:root {
      --page-win68-primary-color: #f7b32b; /* Vàng cam */
      --page-win68-secondary-color: #e04e39; /* Đỏ cam */
      --page-win68-dark-bg: #1a1a2e; /* Xanh đen */
      --page-win68-light-text: #ffffff; /* Trắng */
      --page-win68-gray-text: #cccccc; /* Xám nhạt */
      --page-win68-button-hover: #ffc107; /* Vàng đậm */
      --page-win68-border-color: #3f3f5a; /* Xám xanh */
    }

    .page-win68 {
      font-family: 'Arial', sans-serif;
      background-color: var(--page-win68-dark-bg);
      color: var(--page-win68-light-text);
      line-height: 1.6;
      overflow-x: hidden;
      padding-bottom: 80px; /* Khoảng trống cho nút nổi */
    }

    .page-win68-section {
      padding: 20px 15px;
      margin-bottom: 20px;
      background-color: var(--page-win66-dark-bg);
      border-radius: 8px;
    }

    .page-win68-section-dark {
      background-color: #2a2a4a;
      padding: 20px 15px;
      margin-bottom: 20px;
      border-radius: 8px;
    }

    .page-win68-container {
      max-width: 1200px;
      margin: 0 auto;
      padding: 0 15px;
    }

    .page-win68-header-banner {
      position: relative;
      width: 100%;
      height: 250px; /* Chiều cao banner mặc định */
      background-color: #333;
      display: flex;
      flex-direction: column;
      justify-content: center;
      align-items: center;
      text-align: center;
      overflow: hidden;
      margin-bottom: 20px;
    }

    .page-win68-header-banner img {
      position: absolute;
      top: 0;
      left: 0;
      width: 100%;
      height: 100%;
      object-fit: cover;
      z-index: 1;
    }

    .page-win68-banner-content {
      position: relative;
      z-index: 2;
      color: var(--page-win68-light-text);
      text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.7);
      padding: 10px;
      background-color: rgba(0, 0, 0, 0.4);
      border-radius: 8px;
    }

    .page-win68-banner-content h1 {
      font-size: 2.2em;
      margin-bottom: 10px;
      color: var(--page-win68-primary-color);
    }

    .page-win68-banner-content p {
      font-size: 1.1em;
      margin-bottom: 15px;
    }

    .page-win68-button {
      display: inline-block;
      background-color: var(--page-win68-primary-color);
      color: var(--page-win68-dark-bg);
      padding: 12px 25px;
      border-radius: 50px;
      text-decoration: none;
      font-weight: bold;
      font-size: 1.1em;
      transition: background-color 0.3s ease, transform 0.2s ease;
      border: none;
      cursor: pointer;
    }

    .page-win68-button:hover {
      background-color: var(--page-win68-button-hover);
      transform: translateY(-2px);
    }

    .page-win68-floating-buttons {
      position: fixed;
      bottom: 0;
      left: 0;
      width: 100%;
      display: flex;
      justify-content: space-around;
      padding: 10px 0;
      background-color: rgba(0, 0, 0, 0.9);
      box-shadow: 0 -2px 10px rgba(0, 0, 0, 0.5);
      z-index: 1000;
    }

    .page-win68-floating-buttons .page-win68-button {
      flex: 1;
      margin: 0 5px;
      text-align: center;
      padding: 10px 15px;
      font-size: 1em;
      white-space: nowrap;
      overflow: hidden;
      text-overflow: ellipsis;
    }

    .page-win68-title {
      font-size: 2em;
      color: var(--page-win68-primary-color);
      text-align: center;
      margin-bottom: 25px;
      padding-bottom: 10px;
      position: relative;
    }

    .page-win68-title::after {
      content: '';
      position: absolute;
      left: 50%;
      bottom: 0;
      transform: translateX(-50%);
      width: 60px;
      height: 4px;
      background-color: var(--page-win68-secondary-color);
      border-radius: 2px;
    }

    .page-win68-game-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
      gap: 15px;
      margin-bottom: 30px;
    }

    .page-win68-game-card {
      background-color: #2a2a4a;
      border-radius: 8px;
      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;
      border: 1px solid var(--page-win68-border-color);
    }

