.page-blog-chi-tiet-khuyen-mai-b789-moi-nhat {
  font-family: Arial, sans-serif;
  line-height: 1.6;
  color: #F3F8FF; /* Text Main */
  background-color: #08162B; /* Deep Navy - body background */
}

.page-blog-chi-tiet-khuyen-mai-b789-moi-nhat__container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 15px;
  box-sizing: border-box;
}

.page-blog-chi-tiet-khuyen-mai-b789-moi-nhat__hero-section {
  position: relative;
  text-align: center;
  padding-top: 10px; /* Rely on body padding-top for header offset */
  margin-bottom: 40px;
}

.page-blog-chi-tiet-khuyen-mai-b789-moi-nhat__hero-image {
  width: 100%;
  height: auto;
  display: block;
  object-fit: cover;
  border-radius: 8px;
  margin-bottom: 20px;
}

.page-blog-chi-tiet-khuyen-mai-b789-moi-nhat__hero-content {
  padding: 20px;
  background: #10233F; /* Card B G */
  border-radius: 8px;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
  margin-top: -60px;
  position: relative;
  z-index: 1;
}

.page-blog-chi-tiet-khuyen-mai-b789-moi-nhat__main-title {
  font-size: 42px;
  font-weight: bold;
  color: #F2C14E; /* Gold */
  margin-bottom: 15px;
  line-height: 1.2;
  text-shadow: 0 0 8px rgba(242, 193, 78, 0.5);
}

.page-blog-chi-tiet-khuyen-mai-b789-moi-nhat__description {
  font-size: 18px;
  color: #AFC4E8; /* Text Secondary */
  margin-bottom: 30px;
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
}

.page-blog-chi-tiet-khuyen-mai-b789-moi-nhat__cta-button {
  display: inline-block;
  padding: 15px 30px;
  background: linear-gradient(180deg, #2B73F6 0%, #1144A6 100%);
  color: #ffffff;
  text-decoration: none;
  border-radius: 8px;
  font-size: 18px;
  font-weight: bold;
  transition: all 0.3s ease;
  border: none;
  cursor: pointer;
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.2);
  max-width: 100%;
  box-sizing: border-box;
  white-space: normal;
  word-wrap: break-word;
}

.page-blog-chi-tiet-khuyen-mai-b789-moi-nhat__cta-button:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 15px rgba(0, 0, 0, 0.3);
  opacity: 0.9;
}

.page-blog-chi-tiet-khuyen-mai-b789-moi-nhat__cta-button--secondary {
  background: #1B3357; /* Divider */
  color: #F3F8FF;
  border: 1px solid #244D84; /* Border */
}

.page-blog-chi-tiet-khuyen-mai-b789-moi-nhat__cta-button--secondary:hover {
  background: #244D84;
  color: #ffffff;
}

.page-blog-chi-tiet-khuyen-mai-b789-moi-nhat__section {
  padding: 40px 0;
  margin-bottom: 30px;
  border-bottom: 1px solid #1B3357; /* Divider */
}

.page-blog-chi-tiet-khuyen-mai-b789-moi-nhat__section:last-of-type {
  border-bottom: none;
}

.page-blog-chi-tiet-khuyen-mai-b789-moi-nhat__section-title {
  font-size: 32px;
  font-weight: bold;
  color: #F2C14E; /* Gold */
  text-align: center;
  margin-bottom: 30px;
  text-shadow: 0 0 5px rgba(242, 193, 78, 0.3);
}

.page-blog-chi-tiet-khuyen-mai-b789-moi-nhat p {
  font-size: 16px;
  color: #AFC4E8; /* Text Secondary */
  margin-bottom: 15px;
  text-align: justify;
}

.page-blog-chi-tiet-khuyen-mai-b789-moi-nhat p a {
  color: #1D5FD1; /* Auxiliary color */
  text-decoration: underline;
}

.page-blog-chi-tiet-khuyen-mai-b789-moi-nhat p a:hover {
  color: #4FA8FF; /* Glow */
}

.page-blog-chi-tiet-khuyen-mai-b789-moi-nhat__promo-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 25px;
}

.page-blog-chi-tiet-khuyen-mai-b789-moi-nhat__promo-card {
  background: #10233F; /* Card B G */
  border-radius: 10px;
  overflow: hidden;
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.4);
  display: flex;
  flex-direction: column;
  height: 100%;
}

.page-blog-chi-tiet-khuyen-mai-b789-moi-nhat__promo-image {
  width: 100%;
  height: 200px;
  object-fit: cover;
  display: block;
}

.page-blog-chi-tiet-khuyen-mai-b789-moi-nhat__promo-card h3 {
  font-size: 22px;
  color: #F3F8FF; /* Text Main */
  padding: 15px 20px 10px;
  margin: 0;
  flex-grow: 1;
}

.page-blog-chi-tiet-khuyen-mai-b789-moi-nhat__promo-card p {
  font-size: 15px;
  color: #AFC4E8; /* Text Secondary */
  padding: 0 20px 15px;
  margin: 0;
  text-align: left;
}

