.page-khuyen-mai{background:#08162B;color:#F3F8FF;font-family:'Segoe UI',Roboto,system-ui,sans-serif;line-height:1.6;max-width:100%;box-sizing:border-box}
.page-khuyen-mai *,.page-khuyen-mai *::before,.page-khuyen-mai *::after{box-sizing:border-box}
.page-khuyen-mai__hero-section{position:relative;overflow:hidden;max-width:1280px;margin:0 auto;background:linear-gradient(115deg,#10233F 0%,#0A1C33 55%,#113B7A 100%);border-radius:0 0 28px 28px;padding:10px 0 0}
.page-khuyen-mai__hero-inner{max-width:1220px;margin:0 auto;padding:10px 16px 36px;width:100%}
.page-khuyen-mai__hero-image-wrapper{margin:0 auto;max-width:1180px}
.page-khuyen-mai__hero-image{width:100%;height:auto;display:block;border-radius:20px;aspect-ratio:3/1;object-fit:cover;-webkit-box-shadow:0 18px 40px rgba(79,168,255,.22);box-shadow:0 18px 40px rgba(79,168,255,.22);border:1px solid #244D84}
.page-khuyen-mai__hero-content{margin-top:18px;text-align:center;position:relative;z-index:2}
.page-khuyen-mai__hero-badge{display:inline-block;padding:8px 22px;background:rgba(79,168,255,.14);border-radius:999px;font-size:14px;font-weight:700;letter-spacing:3px;color:#F2C14E;border:1px solid rgba(242,193,78,.4);text-transform:uppercase}
.page-khuyen-mai__hero-title{max-width:900px;margin:14px auto 10px;font-size:clamp(28px,4.5vw,52px);font-weight:800;line-height:1.18;color:#F3F8FF;letter-spacing:-.5px}
.page-khuyen-mai__hero-description{max-width:760px;margin:10px auto;font-size:clamp(15px,1.6vw,18px);color:#AFC4E8}
.page-khuyen-mai__hero-actions{display:flex;gap:16px;justify-content:center;flex-wrap:wrap;margin-top:24px}
.page-khuyen-mai__cta-btn{display:inline-block;padding:14px 34px;border-radius:999px;background:linear-gradient(180deg,#2B73F6 0%,#1144A6 100%);color:#ffffff;font-size:16px;font-weight:700;text-decoration:none;-webkit-box-shadow:0 6px 18px rgba(43,115,246,.4);box-shadow:0 6px 18px rgba(43,115,246,.4);border:1px solid rgba(79,168,255,.5);max-width:100%;white-space:normal;word-wrap:break-word;text-align:center;transition:opacity .25s ease,transform .2s ease}
.page-khuyen-mai__cta-btn:hover{opacity:.92;transform:translateY(-2px)}
.page-khuyen-mai__cta-btn--outline{background:transparent;border:1px solid #4FA8FF;color:#F3F8FF;-webkit-box-shadow:none;box-shadow:none}
.page-khuyen-mai__cta-btn--game{background:transparent;border:1px solid #F2C14E;color:#F2C14E;-webkit-box-shadow:none;box-shadow:none}
.page-khuyen-mai__cta-btn--special{border-color:transparent;background:linear-gradient(90deg,#F2C14E,#E5A92E);-webkit-box-shadow:0 6px 18px rgba(242,193,78,.26);box-shadow:0 6px 18px rgba(242,193,78,.26);color:#08162B}
.page-khuyen-mai__intro-section{max-width:760px;margin:0 auto;padding:50px 20px 10px;text-align:center}
.page-khuyen-mai__section-title{color:#F3F8FF;font-size:clamp(23px,3vw,32px);line-height:1.25;margin-bottom:10px}
.page-khuyen-mai__section-title--center{text-align:center}
.page-khuyen-mai__subsection-title{font-size:18px;color:#F2C14E;font-weight:600;margin:0 0 14px}
.page-khuyen-mai__intro-section p{color:#AFC4E8;font-size:16px;margin:0 0 20px}
.page-khuyen-mai__hot-actions{display:flex;gap:14px;justify-content:center;flex-wrap:wrap}
.page-khuyen-mai__promo-section{max-width:1180px;margin:24px auto 0;padding:40px 16px 20px}
.page-khuyen-mai__promo-header{margin-bottom:32px;text-align:center}
.page-khuyen-mai__section-subtitle{color:#AFC4E8;max-width:680px;margin:8px auto;font-size:15px}
.page-khuyen-mai__promo-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.page-khuyen-mai__promo-card{display:flex;flex-direction:column;width:100%;background:#10233F;border:1px solid #244D84;border-radius:18px;overflow:hidden;text-decoration:none;color:#F3F8FF;transition:border-color .25s,transform .25s;-webkit-box-shadow:0 8px 24px rgba(0,0,0,.22);box-shadow:0 8px 24px rgba(0,0,0,.22)}
.page-khuyen-mai__promo-card:hover{transform:translateY(-4px);border-color:#4FA8FF}
.page-khuyen-mai__promo-card-image-wrap{position:relative;aspect-ratio:8/5;background:#08162B}
.page-khuyen-mai__promo-card-image{width:100%;height:100%;display:block;object-fit:cover}
.page-khuyen-mai__promo-card-content{padding:16px 14px;display:flex;flex-direction:column;flex:1;text-align:center}
.page-khuyen-mai__promo-card-title{font-size:17px;font-weight:700;color:#F3F8FF;margin:0 0 8px;line-height:1.3}
.page-khuyen-mai__promo-card-text{font-size:14px;color:#AFC4E8;margin-bottom:14px;line-height:1.6}
