/* Tổng quan và biến */
    :root {
      --page-banca28-primary-color: #e44d26; /* Màu cam đỏ */
      --page-banca28-secondary-color: #f7b731; /* Màu vàng cam */
      --page-banca28-dark-color: #2c3e50; /* Màu xanh đen */
      --page-banca28-light-color: #ecf0f1; /* Màu xám nhạt */
      --page-banca28-text-color: #333;
      --page-banca28-white: #fff;
      --page-banca28-border-radius: 8px;
      --page-banca28-padding-section: 40px 20px;
      --page-banca28-gap: 20px;
    }

    /* Đảm bảo tất cả các phần tử kế thừa box-sizing */
    .page-banca28 *, .page-banca28 *::before, .page-banca28 *::after {
      box-sizing: border-box;
    }

    .page-banca28 {
      font-family: 'Arial', sans-serif;
      line-height: 1.6;
      color: var(--page-banca28-text-color);
      background-color: var(--page-banca28-light-color);
      overflow-x: hidden; /* Ngăn chặn cuộn ngang */
    }

    /* Phần Hero */
    .page-banca28__hero-section {
      position: relative;
      width: 100%;
      min-height: 400px;
      display: flex;
      flex-direction: column;
      justify-content: center;
      align-items: center;
      text-align: center;
      color: var(--page-banca28-white);
      overflow: hidden;
      padding-top: 10px; /* Cho khoảng trống để header cố định không che */
    }

    .page-banca28__hero-background {
      position: absolute;
      top: 0;
      left: 0;
      width: 100%;
      height: 100%;
      object-fit: cover;
      z-index: -1;
      filter: brightness(0.6); /* Giảm độ sáng để chữ dễ đọc */
      max-width: 100%; /* Đảm bảo hình ảnh không tràn */
      height: auto; /* Giữ tỷ lệ khung hình */
    }

    .page-banca28__hero-content {
      position: relative;
      z-index: 1;
      padding: 20px;
      max-width: 900px;
      margin: 0 auto;
    }

    .page-banca28__hero-title {
      font-size: 2.8em;
      margin-bottom: 10px;
      line-height: 1.2;
      color: var(--page-banca28-white);
      text-shadow: 2px 2px 4px rgba(0,0,0,0.7);
    }

    .page-banca28__hero-subtitle {
      font-size: 1.3em;
      margin-bottom: 30px;
      color: var(--page-banca28-light-color);
      text-shadow: 1px 1px 3px rgba(0,0,0,0.5);
    }

    /* Nút Đăng ký/Đăng nhập nổi bật */
    .page-banca28__floating-button-wrapper {
        position: fixed;
        bottom: 20px;
        left: 50%;
        transform: translateX(-50%);
        z-index: 1000;
        width: 100%;
        max-width: 320px; /* Giới hạn chiều rộng cho di động */
        padding: 0 15px; /* Giữ khoảng cách ở các cạnh */
        box-sizing: border-box;
    }

    .page-banca28__floating-button {
      display: block; /* Đảm bảo nút chiếm toàn bộ chiều rộng có sẵn */
      width: 100%;
      background-color: var(--page-banca28-primary-color);
      color: var(--page-banca28-white);
      padding: 15px 25px;
      border: none;
      border-radius: var(--page-banca28-border-radius);
      font-size: 1.2em;
      font-weight: bold;
      text-align: center;
      text-decoration: none;
      cursor: pointer;
      box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
      transition: background-color 0.3s ease, transform 0.2s ease;
    }

    .page-banca28__floating-button:hover {
      background-color: #c0392b; /* Màu tối hơn khi hover */
      transform: translateY(-2px);
    }

    /* Phần chung cho các section */
    .page-banca28__section {
      padding: var(--page-banca28-padding-section);
      max-width: 1200px;
      margin: 0 auto;
    }

    .page-banca28__section-title {
      font-size: 2.2em;
      color: var(--page-banca28-dark-color);
      text-align: center;
      margin-bottom: 30px;
      position: relative;
    }

    .page-banca28__section-title::after {
      content: '';
      position: absolute;
      left: 50%;
      bottom: -10px;
      transform: translateX(-50%);
      width: 60px;
      height: 4px;
      background-color: var(--page-banca28-primary-color);
      border-radius: 2px;
    }

    .page-banca28__text-content {
      font-size: 1.1em;
      margin-bottom: 20px;
      text-align: justify;
    }

    /* Lưới trò chơi */
    .page-banca28__game-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
      gap: var(--page-banca28-gap);
      margin-top: 30px;
    }

    .page-banca28__game-card {
      background-color: var(--page-banca28-white);
      border-radius: var(--page-banca28-border-radius);
      box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
      overflow: hidden;
      text-align: center;
      transition: transform 0.3s ease, box-shadow 0.3s ease;
    }

    .page-banca28__game-card:hover {
      transform: translateY(-5px);
      box-shadow: 0 8px 20px rgba(0, 0, 0, 0.15);
    }

