.page-khuyen-mai {
  color: #333333;
  background-color: #F4F7FB;
}

.page-khuyen-mai__hero-section {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding-top: 10px;
  background: linear-gradient(135deg, #F4F7FB 0%, #E8F0FF 100%);
}

.page-khuyen-mai__hero-image-wrapper {
  width: 100%;
  max-width: 1200px;
}

.page-khuyen-mai__hero-image {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  display: block;
  border-radius: 12px;
}

.page-khuyen-mai__hero-content {
  max-width: 900px;
  text-align: center;
  padding: 24px 16px 32px;
}

.page-khuyen-mai__hero-title {
  color: #1F2D3D;
  font-weight: 800;
  line-height: 1.2;
  letter-spacing: -0.02em;
  margin: 0 0 12px;
}

.page-khuyen-mai__hero-description {
  color: #1F2D3D;
  font-size: 1.1rem;
  line-height: 1.6;
  margin: 0 0 24px;
}

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

.page-khuyen-mai__btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 10px 28px;
  border-radius: 8px;
  font-weight: 700;
  text-decoration: none;
  border: none;
  cursor: pointer;
  transition: opacity 0.2s ease, transform 0.2s ease;
  box-sizing: border-box;
}

.page-khuyen-mai__btn--primary {
  background: linear-gradient(180deg, #4A8BFF 0%, #2F6BFF 100%);
  color: #ffffff;
  box-shadow: 0 4px 16px rgba(47, 107, 255, 0.35);
}

.page-khuyen-mai__btn--primary:hover {
  opacity: 0.9;
  transform: translateY(-2px);
}

.page-khuyen-mai__btn--secondary {
  background: #ffffff;
  color: #2F6BFF;
  border: 2px solid #D6E2FF;
}

.page-khuyen-mai__btn--secondary:hover {
  background: #F0F5FF;
  border-color: #6FA3FF;
}

.page-khuyen-mai__btn--promo {
  background: linear-gradient(180deg, #4A8BFF 0%, #2F6BFF 100%);
  color: #ffffff;
  align-self: flex-start;
  margin-top: 12px;
}

.page-khuyen-mai__promo-section {
  padding: 40px 16px;
}

.page-khuyen-mai__promo-list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
  max-width: 1200px;
  margin: 0 auto;
}

.page-khuyen-mai__promo-card {
  background: #FFFFFF;
  border: 1px solid #D6E2FF;
  border-radius: 16px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  box-shadow: 0 4px 20px rgba(111, 163, 255, 0.15);
}

.page-khuyen-mai__promo-image-wrapper {
  width: 100%;
}

.page-khuyen-mai__promo-image {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  display: block;
}

.page-khuyen-mai__promo-content {
  padding: 20px;
  display: flex;
  flex-direction: column;
  flex: 1;
}

.page-khuyen-mai__promo-title {
  color: #1F2D3D;
  font-size: 1.4rem;
  margin: 0 0 10px;
}

.page-khuyen-mai__promo-text {
  color: #1F2D3D;
  line-height: 1.6;
  font-size: 1rem;
  margin: 0 0 12px;
  flex: 1;
}

.page-khuyen-mai__guide-section {
  background: linear-gradient(180deg, #F4F7FB 0%, #FFFFFF 100%);
  padding: 40px 16px;
}

.page-khuyen-mai__guide-inner {
  max-width: 1000px;
  margin: 0 auto;
  text-align: center;
}

.page-khuyen-mai__guide-title {
  color: #1F2D3D;
  font-size: 2rem;
  margin-bottom: 12px;
}

.page-khuyen-mai__guide-intro {
  color: #1F2D3D;
  font-size: 1.1rem;
  line-height: 1.6;
  margin-bottom: 32px;
}

.page-khuyen-mai__guide-steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  text-align: left;
}

.page-khuyen-mai__guide-step {
  background: #FFFFFF;
  border: 1px solid #D6E2FF;
  border-radius: 12px;
  padding: 24px 20px;
  display: flex;
  gap: 14px;
}

.page-khuyen-mai__guide-step-number {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: #2F6BFF;
  color: #ffffff;
  font-weight: 800;
  font-size: 1.2rem;
  flex-shrink: 0;
}

