:root {
      --page-go88-primary-color: #007bff; /* Xanh dương */
      --page-go88-secondary-color: #6c757d; /* Xám */
      --page-go88-accent-color: #ffc107; /* Vàng */
      --page-go88-background-light: #f8f9fa; /* Trắng nhạt */
      --page-go88-background-dark: #212529; /* Đen nhạt */
      --page-go88-text-dark: #343a40; /* Xám đậm */
      --page-go88-text-light: #ffffff; /* Trắng */
      --page-go88-border-color: #dee2e6; /* Xám viền */
      --page-go88-mobile-banner-safety-height: 160px; /* An toàn cho menu nổi */
    }

    .page-go88 {
      font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif;
      line-height: 1.6;
      color: var(--page-go88-text-dark);
      background-color: var(--page-go88-background-light);
      padding-bottom: 80px; /* Đệm cho nút nổi */
    }

    .page-go88-section {
      padding: 40px 20px;
      margin-bottom: 20px;
      background-color: var(--page-go88-text-light);
      border-radius: 8px;
      box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
    }

    .page-go88-section-dark {
      background-color: var(--page-go88-background-dark);
      color: var(--page-go88-text-light);
    }

    .page-go88-container {
      max-width: 1200px;
      margin: 0 auto;
      padding: 0 15px;
    }

    .page-go88-hero-banner {
      position: relative;
      width: 100%;
      overflow: hidden;
      padding-top: var(--page-go88-mobile-banner-safety-height); /* Vùng an toàn cho menu nổi */
      margin-bottom: 20px;
      background-color: #333; /* Fallback background */
    }

    .page-go88-hero-image {
      display: block;
      width: 100%;
      height: auto;
      max-height: 400px; /* Giới hạn chiều cao cho banner */
      object-fit: contain; /* Giữ tỷ lệ gốc, không bị kéo giãn */
      margin: 0 auto;
      border-radius: 8px;
    }

    .page-go88-title {
      text-align: center;
      color: var(--page-go88-primary-color);
      margin-top: 20px;
      margin-bottom: 30px;
      font-size: 2.2em;
      font-weight: bold;
    }

    .page-go88-section-title {
      text-align: center;
      color: var(--page-go88-primary-color);
      margin-bottom: 30px;
      font-size: 1.8em;
      font-weight: bold;
    }

    .page-go88-section-dark .page-go88-section-title {
      color: var(--page-go88-accent-color);
    }

    .page-go88-text-center {
      text-align: center;
    }

    .page-go88-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
      gap: 20px;
      margin-top: 30px;
    }

    .page-go88-card {
      background-color: var(--page-go88-background-light);
      border: 1px solid var(--page-go88-border-color);
      border-radius: 8px;
      overflow: hidden;
      text-align: center;
      transition: transform 0.3s ease, box-shadow 0.3s ease;
      display: flex;
      flex-direction: column;
      align-items: center;
      justify-content: center;
      padding: 15px;
    }

    .page-go88-card:hover {
      transform: translateY(-5px);
      box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    }

    .page-go88-card-image {
      width: 100%;
      max-width: 120px;
      height: auto;
      margin-bottom: 15px;
      object-fit: contain;
      border-radius: 4px;
    }

    .page-go88-card-title {
      font-weight: bold;
      margin-bottom: 10px;
      color: var(--page-go88-text-dark);
      font-size: 1.1em;
    }

    .page-go88-card a {
      text-decoration: none;
      color: var(--page-go88-primary-color);
      font-weight: bold;
    }

    .page-go88-card a:hover {
      text-decoration: underline;
    }

    .page-go88-list {
      list-style: none;
      padding: 0;
      margin: 0;
    }

    .page-go88-list li {
      background-color: var(--page-go88-text-light);
      border: 1px solid var(--page-go88-border-color);
      padding: 15px;
      margin-bottom: 10px;
      border-radius: 5px;
      display: flex;
      align-items: center;
      color: var(--page-go88-text-dark);
    }

    .page-go88-list li::before {
      content: "✅";
      margin-right: 10px;
      font-size: 1.2em;
    }

