/* Tổng thể */
    .page-ku6869 {
      font-family: 'Arial', sans-serif;
      color: #333;
      line-height: 1.6;
      background-color: #f8f9fa;
      padding-bottom: 80px; /* Để tránh nút đăng nhập nổi bị che khuất nội dung */
    }

    /* Các phần chung */
    .page-ku6869__section {
      padding: 40px 15px;
      max-width: 1200px;
      margin: 0 auto;
      background-color: #fff;
      margin-bottom: 20px;
      border-radius: 8px;
      box-shadow: 0 2px 5px rgba(0, 0, 0, 0.05);
    }

    .page-ku6869__section-dark {
      background-color: #2c3e50;
      color: #ecf0f1;
    }

    .page-ku6869__container {
      max-width: 1200px;
      margin: 0 auto;
      padding: 0 15px;
    }

    .page-ku6869__heading-primary {
      font-size: 2.5em;
      color: #c0392b; /* Màu đỏ nổi bật */
      text-align: center;
      margin-bottom: 20px;
      font-weight: bold;
    }

    .page-ku6869__heading-secondary {
      font-size: 2em;
      color: #2c3e50;
      text-align: center;
      margin-bottom: 30px;
      font-weight: bold;
      border-bottom: 2px solid #e0e0e0;
      padding-bottom: 10px;
    }

    .page-ku6869__heading-tertiary {
      font-size: 1.5em;
      color: #34495e;
      margin-top: 25px;
      margin-bottom: 15px;
      font-weight: bold;
    }

    .page-ku6869__paragraph {
      margin-bottom: 15px;
      font-size: 1.05em;
      line-height: 1.7;
    }

    .page-ku6869__button {
      display: inline-block;
      background-color: #e74c3c; /* Màu đỏ */
      color: #fff;
      padding: 12px 25px;
      border-radius: 5px;
      text-decoration: none;
      font-weight: bold;
      transition: background-color 0.3s ease;
      border: none;
      cursor: pointer;
      font-size: 1.1em;
      text-align: center;
    }

    .page-ku6869__button:hover {
      background-color: #c0392b;
    }

    .page-ku6869__button-secondary {
      background-color: #3498db; /* Màu xanh */
    }

    .page-ku6869__button-secondary:hover {
      background-color: #2980b9;
    }

    /* Hero Section */
    .page-ku6869__hero-section {
      position: relative;
      text-align: center;
      color: #fff;
      padding-top: 10px; /* Cho desktop */
      padding-bottom: 60px;
      background: linear-gradient(135deg, #e74c3c, #c0392b);
      overflow: hidden;
      border-radius: 0 0 15px 15px;
      margin-bottom: 20px;
    }

    .page-ku6869__hero-background {
      position: absolute;
      top: 0;
      left: 0;
      width: 100%;
      height: 100%;
      object-fit: cover;
      z-index: 1;
      filter: brightness(0.7);
    }

    .page-ku6869__hero-content {
      position: relative;
      z-index: 2;
      padding: 20px;
      max-width: 900px;
      margin: 0 auto;
    }

    .page-ku6869__hero-title {
      font-size: 3em;
      margin-bottom: 15px;
      line-height: 1.2;
      color: #fff;
      text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
    }

    .page-ku6869__hero-description {
      font-size: 1.3em;
      margin-bottom: 30px;
      color: #eee;
      text-shadow: 1px 1px 3px rgba(0, 0, 0, 0.4);
    }

    /* Floating Login Button */
    .page-ku6869__floating-button {
      position: fixed;
      bottom: 0;
      left: 0;
      width: 100%;
      background-color: #e74c3c;
      color: #fff;
      text-align: center;
      padding: 15px 0;
      font-size: 1.2em;
      font-weight: bold;
      box-shadow: 0 -2px 10px rgba(0, 0, 0, 0.2);
      z-index: 1000;
      text-decoration: none;
      transition: background-color 0.3s ease;
      display: flex;
      justify-content: center;
      align-items: center;
    }

    .page-ku6869__floating-button:hover {
      background-color: #c0392b;
    }

    /* Game List */
    .page-ku6869__game-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
      gap: 20px;
      margin-top: 30px;
    }

    .page-ku6869__game-card {
      background-color: #fcfcfc;
      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;
    }

    .page-ku6869__game-card:hover {
      transform: translateY(-5px);
      box-shadow: 0 6px 15px rgba(0, 0, 0, 0.15);
    }

    .page-ku6869__game-image-wrapper {
      width: 100%;
      max-width: 100%;
      overflow: hidden;
      box-sizing: border-box;
      height: 200px; /* Cố định chiều cao cho ảnh */
    }

    .page-ku6869__game-image {
      width: 100%;
      height: 100%;
      object-fit: cover;
      display: block;
    }

    .page-ku6869__game-title {
      font-size: 1.3em;
      color: #2c3e50;
      margin: 15px 10px 10px;
      font-weight: bold;
    }

    .page-ku6869__game-description {
      font-size: 0.95em;
      color: #555;
      padding: 0 15px;
      margin-bottom: 15px;
    }

    /* Promotions */
    .page-ku6869__promo-item {
      display: flex;
      align-items: center;
      background-color: #ecf0f1;
      padding: 20px;
      border-radius: 8px;
      margin-bottom: 20px;
      box-shadow: 0 2px 5px rgba(0, 0, 0, 0.05);
    }

