/* Tổng thể */
    .page-78winapp {
      font-family: 'Arial', sans-serif;
      color: #333;
      line-height: 1.6;
      background-color: #f8f9fa;
      padding-bottom: 80px; /* Để chừa chỗ cho nút nổi */
    }

    .page-78winapp__container {
      max-width: 1200px;
      margin: 0 auto;
      padding: 0 15px;
    }

    .page-78winapp__section {
      padding: 40px 0;
      text-align: center;
    }

    .page-78winapp__section--light {
      background-color: #fff;
    }

    .page-78winapp__section--dark {
      background-color: #e9ecef;
    }

    .page-78winapp__heading {
      color: #007bff;
      margin-bottom: 20px;
      font-size: 2.5em;
      font-weight: bold;
    }

    .page-78winapp__subheading {
      color: #0056b3;
      margin-bottom: 15px;
      font-size: 1.8em;
    }

    .page-78winapp__text {
      font-size: 1.1em;
      margin-bottom: 20px;
    }

    /* Hero Section */
    .page-78winapp__hero-section {
      background: linear-gradient(135deg, #007bff, #0056b3);
      color: #fff;
      padding: 10px 0 60px 0; /* padding-top 10px để tránh header cố định */
      text-align: center;
      position: relative;
      overflow: hidden;
    }

    .page-78winapp__hero-banner {
      width: 100%;
      height: auto;
      max-height: 400px;
      object-fit: cover;
      display: block;
      margin: 0 auto 20px auto;
      border-radius: 8px;
      box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
    }
    
    .page-78winapp__hero-content {
      position: relative;
      z-index: 1;
      padding: 0 15px;
    }

    .page-78winapp__hero-title {
      font-size: 3em;
      margin-bottom: 15px;
      line-height: 1.2;
      color: #fff;
    }

    .page-78winapp__hero-description {
      font-size: 1.3em;
      margin-bottom: 30px;
      max-width: 800px;
      margin-left: auto;
      margin-right: auto;
    }

    .page-78winapp__cta-button {
      display: inline-block;
      background-color: #ffc107;
      color: #333;
      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 10px rgba(0, 0, 0, 0.2);
    }

    .page-78winapp__cta-button:hover {
      background-color: #e0a800;
      transform: translateY(-3px);
    }

    /* Nút nổi (Floating Button) */
    .page-78winapp__sticky-button {
      position: fixed;
      bottom: 20px;
      left: 50%;
      transform: translateX(-50%);
      z-index: 1000;
      width: 90%;
      max-width: 350px;
      background-color: #dc3545; /* Đỏ rực rỡ */
      color: #fff;
      padding: 12px 20px;
      border-radius: 30px;
      text-align: center;
      box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
      font-size: 1.1em;
      font-weight: bold;
      text-decoration: none;
      transition: background-color 0.3s ease, transform 0.3s ease;
      animation: page-78winapp__pulse 2s infinite;
    }

    .page-78winapp__sticky-button:hover {
      background-color: #c82333;
      transform: translateX(-50%) translateY(-3px);
    }

    @keyframes page-78winapp__pulse {
      0% {
        transform: translateX(-50%) scale(1);
      }
      50% {
        transform: translateX(-50%) scale(1.03);
      }
      100% {
        transform: translateX(-50%) scale(1);
      }
    }

    /* Giới thiệu ứng dụng */
    .page-78winapp__intro-section {
      text-align: left;
    }

    .page-78winapp__intro-image {
      width: 100%;
      height: auto;
      max-width: 600px;
      display: block;
      margin: 20px auto;
      border-radius: 8px;
      box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
    }

    /* Lợi ích tải app */
    .page-78winapp__features-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
      gap: 30px;
      margin-top: 30px;
    }

    .page-78winapp__feature-item {
      background-color: #f1f8ff;
      padding: 25px;
      border-radius: 10px;
      box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
      text-align: left;
      transition: transform 0.3s ease;
      box-sizing: border-box; /* Quan trọng cho responsive */
    }

