.page-khuyen-mai {
  --primary-color: #F2C14E;
  --secondary-color: #FFD36B;
  --text-main-color: #FFF6D6;
  --card-bg-color: #111111;
  --background-color: #0A0A0A;
  --border-color: #3A2A12;
  --glow-color: #FFD36B;
  color: var(--text-main-color); /* Default text color for the page */
  background-color: var(--background-color);
}

.page-khuyen-mai__container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 20px 15px;
  box-sizing: border-box;
}

.page-khuyen-mai__hero-section {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  position: relative;
  text-align: center;
  padding-top: 10px; /* Small top padding, relying on body for header offset */
  padding-bottom: 50px;
  overflow: hidden;
}

.page-khuyen-mai__hero-image {
  width: 100%;
  height: auto;
  position: relative;
  z-index: 0;
  margin-bottom: 30px;
}

.page-khuyen-mai__hero-image img {
  width: 100%;
  height: 675px; /* Default height for 16:9 aspect ratio at 1200px width */
  object-fit: cover;
  display: block;
  border-radius: 8px;
}

.page-khuyen-mai__hero-content {
  position: relative;
  z-index: 1;
  max-width: 800px;
  padding: 0 15px;
  box-sizing: border-box;
}

.page-khuyen-mai__main-title {
  font-size: 48px;
  font-weight: 700;
  line-height: 1.2;
  color: var(--text-main-color);
  margin-bottom: 20px;
  text-shadow: 0 0 10px rgba(255, 211, 107, 0.5);
}

.page-khuyen-mai__description {
  font-size: 18px;
  line-height: 1.6;
  color: var(--text-main-color);
  margin-bottom: 30px;
}

.page-khuyen-mai__cta-button {
  display: inline-block;
  padding: 15px 30px;
  background: linear-gradient(180deg, #FFD86A 0%, #DDA11D 100%);
  color: #333333; /* Ensuring contrast against light gold gradient */
  font-size: 20px;
  font-weight: 700;
  text-decoration: none;
  border-radius: 50px;
  transition: all 0.3s ease;
  box-shadow: 0 5px 15px rgba(255, 211, 107, 0.4);
  max-width: 100%;
  box-sizing: border-box;
  white-space: normal;
  word-wrap: break-word;
}

.page-khuyen-mai__cta-button:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 20px rgba(255, 211, 107, 0.6);
}

.page-khuyen-mai__section-title {
  font-size: 38px;
  font-weight: 700;
  color: var(--text-main-color);
  text-align: center;
  margin-bottom: 40px;
  margin-top: 60px;
  text-shadow: 0 0 8px rgba(255, 211, 107, 0.3);
}

.page-khuyen-mai__text-block {
  font-size: 17px;
  line-height: 1.7;
  color: var(--text-main-color);
  margin-bottom: 30px;
  text-align: justify;
}

.page-khuyen-mai__intro-section, .page-khuyen-mai__types-section, .page-khuyen-mai__featured-section, .page-khuyen-mai__guide-section, .page-khuyen-mai__terms-conditions, .page-khuyen-mai__faq-section, .page-khuyen-mai__cta-bottom {
  padding: 40px 0;
}

.page-khuyen-mai__promo-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
  margin-top: 40px;
}

.page-khuyen-mai__promo-card {
  background-color: var(--card-bg-color);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  display: flex;
  flex-direction: column;
  color: var(--text-main-color);
}

.page-khuyen-mai__promo-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.5);
}

.page-khuyen-mai__promo-card img {
  width: 100%;
  height: 250px;
  object-fit: cover;
  display: block;
}

.page-khuyen-mai__card-title {
  font-size: 22px;
  font-weight: 600;
  color: var(--text-main-color);
  padding: 15px 20px 0;
  margin-bottom: 10px;
}

.page-khuyen-mai__card-description {
  font-size: 15px;
  line-height: 1.6;
  color: var(--text-main-color);
  padding: 0 20px 15px;
  flex-grow: 1;
}

.page-khuyen-mai__card-button {
  display: block;
  width: calc(100% - 40px);
  margin: 0 20px 20px;
  padding: 12px 0;
  text-align: center;
  background: var(--primary-color);
  color: #333333; /* Ensuring contrast */
  font-size: 16px;
  font-weight: 600;
  text-decoration: none;
  border-radius: 8px;
  transition: background-color 0.3s ease;
  max-width: 100%;
  box-sizing: border-box;
  white-space: normal;
  word-wrap: break-word;
}

.page-khuyen-mai__card-button:hover {
  background-color: var(--secondary-color);
}

