }
    .nav-toggle i {
      font-size: 1.2rem;
    }

    @media (min-width: 1024px) {
      .nav-toggle { display: none; }
      .nav-links { display: flex; }
    }
    @media (max-width: 1023px) {
      .nav-links {
        position: absolute;
        top: 68px;
        left: 0;
        right: 0;
        background: rgba(18, 18, 18, 0.98);
        backdrop-filter: blur(20px);
        border-bottom: 1px solid var(--border-dark);
        flex-direction: column;
        align-items: stretch;
        padding: 12px 16px;
        gap: 4px;
        display: none;
        z-index: 99;
      }
      .nav-links.open {
        display: flex;
      }
      .nav-links a {
        padding: 14px 16px;
        border-radius: 10px;
      }
      .nav-links a.active::after {
        display: none;
      }
      .nav-wrapper {
        flex-wrap: wrap;
        height: auto;
        padding: 10px 0;
      }
      .nav-auth {
        margin-left: auto;
      }
    }
    @media (max-width: 420px) {
      .btn-login { padding: 8px 10px; font-size: 0.78rem; }
      .btn-signup { padding: 8px 12px; font-size: 0.78rem; }
      .nav-logo { font-size: 0.9rem; }
    }

    main {
      flex: 1;
      padding-top: 68px;
    }

    /* Buttons */
    .btn-primary {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      padding: 12px 24px;
      border-radius: 10px;
      background: linear-gradient(135deg, var(--accent-gold), var(--accent-amber));
      color: #121212;
      font-weight: 700;
      font-size: 0.95rem;
      box-shadow: 0 4px 18px rgba(255, 191, 0, 0.35);
      transition: all var(--transition-base);
      border: none;
    }
    .btn-primary:hover {
      transform: translateY(-3px);
      box-shadow: 0 8px 28px rgba(255, 191, 0, 0.5);
    }
    .btn-primary:active {
      transform: translateY(0);
    }
    .btn-secondary {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      padding: 12px 24px;
      border-radius: 10px;
      background: transparent;
      color: var(--accent-amber);
      border: 1px solid var(--border-gold);
      font-weight: 600;
      font-size: 0.95rem;
      transition: all var(--transition-base);
    }
    .btn-secondary:hover {
      background: rgba(197, 160, 89, 0.1);
      border-color: var(--accent-gold);
      transform: translateY(-2px);
    }

    /* Badge */
    .badge-gold {
      display: inline-flex;
      align-items: center;
      gap: 4px;
      padding: 4px 10px;
      border-radius: 30px;
      border: 1px solid var(--border-gold);
      background: rgba(197, 160, 89, 0.1);
      color: var(--accent-amber);
      font-size: 0.75rem;
      font-weight: 600;
      letter-spacing: 0.02em;
    }

    /* Hero */
    .hero {
      position: relative;
      background:
        radial-gradient(ellipse at top right, rgba(197,160,89,0.15), transparent 55%),
        radial-gradient(ellipse at bottom left, rgba(255,191,0,0.08), transparent 55%),
        var(--bg-primary);
      padding: var(--spacing-lg) 0 var(--spacing-xl);
      overflow: hidden;
    }
    .hero-bg {
      position: absolute;
      inset: 0;
      background-image: url('/assets/images/backpic/back-1.jpg');
      background-size: cover;
      background-position: center;
      opacity: 0.18;
      z-index: 0;
      pointer-events: none;
    }
    .hero-content {
      position: relative;
      z-index: 1;
      display: grid;
      grid-template-columns: 1fr;
      gap: var(--spacing-lg);
      align-items: center;
    }
    @media (min-width: 1024px) {
      .hero-content {
        grid-template-columns: 1fr 1.3fr 1fr;
      }
    }
    .hero-side {
      display: flex;
      flex-direction: column;
      gap: 16px;
    }
    .hero-point {
      display: flex;
      align-items: flex-start;
      gap: 12px;
      padding: 14px 16px;
      background: rgba(18,18,18,0.7);
      border: 1px solid var(--border-dark);
      border-radius: var(--radius-md);
      transition: all var(--transition-base);
    }
    .hero-point:hover {
      border-color: var(--border-gold);
      background: rgba(28,28,30,0.9);
    }
    .hero-point-icon {
      width: 32px;
      height: 32px;
      border-radius: 8px;
      background: rgba(197,160,89,0.15);
      display: flex;
      align-items: center;
      justify-content: center;
      color: var(--accent-amber);
      flex-shrink: 0;
    }
    .hero-point-text {
      font-size: 0.9rem;
      color: var(--text-muted);
    }
    .hero-point-text strong {
      display: block;
      color: var(--text-white);
      font-weight: 600;
      margin-bottom: 2px;
    }
    .hero-stage {
      display: flex;
      flex-direction: column;
      align-items: center;
      text-align: center;
    }
    .hero-badge {
      margin-bottom: 16px;
    }
    .hero-title {
      font-size: 2.2rem;
      font-weight: 900;
      letter-spacing: -0.02em;
      margin-bottom: 12px;
      background: linear-gradient(135deg, var(--text-white), var(--accent-amber));
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      background-clip: text;
      line-height: 1.2;
    }
    .hero-subtitle {
      color: var(--text-muted);
      font-size: 1rem;
      max-width: 560px;
      margin-bottom: 24px;
    }
    .hero-stage-visual {
      width: 100%;
      max-width: 400px;
      margin: 16px auto 24px;
      position: relative;
      border-radius: var(--radius-lg);
      overflow: hidden;
      border: 1px solid var(--border-gold);
      box-shadow: var(--shadow-gold), 0 20px 50px rgba(0,0,0,0.5);
    }
    .hero-stage-visual img {
      width: 100%;
      height: auto;
      display: block;
    }
    .hero-stage-overlay {
      position: absolute;
      bottom: 0;
      left: 0;
      right: 0;
      padding: 20px 16px;
      background: linear-gradient(180deg, transparent, rgba(0,0,0,0.85));
      display: flex;
      justify-content: space-between;
      align-items: center;
      gap: 10px;
    }
    .hero-btn-group {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
      justify-content: center;
    }
    .hero-note {
      font-size: 0.78rem;
      color: var(--text-muted);
      margin-top: 12px;
    }

