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

.page-khuyen-mai__hero-section {
  position: relative;
  padding-top: 10px; /* Fixed header spacing */
  background-color: #f0f8ff;
  overflow: hidden;
}

.page-khuyen-mai__hero-image-wrapper {
  width: 100%;
  height: auto;
  display: block;
}

.page-khuyen-mai__hero-image {
  width: 100%;
  height: auto;
  display: block;
  object-fit: cover;
}

.page-khuyen-mai__hero-content {
  position: relative;
  text-align: center;
  padding: 40px 20px;
  background-color: #FFFFFF;
  box-shadow: 0 -5px 15px rgba(0, 0, 0, 0.05);
  border-radius: 10px 10px 0 0;
  margin-top: -50px;
  z-index: 10;
}

.page-khuyen-mai__main-title {
  font-size: clamp(2em, 4vw, 2.8em);
  font-weight: 700;
  color: #26A9E0;
  margin-bottom: 15px;
  line-height: 1.2;
}

.page-khuyen-mai__description {
  font-size: 1.1em;
  margin-bottom: 30px;
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
}

.page-khuyen-mai__cta-buttons {
  display: flex;
  gap: 15px;
  justify-content: center;
  flex-wrap: wrap;
}

.page-khuyen-mai__btn {
  display: inline-block;
  padding: 12px 25px;
  border-radius: 8px;
  text-decoration: none;
  font-weight: 600;
  font-size: 1.05em;
  transition: background-color 0.3s ease, transform 0.3s ease;
  max-width: 100%;
  box-sizing: border-box;
  white-space: normal;
  word-wrap: break-word;
  text-align: center;
}

.page-khuyen-mai__btn-primary {
  background-color: #26A9E0;
  color: #FFFFFF;
  border: 2px solid #26A9E0;
}

.page-khuyen-mai__btn-primary:hover {
  background-color: #1a8ccb;
  transform: translateY(-2px);
}

.page-khuyen-mai__btn-secondary {
  background-color: #FFFFFF;
  color: #26A9E0;
  border: 2px solid #26A9E0;
}

.page-khuyen-mai__btn-secondary:hover {
  background-color: #e0f4ff;
  transform: translateY(-2px);
}

.page-khuyen-mai__btn-small {
  padding: 8px 18px;
  font-size: 0.95em;
}

.page-khuyen-mai__btn-link {
  background: none;
  color: #26A9E0;
  border: 1px solid #26A9E0;
  padding: 8px 18px;
  font-size: 0.95em;
}

.page-khuyen-mai__btn-link:hover {
  background-color: #26A9E0;
  color: #FFFFFF;
}

.page-khuyen-mai__content-wrapper {
  padding: 40px 0;
  max-width: 1150px;
  margin: 0 auto;
}

.page-khuyen-mai__section {
  margin-bottom: 60px;
  padding: 0 20px;
}

.page-khuyen-mai__section-title {
  font-size: clamp(1.8em, 3.5vw, 2.5em);
  color: #26A9E0;
  text-align: center;
  margin-bottom: 30px;
  font-weight: 700;
}

.page-khuyen-mai p {
  margin-bottom: 15px;
  font-size: 1.05em;
  color: #333333;
}

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

.page-khuyen-mai__promo-card {
  background-color: #FFFFFF;
  border-radius: 12px;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.08);
  padding: 25px;
  text-align: center;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  align-items: center;
}

.page-khuyen-mai__promo-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.12);
}

.page-khuyen-mai__card-image {
  width: 100%;
  height: 200px;
  object-fit: cover;
  border-radius: 8px;
  margin-bottom: 20px;
  display: block;
}

.page-khuyen-mai__card-title {
  font-size: 1.4em;
  color: #26A9E0;
  margin-bottom: 10px;
  font-weight: 600;
}

.page-khuyen-mai__card-description {
  font-size: 0.95em;
  color: #555555;
  margin-bottom: 20px;
  flex-grow: 1;
}

.page-khuyen-mai__step-by-step {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 30px;
  margin-top: 30px;
}

.page-khuyen-mai__step-item {
  background-color: #FFFFFF;
  border-radius: 12px;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.08);
  padding: 30px;
  text-align: center;
}

.page-khuyen-mai__step-number {
  width: 60px;
  height: 60px;
  background-color: #26A9E0;
  color: #FFFFFF;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2em;
  font-weight: 700;
  margin: 0 auto 20px auto;
}

