:root{--navy:#0B2E59;--navy2:#123F78;--gold:#B8862B;--gold2:#E9C46A;--ink:#1C2633;--mute:#5B6B80;--line:#E3E8EF;--bg:#F6F8FB;--r:12px}
*{box-sizing:border-box}html{scroll-behavior:smooth}
body{margin:0;font-family:"Segoe UI",Roboto,Arial,sans-serif;color:var(--ink);background:#fff;line-height:1.55}
a{color:inherit;text-decoration:none}img{max-width:100%}
.wrap{max-width:1200px;margin:0 auto;padding:0 20px}
.btn{display:inline-flex;align-items:center;gap:8px;border:0;border-radius:10px;padding:12px 20px;font-weight:700;font-size:15px;cursor:pointer;transition:.2s}
.btn-gold{background:var(--gold);color:#fff}.btn-gold:hover{background:#9C7020}
.btn-navy{background:var(--navy);color:#fff}.btn-navy:hover{background:var(--navy2)}
.btn-line{background:#fff;color:var(--navy);border:1.5px solid var(--line)}.btn-line:hover{border-color:var(--navy)}
.btn-zalo{background:#0068FF;color:#fff;width:100%;justify-content:center}.btn-zalo:hover{background:#0052cc}
/* topbar + header */
.topbar{background:var(--navy);color:#C9D6E8;font-size:13px}.topbar .wrap{display:flex;justify-content:space-between;gap:12px;padding-top:7px;padding-bottom:7px;flex-wrap:wrap}
.topbar b{color:var(--gold2)}
header.main{position:sticky;top:0;z-index:50;background:#fff;border-bottom:1px solid var(--line)}
header.main .wrap{display:flex;align-items:center;gap:20px;height:74px}
.logo img{height:46px;display:block}
nav.menu{display:flex;gap:4px;margin-left:auto}nav.menu a{padding:8px 12px;border-radius:8px;font-weight:600;color:#33445A}nav.menu a:hover,nav.menu a.on{color:var(--navy);background:var(--bg)}
.cart-btn{position:relative}.cart-btn .n{position:absolute;top:-7px;right:-7px;background:#E5484D;color:#fff;font-size:12px;min-width:22px;height:22px;border-radius:11px;display:grid;place-items:center;padding:0 5px}
/* hero */
.hero{padding:0;background:linear-gradient(135deg,#F4F7FC 0%,#fff 55%,#FBF5E8 100%);border-bottom:1px solid var(--line)}
.hero .wrap{display:grid;grid-template-columns:1.2fr .8fr;gap:40px;align-items:center;padding-top:56px;padding-bottom:56px}
.tag{display:inline-block;background:#FBF1DC;color:#8A6416;font-weight:700;font-size:13px;padding:5px 12px;border-radius:20px}
.hero h1{font-size:42px;line-height:1.18;margin:14px 0;color:var(--navy)}.hero h1 span{color:var(--gold)}
.hero p{font-size:17px;color:var(--mute);margin:0 0 24px}
.search{display:flex;background:#fff;border:2px solid var(--navy);border-radius:12px;overflow:hidden;max-width:600px}
.search input{flex:1;border:0;padding:15px 16px;font-size:16px;outline:0;min-width:0}.search .btn{border-radius:0}
.hint{font-size:13px;color:var(--mute);margin-top:10px}
.hero-card{background:#fff;border:1px solid var(--line);border-radius:16px;padding:24px;box-shadow:0 12px 40px rgba(11,46,89,.08)}
.hero-card h3{margin:0 0 14px;color:var(--navy)}
.steps-mini{list-style:none;padding:0;margin:0;display:grid;gap:12px}.steps-mini li{display:flex;gap:12px;align-items:flex-start}
.steps-mini i{flex:none;width:28px;height:28px;border-radius:50%;background:var(--navy);color:#fff;font-style:normal;font-weight:700;display:grid;place-items:center;font-size:14px}
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-top:32px}.stats div{background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:14px}
.stats b{display:block;font-size:24px;color:var(--navy)}.stats span{font-size:13px;color:var(--mute)}
/* sections */
section{padding:64px 0}section.alt{background:var(--bg)}