    /* Section general */
    .section {
      padding: var(--spacing-xl) 0;
    }
    .section-header {
      margin-bottom: var(--spacing-md);
    }
    .section-title {
      font-size: 1.7rem;
      font-weight: 800;
      letter-spacing: -0.01em;
      margin-bottom: 10px;
      color: var(--text-white);
    }
    .section-subtitle {
      color: var(--text-muted);
      font-size: 1rem;
      max-width: 650px;
    }
    .section-divider {
      width: 60px;
      height: 3px;
      background: linear-gradient(90deg, var(--accent-gold), var(--accent-amber));
      border-radius: 3px;
      margin: 10px 0 0;
    }

    /* Metrics dashboard */
    .metrics-grid {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: var(--spacing-sm);
      margin-top: var(--spacing-md);
    }
    @media (min-width: 768px) {
      .metrics-grid { grid-template-columns: repeat(4, 1fr); }
    }
    .metric-card {
      background: rgba(28,28,30,0.7);
      border: 1px solid var(--border-dark);
      border-radius: var(--radius-md);
      padding: 20px;
      transition: all var(--transition-base);
      backdrop-filter: blur(10px);
    }
    .metric-card:hover {
      border-color: var(--border-gold);
      box-shadow: var(--shadow-gold);
      transform: translateY(-3px);
    }
    .metric-value {
      font-size: 2rem;
      font-weight: 900;
      color: var(--accent-amber);
      letter-spacing: -0.02em;
    }
    .metric-label {
      font-size: 0.85rem;
      color: var(--text-muted);
    }

    /* Tips matrix */
    .tips-matrix {
      display: flex;
      flex-direction: column;
      gap: var(--spacing-md);
    }
    .tip-row {
      display: grid;
      grid-template-columns: 1fr;
      gap: var(--spacing-md);
      align-items: center;
      background: rgba(28,28,30,0.55);
      border: 1px solid var(--border-dark);
      border-radius: var(--radius-lg);
      padding: var(--spacing-md);
      transition: all var(--transition-base);
    }
    .tip-row:hover {
      border-color: var(--border-gold);
      background: rgba(35,35,39,0.7);
      box-shadow: var(--shadow-gold);
    }
    @media (min-width: 768px) {
      .tip-row { grid-template-columns: 180px 1fr; }
    }
    .tip-image {
      width: 100%;
      height: 130px;
      border-radius: var(--radius-md);
      overflow: hidden;
      border: 1px solid var(--border-dark);
    }
    .tip-image img {
      width: 100%;
      height: 100%;
      object-fit: cover;
    }
    .tip-info {
      display: flex;
      flex-direction: column;
      gap: 6px;
    }
    .tip-index {
      font-size: 0.75rem;
      font-weight: 700;
      color: var(--accent-amber);
      letter-spacing: 0.08em;
      text-transform: uppercase;
    }
    .tip-title {
      font-size: 1.25rem;
      font-weight: 700;
      color: var(--text-white);
    }
    .tip-desc {
      color: var(--text-muted);
      font-size: 0.95rem;
    }

