.page-khuyen-mai {
  font-family: 'Arial', sans-serif;
  color: #333333;
  line-height: 1.6;
  background-color: #f8f8f8;
}

.page-khuyen-mai .container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

.page-khuyen-mai .section-title {
  font-size: 36px;
  color: #0A2463;
  text-align: center;
  margin-bottom: 50px;
  position: relative;
  padding-bottom: 15px;
  font-weight: bold;
}

.page-khuyen-mai .section-title::after {
  content: '';
  position: absolute;
  left: 50%;
  bottom: 0;
  transform: translateX(-50%);
  width: 80px;
  height: 4px;
  background-color: #E3B505;
  border-radius: 2px;
}

/* Hero Section */
.page-khuyen-mai .hero-section {
  position: relative;
  width: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 60px 20px;
  background: linear-gradient(135deg, #0A2463, #1A4D9B);
}

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

.page-khuyen-mai .hero-image {
  width: 100%;
  margin-bottom: 30px;
}

.page-khuyen-mai .hero-image img {
  width: 100%;
  height: auto;
  max-width: 100%;
  display: block;
  border-radius: 12px;
  object-fit: cover;
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.3);
}

.page-khuyen-mai .hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
  width: 100%;
  color: #ffffff;
}

.page-khuyen-mai .hero-title {
  font-size: 48px;
  font-weight: bold;
  margin-bottom: 20px;
  color: #E3B505;
  text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.4);
}

.page-khuyen-mai .hero-subtitle {
  font-size: 22px;
  margin-bottom: 30px;
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
  color: #f0f0f0;
}

.page-khuyen-mai .cta-button {
  display: inline-block;
  padding: 18px 45px;
  background: #E3B505;
  color: #0A2463;
  text-decoration: none;
  border-radius: 8px;
  font-size: 20px;
  font-weight: bold;
  margin-top: 20px;
  transition: all 0.3s ease;
  box-shadow: 0 6px 15px rgba(0, 0, 0, 0.2);
  border: 2px solid #E3B505;
}

.page-khuyen-mai .cta-button:hover {
  background: #ffc81a;
  transform: translateY(-3px);
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.3);
  border-color: #ffc81a;
}

/* Intro Section */
.page-khuyen-mai .intro-section {
  padding: 80px 0;
  background-color: #ffffff;
  text-align: center;
}

.page-khuyen-mai .intro-section p {
  font-size: 18px;
  margin-bottom: 20px;
  max-width: 900px;
  margin-left: auto;
  margin-right: auto;
  color: #555555;
}

.page-khuyen-mai .intro-section strong {
  color: #0A2463;
}

/* Featured Promos Section */
.page-khuyen-mai .featured-promos-section {
  padding: 80px 0;
  background-color: #f0f4f8;
}

.page-khuyen-mai .promo-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 30px;
}

.page-khuyen-mai .promo-card {
  background: #ffffff;
  border-radius: 12px;
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.1);
  overflow: hidden;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  display: flex;
  flex-direction: column;
  text-align: center;
}

.page-khuyen-mai .promo-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.15);
}

.page-khuyen-mai .promo-image {
  width: 100%;
  height: 220px;
  object-fit: cover;
  border-bottom: 1px solid #eee;
}

.page-khuyen-mai .promo-card-title {
  font-size: 24px;
  font-weight: bold;
  margin: 20px 15px 10px;
  color: #0A2463;
}

.page-khuyen-mai .promo-card-title a {
  color: #0A2463;
  text-decoration: none;
  transition: color 0.3s ease;
}

.page-khuyen-mai .promo-card-title a:hover {
  color: #E3B505;
}

.page-khuyen-mai .promo-description {
  font-size: 16px;
  color: #666666;
  padding: 0 20px 15px;
  flex-grow: 1;
}

.page-khuyen-mai .promo-button {
  display: inline-block;
  padding: 12px 25px;
  background: #E3B505;
  color: #0A2463;
  text-decoration: none;
  border-radius: 6px;
  font-size: 16px;
  font-weight: bold;
  margin: 15px 20px 20px;
  transition: background-color 0.3s ease, transform 0.3s ease;
}

.page-khuyen-mai .promo-button:hover {
  background: #ffc81a;
  transform: translateY(-2px);
}

/* VIP Section */
.page-khuyen-mai .vip-section {
  padding: 80px 0;
  background-color: #ffffff;
}

.page-khuyen-mai .vip-content {
  display: flex;
  align-items: center;
  gap: 40px;
  flex-wrap: wrap;
}

.page-khuyen-mai .vip-image {
  flex: 1;
  min-width: 350px;
  max-width: 50%;
  height: auto;
  border-radius: 12px;
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
  object-fit: cover;
}

