/* CSS cho trang keo 88 */
    :root {
      --page-keo88-primary-bg: #1a1a2e; /* Màu nền tối */
      --page-keo88-secondary-bg: #16213e; /* Màu nền phụ */
      --page-keo88-accent-color: #e94560; /* Màu nhấn chính */
      --page-keo88-text-color: #ffffff; /* Màu chữ sáng */
      --page-keo88-light-text: #e0e0e0; /* Màu chữ nhạt hơn */
      --page-keo88-border-color: #0f3460; /* Màu viền */
      --page-keo88-button-hover: #b82c44; /* Màu nút khi hover */
    }

    .page-keo88 {
      font-family: 'Arial', sans-serif;
      background-color: var(--page-keo88-primary-bg);
      color: var(--page-keo88-text-color);
      line-height: 1.6;
      padding-bottom: 80px; /* Đảm bảo không bị nút nổi che */
    }

    .page-keo88-section {
      padding: 30px 15px;
      margin: 0 auto;
      max-width: 1200px;
    }

    .page-keo88-section-dark {
      background-color: var(--page-keo88-secondary-bg);
    }

    .page-keo88-section-title {
      font-size: 2.2em;
      color: var(--page-keo88-accent-color);
      text-align: center;
      margin-bottom: 30px;
      font-weight: bold;
    }

    .page-keo88-section-title strong {
      color: var(--page-keo88-text-color);
    }

    .page-keo88-hero {
      text-align: center;
      padding-top: 160px; /* Vùng an toàn cho banner */
      position: relative;
      overflow: hidden;
      margin-bottom: 30px;
    }

    .page-keo88-hero-image {
      width: 100%;
      max-width: 800px;
      height: auto;
      display: block;
      margin: 0 auto 20px auto;
      border-radius: 10px;
      box-shadow: 0 5px 15px rgba(0, 0, 0, 0.5);
    }

    .page-keo88-hero h1 {
      font-size: 2.8em;
      color: var(--page-keo88-text-color);
      margin-bottom: 15px;
      font-weight: bold;
      line-height: 1.2;
    }

    .page-keo88-hero h1 strong {
      color: var(--page-keo88-accent-color);
    }

    .page-keo88-hero p {
      font-size: 1.1em;
      color: var(--page-keo88-light-text);
      max-width: 800px;
      margin: 0 auto 30px auto;
    }

    .page-keo88-button-floating {
      position: fixed;
      bottom: 20px;
      right: 20px;
      background-color: var(--page-keo88-accent-color);
      color: var(--page-keo88-text-color);
      padding: 15px 25px;
      border-radius: 50px;
      text-decoration: none;
      font-weight: bold;
      font-size: 1.2em;
      box-shadow: 0 4px 15px rgba(0, 0, 0, 0.4);
      z-index: 1000;
      transition: background-color 0.3s ease;
      animation: page-keo88-pulse 2s infinite;
      display: flex;
      align-items: center;
      gap: 8px;
    }

    .page-keo88-button-floating:hover {
      background-color: var(--page-keo88-button-hover);
    }

    @keyframes page-keo88-pulse {
      0% { transform: scale(1); }
      50% { transform: scale(1.05); }
      100% { transform: scale(1); }
    }

    .page-keo88-game-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
      gap: 25px;
      margin-top: 30px;
    }

    .page-keo88-game-card {
      background-color: var(--page-keo88-primary-bg);
      border: 1px solid var(--page-keo88-border-color);
      border-radius: 10px;
      overflow: hidden;
      text-align: center;
      box-shadow: 0 4px 10px rgba(0, 0, 0, 0.3);
      transition: transform 0.3s ease, box-shadow 0.3s ease;
    }

    .page-keo88-game-card:hover {
      transform: translateY(-5px);
      box-shadow: 0 8px 20px rgba(0, 0, 0, 0.5);
    }

    .page-keo88-game-card img {
      width: 100%;
      height: 200px;
      object-fit: cover;
      display: block;
      border-bottom: 1px solid var(--page-keo88-border-color);
    }

    .page-keo88-game-card-content {
      padding: 20px;
    }

    .page-keo88-game-card h3 {
      font-size: 1.4em;
      margin-bottom: 10px;
      color: var(--page-keo88-accent-color);
    }

    .page-keo88-game-card h3 a {
      color: var(--page-keo88-accent-color);
      text-decoration: none;
      transition: color 0.3s ease;
    }

    .page-keo88-game-card h3 a:hover {
      color: var(--page-keo88-light-text);
    }

