.page-khuyen-mai{background-color:var(--deep-navy,#08162B);color:#F3F8FF;font-family:Arial,Helvetica,sans-serif;line-height:1.6} .page-khuyen-mai__hero-section{padding:10px 16px 0;max-width:1200px;margin:0 auto} .page-khuyen-mai__hero-image{width:100%;height:auto;aspect-ratio:17/5;object-fit:cover;display:block;border-radius:12px;box-shadow:0 8px 32px rgba(0,0,0,.35)} .page-khuyen-mai__hero-content{text-align:center;padding:24px 16px 16px;max-width:900px;margin:0 auto} .page-khuyen-mai__hero-title{color:#F3F8FF;font-size:clamp(1.5rem,3vw,2.2rem);line-height:1.25;letter-spacing:.5px;margin-bottom:12px;font-weight:800} .page-khuyen-mai__hero-description{color:#AFC4E8;font-size:clamp(1rem,1.5vw,1.1rem);line-height:1.6;margin-bottom:20px} .page-khuyen-mai__hero-actions{display:flex;flex-wrap:wrap;justify-content:center;gap:12px} .page-khuyen-mai__btn-primary,.page-khuyen-mai__btn-secondary{display:inline-block;background:linear-gradient(180deg,#2B73F6 0%,#1144A6 100%);color:#F3F8FF;font-weight:700;font-size:1rem;line-height:1;padding:14px 28px;border-radius:999px;text-decoration:none;border:1px solid #244D84;transition:opacity .2s ease} .page-khuyen-mai__btn-primary:hover,.page-khuyen-mai__btn-secondary:hover{opacity:.9} .page-khuyen-mai__btn-secondary{background:transparent;border-color:#244D84;color:#F3F8FF} .page-khuyen-mai__promo-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px;max-width:1200px;margin:32px auto;padding:0 16px} .page-khuyen-mai__promo-card{background-color:#10233F;border:1px solid #244D84;border-radius:12px;overflow:hidden;display:flex;flex-direction:column;transition:box-shadow .2s ease} .page-khuyen-mai__promo-card:hover{box-shadow:0 6px 24px rgba(79,168,255,.15)} .page-khuyen-mai__promo-image{width:100%;height:auto;aspect-ratio:16/9;object-fit:cover;display:block} .page-khuyen-mai__promo-body{padding:20px;display:flex;flex-direction:column;align-items:flex-start;gap:10px;flex:1} .page-khuyen-mai__promo-badge{background:linear-gradient(180deg,#2B73F6 0%,#1144A6 100%);color:#F3F8FF;font-size:.8rem;font-weight:700;line-height:1;padding:6px 12px;border-radius:999px;border:1px solid #244D84} .page-khuyen-mai__promo-title{color:#F3F8FF;font-size:1.3rem;line-height:1.3;margin:4px 0 0} .page-khuyen-mai__promo-text{color:#AFC4E8;font-size:.95rem;line-height:1.55} .page-khuyen-mai__promo-note{color:#8EA5C0;font-size:.85rem;line-height:1.4;margin-top:auto} .page-khuyen-mai__promo-body .page-khuyen-mai__btn-primary{margin-top:8px;padding:10px 22px;font-size:.95rem} .page-khuyen-mai__guide-section{background-color:#10233F;border-top:1px solid #1B3357;border-bottom:1px solid #1B3357;padding:32px 16px} .page-khuyen-mai__guide-inner{max-width:1000px;margin:0 auto} .page-khuyen-mai__guide-title{text-align:center;color:#F3F8FF;font-size:clamp(1.4rem,2.5vw,1.8rem);margin-bottom:16px} .page-khuyen-mai__guide-intro{text-align:center;color:#AFC4E8;max-width:800px;margin:0 auto 24px} .page-khuyen-mai__guide-steps{max-width:800px;margin:0 auto} .page-khuyen-mai__guide-item{background-color:#08162B;border:1px solid #244D84;border-radius:8px;margin-bottom:12px;overflow:hidden} .page-khuyen-mai__guide-item summary{list-style:none;display:flex;align-items:center;gap:10px;padding:14px 16px;font-weight:700;color:#F3F8FF;cursor:pointer;background-color:transparent} .page-khuyen-mai__guide-item summary::-webkit-details-marker{display:none} .page-khuyen-mai__guide-toggle{background:linear-gradient(180deg,#2B73F6 0%,#1144A6 100%);color:#F3F8FF;border:1px solid #244D84;border-radius:50%;width:24px;height:24px;min-width:24px;line-height:1;display:inline-flex;align-items:center;justify-content:center;font-size:1rem;cursor:pointer} .page-khuyen-mai__guide-item[open] .page-khuyen-mai__guide-toggle{content:'−'} .page-khuyen-mai__guide-step-detail{padding:0 16px 16px 50px;color:#AFC4E8;line-height:1.6;font-size:.95rem} .page-khuyen-mai__terms-section{padding:32px 16px;max-width:1000px;margin:0 auto} .page-khuyen-mai__terms-title{color:#F3F8FF;font-size:clamp(1.3rem,2vw,1.6rem);margin-bottom:16px} .page-khuyen-mai__terms-list{display:grid;gap:8px} .page-khuyen-mai__term-item{color:#AFC4E8;font-size:.95rem;line-height:1.6;margin:0} .page-khuyen-mai__term-item strong{color:#F2C14E} .page-khuyen-mai__terms-support{color:#AFC4E8;font-size:.9rem;margin-top:16px} .page-khuyen-mai__terms-support a{color:#4FA8FF;text-decoration:none;font-weight:700} .page-khuyen-mai__cta-section{padding:24px 16px 40px;max-width:1200px;margin:0 auto} .page-khuyen-mai__cta-image{width:100%;height:auto;aspect-ratio:12/5;object-fit:cover;display:block;border-radius:12px} .page-khuyen-mai__cta-content{text-align:center;padding:20px 16px} .page-khuyen-mai__cta-title{color:#F3F8FF;font-size:clamp(1.4rem,2.5vw,1.8rem);margin-bottom:8px} .page-khuyen-mai__cta-text{color:#AFC4E8;max-width:700px;margin:0 auto 20px;font-size:1rem} .page-khuyen-mai__cta-buttons{display:flex;flex-wrap:wrap;justify-content:center;gap:12px} @media (max-width:768px){.page-khuyen-mai__hero-section{padding:8px 12px 0}.page-khuyen-mai__hero-image{aspect-ratio:2/1}.page-khuyen-mai__hero-content{padding:16px 8px}.page-khuyen-mai__promo-grid{grid-template-columns:1fr;gap:16px}.page-khuyen-mai__promo-card{max-width:100%}.page-khuyen-mai__promo-body{padding:16px}.page-khuyen-mai__promo-title{font-size:1.15rem}.page-khuyen-mai__guide-section{padding:24px 12px}.page-khuyen-mai__guide-step-detail{padding-left:16px}.page-khuyen-mai__terms-section{padding:24px 12px}.page-khuyen-mai__cta-section{padding:16px 12px 32px}.page-khuyen-mai img{max-width:100%!important;height:auto!important}.page-khuyen-mai__hero-actions,.page-khuyen-mai__cta-buttons{width:100%;max-width:100%;overflow:hidden;box-sizing:border-box}.page-khuyen-mai__btn-primary,.page-khuyen-mai__btn-secondary{max-width:100%;box-sizing:border-box;white-space:normal;word-wrap:break-word}}