.page-khuyen-mai__promo-card-btn{margin-top:auto;display:inline-block;align-self:center;padding:9px 22px;background:rgba(43,115,246,.18);border:1px solid #4FA8FF;color:#F3F8FF;border-radius:999px;font-size:14px;text-align:center;font-weight:600}
.page-khuyen-mai__promo-card:hover .page-khuyen-mai__promo-card-btn{background:linear-gradient(180deg,#2B73F6 0%,#1144A6 100%)}
.page-khuyen-mai__guide-section{padding:38px 16px 64px;background:linear-gradient(180deg,rgba(16,35,63,.5) 0%,rgba(8,22,43,0) 100%)}
.page-khuyen-mai__guide-inner{max-width:1060px;margin:0 auto}
.page-khuyen-mai__guide-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;margin:28px 0}
.page-khuyen-mai__guide-card-item{position:relative;background:#10233F;border:1px solid #244D84;border-radius:18px;padding:30px 18px 22px;display:flex;flex-direction:column;align-items:center;text-align:center}
.page-khuyen-mai__guide-step{position:absolute;top:14px;left:18px;width:36px;height:36px;border-radius:50%;background:linear-gradient(135deg,#F2C14E,#E5A92E);color:#08162B;font-weight:800;display:flex;align-items:center;justify-content:center;font-size:18px;-webkit-box-shadow:0 0 0 4px rgba(242,193,78,.15);box-shadow:0 0 0 4px rgba(242,193,78,.15)}
.page-khuyen-mai__guide-image-wrap{margin-top:6px;margin-bottom:12px;overflow:hidden;border-radius:12px;width:100%}
.page-khuyen-mai__guide-image{width:100%;aspect-ratio:3/2;object-fit:cover;display:block}
.page-khuyen-mai__guide-card-title{font-size:19px;color:#F3F8FF;margin:0 0 8px}
.page-khuyen-mai__guide-card-text{font-size:15px;color:#AFC4E8;margin:0 0 16px}
.page-khuyen-mai__content-btn{display:inline-block;padding:8px 24px;border-radius:999px;background:#10233F;border:1px solid #4FA8FF;color:#F3F8FF;font-weight:600;font-size:14px;text-decoration:none;max-width:100%;white-space:normal;word-wrap:break-word;text-align:center;transition:opacity .2s}
.page-khuyen-mai__content-btn--glow{background:linear-gradient(180deg,#2B73F6 0%,#1144A6 100%);border-color:transparent;-webkit-box-shadow:0 0 16px rgba(79,168,255,.3);box-shadow:0 0 16px rgba(79,168,255,.3)}
.page-khuyen-mai__content-btn:hover{opacity:.9}
.page-khuyen-mai__guide-cta{margin-top:22px;text-align:center;border-top:1px solid #244D84;padding-top:28px}
.page-khuyen-mai__guide-cta-text{color:#AFC4E8;margin-bottom:16px}
.page-khuyen-mai__faq-item{background:#10233F;border:1px solid #244D84;border-radius:14px;margin:10px auto 0;max-width:800px;padding:0 18px;color:#F3F8FF}
.page-khuyen-mai__faq-summary{display:flex;justify-content:space-between;align-items:center;gap:14px;cursor:pointer;list-style:none;font-weight:600;font-size:16px;padding-top:12px;min-height:52px;-webkit-user-select:none;user-select:none}
.page-khuyen-mai__faq-summary::-webkit-details-marker{display:none}
.page-khuyen-mai__faq-icon{font-size:22px;line-height:1;color:#F2C14E;flex-shrink:0}
.page-khuyen-mai__faq-answer{padding-bottom:16px;color:#AFC4E8;font-size:15px;margin:0}
@media (max-width:1080px){.page-khuyen-mai__promo-grid{grid-template-columns:repeat(2,1fr);gap:16px}}
@media (max-width:768px){.page-khuyen-mai__hero-inner{padding:8px 12px 24px;width:100%}.page-khuyen-mai__hero-image{aspect-ratio:16/9;max-width:100%}.page-khuyen-mai__hero-title{letter-spacing:0;margin-top:10px}.page-khuyen-mai__hero-badge, .page-khuyen-mai__hero-actions{max-width:100%} .page-khuyen-mai__hero-actions{flex-direction:column;gap:10px;align-items:center}.page-khuyen-mai__cta-btn{width:100%;max-width:100%}.page-khuyen-mai__intro-section{padding-top:28px}.page-khuyen-mai__hot-actions{flex-direction:column;width:100%;gap:12px}.page-khuyen-mai__promo-grid{grid-template-columns:1fr;align-items:stretch}.page-khuyen-mai__promo-card .page-khuyen-mai__promo-card-image{max-width:100%;width:100%;height:auto}.page-khuyen-mai__guide-grid{grid-template-columns:1fr;gap:18px}.page-khuyen-mai__guide-card-item{padding:26px 14px 18px}.page-khuyen-mai__guide-image,.page-khuyen-mai__promo-card-image{max-width:100%!important;height:auto!important}.page-khuyen-mai img{max-width:100%;height:auto}.page-khuyen-mai__content-btn{width:100%;max-width:100%}.page-khuyen-mai__guide-cta{text-align:center}.page-khuyen-mai__hero-actions .page-khuyen-mai__cta-btn{white-space:normal;word-wrap:break-word}}@media (max-width:380px){.page-khuyen-mai__promo-card-btn,.page-khuyen-mai__promo-card-title{font-size:15px}}