.sec-h{display:flex;justify-content:space-between;align-items:end;gap:16px;margin-bottom:28px}.sec-h h2{margin:0;font-size:30px;color:var(--navy)}.sec-h p{margin:6px 0 0;color:var(--mute)}
.cats{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.cat{background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:20px;transition:.2s;display:block}
.cat:hover{border-color:var(--gold);transform:translateY(-3px);box-shadow:0 10px 24px rgba(11,46,89,.08)}
.cat svg,.ph svg{width:34px;height:34px;stroke:var(--navy);fill:none;stroke-width:1.7;stroke-linejoin:round;stroke-linecap:round}
.cat h3{font-size:16px;margin:12px 0 6px;color:var(--navy)}.cat small{color:var(--mute);font-size:13px}
.grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.card{background:#fff;border:1px solid var(--line);border-radius:var(--r);overflow:hidden;display:flex;flex-direction:column}
.ph{aspect-ratio:4/3;background:linear-gradient(135deg,#EEF3FA,#F8F2E4);display:grid;place-items:center;position:relative}
.ph svg{width:56px;height:56px;opacity:.7}.ph em{position:absolute;left:10px;top:10px;font-style:normal;font-size:12px;background:#fff;border-radius:6px;padding:2px 8px;color:var(--mute)}
.card .b{padding:14px;display:flex;flex-direction:column;gap:6px;flex:1}
.card h4{margin:0;font-size:15px;line-height:1.35}.card .meta{font-size:13px;color:var(--mute)}
.card .row{display:flex;justify-content:space-between;align-items:center;margin-top:auto;padding-top:8px}
.price{font-weight:700;color:var(--gold);font-size:14px}
.add{background:var(--navy);color:#fff;border:0;border-radius:8px;padding:8px 12px;font-weight:700;cursor:pointer;font-size:13px}.add:hover{background:var(--navy2)}.add.ok{background:#1F9254}
.why{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}.why div{background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:22px}
.why b{display:block;color:var(--navy);font-size:17px;margin-bottom:6px}.why p{margin:0;color:var(--mute);font-size:14px}
.why .ic{width:44px;height:44px;border-radius:10px;background:#FBF1DC;color:var(--gold);display:grid;place-items:center;font-weight:800;font-size:18px;margin-bottom:12px}
.process{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;counter-reset:s}.process div{position:relative;padding:22px;border-radius:var(--r);background:#fff;border:1px solid var(--line)}
.process div:before{counter-increment:s;content:"0" counter(s);font-size:34px;font-weight:800;color:var(--gold2)}.process b{display:block;margin:4px 0;color:var(--navy)}.process p{margin:0;font-size:14px;color:var(--mute)}
.clients{display:flex;flex-wrap:wrap;gap:12px}.clients span{flex:1 1 160px;text-align:center;border:1px dashed #C8D2DF;border-radius:10px;padding:16px;color:#8090A5;font-weight:700}
.faq details{background:#fff;border:1px solid var(--line);border-radius:10px;padding:14px 18px;margin-bottom:10px}.faq summary{cursor:pointer;font-weight:700;color:var(--navy)}.faq p{margin:10px 0 0;color:var(--mute)}
.contact{display:grid;grid-template-columns:1fr 1fr;gap:24px}.box{background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:24px}
.box ul{list-style:none;padding:0;margin:0;display:grid;gap:10px}.box li b{color:var(--navy)}
.map{background:repeating-linear-gradient(45deg,#EEF3FA,#EEF3FA 12px,#F6F8FB 12px,#F6F8FB 24px);border-radius:var(--r);display:grid;place-items:center;color:var(--mute);min-height:260px;border:1px solid var(--line)}