.page-khuyen-mai .vip-text {
  flex: 1;
  min-width: 400px;
}

.page-khuyen-mai .vip-text p {
  font-size: 18px;
  margin-bottom: 15px;
  color: #555555;
}

.page-khuyen-mai .vip-text ul {
  list-style: disc;
  margin-left: 25px;
  margin-bottom: 20px;
  color: #555555;
}

.page-khuyen-mai .vip-text ul li {
  margin-bottom: 8px;
  font-size: 17px;
}

.page-khuyen-mai .vip-text strong {
  color: #0A2463;
}

/* Guide Section */
.page-khuyen-mai .guide-section {
  padding: 80px 0;
  background-color: #f0f4f8;
}

.page-khuyen-mai .guide-steps {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 30px;
}

.page-khuyen-mai .step-item {
  background: #ffffff;
  padding: 30px;
  border-radius: 12px;
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.1);
  text-align: center;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.page-khuyen-mai .step-item:hover {
  transform: translateY(-8px);
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.15);
}

.page-khuyen-mai .step-icon {
  width: 60px;
  height: 60px;
  background-color: #0A2463;
  color: #ffffff;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 32px;
  font-weight: bold;
  margin: 0 auto 25px;
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.2);
}

.page-khuyen-mai .step-item h3 {
  font-size: 24px;
  color: #0A2463;
  margin-bottom: 15px;
}

.page-khuyen-mai .step-item p {
  font-size: 16px;
  color: #666666;
  margin-bottom: 20px;
}

.page-khuyen-mai .step-item p a {
  color: #0A2463;
  text-decoration: underline;
}

.page-khuyen-mai .step-button {
  display: inline-block;
  padding: 10px 20px;
  background: #E3B505;
  color: #0A2463;
  text-decoration: none;
  border-radius: 6px;
  font-size: 15px;
  font-weight: bold;
  transition: background-color 0.3s ease;
}

.page-khuyen-mai .step-button:hover {
  background: #ffc81a;
}

/* Terms Section */
.page-khuyen-mai .terms-section {
  padding: 80px 0;
  background-color: #ffffff;
}

.page-khuyen-mai .terms-section p {
  font-size: 18px;
  margin-bottom: 20px;
  color: #555555;
}

.page-khuyen-mai .terms-section ul {
  list-style: disc;
  margin-left: 25px;
  margin-bottom: 20px;
  color: #555555;
}

.page-khuyen-mai .terms-section ul li {
  margin-bottom: 10px;
  font-size: 17px;
}

.page-khuyen-mai .terms-section a {
  color: #0A2463;
  text-decoration: underline;
}

/* FAQ Section */
.page-khuyen-mai .faq-section {
  padding: 80px 0;
  background-color: #f0f4f8;
}

.page-khuyen-mai .faq-list {
  max-width: 900px;
  margin: 0 auto;
}

.page-khuyen-mai .faq-item {
  margin-bottom: 15px;
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.08);
}

.page-khuyen-mai .faq-question {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 18px 25px;
  background: #ffffff;
  border: 1px solid #e0e0e0;
  border-radius: 8px;
  cursor: pointer;
  transition: background-color 0.3s ease;
}

.page-khuyen-mai .faq-question:hover {
  background: #f5f5f5;
}

.page-khuyen-mai .faq-question h3 {
  font-size: 20px;
  color: #0A2463;
  margin: 0;
  flex-grow: 1;
}

.page-khuyen-mai .faq-toggle {
  font-size: 28px;
  font-weight: bold;
  color: #E3B505;
  transition: transform 0.3s ease;
  line-height: 1;
}

.page-khuyen-mai .faq-item.active .faq-toggle {
  transform: rotate(45deg);
  color: #0A2463;
}

.page-khuyen-mai .faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease-out, padding 0.4s ease-out;
  padding: 0 25px;
  background: #f9f9f9;
  border-top: none;
  border-radius: 0 0 8px 8px;
}

.page-khuyen-mai .faq-item.active .faq-answer {
  max-height: 500px; /* Sufficient height to contain content */
  padding: 20px 25px;
  border: 1px solid #e0e0e0;
  border-top: none;
}

.page-khuyen-mai .faq-answer p {
  font-size: 16px;
  color: #555555;
  margin-bottom: 10px;
}

.page-khuyen-mai .faq-answer p:last-child {
  margin-bottom: 0;
}

.page-khuyen-mai .faq-answer a {
  color: #0A2463;
  text-decoration: underline;
}

