/* ==== Khuyến Mãi Page ==== */
.page-khuyen-mai{background:#F5F7FA;color:#333333;font-family:'Segoe UI',Roboto,Helvetica,Arial,sans-serif;line-height:1.6;padding-bottom:40px}

/* Hero Section */
.page-khuyen-mai__hero-section{max-width:1200px;margin:0 auto;padding:10px 16px 0;display:flex;flex-direction:column;align-items:center}
.page-khuyen-mai__hero-image{width:100%;margin-bottom:24px}
.page-khuyen-mai__hero-image img{width:100%;height:auto;aspect-ratio:17/5;object-fit:cover;border-radius:12px;display:block}
.page-khuyen-mai__hero-content{width:100%;max-width:1000px;text-align:center;padding:0 16px 24px;box-sizing:border-box}
.page-khuyen-mai__hero-content h1{color:#E53935;font-size:clamp(1.4rem, 3vw, 2.2rem);font-weight:800;line-height:1.3;letter-spacing:-0.01em;max-width:850px;margin:0 auto 16px}
.page-khuyen-mai__hero-content p{max-width:750px;margin:0 auto 24px;font-size:1.05rem}

/* Button cơ bản */
.page-khuyen-mai__btn{display:inline-block;padding:14px 28px;border-radius:999px;font-weight:700;text-decoration:none;text-align:center;white-space:normal;word-wrap:break-word;transition:opacity .2s ease,transform .2s ease;box-sizing:border-box}
.page-khuyen-mai__btn--primary{background:linear-gradient(180deg,#FF5A4F 0%,#E53935 100%);color:#ffffff;box-shadow:0 4px 12px rgba(229,57,53,.25)}
.page-khuyen-mai__btn--primary:hover{opacity:.92;transform:translateY(-2px)}
.page-khuyen-mai__btn--navigate{background:linear-gradient(180deg,#FF5A4F 0%,#E53935 100%);color:#fff;font-size:.95rem;padding:12px 20px}

/* CTA nhanh */
.page-khuyen-mai__cta-section{width:100%;background:#ffffff;border-top:1px solid #E0E0E0;border-bottom:1px solid #E0E0E0;padding:20px 16px}
.page-khuyen-mai__cta-inner{max-width:1100px;margin:0 auto;display:flex;justify-content:center;gap:16px;flex-wrap:wrap;align-items:center}
.page-khuyen-mai__cta-inner .page-khuyen-mai__btn{min-width:180px}

/* Khu vực ưu đãi chính */
.page-khuyen-mai__promo-section{max-width:1200px;margin:0 auto;padding:48px 16px 8px}
.page-khuyen-mai__promo-inner{max-width:1150px;margin:0 auto}
.page-khuyen-mai__section-title{color:#E53935;font-size:clamp(1.3rem, 2.5vw, 1.8rem);font-weight:800;line-height:1.35;text-align:center;margin:0 0 12px}
.page-khuyen-mai__promo-section .page-khuyen-mai__section-title{text-align:left}
.page-khuyen-mai__promo-inner>p{margin:0 0 32px;text-align:left;max-width:800px}
.page-khuyen-mai__promo-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.page-khuyen-mai__promo-card{background:#FFFFFF;border:1px solid #E0E0E0;border-radius:12px;overflow:hidden;display:flex;flex-direction:column;transition:box-shadow .25s ease}
.page-khuyen-mai__promo-card:hover{box-shadow:0 8px 20px rgba(0,0,0,.06)}
.page-khuyen-mai__promo-card img{width:100%;aspect-ratio:2/1;object-fit:cover;display:block}
.page-khuyen-mai__promo-title{color:#E53935;font-size:1.2rem;font-weight:700;line-height:1.4;margin:16px 16px 8px}
.page-khuyen-mai__promo-desc{font-size:.95rem;line-height:1.6;margin:0 16px 16px;flex-grow:1}
.page-khuyen-mai__promo-card .page-khuyen-mai__btn{margin:0 16px 20px;align-self:flex-start}

/* Hướng dẫn */
.page-khuyen-mai__guide-section{max-width:1000px;margin:32px auto 0;background:#FFFFFF;border:1px solid #E0E0E0;border-radius:12px;padding:32px 24px}
.page-khuyen-mai__guide-inner{max-width:800px;margin:0 auto}
.page-khuyen-mai__guide-section .page-khuyen-mai__section-title{text-align:left;margin-bottom:24px}
.page-khuyen-mai__guide-list{list-style:none;counter-reset:step;margin:0 0 24px;padding:0}
.page-khuyen-mai__guide-item{display:flex;gap:16px;align-items:flex-start;padding:14px 0;border-bottom:1px dashed #E0E0E0;counter-increment:step}
.page-khuyen-mai__guide-item:last-child{border-bottom:none}
.page-khuyen-mai__guide-step{flex-shrink:0;width:36px;height:36px;border-radius:50%;background:#E53935;color:#fff;display:flex;align-items:center;justify-content:center;font-weight:800;font-size:1.1rem}
.page-khuyen-mai__guide-item p{margin:0;font-size:1rem;flex:1}
.page-khuyen-mai__guide-inner>p{margin:0 0 24px;font-style:italic}

/* Responsive */
@media (max-width: 768px){
  .page-khuyen-mai{padding-bottom:32px}
  .page-khuyen-mai__hero-section{padding:10px 12px 0}
  .page-khuyen-mai__hero-image{width:100%}
  .page-khuyen-mai__hero-image img{aspect-ratio:2/1}
  .page-khuyen-mai__hero-content{text-align:left;padding:0 0 20px}
  .page-khuyen-mai__hero-content h1{font-size:clamp(1.35rem, 5vw, 1.7rem);line-height:1.4;margin-bottom:10px}
  .page-khuyen-mai__hero-content p{font-size:1rem}
  .page-khuyen-mai__btn{width:100%;max-width:100%;box-sizing:border-box}
  .page-khuyen-mai__cta-inner{flex-direction:column;gap:12px}
  .page-khuyen-mai__cta-inner .page-khuyen-mai__btn{width:100%;min-width:0}
  .page-khuyen-mai__promo-grid{grid-template-columns:1fr;gap:16px}
  .page-khuyen-mai__promo-card img{max-width:100%!important;height:auto!important;aspect-ratio:2/1}
  .page-khuyen-mai__promo-card .page-khuyen-mai__btn{width:auto;align-self:stretch;margin-left:16px;margin-right:16px}
  .page-khuyen-mai__guide-section{padding:24px 16px;margin-top:24px}
  .page-khuyen-mai__guide-item{flex-direction:column;gap:8px}
  .page-khuyen-mai__guide-step{width:30px;height:30px;font-size:1rem}
  .page-khuyen-mai__guide-inner>p{margin-bottom:16px}
}

@media (max-width: 480px){
  .page-khuyen-mai__hero-section{padding-top:8px}
  .page-khuyen-mai__hero-image img{aspect-ratio:16/9}
  .page-khuyen-mai__section-title{font-size:1.3rem;line-height:1.4}
  .page-khuyen-mai__promo-section{padding-top:32px}
  .page-khuyen-mai__guide-section{padding:20px 12px}
}