    .page-78winapp__feature-item:hover {
      transform: translateY(-5px);
    }

    .page-78winapp__feature-icon {
      width: 80px; /* Kích thước tối thiểu 200x200px */
      height: 80px; /* Kích thước tối thiểu 200x200px */
      object-fit: contain;
      margin-bottom: 15px;
      display: block;
      margin-left: 0;
    }

    .page-78winapp__feature-title {
      font-size: 1.4em;
      color: #007bff;
      margin-bottom: 10px;
    }

    /* Trưng bày trò chơi */
    .page-78winapp__game-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
      gap: 25px;
      margin-top: 30px;
    }

    .page-78winapp__game-card {
      background-color: #fff;
      border-radius: 10px;
      overflow: hidden;
      box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
      transition: transform 0.3s ease;
      text-align: center;
      box-sizing: border-box; /* Quan trọng cho responsive */
    }

    .page-78winapp__game-card:hover {
      transform: translateY(-5px);
    }

    .page-78winapp__game-image {
      width: 100%;
      height: 180px;
      object-fit: cover;
      display: block;
    }

    .page-78winapp__game-info {
      padding: 20px;
    }

    .page-78winapp__game-title {
      font-size: 1.3em;
      color: #333;
      margin-bottom: 10px;
    }

    .page-78winapp__game-description {
      font-size: 0.95em;
      color: #555;
    }

    /* Hướng dẫn tải app */
    .page-78winapp__download-steps {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 30px;
      margin-top: 30px;
      text-align: left;
    }

    .page-78winapp__download-platform {
      background-color: #fff;
      padding: 30px;
      border-radius: 10px;
      box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
      box-sizing: border-box; /* Quan trọng cho responsive */
    }

    .page-78winapp__platform-title {
      font-size: 1.6em;
      color: #007bff;
      margin-bottom: 20px;
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 10px;
    }

    .page-78winapp__platform-icon {
      width: 60px; /* Kích thước tối thiểu 200x200px */
      height: 60px; /* Kích thước tối thiểu 200x200px */
      object-fit: contain;
    }

    .page-78winapp__qr-code {
      width: 200px; /* Kích thước tối thiểu 200x200px */
      height: 200px; /* Kích thước tối thiểu 200x200px */
      object-fit: contain;
      display: block;
      margin: 20px auto;
      border: 1px solid #ddd;
      border-radius: 5px;
    }

    .page-78winapp__step-list {
      list-style: none;
      padding: 0;
      margin: 0;
    }

    .page-78winapp__step-item {
      display: flex;
      align-items: flex-start;
      margin-bottom: 15px;
    }

    .page-78winapp__step-number {
      background-color: #007bff;
      color: #fff;
      border-radius: 50%;
      width: 30px;
      height: 30px;
      display: flex;
      justify-content: center;
      align-items: center;
      font-weight: bold;
      flex-shrink: 0;
      margin-right: 10px;
    }

    .page-78winapp__step-text {
      flex-grow: 1;
      font-size: 1em;
    }

    /* FAQ Section */
    .page-78winapp__faq-section {
      text-align: left;
    }

    .page-78winapp__faq-item {
      background-color: #fff;
      margin-bottom: 10px;
      border-radius: 8px;
      box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
      overflow: hidden;
    }

    .page-78winapp__faq-question {
      display: flex;
      justify-content: space-between;
      align-items: center;
      padding: 15px 20px;
      background-color: #f1f1f1;
      color: #333;
      cursor: pointer;
      font-weight: bold;
      transition: background-color 0.3s ease;
      user-select: none;
    }

    .page-78winapp__faq-question:hover {
      background-color: #e0e0e0;
    }

    .page-78winapp__faq-question h3 {
      margin: 0;
      font-size: 1.1em;
      color: #333;
      pointer-events: none; /* Ngăn chặn sự kiện click trên h3 */
    }

    .page-78winapp__faq-toggle {
      font-size: 1.5em;
      line-height: 1;
      pointer-events: none; /* Ngăn chặn sự kiện click trên toggle */
      transition: transform 0.3s ease;
    }

    .page-78winapp__faq-item.active .page-78winapp__faq-toggle {
      transform: rotate(45deg); /* Chuyển '+' thành 'x' hoặc '-' */
    }

