/* CSS cho trang Tx68 */
    .page-tx68 {
      font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif;
      color: #333;
      line-height: 1.6;
      background-color: #f8f8f8;
    }

    .page-tx68__container {
      max-width: 1200px;
      margin: 0 auto;
      padding: 20px;
      box-sizing: border-box;
    }

    .page-tx68__hero-section {
      position: relative;
      background: linear-gradient(135deg, #0f4c75, #3282b8); /* Gradient for a modern look */
      color: #fff;
      padding-top: 10px; /* Spacing for fixed header */
      text-align: center;
      overflow: hidden;
      margin-bottom: 40px;
    }

    .page-tx68__hero-banner {
      width: 100%;
      height: auto;
      max-height: 500px; /* Limit banner height */
      object-fit: cover;
      display: block;
      margin-bottom: 20px;
    }

    .page-tx68__hero-content {
      position: relative;
      z-index: 2;
      padding: 40px 20px;
      max-width: 800px;
      margin: 0 auto;
    }

    .page-tx68__hero-title {
      font-size: 2.8em;
      margin-bottom: 15px;
      font-weight: bold;
      line-height: 1.2;
      color: #fff;
      text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
    }

    .page-tx68__hero-subtitle {
      font-size: 1.3em;
      margin-bottom: 30px;
      color: #e0e0e0;
    }

    .page-tx68__cta-button {
      display: inline-block;
      background-color: #ffcc00; /* Bright yellow for CTA */
      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 0.2s ease;
      box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
      border: none; /* Use button tag, so remove border */
      cursor: pointer;
    }

    .page-tx68__cta-button:hover {
      background-color: #e6b800;
      transform: translateY(-2px);
    }

    .page-tx68__floating-login {
      position: fixed;
      bottom: 20px;
      right: 20px;
      background-color: #dc3545; /* Red for urgency */
      color: #fff;
      padding: 12px 25px;
      border-radius: 30px;
      font-size: 1.1em;
      font-weight: bold;
      box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
      z-index: 1000;
      cursor: pointer;
      animation: page-tx68__pulse 2s infinite;
      text-align: center;
      text-decoration: none; /* Ensure it looks like a button */
      display: flex;
      align-items: center;
      justify-content: center;
    }

    .page-tx68__floating-login:hover {
      background-color: #c82333;
    }

    @keyframes page-tx68__pulse {
      0% { transform: scale(1); }
      50% { transform: scale(1.05); }
      100% { transform: scale(1); }
    }

    .page-tx68__section {
      background-color: #fff;
      padding: 40px 20px;
      margin-bottom: 30px;
      border-radius: 8px;
      box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
    }

    .page-tx68__section-title {
      font-size: 2em;
      color: #0f4c75;
      margin-bottom: 25px;
      text-align: center;
      position: relative;
      padding-bottom: 10px;
    }

    .page-tx68__section-title::after {
      content: '';
      position: absolute;
      left: 50%;
      bottom: 0;
      transform: translateX(-50%);
      width: 60px;
      height: 4px;
      background-color: #ffcc00;
      border-radius: 2px;
    }

    .page-tx68__text-content p {
      margin-bottom: 15px;
      font-size: 1.1em;
      color: #555;
    }
    .page-tx68__text-content strong {
      color: #0f4c75;
    }

    .page-tx68__feature-list {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
      gap: 25px;
      list-style: none;
      padding: 0;
      margin: 0;
    }

    .page-tx68__feature-item {
      background-color: #f0f8ff;
      border-radius: 8px;
      padding: 25px;
      text-align: center;
      box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
      transition: transform 0.3s ease, box-shadow 0.3s ease;
      box-sizing: border-box; /* Crucial for responsiveness */
    }

    .page-tx68__feature-item:hover {
      transform: translateY(-5px);
      box-shadow: 0 6px 15px rgba(0, 0, 0, 0.1);
    }

    .page-tx68__feature-icon {
      width: 200px; /* Adjusted to meet minimum size */
      height: 150px;
      object-fit: contain;
      margin: 0 auto 15px auto; /* Center image */
      display: block;
    }

    .page-tx68__feature-title {
      font-size: 1.4em;
      color: #0f4c75;
      margin-bottom: 10px;
    }

    .page-tx68__feature-description {
      font-size: 1em;
      color: #666;
    }

    .page-tx68__game-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
      gap: 25px;
      padding: 0;
      margin: 0;
      list-style: none;
    }

    .page-tx68__game-card {
      background-color: #fff;
      border-radius: 8px;
      box-shadow: 0 2px 10px rgba(0, 0, 0, 0.08);
      overflow: hidden;
      text-align: center;
      transition: transform 0.3s ease, box-shadow 0.3s ease;
      box-sizing: border-box;
    }

    .page-tx68__game-card:hover {
      transform: translateY(-5px);
      box-shadow: 0 6px 15px rgba(0, 0, 0, 0.1);
    }

    .page-tx68__game-image {
      width: 100%;
      min-width: 200px; /* Ensure images are not too small */
      height: 180px;
      min-height: 200px; /* Ensure images are not too small */
      object-fit: cover;
      display: block;
    }

    .page-tx68__game-info {
      padding: 20px;
    }

    .page-tx68__game-title {
      font-size: 1.3em;
      color: #0f4c75;
      margin-bottom: 10px;
    }

    .page-tx68__game-description {
      font-size: 0.95em;
      color: #666;
    }

    .page-tx68__download-guide {
      display: flex;
      flex-direction: column;
      gap: 20px;
    }

    .page-tx68__download-step {
      display: flex;
      align-items: center;
      background-color: #f9f9f9;
      padding: 20px;
      border-radius: 8px;
      box-shadow: 0 1px 5px rgba(0, 0, 0, 0.05);
    }