    /* Comparison */
    .comparison-grid {
      display: grid;
      grid-template-columns: 1fr;
      gap: var(--spacing-md);
      margin-top: var(--spacing-md);
    }
    @media (min-width: 768px) {
      .comparison-grid { grid-template-columns: 1fr 1fr; }
    }
    .comparison-card {
      border-radius: var(--radius-lg);
      padding: var(--spacing-md);
      border: 1px solid var(--border-dark);
      background: rgba(28,28,30,0.6);
    }
    .comparison-card.bad {
      border-left: 4px solid #D32F2F;
    }
    .comparison-card.good {
      border-left: 4px solid var(--accent-amber);
    }
    .comparison-title {
      font-weight: 700;
      font-size: 1.1rem;
      margin-bottom: 12px;
      display: flex;
      align-items: center;
      gap: 8px;
    }
    .comparison-title i {
      color: #D32F2F;
    }
    .comparison-card.good .comparison-title i {
      color: var(--accent-amber);
    }
    .comparison-list {
      list-style: none;
      padding: 0;
      margin: 0;
      display: flex;
      flex-direction: column;
      gap: 8px;
    }
    .comparison-list li {
      display: flex;
      align-items: flex-start;
      gap: 8px;
      color: var(--text-muted);
      font-size: 0.9rem;
    }
    .comparison-list li i {
      margin-top: 4px;
      color: #D32F2F;
    }
    .comparison-card.good .comparison-list li i {
      color: var(--accent-amber);
    }

    /* FAQ */
    .faq-list {
      display: flex;
      flex-direction: column;
      gap: 12px;
      margin-top: var(--spacing-md);
    }
    .faq-item {
      background: rgba(28,28,30,0.55);
      border: 1px solid var(--border-dark);
      border-radius: var(--radius-md);
      overflow: hidden;
      transition: all var(--transition-base);
    }
    .faq-item:hover {
      border-color: var(--border-gold);
    }
    .faq-question {
      display: flex;
      justify-content: space-between;
      align-items: center;
      padding: 16px 20px;
      font-weight: 600;
      cursor: pointer;
      color: var(--text-white);
      gap: 12px;
    }
    .faq-question span:first-child {
      flex: 1;
    }
    .faq-question .fa-chevron-down {
      transition: transform var(--transition-base);
      color: var(--accent-amber);
    }
    .faq-item.active .fa-chevron-down {
      transform: rotate(180deg);
    }
    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.4s ease;
      color: var(--text-muted);
      font-size: 0.95rem;
      padding: 0 20px;
    }
    .faq-item.active .faq-answer {
      max-height: 250px;
      padding-bottom: 16px;
    }

    /* CTA form */
    .cta-section {
      position: relative;
      background:
        radial-gradient(ellipse at center, rgba(197,160,89,0.12), transparent 70%),
        var(--bg-secondary);
      border-top: 1px solid var(--border-dark);
      border-bottom: 1px solid var(--border-dark);
      padding: var(--spacing-xl) 0;
    }
    .cta-bg {
      position: absolute;
      inset: 0;
      background-image: url('/assets/images/backpic/back-3.jpg');
      background-size: cover;
      background-position: center;
      opacity: 0.14;
      pointer-events: none;
    }
    .cta-content {
      position: relative;
      z-index: 1;
      display: grid;
      grid-template-columns: 1fr;
      gap: var(--spacing-md);
      align-items: center;
    }
    @media (min-width: 768px) {
      .cta-content { grid-template-columns: 1fr 1fr; }
    }
    .cta-form-card {
      background: rgba(18,18,18,0.75);
      backdrop-filter: blur(12px);
      border: 1px solid var(--border-gold);
      border-radius: var(--radius-lg);
      padding: var(--spacing-md);
    }
    .cta-form-title {
      font-size: 1.3rem;
      font-weight: 700;
      margin-bottom: 12px;
    }
    .cta-input-group {
      display: flex;
      flex-direction: column;
      gap: 10px;
    }
    .cta-input {
      width: 100%;
      padding: 12px 16px;
      background: var(--bg-tertiary);
      border: 1px solid var(--border-dark);
      border-radius: 10px;
      color: var(--text-white);
      transition: border-color var(--transition-base);
      font-size: 0.95rem;
    }
    .cta-input::placeholder {
      color: var(--text-muted);
    }
    .cta-input:focus {
      outline: none;
      border-color: var(--accent-gold);
      box-shadow: 0 0 0 3px rgba(197,160,89,0.15);
    }
    .cta-disclaimer {
      font-size: 0.75rem;
      color: var(--text-muted);
      margin-top: 10px;
    }