.page-khuyen-mai__promo-list {
  margin-top: 40px;
}

.page-khuyen-mai__list-item {
  background-color: var(--card-bg-color);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  display: flex;
  margin-bottom: 30px;
  overflow: hidden;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
  color: var(--text-main-color);
}

.page-khuyen-mai__list-item img {
  width: 40%;
  height: auto;
  object-fit: cover;
  display: block;
}

.page-khuyen-mai__list-content {
  padding: 25px;
  width: 60%;
  box-sizing: border-box;
}

.page-khuyen-mai__list-title {
  font-size: 26px;
  font-weight: 600;
  color: var(--text-main-color);
  margin-bottom: 15px;
}

.page-khuyen-mai__list-description {
  font-size: 16px;
  line-height: 1.7;
  color: var(--text-main-color);
  margin-bottom: 20px;
  text-align: justify;
}

.page-khuyen-mai__list-button {
  display: inline-block;
  padding: 12px 25px;
  background: var(--primary-color);
  color: #333333; /* Ensuring contrast */
  font-size: 16px;
  font-weight: 600;
  text-decoration: none;
  border-radius: 8px;
  transition: background-color 0.3s ease;
  max-width: 100%;
  box-sizing: border-box;
  white-space: normal;
  word-wrap: break-word;
}

.page-khuyen-mai__list-button:hover {
  background-color: var(--secondary-color);
}

.page-khuyen-mai__guide-list {
  list-style: none;
  padding: 0;
  margin-top: 40px;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 25px;
}

.page-khuyen-mai__guide-list li {
  background-color: var(--card-bg-color);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 25px;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
  color: var(--text-main-color);
}

.page-khuyen-mai__guide-list h3 {
  font-size: 24px;
  font-weight: 600;
  color: var(--primary-color);
  margin-bottom: 15px;
}

.page-khuyen-mai__guide-list p {
  font-size: 16px;
  line-height: 1.7;
  color: var(--text-main-color);
}

.page-khuyen-mai__secondary-button {
  display: inline-block;
  padding: 12px 25px;
  background: none;
  border: 2px solid var(--primary-color);
  color: var(--text-main-color);
  font-size: 16px;
  font-weight: 600;
  text-decoration: none;
  border-radius: 8px;
  transition: all 0.3s ease;
  margin-top: 20px;
  max-width: 100%;
  box-sizing: border-box;
  white-space: normal;
  word-wrap: break-word;
}

.page-khuyen-mai__secondary-button:hover {
  background: var(--primary-color);
  color: #333333; /* Ensuring contrast */
}

/* FAQ Styles */
details.page-khuyen-mai__faq-item {
  margin-bottom: 15px;
  border-radius: 5px;
  border: 1px solid var(--border-color);
  overflow: hidden;
  background: var(--card-bg-color);
  color: var(--text-main-color);
}
details.page-khuyen-mai__faq-item summary.page-khuyen-mai__faq-question {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 18px 20px;
  cursor: pointer;
  user-select: none;
  list-style: none;
  transition: background-color 0.3s ease;
}
details.page-khuyen-mai__faq-item summary.page-khuyen-mai__faq-question::-webkit-details-marker {
  display: none;
}
details.page-khuyen-mai__faq-item summary.page-khuyen-mai__faq-question:hover {
  background: rgba(255, 255, 255, 0.05);
}
.page-khuyen-mai__faq-qtext {
  flex: 1;
  font-size: 16px;
  font-weight: 600;
  line-height: 1.5;
  text-align: left;
  color: var(--text-main-color);
}
.page-khuyen-mai__faq-toggle {
  font-size: 24px;
  font-weight: bold;
  color: var(--primary-color);
  flex-shrink: 0;
  margin-left: 15px;
  width: 28px;
  text-align: center;
}
details.page-khuyen-mai__faq-item .page-khuyen-mai__faq-answer {
  padding: 0 20px 20px;
  background: rgba(0, 0, 0, 0.2); /* Slightly lighter background for answer */
  border-radius: 0 0 5px 5px;
  color: var(--text-main-color);
}
details.page-khuyen-mai__faq-item .page-khuyen-mai__faq-answer p {
  margin: 0;
  font-size: 15px;
  line-height: 1.6;
}

/* General image responsiveness for all images in main content */
.page-khuyen-mai img {
  max-width: 100%;
  height: auto;
  display: block;
}

/* Responsive Styles */
@media (max-width: 1024px) {
  .page-khuyen-mai__hero-image img {
    height: 500px; /* Adjust height for larger tablets */
  }
  .page-khuyen-mai__main-title {
    font-size: 42px;
  }
  .page-khuyen-mai__section-title {
    font-size: 34px;
  }
  .page-khuyen-mai__promo-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 25px;
  }
  .page-khuyen-mai__list-item {
    flex-direction: column;
  }
  .page-khuyen-mai__list-item img,
  .page-khuyen-mai__list-content {
    width: 100%;
  }
  .page-khuyen-mai__list-item img {
    height: 300px;
  }
  .page-khuyen-mai__guide-list {
    gap: 20px;
  }
}

