.page-x-s-vit-nam {
  font-family: 'Arial', sans-serif;
  color: #333;
  line-height: 1.6;
  background-color: #f8f8f8;
}

.page-x-s-vit-nam .container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

.page-x-s-vit-nam section {
  padding: 60px 0;
  margin-bottom: 20px;
}

.page-x-s-vit-nam h1, .page-x-s-vit-nam h2, .page-x-s-vit-nam h3 {
  color: #0A2463;
  text-align: center;
  margin-bottom: 30px;
}

.page-x-s-vit-nam h1 {
  font-size: 3.2em;
  color: #FFD700;
  text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
}

.page-x-s-vit-nam h2 {
  font-size: 2.5em;
  color: #0A2463;
}

.page-x-s-vit-nam h3 {
  font-size: 1.8em;
  color: #0A2463;
}

.page-x-s-vit-nam p {
  text-align: center;
  margin-bottom: 20px;
  font-size: 1.1em;
}

.page-x-s-vit-nam a {
  color: #0A2463;
  text-decoration: none;
}

.page-x-s-vit-nam a:hover {
  text-decoration: underline;
  color: #FFD700;
}

/* Hero Section */
.page-x-s-vit-nam .hero-section {
  position: relative;
  width: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 80px 20px;
  background: linear-gradient(135deg, #0A2463, #3a5c9b);
}

.page-x-s-vit-nam .hero-container {
  position: relative;
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}

.page-x-s-vit-nam .hero-image {
  width: 100%;
  margin-bottom: 30px;
}

.page-x-s-vit-nam .hero-image img {
  width: 100%;
  height: auto;
  max-width: 100%;
  display: block;
  border-radius: 12px;
  object-fit: cover;
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.3);
}

.page-x-s-vit-nam .hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
  width: 100%;
  color: #ffffff;
}

.page-x-s-vit-nam .hero-content h1 {
  color: #FFD700;
  margin-bottom: 20px;
}

.page-x-s-vit-nam .hero-content p {
  font-size: 1.25em;
  margin-bottom: 40px;
  color: #e0e0e0;
}

.page-x-s-vit-nam .cta-button {
  display: inline-block;
  padding: 18px 45px;
  background: #FFD700;
  color: #0A2463;
  text-decoration: none;
  border-radius: 8px;
  font-size: 1.3em;
  font-weight: bold;
  margin-top: 20px;
  transition: all 0.3s ease;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
  border: 2px solid #FFD700;
}

.page-x-s-vit-nam .cta-button:hover {
  background: #e6c200;
  transform: translateY(-3px);
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.3);
  color: #0A2463;
  text-decoration: none;
}

/* Why Choose Section */
.page-x-s-vit-nam .section-why-choose {
  background-color: #ffffff;
  padding: 80px 0;
}

.page-x-s-vit-nam .features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 30px;
  margin-top: 40px;
}

.page-x-s-vit-nam .feature-item {
  background-color: #fefefe;
  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;
  border-top: 4px solid #FFD700;
}

.page-x-s-vit-nam .feature-item:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
}

.page-x-s-vit-nam .feature-icon {
  width: 100px;
  height: 100px;
  margin-bottom: 20px;
  object-fit: contain;
}

.page-x-s-vit-nam .feature-item h3 {
  color: #0A2463;
  margin-bottom: 15px;
  font-size: 1.5em;
}

.page-x-s-vit-nam .feature-item p {
  color: #555;
  font-size: 1em;
  text-align: center;
}

/* Lottery Types Section */
.page-x-s-vit-nam .section-lottery-types {
  background-color: #f2f5fa;
  padding: 80px 0;
}

.page-x-s-vit-nam .lottery-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 30px;
  margin-top: 40px;
}

.page-x-s-vit-nam .lottery-card {
  background-color: #ffffff;
  border-radius: 10px;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.08);
  overflow: hidden;
  text-align: center;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.page-x-s-vit-nam .lottery-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.15);
}

.page-x-s-vit-nam .card-img {
  width: 100%;
  height: 250px;
  object-fit: cover;
  border-bottom: 1px solid #eee;
}

.page-x-s-vit-nam .lottery-card h3 {
  color: #0A2463;
  margin: 25px 15px 15px;
  font-size: 1.6em;
}

.page-x-s-vit-nam .lottery-card p {
  color: #666;
  padding: 0 25px 20px;
  font-size: 1em;
  text-align: center;
}

.page-x-s-vit-nam .lottery-card .card-button {
  display: inline-block;
  background-color: #FFD700;
  color: #0A2463;
  padding: 12px 25px;
  border-radius: 5px;
  margin-bottom: 25px;
  font-weight: bold;
  transition: background-color 0.3s ease;
}

.page-x-s-vit-nam .lottery-card .card-button:hover {
  background-color: #e6c200;
  text-decoration: none;
}

.page-x-s-vit-nam .note {
  font-style: italic;
  color: #777;
  margin-top: 40px;
  font-size: 0.95em;
}

/* How To Play Section */
.page-x-s-vit-nam .section-how-to-play {
  background-color: #ffffff;
  padding: 80px 0;
}