    /* Footer */
    .site-footer {
      background: var(--bg-primary);
      border-top: 1px solid var(--border-dark);
      padding: var(--spacing-lg) 0 var(--spacing-sm);
      margin-top: 0;
    }
    .footer-grid {
      display: grid;
      grid-template-columns: 1fr;
      gap: var(--spacing-md);
      margin-bottom: var(--spacing-md);
    }
    @media (min-width: 640px) {
      .footer-grid { grid-template-columns: repeat(2, 1fr); }
    }
    @media (min-width: 1024px) {
      .footer-grid { grid-template-columns: 1.5fr 1fr 1fr 1fr; }
    }
    .footer-brand p {
      color: var(--text-muted);
      font-size: 0.9rem;
      margin: 12px 0 16px;
    }
    .footer-badges {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
    }
    .footer-badge {
      padding: 6px 12px;
      border-radius: 30px;
      border: 1px solid var(--border-dark);
      background: rgba(28,28,30,0.6);
      color: var(--text-muted);
      font-size: 0.7rem;
      font-weight: 600;
      letter-spacing: 0.02em;
    }
    .footer-badge.gold {
      border-color: var(--border-gold);
      color: var(--accent-amber);
      background: rgba(197,160,89,0.1);
    }
    .footer-col h4 {
      font-size: 0.9rem;
      font-weight: 700;
      color: var(--text-white);
      margin-bottom: 12px;
    }
    .footer-col ul {
      list-style: none;
      padding: 0;
      margin: 0;
    }
    .footer-col li {
      margin-bottom: 8px;
    }
    .footer-col a,
    .footer-col span {
      color: var(--text-muted);
      font-size: 0.88rem;
      transition: color var(--transition-base);
    }
    .footer-col a:hover {
      color: var(--accent-amber);
    }
    .footer-bottom {
      display: flex;
      flex-direction: column;
      gap: 12px;
      padding-top: var(--spacing-sm);
      border-top: 1px solid var(--border-dark);
      align-items: flex-start;
    }
    @media (min-width: 768px) {
      .footer-bottom { flex-direction: row; justify-content: space-between; align-items: center; }
    }
    .footer-copyright {
      color: var(--text-muted);
      font-size: 0.78rem;
    }

    /* FAB */
    .fab {
      position: fixed;
      left: 16px;
      bottom: 96px;
      z-index: 50;
      width: 56px;
      height: 56px;
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      background: rgba(0,0,0,0.5);
      backdrop-filter: blur(10px);
      border: 2px solid transparent;
      background-clip: padding-box;
      box-shadow: 0 0 15px rgba(0,240,255,0.5);
      animation: fabBorder 3s linear infinite;
      opacity: 0.6;
      transition: all 0.3s ease;
      cursor: pointer;
      position: fixed;
    }
    .fab:before {
      content: '';
      position: absolute;
      top: -2px; left: -2px; right: -2px; bottom: -2px;
      border-radius: 50%;
      background: linear-gradient(135deg, #00F0FF, #CCFF00);
      z-index: -1;
      background-size: 300% 300%;
      animation: gradientShift 4s ease infinite;
    }
    .fab i {
      font-size: 1.6rem;
      color: #fff;
      text-shadow: 0 0 8px rgba(0,240,255,0.9);
    }
    .fab:hover {
      opacity: 1;
      transform: scale(1.1);
      box-shadow: 0 0 25px rgba(0,240,255,0.8);
      animation-play-state: paused;
    }
    .fab:active {
      transform: scale(0.95);
    }
    .fab-notification {
      position: absolute;
      top: 2px;
      right: 2px;
      width: 12px;
      height: 12px;
      background: #FF007F;
      border-radius: 50%;
      border: 2px solid rgba(0,0,0,0.6);
      animation: pulse 2s infinite;
    }
    @keyframes fabBorder {
      0% { box-shadow: 0 0 15px rgba(0,240,255,0.5); }
      50% { box-shadow: 0 0 25px rgba(0,240,255,0.9); }
      100% { box-shadow: 0 0 15px rgba(0,240,255,0.5); }
    }
    @keyframes gradientShift {
      0% { background-position: 0% 50%; }
      50% { background-position: 100% 50%; }
      100% { background-position: 0% 50%; }
    }
    @keyframes pulse {
      0%, 100% { transform: scale(1); }
      50% { transform: scale(1.4); }
    }

