/* Tổng quan và biến CSS */
    :root {
      --page-lucky88-primary-color: #FFD700; /* Vàng kim */
      --page-lucky88-secondary-color: #4CAF50; /* Xanh lá */
      --page-lucky88-dark-bg: #1a1a2e; /* Nền tối đậm */
      --page-lucky88-light-bg: #21213e; /* Nền tối nhạt hơn */
      --page-lucky88-text-light: #f0f0f0; /* Chữ sáng */
      --page-lucky88-text-dark: #333333; /* Chữ tối (ít dùng) */
      --page-lucky88-border-color: #3f3f5f;
      --page-lucky88-spacing-md: 1.5rem;
      --page-lucky88-spacing-lg: 2.5rem;
      --page-lucky88-font-family: 'Roboto', sans-serif;
    }

    .page-lucky88 {
      font-family: var(--page-lucky88-font-family);
      color: var(--page-lucky88-text-light);
      background-color: var(--page-lucky88-dark-bg);
      line-height: 1.6;
      padding-bottom: 80px; /* Khoảng trống cho nút nổi */
    }

    .page-lucky88 a {
      color: var(--page-lucky88-primary-color);
      text-decoration: none;
    }

    .page-lucky88 a:hover {
      text-decoration: underline;
      color: var(--page-lucky88-secondary-color);
    }

    .page-lucky88 .container {
      max-width: 1200px;
      margin: 0 auto;
      padding: 0 1rem;
    }

    .page-lucky88 section {
      padding: var(--page-lucky88-spacing-lg) 0;
      text-align: center;
    }

    .page-lucky88 h1, .page-lucky88 h2, .page-lucky88 h3 {
      color: var(--page-lucky88-primary-color);
      margin-bottom: var(--page-lucky88-spacing-md);
      font-weight: 700;
    }

    .page-lucky88 h1 {
      font-size: 2.5rem;
      line-height: 1.2;
    }
    .page-lucky88 h2 {
      font-size: 2rem;
      line-height: 1.3;
    }
    .page-lucky88 h3 {
      font-size: 1.5rem;
      line-height: 1.4;
    }

    /* Hero Section */
    .page-lucky88 .hero-section {
      position: relative;
      overflow: hidden;
      background-color: var(--page-lucky88-dark-bg);
      padding: var(--page-lucky88-spacing-lg) 0;
      display: flex;
      flex-direction: column;
      align-items: center;
      justify-content: center;
      min-height: 400px; /* Đảm bảo chiều cao tối thiểu */
    }

    .page-lucky88 .hero-banner-image {
      width: 100%;
      max-height: 350px; /* Giới hạn chiều cao banner */
      object-fit: cover;
      display: block;
      margin-bottom: var(--page-lucky88-spacing-md);
    }

    .page-lucky88 .hero-content {
      padding: 1rem;
      max-width: 800px;
      z-index: 1; /* Đảm bảo nội dung hiển thị trên ảnh */
    }

    .page-lucky88 .hero-content p {
      font-size: 1.1rem;
      margin-bottom: var(--page-lucky88-spacing-md);
    }

    /* Nút đăng nhập nổi */
    .page-lucky88 .floating-login-btn {
      position: fixed;
      bottom: 20px;
      left: 50%;
      transform: translateX(-50%);
      background: linear-gradient(45deg, var(--page-lucky88-primary-color), #FFC107);
      color: var(--page-lucky88-text-dark);
      padding: 15px 25px;
      border-radius: 50px;
      font-size: 1.2rem;
      font-weight: bold;
      text-align: center;
      box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
      z-index: 1000;
      transition: all 0.3s ease;
      animation: page-lucky88-pulse 2s infinite;
      display: block; /* Mặc định hiển thị */
      white-space: nowrap; /* Ngăn nút xuống dòng */
    }

    .page-lucky88 .floating-login-btn:hover {
      transform: translateX(-50%) scale(1.05);
      box-shadow: 0 6px 20px rgba(0, 0, 0, 0.4);
    }

    @keyframes page-lucky88-pulse {
      0% { transform: translateX(-50%) scale(1); }
      50% { transform: translateX(-50%) scale(1.02); }
      100% { transform: translateX(-50%) scale(1); }
    }

    /* Game List Section */
    .page-lucky88 .game-list {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
      gap: 1rem;
      margin-top: var(--page-lucky88-spacing-md);
    }

    .page-lucky88 .game-item {
      background-color: var(--page-lucky88-light-bg);
      padding: 1rem;
      border-radius: 10px;
      text-align: center;
      box-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
      transition: transform 0.3s ease;
      border: 1px solid var(--page-lucky88-border-color);
    }

    .page-lucky88 .game-item:hover {
      transform: translateY(-5px);
      box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
    }