footer{background:#081F3D;color:#A9B7CB;font-size:14px;padding:44px 0 20px}footer .cols{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:28px}
footer h5{color:#fff;font-size:15px;margin:0 0 12px}footer a{display:block;padding:3px 0}footer a:hover{color:var(--gold2)}
footer .copy{border-top:1px solid #1D3657;margin-top:28px;padding-top:16px;font-size:13px}
.flogo{background:#fff;border-radius:10px;padding:8px 12px;display:inline-block;margin-bottom:12px}.flogo img{height:38px;display:block}
/* catalog page */
.cat-layout{display:grid;grid-template-columns:260px 1fr;gap:24px;align-items:start}
.side{position:sticky;top:90px;background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:16px}
.side h4{margin:0 0 10px;color:var(--navy)}.side a{display:flex;justify-content:space-between;padding:8px 10px;border-radius:8px;font-size:14px}.side a:hover,.side a.on{background:var(--bg);color:var(--navy);font-weight:700}
.side select{width:100%;padding:9px;border:1px solid var(--line);border-radius:8px;margin-top:6px;font-size:14px}
.toolbar{display:flex;gap:12px;align-items:center;margin-bottom:16px;flex-wrap:wrap}.toolbar .search{flex:1;max-width:none;border-width:1.5px}.toolbar .search input{padding:11px 14px}
.count{color:var(--mute);font-size:14px}.empty{padding:40px;text-align:center;color:var(--mute);border:1px dashed var(--line);border-radius:var(--r)}
.crumb{font-size:14px;color:var(--mute);padding:18px 0 0}
/* cart drawer */
.ov{position:fixed;inset:0;background:rgba(8,31,61,.45);opacity:0;pointer-events:none;transition:.2s;z-index:90}.ov.on{opacity:1;pointer-events:auto}
.drawer{position:fixed;top:0;right:0;height:100%;width:min(440px,100%);background:#fff;z-index:100;transform:translateX(100%);transition:.25s;display:flex;flex-direction:column}
.drawer.on{transform:none}.drawer .hd{display:flex;justify-content:space-between;align-items:center;padding:16px 20px;border-bottom:1px solid var(--line)}
.drawer .hd h3{margin:0;color:var(--navy)}.x{background:none;border:0;font-size:26px;cursor:pointer;color:var(--mute)}
.drawer .items{flex:1;overflow:auto;padding:12px 20px}
.it{display:grid;grid-template-columns:1fr auto;align-items:start;gap:6px 10px;padding:12px 0;border-bottom:1px solid var(--line)}.it b{font-size:14px}.it small{color:var(--mute)}
.qty{display:flex;align-items:center;gap:6px}.qty input{width:64px;padding:6px;border:1px solid var(--line);border-radius:6px;text-align:center}
.rm{grid-column:1;justify-self:start;padding:0;background:none;border:0;color:#E5484D;cursor:pointer;font-size:13px}
.drawer .ft{padding:16px 20px;border-top:1px solid var(--line);display:grid;gap:8px;background:var(--bg)}
.drawer .ft input,.drawer .ft textarea{width:100%;padding:10px;border:1px solid var(--line);border-radius:8px;font:inherit;font-size:14px}
.note{font-size:12px;color:var(--mute)}
.toast{position:fixed;left:50%;bottom:24px;transform:translateX(-50%) translateY(20px);background:var(--ink);color:#fff;padding:12px 18px;border-radius:10px;opacity:0;transition:.25s;z-index:120;font-size:14px}.toast.on{opacity:1;transform:translateX(-50%)}
.zalo-float{position:fixed;right:20px;bottom:20px;z-index:80;width:56px;height:56px;border-radius:50%;background:#0068FF;color:#fff;display:grid;place-items:center;font-weight:800;box-shadow:0 8px 20px rgba(0,104,255,.35)}