/* roulang page: category2 */
:root {
            --bg-primary: #121212;
            --bg-secondary: #1C1C1E;
            --bg-tertiary: #232327;
            --accent-gold: #C5A059;
            --accent-amber: #FFBF00;
            --accent-muted: #D4AC0D;
            --text-white: #F5F5F7;
            --text-muted: #A6A6AE;
            --text-gold: #D4AC0D;
            --border-dark: #2C2C30;
            --border-gold: rgba(197, 160, 89, 0.3);
            --shadow-gold: 0 4px 20px rgba(197, 160, 89, 0.15);
            --shadow-deep: 0 12px 40px rgba(0,0,0,0.5);
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --spacing-xs: 8px;
            --spacing-sm: 16px;
            --spacing-md: 24px;
            --spacing-lg: 40px;
            --spacing-xl: 64px;
            --spacing-2xl: 88px;
            --font-primary: 'Be Vietnam Pro', ui-sans-serif, system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
            --transition-base: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
            --transition-smooth: 0.4s cubic-bezier(0.16, 1, 0.3, 1);
        }

        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body {
            font-family: var(--font-primary);
            background-color: var(--bg-primary);
            color: var(--text-white);
            line-height: 1.6;
            min-height: 100vh;
            display: flex;
            flex-direction: column;
            overflow-x: hidden;
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: color var(--transition-base);
        }

        a:focus-visible,
        button:focus-visible,
        input:focus-visible,
        summary:focus-visible {
            outline: 2px solid var(--accent-amber);
            outline-offset: 3px;
            border-radius: 4px;
        }

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

        button {
            font-family: inherit;
            cursor: pointer;
            border: none;
            background: none;
            color: inherit;
        }

        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 var(--spacing-sm);
        }

        @media (min-width: 640px) {
            .container { padding: 0 var(--spacing-md); }
        }

        @media (min-width: 1024px) {
            .container { padding: 0 var(--spacing-lg); }
        }

        /* ===== Header / Navigation ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 100;
            background: rgba(18, 18, 18, 0.88);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--border-dark);
            transition: box-shadow var(--transition-base), background var(--transition-base);
        }

        .site-header.scrolled {
            background: rgba(18, 18, 18, 0.96);
            box-shadow: 0 4px 24px rgba(0, 0, 0, 0.45);
            border-bottom-color: var(--border-gold);
        }

        .nav-wrapper {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 68px;
            gap: var(--spacing-sm);
        }

        .nav-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
            font-weight: 800;
            font-size: 1.05rem;
            letter-spacing: -0.01em;
            color: var(--text-white);
            white-space: nowrap;
        }

        .nav-logo-icon {
            width: 36px;
            height: 36px;
            border-radius: 10px;
            background: linear-gradient(135deg, var(--accent-gold), var(--accent-amber));
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
            color: #121212;
            flex-shrink: 0;
            box-shadow: 0 2px 12px rgba(255, 191, 0, 0.3);
        }

        .nav-logo span {
            color: var(--accent-amber);
        }

        .nav-links {
            display: none;
            align-items: center;
            gap: 6px;
            flex: 1;
            justify-content: center;
            list-style: none;
            padding: 0 8px;
        }

        .nav-links li {
            position: relative;
        }

        .nav-links a {
            display: block;
            padding: 8px 14px;
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-muted);
            border-radius: 8px;
            transition: color var(--transition-base), background var(--transition-base);
            white-space: nowrap;
        }

        .nav-links a:hover {
            color: var(--text-white);
            background: rgba(255, 191, 0, 0.08);
        }

        .nav-links a.active {
            color: var(--accent-amber);
            background: rgba(197, 160, 89, 0.12);
            font-weight: 600;
        }

        .nav-links a.active::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 2px;
            background: var(--accent-amber);
            border-radius: 2px;
        }

        .nav-auth {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }

        .btn-login {
            padding: 8px 16px;
            font-size: 0.88rem;
            font-weight: 600;
            color: var(--text-white);
            border-radius: 8px;
            border: 1px solid var(--border-dark);
            background: transparent;
            transition: all var(--transition-base);
            white-space: nowrap;
        }

        .btn-login:hover {
            border-color: var(--accent-gold);
            color: var(--accent-amber);
            background: rgba(197, 160, 89, 0.08);
        }

        .btn-signup {
            padding: 8px 20px;
            font-size: 0.88rem;
            font-weight: 700;
            color: #121212;
            border-radius: 8px;
            background: linear-gradient(135deg, var(--accent-gold), var(--accent-amber));
            box-shadow: 0 2px 14px rgba(255, 191, 0, 0.35);
            transition: all var(--transition-base);
            white-space: nowrap;
        }

        .btn-signup:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 24px rgba(255, 191, 0, 0.5);
        }

        .btn-signup:active {
            transform: translateY(0);
            box-shadow: 0 2px 8px rgba(255, 191, 0, 0.3);
        }

        .nav-toggle {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 42px;
            height: 42px;
            border-radius: 10px;
            background: var(--bg-secondary);
            border: 1px solid var(--border-dark);
            color: var(--text-white);
            transition: all var(--transition-base);
            flex-shrink: 0;
        }

