.page-khuyen-mai-hoan-tra {
  font-family: Arial, sans-serif;
  line-height: 1.6;
  color: #FFF5E1; /* Text Main */
  background-color: #B71C1C; /* Body Background */
}

.page-khuyen-mai-hoan-tra__article-wrap {
  max-width: 1150px;
  margin: 0 auto;
  padding: 20px;
  box-sizing: border-box;
}

.page-khuyen-mai-hoan-tra__hero-section {
  background-color: #C91F17; /* Main Color */
  padding-bottom: 40px;
  text-align: center;
  overflow: hidden;
}

.page-khuyen-mai-hoan-tra__hero-image-wrapper {
  width: 100%;
  overflow: hidden;
  margin-bottom: 20px;
}

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

.page-khuyen-mai-hoan-tra__hero-content {
  max-width: 900px;
  margin: 0 auto;
  padding: 0 20px;
}

.page-khuyen-mai-hoan-tra__main-title {
  font-size: clamp(2.5em, 5vw, 3.2em);
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: 15px;
  color: #F4D34D; /* Gold */
  text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
}

.page-khuyen-mai-hoan-tra__description {
  font-size: 1.1em;
  margin-bottom: 30px;
  color: #FFF5E1;
}

.page-khuyen-mai-hoan-tra__cta-buttons {
  display: flex;
  gap: 15px;
  justify-content: center;
  flex-wrap: wrap;
  width: 100%;
  max-width: 600px;
  margin: 0 auto;
  box-sizing: border-box;
}

.page-khuyen-mai-hoan-tra__btn {
  display: inline-block;
  padding: 12px 25px;
  border-radius: 8px;
  text-decoration: none;
  font-weight: bold;
  font-size: 1.1em;
  transition: all 0.3s ease;
  box-sizing: border-box;
  max-width: 100%;
  white-space: normal;
  word-wrap: break-word;
}

.page-khuyen-mai-hoan-tra__btn-primary {
  background: linear-gradient(180deg, #FFD86A 0%, #E6B800 100%);
  color: #7A0E0E; /* Deep Red for contrast */
  border: 2px solid #F2B544; /* Border */
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.3);
}

.page-khuyen-mai-hoan-tra__btn-primary:hover {
  background: linear-gradient(180deg, #E6B800 0%, #FFD86A 100%);
  transform: translateY(-2px);
  box-shadow: 0 6px 15px rgba(0, 0, 0, 0.4);
}

.page-khuyen-mai-hoan-tra__btn-secondary {
  background-color: #7A0E0E; /* Deep Red */
  color: #FFF5E1; /* Text Main */
  border: 2px solid #F2B544; /* Border */
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.3);
}

.page-khuyen-mai-hoan-tra__btn-secondary:hover {
  background-color: #E53935; /* Auxiliary Color */
  transform: translateY(-2px);
  box-shadow: 0 6px 15px rgba(0, 0, 0, 0.4);
}

.page-khuyen-mai-hoan-tra__section {
  padding: 40px 0;
  background-color: #B71C1C; /* Background */
  color: #FFF5E1;
}

.page-khuyen-mai-hoan-tra__section-title {
  font-size: 2.2em;
  font-weight: 700;
  text-align: center;
  margin-bottom: 30px;
  color: #F4D34D; /* Gold */
  text-shadow: 1px 1px 3px rgba(0, 0, 0, 0.4);
}

.page-khuyen-mai-hoan-tra__text-block {
  margin-bottom: 1em;
  font-size: 1.05em;
  color: #FFF5E1;
}

.page-khuyen-mai-hoan-tra__list {
  list-style: disc;
  margin-left: 25px;
  margin-bottom: 1.5em;
  color: #FFF5E1;
}

.page-khuyen-mai-hoan-tra__numbered-list {
  list-style: decimal;
  margin-left: 25px;
  margin-bottom: 1.5em;
  color: #FFF5E1;
}

.page-khuyen-mai-hoan-tra__list-item {
  margin-bottom: 0.8em;
  color: #FFF5E1;
}

.page-khuyen-mai-hoan-tra__figure {
  margin: 30px auto;
  max-width: 680px;
  text-align: center;
}

.page-khuyen-mai-hoan-tra__image-content {
  width: 100%;
  height: auto;
  display: block;
  border-radius: 8px;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
}

.page-khuyen-mai-hoan-tra__figcaption {
  font-size: 0.9em;
  color: #FFF5E1;
  margin-top: 10px;
  opacity: 0.8;
}

.page-khuyen-mai-hoan-tra__link {
  color: #FFD86A; /* Lighter gold for links */
  text-decoration: underline;
  transition: color 0.3s ease;
}

