/* CSS Styles for page-u888 */
    :root {
      --page-u888-primary-color: #e44d26; /* Cam đỏ */
      --page-u888-secondary-color: #FFD700; /* Vàng */
      --page-u888-text-dark: #333333;
      --page-u888-text-light: #ffffff;
      --page-u888-bg-light: #f8f8f8;
      --page-u888-bg-dark: #2c3e50; /* Xám xanh đậm */
      --page-u888-accent-blue: #3498db;
      --page-u888-border-radius: 8px;
      --page-u888-padding-small: 10px;
      --page-u888-padding-medium: 20px;
      --page-u888-padding-large: 30px;
    }

    .page-u888 {
      font-family: 'Arial', sans-serif;
      color: var(--page-u888-text-dark);
      background-color: var(--page-u888-bg-light);
      line-height: 1.6;
      overflow-x: hidden;
    }

    .page-u888__container {
      max-width: 1200px;
      margin: 0 auto;
      padding: var(--page-u888-padding-medium);
    }

    /* Hero Section */
    .page-u888__hero {
      position: relative;
      background-color: var(--page-u888-bg-dark);
      text-align: center;
      padding-bottom: var(--page-u888-padding-large); /* Space for text below banner */
      overflow: hidden;
    }

    .page-u888__hero-banner {
      width: 100%;
      height: auto;
      display: block;
      margin: 0 auto;
      object-fit: cover;
      max-height: 300px; /* Limit banner height on larger screens */
    }

    .page-u888__hero-content {
      position: relative;
      z-index: 1;
      padding: var(--page-u888-padding-medium);
      color: var(--page-u888-text-light);
      text-shadow: 1px 1px 3px rgba(0,0,0,0.5);
    }

    .page-u888__hero h1 {
      font-size: 2.2em;
      margin-top: var(--page-u888-padding-small);
      margin-bottom: var(--page-u888-padding-medium);
      color: var(--page-u888-secondary-color);
    }

    .page-u888__hero p {
      font-size: 1.1em;
      margin-bottom: var(--page-u888-padding-medium);
    }

    .page-u888__btn {
      display: inline-block;
      background-color: var(--page-u888-primary-color);
      color: var(--page-u888-text-light);
      padding: var(--page-u888-padding-small) var(--page-u888-padding-medium);
      border-radius: var(--page-u888-border-radius);
      text-decoration: none;
      font-weight: bold;
      transition: background-color 0.3s ease, transform 0.2s ease;
      border: none;
      cursor: pointer;
      font-size: 1em;
    }

    .page-u888__btn:hover {
      background-color: #c93e1e; /* Example darker shade */
      transform: translateY(-2px);
    }

    /* Floating Login Button */
    .page-u888__floating-btn {
      position: fixed;
      bottom: var(--page-u888-padding-medium);
      right: var(--page-u888-padding-medium);
      z-index: 1000;
      background-color: var(--page-u888-accent-blue);
      color: var(--page-u888-text-light);
      padding: var(--page-u888-padding-small) var(--page-u888-padding-medium);
      border-radius: 50px; /* Pill shape */
      box-shadow: 0 4px 10px rgba(0,0,0,0.2);
      text-align: center;
      text-decoration: none;
      font-weight: bold;
      animation: page-u888-pulse 2s infinite;
      display: flex;
      align-items: center;
      gap: 5px;
    }

    .page-u888__floating-btn:hover {
      background-color: #2980b9; /* Darker blue */
      animation: none;
    }

    @keyframes page-u888-pulse {
      0% { transform: scale(1); }
      50% { transform: scale(1.05); }
      100% { transform: scale(1); }
    }

    /* Section Styling */
    .page-u888__section {
      padding: var(--page-u888-padding-large) var(--page-u888-padding-medium);
      text-align: center;
      background-color: var(--page-u888-bg-light);
    }

    .page-u888__section--dark {
      background-color: var(--page-u888-bg-dark);
      color: var(--page-u888-text-light);
    }

    .page-u888__section h2 {
      font-size: 1.8em;
      margin-bottom: var(--page-u888-padding-large);
      color: var(--page-u888-primary-color);
    }
    .page-u888__section--dark h2 {
        color: var(--page-u888-secondary-color);
    }

    /* Game Categories */
    .page-u888__game-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
      gap: var(--page-u888-padding-medium);
      margin-top: var(--page-u888-padding-large);
    }

    .page-u888__game-card {
      background-color: var(--page-u888-text-light);
      border-radius: var(--page-u888-border-radius);
      box-shadow: 0 2px 5px rgba(0,0,0,0.1);
      overflow: hidden;
      text-align: center;
      transition: transform 0.3s ease, box-shadow 0.3s ease;
      padding: var(--page-u888-padding-small);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
      height: 100%; /* Ensure cards are same height */
    }

    .page-u888__game-card:hover {
      transform: translateY(-5px);
      box-shadow: 0 5px 15px rgba(0,0,0,0.2);
    }

