:root {
      --page-b52club-primary-color: #f7931e; /* Màu cam nổi bật */
      --page-b52club-secondary-color: #333; /* Màu chữ chính */
      --page-b52club-accent-color: #e44d26; /* Màu nhấn */
      --page-b52club-background-light: #f8f8f8;
      --page-b52club-background-dark: #2c2c2c;
      --page-b52club-text-light: #fff;
      --page-b52club-text-dark: #333;
      --page-b52club-border-color: #eee;
    }

    .page-b52club {
      font-family: 'Arial', sans-serif;
      line-height: 1.6;
      color: var(--page-b52club-secondary-color);
      background-color: var(--page-b52club-background-light);
      padding: 20px 0;
    }

    .page-b52club-container {
      max-width: 1200px;
      margin: 0 auto;
      padding: 0 15px;
    }

    .page-b52club-hero {
      background: linear-gradient(135deg, var(--page-b52club-primary-color), var(--page-b52club-accent-color));
      color: var(--page-b52club-text-light);
      padding: 60px 20px;
      text-align: center;
      border-radius: 8px;
      margin-bottom: 40px;
      position: relative;
      overflow: hidden;
    }

    .page-b52club-hero::before {
      content: '';
      position: absolute;
      top: 0;
      left: 0;
      width: 100%;
      height: 100%;
      background: url('[GALLERY:pattern:abstract,geometric,light]') no-repeat center center/cover;
      opacity: 0.1;
      z-index: 0;
    }

    .page-b52club-hero-content {
      position: relative;
      z-index: 1;
    }

    .page-b52club-hero h1 {
      font-size: 2.8em;
      margin-bottom: 15px;
      color: var(--page-b52club-text-light);
      text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
    }

    .page-b52club-hero p {
      font-size: 1.2em;
      margin-bottom: 30px;
      max-width: 800px;
      margin-left: auto;
      margin-right: auto;
    }

    .page-b52club-btn {
      display: inline-block;
      background-color: #333; /* Đảm bảo độ tương phản tốt */
      color: #fff;
      padding: 15px 30px;
      border-radius: 50px;
      text-decoration: none;
      font-weight: bold;
      font-size: 1.1em;
      transition: background-color 0.3s ease, transform 0.2s ease;
      border: 2px solid transparent;
    }

    .page-b52club-btn:hover {
      background-color: var(--page-b52club-text-light);
      color: var(--page-b52club-primary-color);
      transform: translateY(-3px);
      border-color: var(--page-b52club-primary-color);
    }

    .page-b52club-section {
      background-color: var(--page-b52club-text-light);
      padding: 40px;
      border-radius: 8px;
      box-shadow: 0 4px 10px rgba(0, 0, 0, 0.05);
      margin-bottom: 30px;
    }

    .page-b52club-section h2 {
      font-size: 2em;
      color: var(--page-b52club-primary-color);
      margin-bottom: 25px;
      text-align: center;
      position: relative;
    }

    .page-b52club-section h2::after {
      content: '';
      display: block;
      width: 60px;
      height: 4px;
      background-color: var(--page-b52club-accent-color);
      margin: 10px auto 0;
      border-radius: 2px;
    }

    .page-b52club-section h3 {
      font-size: 1.5em;
      color: var(--page-b52club-secondary-color);
      margin-top: 30px;
      margin-bottom: 15px;
      border-left: 5px solid var(--page-b52club-primary-color);
      padding-left: 10px;
    }

    .page-b52club-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
      gap: 25px;
      margin-top: 30px;
    }

    .page-b52club-card {
      background-color: var(--page-b52club-background-light);
      border-radius: 8px;
      padding: 25px;
      box-shadow: 0 2px 5px rgba(0, 0, 0, 0.05);
      text-align: center;
      transition: transform 0.3s ease, box-shadow 0.3s ease;
    }

    .page-b52club-card:hover {
      transform: translateY(-5px);
      box-shadow: 0 6px 15px rgba(0, 0, 0, 0.1);
    }

    .page-b52club-card img {
      max-width: 100%;
      height: 150px;
      object-fit: contain;
      margin-bottom: 15px;
      border-radius: 4px;
    }

    .page-b52club-card h4 {
      font-size: 1.3em;
      color: var(--page-b52club-primary-color);
      margin-bottom: 10px;
    }

    .page-b52club-card p {
      font-size: 0.95em;
      color: var(--page-b52club-secondary-color);
    }

    .page-b52club-list {
      list-style: none;
      padding: 0;
      margin-top: 20px;
    }

    .page-b52club-list li {
      background-color: var(--page-b52club-background-light);
      margin-bottom: 10px;
      padding: 15px 20px;
      border-radius: 5px;
      display: flex;
      align-items: center;
      box-shadow: 0 1px 3px rgba(0, 0, 0, 0.03);
    }

    .page-b52club-list li::before {
      content: '✔';
      color: var(--page-b52club-primary-color);
      margin-right: 10px;
      font-weight: bold;
      font-size: 1.2em;
    }

    .page-b52club-promo-banner {
      position: fixed;
      bottom: 20px;
      right: 20px;
      background-color: var(--page-b52club-accent-color);
      color: var(--page-b52club-text-light);
      padding: 15px 25px;
      border-radius: 10px;
      box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
      z-index: 1000;
      display: flex;
      align-items: center;
      gap: 15px;
      animation: page-b52club-float 3s ease-in-out infinite;
    }

    .page-b52club-promo-banner span {
      font-weight: bold;
      font-size: 1.1em;
    }

    .page-b52club-promo-banner a {
      background-color: var(--page-b52club-primary-color);
      color: var(--page-b52club-text-light);
      padding: 10px 20px;
      border-radius: 25px;
      text-decoration: none;
      font-weight: bold;
      transition: background-color 0.3s ease;
    }

    .page-b52club-promo-banner a:hover {
      background-color: #ffb74d; /* Màu cam nhạt hơn */
    }

    @keyframes page-b52club-float {
      0% { transform: translateY(0px); }
      50% { transform: translateY(-10px); }
      100% { transform: translateY(0px); }
    }

    /* Responsive adjustments */
    @media (max-width: 768px) {
      .page-b52club-hero h1 {
        font-size: 2em;
      }
      .page-b52club-hero p {
        font-size: 1em;
      }
      .page-b52club-btn {
        padding: 12px 25px;
        font-size: 1em;
      }
      .page-b52club-section {
        padding: 30px 20px;
      }
      .page-b52club-section h2 {
        font-size: 1.8em;
      }
      .page-b52club-grid {
        grid-template-columns: 1fr;
      }
      .page-b52club-promo-banner {
        bottom: 10px;
        right: 10px;
        padding: 10px 15px;
        font-size: 0.9em;
        gap: 10px;
      }
      .page-b52club-promo-banner a {
        padding: 8px 15px;
        font-size: 0.9em;
      }
    }