:root{--km-primary:#2F6BFF;--km-secondary:#6FA3FF;--km-accent:#4A8BFF;--km-bg:#F4F7FB;--km-card-bg:#FFFFFF;--km-text:#1F2D3D;--km-border:#D6E2FF;--km-glow:#A5C4FF}.page-khuyen-mai{font-family:'Segoe UI',Roboto,Helvetica,Arial,sans-serif;color:var(--km-text);background-color:var(--km-bg);line-height:1.6;overflow-x:hidden}.page-khuyen-mai__container{max-width:1200px;margin:0 auto;padding:0 16px}.page-khuyen-mai__hero-section{padding-top:10px;padding-bottom:24px}.page-khuyen-mai__hero-section .page-khuyen-mai__container{display:flex;flex-direction:column;gap:20px}.page-khuyen-mai__hero-image{width:100%;height:auto;object-fit:cover;display:block;border-radius:12px;box-shadow:0 8px 24px rgba(47,107,255,0.15)}.page-khuyen-mai__content-area{text-align:center;max-width:900px;margin:0 auto;padding:0 16px}.page-khuyen-mai__title{font-size:clamp(1.6rem,2.6vw,2.4rem);font-weight:800;color:var(--km-primary);line-height:1.3;letter-spacing:-0.01em;margin-bottom:12px}.page-khuyen-mai__subtitle{font-size:clamp(1rem,1.3vw,1.125rem);color:#526b8a;line-height:1.7;margin-bottom:24px}.page-khuyen-mai__cta-group{display:flex;flex-wrap:wrap;gap:12px;justify-content:center;margin-top:24px}.page-khuyen-mai__cta-btn{display:inline-block;padding:14px 32px;font-size:1rem;font-weight:700;text-align:center;border-radius:50px;text-decoration:none;transition:transform .2s ease,box-shadow .2s ease;box-sizing:border-box;max-width:100%;white-space:normal;word-wrap:break-word}.page-khuyen-mai__cta-btn--primary,.page-khuyen-mai__cta-btn{background:linear-gradient(180deg,var(--km-accent) 0%,var(--km-primary) 100%);color:#fff;border:none;box-shadow:0 4px 15px rgba(47,107,255,0.4)}.page-khuyen-mai__cta-btn--secondary{background:var(--km-card-bg);color:var(--km-primary);border:2px solid var(--km-primary)}.page-khuyen-mai__cta-btn:hover,.page-khuyen-mai__promo-btn:hover,.page-khuyen-mai__howto-btn:hover{transform:translateY(-2px);box-shadow:0 8px 24px var(--km-glow)}.page-khuyen-mai__promo-section{padding:32px 0;background-color:var(--km-card-bg)}.page-khuyen-mai__section-title{color:var(--km-primary);font-size:clamp(1.4rem,2vw,2rem);font-weight:800;text-align:center;margin-bottom:16px}.page-khuyen-mai__section-desc{color:#526b8a;text-align:center;max-width:800px;margin:0 auto 32px}.page-khuyen-mai__promo-grid{display:flex;flex-direction:column;gap:32px}.page-khuyen-mai__promo-card{display:flex;flex-direction:column;background:var(--km-card-bg);border:1px solid var(--km-border);border-radius:16px;overflow:hidden;box-shadow:0 4px 12px rgba(31,45,61,0.08);transition:box-shadow .3s ease}.page-khuyen-mai__promo-card:hover{box-shadow:0 8px 24px rgba(47,107,255,0.2)}.page-khuyen-mai__promo-image{position:relative;overflow:hidden}.page-khuyen-mai__promo-img{width:100%;height:auto;object-fit:cover;display:block}.page-khuyen-mai__promo-content{padding:24px;text-align:left}.page-khuyen-mai__promo-tag{display:inline-block;background:linear-gradient(135deg,var(--km-accent),var(--km-primary));color:#fff;font-size:.75rem;font-weight:700;text-transform:uppercase;letter-spacing:.05em;padding:6px 14px;border-radius:20px;margin-bottom:16px}.page-khuyen-mai__promo-tag--hot{background:linear-gradient(135deg,#ff6b6b,#ee5a24)}.page-khuyen-mai__promo-title{color:var(--km-text);font-size:clamp(1.15rem,1.5vw,1.5rem);font-weight:700;margin-bottom:12px}.page-khuyen-mai__promo-desc{color:#526b8a;margin-bottom:12px}.page-khuyen-mai__promo-list{list-style:none;padding:0;margin-bottom:20px}.page-khuyen-mai__promo-list li{padding-left:24px;position:relative;margin-bottom:8px;color:#526b8a}.page-khuyen-mai__promo-list li::before{content:'\2713';position:absolute;left:0;color:var(--km-primary);font-weight:700}.page-khuyen-mai__promo-btn,.page-khuyen-mai__howto-btn{display:inline-block;padding:12px 28px;font-size:.95rem;font-weight:600;text-align:center;border-radius:50px;text-decoration:none;background:linear-gradient(180deg,var(--km-accent) 0%,var(--km-primary) 100%);color:#fff;transition:transform .2s ease,box-shadow .2s ease;box-sizing:border-box;max-width:100%;white-space:normal;word-wrap:break-word}.page-khuyen-mai__howto-section{padding:40px 0}.page-khuyen-mai__steps-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-bottom:40px}.page-khuyen-mai__step-card{background:var(--km-card-bg);border:1px solid var(--km-border);border-radius:16px;padding:24px;text-align:center;transition:transform .2s ease}.page-khuyen-mai__step-card:hover{transform:translateY(-4px);box-shadow:0 12px 24px rgba(47,107,255,0.1)}.page-khuyen-mai__step-number{width:48px;height:48px;line-height:48px;border-radius:50%;background:linear-gradient(180deg,var(--km-accent),var(--km-primary));color:#fff;font-weight:700;font-size:1.2rem;margin:0 auto 16px}.page-khuyen-mai__step-title{font-weight:700;margin-bottom:12px;color:var(--km-text)}.page-khuyen-mai__step-desc{color:#526b8a;font-size:.95rem}.page-khuyen-mai__step-card p{text-align:left}.page-khuyen-mai__howto-cta{text-align:center}.page-khuyen-mai__rules-section{padding:40px 0;background-color:var(--km-card-bg)}.page-khuyen-mai__rules-text{max-width:800px;margin:0 auto;background-color:var(--km-bg);padding:24px 28px;border-radius:12px}.page-khuyen-mai__rules-text p{color:var(--km-text)}.page-khuyen-mai__rules-list{list-style:none;padding:0;margin-top:16px}.page-khuyen-mai__rules-list li{padding-left:24px;position:relative;margin-bottom:10px;color:#526b8a}.page-khuyen-mai__rules-list li::before{content:'\2022';color:var(--km-primary);font-size:1.5rem;position:absolute;left:0;top:-4px}.page-khuyen-mai__faq-section{padding:40px 0}.page-khuyen-mai__faq-list{max-width:850px;margin:0 auto}.page-khuyen-mai__faq-item{border:1px solid var(--km-border);background:var(--km-card-bg);border-radius:12px;margin-bottom:12px;overflow:hidden;transition:box-shadow .3s ease}.page-khuyen-mai__faq-item[open]{box-shadow:0 4px 12px rgba(47,107,255,0.15)}.page-khuyen-mai__faq-question{list-style:none;padding:17px 20px;cursor:pointer;font-weight:600;color:var(--km-text);display:flex;justify-content:space-between;align-items:center;gap:12px}.page-khuyen-mai__faq-question::-webkit-details-marker{display:none}.page-khuyen-mai__faq-icon{font-size:1.5rem;line-height:1;color:var(--km-primary);min-width:20px;text-align:center}.page-khuyen-mai__faq-answer{padding:0 20px 18px;color:#526b8a;border-top:1px solid var(--km-border);padding-top:14px}.page-khuyen-mai__cta-banner{background:linear-gradient(135deg,var(--km-primary),var(--km-accent));padding:44px 0;text-align:center;border-radius:16px;margin:40px 16px;color:#fff}.page-khuyen-mai__cta-title{font-weight:800;font-size:clamp(1.4rem,2.2vw,2rem);margin-bottom:12px;color:#fff}.page-khuyen-mai__cta-desc{color:rgba(255,255,255,0.9);max-width:720px;margin:0 auto 26px}.page-khuyen-mai__cta-banner .page-khuyen-mai__cta-btn--primary{background:#fff;color:var(--km-primary);box-shadow:0 4px 15px rgba(0,0,0,0.2)}.page-khuyen-mai__cta-banner .page-khuyen-mai__cta-btn--secondary{border-color:#fff;color:#fff}.page-khuyen-mai__note-section{padding:32px 16px;background-color:var(--km-card-bg)}.page-khuyen-mai__note-text{max-width:800px;margin:0 auto;font-size:.9rem;color:#526b8a;text-align:center}.page-khuyen-mai__note-text strong{color:var(--km-primary)}.page-khuyen-mai img{max-width:100%;height:auto}@media (max-width:1024px){.page-khuyen-mai__container{padding:0 20px}.page-khuyen-mai__steps-grid{grid-template-columns:repeat(2,1fr)}.page-khuyen-mai__promo-card--reverse .page-khuyen-mai__promo-image,.page-khuyen-mai__promo-card--reverse .page-khuyen-mai__promo-content{order:initial}.page-khuyen-mai__promo-card--reverse .page-khuyen-mai__promo-content{order:2}}@media (max-width:768px){.page-khuyen-mai__container{padding:0 12px}.page-khuyen-mai__promo-section,.page-khuyen-mai__howto-section,.page-khuyen-mai__rules-section,.page-khuyen-mai__faq-section{padding:32px 0}.page-khuyen-mai__title{font-size:clamp(1.3rem,5vw,1.8rem)}.page-khuyen-mai__subtitle{font-size:clamp(.95rem,2.5vw,1rem)}.page-khuyen-mai__steps-grid{grid-template-columns:1fr;gap:16px}.page-khuyen-mai__promo-card{flex-direction:column}.page-khuyen-mai__promo-content{padding:16px}.page-khuyen-mai__promo-btn,.page-khuyen-mai__howto-btn,.page-khuyen-mai__cta-btn{max-width:100%;box-sizing:border-box;white-space:normal;word-wrap:break-word;width:auto}.page-khuyen-mai__cta-group{width:100%;max-width:100%;overflow:hidden;box-sizing:border-box}.page-khuyen-mai__cta-group a{display:block;width:100%;margin-bottom:10px}.page-khuyen-mai__cta-banner{margin:32px 8px;padding:32px 16px}.page-khuyen-mai__rules-text{padding:16px}.page-khuyen-mai__promo-img,.page-khuyen-mai__hero-image{max-width:100%!important;height:auto!important}.page-khuyen-mai__promo-grid{display:block}.page-khuyen-mai__promo-card{margin-bottom:24px}}