/* Tổng thể */
    .page-u888 {
      font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
      color: #333;
      line-height: 1.6;
      background-color: #f8f9fa;
      padding: 20px 0;
    }

    /* Đảm bảo nội dung không bị che bởi header cố định */
    .page-u888__hero-section {
      padding-top: 120px; /* Cho desktop */
      text-align: center;
      background-color: #0d1a26; /* Nền tối cho banner */
      color: #fff;
      position: relative;
      overflow: hidden;
      padding-bottom: 40px;
    }

    @media (max-width: 768px) {
      .page-u888__hero-section {
        padding-top: 100px; /* Cho mobile */
      }
    }

    .page-u888__container {
      max-width: 1200px;
      margin: 0 auto;
      padding: 0 15px;
    }

    /* Tiêu đề chính */
    .page-u888__main-heading {
      font-size: 2.8em;
      margin-bottom: 20px;
      color: #ffcc00; /* Màu vàng nổi bật */
      text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
    }

    @media (max-width: 768px) {
      .page-u888__main-heading {
        font-size: 2em;
      }
    }

    .page-u888__sub-heading {
      font-size: 1.5em;
      color: #ddd;
      margin-bottom: 30px;
    }

    /* Banner chính */
    .page-u888__hero-banner {
      width: 100%;
      max-width: 100%;
      height: auto;
      display: block;
      margin: 0 auto 30px auto;
      border-radius: 10px;
      box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
      object-fit: cover;
    }

    @media (max-width: 768px) {
        .page-u888__hero-banner {
            max-width: 100% !important;
            height: auto !important;
        }
    }

    /* Nút đăng nhập/đăng ký nổi */
    .page-u888__floating-button {
      position: fixed;
      bottom: 20px;
      right: 20px;
      background-color: #ffcc00;
      color: #0d1a26;
      padding: 15px 25px;
      border-radius: 50px;
      text-decoration: none;
      font-weight: bold;
      font-size: 1.1em;
      box-shadow: 0 4px 10px rgba(0, 0, 0, 0.2);
      transition: background-color 0.3s ease, transform 0.3s ease;
      z-index: 1000;
      display: flex;
      align-items: center;
      justify-content: center;
      text-align: center;
      border: 2px solid #fff;
    }

    .page-u888__floating-button:hover {
      background-color: #e6b800;
      transform: translateY(-3px);
    }

    @media (max-width: 768px) {
      .page-u888__floating-button {
        left: 50%;
        transform: translateX(-50%);
        width: calc(100% - 40px);
        font-size: 1em;
        padding: 12px 20px;
      }
    }

    /* Các phần nội dung */
    .page-u888__section {
      background-color: #fff;
      padding: 40px 20px;
      margin-bottom: 30px;
      border-radius: 8px;
      box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
    }

    .page-u888__section-title {
      font-size: 2em;
      color: #0d1a26;
      text-align: center;
      margin-bottom: 30px;
      position: relative;
      padding-bottom: 10px;
    }

    .page-u888__section-title::after {
      content: '';
      position: absolute;
      left: 50%;
      bottom: 0;
      transform: translateX(-50%);
      width: 60px;
      height: 3px;
      background-color: #ffcc00;
    }

    .page-u888__text-block {
      margin-bottom: 20px;
      text-align: justify;
    }

    /* Lưới sản phẩm/game */
    .page-u888__grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
      gap: 25px;
      margin-top: 30px;
    }

    .page-u888__grid-item {
      background-color: #f0f2f5;
      border-radius: 8px;
      overflow: hidden;
      box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
      transition: transform 0.3s ease;
      text-align: center;
      display: flex;
      flex-direction: column;
    }

    .page-u888__grid-item:hover {
      transform: translateY(-5px);
    }

    .page-u888__grid-item-image-wrapper {
        width: 100%;
        max-width: 100%;
        overflow: hidden;
        box-sizing: border-box;
    }

    .page-u888__grid-item-image {
      width: 100%;
      max-width: 100%;
      height: 200px; /* Chiều cao cố định cho hình ảnh */
      object-fit: cover;
      display: block;
    }

    @media (max-width: 768px) {
        .page-u888__grid-item-image {
            max-width: 100% !important;
            height: auto !important;
        }
    }

    .page-u888__grid-item-content {
      padding: 20px;
      flex-grow: 1;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .page-u888__grid-item-title {
      font-size: 1.3em;
      color: #0d1a26;
      margin-bottom: 10px;
      min-height: 2.6em; /* Đảm bảo tiêu đề có đủ không gian */
      display: flex;
      align-items: center;
      justify-content: center;
    }

    .page-u888__grid-item-description {
      font-size: 0.95em;
      color: #555;
      margin-bottom: 15px;
      flex-grow: 1;
    }

    .page-u888__grid-item-link {
      display: inline-block;
      background-color: #ffcc00;
      color: #0d1a26;
      padding: 10px 20px;
      border-radius: 5px;
      text-decoration: none;
      font-weight: bold;
      transition: background-color 0.3s ease;
    }

    .page-u888__grid-item-link:hover {
      background-color: #e6b800;
    }

    /* Nhà cung cấp game */
    .page-u888__provider-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(100px, 1fr));
      gap: 15px;
      margin-top: 30px;
      text-align: center;
    }

    .page-u888__provider-logo-wrapper {
        width: 100%;
        max-width: 100%;
        overflow: hidden;
        box-sizing: border-box;
        display: flex;
        justify-content: center;
        align-items: center;
        background-color: #fff;
        border-radius: 8px;
        padding: 10px;
        box-shadow: 0 2px 5px rgba(0,0,0,0.05);
        transition: transform 0.2s ease;
    }