    .page-go88-btn {
      display: inline-block;
      padding: 12px 25px;
      background-color: var(--page-go88-primary-color);
      color: var(--page-go88-text-light);
      text-decoration: none;
      border-radius: 5px;
      font-weight: bold;
      transition: background-color 0.3s ease, transform 0.2s ease;
      border: none;
      cursor: pointer;
      font-size: 1em;
    }

    .page-go88-btn:hover {
      background-color: #0056b3;
      transform: translateY(-2px);
    }

    .page-go88-floating-btn {
      position: fixed;
      bottom: 20px;
      left: 50%;
      transform: translateX(-50%);
      z-index: 1000;
      padding: 15px 30px;
      background-color: #dc3545; /* Đỏ nổi bật cho khuyến mãi */
      color: var(--page-go88-text-light);
      text-decoration: none;
      border-radius: 50px;
      font-weight: bold;
      font-size: 1.1em;
      box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
      animation: page-go88-pulse 2s infinite;
      white-space: nowrap; /* Ngăn ngắt dòng */
    }

    .page-go88-floating-btn:hover {
      background-color: #c82333;
      animation: none;
    }

    @keyframes page-go88-pulse {
      0% { transform: translateX(-50%) scale(1); }
      50% { transform: translateX(-50%) scale(1.05); }
      100% { transform: translateX(-50%) scale(1); }
    }

    .page-go88-game-providers-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(80px, 1fr));
      gap: 15px;
      justify-items: center;
      align-items: center;
    }

    .page-go88-provider-logo {
      width: 100%;
      max-width: 100px;
      height: auto;
      object-fit: contain;
      filter: grayscale(100%);
      transition: filter 0.3s ease;
    }

    .page-go88-provider-logo:hover {
      filter: grayscale(0%);
    }

    .page-go88-faq-item {
      margin-bottom: 15px;
      border: 1px solid var(--page-go88-border-color);
      border-radius: 5px;
      overflow: hidden;
    }

    .page-go88-faq-question {
      background-color: var(--page-go88-primary-color);
      color: var(--page-go88-text-light);
      padding: 15px 20px;
      cursor: pointer;
      font-weight: bold;
      display: flex;
      justify-content: space-between;
      align-items: center;
    }

    .page-go88-faq-question:hover {
      background-color: #0056b3;
    }

    .page-go88-faq-answer {
      padding: 15px 20px;
      background-color: var(--page-go88-text-light);
      border-top: 1px solid var(--page-go88-border-color);
      display: none; /* Hidden by default */
    }

    .page-go88-faq-answer.active {
      display: block;
    }

    .page-go88-faq-question .page-go88-icon {
      font-size: 1.2em;
      transition: transform 0.3s ease;
    }

    .page-go88-faq-question.active .page-go88-icon {
      transform: rotate(180deg);
    }

    /* Responsive adjustments */
    @media (max-width: 768px) {
      .page-go88-title {
        font-size: 1.8em;
      }
      .page-go88-section-title {
        font-size: 1.5em;
      }
      .page-go88-grid {
        grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
      }
      .page-go88-floating-btn {
        font-size: 0.9em;
        padding: 12px 20px;
      }
      .page-go88-hero-banner {
        padding-top: 120px; /* Nhỏ hơn một chút trên di động */
      }
    }

    @media (max-width: 480px) {
      .page-go88-section {
        padding: 25px 15px;
      }
      .page-go88-title {
        font-size: 1.5em;
      }
      .page-go88-section-title {
        font-size: 1.3em;
      }
      .page-go88-grid {
        grid-template-columns: repeat(auto-fit, minmax(100px, 1fr));
      }
      .page-go88-card-image {
        max-width: 80px;
      }
      .page-go88-card-title {
        font-size: 1em;
      }
      .page-go88-floating-btn {
        font-size: 0.8em;
        padding: 10px 15px;
      }
      .page-go88-hero-banner {
        padding-top: 100px; /* Nhỏ hơn nữa trên di động rất nhỏ */
      }
    }