.page-resources-hello88-mobile-app-guide {
  font-family: Arial, sans-serif;
  line-height: 1.6;
  color: #333;
  background-color: #f8f9fa;
}

.page-resources-hello88-mobile-app-guide-article-container {
  max-width: 800px;
  margin: 40px auto;
  padding: 20px;
  background-color: #ffffff;
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
  border-radius: 8px;
}

.page-resources-hello88-mobile-app-guide-main-title {
  color: #1A237E;
  text-align: center;
  margin-bottom: 30px;
  font-size: 2.5em;
  line-height: 1.2;
}

.page-resources-hello88-mobile-app-guide-intro-text {
  font-size: 1.1em;
  margin-bottom: 30px;
  text-align: justify;
}

.page-resources-hello88-mobile-app-guide-section {
  margin-bottom: 40px;
}

.page-resources-hello88-mobile-app-guide-section-title {
  color: #1A237E;
  font-size: 2em;
  margin-bottom: 20px;
  border-bottom: 2px solid #FFC107;
  padding-bottom: 10px;
}

.page-resources-hello88-mobile-app-guide-sub-title {
  color: #333;
  font-size: 1.5em;
  margin-top: 25px;
  margin-bottom: 15px;
}

.page-resources-hello88-mobile-app-guide-list,
.page-resources-hello88-mobile-app-guide-numbered-list {
  margin-left: 20px;
  margin-bottom: 20px;
}

.page-resources-hello88-mobile-app-guide-list li,
.page-resources-hello88-mobile-app-guide-numbered-list li {
  margin-bottom: 10px;
  font-size: 1.05em;
  color: #444;
}

.page-resources-hello88-mobile-app-guide-sub-list {
  margin-left: 20px;
  list-style-type: circle;
  margin-top: 10px;
}

.page-resources-hello88-mobile-app-guide-btn {
  display: inline-block;
  padding: 12px 25px;
  border-radius: 5px;
  text-decoration: none;
  font-weight: bold;
  text-align: center;
  transition: background-color 0.3s ease, transform 0.2s ease;
  margin-top: 15px;
  margin-right: 15px;
  white-space: nowrap;
}

.page-resources-hello88-mobile-app-guide-btn-primary {
  background-color: #FFC107;
  color: #1A237E;
  border: 1px solid #FFC107;
}

.page-resources-hello88-mobile-app-guide-btn-primary:hover {
  background-color: #e5ac00;
  transform: translateY(-2px);
}

.page-resources-hello88-mobile-app-guide-btn-secondary {
  background-color: #1A237E;
  color: #FFC107;
  border: 1px solid #1A237E;
}

.page-resources-hello88-mobile-app-guide-btn-secondary:hover {
  background-color: #0d1252;
  transform: translateY(-2px);
}

.page-resources-hello88-mobile-app-guide-btn-cta {
  background-color: #FFC107;
  color: #1A237E;
  border: 2px solid #FFC107;
  font-size: 1.2em;
  padding: 15px 30px;
  margin-top: 30px;
}

.page-resources-hello88-mobile-app-guide-btn-cta:hover {
  background-color: #e5ac00;
  transform: translateY(-3px);
}

.page-resources-hello88-mobile-app-guide-btn-back {
  background-color: #f0f0f0;
  color: #1A237E;
  border: 1px solid #ccc;
}

.page-resources-hello88-mobile-app-guide-btn-back:hover {
  background-color: #e0e0e0;
  transform: translateY(-2px);
}

.page-resources-hello88-mobile-app-guide-image {
  max-width: 100%;
  height: auto;
  border-radius: 8px;
  margin: 20px 0;
  display: block;
}

.page-resources-hello88-mobile-app-guide-image-centered {
  margin-left: auto;
  margin-right: auto;
}

.page-resources-hello88-mobile-app-guide-feature-list li strong {
  color: #1A237E;
}

.page-resources-hello88-mobile-app-guide-promotion-section {
  background-color: #fcf8e3;
  border-left: 5px solid #FFC107;
  padding: 20px;
  border-radius: 5px;
}

.page-resources-hello88-mobile-app-guide-faq-item {
  background-color: #fefefe;
  border: 1px solid #eee;
  border-radius: 5px;
  padding: 15px 20px;
  margin-bottom: 15px;
}

.page-resources-hello88-mobile-app-guide-faq-item h3 {
  margin-top: 0;
  color: #1A237E;
}

.page-resources-hello88-mobile-app-guide-conclusion {
  text-align: center;
  padding-top: 30px;
  border-top: 1px solid #eee;
}

.page-resources-hello88-mobile-app-guide-button-group {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 15px;
  margin-top: 25px;
}

@media (max-width: 768px) {
  .page-resources-hello88-mobile-app-guide-article-container {
    margin: 20px;
    padding: 15px;
  }

  .page-resources-hello88-mobile-app-guide-main-title {
    font-size: 2em;
  }

  .page-resources-hello88-mobile-app-guide-section-title {
    font-size: 1.7em;
  }

  .page-resources-hello88-mobile-app-guide-sub-title {
    font-size: 1.3em;
  }

  .page-resources-hello88-mobile-app-guide-btn {
    width: 100%;
    margin-right: 0;
  }

  .page-resources-hello88-mobile-app-guide-button-group {
    flex-direction: column;
    align-items: center;
  }
}

@media (max-width: 480px) {
  .page-resources-hello88-mobile-app-guide-main-title {
    font-size: 1.8em;
  }

  .page-resources-hello88-mobile-app-guide-section-title {
    font-size: 1.5em;
  }

  .page-resources-hello88-mobile-app-guide-btn-cta {
    font-size: 1em;
    padding: 12px 20px;
  }
}