    .page-lucky88 .game-item img {
      width: 80px;
      height: 80px;
      object-fit: contain;
      margin-bottom: 0.5rem;
      border-radius: 5px;
    }

    .page-lucky88 .game-item h3 {
      font-size: 1.1rem;
      margin-top: 0.5rem;
      color: var(--page-lucky88-text-light);
    }
    .page-lucky88 .game-item a {
        color: var(--page-lucky88-text-light); /* Đảm bảo màu chữ dễ đọc trên nền tối */
        display: block;
        text-decoration: none;
    }
    .page-lucky88 .game-item a:hover {
        color: var(--page-lucky88-primary-color);
        text-decoration: none;
    }

    /* Hướng dẫn và Ưu đãi */
    .page-lucky88 .content-card {
      background-color: var(--page-lucky88-light-bg);
      padding: var(--page-lucky88-spacing-md);
      border-radius: 10px;
      margin-bottom: var(--page-lucky88-spacing-md);
      text-align: left;
      border: 1px solid var(--page-lucky88-border-color);
    }

    .page-lucky88 .content-card ul {
      list-style-type: disc;
      padding-left: 1.5rem;
      margin-bottom: 1rem;
    }

    .page-lucky88 .content-card ol {
      list-style-type: decimal;
      padding-left: 1.5rem;
      margin-bottom: 1rem;
    }

    .page-lucky88 .content-card li {
      margin-bottom: 0.5rem;
    }

    .page-lucky88 .promo-list {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
      gap: 1.5rem;
      margin-top: var(--page-lucky88-spacing-md);
    }

    .page-lucky88 .promo-item {
      background-color: var(--page-lucky88-light-bg);
      padding: 1.5rem;
      border-radius: 10px;
      text-align: left;
      border: 1px solid var(--page-lucky88-border-color);
      box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .page-lucky88 .promo-item h3 {
      color: var(--page-lucky88-primary-color);
      margin-top: 0;
      margin-bottom: 1rem;
    }

    .page-lucky88 .promo-item p {
      margin-bottom: 1rem;
      flex-grow: 1;
    }

    .page-lucky88 .promo-item .promo-btn {
      display: inline-block;
      background-color: var(--page-lucky88-secondary-color);
      color: white;
      padding: 10px 20px;
      border-radius: 5px;
      text-decoration: none;
      font-weight: bold;
      transition: background-color 0.3s ease;
    }

    .page-lucky88 .promo-item .promo-btn:hover {
      background-color: #388E3C;
    }

    /* FAQ Section */
    .page-lucky88 .faq-item {
      background-color: var(--page-lucky88-light-bg);
      margin-bottom: 1rem;
      border-radius: 8px;
      overflow: hidden;
      border: 1px solid var(--page-lucky88-border-color);
    }

    .page-lucky88 .faq-question {
      display: flex;
      justify-content: space-between;
      align-items: center;
      padding: 1rem 1.5rem;
      cursor: pointer;
      background-color: #2a2a47; /* Hơi tối hơn light-bg */
      font-weight: bold;
      font-size: 1.1rem;
      color: var(--page-lucky88-text-light);
    }

    .page-lucky88 .faq-question:hover {
      background-color: #333355;
    }

    .page-lucky88 .faq-question .icon {
      font-size: 1.5rem;
      transition: transform 0.3s ease;
    }

    .page-lucky88 .faq-answer {
      padding: 0 1.5rem;
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.5s ease-out, padding 0.5s ease-out;
      background-color: var(--page-lucky88-light-bg);
      color: var(--page-lucky88-text-light);
    }

    .page-lucky88 .faq-answer.active {
      max-height: 300px; /* Điều chỉnh tùy theo nội dung */
      padding: 1rem 1.5rem;
    }

    .page-lucky88 .faq-question.active .icon {
      transform: rotate(180deg);
    }

    /* Responsive adjustments */
    @media (max-width: 768px) {
      .page-lucky88 h1 {
        font-size: 2rem;
      }
      .page-lucky88 h2 {
        font-size: 1.7rem;
      }
      .page-lucky88 h3 {
        font-size: 1.3rem;
      }
      .page-lucky88 .game-list {
        grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
      }
      .page-lucky88 .promo-list {
        grid-template-columns: 1fr;
      }
      .page-lucky88 .floating-login-btn {
        width: calc(100% - 40px); /* Gần full chiều rộng trên di động */
        font-size: 1rem;
        padding: 12px 20px;
      }
    }

    @media (max-width: 480px) {
      .page-lucky88 h1 {
        font-size: 1.8rem;
      }
      .page-lucky88 h2 {
        font-size: 1.5rem;
      }
      .page-lucky88 .game-item img {
        width: 60px;
        height: 60px;
      }
      .page-lucky88 .game-item h3 {
        font-size: 1rem;
      }
    }