.page-khuyen-mai { color: #333333; }

.page-khuyen-mai__hero { padding: 10px 16px 0; }
.page-khuyen-mai__hero-image { width: 100%; max-width: 1200px; margin: 0 auto; }
.page-khuyen-mai__hero-image img { width: 100%; height: auto; aspect-ratio: 17/5; object-fit: cover; display: block; border-radius: 16px; }
.page-khuyen-mai__hero-content { max-width: 800px; margin: 16px auto 0; text-align: center; padding-bottom: 20px; }
.page-khuyen-mai__hero-title { font-size: clamp(1.6rem, 3.2vw, 2.4rem); line-height: 1.3; font-weight: 800; color: #1a5276; letter-spacing: -0.02em; margin: 0 0 12px; }
.page-khuyen-mai__hero-desc { font-size: 1rem; line-height: 1.6; color: #4a4a4a; max-width: 640px; margin: 0 auto 20px; }
.page-khuyen-mai__btn { display: inline-block; padding: 12px 28px; border-radius: 999px; font-weight: 700; font-size: 1rem; text-decoration: none; transition: transform .15s ease, box-shadow .15s ease; }
.page-khuyen-mai__btn:hover { transform: translateY(-2px); box-shadow: 0 6px 16px rgba(0,0,0,.12); }
.page-khuyen-mai__btn--primary { background-color: #EA7C07; color: #ffffff; }
.page-khuyen-mai__btn--secondary { background-color: #26A9E0; color: #ffffff; }
.page-khuyen-mai__btn--light { background-color: #ffffff; color: #EA7C07; }

.page-khuyen-mai__intro { padding: 40px 16px 0; }
.page-khuyen-mai__intro-inner { max-width: 900px; margin: 0 auto; text-align: center; }
.page-khuyen-mai__intro-title { font-size: clamp(1.4rem, 2.4vw, 2rem); font-weight: 800; color: #1a5276; margin: 0 0 16px; }
.page-khuyen-mai__intro-text { font-size: 1.05rem; line-height: 1.7; color: #4a4a4a; }

.page-khuyen-mai__offers { padding: 32px 16px; max-width: 1200px; margin: 0 auto; }
.page-khuyen-mai__offers-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.page-khuyen-mai__offer-card { background: #ffffff; border: 1px solid #e8f1f8; border-radius: 16px; padding: 20px; text-align: center; transition: box-shadow .2s ease; display: flex; flex-direction: column; align-items: center; }
.page-khuyen-mai__offer-card:hover { box-shadow: 0 8px 24px rgba(38,169,224,.15); }
.page-khuyen-mai__offer-card img { width: 100%; max-width: 400px; aspect-ratio: 2/1; object-fit: contain; border-radius: 10px; margin-bottom: 16px; }
.page-khuyen-mai__offer-title { font-size: 1.2rem; font-weight: 700; color: #1a5276; margin: 0 0 12px; }
.page-khuyen-mai__offer-text { font-size: .95rem; line-height: 1.6; color: #5a5a5a; margin: 0 0 20px; flex-grow: 1; }

.page-khuyen-mai__promo-banner { background: linear-gradient(135deg, #26A9E0 0%, #1a7fb5 100%); padding: 48px 16px; text-align: center; }
.page-khuyen-mai__promo-banner-text { max-width: 700px; margin: 0 auto; }
.page-khuyen-mai__promo-banner-title { font-size: clamp(1.4rem, 2.6vw, 2.2rem); font-weight: 800; color: #ffffff; margin: 0 0 12px; }
.page-khuyen-mai__promo-banner-desc { font-size: 1.05rem; line-height: 1.6; color: #eaf6fd; margin: 0 0 28px; }