    .page-78winapp__faq-answer {
      max-height: 0;
      overflow: hidden;
      padding: 0 20px;
      transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1), padding 0.4s ease, opacity 0.4s ease;
      opacity: 0;
      color: #555;
      font-size: 1em;
      line-height: 1.8;
    }

    .page-78winapp__faq-item.active .page-78winapp__faq-answer {
      max-height: 2000px !important; /* Đủ lớn để chứa mọi nội dung */
      padding: 20px !important;
      opacity: 1;
    }

    /* CTA cuối trang */
    .page-78winapp__cta-bottom {
      background-color: #28a745;
      color: #fff;
      padding: 50px 0;
      text-align: center;
    }

    .page-78winapp__cta-bottom-title {
      font-size: 2.2em;
      margin-bottom: 20px;
    }

    .page-78winapp__cta-bottom-text {
      font-size: 1.2em;
      margin-bottom: 30px;
      max-width: 800px;
      margin-left: auto;
      margin-right: auto;
    }

    /* Responsive */
    @media (max-width: 992px) {
      .page-78winapp__hero-title {
        font-size: 2.5em;
      }
      .page-78winapp__hero-description {
        font-size: 1.1em;
      }
      .page-78winapp__heading {
        font-size: 2em;
      }
      .page-78winapp__subheading {
        font-size: 1.5em;
      }
      .page-78winapp__download-steps {
        grid-template-columns: 1fr;
      }
    }

    @media (max-width: 768px) {
      .page-78winapp__hero-section {
        padding-top: 10px; /* Đảm bảo hero không bị che bởi header cố định trên mobile */
        padding-bottom: 40px;
      }
      .page-78winapp__hero-title {
        font-size: 2em;
      }
      .page-78winapp__hero-description {
        font-size: 1em;
      }
      .page-78winapp__cta-button {
        padding: 12px 25px;
        font-size: 1.1em;
      }
      .page-78winapp__heading {
        font-size: 1.8em;
      }
      .page-78winapp__subheading {
        font-size: 1.3em;
      }
      .page-78winapp__text {
        font-size: 1em;
      }
      .page-78winapp__features-grid,
      .page-78winapp__game-grid {
        grid-template-columns: 1fr;
      }

      /* Responsive cho các item trong danh sách */
      .page-78winapp__feature-item,
      .page-78winapp__game-card,
      .page-78winapp__download-platform {
        width: 100% !important;
        max-width: 100% !important;
        box-sizing: border-box !important;
        margin-left: 0 !important;
        margin-right: 0 !important;
        padding: 20px !important;
      }

      .page-78winapp__game-image {
        height: 150px;
      }

      .page-78winapp__step-list,
      .page-78winapp__faq-item {
        width: 100% !important;
        max-width: 100% !important;
        box-sizing: border-box !important;
        padding: 0 !important;
        margin-left: 0 !important;
        margin-right: 0 !important;
      }
      .page-78winapp__step-text,
      .page-78winapp__faq-answer {
        word-wrap: break-word !important;
        overflow-wrap: break-word !important;
        word-break: break-word !important;
      }
      .page-78winapp__faq-question {
        padding: 15px !important;
      }
      .page-78winapp__faq-question h3 {
        font-size: 1em;
      }
      .page-78winapp__faq-answer {
        padding: 15px !important;
      }
      .page-78winapp__cta-bottom-title {
        font-size: 1.8em;
      }
      .page-78winapp__cta-bottom-text {
        font-size: 1em;
      }
      .page-78winapp__sticky-button {
        width: calc(100% - 30px); /* 15px padding each side */
        font-size: 1em;
        padding: 10px 15px;
      }
    }

    @media (max-width: 480px) {
      .page-78winapp__hero-title {
        font-size: 1.8em;
      }
      .page-78winapp__cta-button {
        font-size: 1em;
        padding: 10px 20px;
      }
      .page-78winapp__heading {
        font-size: 1.6em;
      }
      .page-78winapp__subheading {
        font-size: 1.2em;
      }
      .page-78winapp__feature-item {
        padding: 15px;
      }
      .page-78winapp__game-info {
        padding: 15px;
      }
      .page-78winapp__qr-code {
        width: 150px;
        height: 150px;
      }
    }