.page-khuyen-mai__step-title {
  font-size: 1.5em;
  color: #26A9E0;
  margin-bottom: 15px;
  font-weight: 600;
}

.page-khuyen-mai__dark-section {
  background-color: #26A9E0;
  color: #FFFFFF;
  padding: 60px 20px;
  border-radius: 12px;
  margin-bottom: 60px;
}

.page-khuyen-mai__dark-section .page-khuyen-mai__section-title {
  color: #FFFFFF;
}

.page-khuyen-mai__dark-text {
  color: #e0f4ff;
}

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

.page-khuyen-mai__info-box {
  background-color: rgba(255, 255, 255, 0.15);
  border-radius: 10px;
  padding: 25px;
  text-align: center;
  border: 1px solid rgba(255, 255, 255, 0.3);
}

.page-khuyen-mai__box-title {
  font-size: 1.3em;
  color: #FFFFFF;
  margin-bottom: 10px;
  font-weight: 600;
}

.page-khuyen-mai__advantage-list {
  list-style: none;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 30px;
  margin-top: 30px;
}

.page-khuyen-mai__advantage-item {
  background-color: #FFFFFF;
  border-radius: 12px;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.08);
  padding: 30px;
  text-align: center;
}

.page-khuyen-mai__advantage-title {
  font-size: 1.4em;
  color: #26A9E0;
  margin-bottom: 10px;
  font-weight: 600;
}

.page-khuyen-mai__final-cta {
  text-align: center;
  margin-top: 50px;
}

/* Common image and container responsive styles */
.page-khuyen-mai img {
  max-width: 100%;
  height: auto;
  display: block;
}

.page-khuyen-mai__section,
.page-khuyen-mai__promo-card,
.page-khuyen-mai__step-item,
.page-khuyen-mai__info-box,
.page-khuyen-mai__advantage-item {
  width: 100%;
  max-width: 100%;
  box-sizing: border-box;
  overflow: hidden;
}

/* Mobile responsiveness */
@media (max-width: 768px) {
  .page-khuyen-mai {
    font-size: 15px;
    line-height: 1.5;
  }

  /* 顶区标题 + 双 CTA */
  .page-khuyen-mai__hero-section {
    padding-top: 10px !important;
  }

  .page-khuyen-mai__hero-content {
    padding: 30px 15px;
    margin-top: -30px;
  }

  .page-khuyen-mai__main-title {
    font-size: 2em;
  }

  .page-khuyen-mai__description {
    font-size: 1em;
    margin-bottom: 20px;
  }

  .page-khuyen-mai__cta-buttons {
    flex-direction: column;
    gap: 10px;
  }

  .page-khuyen-mai__btn {
    max-width: 100% !important;
    width: 100% !important;
    padding-left: 15px;
    padding-right: 15px;
    font-size: 1em;
  }

  /* 单栏长文容器 */
  .page-khuyen-mai__content-wrapper {
    padding: 30px 0;
  }

  .page-khuyen-mai__section {
    padding: 0 15px;
    margin-bottom: 40px;
  }

  .page-khuyen-mai__section-title {
    font-size: 1.8em;
    margin-bottom: 25px;
  }

  .page-khuyen-mai p {
    font-size: 0.95em;
  }

  /* 通用图片与 figure */
  .page-khuyen-mai img {
    max-width: 100% !important;
    width: 100% !important;
    height: auto !important;
  }

  .page-khuyen-mai__promo-card,
  .page-khuyen-mai__step-item,
  .page-khuyen-mai__info-box,
  .page-khuyen-mai__advantage-item {
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
    padding-left: 20px;
    padding-right: 20px;
  }

  .page-khuyen-mai__card-image {
    height: 180px;
  }

  .page-khuyen-mai__promo-grid,
  .page-khuyen-mai__step-by-step,
  .page-khuyen-mai__info-grid,
  .page-khuyen-mai__advantage-list {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .page-khuyen-mai__dark-section {
    padding: 40px 15px;
  }

  .page-khuyen-mai__card-title,
  .page-khuyen-mai__step-title,
  .page-khuyen-mai__box-title,
  .page-khuyen-mai__advantage-title {
    font-size: 1.2em;
  }

  .page-khuyen-mai__final-cta {
    margin-top: 30px;
  }
}