    .page-ku6869__promo-icon {
      flex-shrink: 0;
      width: 80px;
      height: 80px;
      margin-right: 20px;
    }

    .page-ku6869__promo-content h3 {
      color: #e74c3c;
      margin-top: 0;
      margin-bottom: 10px;
      font-size: 1.4em;
    }

    .page-ku6869__promo-content p {
      margin-bottom: 0;
      color: #444;
    }

    /* Download App Section */
    .page-ku6869__download-grid {
      display: flex;
      flex-wrap: wrap;
      justify-content: center;
      gap: 30px;
      margin-top: 30px;
    }

    .page-ku6869__download-item {
      text-align: center;
      flex: 1 1 300px;
      max-width: 350px;
      background-color: #fcfcfc;
      padding: 25px;
      border-radius: 10px;
      box-shadow: 0 4px 10px rgba(0, 0, 0, 0.08);
    }

    .page-ku6869__download-qr-code {
      width: 200px;
      height: 200px;
      margin: 0 auto 20px;
      display: block;
    }

    .page-ku6869__download-text {
      font-size: 1.1em;
      color: #34495e;
      margin-bottom: 15px;
      font-weight: bold;
    }

    /* FAQ Section */
    .page-ku6869__faq-list {
      margin-top: 30px;
    }

    .page-ku6869__faq-item {
      background-color: #fff;
      border: 1px solid #ddd;
      border-radius: 8px;
      margin-bottom: 15px;
      overflow: hidden;
      box-shadow: 0 2px 4px rgba(0, 0, 0, 0.03);
    }

    .page-ku6869__faq-question {
      display: flex;
      justify-content: space-between;
      align-items: center;
      padding: 15px 20px;
      background-color: #f0f0f0;
      cursor: pointer;
      user-select: none;
      transition: background-color 0.3s ease;
    }

    .page-ku6869__faq-question:hover {
      background-color: #e0e0e0;
    }

    .page-ku6869__faq-question h3 {
      margin: 0;
      font-size: 1.15em;
      color: #2c3e50;
      font-weight: bold;
      pointer-events: none; /* Ngăn chặn h3 chặn sự kiện click */
      flex-grow: 1;
    }

    .page-ku6869__faq-toggle {
      font-size: 1.8em;
      font-weight: bold;
      color: #e74c3c;
      line-height: 1;
      transition: transform 0.3s ease;
      pointer-events: none; /* Ngăn chặn span chặn sự kiện click */
    }

    .page-ku6869__faq-item.active .page-ku6869__faq-toggle {
      transform: rotate(45deg); /* Chuyển dấu '+' thành 'x' hoặc '-' */
    }

    .page-ku6869__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;
      font-size: 1em;
      line-height: 1.7;
    }

    .page-ku6869__faq-item.active .page-ku6869__faq-answer {
      max-height: 2000px !important; /* Đủ lớn để chứa mọi nội dung */
      padding: 20px !important;
      opacity: 1;
    }

    /* Responsive adjustments */
    @media (max-width: 768px) {
      .page-ku6869 {
        padding-bottom: 70px; /* Điều chỉnh cho nút nổi trên di động */
      }
      .page-ku6869__hero-section {
        padding-top: 10px; /* Đảm bảo không bị che bởi header trên di động */
        padding-bottom: 40px;
      }
      .page-ku6869__hero-title {
        font-size: 2em;
      }
      .page-ku6869__hero-description {
        font-size: 1.1em;
      }
      .page-ku6869__heading-primary {
        font-size: 2em;
      }
      .page-ku6869__heading-secondary {
        font-size: 1.6em;
      }
      .page-ku6869__heading-tertiary {
        font-size: 1.3em;
      }
      .page-ku6869__section {
        padding: 30px 10px;
      }
      .page-ku6869__game-grid {
        grid-template-columns: 1fr;
      }
      .page-ku6869__promo-item {
        flex-direction: column;
        text-align: center;
      }
      .page-ku6869__promo-icon {
        margin-right: 0;
        margin-bottom: 15px;
      }
      .page-ku6869__floating-button {
        padding: 12px 0;
        font-size: 1.1em;
      }
      .page-ku6869__game-image-wrapper img {
        max-width: 100% !important;
        height: auto !important;
      }
      .page-ku6869__download-item {
        flex: 1 1 100%;
        max-width: 100%;
      }
      .page-ku6869__faq-question {
        padding: 12px 15px;
      }
      .page-ku6869__faq-question h3 {
        font-size: 1em;
      }
      .page-ku6869__faq-toggle {
        font-size: 1.5em;
      }
      .page-ku6869__faq-answer {
        padding: 0 15px;
      }
      .page-ku6869__faq-item.active .page-ku6869__faq-answer {
        padding: 15px !important;
      }
    }

    /* Image responsive styles for all images within .page-ku6869 */
    .page-ku6869 img {
      max-width: 100%;
      height: auto;
      display: block; /* Remove extra space below images */
    }
    @media (max-width: 768px) {
      .page-ku6869 img {
        max-width: 100% !important;
        height: auto !important;
      }
      .page-ku6869 .page-ku6869__game-image-wrapper,
      .page-ku6869 .page-ku6869__download-item {
        width: 100%;
        max-width: 100%;
        overflow: hidden;
        box-sizing: border-box;
      }
    }