
    /* CSS cho trang vf555 casino */
    :root {
      --page-vf555casino-primary-color: #007bff; /* Xanh dương */
      --page-vf555casino-secondary-color: #28a745; /* Xanh lá cây */
      --page-vf555casino-accent-color: #ffc107; /* Vàng */
      --page-vf555casino-text-color: #333333; /* Đen xám */
      --page-vf555casino-light-text-color: #6c757d; /* Xám nhạt */
      --page-vf555casino-background-color: #f8f9fa; /* Xám trắng */
      --page-vf555casino-card-background: #ffffff; /* Trắng */
      --page-vf555casino-border-color: #e9ecef; /* Xám viền */
    }

    .page-vf555casino {
      font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif;
      line-height: 1.6;
      color: var(--page-vf555casino-text-color);
      background-color: var(--page-vf555casino-background-color);
      padding: 20px 0;
    }

    .page-vf555casino-container {
      max-width: 1200px;
      margin: 0 auto;
      padding: 0 15px;
    }

    .page-vf555casino-section {
      background-color: var(--page-vf555casino-card-background);
      border-radius: 8px;
      box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
      margin-bottom: 30px;
      padding: 30px;
    }

    .page-vf555casino-section h1,
    .page-vf555casino-section h2,
    .page-vf555casino-section h3 {
      color: var(--page-vf555casino-primary-color);
      margin-top: 0;
      margin-bottom: 20px;
    }

    .page-vf555casino-section h1 {
      font-size: 2.5em;
      text-align: center;
      color: #0056b3; /* Xanh đậm cho H1 */
    }

    .page-vf555casino-section h2 {
      font-size: 2em;
      border-bottom: 2px solid var(--page-vf555casino-border-color);
      padding-bottom: 10px;
      margin-bottom: 25px;
    }

    .page-vf555casino-section h3 {
      font-size: 1.5em;
      color: var(--page-vf555casino-secondary-color);
      margin-bottom: 15px;
    }

    .page-vf555casino-button {
      display: inline-block;
      background-color: var(--page-vf555casino-secondary-color);
      color: #ffffff;
      padding: 12px 25px;
      border-radius: 5px;
      text-decoration: none;
      font-weight: bold;
      transition: background-color 0.3s ease;
      margin-top: 15px;
      border: none;
      cursor: pointer;
    }

    .page-vf555casino-button:hover {
      background-color: #218838; /* Xanh lá đậm hơn */
      color: #ffffff;
    }

    .page-vf555casino-link {
      color: var(--page-vf555casino-primary-color);
      text-decoration: none;
      font-weight: 500;
    }

    .page-vf555casino-link:hover {
      text-decoration: underline;
      color: #0056b3; /* Xanh đậm hơn */
    }

    .page-vf555casino-image {
      max-width: 100%;
      height: auto;
      border-radius: 8px;
      margin-bottom: 20px;
      display: block;
      margin-left: auto;
      margin-right: auto;
    }

    .page-vf555casino-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
      gap: 25px;
      margin-top: 20px;
    }

    .page-vf555casino-card {
      background-color: var(--page-vf555casino-card-background);
      border: 1px solid var(--page-vf555casino-border-color);
      border-radius: 8px;
      padding: 20px;
      text-align: center;
      box-shadow: 0 2px 5px rgba(0, 0, 0, 0.03);
      transition: transform 0.2s ease, box-shadow 0.2s ease;
    }

    .page-vf555casino-card:hover {
      transform: translateY(-5px);
      box-shadow: 0 4px 15px rgba(0, 0, 0, 0.08);
    }

    .page-vf555casino-card-icon {
      font-size: 3em;
      color: var(--page-vf555casino-primary-color);
      margin-bottom: 15px;
    }
    
    .page-vf555casino-list {
        list-style: disc;
        padding-left: 20px;
        margin-bottom: 20px;
    }

    .page-vf555casino-list li {
        margin-bottom: 10px;
    }

    .page-vf555casino-alert {
        background-color: #fff3cd; /* Vàng nhạt */
        color: #856404; /* Vàng đậm */
        border: 1px solid #ffeeba;
        border-radius: 5px;
        padding: 15px;
        margin-bottom: 20px;
        display: flex;
        align-items: center;
        gap: 10px;
    }

    .page-vf555casino-alert-icon {
        font-size: 1.5em;
    }

    .page-vf555casino-floating-ad {
      position: fixed;
      bottom: 20px;
      right: 20px;
      background-color: var(--page-vf555casino-accent-color);
      color: var(--page-vf555casino-text-color);
      padding: 15px 20px;
      border-radius: 10px;
      box-shadow: 0 4px 15px rgba(0, 0, 0, 0.15);
      z-index: 1000;
      text-align: center;
      max-width: 250px;
      animation: page-vf555casino-pulse 2s infinite;
      display: none; /* Ẩn theo mặc định, hiển thị bằng JS */
    }

    .page-vf555casino-floating-ad h3 {
      color: var(--page-vf555casino-text-color);
      margin-top: 0;
      font-size: 1.2em;
      margin-bottom: 10px;
    }

    .page-vf555casino-floating-ad .page-vf555casino-button {
      background-color: var(--page-vf555casino-primary-color);
      padding: 8px 15px;
      font-size: 0.9em;
      margin-top: 10px;
    }

    .page-vf555casino-floating-ad .page-vf555casino-button:hover {
      background-color: #0056b3;
    }

    @keyframes page-vf555casino-pulse {
      0% { transform: scale(1); }
      50% { transform: scale(1.03); }
      100% { transform: scale(1); }
    }

    /* Điều chỉnh cho thiết bị di động */
    @media (max-width: 768px) {
      .page-vf555casino-section {
        padding: 20px;
      }

      .page-vf555casino-section h1 {
        font-size: 2em;
      }

      .page-vf555casino-section h2 {
        font-size: 1.7em;
      }

      .page-vf555casino-section h3 {
        font-size: 1.3em;
      }

      .page-vf555casino-grid {
        grid-template-columns: 1fr;
      }

      .page-vf555casino-floating-ad {
        width: calc(100% - 40px);
        left: 20px;
        right: 20px;
        max-width: unset;
      }
    }
  