    .page-keo88-game-card p {
      font-size: 0.95em;
      color: var(--page-keo88-light-text);
      margin-bottom: 15px;
    }

    .page-keo88-promo-list {
      list-style: none;
      padding: 0;
      margin-top: 20px;
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
      gap: 20px;
    }

    .page-keo88-promo-list li {
      background-color: var(--page-keo88-primary-bg);
      border: 1px solid var(--page-keo88-border-color);
      border-radius: 8px;
      padding: 20px;
      box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
      transition: transform 0.3s ease;
    }

    .page-keo88-promo-list li:hover {
      transform: translateY(-3px);
    }

    .page-keo88-promo-list li strong {
      color: var(--page-keo88-accent-color);
      font-size: 1.1em;
      display: block;
      margin-bottom: 8px;
    }

    .page-keo88-provider-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(100px, 1fr));
      gap: 20px;
      margin-top: 30px;
    }

    .page-keo88-provider-grid img {
      width: 100%;
      height: 60px;
      object-fit: contain;
      background-color: #222;
      padding: 10px;
      border-radius: 8px;
      box-shadow: 0 2px 5px rgba(0, 0, 0, 0.2);
      transition: transform 0.3s ease;
    }

    .page-keo88-provider-grid img:hover {
      transform: scale(1.05);
    }

    .page-keo88-guide-steps {
      list-style: none;
      padding: 0;
      margin-top: 20px;
    }

    .page-keo88-guide-steps li {
      background-color: var(--page-keo88-primary-bg);
      border: 1px solid var(--page-keo88-border-color);
      border-radius: 8px;
      padding: 15px 20px;
      margin-bottom: 15px;
      box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
      display: flex;
      align-items: center;
      gap: 15px;
    }

    .page-keo88-guide-steps li strong {
      color: var(--page-keo88-accent-color);
      font-size: 1.2em;
      flex-shrink: 0;
    }

    .page-keo88-faq-item {
      background-color: var(--page-keo88-primary-bg);
      border: 1px solid var(--page-keo88-border-color);
      border-radius: 8px;
      margin-bottom: 15px;
      box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
    }

    .page-keo88-faq-question {
      padding: 15px 20px;
      font-weight: bold;
      color: var(--page-keo88-accent-color);
      cursor: pointer;
      display: flex;
      justify-content: space-between;
      align-items: center;
    }

    .page-keo88-faq-answer {
      padding: 0 20px 15px 20px;
      color: var(--page-keo88-light-text);
      display: none;
    }

    .page-keo88-faq-question::after {
      content: '+';
      font-size: 1.5em;
      transition: transform 0.3s ease;
    }

    .page-keo88-faq-question.active::after {
      content: '-';
      transform: rotate(180deg);
    }

    .page-keo88-text-center {
      text-align: center;
    }

    .page-keo88-cta-button {
      display: inline-block;
      background-color: var(--page-keo88-accent-color);
      color: var(--page-keo88-text-color);
      padding: 12px 25px;
      border-radius: 5px;
      text-decoration: none;
      font-weight: bold;
      margin-top: 20px;
      transition: background-color 0.3s ease;
    }

    .page-keo88-cta-button:hover {
      background-color: var(--page-keo88-button-hover);
    }

    /* Responsive adjustments */
    @media (max-width: 768px) {
      .page-keo88-hero {
        padding-top: 140px; /* Vùng an toàn nhỏ hơn cho di động */
      }
      .page-keo88-hero h1 {
        font-size: 2em;
      }
      .page-keo88-section-title {
        font-size: 1.8em;
      }
      .page-keo88-button-floating {
        padding: 12px 20px;
        font-size: 1em;
        bottom: 15px;
        right: 15px;
      }
      .page-keo88-game-grid {
        grid-template-columns: 1fr;
      }
      .page-keo88-promo-list {
        grid-template-columns: 1fr;
      }
      .page-keo88-provider-grid {
        grid-template-columns: repeat(auto-fit, minmax(80px, 1fr));
      }
    }

    @media (max-width: 480px) {
      .page-keo88-hero h1 {
        font-size: 1.6em;
      }
      .page-keo88-hero p {
        font-size: 1em;
      }
      .page-keo88-section {
        padding: 20px 10px;
      }
      .page-keo88-section-title {
        font-size: 1.5em;
      }
      .page-keo88-button-floating {
        padding: 10px 18px;
        font-size: 0.9em;
        bottom: 10px;
        right: 10px;
      }
      .page-keo88-guide-steps li {
        flex-direction: column;
        align-items: flex-start;
      }
    }