:root {
      --page-mb666-primary-color: #f7b32b; /* Vàng cam */
      --page-mb666-secondary-color: #2c3e50; /* Xám đậm */
      --page-mb666-accent-color: #e74c3c; /* Đỏ */
      --page-mb666-text-color: #ecf0f1; /* Trắng xám */
      --page-mb666-dark-bg: #1a1a1a; /* Nền rất tối */
      --page-mb666-light-bg: #34495e; /* Nền xám xanh */
      --page-mb666-border-radius: 8px;
      --page-mb666-padding: 15px;
      --page-mb666-safe-zone-height: 160px; /* Safe zone for banner */
    }

    .page-mb666 {
      font-family: 'Arial', sans-serif;
      background-color: var(--page-mb666-dark-bg);
      color: var(--page-mb666-text-color);
      line-height: 1.6;
      padding-bottom: 80px; /* Space for floating button */
    }

    .page-mb666-container {
      max-width: 1200px;
      margin: 0 auto;
      padding: var(--page-mb666-padding);
    }

    /* Banner Section */
    .page-mb666-hero-section {
      background-color: var(--page-mb666-dark-bg);
      padding-top: var(--page-mb666-safe-zone-height); /* Safe zone for header/floating menu */
      text-align: center;
      position: relative;
      overflow: hidden;
      margin-bottom: var(--page-mb666-padding);
    }

    .page-mb666-hero-image-wrapper {
      max-width: 100%;
      height: auto;
      display: flex;
      justify-content: center;
      align-items: center;
      margin: 0 auto;
      overflow: hidden;
    }

    .page-mb666-hero-image {
      max-width: 100%;
      height: auto;
      display: block;
      border-radius: var(--page-mb666-border-radius);
      object-fit: contain; /* Ensure image maintains aspect ratio */
      box-shadow: 0 4px 15px rgba(0, 0, 0, 0.5);
    }

    .page-mb666-hero-content {
      padding: var(--page-mb666-padding) 0;
      text-align: center;
    }

    .page-mb666-hero-content h1 {
      color: var(--page-mb666-primary-color);
      font-size: 2.5em;
      margin-bottom: 10px;
      text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.7);
    }

    .page-mb666-hero-content p {
      font-size: 1.1em;
      color: var(--page-mb666-text-color);
      margin-bottom: 20px;
    }

    /* Floating Login Button */
    .page-mb666-floating-btn {
      position: fixed;
      bottom: 20px;
      left: 50%;
      transform: translateX(-50%);
      background: linear-gradient(90deg, var(--page-mb666-primary-color) 0%, #ff6f00 100%);
      color: var(--page-mb666-dark-bg);
      padding: 15px 30px;
      border-radius: 50px;
      text-decoration: none;
      font-weight: bold;
      font-size: 1.2em;
      box-shadow: 0 5px 20px rgba(0, 0, 0, 0.4);
      z-index: 1000;
      transition: all 0.3s ease;
      animation: page-mb666-pulse 2s infinite;
      display: flex;
      align-items: center;
      justify-content: center;
      white-space: nowrap; /* Prevent text wrapping */
    }

    .page-mb666-floating-btn:hover {
      transform: translateX(-50%) scale(1.05);
      box-shadow: 0 8px 25px rgba(0, 0, 0, 0.6);
    }

    @keyframes page-mb666-pulse {
      0% { transform: translateX(-50%) scale(1); }
      50% { transform: translateX(-50%) scale(1.03); }
      100% { transform: translateX(-50%) scale(1); }
    }

    /* Game Categories */
    .page-mb666-game-categories {
      background-color: var(--page-mb666-light-bg);
      padding: 30px var(--page-mb666-padding);
      margin-bottom: var(--page-mb666-padding);
      border-radius: var(--page-mb666-border-radius);
      box-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
    }

    .page-mb666-game-categories h2 {
      color: var(--page-mb666-primary-color);
      text-align: center;
      margin-bottom: 30px;
      font-size: 2em;
    }

    .page-mb666-category-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
      gap: 20px;
      justify-items: center;
    }

