:root{--sky:#0ea5e9;--sky-2:#38bdf8;--sky-3:#e0f2fe;--blue:#0369a1;--navy:#0f2544;--text:#172033;--muted:#667085;--line:#dbeafe;--bg:#f6fbff;--shadow:0 18px 50px rgba(14,165,233,.14)}
*{box-sizing:border-box;margin:0;padding:0}html{scroll-behavior:smooth}body{font-family:"Be Vietnam Pro",Arial,Helvetica,sans-serif;background:var(--bg);color:var(--text);line-height:1.55;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased}a{text-decoration:none;color:inherit}img{display:block;max-width:100%}.container{width:min(1220px,92%);margin:auto}
.topbar{background:linear-gradient(90deg,var(--blue),var(--sky));color:white;font-size:14px}.topbar .container{display:flex;justify-content:space-between;gap:18px;padding:9px 0}.header{position:sticky;top:0;z-index:20;background:rgba(255,255,255,.94);backdrop-filter:blur(18px);border-bottom:1px solid var(--line)}.header-main{display:grid;grid-template-columns:auto auto 1fr auto;gap:16px;align-items:center;padding:16px 0}.logo{display:flex;align-items:center;gap:12px;font-weight:950}.logo-mark{width:44px;height:44px;border-radius:14px;display:grid;place-items:center;color:white;background:linear-gradient(135deg,var(--sky),var(--blue))}.logo-name{font-size:23px;color:var(--navy)}.logo-name span{color:var(--sky)}.logo small{display:none}.menu-toggle{display:none;width:44px;height:44px;border:1px solid var(--line);border-radius:14px;background:white;padding:10px}.menu-toggle span{display:block;height:2px;margin:5px 0;background:var(--blue)}.nav{display:flex;justify-content:flex-end;gap:8px;overflow:auto}.nav li{list-style:none}.nav a{white-space:nowrap;padding:10px 13px;border-radius:999px;color:#385776;font-weight:900;font-size:14px}.nav a:hover{background:var(--sky-3);color:var(--blue)}.contact-btn{display:inline-flex;align-items:center;justify-content:center;min-height:44px;padding:0 16px;border-radius:14px;background:var(--sky);color:white;font-weight:950}
.hero{background:linear-gradient(135deg,#fff 0%,#eef9ff 62%,#dff4ff 100%);border-bottom:1px solid var(--line)}.hero-grid{display:grid;grid-template-columns:1fr minmax(360px,.78fr);gap:44px;align-items:center;padding:56px 0}.eyebrow{display:inline-flex;margin-bottom:12px;padding:8px 12px;background:white;border:1px solid var(--line);border-radius:999px;color:var(--blue);font-size:13px;font-weight:950}h1{max-width:760px;color:var(--navy);font-size:clamp(38px,5vw,64px);line-height:1.04;letter-spacing:-1px;margin-bottom:16px}.hero p{max-width:660px;color:#496178;font-size:18px}.hero-img{width:100%;height:390px;object-fit:cover;border:8px solid white;border-radius:28px;box-shadow:var(--shadow)}
.layout{display:grid;grid-template-columns:280px 1fr;gap:22px;align-items:start;padding:56px 0}.sidebar{position:sticky;top:94px;background:white;border:1px solid var(--line);border-radius:24px;box-shadow:0 14px 34px rgba(14,165,233,.09);padding:14px}.sidebar h3{padding:10px 12px 14px;color:var(--navy);font-size:20px}.sidebar a{display:flex;justify-content:space-between;gap:10px;padding:13px 12px;border-radius:16px;color:#385776;font-weight:900}.sidebar a:hover,.sidebar a.active{background:var(--sky-3);color:var(--blue)}.sidebar span{color:#84a8c4;font-size:13px}.section-head{display:flex;align-items:end;justify-content:space-between;gap:22px;margin-bottom:22px}.section-head h2{color:var(--navy);font-size:clamp(28px,4vw,44px);line-height:1.08}.section-head p{color:var(--muted);margin-top:7px}
.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}.card{display:grid;gap:14px;min-height:230px;background:white;border:1px solid var(--line);border-radius:24px;padding:20px;box-shadow:0 14px 34px rgba(14,165,233,.09)}.card:hover{border-color:var(--sky-2);box-shadow:var(--shadow)}.icon{display:grid;place-items:center;width:56px;height:56px;border-radius:18px;background:var(--sky-3);font-size:27px}.card h3{color:var(--navy);font-size:21px}.card p{color:var(--muted);font-size:14px}.tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:auto}.tags span{padding:8px 10px;border-radius:999px;background:#f1f9ff;color:var(--blue);font-size:13px;font-weight:900}
