/* ===== Flatsome: Hero Banner + Promo Grid + Steps + FAQ ===== */
.page-khuyen-mai{background:#FFFFFF;color:#333333;line-height:1.6;padding-top:0;margin-top:0}
.page-khuyen-mai__hero-section{display:flex;flex-direction:column;padding-top:10px;margin:0 auto;max-width:1200px}
.page-khuyen-mai__hero-image-block{width:100%;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}
.page-khuyen-mai__hero-content{width:100%;max-width:768px;margin:24px auto 0;text-align:center;padding:0 16px}
.page-khuyen-mai__hero-title{font-weight:800;line-height:1.3;letter-spacing:-0.5px;color:#0477db;margin:0 0 12px}
.page-khuyen-mai__hero-description{font-size:1.05rem;color:#555;max-width:720px;margin:0 auto 20px}
.page-khuyen-mai__hero-actions{display:flex;flex-wrap:wrap;justify-content:center;gap:12px;width:100%;max-width:100%;overflow:hidden}

/* Buttons */
.page-khuyen-mai__btn{display:inline-block;padding:12px 28px;border:none;border-radius:50px;font-weight:700;text-decoration:none;cursor:pointer;transition:all .3s ease;line-height:1.2;text-align:center;box-sizing:border-box}
.page-khuyen-mai__btn--primary{background:#EA7C07;color:#fff;font-size:1rem}
.page-khuyen-mai__btn--primary:hover{background:#d06b00;transform:translateY(-2px)}
.page-khuyen-mai__btn--outline{background:transparent;color:#0477db;border:2px solid #26A9E0}
.page-khuyen-mai__btn--outline:hover{background:rgba(38,169,224,.08)}
.page-khuyen-mai__btn--small{padding:10px 22px;font-size:.9rem;background:#26A9E0;color:#fff}
.page-khuyen-mai__btn--small:hover{background:#1b8fc9}

/* Sections */
.page-khuyen-mai__section{max-width:1200px;margin:0 auto;padding:40px 16px 24px}
.page-khuyen-mai__section-title{font-size:1.75rem;font-weight:800;text-align:center;color:#0477db;margin-bottom:28px}

/* Promo Grid */
.page-khuyen-mai__promo-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:28px}
.page-khuyen-mai__promo-item{background:#fff;border:1px solid #e9f1f7;border-radius:16px;overflow:hidden;box-shadow:0 4px 16px rgba(0,0,0,.05);transition:box-shadow .3s ease}
.page-khuyen-mai__promo-item:hover{box-shadow:0 10px 30px rgba(4,119,219,.12)}
.page-khuyen-mai__promo-image{width:100%;height:auto;max-width:100%;aspect-ratio:16/9;object-fit:cover;display:block}
.page-khuyen-mai__promo-content{padding:24px}
.page-khuyen-mai__promo-title{font-size:1.2rem;font-weight:700;color:#0477db;margin:0 0 10px;line-height:1.35}
.page-khuyen-mai__promo-text{color:#666;margin:0 0 18px}

/* Why Grid */
.page-khuyen-mai__why-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.page-khuyen-mai__why-item{background:#f3faff;border-radius:12px;padding:24px 18px;text-align:center}
.page-khuyen-mai__why-title{font-weight:700;color:#0477db;margin:0 0 8px;font-size:1.1rem}
.page-khuyen-mai__why-text{font-size:.95rem;color:#555;margin:0}

/* Steps */
.page-khuyen-mai__steps-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.page-khuyen-mai__steps-item{background:linear-gradient(180deg,#f8fcff,#fff);border:1px solid #e1f0fa;border-radius:20px;padding:28px 20px;display:flex;flex-direction:column;align-items:center;gap:16px;text-align:center}
.page-khuyen-mai__step-badge{display:inline-block;width:64px;height:64px;border-radius:50%;background:#0477db;color:#fff;font-weight:800;display:flex;align-items:center;justify-content:center;font-size:1.2rem}
.page-khuyen-mai__step-text{color:#666;line-height:1.6;margin:0}

/* FAQ */
.page-khuyen-mai__faq-section{max-width:900px}
.page-khuyen-mai__faq-item{background:#fff;border:1px solid #dbe9f2;border-radius:12px;margin-bottom:10px;overflow:hidden}
.page-khuyen-mai__faq-item summary{cursor:pointer;padding:16px 20px;font-weight:600;color:#333;list-style:none;position:relative;padding-right:50px}
.page-khuyen-mai__faq-item summary:hover{background:#f7fbff}
.page-khuyen-mai__faq-item summary::-webkit-details-marker{display:none}
.page-khuyen-mai__faq-item[open] summary{border-bottom:1px solid #eef5fa}
.page-khuyen-mai__faq-content{padding:18px 20px;background:#fcfdff;color:#444}

/* Responsive Tablets & Mobiles */
@media (max-width:1024px){
.page-khuyen-mai__promo-grid{grid-template-columns:repeat(2,1fr);gap:20px}
.page-khuyen-mai__why-grid{grid-template-columns:repeat(2,1fr)}
.page-khuyen-mai__steps-grid{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:768px){
.page-khuyen-mai__hero-image{aspect-ratio:2/1}
.page-khuyen-mai__section{padding-top:24px}
.page-khuyen-mai__section-title{font-size:1.5rem}
.page-khuyen-mai__promo-grid{grid-template-columns:1fr}
.page-khuyen-mai__why-grid{grid-template-columns:1fr}
.page-khuyen-mai__steps-grid{grid-template-columns:1fr 1fr;gap:16px}
.page-khuyen-mai__steps-item:last-child{grid-column:span 2}
.page-khuyen-mai .page-khuyen-mai__btn{max-width:100%;width:auto;white-space:normal;word-wrap:break-word}
.page-khuyen-mai img{max-width:100% !important;height:auto !important}
.page-khuyen-mai{max-width:100%;overflow-x:hidden}
}
@media (max-width:480px){
.page-khuyen-mai__steps-grid{grid-template-columns:1fr}
.page-khuyen-mai__steps-item:last-child{grid-column:auto}
}