.page-blog-chi-tiet-khuyen-mai-b789-moi-nhat__card-button {
  display: block;
  width: calc(100% - 40px);
  margin: 0 20px 20px;
  padding: 12px 0;
  background: linear-gradient(180deg, #2B73F6 0%, #1144A6 100%);
  color: #ffffff;
  text-align: center;
  text-decoration: none;
  border-radius: 6px;
  font-size: 16px;
  font-weight: bold;
  transition: background 0.3s ease;
  max-width: 100%;
  box-sizing: border-box;
  white-space: normal;
  word-wrap: break-word;
}

.page-blog-chi-tiet-khuyen-mai-b789-moi-nhat__card-button:hover {
  opacity: 0.9;
}

.page-blog-chi-tiet-khuyen-mai-b789-moi-nhat__how-to-claim .page-blog-chi-tiet-khuyen-mai-b789-moi-nhat__container,
.page-blog-chi-tiet-khuyen-mai-b789-moi-nhat__terms-conditions .page-blog-chi-tiet-khuyen-mai-b789-moi-nhat__container {
  background: #10233F; /* Card B G */
  border-radius: 10px;
  padding: 30px;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
}

.page-blog-chi-tiet-khuyen-mai-b789-moi-nhat__steps-list,
.page-blog-chi-tiet-khuyen-mai-b789-moi-nhat__terms-list {
  list-style-type: decimal;
  color: #AFC4E8;
  margin-left: 25px;
  padding: 0;
  font-size: 16px;
}

.page-blog-chi-tiet-khuyen-mai-b789-moi-n7hat__terms-list {
  list-style-type: disc;
}

.page-blog-chi-tiet-khuyen-mai-b789-moi-nhat__steps-list li,
.page-blog-chi-tiet-khuyen-mai-b789-moi-nhat__terms-list li {
  margin-bottom: 10px;
  color: #F3F8FF; /* Text Main */
}

.page-blog-chi-tiet-khuyen-mai-b789-moi-nhat__steps-list li strong {
  color: #F2C14E; /* Gold */
}

/* FAQ styles */
details.page-blog-chi-tiet-khuyen-mai-b789-moi-nhat__faq-item {
  margin-bottom: 15px;
  border-radius: 5px;
  border: 1px solid #244D84; /* Border */
  overflow: hidden;
  background: #10233F; /* Card B G */
}

details.page-blog-chi-tiet-khuyen-mai-b789-moi-nhat__faq-item summary.page-blog-chi-tiet-khuyen-mai-b789-moi-nhat__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;
  color: #F3F8FF; /* Text Main */
  font-weight: 600;
}

details.page-blog-chi-tiet-khuyen-mai-b789-moi-nhat__faq-item summary.page-blog-chi-tiet-khuyen-mai-b789-moi-nhat__faq-question::-webkit-details-marker {
  display: none;
}

details.page-blog-chi-tiet-khuyen-mai-b789-moi-nhat__faq-item summary.page-blog-chi-tiet-khuyen-mai-b789-moi-nhat__faq-question:hover {
  background: #1B3357; /* Divider */
}

.page-blog-chi-tiet-khuyen-mai-b789-moi-nhat__faq-qtext {
  flex: 1;
  font-size: 16px;
  line-height: 1.5;
  text-align: left;
}

.page-blog-chi-tiet-khuyen-mai-b789-moi-nhat__faq-toggle {
  font-size: 24px;
  font-weight: bold;
  color: #F2C14E; /* Gold */
  flex-shrink: 0;
  margin-left: 15px;
  width: 28px;
  text-align: center;
}

details.page-blog-chi-tiet-khuyen-mai-b789-moi-nhat__faq-item .page-blog-chi-tiet-khuyen-mai-b789-moi-nhat__faq-answer {
  padding: 0 20px 20px;
  background: #08162B; /* Deep Navy */
  border-radius: 0 0 5px 5px;
  color: #AFC4E8; /* Text Secondary */
}

.page-blog-chi-tiet-khuyen-mai-b789-moi-nhat__cta-bottom {
  text-align: center;
  padding: 60px 0;
}

.page-blog-chi-tiet-khuyen-mai-b789-moi-nhat__cta-bottom .page-blog-chi-tiet-khuyen-mai-b789-moi-nhat__section-title {
  color: #F2C14E;
}

.page-blog-chi-tiet-khuyen-mai-b789-moi-nhat__button-group {
  display: flex;
  justify-content: center;
  gap: 20px;
  margin-top: 30px;
  width: 100%;
  max-width: 100%;
  box-sizing: border-box;
  overflow: hidden;
}

/* --- Responsive Styles --- */
@media (max-width: 1024px) {
  .page-blog-chi-tiet-khuyen-mai-b789-moi-nhat__main-title {
    font-size: 38px;
  }

  .page-blog-chi-tiet-khuyen-mai-b789-moi-nhat__description {
    font-size: 17px;
  }

  .page-blog-chi-tiet-khuyen-mai-b789-moi-nhat__section-title {
    font-size: 28px;
  }

  .page-blog-chi-tiet-khuyen-mai-b789-moi-nhat__promo-card h3 {
    font-size: 20px;
  }
}

