/* Tổng thể */
    .page-k9cc11 {
      font-family: 'Arial', sans-serif;
      color: #333;
      line-height: 1.6;
      background-color: #f8f9fa;
      padding-bottom: 80px; /* Khoảng trống cho nút nổi */
    }

    /* Hero Section */
    .page-k9cc11__hero-section {
      position: relative;
      width: 100%;
      height: 400px; /* Điều chỉnh chiều cao cho banner */
      display: flex;
      align-items: center;
      justify-content: center;
      text-align: center;
      color: #fff;
      overflow: hidden;
      padding-top: 10px; /* Đảm bảo không bị che bởi header cố định */
      box-sizing: border-box;
    }
    .page-k9cc11__hero-background {
      position: absolute;
      top: 0;
      left: 0;
      width: 100%;
      height: 100%;
      object-fit: cover;
      z-index: -1;
    }
    .page-k9cc11__hero-content {
      position: relative;
      z-index: 1;
      padding: 20px;
      max-width: 900px;
      background-color: rgba(0, 0, 0, 0.5); /* Lớp phủ để văn bản dễ đọc hơn */
      border-radius: 8px;
    }
    .page-k9cc11__hero-title {
      font-size: 2.5em;
      margin-bottom: 10px;
      color: #ffda44; /* Màu vàng nổi bật */
      text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.7);
    }
    .page-k9cc11__hero-description {
      font-size: 1.1em;
      margin-bottom: 20px;
      color: #e0e0e0;
    }
    .page-k9cc11__cta-button {
      display: inline-block;
      background-color: #007bff; /* Màu xanh dương */
      color: #fff;
      padding: 12px 25px;
      border-radius: 5px;
      text-decoration: none;
      font-weight: bold;
      transition: background-color 0.3s ease;
      cursor: pointer; /* Để trông giống nút */
      border: none;
      font-size: 1em;
    }
    .page-k9cc11__cta-button:hover {
      background-color: #0056b3;
    }

    /* General Section Styling */
    .page-k9cc11__section {
      padding: 40px 20px;
      margin-bottom: 20px;
      background-color: #fff;
      border-radius: 8px;
      box-shadow: 0 2px 5px rgba(0,0,0,0.1);
      max-width: 1200px;
      margin-left: auto;
      margin-right: auto;
    }
    .page-k9cc11__section-title {
      font-size: 2em;
      color: #2c3e50;
      text-align: center;
      margin-bottom: 30px;
      position: relative;
    }
    .page-k9cc11__section-title::after {
      content: '';
      display: block;
      width: 60px;
      height: 3px;
      background-color: #007bff;
      margin: 10px auto 0;
    }

    /* Content Blocks */
    .page-k9cc11__text-block {
      margin-bottom: 20px;
      text-align: justify;
    }
    .page-k9cc11__text-block p {
      margin-bottom: 15px;
    }
    .page-k9cc11__text-block strong {
      color: #007bff;
    }

    /* Game List */
    .page-k9cc11__game-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
      gap: 25px;
      margin-top: 30px;
      justify-content: center;
    }
    .page-k9cc11__game-item {
      background-color: #f0f8ff;
      border-radius: 10px;
      overflow: hidden;
      box-shadow: 0 4px 10px rgba(0,0,0,0.1);
      transition: transform 0.3s ease, box-shadow 0.3s ease;
      text-align: center;
      padding-bottom: 20px;
      box-sizing: border-box; /* Quan trọng cho responsive */
    }
    .page-k9cc11__game-item:hover {
      transform: translateY(-5px);
      box-shadow: 0 6px 15px rgba(0,0,0,0.15);
    }
    .page-k9cc11__game-image {
      width: 100%;
      height: 200px; /* Chiều cao cố định cho hình ảnh trò chơi */
      object-fit: cover;
      display: block;
      border-bottom: 3px solid #007bff;
    }
    .page-k9cc11__game-title {
      font-size: 1.3em;
      color: #2c3e50;
      margin: 15px 10px 10px;
    }
    .page-k9cc11__game-description {
      font-size: 0.95em;
      color: #555;
      padding: 0 15px;
    }

    /* App Download Section */
    .page-k9cc11__download-steps {
      display: flex;
      flex-wrap: wrap;
      justify-content: center;
      gap: 30px;
      margin-top: 30px;
    }
    .page-k9cc11__download-step {
      flex: 1;
      min-width: 280px;
      max-width: 350px;
      background-color: #e6f2ff;
      padding: 25px;
      border-radius: 10px;
      text-align: center;
      box-shadow: 0 3px 8px rgba(0,0,0,0.1);
      border: 1px solid #cce0ff;
      box-sizing: border-box; /* Quan trọng cho responsive */
    }
    .page-k9cc11__download-step-icon {
      font-size: 2.5em;
      color: #007bff;
      margin-bottom: 15px;
    }
    .page-k9cc11__download-step-title {
      font-size: 1.2em;
      color: #2c3e50;
      margin-bottom: 10px;
    }
    .page-k9cc11__download-step-description {
      color: #555;
      font-size: 0.95em;
    }
    .page-k9cc11__qr-code-wrapper {
      text-align: center;
      margin-top: 30px;
    }
    .page-k9cc11__qr-code-image {
      width: 250px;
      height: 250px;
      border: 5px solid #007bff;
      border-radius: 10px;
      display: inline-block; /* Để căn giữa */
    }

