/* Reset và các thuộc tính cơ bản */
    .page-kufundownload {
      font-family: 'Arial', sans-serif;
      color: #333;
      line-height: 1.6;
      background-color: #f5f7fa;
      padding-bottom: 80px; /* Đảm bảo có khoảng trống cho footer */
    }

    .page-kufundownload__container {
      max-width: 1200px;
      margin: 0 auto;
      padding: 0 15px;
      box-sizing: border-box;
    }

    .page-kufundownload__section {
      padding: 40px 0;
      background-color: #fff;
      margin-bottom: 20px;
      border-radius: 8px;
      box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
    }

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

    .page-kufundownload__section-title {
      text-align: center;
      font-size: 2.5em;
      margin-bottom: 30px;
      color: #2980b9;
      position: relative;
      padding-bottom: 15px;
    }

    .page-kufundownload__section-title--dark {
      color: #f39c12;
    }

    .page-kufundownload__section-title::after {
      content: '';
      position: absolute;
      left: 50%;
      bottom: 0;
      transform: translateX(-50%);
      width: 80px;
      height: 4px;
      background-color: #f39c12;
      border-radius: 2px;
    }

    .page-kufundownload__section-title--dark::after {
      background-color: #2980b9;
    }

    /* Hero Section */
    .page-kufundownload__hero-section {
      position: relative;
      background-color: #34495e;
      color: #fff;
      text-align: center;
      padding: 10px 0 60px 0; /* padding-top 10px để tránh bị header cố định che khuất */
      overflow: hidden;
      display: flex;
      flex-direction: column;
      justify-content: center;
      align-items: center;
      min-height: 400px; /* Đảm bảo chiều cao tối thiểu */
    }

    .page-kufundownload__hero-background {
      position: absolute;
      top: 0;
      left: 0;
      width: 100%;
      height: 100%;
      object-fit: cover;
      opacity: 0.6;
      z-index: 1;
    }

    .page-kufundownload__hero-content {
      position: relative;
      z-index: 2;
      max-width: 800px;
      padding: 20px;
    }

    .page-kufundownload__hero-title {
      font-size: 3.5em;
      margin-bottom: 20px;
      line-height: 1.2;
      color: #f39c12;
      text-shadow: 2px 2px 4px rgba(0,0,0,0.5);
    }

    .page-kufundownload__hero-description {
      font-size: 1.3em;
      margin-bottom: 30px;
      color: #ecf0f1;
      text-shadow: 1px 1px 2px rgba(0,0,0,0.4);
    }

    .page-kufundownload__cta-button {
      display: inline-block;
      background-color: #e74c3c;
      color: #fff;
      padding: 15px 30px;
      border-radius: 50px;
      font-size: 1.2em;
      font-weight: bold;
      text-decoration: none;
      transition: background-color 0.3s ease, transform 0.3s ease;
      border: none;
      cursor: pointer;
      box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
    }

    .page-kufundownload__cta-button:hover {
      background-color: #c0392b;
      transform: translateY(-3px);
    }

    /* Nút khuyến mãi nổi */
    .page-kufundownload__floating-button {
      position: fixed;
      bottom: 20px;
      right: 20px;
      background-color: #27ae60;
      color: #fff;
      padding: 15px 25px;
      border-radius: 50px;
      font-size: 1.1em;
      font-weight: bold;
      text-decoration: none;
      box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
      z-index: 1000;
      animation: page-kufundownload__pulse 2s infinite;
      border: none;
      cursor: pointer;
      text-align: center;
      display: flex;
      align-items: center;
      justify-content: center;
      line-height: 1.2;
    }

    .page-kufundownload__floating-button:hover {
      background-color: #229a54;
      animation: none;
    }

    @keyframes page-kufundownload__pulse {
      0% { transform: scale(1); }
      50% { transform: scale(1.05); }
      100% { transform: scale(1); }
    }

    /* Giới thiệu Kufun */
    .page-kufundownload__intro-content {
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      gap: 30px;
    }