    .page-tx68__step-number {
      font-size: 2em;
      font-weight: bold;
      color: #ffcc00;
      margin-right: 20px;
      flex-shrink: 0;
    }

    .page-tx68__step-content h3 {
      font-size: 1.3em;
      color: #0f4c75;
      margin-top: 0;
      margin-bottom: 5px;
    }

    .page-tx68__step-content p {
      margin: 0;
      color: #555;
    }

    .page-tx68__faq-section {
      background-color: #f0f8ff;
      padding: 40px 20px;
      border-radius: 8px;
      box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
    }

    .page-tx68__faq-item {
      background-color: #fff;
      margin-bottom: 15px;
      border-radius: 8px;
      box-shadow: 0 1px 5px rgba(0, 0, 0, 0.05);
      overflow: hidden;
    }

    .page-tx68__faq-question {
      display: flex;
      justify-content: space-between;
      align-items: center;
      padding: 20px 25px;
      background-color: #e3f2fd;
      cursor: pointer;
      user-select: none;
      border-bottom: 1px solid #d1e5f8;
      transition: background-color 0.3s ease;
    }

    .page-tx68__faq-question:hover {
      background-color: #cce7fc;
    }

    .page-tx68__faq-question h3 {
      margin: 0;
      font-size: 1.2em;
      color: #0f4c75;
      pointer-events: none; /* Prevent h3 from blocking click */
    }

    .page-tx68__faq-toggle {
      font-size: 1.8em;
      font-weight: bold;
      color: #0f4c75;
      transition: transform 0.3s ease;
      pointer-events: none; /* Prevent toggle icon from blocking click */
    }

    .page-tx68__faq-item.active .page-tx68__faq-toggle {
      transform: rotate(45deg); /* Change + to X (or rotate to -) */
    }

    .page-tx68__faq-answer {
      max-height: 0;
      overflow: hidden;
      padding: 0 25px; /* Initial padding */
      opacity: 0;
      transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1), padding 0.4s ease, opacity 0.3s ease;
      color: #555;
      font-size: 1em;
    }

    .page-tx68__faq-item.active .page-tx68__faq-answer {
      max-height: 2000px !important; /* Sufficiently large to contain content */
      padding: 20px 25px !important; /* Expanded padding */
      opacity: 1;
    }

    /* Responsive Design */
    @media (max-width: 768px) {
      .page-tx68__hero-section {
        padding-top: 10px; /* Spacing for fixed header on mobile */
      }
      .page-tx68__hero-title {
        font-size: 2em;
      }
      .page-tx68__hero-subtitle {
        font-size: 1em;
      }
      .page-tx68__cta-button {
        padding: 12px 25px;
        font-size: 1em;
      }
      .page-tx68__floating-login {
        bottom: 15px;
        right: 15px;
        padding: 10px 20px;
        font-size: 0.9em;
      }
      .page-tx68__container {
        padding: 15px;
      }
      .page-tx68__section {
        padding: 25px 15px;
        margin-bottom: 20px;
      }
      .page-tx68__section-title {
        font-size: 1.8em;
        margin-bottom: 20px;
      }
      .page-tx68__text-content p {
        font-size: 1em;
      }

      /* List item responsiveness */
      .page-tx68__feature-list,
      .page-tx68__game-grid {
        grid-template-columns: 1fr; /* Single column on mobile */
        gap: 20px;
        width: 100% !important;
        max-width: 100% !important;
        padding: 0 !important;
        margin-left: 0 !important;
        margin-right: 0 !important;
        box-sizing: border-box !important;
      }

      .page-tx68__feature-item,
      .page-tx68__game-card {
        width: 100% !important;
        max-width: 100% !important;
        box-sizing: border-box !important;
        margin-left: 0 !important;
        margin-right: 0 !important;
        padding: 20px; /* Adjust padding for mobile */
        word-wrap: break-word !important;
        overflow-wrap: break-word !important;
        word-break: break-word !important;
      }

      .page-tx68__feature-icon {
        width: 200px !important; /* Force min width */
        height: auto !important;
        min-height: 150px !important; /* Ensure minimum height */
        margin-left: auto;
        margin-right: auto;
      }

      .page-tx68__game-image {
        width: 100% !important;
        height: auto !important;
        min-height: 180px !important; /* Ensure minimum height */
      }

      .page-tx68__download-step {
        flex-direction: column;
        text-align: center;
        padding: 15px;
      }
      .page-tx68__step-number {
        margin-right: 0;
        margin-bottom: 10px;
      }
      .page-tx68__step-content h3 {
        font-size: 1.1em;
      }
      .page-tx68__faq-question {
        padding: 15px 20px;
      }
      .page-tx68__faq-question h3 {
        font-size: 1.1em;
      }
      .page-tx68__faq-answer {
        padding: 0 20px;
      }
      .page-tx68__faq-item.active .page-tx68__faq-answer {
        padding: 15px 20px !important;
      }
    }

    /* Image responsive optimization */
    .page-tx68 img {
      max-width: 100%;
      height: auto;
      display: block; /* Ensure images are block level for max-width to work consistently */
      margin: 0 auto; /* Center images */
    }
    .page-tx68__image-container {
      width: 100%;
      max-width: 100%;
      overflow: hidden;
      box-sizing: border-box;
      margin-bottom: 20px;
    }

    @media (max-width: 768px) {
      .page-tx68 img {
        max-width: 100% !important;
        height: auto !important;
        box-sizing: border-box !important;
      }
      .page-tx68__image-container {
        width: 100% !important;
        max-width: 100% !important;
        box-sizing: border-box !important;
        padding: 0 5px !important; /* Adjust padding to avoid excessive space */
      }
    }