:root {
      --primary-color: #007bff;
      --secondary-color: #6c757d;
      --accent-color: #28a745;
      --background-light: #f8f9fa;
      --text-dark: #343a40;
      --text-light: #ffffff;
      --border-color: #dee2e6;
      --shadow-color: rgba(0, 0, 0, 0.1);
      --hover-color: #0056b3;
    }

    .page-99vz {
      font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif;
      line-height: 1.6;
      color: var(--text-dark);
      background-color: var(--background-light);
      padding-top: var(--header-offset, 122px); /* Fallback for header offset */
    }

    .page-99vz__container {
      max-width: 1200px;
      margin: 0 auto;
      padding: 20px;
      box-sizing: border-box;
    }

    .page-99vz__hero-section {
      background: linear-gradient(135deg, var(--primary-color) 0%, #004085 100%);
      color: var(--text-light);
      padding: 60px 20px 40px;
      text-align: center;
      margin-bottom: 40px;
      border-radius: 8px;
      box-shadow: 0 4px 15px var(--shadow-color);
      position: relative;
      overflow: hidden;
      padding-top: calc(10px + var(--header-offset, 0px)); /* Small top padding, relying on body for main offset */
    }

    .page-99vz__hero-section::before {
      content: '';
      position: absolute;
      top: 0;
      left: 0;
      width: 100%;
      height: 100%;
      background: url('[GALLERY:hero:1920x1080:betting,vietnam,casino]') no-repeat center center/cover;
      opacity: 0.15;
      z-index: 0;
    }

    .page-99vz__hero-content {
      position: relative;
      z-index: 1;
    }

    .page-99vz__hero-title {
      font-size: 2.8em;
      margin-bottom: 15px;
      font-weight: 700;
      color: var(--text-light);
      text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
    }

    .page-99vz__hero-description {
      font-size: 1.2em;
      margin-bottom: 30px;
      max-width: 800px;
      margin-left: auto;
      margin-right: auto;
      color: var(--text-light);
    }

    .page-99vz__button {
      display: inline-block;
      background-color: var(--accent-color);
      color: var(--text-light);
      padding: 14px 30px;
      border-radius: 50px;
      text-decoration: none;
      font-weight: 600;
      transition: background-color 0.3s ease, transform 0.2s ease;
      border: none;
      cursor: pointer;
      font-size: 1.1em;
    }

    .page-99vz__button:hover {
      background-color: #218838;
      transform: translateY(-2px);
    }

    .page-99vz__section {
      background-color: var(--text-light);
      padding: 40px 20px;
      margin-bottom: 30px;
      border-radius: 8px;
      box-shadow: 0 2px 10px var(--shadow-color);
    }

    .page-99vz__section-title {
      font-size: 2.2em;
      color: var(--primary-color);
      margin-bottom: 30px;
      text-align: center;
      font-weight: 700;
    }

    .page-99vz__text-content {
      font-size: 1.1em;
      margin-bottom: 20px;
      text-align: justify;
      color: var(--text-dark);
    }

    .page-99vz__feature-list {
      list-style: none;
      padding: 0;
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
      gap: 20px;
      margin-top: 30px;
    }

    .page-99vz__feature-item {
      background-color: var(--background-light);
      border: 1px solid var(--border-color);
      border-radius: 8px;
      padding: 25px;
      text-align: center;
      box-shadow: 0 2px 5px rgba(0, 0, 0, 0.05);
      transition: transform 0.3s ease, box-shadow 0.3s ease;
      box-sizing: border-box;
    }

    .page-99vz__feature-item:hover {
      transform: translateY(-5px);
      box-shadow: 0 5px 15px var(--shadow-color);
    }

    .page-99vz__feature-icon {
      width: 250px;
      height: auto;
      margin-bottom: 15px;
      border-radius: 8px;
      max-width: 100%;
    }

    .page-99vz__feature-title {
      font-size: 1.4em;
      color: var(--primary-color);
      margin-bottom: 10px;
      font-weight: 600;
    }

    .page-99vz__feature-description {
      font-size: 0.95em;
      color: var(--secondary-color);
    }