    .page-win68-game-card:hover {
      transform: translateY(-5px);
      box-shadow: 0 8px 15px rgba(0, 0, 0, 0.5);
    }

    .page-win68-game-card img {
      width: 100%;
      height: 120px;
      object-fit: cover;
      display: block;
    }

    .page-win68-game-card h3 {
      font-size: 1.1em;
      color: var(--page-win68-primary-color);
      margin: 10px 5px;
      padding: 0;
    }

    .page-win68-game-card h3 a {
      color: var(--page-win68-primary-color);
      text-decoration: none;
      transition: color 0.3s ease;
    }

    .page-win68-game-card h3 a:hover {
      color: var(--page-win68-button-hover);
    }

    .page-win68-text-block {
      background-color: #2a2a4a;
      padding: 20px;
      border-radius: 8px;
      margin-bottom: 20px;
      box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
    }

    .page-win68-text-block h2 {
      color: var(--page-win68-primary-color);
      font-size: 1.8em;
      margin-bottom: 15px;
    }

    .page-win68-text-block h3 {
      color: var(--page-win68-secondary-color);
      font-size: 1.4em;
      margin-top: 20px;
      margin-bottom: 10px;
    }

    .page-win68-text-block p {
      color: var(--page-win68-gray-text);
      margin-bottom: 10px;
    }

    .page-win68-text-block ul {
      list-style: disc;
      margin-left: 20px;
      color: var(--page-win68-gray-text);
    }

    .page-win68-text-block ul li {
      margin-bottom: 5px;
    }

    .page-win68-features-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
      gap: 20px;
      margin-bottom: 30px;
    }

    .page-win68-feature-item {
      background-color: #2a2a4a;
      padding: 20px;
      border-radius: 8px;
      text-align: center;
      box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
      border: 1px solid var(--page-win68-border-color);
    }

    .page-win68-feature-item img {
      width: 60px;
      height: 60px;
      margin-bottom: 15px;
    }

    .page-win68-feature-item h3 {
      color: var(--page-win68-primary-color);
      font-size: 1.3em;
      margin-bottom: 10px;
    }

    .page-win68-feature-item p {
      color: var(--page-win68-gray-text);
      font-size: 0.95em;
    }

    .page-win68-provider-list {
      display: flex;
      flex-wrap: wrap;
      justify-content: center;
      gap: 15px;
      margin-bottom: 30px;
    }

    .page-win68-provider-item {
      background-color: #3f3f5a;
      padding: 10px 15px;
      border-radius: 5px;
      color: var(--page-win68-light-text);
      font-size: 0.9em;
      white-space: nowrap;
    }

    .page-win68-cta {
      text-align: center;
      padding: 30px 15px;
      background-color: var(--page-win68-secondary-color);
      border-radius: 8px;
      margin-top: 30px;
    }

    .page-win68-cta h2 {
      color: var(--page-win68-light-text);
      font-size: 2.2em;
      margin-bottom: 15px;
    }

    .page-win68-cta p {
      color: var(--page-win68-light-text);
      font-size: 1.1em;
      margin-bottom: 25px;
    }

    /* Responsive adjustments */
    @media (min-width: 768px) {
      .page-win68-header-banner {
        height: 350px;
      }

      .page-win68-banner-content h1 {
        font-size: 3em;
      }

      .page-win68-banner-content p {
        font-size: 1.3em;
      }

      .page-win68-title {
        font-size: 2.5em;
      }

      .page-win68-game-grid {
        grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
      }

      .page-win68-game-card img {
        height: 150px;
      }

      .page-win68-floating-buttons {
        width: auto;
        left: 50%;
        transform: translateX(-50%);
        bottom: 20px;
        max-width: 400px;
        border-radius: 50px;
        padding: 10px 20px;
      }

      .page-win68-floating-buttons .page-win68-button {
        font-size: 1.1em;
        padding: 12px 25px;
        margin: 0 10px;
      }
    }

    @media (min-width: 1024px) {
      .page-win68-header-banner {
        height: 450px;
      }

      .page-win68-game-grid {
        grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
      }

      .page-win68-game-card img {
        height: 180px;
      }
    }