@media (max-width: 768px) {
  /* 1. top-text / hero-section first block padding */
  .page-blog-chi-tiet-khuyen-mai-b789-moi-nhat__hero-section {
    padding-top: 10px;
    margin-bottom: 20px;
  }

  .page-blog-chi-tiet-khuyen-mai-b789-moi-nhat__container {
    padding: 0 10px;
  }

  .page-blog-chi-tiet-khuyen-mai-b789-moi-nhat__hero-content {
    margin-top: -40px;
    padding: 15px;
  }

  .page-blog-chi-tiet-khuyen-mai-b789-moi-nhat__main-title {
    font-size: 28px;
    margin-bottom: 10px;
  }

  .page-blog-chi-tiet-khuyen-mai-b789-moi-nhat__description {
    font-size: 15px;
    margin-bottom: 20px;
  }

  .page-blog-chi-tiet-khuyen-mai-b789-moi-nhat__cta-button {
    padding: 12px 20px;
    font-size: 16px;
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
    white-space: normal !important;
    word-wrap: break-word !important;
  }

  /* 2. Lading page dual column modules (promo-grid in this case) -> single column */
  .page-blog-chi-tiet-khuyen-mai-b789-moi-nhat__promo-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .page-blog-chi-tiet-khuyen-mai-b789-moi-nhat__section {
    padding: 30px 0;
  }

  .page-blog-chi-tiet-khuyen-mai-b789-moi-nhat__section-title {
    font-size: 24px;
    margin-bottom: 20px;
  }

  .page-blog-chi-tiet-khuyen-mai-b789-moi-nhat p {
    font-size: 15px;
  }

  .page-blog-chi-tiet-khuyen-mai-b789-moi-nhat__promo-card h3 {
    font-size: 18px;
    padding: 12px 15px 8px;
  }

  .page-blog-chi-tiet-khuyen-mai-b789-moi-nhat__promo-card p {
    font-size: 14px;
    padding: 0 15px 12px;
  }

  .page-blog-chi-tiet-khuyen-mai-b789-moi-nhat__card-button {
    width: calc(100% - 30px);
    margin: 0 15px 15px;
    padding: 10px 0;
    font-size: 15px;
    max-width: 100% !important;
    box-sizing: border-box !important;
    white-space: normal !important;
    word-wrap: break-word !important;
  }

  .page-blog-chi-tiet-khuyen-mai-b789-moi-nhat__how-to-claim .page-blog-chi-tiet-khuyen-mai-b789-moi-nhat__container,
  .page-blog-chi-tiet-khuyen-mai-b789-moi-nhat__terms-conditions .page-blog-chi-tiet-khuyen-mai-b789-moi-nhat__container {
    padding: 20px;
  }

  .page-blog-chi-tiet-khuyen-mai-b789-moi-nhat__steps-list,
  .page-blog-chi-tiet-khuyen-mai-b789-moi-nhat__terms-list {
    font-size: 15px;
    margin-left: 20px;
  }

  .page-blog-chi-tiet-khuyen-mai-b789-moi-nhat__steps-list li,
  .page-blog-chi-tiet-khuyen-mai-b789-moi-nhat__terms-list li {
    margin-bottom: 8px;
  }

  /* FAQ */
  details.page-blog-chi-tiet-khuyen-mai-b789-moi-nhat__faq-item summary.page-blog-chi-tiet-khuyen-mai-b789-moi-nhat__faq-question {
    padding: 15px;
  }
  .page-blog-chi-tiet-khuyen-mai-b789-moi-nhat__faq-qtext {
    font-size: 15px;
  }
  .page-blog-chi-tiet-khuyen-mai-b789-moi-nhat__faq-toggle {
    font-size: 20px;
    width: 24px;
    margin-left: 10px;
  }
  details.page-blog-chi-tiet-khuyen-mai-b789-moi-nhat__faq-item .page-blog-chi-tiet-khuyen-mai-b789-moi-nhat__faq-answer {
    padding: 0 15px 15px;
  }

  .page-blog-chi-tiet-khuyen-mai-b789-moi-nhat__cta-bottom {
    padding: 40px 0;
  }

  .page-blog-chi-tiet-khuyen-mai-b789-moi-nhat__button-group {
    flex-direction: column;
    gap: 15px;
    padding: 0 15px;
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
  }
  .page-blog-chi-tiet-khuyen-mai-b789-moi-nhat__button-group a {
    width: 100%;
  }

  /* 3. General images and containers for mobile */
  .page-blog-chi-tiet-khuyen-mai-b789-moi-nhat img {
    max-width: 100% !important;
    width: 100% !important;
    height: auto !important;
    display: block !important;
  }
  .page-blog-chi-tiet-khuyen-mai-b789-moi-nhat__section,
  .page-blog-chi-tiet-khuyen-mai-b789-moi-nhat__promo-card,
  .page-blog-chi-tiet-khuyen-mai-b789-moi-nhat__container {
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
    /* padding-left and padding-right handled by .page-blog-chi-tiet-khuyen-mai-b789-moi-nhat__container */
  }
}