    .page-banca28__game-card-image {
      width: 100%;
      height: 200px;
      object-fit: cover;
      display: block;
      max-width: 100%; /* Đảm bảo hình ảnh không tràn */
      height: auto; /* Giữ tỷ lệ khung hình */
    }

    .page-banca28__game-card-content {
      padding: 20px;
    }

    .page-banca28__game-card-title {
      font-size: 1.4em;
      color: var(--page-banca28-dark-color);
      margin-bottom: 10px;
    }

    .page-banca28__game-card-description {
      font-size: 0.95em;
      color: #666;
      margin-bottom: 15px;
    }

    /* Ưu đãi & Khuyến mãi */
    .page-banca28__promo-list {
      display: flex;
      flex-direction: column;
      gap: var(--page-banca28-gap);
      margin-top: 30px;
    }

    .page-banca28__promo-item {
      background-color: var(--page-banca28-white);
      border-radius: var(--page-banca28-border-radius);
      box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
      padding: 25px;
      display: flex;
      align-items: center;
      gap: 20px;
    }

    .page-banca28__promo-icon {
      flex-shrink: 0;
      width: 80px;
      height: 80px;
      object-fit: contain;
      max-width: 100%; /* Đảm bảo hình ảnh không tràn */
      height: auto; /* Giữ tỷ lệ khung hình */
    }

    .page-banca28__promo-content h3 {
      font-size: 1.3em;
      color: var(--page-banca28-primary-color);
      margin-bottom: 5px;
    }

    .page-banca28__promo-content p {
      font-size: 1em;
      color: var(--page-banca28-text-color);
    }

    /* Hướng dẫn */
    .page-banca28__steps-list {
      display: flex;
      flex-direction: column;
      gap: var(--page-banca28-gap);
      margin-top: 30px;
    }

    .page-banca28__step-item {
      background-color: var(--page-banca28-white);
      border-radius: var(--page-banca28-border-radius);
      box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
      padding: 25px;
      display: flex;
      align-items: flex-start;
      gap: 20px;
    }

    .page-banca28__step-number {
      flex-shrink: 0;
      width: 40px;
      height: 40px;
      background-color: var(--page-banca28-primary-color);
      color: var(--page-banca28-white);
      border-radius: 50%;
      display: flex;
      justify-content: center;
      align-items: center;
      font-size: 1.5em;
      font-weight: bold;
    }

    .page-banca28__step-content h3 {
      font-size: 1.3em;
      color: var(--page-banca28-dark-color);
      margin-bottom: 5px;
    }

    .page-banca28__step-content p {
      font-size: 1em;
      color: var(--page-banca28-text-color);
    }

    /* Phần Tải ứng dụng */
    .page-banca28__download-section {
      text-align: center;
      background-color: var(--page-banca28-dark-color);
      color: var(--page-banca28-white);
      padding: var(--page-banca28-padding-section);
    }

    .page-banca28__download-title {
      color: var(--page-banca28-white);
      font-size: 2.2em;
      margin-bottom: 20px;
    }

    .page-banca28__download-description {
      font-size: 1.1em;
      margin-bottom: 30px;
      max-width: 800px;
      margin-left: auto;
      margin-right: auto;
    }

    .page-banca28__download-buttons {
      display: flex;
      justify-content: center;
      gap: var(--page-banca28-gap);
      flex-wrap: wrap; /* Cho phép các nút xuống dòng trên di động */
    }

    .page-banca28__download-button {
      display: flex;
      align-items: center;
      background-color: var(--page-banca28-secondary-color);
      color: var(--page-banca28-dark-color);
      padding: 12px 25px;
      border-radius: var(--page-banca28-border-radius);
      font-size: 1.1em;
      font-weight: bold;
      text-decoration: none;
      transition: background-color 0.3s ease;
    }

    .page-banca28__download-button:hover {
      background-color: #f0a81d;
    }

    .page-banca28__download-button-icon {
      margin-right: 10px;
      width: 30px;
      height: 30px;
      object-fit: contain;
      max-width: 100%; /* Đảm bảo hình ảnh không tràn */
      height: auto; /* Giữ tỷ lệ khung hình */
    }

    /* FAQ Section */
    .page-banca28__faq-section {
      padding: var(--page-banca28-padding-section);
      max-width: 900px;
      margin: 0 auto;
    }

    .page-banca28__faq-list {
      margin-top: 30px;
      list-style: none;
      padding: 0;
    }

    .page-banca28__faq-item {
      background-color: var(--page-banca28-white);
      border-radius: var(--page-banca28-border-radius);
      margin-bottom: 15px;
      box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
      overflow: hidden; /* Quan trọng cho max-height transition */
    }

    .page-banca28__faq-question {
      display: flex;
      justify-content: space-between;
      align-items: center;
      padding: 15px 20px;
      cursor: pointer;
      background-color: #f9f9f9;
      border-bottom: 1px solid #eee;
      transition: background-color 0.3s ease;
      user-select: none;
    }

    .page-banca28__faq-question:hover {
      background-color: #f0f0f0;
    }

    .page-banca28__faq-question h3 {
      margin: 0;
      font-size: 1.1em;
      color: var(--page-banca28-dark-color);
      flex-grow: 1;
      text-align: left;
      pointer-events: none; /* Ngăn chặn h3 chặn sự kiện click */
    }