        .nav-toggle:hover {
            border-color: var(--accent-gold);
            color: var(--accent-amber);
        }

        .mobile-menu {
            display: none;
            flex-direction: column;
            padding: var(--spacing-sm);
            border-top: 1px solid var(--border-dark);
            background: rgba(18, 18, 18, 0.98);
        }

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

        .mobile-menu a {
            padding: 12px 8px;
            border-radius: 8px;
            font-weight: 500;
            color: var(--text-muted);
        }

        .mobile-menu a:hover,
        .mobile-menu a.active {
            color: var(--accent-amber);
            background: rgba(197, 160, 89, 0.1);
        }

        @media (min-width: 1024px) {
            .nav-links { display: flex; }
            .nav-toggle { display: none; }
            .mobile-menu { display: none !important; }
        }

        @media (max-width: 1023px) {
            .nav-auth .btn-login,
            .nav-auth .btn-signup {
                display: none;
            }
            .nav-auth .btn-login.force-mobile,
            .nav-auth .btn-signup.force-mobile {
                display: inline-flex;
            }
        }

        /* ===== FAB ===== */
        .fab-left {
            position: fixed;
            left: 16px;
            bottom: 96px;
            z-index: 90;
            display: flex;
            align-items: center;
            justify-content: center;
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: rgba(18, 18, 18, 0.75);
            backdrop-filter: blur(12px);
            border: 1px solid var(--border-gold);
            box-shadow: var(--shadow-gold), 0 0 15px rgba(0,240,255,0.0);
            opacity: 0.7;
            transition: all var(--transition-base);
        }

        .fab-left:hover {
            opacity: 1;
            transform: scale(1.1);
            box-shadow: 0 0 25px rgba(197, 160, 89, 0.4);
        }

        .fab-left:active {
            transform: scale(0.95) translateY(1px);
        }

        .fab-left .fab-icon {
            font-size: 1.6rem;
            color: var(--accent-amber);
        }

        .fab-left .fab-notification {
            position: absolute;
            top: 6px;
            right: 6px;
            width: 10px;
            height: 10px;
            background: #D32F2F;
            border-radius: 50%;
            animation: blink 1.2s infinite;
        }

        @keyframes blink {
            0%, 100% { opacity: 1; }
            50% { opacity: 0.2; }
        }

        /* ===== Hero ===== */
        .hero-category {
            position: relative;
            padding: 120px 0 80px;
            background: radial-gradient(ellipse at 20% 20%, rgba(197,160,89,0.12), transparent 60%),
                        radial-gradient(ellipse at 80% 80%, rgba(255,191,0,0.08), transparent 55%),
                        var(--bg-primary);
        }

        .hero-category::before {
            content: '';
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-2.jpg');
            background-size: cover;
            background-position: center;
            opacity: 0.18;
            pointer-events: none;
        }

        .hero-category .container {
            position: relative;
            z-index: 1;
        }

        .hero-category-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: var(--spacing-lg);
            align-items: center;
        }

        @media (min-width: 1024px) {
            .hero-category-grid {
                grid-template-columns: 1.1fr 0.9fr;
                gap: var(--spacing-xl);
            }
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 6px 14px;
            background: rgba(197, 160, 89, 0.15);
            border: 1px solid var(--border-gold);
            border-radius: 999px;
            font-size: 0.8rem;
            font-weight: 600;
            color: var(--accent-amber);
            margin-bottom: var(--spacing-sm);
        }

        .hero-badge .dot {
            width: 6px;
            height: 6px;
            background: var(--accent-amber);
            border-radius: 50%;
            animation: pulse-dot 1.5s infinite;
        }

        @keyframes pulse-dot {
            0%, 100% { box-shadow: 0 0 0 0 rgba(255,191,0,0.5); }
            50% { box-shadow: 0 0 0 6px rgba(255,191,0,0); }
        }

        .hero-category h1 {
            font-size: 2.2rem;
            font-weight: 800;
            line-height: 1.2;
            letter-spacing: -0.02em;
            margin-bottom: var(--spacing-sm);
        }

        .hero-category .hero-subtitle {
            font-size: 1.05rem;
            color: var(--text-muted);
            margin-bottom: var(--spacing-md);
            max-width: 540px;
        }

        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: var(--spacing-sm);
            align-items: center;
            margin-top: var(--spacing-md);
        }

        .btn-primary {
            padding: 14px 28px;
            border-radius: 12px;
            background: linear-gradient(135deg, var(--accent-gold), var(--accent-amber));
            color: #121212;
            font-weight: 700;
            font-size: 1rem;
            box-shadow: 0 4px 18px rgba(255,191,0,0.3);
            transition: all var(--transition-base);
        }

