/* Tổng thể */
    .page-9vnd {
      font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
      color: #333;
      line-height: 1.6;
      background-color: #f9f9f9;
      padding: 0;
      margin: 0;
    }

    /* Các phần chung */
    .page-9vnd__section {
      padding: 40px 20px;
      max-width: 1200px;
      margin: 0 auto;
      box-sizing: border-box;
    }

    .page-9vnd__section--dark {
      background-color: #2c3e50;
      color: #ecf0f1;
    }

    .page-9vnd__title {
      text-align: center;
      color: #2c3e50;
      margin-bottom: 30px;
      font-size: 2.5em;
      font-weight: 700;
    }

    .page-9vnd__title--light {
      color: #ecf0f1;
    }

    .page-9vnd__subtitle {
      text-align: center;
      color: #555;
      margin-bottom: 40px;
      font-size: 1.2em;
    }

    .page-9vnd__text {
      font-size: 1em;
      margin-bottom: 20px;
      text-align: justify;
    }

    .page-9vnd__button {
      display: inline-block;
      background-color: #e74c3c;
      color: #fff;
      padding: 12px 25px;
      border-radius: 5px;
      text-decoration: none;
      font-weight: bold;
      transition: background-color 0.3s ease;
      text-align: center;
      white-space: nowrap;
      border: none;
      cursor: pointer;
    }

    .page-9vnd__button:hover {
      background-color: #c0392b;
    }

    /* Hero Section */
    .page-9vnd__hero-section {
      background: linear-gradient(rgba(0, 0, 0, 0.6), rgba(0, 0, 0, 0.6)), url('[GALLERY:banner:9vnd,hero,landing]') no-repeat center center;
      background-size: cover;
      color: #fff;
      text-align: center;
      padding: 100px 20px 80px; /* Thêm padding-top để tránh bị che bởi header cố định */
      position: relative;
      overflow: hidden;
      display: flex;
      flex-direction: column;
      justify-content: center;
      align-items: center;
      min-height: 450px;
      box-sizing: border-box;
    }
    @media (max-width: 768px) {
      .page-9vnd__hero-section {
        padding-top: 80px; /* Điều chỉnh padding-top cho di động */
        min-height: 350px;
      }
    }

    .page-9vnd__hero-content {
      max-width: 800px;
      margin: 0 auto;
      z-index: 1;
    }

    .page-9vnd__hero-title {
      font-size: 3.5em;
      margin-bottom: 15px;
      line-height: 1.2;
      font-weight: 800;
      color: #f1c40f;
    }

    .page-9vnd__hero-description {
      font-size: 1.4em;
      margin-bottom: 30px;
      font-weight: 300;
    }

    .page-9vnd__hero-cta {
      font-size: 1.3em;
      padding: 15px 35px;
      background-color: #2ecc71;
      border-radius: 50px;
      box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
    }

    .page-9vnd__hero-cta:hover {
      background-color: #27ae60;
    }

    /* Floating Login Button */
    .page-9vnd__floating-button {
      position: fixed;
      bottom: 20px;
      right: 20px;
      background-color: #e74c3c;
      color: #fff;
      padding: 15px 25px;
      border-radius: 50px;
      box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
      font-weight: bold;
      font-size: 1.1em;
      z-index: 1000;
      text-decoration: none;
      text-align: center;
      transition: background-color 0.3s ease;
      animation: page-9vnd__pulse 2s infinite;
      display: none; /* Mặc định ẩn trên desktop */
    }

    .page-9vnd__floating-button:hover {
      background-color: #c0392b;
    }

    @media (max-width: 768px) {
      .page-9vnd__floating-button {
        display: block; /* Hiện trên mobile */
        left: 50%;
        transform: translateX(-50%);
        width: calc(100% - 40px);
        max-width: 300px;
        bottom: 15px;
        padding: 12px 20px;
        font-size: 1em;
      }
    }

    @keyframes page-9vnd__pulse {
      0% { transform: scale(1); }
      50% { transform: scale(1.05); }
      100% { transform: scale(1); }
    }

    /* Why Choose Us Section */
    .page-9vnd__features-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
      gap: 30px;
      margin-top: 30px;
    }

    .page-9vnd__feature-item {
      background-color: #fff;
      padding: 30px;
      border-radius: 10px;
      box-shadow: 0 5px 15px rgba(0, 0, 0, 0.08);
      text-align: center;
      transition: transform 0.3s ease, box-shadow 0.3s ease;
      display: flex;
      flex-direction: column;
      align-items: center;
      box-sizing: border-box;
    }

    .page-9vnd__feature-item:hover {
      transform: translateY(-5px);
      box-shadow: 0 8px 20px rgba(0, 0, 0, 0.12);
    }

    .page-9vnd__feature-icon {
      width: 80px; /* Kích thước tối thiểu 200x200px được đảm bảo bởi placeholder */
      height: 80px;
      margin-bottom: 20px;
      object-fit: contain;
      max-width: 100%;
      height: auto;
    }

    .page-9vnd__feature-title {
      font-size: 1.5em;
      color: #e74c3c;
      margin-bottom: 15px;
    }

    .page-9vnd__feature-description {
      font-size: 0.95em;
      color: #666;
      text-align: center;
    }

    /* Game Categories Section */
    .page-9vnd__game-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
      gap: 30px;
      margin-top: 30px;
    }

    .page-9vnd__game-card {
      background-color: #fff;
      border-radius: 10px;
      box-shadow: 0 5px 15px rgba(0, 0, 0, 0.08);
      overflow: hidden;
      transition: transform 0.3s ease, box-shadow 0.3s ease;
      display: flex;
      flex-direction: column;
      box-sizing: border-box;
    }