.page-x-s-vit-nam .steps-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 30px;
  margin-top: 40px;
}

.page-x-s-vit-nam .step-item {
  background-color: #fefefe;
  padding: 30px;
  border-radius: 10px;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
  text-align: center;
  border-bottom: 3px solid #0A2463;
}

.page-x-s-vit-nam .step-number {
  width: 60px;
  height: 60px;
  background-color: #0A2463;
  color: #FFD700;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2em;
  font-weight: bold;
  margin: 0 auto 20px;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
}

.page-x-s-vit-nam .step-item h3 {
  color: #0A2463;
  margin-bottom: 15px;
  font-size: 1.4em;
}

.page-x-s-vit-nam .step-item h3 a {
  color: #0A2463;
}

.page-x-s-vit-nam .step-item p {
  color: #555;
  font-size: 0.95em;
}

.page-x-s-vit-nam .cta-section {
    margin-top: 50px;
    text-align: center;
}

.page-x-s-vit-nam .cta-section p {
    font-size: 1.2em;
    color: #0A2463;
    font-weight: bold;
}

.page-x-s-vit-nam .cta-section p a {
    color: #FFD700;
    text-decoration: none;
    transition: color 0.3s ease;
}

.page-x-s-vit-nam .cta-section p a:hover {
    color: #e6c200;
}

/* Promotions Section */
.page-x-s-vit-nam .section-promotions {
  background-color: #f2f5fa;
  padding: 80px 0;
}

.page-x-s-vit-nam .promo-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 30px;
  margin-top: 40px;
}

.page-x-s-vit-nam .promo-card {
  background-color: #ffffff;
  border-radius: 10px;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.08);
  overflow: hidden;
  text-align: center;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.page-x-s-vit-nam .promo-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.15);
}

.page-x-s-vit-nam .promo-card .card-img {
  width: 100%;
  height: 220px;
  object-fit: cover;
  border-bottom: 1px solid #eee;
}

.page-x-s-vit-nam .promo-card h3 {
  color: #0A2463;
  margin: 25px 15px 15px;
  font-size: 1.6em;
}

.page-x-s-vit-nam .promo-card p {
  color: #666;
  padding: 0 25px 20px;
  font-size: 1em;
  text-align: center;
}

.page-x-s-vit-nam .promo-card p strong {
    color: #FFD700;
    font-size: 1.1em;
}

.page-x-s-vit-nam .promo-card .card-button {
  display: inline-block;
  background-color: #0A2463;
  color: #FFD700;
  padding: 12px 25px;
  border-radius: 5px;
  margin-bottom: 25px;
  font-weight: bold;
  transition: background-color 0.3s ease;
}

.page-x-s-vit-nam .promo-card .card-button:hover {
  background-color: #1a3d7a;
  text-decoration: none;
  color: #FFD700;
}

/* Tips Section */
.page-x-s-vit-nam .section-tips {
    background-color: #ffffff;
    padding: 80px 0;
}

.page-x-s-vit-nam .tip-list {
    list-style: none;
    padding: 0;
    margin-top: 40px;
    text-align: left;
}

.page-x-s-vit-nam .tip-list li {
    background-color: #fefefe;
    border-left: 5px solid #FFD700;
    padding: 20px 30px;
    margin-bottom: 20px;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
    font-size: 1.1em;
    color: #333;
}

.page-x-s-vit-nam .tip-list li strong {
    color: #0A2463;
    font-size: 1.2em;
}

.page-x-s-vit-nam .section-tips p {
    text-align: left;
    margin-top: 30px;
    color: #555;
}

/* FAQ Section */
.page-x-s-vit-nam .section-faq {
  background-color: #f2f5fa;
  padding: 80px 0;
}

.page-x-s-vit-nam .faq-list {
  margin-top: 40px;
}

.page-x-s-vit-nam .faq-item {
  margin-bottom: 15px;
  border: 1px solid #e0e0e0;
  border-radius: 8px;
  background-color: #ffffff;
  overflow: hidden;
}

.page-x-s-vit-nam .faq-question {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 18px 25px;
  background: #ffffff;
  cursor: pointer;
  transition: background-color 0.3s ease;
}

.page-x-s-vit-nam .faq-question:hover {
  background: #f5f5f5;
}

.page-x-s-vit-nam .faq-question h3 {
  margin: 0;
  font-size: 1.2em;
  color: #0A2463;
  text-align: left;
}

.page-x-s-vit-nam .faq-toggle {
  font-size: 1.8em;
  font-weight: bold;
  color: #FFD700;
  transition: transform 0.3s ease;
}

.page-x-s-vit-nam .faq-item.active .faq-toggle {
  transform: rotate(45deg);
  color: #0A2463;
}

.page-x-s-vit-nam .faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease, padding 0.3s ease;
  padding: 0 25px;
  background: #f9f9f9;
}

.page-x-s-vit-nam .faq-item.active .faq-answer {
  max-height: 500px; /* Sufficient height to contain content */
  padding: 20px 25px;
  border-top: 1px solid #e0e0e0;
}