.products{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:18px}.product{overflow:hidden;background:white;border:1px solid var(--line);border-radius:24px;box-shadow:0 14px 34px rgba(14,165,233,.09)}.product img{width:100%;aspect-ratio:1/.68;object-fit:cover}.product-body{display:grid;gap:10px;padding:18px}.product h3{color:var(--navy);font-size:19px}.product p{color:var(--muted);font-size:14px}.price{color:var(--blue);font-size:20px;font-weight:950}.quote{display:flex;justify-content:center;align-items:center;min-height:42px;border-radius:14px;background:var(--sky-3);color:var(--blue);font-weight:950}.quote:hover{background:var(--sky);color:white}
.cta-band{margin:0 0 56px;padding:30px;background:linear-gradient(135deg,var(--blue),var(--sky));color:white;border-radius:28px;display:flex;align-items:center;justify-content:space-between;gap:18px;box-shadow:var(--shadow)}.cta-band h2{font-size:30px;line-height:1.1;margin-bottom:6px}.cta-band p{color:#e8f8ff}.cta-band a{background:white;color:var(--blue);padding:13px 18px;border-radius:14px;font-weight:950;white-space:nowrap}footer{background:#0f2544;color:#d8efff;padding:30px 0}footer .container{display:flex;justify-content:space-between;gap:18px}footer a{color:white;font-weight:900}
.single-product-hero{padding:56px 0;background:linear-gradient(135deg,#fff 0%,#eef9ff 100%)}.single-product-grid{display:grid;grid-template-columns:minmax(360px,.9fr) 1fr;gap:42px;align-items:center}.single-product-media img{width:100%;height:470px;object-fit:cover;border:8px solid white;border-radius:28px;box-shadow:var(--shadow)}.single-product-summary h1{color:var(--navy);font-size:clamp(36px,5vw,60px);line-height:1.05;margin-bottom:14px}.single-spec{color:var(--muted);font-size:18px}.single-meta{display:grid;grid-template-columns:repeat(2,1fr);gap:12px;margin:24px 0}.single-meta div{padding:18px;background:white;border:1px solid var(--line);border-radius:18px}.single-meta span,.single-meta strong{display:block}.single-meta span{color:var(--muted);font-size:13px}.single-meta strong{color:var(--blue);font-size:22px}.single-actions{display:flex;flex-wrap:wrap;gap:12px}.product-content{padding:46px 0}.entry-content{color:var(--text)}.pagination{margin-top:24px}.pagination .nav-links{display:flex;gap:8px;flex-wrap:wrap}.pagination a,.pagination span{padding:9px 12px;background:white;border:1px solid var(--line);border-radius:12px;color:var(--blue);font-weight:900}.floating-contact{position:fixed;right:18px;bottom:18px;z-index:40;display:grid;gap:10px}.floating-contact a{display:flex;align-items:center;justify-content:center;min-height:44px;padding:0 16px;border-radius:999px;color:white;font-weight:950;box-shadow:0 12px 28px rgba(15,37,68,.22)}.floating-phone{background:var(--sky)}.floating-zalo{background:#0f2544}
@media(max-width:980px){.header-main{grid-template-columns:auto 44px auto}.menu-toggle{display:block}.nav{grid-column:1/-1;display:none;justify-content:flex-start;flex-wrap:wrap}.nav.is-open{display:flex}.hero-grid,.layout,.single-product-grid{grid-template-columns:1fr}.sidebar{position:static}.grid,.products{grid-template-columns:repeat(2,1fr)}}@media(max-width:620px){.topbar .container{display:block;text-align:center}footer.st-footer .container{display:block;text-align:left}h1{font-size:36px}.hero-img,.single-product-media img{height:auto;aspect-ratio:4/3}.section-head,.cta-band{display:block}.grid,.products,.single-meta{grid-template-columns:1fr}.cta-band a{display:inline-flex;margin-top:16px}.floating-contact{left:14px;right:14px;grid-template-columns:1fr 1fr}.floating-contact a{border-radius:14px}}