    .page-u888__game-card img {
      width: 100%;
      height: 120px;
      object-fit: cover;
      border-radius: var(--page-u888-border-radius) var(--page-u888-border-radius) 0 0;
      margin-bottom: var(--page-u888-padding-small);
    }

    .page-u888__game-card h3 {
      font-size: 1.1em;
      margin-bottom: var(--page-u888-padding-small);
      color: var(--page-u888-primary-color);
    }
    .page-u888__game-card h3 a {
        text-decoration: none;
        color: var(--page-u888-primary-color);
    }
    .page-u888__game-card h3 a:hover {
        text-decoration: underline;
    }

    /* Features Section */
    .page-u888__features-list {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
      gap: var(--page-u888-padding-large);
      text-align: left;
    }

    .page-u888__feature-item {
      background-color: var(--page-u888-text-light);
      padding: var(--page-u888-padding-medium);
      border-radius: var(--page-u888-border-radius);
      box-shadow: 0 2px 5px rgba(0,0,0,0.1);
      display: flex;
      align-items: flex-start;
      gap: var(--page-u888-padding-small);
    }
    .page-u888__feature-item.page-u888__feature-item--dark {
        background-color: #3f556b; /* Slightly lighter than dark bg */
        color: var(--page-u888-text-light);
    }
    .page-u888__feature-item.page-u888__feature-item--dark h3 {
        color: var(--page-u888-secondary-color);
    }


    .page-u888__feature-icon {
      font-size: 2em;
      color: var(--page-u888-primary-color);
      flex-shrink: 0;
    }
    .page-u888__feature-item--dark .page-u888__feature-icon {
        color: var(--page-u888-secondary-color);
    }

    .page-u888__feature-item h3 {
      margin-top: 0;
      color: var(--page-u888-primary-color);
    }

    /* How to Register Section */
    .page-u888__steps {
      display: flex;
      flex-direction: column;
      gap: var(--page-u888-padding-medium);
      margin-top: var(--page-u888-padding-large);
    }

    .page-u888__step-item {
      display: flex;
      align-items: center;
      gap: var(--page-u888-padding-small);
      text-align: left;
      background-color: var(--page-u888-bg-light);
      padding: var(--page-u888-padding-small);
      border-radius: var(--page-u888-border-radius);
      box-shadow: 0 2px 5px rgba(0,0,0,0.1);
    }
    .page-u888__section--dark .page-u888__step-item {
        background-color: #3f556b; /* Slightly lighter than dark bg */
        color: var(--page-u888-text-light);
    }
    .page-u888__section--dark .page-u888__step-item h3 {
        color: var(--page-u888-secondary-color);
    }


    .page-u888__step-number {
      font-size: 1.5em;
      font-weight: bold;
      color: var(--page-u888-primary-color);
      width: 40px;
      height: 40px;
      border-radius: 50%;
      background-color: var(--page-u888-secondary-color);
      display: flex;
      justify-content: center;
      align-items: center;
      flex-shrink: 0;
    }
    .page-u888__section--dark .page-u888__step-number {
        color: var(--page-u888-bg-dark); /* Dark text on light accent */
        background-color: var(--page-u888-secondary-color);
    }

    .page-u888__step-content h3 {
      margin: 0;
      color: var(--page-u888-primary-color);
    }
    .page-u888__section--dark .page-u888__step-content h3 {
        color: var(--page-u888-secondary-color);
    }

    /* Responsive adjustments */
    @media (max-width: 768px) {
      .page-u888__hero h1 {
        font-size: 1.8em;
      }
      .page-u888__hero p {
        font-size: 1em;
      }
      .page-u888__section h2 {
        font-size: 1.5em;
      }
      .page-u888__game-grid {
        grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
      }
      .page-u888__floating-btn {
        bottom: var(--page-u888-padding-small);
        right: var(--page-u888-padding-small);
        padding: 8px 15px;
        font-size: 0.9em;
      }
      .page-u888__feature-item {
        flex-direction: column;
        align-items: center;
        text-align: center;
      }
      .page-u888__step-item {
        flex-direction: column;
        align-items: center;
        text-align: center;
      }
      .page-u888__step-content {
        padding-top: var(--page-u888-padding-small);
      }
    }

    @media (max-width: 480px) {
      .page-u888__hero h1 {
        font-size: 1.5em;
      }
      .page-u888__hero p {
        font-size: 0.9em;
      }
      .page-u888__section {
        padding: var(--page-u888-padding-medium) var(--page-u888-padding-small);
      }
      .page-u888__game-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .page-u888__floating-btn {
        width: auto;
        left: 50%;
        transform: translateX(-50%);
        right: auto;
        bottom: 10px;
        font-size: 0.85em;
      }
      .page-u888__feature-item, .page-u888__step-item {
        padding: var(--page-u888-padding-small);
      }
    }