/* Tổng thể */
    .page-nhacai88a {
      font-family: 'Arial', sans-serif;
      background-color: #000000; /* Nền đen */
      color: #ffffff; /* Chữ trắng */
      line-height: 1.6;
      overflow-x: hidden;
    }

    .page-nhacai88a__container {
      max-width: 1200px;
      margin: 0 auto;
      padding: 0 15px;
    }

    .page-nhacai88a__section {
      padding: 60px 0;
      text-align: center;
    }

    .page-nhacai88a__heading {
      color: #ffd700; /* Chữ vàng */
      margin-bottom: 30px;
      font-size: 2.5em;
      font-weight: bold;
    }

    .page-nhacai88a__sub-heading {
      color: #ffffff; /* Chữ trắng */
      margin-bottom: 20px;
      font-size: 1.8em;
    }

    .page-nhacai88a__text {
      font-size: 1.1em;
      margin-bottom: 20px;
    }

    .page-nhacai88a__button {
      display: inline-block;
      background-color: #ffd700; /* Nút vàng */
      color: #000000; /* Chữ đen trên nút vàng */
      padding: 15px 30px;
      border-radius: 5px;
      text-decoration: none;
      font-weight: bold;
      transition: background-color 0.3s ease, color 0.3s ease;
      border: none;
      cursor: pointer;
      font-size: 1.1em;
    }

    .page-nhacai88a__button:hover {
      background-color: #e6c200;
      color: #000000;
    }

    /* Hero Section */
    .page-nhacai88a__hero-section {
      background-color: #000000;
      padding-top: 150px; /* An toàn cho thanh điều hướng cố định */
      text-align: center;
      position: relative;
      overflow: hidden;
      min-height: 500px;
    }

    .page-nhacai88a__hero-image-wrapper {
      width: 100%;
      max-width: 100%;
      overflow: hidden;
      box-sizing: border-box;
      margin-bottom: 30px;
    }

    .page-nhacai88a__hero-image {
      max-width: 100%;
      height: auto;
      display: block;
      margin: 0 auto;
      border-radius: 8px;
    }

    .page-nhacai88a__hero-content {
      position: relative;
      z-index: 2;
      padding: 20px 15px;
    }

    .page-nhacai88a__hero-title {
      font-size: 3.5em;
      color: #ffd700;
      margin-bottom: 15px;
      line-height: 1.2;
    }

    .page-nhacai88a__hero-description {
      font-size: 1.3em;
      margin-bottom: 30px;
      color: #ffffff;
      max-width: 800px;
      margin-left: auto;
      margin-right: auto;
    }

    /* Nút nổi đăng ký/đăng nhập */
    .page-nhacai88a__floating-buttons {
      position: fixed;
      bottom: 20px;
      right: 20px;
      z-index: 1000;
      display: flex;
      flex-direction: column;
      gap: 10px;
    }

    .page-nhacai88a__floating-button {
      background-color: #ffd700;
      color: #000000;
      padding: 12px 20px;
      border-radius: 50px;
      text-decoration: none;
      font-weight: bold;
      box-shadow: 0 4px 10px rgba(0, 0, 0, 0.3);
      transition: transform 0.2s ease;
      font-size: 1em;
      text-align: center;
      white-space: nowrap;
    }

    .page-nhacai88a__floating-button:hover {
      transform: translateY(-3px);
      background-color: #e6c200;
    }

    /* Giới thiệu */
    .page-nhacai88a__about-section {
      background-color: #1a1a1a;
      padding-top: 60px;
      padding-bottom: 60px;
    }

    .page-nhacai88a__about-content {
      display: flex;
      flex-direction: column;
      gap: 25px;
      text-align: left;
    }

    .page-nhacai88a__about-item {
      padding: 20px;
      background-color: #2a2a2a;
      border-radius: 8px;
      box-shadow: 0 2px 5px rgba(0, 0, 0, 0.2);
    }

    .page-nhacai88a__about-item-title {
      color: #ffd700;
      margin-bottom: 10px;
      font-size: 1.5em;
    }

    .page-nhacai88a__about-item-text {
      color: #ffffff;
    }


    /* Danh mục trò chơi */
    .page-nhacai88a__game-categories {
      background-color: #000000;
      padding-top: 60px;
      padding-bottom: 60px;
    }

    .page-nhacai88a__game-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
      gap: 30px;
      margin-top: 40px;
    }

    .page-nhacai88a__game-card {
      background-color: #1a1a1a;
      border-radius: 10px;
      overflow: hidden;
      box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
      transition: transform 0.3s ease;
      text-align: center;
      padding-bottom: 20px;
    }

    .page-nhacai88a__game-card:hover {
      transform: translateY(-5px);
    }

    .page-nhacai88a__game-card-image-wrapper {
      width: 100%;
      max-width: 100%;
      overflow: hidden;
      box-sizing: border-box;
    }

    .page-nhacai88a__game-card-image {
      width: 100%;
      height: auto;
      display: block;
      object-fit: cover;
      border-bottom: 3px solid #ffd700;
    }

    .page-nhacai88a__game-card-title {
      font-size: 1.5em;
      color: #ffd700;
      margin: 20px 10px 10px;
    }

    .page-nhacai88a__game-card-description {
      font-size: 0.95em;
      color: #cccccc;
      padding: 0 15px;
    }

    /* Nhà cung cấp game */
    .page-nhacai88a__providers-section {
      background-color: #1a1a1a;
      padding-top: 60px;
      padding-bottom: 60px;
    }

    .page-nhacai88a__providers-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(100px, 1fr));
      gap: 20px;
      margin-top: 40px;
      align-items: center;
      justify-items: center;
    }

