.page-khuyen-mai {
  --primary-color: #11A84E;
  --secondary-color: #22C768;
  --text-main: #F2FFF6;
  --text-secondary: #A7D9B8;
  --bg-dark: #08160F;
  --card-bg: #11271B;
  --border-color: #2E7A4E;
  --glow-color: #57E38D;
  --gold-color: #F2C14E;
  --divider-color: #1E3A2A;
  --deep-green-bg: #0A4B2C;
  color: var(--text-main);
  background-color: var(--bg-dark);
  font-family: Arial, sans-serif;
  line-height: 1.6;
}

.page-khuyen-mai__hero-section {
  padding-top: 10px; /* Aligns with shared body padding-top */
  position: relative;
  text-align: center;
  padding-bottom: 40px;
  background-color: var(--deep-green-bg);
  border-bottom: 2px solid var(--divider-color);
}

.page-khuyen-mai__hero-image-wrapper {
  max-width: 100%;
  overflow: hidden;
}

.page-khuyen-mai__hero-image {
  width: 100%;
  height: auto;
  display: block;
  object-fit: cover;
  border-radius: 8px;
  margin: 0 auto 20px auto;
  max-width: 1200px; /* Adjust based on typical hero image width for content pages */
}

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

.page-khuyen-mai__main-title {
  color: var(--gold-color);
  font-weight: bold;
  line-height: 1.2;
  margin-bottom: 15px;
  letter-spacing: 0.5px;
  text-shadow: 0 0 8px rgba(242, 193, 78, 0.5);
}

.page-khuyen-mai__description {
  color: var(--text-secondary);
  font-size: 1.1em;
  margin-bottom: 30px;
}

.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: 30px;
  text-decoration: none;
  font-weight: bold;
  transition: all 0.3s ease;
  cursor: pointer;
  max-width: 100%;
  box-sizing: border-box;
  white-space: normal;
  word-wrap: break-word;
}

.page-khuyen-mai__btn-primary {
  background: linear-gradient(180deg, #2AD16F 0%, #13994A 100%);
  color: var(--text-main);
  border: none;
  box-shadow: 0 4px 15px rgba(17, 168, 78, 0.4);
}

.page-khuyen-mai__btn-primary:hover {
  background: linear-gradient(180deg, #13994A 0%, #2AD16F 100%);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(17, 168, 78, 0.6);
}

.page-khuyen-mai__btn-secondary {
  background: var(--card-bg);
  color: var(--gold-color);
  border: 2px solid var(--gold-color);
}

.page-khuyen-mai__btn-secondary:hover {
  background: var(--gold-color);
  color: var(--bg-dark);
  transform: translateY(-2px);
}

.page-khuyen-mai__section {
  padding: 50px 0;
  border-bottom: 1px solid var(--divider-color);
}

.page-khuyen-mai__section:last-of-type {
  border-bottom: none;
}

.page-khuyen-mai__article-wrap {
  max-width: 1150px;
  margin: 0 auto;
  padding: 0 20px;
}

.page-khuyen-mai__section-title {
  color: var(--gold-color);
  font-size: 2.2em;
  text-align: center;
  margin-bottom: 40px;
  text-shadow: 0 0 5px rgba(242, 193, 78, 0.3);
}

.page-khuyen-mai__text-block {
  color: var(--text-secondary);
  font-size: 1.05em;
  margin-bottom: 30px;
  text-align: justify;
}

.page-khuyen-mai__promo-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 30px;
  margin-top: 40px;
}

.page-khuyen-mai__promo-card {
  background-color: var(--card-bg);
  border-radius: 10px;
  padding: 25px;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  border: 1px solid var(--border-color);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.page-khuyen-mai__promo-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.3);
}

.page-khuyen-mai__promo-image {
  width: 100%;
  height: 200px;
  object-fit: cover;
  border-radius: 8px;
  margin-bottom: 20px;
  border: 1px solid var(--divider-color);
}