@media(max-width:960px){.hero .wrap,.contact,.cat-layout{grid-template-columns:1fr}.cats,.grid,.why,.process{grid-template-columns:repeat(2,1fr)}nav.menu{display:none}.stats{grid-template-columns:repeat(2,1fr)}footer .cols{grid-template-columns:1fr 1fr}.side{position:static}.hero h1{font-size:32px}}
@media(max-width:520px){.grid{grid-template-columns:1fr 1fr;gap:10px}.cats,.why,.process{grid-template-columns:1fr}.card h4{font-size:14px}.topbar .wrap span:last-child{display:none}}

/* ảnh thật: sản phẩm (icon nằm dưới làm dự phòng khi thiếu ảnh), danh mục, hero, logo đối tác */
.ph img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}.ph em{z-index:1}
.cat img{display:block;width:calc(100% + 40px);height:auto;aspect-ratio:3/2;object-fit:cover;margin:-20px -20px 4px;border-radius:var(--r) var(--r) 0 0}.cat{overflow:hidden}
.hero-img{display:block;width:calc(100% + 48px);height:auto;aspect-ratio:4/3;object-fit:cover;margin:-24px -24px 18px;border-radius:16px 16px 0 0}.hero-card{overflow:hidden}
.clients .lg{flex:1 1 140px;display:grid;place-items:center;height:84px;background:#fff;border:1px solid var(--line);border-radius:10px;padding:14px 18px}
.clients .lg img{max-width:100%;max-height:44px;width:auto;height:auto;filter:grayscale(1);opacity:.75;transition:.2s}.clients .lg:hover img{filter:none;opacity:1}
.cat img{max-width:none}

/* nút giỏ dạng icon cỡ cố định (trước đây đổi chữ làm nút nhảy) */
.add{width:38px;height:38px;padding:0;display:grid;place-items:center;flex:none}
.add svg{width:20px;height:20px;stroke:#fff;fill:none;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}
.add .i-ok,.add.ok .i-cart{display:none}.add.ok .i-ok{display:block}
.card h4 a:hover{color:var(--navy)}a.ph{display:grid}
/* chi tiết sản phẩm */
.detail{display:grid;grid-template-columns:1fr 1fr;gap:36px;align-items:start}
.detail .ph{border-radius:16px;overflow:hidden;border:1px solid var(--line)}.detail .ph svg{width:90px;height:90px}
.detail h1{font-size:30px;line-height:1.25;margin:6px 0 10px;color:var(--navy)}.price.big{font-size:22px;margin-bottom:16px}
.spec{width:100%;border-collapse:collapse;font-size:15px;margin-bottom:20px}.spec th,.spec td{text-align:left;padding:9px 12px;border-bottom:1px solid var(--line)}
.spec th{width:150px;color:var(--mute);font-weight:600;background:var(--bg)}.spec a{color:var(--navy);font-weight:600}
.buy{display:flex;flex-wrap:wrap;gap:10px;align-items:center}.buy .qty{font-weight:600}.buy .qty input{width:80px;padding:10px;font-size:15px}
.perks{margin:20px 0 0;padding:0;list-style:none;display:grid;gap:6px;color:var(--mute);font-size:14px}.perks li:before{content:"✓ ";color:#1F9254;font-weight:800}
/* chấp nhận thanh toán */
.pay{border-top:1px solid #1D3657;margin-top:28px;padding-top:20px}.pay p{margin:12px 0 0;font-size:13px}
.pay-l{display:flex;flex-wrap:wrap;gap:14px}.pay-l span{display:grid;justify-items:center;gap:6px;font-size:12px;color:#C9D6E8}.pay-l img{display:block;width:60px;height:40px}
/* cờ ngôn ngữ */
.langs{display:flex;gap:6px;align-items:center}.langs button{padding:2px;border:2px solid transparent;border-radius:4px;background:none;cursor:pointer;line-height:0;opacity:.75}
.langs button:hover,.langs button.on{opacity:1;border-color:var(--gold2)}.langs img{width:24px;height:16px;border-radius:2px;display:block}
iframe.skiptranslate,.goog-te-banner-frame,#goog-gt-tt{display:none!important}body{top:0!important}
@media(max-width:960px){.detail{grid-template-columns:1fr}.detail h1{font-size:24px}}
@media(max-width:520px){.topbar .hours{display:none}}