    .page-u888__provider-logo-wrapper:hover {
        transform: scale(1.05);
    }

    .page-u888__provider-logo {
      width: 100px; /* Kích thước cố định cho logo nhà cung cấp */
      height: 100px;
      object-fit: contain;
      display: block;
    }

    @media (max-width: 768px) {
        .page-u888__provider-logo {
            max-width: 100% !important;
            height: auto !important;
        }
    }

    /* FAQ */
    .page-u888__faq-list {
      margin-top: 30px;
    }

    .page-u888__faq-item {
      background-color: #f0f2f5;
      border-radius: 8px;
      margin-bottom: 15px;
      overflow: hidden;
      box-shadow: 0 2px 5px rgba(0, 0, 0, 0.05);
    }

    .page-u888__faq-question {
      display: flex;
      justify-content: space-between;
      align-items: center;
      padding: 15px 20px;
      background-color: #0d1a26;
      color: #fff;
      cursor: pointer;
      font-weight: bold;
      font-size: 1.1em;
      user-select: none;
      border-radius: 8px;
      transition: background-color 0.3s ease;
    }

    .page-u888__faq-question:hover {
      background-color: #1a344d;
    }

    .page-u888__faq-question h3 {
        margin: 0;
        font-size: 1.1em;
        color: #fff;
        pointer-events: none; /* Ngăn chặn h3 chặn sự kiện click */
        flex-grow: 1;
    }

    .page-u888__faq-toggle {
      font-size: 1.5em;
      line-height: 1;
      margin-left: 15px;
      transition: transform 0.3s ease;
      pointer-events: none; /* Ngăn chặn toggle chặn sự kiện click */
    }

    .page-u888__faq-item.active .page-u888__faq-toggle {
      transform: rotate(45deg); /* Dấu + thành x hoặc - */
    }

    .page-u888__faq-answer {
      max-height: 0;
      overflow: hidden;
      padding: 0 15px; /* Giữ padding ngang */
      background-color: #fff;
      color: #333;
      transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1), padding 0.4s ease, opacity 0.4s ease;
      opacity: 0;
      font-size: 0.95em;
      border-bottom-left-radius: 8px;
      border-bottom-right-radius: 8px;
    }

    .page-u888__faq-item.active .page-u888__faq-answer {
      max-height: 2000px !important; /* Đủ lớn để chứa mọi nội dung */
      padding: 20px 15px !important; /* Padding dọc khi mở */
      opacity: 1;
    }

    /* Danh sách nhà cái uy tín */
    .page-u888__ranking-list {
      list-style: none;
      padding: 0;
      margin-top: 30px;
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
      gap: 20px;
    }

    .page-u888__ranking-item {
      background-color: #f0f2f5;
      padding: 20px;
      border-radius: 8px;
      box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
      text-align: center;
      font-weight: bold;
      color: #0d1a26;
      font-size: 1.1em;
      transition: background-color 0.3s ease;
    }

    .page-u888__ranking-item:hover {
      background-color: #e6e8eb;
    }

    /* Phương thức thanh toán */
    .page-u888__payment-methods {
      display: flex;
      flex-wrap: wrap;
      justify-content: center;
      gap: 20px;
      margin-top: 30px;
    }

    .page-u888__payment-item {
      background-color: #fff;
      border: 1px solid #eee;
      border-radius: 8px;
      padding: 15px 25px;
      box-shadow: 0 2px 5px rgba(0, 0, 0, 0.05);
      font-weight: bold;
      color: #0d1a26;
      text-align: center;
      min-width: 120px;
      transition: transform 0.2s ease;
    }

    .page-u888__payment-item:hover {
        transform: translateY(-3px);
    }

    /* Liên hệ */
    .page-u888__contact-info {
        text-align: center;
        margin-top: 30px;
    }

    .page-u888__contact-info p {
        margin-bottom: 10px;
        font-size: 1.1em;
    }

    .page-u888__social-media {
        display: flex;
        justify-content: center;
        gap: 20px;
        margin-top: 20px;
    }

    .page-u888__social-icon-link {
        display: inline-block;
        width: 50px;
        height: 50px;
        background-color: #0d1a26;
        border-radius: 50%;
        display: flex;
        justify-content: center;
        align-items: center;
        transition: background-color 0.3s ease, transform 0.3s ease;
    }

    .page-u888__social-icon-link:hover {
        background-color: #ffcc00;
        transform: scale(1.1);
    }

    .page-u888__social-icon {
        width: 30px;
        height: 30px;
        object-fit: contain;
        max-width: 100% !important;
        height: auto !important;
    }

    /* Responsive adjustments */
    @media (max-width: 768px) {
      .page-u888__section {
        padding: 25px 15px;
      }

      .page-u888__section-title {
        font-size: 1.8em;
      }

      .page-u888__grid {
        grid-template-columns: 1fr;
      }

      .page-u888__provider-grid {
        grid-template-columns: repeat(auto-fit, minmax(80px, 1fr));
      }

      .page-u888__provider-logo {
        width: 80px;
        height: 80px;
      }

      .page-u888__faq-question {
        font-size: 1em;
        padding: 12px 15px;
      }

      .page-u888__faq-question h3 {
          font-size: 1em;
      }

      .page-u888__faq-answer {
          font-size: 0.9em;
      }

      .page-u888__ranking-list {
          grid-template-columns: 1fr;
      }
    }