    .page-kufundownload__intro-text {
      flex: 2;
      min-width: 300px;
    }

    .page-kufundownload__intro-image {
      flex: 1;
      min-width: 250px;
      text-align: center;
    }

    .page-kufundownload__intro-image img {
      max-width: 100%;
      height: auto;
      border-radius: 8px;
      box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    }

    /* Hướng dẫn tải và đăng ký */
    .page-kufundownload__steps-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
      gap: 25px;
    }

    .page-kufundownload__step-card {
      background-color: #f9f9f9;
      padding: 25px;
      border-radius: 8px;
      box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
      text-align: center;
      transition: transform 0.3s ease;
      border-left: 5px solid #3498db;
    }

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

    .page-kufundownload__step-card-number {
      font-size: 2.5em;
      color: #3498db;
      margin-bottom: 10px;
      font-weight: bold;
    }

    .page-kufundownload__step-card-title {
      font-size: 1.5em;
      color: #2c3e50;
      margin-bottom: 15px;
    }

    .page-kufundownload__step-card-description {
      font-size: 1em;
      color: #555;
    }

    /* Trò chơi nổi bật */
    .page-kufundownload__games-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
      gap: 25px;
    }

    .page-kufundownload__game-card {
      background-color: #f9f9f9;
      border-radius: 8px;
      overflow: hidden;
      box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
      transition: transform 0.3s ease;
      display: flex;
      flex-direction: column;
      min-height: 350px; /* Đảm bảo chiều cao tối thiểu cho card game */
    }

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

    .page-kufundownload__game-card-image-wrapper {
      width: 100%;
      height: 200px;
      overflow: hidden;
    }

    .page-kufundownload__game-card-image {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform 0.3s ease;
    }

    .page-kufundownload__game-card:hover .page-kufundownload__game-card-image {
      transform: scale(1.05);
    }

    .page-kufundownload__game-card-content {
      padding: 15px;
      flex-grow: 1;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .page-kufundownload__game-card-title {
      font-size: 1.4em;
      color: #2980b9;
      margin-bottom: 10px;
      font-weight: bold;
    }

    .page-kufundownload__game-card-description {
      font-size: 0.95em;
      color: #555;
      flex-grow: 1;
    }

    /* Khuyến mãi */
    .page-kufundownload__promo-list {
      display: flex;
      flex-wrap: wrap;
      gap: 20px;
      justify-content: center;
    }

    .page-kufundownload__promo-item {
      background-color: #e8f6f3;
      border: 1px solid #1abc9c;
      padding: 20px;
      border-radius: 8px;
      width: calc(50% - 10px);
      box-sizing: border-box;
      display: flex;
      align-items: center;
      gap: 15px;
      transition: background-color 0.3s ease;
    }

    .page-kufundownload__promo-item:hover {
      background-color: #d4ede6;
    }

    .page-kufundownload__promo-icon {
      font-size: 2.5em;
      color: #1abc9c;
    }

    .page-kufundownload__promo-details h3 {
      margin-top: 0;
      font-size: 1.3em;
      color: #2c3e50;
    }

    .page-kufundownload__promo-details p {
      margin-bottom: 0;
      color: #555;
    }

    /* FAQ Section */
    .page-kufundownload__faq-section {
      background-color: #fff;
      padding: 40px 0;
      margin-bottom: 20px;
      border-radius: 8px;
      box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
    }

    .page-kufundownload__faq-item {
      border: 1px solid #eee;
      border-radius: 8px;
      margin-bottom: 15px;
      overflow: hidden;
      background-color: #fcfcfc;
    }

    .page-kufundownload__faq-question {
      display: flex;
      justify-content: space-between;
      align-items: center;
      padding: 15px 20px;
      background-color: #3498db;
      color: #fff;
      cursor: pointer;
      user-select: none;
      font-size: 1.1em;
      font-weight: bold;
      transition: background-color 0.3s ease;
    }