    .page-banca28__faq-toggle {
      font-size: 1.5em;
      font-weight: bold;
      color: var(--page-banca28-primary-color);
      margin-left: 15px;
      pointer-events: none; /* Ngăn chặn toggle chặn sự kiện click */
    }

    .page-banca28__faq-answer {
      max-height: 0;
      overflow: hidden;
      padding: 0 20px;
      opacity: 0;
      transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1), padding 0.4s ease, opacity 0.4s ease;
      color: var(--page-banca28-text-color);
      font-size: 0.95em;
      text-align: justify;
    }

    .page-banca28__faq-item.active .page-banca28__faq-answer {
      max-height: 2000px !important; /* Đủ lớn để chứa mọi nội dung */
      padding: 20px !important;
      opacity: 1;
    }

    /* Kết luận */
    .page-banca28__conclusion-section {
      padding: var(--page-banca28-padding-section);
      text-align: center;
      background-color: var(--page-banca28-primary-color);
      color: var(--page-banca28-white);
    }

    .page-banca28__conclusion-title {
      font-size: 2.2em;
      margin-bottom: 20px;
      color: var(--page-banca28-white);
    }

    .page-banca28__conclusion-text {
      font-size: 1.1em;
      margin-bottom: 30px;
      max-width: 800px;
      margin-left: auto;
      margin-right: auto;
    }

    /* Nút chính */
    .page-banca28__main-button {
      display: inline-block;
      background-color: var(--page-banca28-secondary-color);
      color: var(--page-banca28-dark-color);
      padding: 15px 30px;
      border-radius: var(--page-banca28-border-radius);
      font-size: 1.2em;
      font-weight: bold;
      text-decoration: none;
      transition: background-color 0.3s ease;
    }

    .page-banca28__main-button:hover {
      background-color: #f0a81d;
    }

    /* Mobile Responsive */
    @media (max-width: 768px) {
      .page-banca28__hero-section {
        min-height: 300px;
        padding-top: 10px !important; /* Đảm bảo khoảng trống trên di động */
      }

      .page-banca28__hero-title {
        font-size: 2em;
      }

      .page-banca28__hero-subtitle {
        font-size: 1em;
      }

      .page-banca28__section-title {
        font-size: 1.8em;
      }

      .page-banca28__text-content,
      .page-banca28__game-card-description,
      .page-banca28__promo-content p,
      .page-banca28__step-content p,
      .page-banca28__download-description,
      .page-banca28__conclusion-text,
      .page-banca28__faq-answer {
        font-size: 0.95em;
      }

      .page-banca28__game-grid {
        grid-template-columns: 1fr;
      }

      .page-banca28__promo-item,
      .page-banca28__step-item {
        flex-direction: column;
        text-align: center;
        padding: 20px;
      }

      .page-banca28__promo-icon,
      .page-banca28__step-number {
        margin-bottom: 10px;
      }

      .page-banca28__promo-content,
      .page-banca28__step-content {
        width: 100%;
      }
      .page-banca28__promo-content h3,
      .page-banca28__step-content h3 {
        text-align: center;
      }

      .page-banca28__download-buttons {
        flex-direction: column;
        align-items: center;
      }

      .page-banca28__download-button {
        width: 100%;
        max-width: 280px;
        justify-content: center;
      }

      .page-banca28__faq-question {
        padding: 12px 15px;
      }

      .page-banca28__faq-question h3 {
        font-size: 1em;
      }

      .page-banca28__faq-toggle {
        font-size: 1.3em;
      }

      .page-banca28__faq-answer {
        padding: 0 15px;
      }

      .page-banca28__faq-item.active .page-banca28__faq-answer {
        padding: 15px !important;
      }
      
      /* List items responsive specific rules */
      .page-banca28__promo-list,
      .page-banca28__steps-list,
      .page-banca28__faq-list {
          width: 100% !important;
          max-width: 100% !important;
          box-sizing: border-box !important;
          padding: 0 !important;
          margin-left: 0 !important;
          margin-right: 0 !important;
      }

      .page-banca28__promo-item,
      .page-banca28__step-item,
      .page-banca28__faq-item {
          width: 100% !important;
          max-width: 100% !important;
          box-sizing: border-box !important;
          margin-left: 0 !important;
          margin-right: 0 !important;
          word-wrap: break-word !important;
          overflow-wrap: break-word !important;
          word-break: break-word !important;
      }

      .page-banca28__hero-background,
      .page-banca28__game-card-image,
      .page-banca28__promo-icon,
      .page-banca28__download-button-icon {
        max-width: 100% !important;
        height: auto !important;
      }
    }

    @media (max-width: 480px) {
      .page-banca28__hero-title {
        font-size: 1.8em;
      }
      .page-banca28__section-title {
        font-size: 1.6em;
      }
      .page-banca28__download-title,
      .page-banca28__conclusion-title {
        font-size: 1.8em;
      }
    }