.page-x-s-vit-nam .faq-answer p {
  margin: 0;
  color: #555;
  text-align: left;
  font-size: 1em;
}

.page-x-s-vit-nam .faq-answer p a {
    color: #0A2463;
    font-weight: bold;
}

.page-x-s-vit-nam .faq-answer p a:hover {
    color: #FFD700;
}

/* Conclusion Section */
.page-x-s-vit-nam .section-conclusion {
    background: linear-gradient(135deg, #0A2463, #3a5c9b);
    padding: 80px 0;
    color: #ffffff;
    text-align: center;
}

.page-x-s-vit-nam .section-conclusion h2 {
    color: #FFD700;
    font-size: 2.8em;
    margin-bottom: 30px;
}

.page-x-s-vit-nam .section-conclusion p {
    font-size: 1.2em;
    margin-bottom: 30px;
    color: #e0e0e0;
}

.page-x-s-vit-nam .section-conclusion p a {
    color: #FFD700;
    font-weight: bold;
    text-decoration: none;
}

.page-x-s-vit-nam .section-conclusion p a:hover {
    color: #e6c200;
    text-decoration: underline;
}

.page-x-s-vit-nam .final-cta {
    background-color: #FFD700;
    color: #0A2463;
    font-size: 1.4em;
    padding: 20px 50px;
    border-radius: 10px;
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.3);
}

.page-x-s-vit-nam .final-cta:hover {
    background-color: #e6c200;
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.4);
}

/* Responsive Design */
@media (max-width: 992px) {
  .page-x-s-vit-nam h1 {
    font-size: 2.8em;
  }
  .page-x-s-vit-nam h2 {
    font-size: 2em;
  }
  .page-x-s-vit-nam .hero-content p {
    font-size: 1.1em;
  }
  .page-x-s-vit-nam .cta-button {
    padding: 15px 35px;
    font-size: 1.1em;
  }
  .page-x-s-vit-nam .features-grid, .page-x-s-vit-nam .lottery-grid, .page-x-s-vit-nam .steps-grid, .page-x-s-vit-nam .promo-grid {
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  }
}

@media (max-width: 768px) {
  .page-x-s-vit-nam section {
    padding: 40px 0;
  }
  .page-x-s-vit-nam h1 {
    font-size: 2.2em;
  }
  .page-x-s-vit-nam h2 {
    font-size: 1.8em;
  }
  .page-x-s-vit-nam h3 {
    font-size: 1.4em;
  }
  .page-x-s-vit-nam .hero-content p {
    font-size: 1em;
  }
  .page-x-s-vit-nam .cta-button {
    padding: 12px 30px;
    font-size: 1em;
  }
  .page-x-s-vit-nam .feature-item, .page-x-s-vit-nam .lottery-card, .page-x-s-vit-nam .step-item, .page-x-s-vit-nam .promo-card {
    padding: 20px;
  }
  .page-x-s-vit-nam .feature-icon {
    width: 80px;
    height: 80px;
  }
  .page-x-s-vit-nam .lottery-card h3, .page-x-s-vit-nam .promo-card h3 {
    font-size: 1.4em;
  }
  .page-x-s-vit-nam .faq-question {
    padding: 15px 20px;
  }
  .page-x-s-vit-nam .faq-question h3 {
    font-size: 1.1em;
  }
  .page-x-s-vit-nam .faq-toggle {
    font-size: 1.5em;
  }
  .page-x-s-vit-nam .faq-answer {
    padding: 0 20px;
  }
  .page-x-s-vit-nam .faq-item.active .faq-answer {
    padding: 15px 20px;
  }
  .page-x-s-vit-nam .section-conclusion h2 {
    font-size: 2.2em;
  }
  .page-x-s-vit-nam .section-conclusion p {
    font-size: 1em;
  }
  .page-x-s-vit-nam .final-cta {
    font-size: 1.2em;
    padding: 15px 35px;
  }
}

@media (max-width: 480px) {
  .page-x-s-vit-nam .container {
    padding: 0 15px;
  }
  .page-x-s-vit-nam h1 {
    font-size: 1.8em;
  }
  .page-x-s-vit-nam h2 {
    font-size: 1.6em;
  }
  .page-x-s-vit-nam h3 {
    font-size: 1.2em;
  }
  .page-x-s-vit-nam .hero-content p {
    font-size: 0.95em;
  }
  .page-x-s-vit-nam .cta-button {
    padding: 10px 25px;
    font-size: 0.9em;
  }
  .page-x-s-vit-nam .feature-item, .page-x-s-vit-nam .lottery-card, .page-x-s-vit-nam .step-item, .page-x-s-vit-nam .promo-card {
    padding: 15px;
  }
  .page-x-s-vit-nam .card-img {
    height: 200px;
  }
  .page-x-s-vit-nam .faq-question h3 {
    font-size: 1em;
  }
  .page-x-s-vit-nam .faq-toggle {
    font-size: 1.2em;
  }
  .page-x-s-vit-nam .final-cta {
    font-size: 1em;
    padding: 12px 30px;
  }
}