/* CSS cho trang ku88 */
    :root {
      --page-ku88-primary-color: #ffcc00; /* Vàng rực rỡ */
      --page-ku88-secondary-color: #333333; /* Xám đậm */
      --page-ku88-accent-color: #e44d26; /* Cam đỏ */
      --page-ku88-text-light: #ffffff;
      --page-ku88-text-dark: #333333;
      --page-ku88-bg-light: #f5f5f5;
      --page-ku88-bg-dark: #222222;
    }

    .page-ku88 {
      font-family: 'Arial', sans-serif;
      line-height: 1.6;
      color: var(--page-ku88-text-dark);
      background-color: var(--page-ku88-bg-light);
      padding-bottom: 80px; /* Khoảng trống cho nút nổi */
    }

    .page-ku88-section {
      padding: 20px 15px;
      margin-bottom: 20px;
      background-color: var(--page-ku88-text-light);
      border-radius: 8px;
      box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
    }

    .page-ku88-banner {
      width: 100%;
      max-width: 100%;
      height: 200px; /* Điều chỉnh chiều cao banner cho di động */
      background-color: var(--page-ku88-secondary-color);
      display: flex;
      align-items: center;
      justify-content: center;
      overflow: hidden;
      margin-bottom: 20px;
      position: relative;
    }

    .page-ku88-banner img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      position: absolute;
      top: 0;
      left: 0;
      z-index: 1;
    }

    .page-ku88-banner-content {
      position: relative;
      z-index: 2;
      text-align: center;
      color: var(--page-ku88-text-light);
      padding: 15px;
      background: rgba(0, 0, 0, 0.5);
      border-radius: 8px;
      max-width: 90%;
    }

    .page-ku88-banner-content h1 {
      font-size: 1.8em;
      margin-top: 0;
      margin-bottom: 10px;
      color: var(--page-ku88-primary-color);
      text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.7);
    }

    .page-ku88-banner-content p {
      font-size: 1em;
      margin-bottom: 0;
    }

    .page-ku88-button {
      display: inline-block;
      background-color: var(--page-ku88-accent-color);
      color: var(--page-ku88-text-light);
      padding: 12px 25px;
      border-radius: 50px;
      text-decoration: none;
      font-weight: bold;
      transition: background-color 0.3s ease;
      text-align: center;
      border: none;
      cursor: pointer;
    }

    .page-ku88-button:hover {
      background-color: #c43e1d;
    }

    .page-ku88-floating-button {
      position: fixed;
      bottom: 20px;
      left: 50%;
      transform: translateX(-50%);
      z-index: 1000;
      width: calc(100% - 40px);
      max-width: 400px;
      animation: page-ku88-pulse 1.5s infinite;
    }

    @keyframes page-ku88-pulse {
      0% { transform: translateX(-50%) scale(1); }
      50% { transform: translateX(-50%) scale(1.05); }
      100% { transform: translateX(-50%) scale(1); }
    }

    .page-ku88-title {
      color: var(--page-ku88-secondary-color);
      font-size: 1.5em;
      margin-top: 0;
      margin-bottom: 15px;
      text-align: center;
    }

    .page-ku88-text-center {
      text-align: center;
    }

    .page-ku88-game-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
      gap: 15px;
      margin-top: 20px;
    }

    .page-ku88-game-card {
      background-color: var(--page-ku88-bg-light);
      border-radius: 8px;
      overflow: hidden;
      box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
      text-align: center;
      padding-bottom: 10px;
      transition: transform 0.2s ease;
    }

    .page-ku88-game-card:hover {
      transform: translateY(-5px);
    }

    .page-ku88-game-card img {
      width: 100%;
      height: 100px;
      object-fit: cover;
      border-bottom: 1px solid #eee;
    }

    .page-ku88-game-card h3 {
      font-size: 1.1em;
      margin: 10px 5px 5px;
      color: var(--page-ku88-secondary-color);
    }

    .page-ku88-game-card a {
      text-decoration: none;
      color: inherit;
    }

    .page-ku88-list {
      list-style: none;
      padding: 0;
      margin: 15px 0;
    }

    .page-ku88-list li {
      background-color: #f9f9f9;
      margin-bottom: 8px;
      padding: 10px 15px;
      border-radius: 5px;
      border-left: 4px solid var(--page-ku88-primary-color);
    }

    .page-ku88-highlight {
      color: var(--page-ku88-accent-color);
      font-weight: bold;
    }

    .page-ku88-article-list {
      margin-top: 20px;
    }

    .page-ku88-article-item {
      background-color: var(--page-ku88-bg-light);
      padding: 15px;
      margin-bottom: 15px;
      border-radius: 8px;
      box-shadow: 0 1px 3px rgba(0, 0, 0, 0.08);
    }

    .page-ku88-article-item h3 {
      font-size: 1.2em;
      margin-top: 0;
      margin-bottom: 10px;
    }

    .page-ku88-article-item h3 a {
      color: var(--page-ku88-secondary-color);
      text-decoration: none;
    }

    .page-ku88-article-item h3 a:hover {
      color: var(--page-ku88-primary-color);
    }

    .page-ku88-article-item p {
      font-size: 0.9em;
      color: #666;
    }

    /* Responsive adjustments */
    @media (min-width: 768px) {
      .page-ku88-section {
        padding: 30px 25px;
      }
      .page-ku88-banner {
        height: 300px;
      }
      .page-ku88-banner-content h1 {
        font-size: 2.5em;
      }
      .page-ku88-game-grid {
        grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
      }
      .page-ku88-game-card img {
        height: 120px;
      }
      .page-ku88-title {
        font-size: 2em;
      }
    }