        .btn-primary:hover {
            transform: translateY(-3px);
            box-shadow: 0 8px 28px rgba(255,191,0,0.45);
        }

        .btn-secondary {
            padding: 14px 24px;
            border-radius: 12px;
            border: 1px solid var(--border-dark);
            background: var(--bg-secondary);
            color: var(--text-white);
            font-weight: 600;
            transition: all var(--transition-base);
        }

        .btn-secondary:hover {
            border-color: var(--accent-gold);
            color: var(--accent-amber);
            background: rgba(197,160,89,0.08);
        }

        .countdown-ring {
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            background: rgba(28, 28, 30, 0.7);
            border: 1px solid var(--border-dark);
            border-radius: var(--radius-lg);
            padding: var(--spacing-md);
            backdrop-filter: blur(8px);
            box-shadow: var(--shadow-deep);
        }

        .countdown-ring .ring-label {
            font-size: 0.85rem;
            color: var(--text-muted);
            margin-bottom: var(--spacing-sm);
            font-weight: 500;
        }

        .countdown-timer {
            display: flex;
            gap: var(--spacing-xs);
            justify-content: center;
            flex-wrap: wrap;
        }

        .countdown-timer .time-block {
            display: flex;
            flex-direction: column;
            align-items: center;
            background: rgba(18,18,18,0.6);
            border: 1px solid var(--border-gold);
            border-radius: var(--radius-sm);
            padding: 8px 12px;
            min-width: 50px;
        }

        .countdown-timer .time-value {
            font-size: 1.8rem;
            font-weight: 800;
            color: var(--accent-amber);
            line-height: 1;
        }

        .countdown-timer .time-unit {
            font-size: 0.75rem;
            color: var(--text-muted);
            margin-top: 4px;
        }

        .hero-side-visual {
            position: relative;
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--border-dark);
            box-shadow: var(--shadow-deep);
            background: var(--bg-secondary);
        }

        .hero-side-visual img {
            width: 100%;
            height: 280px;
            object-fit: cover;
            opacity: 0.85;
        }

        .hero-side-visual .overlay-info {
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            padding: var(--spacing-md);
            background: linear-gradient(180deg, transparent, rgba(18,18,18,0.95));
        }

        .hero-side-visual .overlay-info h3 {
            font-size: 1.1rem;
            font-weight: 700;
            margin-bottom: 4px;
        }

        .hero-side-visual .overlay-info p {
            font-size: 0.9rem;
            color: var(--text-muted);
        }

        /* ===== Section base ===== */
        .section {
            padding: var(--spacing-xl) 0;
        }

        .section-header {
            margin-bottom: var(--spacing-lg);
            text-align: left;
        }

        .section-header h2 {
            font-size: 1.8rem;
            font-weight: 800;
            letter-spacing: -0.01em;
            margin-bottom: var(--spacing-xs);
        }

        .section-header p {
            color: var(--text-muted);
            max-width: 650px;
        }

        .glass-card {
            background: rgba(28, 28, 30, 0.6);
            border: 1px solid var(--border-dark);
            border-radius: var(--radius-md);
            padding: var(--spacing-md);
            backdrop-filter: blur(10px);
            transition: all var(--transition-base);
        }

        .glass-card:hover {
            border-color: var(--border-gold);
            transform: translateY(-4px);
            box-shadow: var(--shadow-gold);
        }

        .grid-3 {
            display: grid;
            grid-template-columns: 1fr;
            gap: var(--spacing-md);
        }

        @media (min-width: 640px) {
            .grid-3 { grid-template-columns: repeat(2, 1fr); }
        }

        @media (min-width: 1024px) {
            .grid-3 { grid-template-columns: repeat(3, 1fr); }
        }

        .grid-2 {
            display: grid;
            grid-template-columns: 1fr;
            gap: var(--spacing-md);
        }

        @media (min-width: 768px) {
            .grid-2 { grid-template-columns: 1fr 1fr; }
        }

        .feature-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 48px;
            height: 48px;
            border-radius: 12px;
            background: rgba(197,160,89,0.15);
            color: var(--accent-amber);
            font-size: 1.5rem;
            margin-bottom: var(--spacing-sm);
        }

        .step-list {
            list-style: none;
            padding: 0;
            display: flex;
            flex-direction: column;
            gap: var(--spacing-sm);
        }

        .step-item {
            display: flex;
            gap: var(--spacing-sm);
            align-items: flex-start;
            padding: var(--spacing-sm);
            border-radius: var(--radius-sm);
            background: rgba(28,28,30,0.4);
            border: 1px solid transparent;
            transition: all var(--transition-base);
        }

        .step-item:hover {
            border-color: var(--border-gold);
            background: rgba(197,160,89,0.06);
        }