.page-khuyen-mai__promo-card-title {
  color: var(--text-main);
  font-size: 1.4em;
  margin-bottom: 10px;
}

.page-khuyen-mai__promo-card-description {
  color: var(--text-secondary);
  font-size: 0.95em;
  margin-bottom: 20px;
  flex-grow: 1;
}

.page-khuyen-mai__btn-card {
  margin-top: auto;
  background: linear-gradient(180deg, #2AD16F 0%, #13994A 100%);
  color: var(--text-main);
  border: none;
}

.page-khuyen-mai__btn-card:hover {
  background: linear-gradient(180deg, #13994A 0%, #2AD16F 100%);
  transform: translateY(-2px);
}

.page-khuyen-mai__steps-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 30px;
  margin-top: 40px;
}

.page-khuyen-mai__step-card {
  background-color: var(--card-bg);
  border-radius: 10px;
  padding: 30px;
  text-align: center;
  border: 1px solid var(--border-color);
}

.page-khuyen-mai__step-icon {
  width: 60px;
  height: 60px;
  background-color: var(--primary-color);
  color: var(--text-main);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2em;
  font-weight: bold;
  margin: 0 auto 20px auto;
  box-shadow: 0 0 15px rgba(17, 168, 78, 0.5);
}

.page-khuyen-mai__step-title {
  color: var(--gold-color);
  font-size: 1.3em;
  margin-bottom: 15px;
}

.page-khuyen-mai__step-card p {
  color: var(--text-secondary);
  font-size: 0.95em;
}

.page-khuyen-mai__info-card {
  background-color: var(--deep-green-bg);
  border-radius: 10px;
  padding: 30px;
  margin-top: 50px;
  text-align: center;
  border: 1px solid var(--border-color);
  box-shadow: 0 5px 20px rgba(0, 0, 0, 0.2);
}

.page-khuyen-mai__info-card-title {
  color: var(--gold-color);
  font-size: 1.8em;
  margin-bottom: 15px;
}

.page-khuyen-mai__info-card p {
  color: var(--text-secondary);
  font-size: 1.05em;
  margin-bottom: 25px;
}

.page-khuyen-mai__btn-light {
  background-color: var(--text-main);
  color: var(--primary-color);
  border: none;
  padding: 10px 20px;
  border-radius: 25px;
  font-weight: bold;
}

.page-khuyen-mai__btn-light:hover {
  background-color: #e0e0e0;
  color: var(--primary-color);
  transform: translateY(-2px);
}

.page-khuyen-mai__feature-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__feature-item {
  background-color: var(--card-bg);
  border-radius: 10px;
  padding: 25px;
  border: 1px solid var(--border-color);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.page-khuyen-mai__feature-item:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.3);
}

.page-khuyen-mai__feature-title {
  color: var(--gold-color);
  font-size: 1.3em;
  margin-bottom: 10px;
}

.page-khuyen-mai__feature-item p {
  color: var(--text-secondary);
  font-size: 0.95em;
}

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

.page-khuyen-mai__faq-item {
  background-color: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  margin-bottom: 15px;
  overflow: hidden;
}

.page-khuyen-mai__faq-question {
  color: var(--text-main);
  font-size: 1.15em;
  padding: 18px 25px;
  cursor: pointer;
  position: relative;
  display: flex;
  justify-content: space-between;
  align-items: center;
  transition: background-color 0.3s ease;
}

.page-khuyen-mai__faq-question::after {
  content: '+';
  font-size: 1.5em;
  color: var(--gold-color);
  transition: transform 0.3s ease;
}

.page-khuyen-mai__faq-item.active .page-khuyen-mai__faq-question::after {
  content: '-';
  transform: rotate(180deg);
}

.page-khuyen-mai__faq-answer {
  color: var(--text-secondary);
  font-size: 1em;
  padding: 0 25px 18px 25px;
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.5s ease-out, padding 0.5s ease-out;
}