    .page-mb666-category-item {
      text-align: center;
      background-color: var(--page-mb666-secondary-color);
      padding: 15px 10px;
      border-radius: var(--page-mb666-border-radius);
      box-shadow: 0 2px 8px rgba(0, 0, 0, 0.4);
      transition: transform 0.2s ease, box-shadow 0.2s ease;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
      align-items: center;
      width: 100%;
      max-width: 180px; /* Max width for each item */
    }

    .page-mb666-category-item:hover {
      transform: translateY(-5px);
      box-shadow: 0 5px 15px rgba(0, 0, 0, 0.6);
    }

    .page-mb666-category-item img {
      width: 80px;
      height: 80px;
      object-fit: contain;
      margin-bottom: 10px;
      border-radius: 5px;
      background-color: rgba(255, 255, 255, 0.1);
      padding: 5px;
    }

    .page-mb666-category-item a {
      color: var(--page-mb666-primary-color);
      font-weight: bold;
      text-decoration: none;
      font-size: 1.1em;
      display: block;
      width: 100%;
    }

    /* Game Providers */
    .page-mb666-providers-section {
      background-color: var(--page-mb666-dark-bg);
      padding: 30px var(--page-mb666-padding);
      margin-bottom: var(--page-mb666-padding);
      border-radius: var(--page-mb666-border-radius);
      box-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
    }

    .page-mb666-providers-section h2 {
      color: var(--page-mb666-primary-color);
      text-align: center;
      margin-bottom: 30px;
      font-size: 2em;
    }

    .page-mb666-provider-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(100px, 1fr));
      gap: 15px;
      justify-items: center;
      align-items: center;
    }

    .page-mb666-provider-logo {
      width: 100px;
      height: 60px;
      object-fit: contain;
      background-color: var(--page-mb666-secondary-color);
      padding: 8px;
      border-radius: 5px;
      box-shadow: 0 2px 5px rgba(0, 0, 0, 0.3);
      transition: transform 0.2s ease;
    }

    .page-mb666-provider-logo:hover {
      transform: scale(1.05);
    }

    /* About Section */
    .page-mb666-about-section {
      background-color: var(--page-mb666-light-bg);
      padding: 30px var(--page-mb666-padding);
      border-radius: var(--page-mb666-border-radius);
      box-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
      margin-bottom: var(--page-mb666-padding);
    }

    .page-mb666-about-section h2 {
      color: var(--page-mb666-primary-color);
      text-align: center;
      margin-bottom: 20px;
      font-size: 2em;
    }

    .page-mb666-about-section p {
      color: var(--page-mb666-text-color);
      margin-bottom: 15px;
      text-align: justify;
    }

    .page-mb666-about-section ul {
      list-style: disc inside;
      margin-left: 20px;
      color: var(--page-mb666-text-color);
      margin-bottom: 15px;
    }

    .page-mb666-about-section ul li {
      margin-bottom: 5px;
    }

    /* Responsive adjustments */
    @media (max-width: 768px) {
      .page-mb666-hero-content h1 {
        font-size: 2em;
      }
      .page-mb666-hero-content p {
        font-size: 1em;
      }
      .page-mb666-floating-btn {
        width: calc(100% - 40px);
        font-size: 1.1em;
        padding: 12px 20px;
      }
      .page-mb666-category-grid {
        grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
      }
      .page-mb666-category-item img {
        width: 60px;
        height: 60px;
      }
      .page-mb666-category-item a {
        font-size: 0.95em;
      }
      .page-mb666-provider-grid {
        grid-template-columns: repeat(auto-fit, minmax(80px, 1fr));
      }
      .page-mb666-provider-logo {
        width: 80px;
        height: 50px;
      }
    }

    @media (max-width: 480px) {
      .page-mb666-hero-content h1 {
        font-size: 1.8em;
      }
      .page-mb666-floating-btn {
        font-size: 1em;
        padding: 10px 15px;
      }
      .page-mb666-category-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .page-mb666-provider-grid {
        grid-template-columns: repeat(3, 1fr);
      }
    }