    .page-99vz__game-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
      gap: 25px;
      margin-top: 30px;
    }

    .page-99vz__game-card {
      background-color: var(--background-light);
      border: 1px solid var(--border-color);
      border-radius: 10px;
      overflow: hidden;
      box-shadow: 0 4px 12px var(--shadow-color);
      transition: transform 0.3s ease, box-shadow 0.3s ease;
      box-sizing: border-box;
      display: flex;
      flex-direction: column;
    }

    .page-99vz__game-card:hover {
      transform: translateY(-7px);
      box-shadow: 0 8px 20px rgba(0, 0, 0, 0.15);
    }

    .page-99vz__game-image-wrapper {
      width: 100%;
      height: 200px;
      overflow: hidden;
    }

    .page-99vz__game-image {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform 0.3s ease;
    }

    .page-99vz__game-card:hover .page-99vz__game-image {
      transform: scale(1.05);
    }

    .page-99vz__game-content {
      padding: 20px;
      flex-grow: 1;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .page-99vz__game-title {
      font-size: 1.5em;
      color: var(--primary-color);
      margin-bottom: 10px;
      font-weight: 600;
    }

    .page-99vz__game-description {
      font-size: 0.95em;
      color: var(--secondary-color);
      flex-grow: 1;
      margin-bottom: 15px;
    }

    .page-99vz__promotion-card {
      background-color: #e9f7ef; /* Light green for promotions */
      border: 1px solid var(--accent-color);
      border-radius: 10px;
      padding: 30px;
      text-align: center;
      margin-bottom: 20px;
      box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
    }

    .page-99vz__promotion-title {
      font-size: 1.8em;
      color: var(--accent-color);
      margin-bottom: 15px;
      font-weight: 700;
    }

    .page-99vz__promotion-description {
      font-size: 1.1em;
      color: var(--text-dark);
      margin-bottom: 25px;
    }

    .page-99vz__guide-steps {
      list-style: none;
      padding: 0;
      counter-reset: step-counter;
    }

    .page-99vz__guide-item {
      display: flex;
      align-items: flex-start;
      margin-bottom: 25px;
      padding: 15px;
      background-color: var(--background-light);
      border-left: 5px solid var(--primary-color);
      border-radius: 5px;
      box-shadow: 0 1px 5px rgba(0, 0, 0, 0.05);
      box-sizing: border-box;
    }

    .page-99vz__guide-item::before {
      counter-increment: step-counter;
      content: counter(step-counter);
      background-color: var(--primary-color);
      color: var(--text-light);
      border-radius: 50%;
      width: 35px;
      height: 35px;
      display: flex;
      justify-content: center;
      align-items: center;
      font-weight: 700;
      font-size: 1.1em;
      margin-right: 15px;
      flex-shrink: 0;
    }

    .page-99vz__guide-content h3 {
      margin-top: 0;
      color: var(--primary-color);
      font-size: 1.3em;
      margin-bottom: 5px;
    }

    .page-99vz__guide-content p {
      margin-bottom: 0;
      color: var(--secondary-color);
    }

    .page-99vz__app-download {
      text-align: center;
      padding: 30px;
      background-color: #e6f7ff; /* Light blue for app section */
      border-radius: 8px;
      margin-top: 30px;
      box-shadow: 0 2px 10px rgba(0, 0, 0, 0.08);
    }

    .page-99vz__app-image {
      max-width: 300px;
      height: auto;
      margin-bottom: 20px;
      border-radius: 8px;
      box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
      width: 100%; /* Ensure responsiveness */
    }

    .page-99vz__app-text {
      font-size: 1.1em;
      margin-bottom: 25px;
      color: var(--text-dark);
    }

    .page-99vz__faq-list {
      margin-top: 30px;
    }

    .page-99vz__faq-item {
      background-color: var(--background-light);
      border: 1px solid var(--border-color);
      border-radius: 8px;
      margin-bottom: 15px;
      overflow: hidden;
      box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
    }

    .page-99vz__faq-question {
      display: flex;
      justify-content: space-between;
      align-items: center;
      padding: 18px 20px;
      cursor: pointer;
      background-color: var(--text-light);
      border-bottom: 1px solid var(--border-color);
      transition: background-color 0.3s ease;
      user-select: none;
    }