.page-khuyen-mai__guide-step-title {
  color: #1F2D3D;
  font-size: 1.15rem;
  margin: 0 0 6px;
}

.page-khuyen-mai__guide-step-text {
  color: #1F2D3D;
  font-size: 0.95rem;
  line-height: 1.5;
  margin: 0;
}

.page-khuyen-mai__guide-cta {
  margin-top: 32px;
  width: 100%;
  max-width: 100%;
  overflow: hidden;
  box-sizing: border-box;
}

.page-khuyen-mai__terms-section {
  padding: 40px 16px;
}

.page-khuyen-mai__terms-inner {
  max-width: 900px;
  margin: 0 auto;
  background: #FFFFFF;
  border: 1px solid #D6E2FF;
  border-radius: 16px;
  padding: 32px;
}

.page-khuyen-mai__terms-title {
  color: #1F2D3D;
  font-size: 1.8rem;
  margin-bottom: 16px;
}

.page-khuyen-mai__terms-text {
  color: #1F2D3D;
  line-height: 1.6;
  margin-bottom: 16px;
}

.page-khuyen-mai__terms-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.page-khuyen-mai__terms-item {
  color: #1F2D3D;
  padding: 8px 0;
  border-bottom: 1px solid #F4F7FB;
  line-height: 1.5;
}

.page-khuyen-mai__terms-item:last-child {
  border-bottom: none;
}

.page-khuyen-mai__faq-section {
  padding: 40px 16px;
  background: #FFFFFF;
}

.page-khuyen-mai__faq-inner {
  max-width: 900px;
  margin: 0 auto;
}

.page-khuyen-mai__faq-title {
  color: #1F2D3D;
  font-size: 1.8rem;
  text-align: center;
  margin-bottom: 24px;
}

.page-khuyen-mai__faq-item {
  background: #F4F7FB;
  border: 1px solid #D6E2FF;
  border-radius: 12px;
  margin-bottom: 12px;
  overflow: hidden;
}

.page-khuyen-mai__faq-question {
  color: #1F2D3D;
  padding: 16px 20px;
  font-weight: 700;
  display: flex;
  justify-content: space-between;
  align-items: center;
  cursor: pointer;
  list-style: none;
}

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

.page-khuyen-mai__faq-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: #2F6BFF;
  color: #ffffff;
  font-size: 1.2rem;
  font-weight: 700;
}

.page-khuyen-mai__faq-answer {
  padding: 0 20px 16px;
  color: #1F2D3D;
  line-height: 1.6;
}

@media (max-width: 1024px) {
  .page-khuyen-mai__promo-list {
    grid-template-columns: 1fr;
  }

  .page-khuyen-mai__guide-steps {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .page-khuyen-mai__hero-section {
    padding-top: 8px;
  }

  .page-khuyen-mai__hero-image {
    aspect-ratio: 2 / 1;
  }

  .page-khuyen-mai__hero-content {
    padding: 16px 12px 24px;
  }

  .page-khuyen-mai__hero-description {
    font-size: 1rem;
  }

  .page-khuyen-mai__hero-actions {
    flex-direction: column;
    align-items: center;
  }

  .page-khuyen-mai__btn {
    width: 100%;
    max-width: 100%;
    box-sizing: border-box;
    white-space: normal;
    word-wrap: break-word;
  }

  .page-khuyen-mai__promo-section {
    padding: 24px 12px;
  }

  .page-khuyen-mai__promo-list {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .page-khuyen-mai__promo-card {
    border-radius: 12px;
  }

  .page-khuyen-mai__promo-content {
    padding: 16px;
  }

  .page-khuyen-mai__guide-section {
    padding: 24px 12px;
  }

  .page-khuyen-mai__guide-title {
    font-size: 1.5rem;
  }

  .page-khuyen-mai__guide-steps {
    grid-template-columns: 1fr;
  }

  .page-khuyen-mai__guide-step {
    flex-direction: column;
    align-items: flex-start;
    padding: 16px;
  }

  .page-khuyen-mai__terms-section {
    padding: 24px 12px;
  }

  .page-khuyen-mai__terms-inner {
    padding: 24px 16px;
  }

  .page-khuyen-mai__faq-section {
    padding: 24px 12px;
  }

  .page-khuyen-mai img {
    max-width: 100% !important;
    height: auto !important;
  }
}