        .step-number {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 32px;
            height: 32px;
            border-radius: 50%;
            background: var(--accent-amber);
            color: #121212;
            font-weight: 800;
            flex-shrink: 0;
            margin-top: 2px;
        }

        .step-item h4 {
            font-weight: 700;
            margin-bottom: 4px;
        }

        .step-item p {
            color: var(--text-muted);
            font-size: 0.95rem;
        }

        /* ===== FAQ ===== */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: var(--spacing-sm);
        }

        details {
            border-radius: var(--radius-sm);
            border: 1px solid var(--border-dark);
            background: var(--bg-secondary);
            overflow: hidden;
        }

        details summary {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 14px 18px;
            font-weight: 600;
            cursor: pointer;
            list-style: none;
            transition: background var(--transition-base);
        }

        details summary::-webkit-details-marker {
            display: none;
        }

        details summary::after {
            content: '+';
            font-size: 1.5rem;
            color: var(--accent-amber);
            transition: transform var(--transition-base);
        }

        details[open] summary::after {
            transform: rotate(45deg);
        }

        details summary:hover {
            background: rgba(197,160,89,0.06);
        }

        details .faq-content {
            padding: 0 18px 16px;
            color: var(--text-muted);
            font-size: 0.95rem;
        }

        /* ===== CTA ===== */
        .cta-section {
            padding: var(--spacing-xl) 0;
            background: radial-gradient(ellipse at center, rgba(197,160,89,0.15), transparent 70%),
                        var(--bg-primary);
        }

        .cta-box {
            background: rgba(28,28,30,0.65);
            border: 1px solid var(--border-gold);
            border-radius: var(--radius-lg);
            padding: var(--spacing-lg);
            text-align: center;
            backdrop-filter: blur(12px);
            box-shadow: var(--shadow-gold);
        }

        .cta-box h2 {
            font-size: 1.8rem;
            font-weight: 800;
            margin-bottom: var(--spacing-sm);
        }

        .cta-box p {
            color: var(--text-muted);
            margin-bottom: var(--spacing-md);
            max-width: 560px;
            margin-left: auto;
            margin-right: auto;
        }

        /* ===== Footer ===== */
        .site-footer {
            margin-top: auto;
            background: var(--bg-secondary);
            border-top: 1px solid var(--border-dark);
            padding: var(--spacing-xl) 0 var(--spacing-md);
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: var(--spacing-lg);
        }

        @media (min-width: 640px) {
            .footer-grid { grid-template-columns: repeat(2, 1fr); }
        }

        @media (min-width: 1024px) {
            .footer-grid { grid-template-columns: 1.5fr 1fr 1fr 1fr; }
        }

        .footer-brand p {
            color: var(--text-muted);
            font-size: 0.9rem;
            margin: var(--spacing-sm) 0;
            max-width: 340px;
        }

        .footer-col h4 {
            font-size: 1rem;
            font-weight: 700;
            margin-bottom: var(--spacing-sm);
            color: var(--text-white);
        }

        .footer-col ul {
            list-style: none;
            padding: 0;
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

        .footer-col ul a {
            color: var(--text-muted);
            font-size: 0.9rem;
            transition: color var(--transition-base);
        }

        .footer-col ul a:hover {
            color: var(--accent-amber);
        }

        .footer-col ul span {
            font-size: 0.9rem;
        }

        .footer-badges {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            margin-top: var(--spacing-sm);
        }

        .footer-badge {
            padding: 4px 10px;
            border-radius: 999px;
            border: 1px solid var(--border-dark);
            background: rgba(255,255,255,0.03);
            font-size: 0.75rem;
            font-weight: 600;
            color: var(--text-muted);
        }

        .footer-badge.gold {
            border-color: var(--border-gold);
            color: var(--accent-amber);
            background: rgba(197,160,89,0.08);
        }

        .footer-bottom {
            margin-top: var(--spacing-lg);
            padding-top: var(--spacing-md);
            border-top: 1px solid var(--border-dark);
            display: flex;
            flex-direction: column;
            gap: var(--spacing-sm);
            align-items: flex-start;
        }

        @media (min-width: 768px) {
            .footer-bottom {
                flex-direction: row;
                justify-content: space-between;
                align-items: center;
            }
        }

        .footer-copyright {
            color: var(--text-muted);
            font-size: 0.85rem;
        }

        /* Responsive tweaks */
        @media (max-width: 640px) {
            .hero-category h1 { font-size: 1.8rem; }
            .section-header h2 { font-size: 1.5rem; }
            .cta-box h2 { font-size: 1.5rem; }
            .nav-logo { font-size: 0.9rem; }
            .nav-logo-icon { width: 32px; height: 32px; font-size: 1rem; }
        }