/* CSS cho trang tx88 */
    :root {
      --page-tx88-primary-color: #FFD700; /* Vàng */
      --page-tx88-secondary-color: #333333; /* Xám đậm */
      --page-tx88-accent-color: #FF4500; /* Đỏ cam */
      --page-tx88-text-light: #FFFFFF;
      --page-tx88-text-dark: #333333;
      --page-tx88-bg-light: #F8F8F8;
      --page-tx88-bg-dark: #1A1A1A;
      --page-tx88-border-color: #555555;
      --page-tx88-shadow: rgba(0, 0, 0, 0.2);
    }

    .page-tx88 {
      font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
      line-height: 1.6;
      color: var(--page-tx88-text-dark);
      background-color: var(--page-tx88-bg-light);
      padding-bottom: 80px; /* Khoảng trống cho nút nổi */
    }

    .page-tx88-section {
      padding: 40px 20px;
      max-width: 1200px;
      margin: 0 auto;
      text-align: center;
    }

    .page-tx88-section:nth-of-type(even) {
      background-color: var(--page-tx88-bg-dark);
      color: var(--page-tx88-text-light);
    }

    .page-tx88-section:nth-of-type(even) h2,
    .page-tx88-section:nth-of-type(even) h3 {
      color: var(--page-tx88-primary-color);
    }

    .page-tx88-section:nth-of-type(even) p,
    .page-tx88-section:nth-of-type(even) li {
      color: #E0E0E0;
    }

    .page-tx88-section-title {
      font-size: 2.5em;
      margin-bottom: 20px;
      color: var(--page-tx88-secondary-color);
      position: relative;
      padding-bottom: 10px;
    }

    .page-tx88-section-title::after {
      content: '';
      position: absolute;
      left: 50%;
      bottom: 0;
      transform: translateX(-50%);
      width: 80px;
      height: 4px;
      background-color: var(--page-tx88-primary-color);
      border-radius: 2px;
    }

    .page-tx88-section:nth-of-type(even) .page-tx88-section-title {
      color: var(--page-tx88-primary-color);
    }

    .page-tx88-section-title span {
      color: var(--page-tx88-accent-color);
    }

    .page-tx88-hero {
      position: relative;
      background-color: var(--page-tx88-secondary-color);
      color: var(--page-tx88-text-light);
      padding: 60px 20px 40px;
      display: flex;
      flex-direction: column;
      align-items: center;
      justify-content: center;
      min-height: 400px; /* Đảm bảo banner không quá nhỏ */
      overflow: hidden;
    }

    .page-tx88-hero-banner {
      position: absolute;
      top: 0;
      left: 0;
      width: 100%;
      height: 100%;
      object-fit: cover;
      opacity: 0.4;
      z-index: 0;
    }

    .page-tx88-hero-content {
      position: relative;
      z-index: 1;
      text-align: center;
      max-width: 900px;
    }

    .page-tx88-hero h1 {
      font-size: 2.8em;
      margin-bottom: 15px;
      color: var(--page-tx88-primary-color);
      text-shadow: 2px 2px 4px var(--page-tx88-shadow);
    }

    .page-tx88-hero p {
      font-size: 1.2em;
      margin-bottom: 30px;
      color: #E0E0E0;
    }

    .page-tx88-btn {
      display: inline-block;
      background-color: var(--page-tx88-accent-color);
      color: var(--page-tx88-text-light);
      padding: 12px 25px;
      border-radius: 8px;
      text-decoration: none;
      font-weight: bold;
      font-size: 1.1em;
      transition: background-color 0.3s ease, transform 0.2s ease;
      box-shadow: 0 4px 10px var(--page-tx88-shadow);
      border: none;
      cursor: pointer;
    }

    .page-tx88-btn:hover {
      background-color: #E63900;
      transform: translateY(-2px);
    }

    .page-tx88-floating-btn {
      position: fixed;
      bottom: 20px;
      left: 50%;
      transform: translateX(-50%);
      background-color: var(--page-tx88-primary-color);
      color: var(--page-tx88-secondary-color);
      padding: 15px 30px;
      border-radius: 50px;
      font-weight: bold;
      font-size: 1.2em;
      box-shadow: 0 6px 15px var(--page-tx88-shadow);
      z-index: 1000;
      display: flex;
      align-items: center;
      gap: 10px;
      animation: page-tx88-pulse 2s infinite;
      text-decoration: none;
      white-space: nowrap; /* Ngăn nút xuống dòng */
    }

    .page-tx88-floating-btn img {
      width: 24px;
      height: 24px;
    }

    .page-tx88-floating-btn:hover {
      background-color: #FFC107;
      transform: translateX(-50%) translateY(-3px);
      animation: none;
    }

    @keyframes page-tx88-pulse {
      0% { transform: translateX(-50%) scale(1); box-shadow: 0 6px 15px var(--page-tx88-shadow); }
      50% { transform: translateX(-50%) scale(1.03); box-shadow: 0 8px 20px rgba(0, 0, 0, 0.4); }
      100% { transform: translateX(-50%) scale(1); box-shadow: 0 6px 15px var(--page-tx88-shadow); }
    }

    .page-tx88-about-grid {
      display: grid;
      grid-template-columns: 1fr;
      gap: 30px;
      text-align: left;
      margin-top: 30px;
    }

    .page-tx88-about-item {
      background-color: var(--page-tx88-bg-light);
      padding: 25px;
      border-radius: 10px;
      box-shadow: 0 4px 10px rgba(0, 0, 0, 0.05);
      border: 1px solid var(--page-tx88-border-color);
    }