/* Latest News Section */
.page-khuyen-mai .latest-news-section {
  padding: 80px 0 100px;
  background-color: #ffffff;
}

.page-khuyen-mai .news-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 30px;
}

.page-khuyen-mai .news-card {
  background: #ffffff;
  border-radius: 12px;
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.1);
  overflow: hidden;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  display: flex;
  flex-direction: column;
}

.page-khuyen-mai .news-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.15);
}

.page-khuyen-mai .news-image {
  width: 100%;
  height: 200px;
  object-fit: cover;
  border-bottom: 1px solid #eee;
}

.page-khuyen-mai .news-card-title {
  font-size: 22px;
  font-weight: bold;
  margin: 20px 20px 10px;
  color: #0A2463;
}

.page-khuyen-mai .news-card-title a {
  color: #0A2463;
  text-decoration: none;
  transition: color 0.3s ease;
}

.page-khuyen-mai .news-card-title a:hover {
  color: #E3B505;
}

.page-khuyen-mai .news-summary {
  font-size: 16px;
  color: #666666;
  padding: 0 20px 15px;
  flex-grow: 1;
}

.page-khuyen-mai .news-button {
  display: inline-block;
  padding: 10px 20px;
  background: #0A2463;
  color: #ffffff;
  text-decoration: none;
  border-radius: 6px;
  font-size: 15px;
  font-weight: bold;
  margin: 15px 20px 20px;
  align-self: flex-start;
  transition: background-color 0.3s ease;
}

.page-khuyen-mai .news-button:hover {
  background: #1A4D9B;
}

/* Responsive Design */
@media (max-width: 1024px) {
  .page-khuyen-mai .section-title {
    font-size: 32px;
  }
  .page-khuyen-mai .hero-title {
    font-size: 40px;
  }
  .page-khuyen-mai .hero-subtitle {
    font-size: 18px;
  }
  .page-khuyen-mai .cta-button {
    padding: 15px 35px;
    font-size: 18px;
  }
  .page-khuyen-mai .vip-content {
    flex-direction: column;
    text-align: center;
  }
  .page-khuyen-mai .vip-image {
    max-width: 80%;
    min-width: unset;
  }
  .page-khuyen-mai .vip-text {
    min-width: unset;
    padding: 0 20px;
  }
  .page-khuyen-mai .vip-text ul {
    text-align: left;
  }
}

@media (max-width: 768px) {
  .page-khuyen-mai .section-title {
    font-size: 28px;
    margin-bottom: 40px;
  }
  .page-khuyen-mai .hero-section {
    padding: 40px 15px;
  }
  .page-khuyen-mai .hero-title {
    font-size: 32px;
    margin-bottom: 15px;
  }
  .page-khuyen-mai .hero-subtitle {
    font-size: 16px;
    margin-bottom: 25px;
  }
  .page-khuyen-mai .cta-button {
    padding: 12px 30px;
    font-size: 16px;
  }
  .page-khuyen-mai .intro-section, .page-khuyen-mai .featured-promos-section, .page-khuyen-mai .vip-section, .page-khuyen-mai .guide-section, .page-khuyen-mai .terms-section, .page-khuyen-mai .faq-section, .page-khuyen-mai .latest-news-section {
    padding: 50px 0;
  }
  .page-khuyen-mai .promo-grid, .page-khuyen-mai .guide-steps, .page-khuyen-mai .news-grid {
    grid-template-columns: 1fr;
    gap: 25px;
  }
  .page-khuyen-mai .promo-card-title, .page-khuyen-mai .step-item h3, .page-khuyen-mai .news-card-title {
    font-size: 20px;
  }
  .page-khuyen-mai .promo-description, .page-khuyen-mai .step-item p, .page-khuyen-mai .news-summary {
    font-size: 15px;
  }
  .page-khuyen-mai .faq-question h3 {
    font-size: 18px;
  }
  .page-khuyen-mai .faq-question, .page-khuyen-mai .faq-answer {
    padding: 15px 20px;
  }
  .page-khuyen-mai .faq-toggle {
    font-size: 24px;
  }
}

@media (max-width: 480px) {
  .page-khuyen-mai .section-title {
    font-size: 24px;
    margin-bottom: 30px;
  }
  .page-khuyen-mai .hero-title {
    font-size: 28px;
  }
  .page-khuyen-mai .hero-subtitle {
    font-size: 14px;
  }
  .page-khuyen-mai .cta-button {
    padding: 10px 25px;
    font-size: 14px;
  }
  .page-khuyen-mai .intro-section p, .page-khuyen-mai .terms-section p {
    font-size: 16px;
  }
  .page-khuyen-mai .vip-image {
    max-width: 100%;
  }
}