/* Tổng quan */
    :root {
      --page-b52game-primary-color: #0A192F; /* Rất đậm */
      --page-b52game-secondary-color: #1F3A68; /* Hơi nhạt hơn */
      --page-b52game-accent-color: #FFD700; /* Vàng kim */
      --page-b52game-text-color: #F0F8FF; /* Trắng xanh */
      --page-b52game-light-text-color: #B0C4DE; /* Xanh xám nhạt */
      --page-b52game-border-color: #36454F; /* Xám than */
      --page-b52game-button-hover-color: #FFEC8B;
    }

    .page-b52game {
      font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
      background-color: var(--page-b52game-primary-color);
      color: var(--page-b52game-text-color);
      line-height: 1.6;
      padding-bottom: 80px; /* Để chừa chỗ cho nút nổi */
    }

    .page-b52game-container {
      max-width: 1200px;
      margin: 0 auto;
      padding: 1rem;
    }

    .page-b52game h1, .page-b52game h2, .page-b52game h3 {
      color: var(--page-b52game-accent-color);
      text-align: center;
      margin-bottom: 1.5rem;
      font-weight: 700;
    }

    .page-b52game h1 {
      font-size: 2.5rem;
      margin-top: 1.5rem;
    }

    .page-b52game h2 {
      font-size: 2rem;
      border-bottom: 2px solid var(--page-b52game-border-color);
      padding-bottom: 0.5rem;
      margin-top: 2rem;
    }

    .page-b52game h3 {
      font-size: 1.5rem;
      margin-top: 1.5rem;
    }

    .page-b52game p {
      margin-bottom: 1rem;
      text-align: justify;
    }

    .page-b52game a {
      color: var(--page-b52game-accent-color);
      text-decoration: none;
    }

    .page-b52game a:hover {
      text-decoration: underline;
    }

    .page-b52game-section {
      padding: 2rem 0;
      margin-bottom: 1rem;
      background-color: var(--page-b52game-secondary-color);
      border-radius: 8px;
      box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
    }
    
    /* Banner */
    .page-b52game-banner {
      position: relative;
      overflow: hidden;
      margin-bottom: 2rem;
      background-color: var(--page-b52game-primary-color);
      padding: 1rem 0;
    }

    .page-b52game-banner img {
      width: 100%;
      height: auto;
      display: block;
      margin: 0 auto;
      border-radius: 8px;
      max-width: 800px; /* Giới hạn chiều rộng banner */
    }

    .page-b52game-banner-content {
      text-align: center;
      padding: 1rem;
    }

    .page-b52game-banner-content h1 {
      color: var(--page-b52game-accent-color);
      font-size: 2.2rem;
      margin-bottom: 0.5rem;
      text-shadow: 2px 2px 4px rgba(0,0,0,0.5);
    }

    .page-b52game-banner-content p {
      font-size: 1.1rem;
      color: var(--page-b52game-light-text-color);
      max-width: 700px;
      margin: 0.5rem auto 1.5rem auto;
    }

    /* Nút Đăng Nhập Nổi */
    .page-b52game-floating-button {
      position: fixed;
      bottom: 20px;
      left: 50%;
      transform: translateX(-50%);
      background-color: var(--page-b52game-accent-color);
      color: var(--page-b52game-primary-color);
      padding: 15px 30px;
      border-radius: 50px;
      text-align: center;
      font-size: 1.2rem;
      font-weight: bold;
      box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
      z-index: 1000;
      transition: background-color 0.3s ease, transform 0.3s ease;
      white-space: nowrap; /* Đảm bảo nút không bị ngắt dòng */
      display: block; /* Đảm bảo nút chiếm toàn bộ chiều rộng có sẵn trên mobile */
      width: fit-content; /* Giới hạn chiều rộng theo nội dung */
      min-width: 280px; /* Chiều rộng tối thiểu cho nút */
    }

    .page-b52game-floating-button:hover {
      background-color: var(--page-b52game-button-hover-color);
      transform: translateX(-50%) scale(1.05);
      color: var(--page-b52game-primary-color); /* Đảm bảo màu chữ vẫn tương phản */
    }

    /* Lưới sản phẩm/game */
    .page-b52game-game-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
      gap: 1rem;
      margin-top: 1.5rem;
    }

    .page-b52game-game-card {
      background-color: var(--page-b52game-primary-color);
      border-radius: 8px;
      overflow: hidden;
      text-align: center;
      padding: 1rem;
      box-shadow: 0 2px 5px rgba(0, 0, 0, 0.2);
      transition: transform 0.2s ease;
    }

    .page-b52game-game-card:hover {
      transform: translateY(-5px);
    }

    .page-b52game-game-card img {
      width: 80px;
      height: 80px;
      object-fit: contain;
      margin-bottom: 0.5rem;
      border-radius: 4px;
    }

    .page-b52game-game-card h3 {
      font-size: 1.1rem;
      margin: 0;
      color: var(--page-b52game-accent-color);
    }