.page-khuyen-mai-hoan-tra__link:hover {
  color: #F4D34D;
}

.page-khuyen-mai-hoan-tra__faq-list {
  margin-top: 30px;
}

.page-khuyen-mai-hoan-tra__faq-item {
  background-color: #D32F2F; /* Card BG */
  border: 1px solid #F2B544; /* Border */
  border-radius: 8px;
  margin-bottom: 15px;
  overflow: hidden;
  color: #FFF5E1;
}

.page-khuyen-mai-hoan-tra__faq-question {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 15px 20px;
  cursor: pointer;
  font-weight: bold;
  font-size: 1.1em;
  color: #FFF5E1;
  list-style: none;
  user-select: none;
}

.page-khuyen-mai-hoan-tra__faq-question::-webkit-details-marker {
  display: none;
}

.page-khuyen-mai-hoan-tra__faq-toggle {
  font-size: 1.5em;
  line-height: 1;
  color: #F4D34D; /* Gold */
  transition: transform 0.3s ease;
}

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

.page-khuyen-mai-hoan-tra__faq-answer {
  padding: 0 20px 15px;
  font-size: 1em;
  color: #FFF5E1;
  line-height: 1.5;
}

.page-khuyen-mai-hoan-tra__faq-answer p {
  margin-bottom: 0;
}

.page-khuyen-mai-hoan-tra__cta-section {
  background-color: #7A0E0E; /* Deep Red */
  padding: 50px 20px;
  text-align: center;
  color: #FFF5E1;
}

.page-khuyen-mai-hoan-tra__cta-section .page-khuyen-mai-hoan-tra__section-title {
  margin-bottom: 20px;
}

.page-khuyen-mai-hoan-tra__cta-section .page-khuyen-mai-hoan-tra__description {
  margin-bottom: 40px;
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
}

/* Desktop specific adjustments */
@media (min-width: 769px) {
  .page-khuyen-mai-hoan-tra__hero-section {
    padding-top: 10px; /* Small top padding, body handles --header-offset */
  }
}

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

  /* 1. Top Section / Hero */
  .page-khuyen-mai-hoan-tra__hero-section {
    padding-top: 10px !important; /* Small top padding for mobile */
    padding-bottom: 20px;
  }

  .page-khuyen-mai-hoan-tra__main-title {
    font-size: 2.2em;
    margin-bottom: 10px;
  }

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

  /* 4. Buttons and Button Containers */
  .page-khuyen-mai-hoan-tra__cta-buttons {
    flex-direction: column;
    gap: 10px;
    padding: 0 15px;
  }

  .page-khuyen-mai-hoan-tra__btn {
    width: 100% !important;
    max-width: 100% !important;
    padding: 12px 15px;
    font-size: 1em;
    white-space: normal !important;
    word-wrap: break-word !important;
  }

  /* 2. Single Column Long Text Container */
  .page-khuyen-mai-hoan-tra__article-wrap {
    padding: 15px;
    width: 100% !important;
    max-width: 100% !important;
    box-sizing: border-box !important;
  }

  .page-khuyen-mai-hoan-tra__section-title {
    font-size: 1.8em;
    margin-bottom: 20px;
  }

  .page-khuyen-mai-hoan-tra__text-block {
    font-size: 1em;
  }

  .page-khuyen-mai-hoan-tra__list,
  .page-khuyen-mai-hoan-tra__numbered-list {
    margin-left: 20px;
  }

  .page-khuyen-mai-hoan-tra__list-item {
    font-size: 1em;
  }

  /* 3. General Images and Figure */
  .page-khuyen-mai-hoan-tra__figure {
    margin: 20px auto;
    width: 100% !important;
    max-width: 100% !important;
    box-sizing: border-box !important;
    padding: 0 15px;
  }

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

  .page-khuyen-mai-hoan-tra__figcaption {
    font-size: 0.85em;
  }

  /* 5. FAQ Block */
  .page-khuyen-mai-hoan-tra__faq-item {
    margin-bottom: 10px;
  }

  .page-khuyen-mai-hoan-tra__faq-question {
    padding: 12px 15px;
    font-size: 1em;
  }

  .page-khuyen-mai-hoan-tra__faq-answer {
    padding: 0 15px 12px;
    font-size: 0.95em;
  }

  .page-khuyen-mai-hoan-tra__cta-section {
    padding: 30px 15px;
  }

  .page-khuyen-mai-hoan-tra__cta-section .page-khuyen-mai-hoan-tra__description {
    font-size: 1em;
  }
}