.page-khuyen-mai__guide { padding: 48px 16px; }
.page-khuyen-mai__guide-inner { max-width: 1000px; margin: 0 auto; }
.page-khuyen-mai__guide-title { text-align: center; font-size: clamp(1.4rem, 2.4vw, 2rem); font-weight: 800; color: #1a5276; margin: 0 0 16px; }
.page-khuyen-mai__guide-intro { text-align: center; color: #4a4a4a; font-size: 1rem; line-height: 1.6; margin: 0 0 24px; }
.page-khuyen-mai__guide-figure { margin: 0 0 32px; text-align: center; }
.page-khuyen-mai__guide-figure img { width: 100%; max-width: 800px; aspect-ratio: 2/1; object-fit: cover; border-radius: 16px; }
.page-khuyen-mai__guide-steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.page-khuyen-mai__guide-step { background: #f7fbfe; border: 1px solid #e8f1f8; border-radius: 12px; padding: 24px; }
.page-khuyen-mai__guide-step-title { font-size: 1.1rem; font-weight: 700; color: #1a5276; margin: 0 0 10px; }
.page-khuyen-mai__guide-step-text { font-size: .95rem; color: #5a5a5a; line-height: 1.6; margin: 0; }

.page-khuyen-mai__faq { padding: 0 16px 48px; }
.page-khuyen-mai__faq-inner { max-width: 800px; margin: 0 auto; }
.page-khuyen-mai__faq-title { text-align: center; font-size: clamp(1.4rem, 2.4vw, 2rem); font-weight: 800; color: #1a5276; margin: 0 0 24px; }
.page-khuyen-mai__faq-item { background: #ffffff; border: 1px solid #e8f1f8; border-radius: 12px; padding: 16px 20px; margin-bottom: 12px; }
.page-khuyen-mai__faq-question { font-weight: 600; color: #1a5276; cursor: pointer; display: flex; align-items: center; justify-content: space-between; gap: 12px; list-style: none; }
.page-khuyen-mai__faq-question::-webkit-details-marker { display: none; }
.page-khuyen-mai__faq-toggle { display: inline-block; font-size: 1.4rem; font-weight: 700; color: #26A9E0; line-height: 1; }
.page-khuyen-mai__faq-answer { margin: 12px 0 0; line-height: 1.6; color: #4a4a4a; font-size: .95rem; }

@media (max-width: 1024px) {
  .page-khuyen-mai__offers-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  .page-khuyen-mai__hero { padding: 8px 10px 0; }
  .page-khuyen-mai__hero-image img { aspect-ratio: 2/1; }
  .page-khuyen-mai__hero-content { margin-top: 12px; }
  .page-khuyen-mai__hero-title { font-size: clamp(1.3rem, 5vw, 1.8rem); }
  .page-khuyen-mai__hero-desc { font-size: .95rem; }
  .page-khuyen-mai__btn { padding: 10px 20px; font-size: .95rem; max-width: 100%; box-sizing: border-box; white-space: normal; word-wrap: break-word; display: block; width: fit-content; margin: 0 auto; }
  .page-khuyen-mai__hero-actions { width: 100%; max-width: 100%; overflow: hidden; box-sizing: border-box; text-align: center; }

  .page-khuyen-mai__intro { padding: 32px 16px 0; }
  .page-khuyen-mai__offers { padding: 24px 16px; }
  .page-khuyen-mai__offers-grid { grid-template-columns: 1fr; }

  .page-khuyen-mai__promo-banner { padding: 40px 16px; }

  .page-khuyen-mai__guide { padding: 24px 16px; }
  .page-khuyen-mai__guide-figure { margin-bottom: 24px; }
  .page-khuyen-mai__guide-figure img { aspect-ratio: 16/9; }
  .page-khuyen-mai__guide-steps { grid-template-columns: 1fr; }

  .page-khuyen-mai__faq { padding-bottom: 40px; }

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

@media (max-width: 480px) {
  .page-khuyen-mai__offers-grid { grid-template-columns: 1fr; }
  .page-khuyen-mai__guide-steps { grid-template-columns: 1fr; }
}