    .page-kufundownload__faq-question:hover {
      background-color: #2980b9;
    }

    .page-kufundownload__faq-question h3 {
      margin: 0;
      flex-grow: 1;
      pointer-events: none; /* Ngăn h3 chặn sự kiện click trên phần tử cha */
    }

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

    .page-kufundownload__faq-item.active .page-kufundownload__faq-toggle {
      transform: rotate(45deg); /* Biểu tượng '+' xoay thành 'x' */
    }

    .page-kufundownload__faq-answer {
      max-height: 0;
      overflow: hidden;
      padding: 0 15px; /* Padding ban đầu */
      opacity: 0;
      transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1), padding 0.4s ease, opacity 0.4s ease;
      background-color: #fff;
      color: #333;
    }

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

    /* Lời kêu gọi hành động cuối cùng */
    .page-kufundownload__final-cta {
      text-align: center;
      padding: 40px 20px;
      background-color: #2c3e50;
      color: #fff;
      border-radius: 8px;
      box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
      margin-top: 20px;
    }

    .page-kufundownload__final-cta h2 {
      font-size: 2.2em;
      margin-bottom: 20px;
      color: #f39c12;
    }

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

    /* Điều chỉnh responsive */
    @media (max-width: 992px) {
      .page-kufundownload__hero-title {
        font-size: 3em;
      }
      .page-kufundownload__hero-description {
        font-size: 1.1em;
      }
      .page-kufundownload__section-title {
        font-size: 2em;
      }
      .page-kufundownload__promo-item {
        width: 100%;
      }
    }

    @media (max-width: 768px) {
      .page-kufundownload__hero-section {
        padding-top: 10px; /* Đảm bảo nội dung nằm dưới header cố định */
        min-height: 300px;
      }
      .page-kufundownload__hero-title {
        font-size: 2.5em;
      }
      .page-kufundownload__hero-description {
        font-size: 1em;
      }
      .page-kufundownload__cta-button {
        padding: 12px 25px;
        font-size: 1.1em;
      }

      .page-kufundownload__floating-button {
        bottom: 15px;
        right: 15px;
        padding: 12px 20px;
        font-size: 1em;
        width: 120px; /* Điều chỉnh chiều rộng cho di động */
        height: auto;
      }

      .page-kufundownload__intro-content {
        flex-direction: column;
      }

      .page-kufundownload__steps-grid,
      .page-kufundownload__games-grid {
        grid-template-columns: 1fr;
      }

      /* Yêu cầu responsive cho các mục danh sách */
      .page-kufundownload__promo-item {
        width: 100% !important;
        box-sizing: border-box !important;
        padding: 15px !important;
        margin-left: 0 !important;
        margin-right: 0 !important;
        word-wrap: break-word !important;
        overflow-wrap: break-word !important;
      }

      .page-kufundownload__promo-list {
        padding: 0 !important;
        margin-left: 0 !important;
        margin-right: 0 !important;
        width: 100% !important;
        max-width: 100% !important;
        box-sizing: border-box !important;
      }

      .page-kufundownload__game-card {
        min-height: auto; /* Cho phép chiều cao tự điều chỉnh */
      }

      /* Đảm bảo tất cả hình ảnh responsive */
      .page-kufundownload img {
        max-width: 100% !important;
        height: auto !important;
        box-sizing: border-box !important;
      }
      .page-kufundownload__intro-image img {
        max-width: 100% !important;
        height: auto !important;
        box-sizing: border-box !important;
      }
      .page-kufundownload__game-card-image {
        max-width: 100% !important;
        height: auto !important;
        box-sizing: border-box !important;
      }
      .page-kufundownload__game-card-image-wrapper {
        width: 100% !important;
        max-width: 100% !important;
        overflow: hidden !important;
        box-sizing: border-box !important;
      }
    }

    @media (max-width: 480px) {
      .page-kufundownload__hero-title {
        font-size: 2em;
      }
      .page-kufundownload__section-title {
        font-size: 1.8em;
      }
      .page-kufundownload__floating-button {
        font-size: 0.9em;
        padding: 10px 15px;
        width: 100px;
      }
    }