    .page-tx88-section:nth-of-type(even) .page-tx88-about-item {
      background-color: #2A2A2A;
      border-color: #444444;
      color: #E0E0E0;
    }

    .page-tx88-about-item h3 {
      color: var(--page-tx88-primary-color);
      margin-bottom: 10px;
      font-size: 1.5em;
    }

    .page-tx88-game-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
      gap: 20px;
      margin-top: 30px;
    }

    .page-tx88-game-card {
      background-color: var(--page-tx88-bg-light);
      border-radius: 10px;
      overflow: hidden;
      box-shadow: 0 4px 10px rgba(0, 0, 0, 0.08);
      transition: transform 0.3s ease, box-shadow 0.3s ease;
      text-decoration: none;
      color: var(--page-tx88-text-dark);
      border: 1px solid var(--page-tx88-border-color);
    }

    .page-tx88-section:nth-of-type(even) .page-tx88-game-card {
      background-color: #2A2A2A;
      border-color: #444444;
      color: var(--page-tx88-text-light);
    }

    .page-tx88-game-card:hover {
      transform: translateY(-5px);
      box-shadow: 0 6px 15px rgba(0, 0, 0, 0.15);
    }

    .page-tx88-game-card img {
      width: 100%;
      height: 120px;
      object-fit: cover;
      display: block;
    }

    .page-tx88-game-card-title {
      padding: 15px 10px;
      font-weight: bold;
      font-size: 1.1em;
      color: var(--page-tx88-secondary-color);
    }

    .page-tx88-section:nth-of-type(even) .page-tx88-game-card-title {
      color: var(--page-tx88-primary-color);
    }

    .page-tx88-cta-banner {
      background-color: var(--page-tx88-primary-color);
      color: var(--page-tx88-secondary-color);
      padding: 50px 20px;
      margin-top: 40px;
      border-radius: 10px;
      box-shadow: 0 8px 20px rgba(0, 0, 0, 0.2);
    }

    .page-tx88-cta-banner h2 {
      font-size: 2.2em;
      margin-bottom: 15px;
    }

    .page-tx88-cta-banner p {
      font-size: 1.1em;
      margin-bottom: 30px;
      max-width: 700px;
      margin-left: auto;
      margin-right: auto;
    }

    .page-tx88-promo-grid {
      display: grid;
      grid-template-columns: 1fr;
      gap: 25px;
      margin-top: 30px;
      text-align: left;
    }

    .page-tx88-promo-card {
      background-color: var(--page-tx88-bg-light);
      padding: 25px;
      border-radius: 10px;
      box-shadow: 0 4px 10px rgba(0, 0, 0, 0.05);
      border: 1px solid var(--page-tx88-border-color);
    }

    .page-tx88-section:nth-of-type(even) .page-tx88-promo-card {
      background-color: #2A2A2A;
      border-color: #444444;
      color: #E0E0E0;
    }

    .page-tx88-promo-card h3 {
      color: var(--page-tx88-accent-color);
      margin-bottom: 10px;
      font-size: 1.5em;
    }

    .page-tx88-faq-list {
      list-style: none;
      padding: 0;
      margin-top: 30px;
      text-align: left;
    }

    .page-tx88-faq-item {
      background-color: var(--page-tx88-bg-light);
      margin-bottom: 15px;
      border-radius: 8px;
      overflow: hidden;
      box-shadow: 0 2px 5px rgba(0, 0, 0, 0.05);
      border: 1px solid var(--page-tx88-border-color);
    }

    .page-tx88-section:nth-of-type(even) .page-tx88-faq-item {
      background-color: #2A2A2A;
      border-color: #444444;
      color: #E0E0E0;
    }

    .page-tx88-faq-question {
      padding: 18px 20px;
      background-color: var(--page-tx88-primary-color);
      color: var(--page-tx88-secondary-color);
      font-weight: bold;
      cursor: pointer;
      display: flex;
      justify-content: space-between;
      align-items: center;
      font-size: 1.1em;
    }

    .page-tx88-faq-answer {
      padding: 15px 20px;
      background-color: #F0F0F0;
      border-top: 1px solid #DDDDDD;
      display: none;
      color: var(--page-tx88-text-dark);
    }

    .page-tx88-section:nth-of-type(even) .page-tx88-faq-answer {
      background-color: #3A3A3A;
      border-top-color: #555555;
      color: #E0E0E0;
    }

    .page-tx88-faq-answer p {
      margin: 0;
    }

    .page-tx88-faq-question::after {
      content: '+';
      font-size: 1.2em;
      transition: transform 0.3s ease;
    }

    .page-tx88-faq-item.active .page-tx88-faq-question::after {
      transform: rotate(45deg);
    }

    /* Responsive adjustments */
    @media (min-width: 768px) {
      .page-tx88-hero h1 {
        font-size: 3.5em;
      }
      .page-tx88-hero p {
        font-size: 1.3em;
      }
      .page-tx88-section-title {
        font-size: 3em;
      }
      .page-tx88-about-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .page-tx88-game-grid {
        grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
      }
      .page-tx88-game-card img {
        height: 150px;
      }
      .page-tx88-promo-grid {
        grid-template-columns: repeat(2, 1fr);
      }
    }

    @media (min-width: 1024px) {
      .page-tx88-about-grid {
        grid-template-columns: repeat(3, 1fr);
      }
      .page-tx88-game-grid {
        grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
      }
      .page-tx88-promo-grid {
        grid-template-columns: repeat(3, 1fr);
      }
    }