    /* Floating CTA Button */
    .page-k9cc11__floating-cta {
      position: fixed;
      bottom: 20px;
      left: 50%;
      transform: translateX(-50%);
      background-color: #ff4444; /* Màu đỏ nổi bật */
      color: #fff;
      padding: 15px 30px;
      border-radius: 50px;
      text-decoration: none;
      font-weight: bold;
      font-size: 1.1em;
      box-shadow: 0 5px 15px rgba(0,0,0,0.3);
      z-index: 1000;
      transition: background-color 0.3s ease;
      white-space: nowrap; /* Ngăn chặn xuống dòng */
    }
    .page-k9cc11__floating-cta:hover {
      background-color: #cc0000;
    }

    /* FAQ Section */
    .page-k9cc11__faq-list {
      margin-top: 30px;
    }
    .page-k9cc11__faq-item {
      background-color: #f9f9f9;
      border: 1px solid #eee;
      border-radius: 8px;
      margin-bottom: 15px;
      overflow: hidden;
    }
    .page-k9cc11__faq-question {
      display: flex;
      justify-content: space-between;
      align-items: center;
      padding: 15px 20px;
      background-color: #e9ecef;
      cursor: pointer;
      user-select: none;
      font-weight: bold;
      color: #2c3e50;
      transition: background-color 0.3s ease;
    }
    .page-k9cc11__faq-question:hover {
      background-color: #e0e0e0;
    }
    .page-k9cc11__faq-question h3 {
      margin: 0;
      font-size: 1.1em;
      flex-grow: 1;
      pointer-events: none; /* Ngăn chặn h3 chặn sự kiện click */
      word-wrap: break-word; /* Đảm bảo văn bản dài không tràn */
      overflow-wrap: break-word;
    }
    .page-k9cc11__faq-toggle {
      font-size: 1.5em;
      margin-left: 15px;
      transition: transform 0.3s ease;
      pointer-events: none; /* Ngăn chặn toggle chặn sự kiện click */
    }
    .page-k9cc11__faq-item.active .page-k9cc11__faq-toggle {
      transform: rotate(45deg); /* Biến + thành X hoặc - */
    }
    .page-k9cc11__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: #555;
    }
    .page-k9cc11__faq-item.active .page-k9cc11__faq-answer {
      max-height: 2000px !important; /* Đủ lớn để chứa mọi nội dung */
      padding: 20px !important;
      opacity: 1;
    }
    .page-k9cc11__faq-answer p {
      margin-bottom: 10px;
    }

    /* Responsive Design */
    @media (max-width: 768px) {
      .page-k9cc11__hero-section {
        height: 300px;
        padding-top: 10px; /* Đảm bảo không bị che bởi header cố định trên di động */
      }
      .page-k9cc11__hero-title {
        font-size: 1.8em;
      }
      .page-k9cc11__hero-description {
        font-size: 0.9em;
      }
      .page-k9cc11__cta-button {
        padding: 10px 20px;
        font-size: 0.9em;
      }

      .page-k9cc11__section {
        padding: 30px 15px;
      }
      .page-k9cc11__section-title {
        font-size: 1.6em;
      }

      .page-k9cc11__game-grid {
        grid-template-columns: 1fr; /* Một cột trên di động */
      }
      .page-k9cc11__game-item {
        margin: 0 auto; /* Căn giữa các item */
        max-width: 95% !important; /* Đảm bảo item không tràn màn hình */
        box-sizing: border-box !important;
        width: 100% !important;
      }
      .page-k9cc11__game-image {
        height: 180px;
      }

      .page-k9cc11__download-steps {
        flex-direction: column;
        align-items: center;
      }
      .page-k9cc11__download-step {
        width: 100% !important;
        max-width: 95% !important;
        box-sizing: border-box !important;
        padding: 20px;
        margin-left: 0 !important;
        margin-right: 0 !important;
        word-wrap: break-word !important;
        overflow-wrap: break-wrap !important;
        word-break: break-word !important;
      }
      .page-k9cc11__qr-code-image {
        width: 200px;
        height: 200px;
      }

      .page-k9cc11__floating-cta {
        padding: 12px 20px;
        font-size: 1em;
      }

      .page-k9cc11__faq-question {
        padding: 12px 15px;
      }
      .page-k9cc11__faq-question h3 {
        font-size: 1em;
      }
      .page-k9cc11__faq-answer {
        padding: 0 15px;
      }
      .page-k9cc11__faq-item.active .page-k9cc11__faq-answer {
        padding: 15px !important;
      }
    }