    .page-9vnd__game-card:hover {
      transform: translateY(-5px);
      box-shadow: 0 8px 20px rgba(0, 0, 0, 0.12);
    }

    .page-9vnd__game-image {
      width: 100%;
      height: 200px;
      object-fit: cover;
      border-bottom: 1px solid #eee;
      max-width: 100%;
      height: auto; /* Đảm bảo hình ảnh responsive */
    }

    .page-9vnd__game-content {
      padding: 20px;
      flex-grow: 1;
      display: flex;
      flex-direction: column;
    }

    .page-9vnd__game-title {
      font-size: 1.4em;
      color: #2c3e50;
      margin-bottom: 10px;
    }

    .page-9vnd__game-description {
      font-size: 0.9em;
      color: #666;
      margin-bottom: 15px;
      flex-grow: 1;
      text-align: justify;
    }

    /* Promotion Section */
    .page-9vnd__promotion-card {
      background-color: #fff;
      border-radius: 10px;
      box-shadow: 0 5px 15px rgba(0, 0, 0, 0.08);
      padding: 30px;
      text-align: center;
      margin-top: 30px;
      box-sizing: border-box;
    }

    .page-9vnd__promotion-title {
      font-size: 2em;
      color: #e74c3c;
      margin-bottom: 15px;
    }

    .page-9vnd__promotion-text {
      font-size: 1.1em;
      color: #555;
      margin-bottom: 25px;
    }

    /* FAQ Section */
    .page-9vnd__faq-container {
      margin-top: 30px;
      max-width: 800px;
      margin-left: auto;
      margin-right: auto;
    }

    .page-9vnd__faq-item {
      background-color: #fff;
      margin-bottom: 15px;
      border-radius: 8px;
      box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
      overflow: hidden;
      box-sizing: border-box;
    }

    .page-9vnd__faq-question {
      display: flex;
      justify-content: space-between;
      align-items: center;
      padding: 15px 20px;
      cursor: pointer;
      background-color: #f5f5f5;
      border-bottom: 1px solid #eee;
      transition: background-color 0.3s ease;
      user-select: none;
    }

    .page-9vnd__faq-question:hover {
      background-color: #ececec;
    }

    .page-9vnd__faq-question h3 {
      margin: 0;
      font-size: 1.1em;
      color: #2c3e50;
      pointer-events: none; /* Ngăn chặn sự kiện click trên h3 */
    }

    .page-9vnd__faq-toggle {
      font-size: 1.5em;
      font-weight: bold;
      color: #e74c3c;
      transition: transform 0.3s ease;
      pointer-events: none; /* Ngăn chặn sự kiện click trên toggle */
    }

    .page-9vnd__faq-item.active .page-9vnd__faq-toggle {
      transform: rotate(45deg); /* Chuyển dấu '+' thành 'x' hoặc '-' */
    }

    .page-9vnd__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: 0.95em;
      text-align: justify;
    }

    .page-9vnd__faq-item.active .page-9vnd__faq-answer {
      max-height: 2000px !important; /* Đủ lớn để chứa mọi nội dung */
      padding: 20px 20px !important;
      opacity: 1;
    }

    /* Footer CTA */
    .page-9vnd__footer-cta {
      text-align: center;
      background-color: #34495e;
      color: #fff;
      padding: 50px 20px;
      box-sizing: border-box;
    }

    .page-9vnd__footer-cta-title {
      font-size: 2.2em;
      margin-bottom: 20px;
      color: #f1c40f;
    }

    .page-9vnd__footer-cta-description {
      font-size: 1.1em;
      margin-bottom: 30px;
    }

    /* Responsive adjustments */
    @media (max-width: 768px) {
      .page-9vnd__section {
        padding: 30px 15px;
      }

      .page-9vnd__title {
        font-size: 2em;
        margin-bottom: 20px;
      }

      .page-9vnd__subtitle {
        font-size: 1em;
        margin-bottom: 30px;
      }

      .page-9vnd__hero-title {
        font-size: 2.5em;
      }

      .page-9vnd__hero-description {
        font-size: 1.1em;
      }

      .page-9vnd__hero-cta {
        padding: 12px 25px;
        font-size: 1.1em;
      }

      .page-9vnd__features-grid,
      .page-9vnd__game-grid {
        grid-template-columns: 1fr;
        gap: 20px;
      }

      .page-9vnd__feature-item,
      .page-9vnd__game-card,
      .page-9vnd__promotion-card,
      .page-9vnd__faq-item {
        margin-left: 0 !important;
        margin-right: 0 !important;
        width: 100% !important;
        max-width: 100% !important;
        box-sizing: border-box !important;
        padding: 20px 15px; /* Điều chỉnh padding cho mobile */
      }

      .page-9vnd__game-image {
        height: 180px;
      }

      .page-9vnd__promotion-title {
        font-size: 1.6em;
      }

      .page-9vnd__promotion-text {
        font-size: 1em;
      }

      .page-9vnd__faq-question {
        padding: 12px 15px;
      }

      .page-9vnd__faq-question h3 {
        font-size: 1em;
      }

      .page-9vnd__faq-answer {
        padding: 15px 15px !important;
        word-wrap: break-word !important;
        overflow-wrap: break-word !important;
        word-break: break-word !important;
      }

      .page-9vnd__footer-cta-title {
        font-size: 1.8em;
      }

      .page-9vnd__footer-cta-description {
        font-size: 1em;
      }
    }

    /* Đảm bảo tất cả hình ảnh responsive */
    .page-9vnd img {
      max-width: 100% !important;
      height: auto !important;
      box-sizing: border-box !important;
    }
    .page-9vnd__image-container {
      width: 100%;
      max-width: 100%;
      overflow: hidden;
      box-sizing: border-box;
    }