    .page-99vz__faq-question:hover {
      background-color: #f1f1f1;
    }

    .page-99vz__faq-question h3 {
      margin: 0;
      font-size: 1.2em;
      color: var(--primary-color);
      font-weight: 600;
      pointer-events: none; /* Prevent h3 from blocking click event */
    }

    .page-99vz__faq-toggle {
      font-size: 1.5em;
      font-weight: 700;
      color: var(--primary-color);
      pointer-events: none; /* Prevent toggle icon from blocking click event */
      transition: transform 0.3s ease;
    }

    .page-99vz__faq-item.active .page-99vz__faq-toggle {
      transform: rotate(45deg); /* Change '+' to 'x' visually */
    }

    .page-99vz__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;
      background-color: #fefefe;
      color: var(--secondary-color);
      font-size: 1em;
    }

    .page-99vz__faq-item.active .page-99vz__faq-answer {
      max-height: 2000px !important; /* Sufficiently large value */
      padding: 20px !important;
      opacity: 1;
    }

    /* Responsive Design */
    @media (max-width: 768px) {
      .page-99vz__container {
        padding: 15px;
      }

      .page-99vz__hero-title {
        font-size: 2em;
      }

      .page-99vz__hero-description {
        font-size: 1em;
      }

      .page-99vz__button {
        padding: 12px 25px;
        font-size: 1em;
      }

      .page-99vz__section-title {
        font-size: 1.8em;
      }

      .page-99vz__text-content {
        font-size: 1em;
      }

      .page-99vz__feature-list,
      .page-99vz__game-grid {
        grid-template-columns: 1fr;
        gap: 15px;
        width: 100% !important;
        max-width: 100% !important;
        padding: 0 !important;
        margin-left: 0 !important;
        margin-right: 0 !important;
        box-sizing: border-box !important;
      }

      .page-99vz__feature-item,
      .page-99vz__game-card {
        width: 100% !important;
        max-width: 100% !important;
        margin-left: 0 !important;
        margin-right: 0 !important;
        box-sizing: border-box !important;
      }

      .page-99vz__game-image-wrapper {
        height: 180px;
      }

      .page-99vz__game-title {
        font-size: 1.3em;
      }

      .page-99vz__guide-item {
        flex-direction: column;
        align-items: center;
        text-align: center;
        padding: 10px;
        word-wrap: break-word !important;
        overflow-wrap: break-word !important;
      }

      .page-99vz__guide-item::before {
        margin-right: 0;
        margin-bottom: 10px;
      }

      .page-99vz__guide-content {
        width: 100%;
      }

      .page-99vz__guide-content h3 {
        font-size: 1.1em;
      }

      .page-99vz__guide-content p {
        font-size: 0.9em;
      }

      .page-99vz__app-image {
        max-width: 250px;
      }

      .page-99vz__faq-question {
        padding: 15px;
      }

      .page-99vz__faq-question h3 {
        font-size: 1.1em;
        word-wrap: break-word !important;
        overflow-wrap: break-word !important;
        word-break: break-word !important;
      }

      .page-99vz__faq-answer {
        padding: 15px !important;
        word-wrap: break-word !important;
        overflow-wrap: break-word !important;
        word-break: break-word !important;
      }

      .page-99vz__faq-toggle {
        font-size: 1.3em;
      }

      .page-99vz__feature-icon,
      .page-99vz__game-image,
      .page-99vz__app-image {
        max-width: 100% !important;
        height: auto !important;
        box-sizing: border-box !important;
      }

      .page-99vz__game-image-wrapper,
      .page-99vz__app-download {
        width: 100% !important;
        max-width: 100% !important;
        overflow: hidden !important;
        box-sizing: border-box !important;
      }
    }

    @media (max-width: 480px) {
      .page-99vz__hero-title {
        font-size: 1.8em;
      }

      .page-99vz__section-title {
        font-size: 1.6em;
      }

      .page-99vz__promotion-title {
        font-size: 1.5em;
      }
    }