@media (max-width: 768px) {
  /* HERO 主图区域 */
  .page-khuyen-mai__hero-image img {
    object-fit: contain !important; /* Prevent cropping on mobile */
    aspect-ratio: unset !important; /* Remove fixed aspect ratio */
    height: auto !important; /* Allow height to adjust naturally */
    max-height: 300px; /* Max height to prevent overly large image */
  }
  .page-khuyen-mai__hero-section {
    padding-top: 10px; /* Small top padding on mobile */
    padding-bottom: 30px;
  }
  .page-khuyen-mai__main-title {
    font-size: clamp(28px, 8vw, 36px); /* Adaptive font size for H1 */
    margin-bottom: 15px;
  }
  .page-khuyen-mai__description {
    font-size: 16px;
    margin-bottom: 25px;
  }
  .page-khuyen-mai__cta-button {
    font-size: 18px;
    padding: 12px 25px;
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
    white-space: normal !important;
    word-wrap: break-word !important;
    margin-left: auto;
    margin-right: auto;
  }

  /* 通用图片与容器 */
  .page-khuyen-mai img {
    max-width: 100% !important;
    width: 100% !important;
    height: auto !important;
  }
  .page-khuyen-mai__container,
  .page-khuyen-mai__section,
  .page-khuyen-mai__card {
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
    padding-left: 15px;
    padding-right: 15px;
  }

  /* 产品展示图区域 (Promotions Grid) */
  .page-khuyen-mai__promo-grid {
    grid-template-columns: repeat(2, 1fr); /* 2 columns on mobile */
    gap: 15px;
    overflow-x: hidden; /* Prevent horizontal scroll */
  }
  .page-khuyen-mai__promo-card img {
    
  }
  .page-khuyen-mai__card-title {
    font-size: 18px;
    padding: 10px;
  }
  .page-khuyen-mai__card-description {
    font-size: 14px;
    padding: 0 10px 10px;
  }
  .page-khuyen-mai__card-button {
    margin: 0 10px 10px;
    padding: 10px 0;
    font-size: 15px;
    max-width: 100% !important;
    width: 100% !important;
  }

  /* 装饰主标题 + 长文 SEO 区 */
  .page-khuyen-mai__section-title {
    font-size: clamp(26px, 7vw, 32px);
    margin-top: 40px;
    margin-bottom: 30px;
  }
  .page-khuyen-mai__text-block {
    font-size: 15px;
    line-height: 1.6;
    margin-bottom: 20px;
    text-align: left;
  }
  .page-khuyen-mai__list-item {
    flex-direction: column;
    margin-bottom: 20px;
  }
  .page-khuyen-mai__list-item img {
    height: 200px;
  }
  .page-khuyen-mai__list-content {
    padding: 15px;
  }
  .page-khuyen-mai__list-title {
    font-size: 20px;
    margin-bottom: 10px;
  }
  .page-khuyen-mai__list-description {
    font-size: 14px;
    margin-bottom: 15px;
  }
  .page-khuyen-mai__list-button {
    font-size: 15px;
    padding: 10px 20px;
    max-width: 100% !important;
    width: 100% !important;
  }

  /* 按钮与按钮容器 */
  .page-khuyen-mai__cta-button,
  .page-khuyen-mai__secondary-button {
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
    white-space: normal !important;
    word-wrap: break-word !important;
    padding-left: 15px;
    padding-right: 15px;
  }
  .page-khuyen-mai__cta-buttons,
  .page-khuyen-mai__button-group,
  .page-khuyen-mai__btn-container {
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
    padding-left: 15px;
    padding-right: 15px;
    flex-wrap: wrap !important;
    gap: 10px;
    display: flex;
    flex-direction: column;
  }

  .page-khuyen-mai__guide-list {
    grid-template-columns: 1fr;
    gap: 15px;
  }
  .page-khuyen-mai__guide-list h3 {
    font-size: 20px;
  }
  .page-khuyen-mai__guide-list p {
    font-size: 15px;
  }
  details.page-khuyen-mai__faq-item summary.page-khuyen-mai__faq-question { padding: 15px; }
  .page-khuyen-mai__faq-qtext { font-size: 15px; }
  details.page-khuyen-mai__faq-item .page-khuyen-mai__faq-answer { padding: 0 15px 15px; }
  details.page-khuyen-mai__faq-item .page-khuyen-mai__faq-answer p { font-size: 14px; }
}