.page-khuyen-mai {
  background: #0A1D3F;
  color: #F3F8FF;
  max-width: 1200px;
  margin: 0 auto;
  font-family: 'Segoe UI', Arial, sans-serif;
  line-height: 1.5;
}

.page-khuyen-mai__hero-section {
  padding: 10px 16px 0;
}

.page-khuyen-mai__hero-image {
  width: 100%;
  border-radius: 16px;
  overflow: hidden;
  margin-bottom: 20px;
}

.page-khuyen-mai__hero-img {
  width: 1200px;
  height: 300px;
  object-fit: cover;
  display: block;
}

.page-khuyen-mai__hero-content {
  text-align: center;
  padding: 0 12px 20px;
}

.page-khuyen-mai__main-title {
  color: #F2C14E;
  font-weight: 700;
  line-height: 1.3;
  margin: 0 0 12px;
  max-width: 860px;
  margin-left: auto;
  margin-right: auto;
}

.page-khuyen-mai__hero-desc {
  color: #AFC4E8;
  font-size: 16px;
  max-width: 900px;
  margin: 0 auto 20px;
}

.page-khuyen-mai__hero-actions {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 12px;
  width: 100%;
  max-width: 100%;
  overflow: hidden;
  box-sizing: border-box;
}

.page-khuyen-mai__cta-btn {
  display: inline-block;
  background: linear-gradient(180deg, #2B73F6 0%, #1144A6 100%);
  color: #ffffff;
  padding: 14px 32px;
  border-radius: 8px;
  text-decoration: none;
  font-weight: 600;
  min-width: 160px;
  text-align: center;
  box-sizing: border-box;
}

.page-khuyen-mai__cta-btn--secondary {
  background: transparent;
  border: 1px solid #244D84;
  color: #4FA8FF;
}

.page-khuyen-mai__promo-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  padding: 40px 16px 10px;
}

.page-khuyen-mai__promo-card {
  background: #10233F;
  border: 1px solid #244D84;
  border-radius: 16px;
  padding: 24px;
  text-align: center;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.page-khuyen-mai__promo-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 30px rgba(79, 168, 255, 0.2);
}

.page-khuyen-mai__promo-icon {
  font-size: 40px;
  margin-bottom: 12px;
}

.page-khuyen-mai__promo-title {
  color: #F3F8FF;
  font-size: 18px;
  margin-bottom: 10px;
}

.page-khuyen-mai__promo-text {
  color: #AFC4E8;
  font-size: 14px;
  line-height: 1.5;
  margin-bottom: 16px;
}

.page-khuyen-mai__promo-link {
  display: inline-block;
  color: #F2C14E;
  font-weight: 600;
  text-decoration: none;
  padding: 8px 0;
  border-bottom: 2px solid #F2C14E;
  transition: color 0.3s;
}

.page-khuyen-mai__promo-link:hover {
  color: #4FA8FF;
  border-color: #4FA8FF;
}

.page-khuyen-mai__detail-section {
  padding: 50px 16px 10px;
}

.page-khuyen-mai__section-title {
  text-align: center;
  color: #4FA8FF;
  font-size: 24px;
  margin-bottom: 30px;
  font-weight: 600;
}

.page-khuyen-mai__detail-inner {
  display: flex;
  gap: 30px;
  align-items: center;
  background: #10233F;
  border-radius: 16px;
  padding: 24px;
  border: 1px solid #1B3357;
}

.page-khuyen-mai__detail-image {
  flex: 0 0 45%;
}

.page-khuyen-mai__detail-img {
  width: 100%;
  max-width: 100%;
  height: auto;
  border-radius: 12px;
}

.page-khuyen-mai__detail-content {
  flex: 1;
}

.page-khuyen-mai__detail-title {
  color: #F2C14E;
  font-size: 18px;
  margin-bottom: 12px;
}

.page-khuyen-mai__detail-text {
  color: #AFC4E8;
  font-size: 14px;
  margin-bottom: 16px;
}

.page-khuyen-mai__bonus-section {
  padding: 50px 16px 20px;
  border-top: 1px solid #1B3357;
}

.page-khuyen-mai__bonus-list {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.page-khuyen-mai__bonus-card {
  background: #10233F;
  border: 1px solid #244D84;
  border-radius: 16px;
  overflow: hidden;
  padding-bottom: 20px;
}

.page-khuyen-mai__bonus-img {
  width: 100%;
  height: auto;
  max-width: 100%;
  display: block;
}

.page-khuyen-mai__bonus-title {
  color: #4FA8FF;
  font-size: 16px;
  padding: 16px 16px 8px;
  margin: 0;
}

.page-khuyen-mai__bonus-text {
  color: #AFC4E8;
  font-size: 13px;
  line-height: 1.5;
  padding: 0 16px;
  margin: 0;
}

.page-khuyen-mai__faq-section {
  padding: 30px 16px 50px;
}

.page-khuyen-mai__faq-list {
  max-width: 860px;
  margin: 0 auto;
}

.page-khuyen-mai__faq-item {
  background: #10233F;
  border: 1px solid #244D84;
  border-radius: 10px;
  margin-bottom: 12px;
  padding: 0 16px;
}

.page-khuyen-mai__faq-question {
  padding: 14px 0;
  cursor: pointer;
  font-weight: 600;
  color: #F3F8FF;
  display: flex;
  justify-content: space-between;
  align-items: center;
  list-style: none;
  font-size: 15px;
}

.page-khuyen-mai__faq-question::-webkit-details-marker {
  display: none;
}

.page-khuyen-mai__faq-toggle {
  color: #4FA8FF;
  font-size: 18px;
  transition: transform 0.3s;
}

.page-khuyen-mai__faq-item[open] .page-khuyen-mai__faq-toggle {
  transform: rotate(45deg);
}

.page-khuyen-mai__faq-answer {
  color: #AFC4E8;
  font-size: 14px;
  line-height: 1.6;
  border-top: 1px solid #1B3357;
  padding: 10px 0;
  margin: 0;
}

@media (max-width: 1024px) {
  .page-khuyen-mai__promo-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .page-khuyen-mai__bonus-list {
    grid-template-columns: repeat(2, 1fr);
  }
  .page-khuyen-mai__detail-inner {
    flex-direction: column;
    align-items: flex-start;
  }
  .page-khuyen-mai__detail-image {
    width: 100%;
  }
}

@media (max-width: 768px) {
  .page-khuyen-mai__hero-image {
    margin-bottom: 12px;
  }
  .page-khuyen-mai__hero-img {
    width: 100%;
    height: auto;
    max-width: 100%;
  }
  .page-khuyen-mai__promo-grid {
    grid-template-columns: 1fr;
  }
  .page-khuyen-mai__bonus-list {
    grid-template-columns: 1fr;
  }
  .page-khuyen-mai__btn {
    max-width: 100%;
    box-sizing: border-box;
    white-space: normal;
    word-wrap: break-word;
  }
  .page-khuyen-mai__hero-actions {
    flex-direction: column;
    align-items: center;
    width: 100%;
    max-width: 100%;
    overflow: hidden;
    box-sizing: border-box;
  }
  .page-khuyen-mai__cta-btn {
    display: block;
    width: 100%;
    max-width: 100%;
    box-sizing: border-box;
    white-space: normal;
    word-wrap: break-word;
  }
  .page-khuyen-mai img {
    max-width: 100%;
    height: auto;
  }
  .page-khuyen-mai {
    max-width: 100%;
    overflow-x: hidden;
  }
  .page-khuyen-mai__section-title {
    font-size: 20px;
  }
}