.page-khuyen-mai__faq-item.active .page-khuyen-mai__faq-answer {
  max-height: 500px; /* Sufficiently large to show content */
  padding-top: 10px;
}

.page-khuyen-mai__faq-answer p {
  margin-bottom: 0;
}

.page-khuyen-mai__cta-section {
  background-color: var(--deep-green-bg);
  text-align: center;
  padding: 60px 20px;
  margin-top: 50px;
  border-top: 2px solid var(--divider-color);
  border-bottom: 2px solid var(--divider-color);
}

.page-khuyen-mai__cta-title {
  color: var(--gold-color);
  font-size: 2.5em;
  margin-bottom: 20px;
  text-shadow: 0 0 10px rgba(242, 193, 78, 0.4);
}

.page-khuyen-mai__cta-description {
  color: var(--text-secondary);
  font-size: 1.15em;
  max-width: 800px;
  margin: 0 auto 40px auto;
}

/* General image styling for content area */
.page-khuyen-mai img {
  max-width: 100%;
  height: auto;
  display: block;
}

/* Responsive Styles */
@media (max-width: 1024px) {
  .page-khuyen-mai__hero-content {
    padding: 0 30px;
  }

  .page-khuyen-mai__main-title {
    font-size: 2.8em;
  }

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

  .page-khuyen-mai__promo-grid,
  .page-khuyen-mai__steps-grid,
  .page-khuyen-mai__feature-list {
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
  }

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

  .page-khuyen-mai__cta-title {
    font-size: 2.2em;
  }
}

@media (max-width: 768px) {
  /* 1. 顶区标题 + 双 CTA */
  .page-khuyen-mai__hero-section {
    padding-top: 10px !important;
    padding-bottom: 30px;
  }

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

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

  .page-khuyen-mai__cta-buttons {
    flex-direction: column;
    gap: 10px;
    padding: 0 15px;
  }

  .page-khuyen-mai__btn {
    width: 100% !important;
    max-width: 100% !important;
    padding: 12px 15px;
    white-space: normal !important;
    word-wrap: break-word !important;
  }

  /* 2. 单栏长文容器 */
  .page-khuyen-mai__article-wrap {
    padding: 0 15px;
  }

  .page-khuyen-mai__section {
    padding: 30px 0;
  }

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

  .page-khuyen-mai__text-block {
    font-size: 0.95em;
  }

  .page-khuyen-mai__promo-grid,
  .page-khuyen-mai__steps-grid,
  .page-khuyen-mai__feature-list {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .page-khuyen-mai__info-card {
    margin-top: 30px;
    padding: 20px;
  }

  .page-khuyen-mai__info-card-title {
    font-size: 1.5em;
  }

  .page-khuyen-mai__info-card p {
    font-size: 1em;
  }

  /* 3. 通用图片与 figure */
  .page-khuyen-mai img {
    max-width: 100% !important;
    width: 100% !important;
    height: auto !important;
  }

  .page-khuyen-mai__promo-image {
    height: auto;
    max-height: 180px;
  }

  .page-khuyen-mai__hero-image {
    height: auto;
    max-height: 300px;
  }

  .page-khuyen-mai__promo-card,
  .page-khuyen-mai__step-card,
  .page-khuyen-mai__feature-item,
  .page-khuyen-mai__faq-item {
    padding: 20px;
  }

  /* 4. 按钮与按钮容器 (already covered by .page-khuyen-mai__btn and .page-khuyen-mai__cta-buttons) */
  .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;
  }

  /* 5. FAQ 区块 */
  .page-khuyen-mai__faq-question {
    font-size: 1.05em;
    padding: 15px 20px;
  }

  .page-khuyen-mai__faq-answer {
    font-size: 0.95em;
    padding: 0 20px 15px 20px;
  }

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

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

  .page-khuyen-mai__cta-description {
    font-size: 1em;
    margin-bottom: 30px;
  }
}