/* VIE Nhôm Kính Home 3.2.9 - chỉ nội dung trang chủ, không đè header/footer */
.nk-home{--nk-gold:#b28a3b;--nk-dark:#1d1d1d;--nk-soft:#f5f5f5;color:#333;font-family:inherit;overflow:hidden}
.nk-home *{box-sizing:border-box}.nk-container{width:min(1180px,calc(100% - 36px));margin:0 auto}.nk-hero{position:relative;width:100%;height:clamp(430px,55vw,690px);overflow:hidden;background:#ddd}.nk-hero-slides,.nk-hero-slide{position:absolute;inset:0}.nk-hero-slide{opacity:0;transition:opacity .8s ease}.nk-hero-slide.is-active{opacity:1}.nk-hero-slide img{width:100%;height:100%;object-fit:cover;display:block}.nk-hero-empty{background:linear-gradient(135deg,#555,#222)}.nk-hero-overlay{position:absolute;inset:0;background:linear-gradient(90deg,rgba(0,0,0,.52),rgba(0,0,0,.12) 62%,rgba(0,0,0,.08))}.nk-hero-copy{position:relative;z-index:2;height:100%;display:flex;align-items:center}.nk-drop-copy{max-width:720px;color:#fff;animation:nkDrop .85s cubic-bezier(.2,.8,.2,1) both}.nk-drop-copy.is-replay{animation:none}.nk-eyebrow{font-size:15px;font-weight:700;letter-spacing:.16em;margin-bottom:12px}.nk-hero h1{font-size:clamp(31px,4.1vw,62px);line-height:1.08;margin:0 0 26px;color:#fff;text-shadow:0 2px 12px rgba(0,0,0,.22);font-weight:800}.nk-btn{display:inline-flex;align-items:center;justify-content:center;min-height:44px;padding:0 24px;border:1px solid rgba(255,255,255,.85);color:#fff!important;text-decoration:none!important;text-transform:uppercase;font-size:13px;font-weight:700;letter-spacing:.08em;background:rgba(0,0,0,.18);transition:.2s}.nk-btn:hover{background:#fff;color:#222!important}@keyframes nkDrop{0%{opacity:0;transform:translateY(-85px)}70%{opacity:1;transform:translateY(8px)}100%{opacity:1;transform:translateY(0)}}
.nk-about{padding:68px 0;background:#fff}.nk-about-grid{display:grid;grid-template-columns:1.05fr 1fr;gap:55px;align-items:center}.nk-about-image img{width:100%;display:block;aspect-ratio:4/3;object-fit:cover}.nk-image-placeholder{aspect-ratio:4/3;background:#eee;display:grid;place-items:center;color:#999}.nk-kicker{font-size:13px;letter-spacing:.14em;color:#777;font-weight:700;margin-bottom:8px}.nk-about h2,.nk-section-title{font-size:30px;line-height:1.2;color:#222;margin:0 0 22px;font-weight:800;text-transform:uppercase}.nk-about p{font-size:15px;line-height:1.85;margin:0 0 14px;color:#555}
.nk-features{background:#f3f3f3;border-top:1px solid #e8e8e8;border-bottom:1px solid #e8e8e8}.nk-feature-grid{display:grid;grid-template-columns:repeat(4,1fr)}.nk-feature{min-height:108px;display:flex;align-items:center;justify-content:center;gap:14px;padding:20px;border-right:1px solid #ddd;text-align:left}.nk-feature:last-child{border-right:0}.nk-feature-icon{width:45px;height:45px;border:2px solid var(--nk-gold);color:var(--nk-gold);display:grid;place-items:center;border-radius:50%;font-size:20px;flex:none}.nk-feature strong{font-size:13px;line-height:1.35;color:#333}
.nk-products{padding:64px 0 72px;background:#fff}.nk-section-title{text-align:center;margin-bottom:28px}.nk-section-title:after{content:"";display:block;width:54px;height:2px;background:var(--nk-gold);margin:13px auto 0}.nk-cat-tabs{display:flex;justify-content:center;gap:7px;flex-wrap:wrap;margin-bottom:32px}.nk-cat-tabs button{border:1px solid #ddd;background:#fff;color:#555;padding:9px 15px;font-size:12px;font-weight:700;text-transform:uppercase;cursor:pointer;transition:.2s}.nk-cat-tabs button:hover,.nk-cat-tabs button.is-active{background:#222;color:#fff;border-color:#222}.nk-product-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px 18px}.nk-product-card{text-align:center;transition:.2s}.nk-product-card.is-hidden{display:none}.nk-product-image{display:block;background:#f4f4f4;overflow:hidden;aspect-ratio:1/1;text-decoration:none}.nk-product-image img{width:100%;height:100%;object-fit:cover;display:block;transition:transform .35s ease}.nk-product-card:hover .nk-product-image img{transform:scale(1.035)}.nk-product-card h3{font-size:14px;line-height:1.4;margin:13px 4px 7px;text-transform:uppercase}.nk-product-card h3 a{color:#333;text-decoration:none}.nk-product-more{font-size:12px;color:#9b7531!important;text-decoration:none!important;font-weight:700}.nk-empty{text-align:center;color:#888}
.nk-videos{padding:62px 0 74px;background:#f5f5f5}.nk-video-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}.nk-video{position:relative;display:block;aspect-ratio:16/9;background:#111;overflow:hidden}.nk-video img{width:100%;height:100%;object-fit:cover;display:block;transition:transform .3s ease,opacity .3s}.nk-video:hover img{transform:scale(1.035);opacity:.85}.nk-play{position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);width:54px;height:54px;border-radius:50%;background:rgba(200,0,0,.92);color:#fff;display:grid;place-items:center;padding-left:4px;font-size:21px;box-shadow:0 4px 18px rgba(0,0,0,.25)}
@media(max-width:900px){.nk-about-grid{grid-template-columns:1fr;gap:28px}.nk-feature-grid{grid-template-columns:repeat(2,1fr)}.nk-feature:nth-child(2){border-right:0}.nk-feature:nth-child(-n+2){border-bottom:1px solid #ddd}.nk-product-grid{grid-template-columns:repeat(2,1fr)}.nk-video-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:549px){.nk-container{width:min(100% - 24px,1180px)}.nk-hero{height:440px}.nk-hero-copy{align-items:flex-end;padding-bottom:58px}.nk-hero-overlay{background:linear-gradient(0deg,rgba(0,0,0,.66),rgba(0,0,0,.08) 72%)}.nk-hero h1{font-size:31px}.nk-about{padding:42px 0}.nk-about h2,.nk-section-title{font-size:24px}.nk-feature{min-height:90px;padding:14px 10px;gap:9px}.nk-feature-icon{width:38px;height:38px}.nk-feature strong{font-size:11px}.nk-products,.nk-videos{padding:44px 0 52px}.nk-product-grid{gap:18px 10px}.nk-product-card h3{font-size:12px}.nk-video-grid{grid-template-columns:1fr}}