    .page-nhacai88a__provider-logo-wrapper {
      width: 100%;
      max-width: 100%;
      overflow: hidden;
      box-sizing: border-box;
      max-width: 150px; /* Giới hạn kích thước logo */
    }

    .page-nhacai88a__provider-logo {
      width: 100%;
      height: auto;
      display: block;
      filter: grayscale(100%);
      opacity: 0.7;
      transition: filter 0.3s ease, opacity 0.3s ease;
    }

    .page-nhacai88a__provider-logo:hover {
      filter: grayscale(0%);
      opacity: 1;
    }

    /* Phương thức thanh toán */
    .page-nhacai88a__payments-section {
      background-color: #000000;
      padding-top: 60px;
      padding-bottom: 60px;
    }

    .page-nhacai88a__payments-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(100px, 1fr));
      gap: 20px;
      margin-top: 40px;
      align-items: center;
      justify-items: center;
    }

    .page-nhacai88a__payment-logo-wrapper {
      width: 100%;
      max-width: 100%;
      overflow: hidden;
      box-sizing: border-box;
      max-width: 150px; /* Giới hạn kích thước logo */
    }

    .page-nhacai88a__payment-logo {
      width: 100%;
      height: auto;
      display: block;
      filter: grayscale(100%);
      opacity: 0.7;
      transition: filter 0.3s ease, opacity 0.3s ease;
    }

    .page-nhacai88a__payment-logo:hover {
      filter: grayscale(0%);
      opacity: 1;
    }

    /* FAQ Section */
    .page-nhacai88a__faq-section {
      background-color: #1a1a1a;
      padding-top: 60px;
      padding-bottom: 60px;
    }

    .page-nhacai88a__faq-list {
      max-width: 800px;
      margin: 40px auto 0;
      text-align: left;
    }

    .page-nhacai88a__faq-item {
      background-color: #2a2a2a;
      margin-bottom: 15px;
      border-radius: 8px;
      overflow: hidden;
      box-shadow: 0 2px 5px rgba(0, 0, 0, 0.2);
    }

    .page-nhacai88a__faq-question {
      display: flex;
      justify-content: space-between;
      align-items: center;
      padding: 20px 25px;
      cursor: pointer;
      background-color: #333333;
      color: #ffd700;
      font-size: 1.2em;
      font-weight: bold;
      user-select: none;
      transition: background-color 0.3s ease;
    }

    .page-nhacai88a__faq-question:hover {
      background-color: #444444;
    }

    .page-nhacai88a__faq-question h3 {
      margin: 0;
      pointer-events: none; /* Ngăn chặn sự kiện click trên h3 */
      color: #ffd700;
    }

    .page-nhacai88a__faq-toggle {
      font-size: 1.5em;
      font-weight: bold;
      color: #ffd700;
      pointer-events: none; /* Ngăn chặn sự kiện click trên toggle */
      transition: transform 0.3s ease;
    }

    .page-nhacai88a__faq-item.active .page-nhacai88a__faq-toggle {
      transform: rotate(45deg); /* Xoay dấu + thành X hoặc - */
    }

    .page-nhacai88a__faq-answer {
      max-height: 0;
      overflow: hidden;
      padding: 0 25px;
      background-color: #2a2a2a;
      color: #ffffff;
      transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1), padding 0.4s ease, opacity 0.4s ease;
      opacity: 0;
    }

    .page-nhacai88a__faq-item.active .page-nhacai88a__faq-answer {
      max-height: 2000px !important; /* Đủ lớn để chứa mọi nội dung */
      padding: 20px 25px !important;
      opacity: 1;
    }

    /* Mobile Responsive */
    @media (max-width: 768px) {
      .page-nhacai88a__hero-section {
        padding-top: 100px; /* An toàn cho thanh điều hướng cố định trên di động */
        min-height: 400px;
      }

      .page-nhacai88a__hero-title {
        font-size: 2.5em;
      }

      .page-nhacai88a__hero-description {
        font-size: 1.1em;
      }

      .page-nhacai88a__heading {
        font-size: 2em;
      }

      .page-nhacai88a__sub-heading {
        font-size: 1.5em;
      }

      .page-nhacai88a__section {
        padding: 40px 0;
      }

      .page-nhacai88a__floating-buttons {
        bottom: 15px;
        right: 15px;
        flex-direction: row;
        gap: 8px;
      }

      .page-nhacai88a__floating-button {
        padding: 10px 15px;
        font-size: 0.9em;
      }

      .page-nhacai88a__game-grid {
        grid-template-columns: 1fr;
      }

      .page-nhacai88a__providers-grid,
      .page-nhacai88a__payments-grid {
        grid-template-columns: repeat(auto-fit, minmax(80px, 1fr));
      }

      .page-nhacai88a__provider-logo-wrapper,
      .page-nhacai88a__payment-logo-wrapper {
        max-width: 100px;
      }

      .page-nhacai88a__game-card-image,
      .page-nhacai88a__hero-image,
      .page-nhacai88a__provider-logo,
      .page-nhacai88a__payment-logo {
        max-width: 100% !important;
        height: auto !important;
      }

      .page-nhacai88a__game-card-image-wrapper,
      .page-nhacai88a__hero-image-wrapper,
      .page-nhacai88a__provider-logo-wrapper,
      .page-nhacai88a__payment-logo-wrapper {
        width: 100% !important;
        max-width: 100% !important;
        overflow: hidden !important;
        box-sizing: border-box !important;
      }

      .page-nhacai88a__faq-question {
        font-size: 1.1em;
        padding: 15px 20px;
      }

      .page-nhacai88a__faq-answer {
        padding: 0 20px;
      }

      .page-nhacai88a__faq-item.active .page-nhacai88a__faq-answer {
        padding: 15px 20px !important;
      }
    }