    /* Hướng dẫn */
    .page-b52game-step-list {
      list-style: none;
      padding: 0;
      margin-top: 1.5rem;
    }

    .page-b52game-step-list li {
      background-color: var(--page-b52game-primary-color);
      margin-bottom: 1rem;
      padding: 1rem 1.5rem;
      border-left: 5px solid var(--page-b52game-accent-color);
      border-radius: 4px;
      box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
    }

    .page-b52game-step-list li strong {
      color: var(--page-b52game-accent-color);
      font-size: 1.1rem;
      display: block;
      margin-bottom: 0.5rem;
    }

    /* Tải ứng dụng */
    .page-b52game-download-apps {
      display: flex;
      flex-direction: column;
      align-items: center;
      gap: 1.5rem;
      margin-top: 2rem;
    }

    .page-b52game-download-item {
      text-align: center;
      background-color: var(--page-b52game-primary-color);
      padding: 1.5rem;
      border-radius: 8px;
      box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
      width: 100%;
      max-width: 300px;
    }

    .page-b52game-download-item img {
      width: 150px;
      height: 150px;
      object-fit: contain;
      margin-bottom: 1rem;
      border: 2px solid var(--page-b52game-border-color);
      border-radius: 4px;
    }

    .page-b52game-download-item p {
      margin: 0.5rem 0;
      font-size: 1.1rem;
      color: var(--page-b52game-light-text-color);
    }

    .page-b52game-download-item a {
      display: inline-block;
      background-color: var(--page-b52game-accent-color);
      color: var(--page-b52game-primary-color);
      padding: 10px 20px;
      border-radius: 5px;
      font-weight: bold;
      margin-top: 1rem;
      transition: background-color 0.3s ease;
    }

    .page-b52game-download-item a:hover {
      background-color: var(--page-b52game-button-hover-color);
      text-decoration: none;
    }

    /* Khuyến mãi */
    .page-b52game-promotions-list {
      list-style: none;
      padding: 0;
      margin-top: 1.5rem;
    }

    .page-b52game-promotions-list li {
      background-color: var(--page-b52game-primary-color);
      margin-bottom: 1rem;
      padding: 1rem 1.5rem;
      border-left: 5px solid var(--page-b52game-accent-color);
      border-radius: 4px;
      box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
    }

    .page-b52game-promotions-list li strong {
      color: var(--page-b52game-accent-color);
      font-size: 1.1rem;
      display: block;
      margin-bottom: 0.5rem;
    }

    /* FAQ */
    .page-b52game-faq-item {
      background-color: var(--page-b52game-primary-color);
      margin-bottom: 1rem;
      border-radius: 8px;
      box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
      overflow: hidden;
    }

    .page-b52game-faq-question {
      padding: 1rem 1.5rem;
      background-color: var(--page-b52game-secondary-color);
      cursor: pointer;
      display: flex;
      justify-content: space-between;
      align-items: center;
      font-weight: bold;
      color: var(--page-b52game-accent-color);
      transition: background-color 0.3s ease;
    }

    .page-b52game-faq-question:hover {
      background-color: #2a4c80; /* Slightly lighter secondary */
    }

    .page-b52game-faq-question .icon {
      font-size: 1.2rem;
      transition: transform 0.3s ease;
    }

    .page-b52game-faq-answer {
      padding: 1rem 1.5rem;
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.5s ease-out;
      background-color: var(--page-b52game-primary-color);
      color: var(--page-b52game-light-text-color);
    }

    .page-b52game-faq-item.active .page-b52game-faq-answer {
      max-height: 200px; /* Adjust as needed */
    }

    .page-b52game-faq-item.active .page-b52game-faq-question .icon {
      transform: rotate(180deg);
    }

    /* Responsive */
    @media (max-width: 768px) {
      .page-b52game h1 {
        font-size: 1.8rem;
      }

      .page-b52game h2 {
        font-size: 1.6rem;
      }

      .page-b52game-game-grid {
        grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
      }

      .page-b52game-game-card img {
        width: 60px;
        height: 60px;
      }

      .page-b52game-game-card h3 {
        font-size: 1rem;
      }

      .page-b52game-download-apps {
        flex-direction: column;
      }
      .page-b52game-floating-button {
          min-width: unset;
          width: 90%;
          padding: 12px 20px;
          font-size: 1rem;
      }
    }

    @media (max-width: 480px) {
      .page-b52game-container {
        padding: 0.5rem;
      }
      .page-b52game-banner-content h1 {
        font-size: 1.6rem;
      }
      .page-b52game-banner-content p {
        font-size: 0.9rem;
      }
      .page-b52game-floating-button {
        font-size: 0.9rem;
        padding: 10px 15px;
        bottom: 15px;
      }
      .page-b52game h1 {
        font-size: 1.5rem;
      }
      .page-b52game h2 {
        font-size: 1.3rem;
      }
      .page-b52game-game-grid {
        grid-template-columns: repeat(auto-fit, minmax(100px, 1fr));
      }
    }