:root{--c:#2f5d3a;--c-d:color-mix(in srgb,var(--c) 68%,#06140c);--c-s:color-mix(in srgb,var(--c) 10%,#fff);--c-m:color-mix(in srgb,var(--c) 22%,#fff);
--amber:#e3a234;--amber-d:#b97a12;--ink:#15231a;--mut:#56645b;--bg:#fff;--tint:#f3f6f2;--line:#e0e7df;--zalo:#0068ff;
--r:14px;--r-s:9px;--sh:0 1px 2px rgba(21,35,26,.06),0 8px 24px rgba(21,35,26,.07);
--f:"Be Vietnam Pro",system-ui,-apple-system,"Segoe UI",Roboto,Arial,sans-serif}
*{box-sizing:border-box}html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{transition:none!important;animation:none!important}}
body{margin:0;font:400 16px/1.65 var(--f);color:var(--ink);background:var(--bg)}
a{color:var(--c-d)}img{max-width:100%;height:auto;display:block}
:focus-visible{outline:3px solid var(--amber);outline-offset:2px;border-radius:4px}
h1,h2,h3{line-height:1.22;letter-spacing:-.01em;margin:0 0 .5em}
h1{font-size:clamp(28px,4.2vw,46px);font-weight:800}h2{font-size:clamp(22px,2.8vw,32px);font-weight:800}h3{font-size:18px;font-weight:700}
.wrap{max-width:1180px;margin:0 auto;padding:0 16px}
.skip{position:absolute;left:-999px}.skip:focus{left:12px;top:8px;z-index:50;background:#fff;padding:8px 12px}
/* đầu trang */
header.top{background:#fff;border-bottom:1px solid var(--line);position:sticky;top:0;z-index:20}
.top-in{display:flex;align-items:center;gap:16px;min-height:68px}
.logo{display:flex;flex-direction:column;text-decoration:none;color:var(--ink);line-height:1.15;margin-right:auto;min-width:0}
.logo b{font-size:21px;font-weight:800;color:var(--c-d);letter-spacing:.02em}.logo small{font-size:12px;color:var(--mut);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:260px}
nav.menu{display:flex;gap:2px}nav.menu a{padding:9px 12px;border-radius:var(--r-s);text-decoration:none;color:var(--ink);font-weight:500;font-size:15px;white-space:nowrap}
nav.menu a:hover{background:var(--tint)}nav.menu a[aria-current]{color:var(--c-d);background:var(--c-s);font-weight:600}
.b{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:12px 20px;border-radius:var(--r-s);font-weight:700;font-size:15.5px;text-decoration:none;border:2px solid transparent;cursor:pointer;line-height:1.2}
.b svg{width:18px;height:18px;flex:none}
.b-buy{background:var(--amber);color:#1d1405}.b-buy:hover{background:#eeb049}
.b-zalo{background:var(--zalo);color:#fff}.b-zalo:hover{background:#0a5be0}
.b-line{border-color:currentColor;color:var(--c-d);background:transparent}.b-line:hover{background:var(--c-s)}
.b-ghost{border-color:rgba(255,255,255,.75);color:#fff}.b-ghost:hover{background:rgba(255,255,255,.12)}
.b-sm{padding:8px 14px;font-size:14px}
/* hero */
.hero{background:var(--c-d);color:#fff;overflow:hidden}
.hero-in{display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,1fr);gap:40px;align-items:center;padding:56px 16px 64px}
.hero h1{color:#fff;margin-bottom:16px}.hero p.lead{font-size:18px;color:rgba(255,255,255,.88);max-width:560px;margin:0 0 24px}
.hero .acts{display:flex;flex-wrap:wrap;gap:10px}
.trust{display:flex;flex-wrap:wrap;gap:8px 22px;margin:28px 0 0;padding:18px 0 0;border-top:1px solid rgba(255,255,255,.18);list-style:none}
.trust li{display:flex;flex-direction:column;font-size:13.5px;color:rgba(255,255,255,.75)}.trust b{font-size:22px;color:#fff;font-weight:800;line-height:1.2}
.collage{position:relative;display:grid;grid-template-columns:1.25fr 1fr;grid-template-rows:1fr 1fr;gap:12px;aspect-ratio:1/0.86}
.collage img{width:100%;height:100%;object-fit:cover;border-radius:var(--r);background:var(--c-m)}
.collage img:first-child{grid-row:1/3}
.collage .tag{position:absolute;left:-14px;bottom:22px;background:var(--amber);color:#1d1405;font-weight:800;padding:10px 16px;border-radius:var(--r-s);box-shadow:0 10px 24px rgba(0,0,0,.25);transform:rotate(-3deg);font-size:15px}
.collage.empty{display:flex;flex-wrap:wrap;gap:8px;align-content:center;background:rgba(255,255,255,.06);border-radius:var(--r);padding:24px;aspect-ratio:auto}
.collage.empty span{background:rgba(255,255,255,.12);padding:8px 14px;border-radius:999px;font-weight:600}
/* khối */
section.blk{padding:56px 0}section.blk.tint{background:var(--tint)}
.blk-h{display:flex;align-items:end;justify-content:space-between;gap:16px;margin-bottom:22px;flex-wrap:wrap}.blk-h h2{margin:0}.blk-h p{margin:4px 0 0;color:var(--mut)}
.more{font-weight:600;text-decoration:none;white-space:nowrap}
/* dịch vụ */
.svc{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:28px}
.svc div{border-top:3px solid var(--c);padding-top:14px}.svc svg{width:30px;height:30px;color:var(--c);margin-bottom:8px}
.svc b{display:block;font-size:17px;margin-bottom:4px}.svc p{margin:0;color:var(--mut);font-size:15px}
/* sản phẩm */
.cats{display:flex;gap:8px;overflow-x:auto;padding:2px 2px 10px;margin:0 0 14px;scrollbar-width:thin}
.cats button{flex:none;border:1px solid var(--line);background:#fff;border-radius:999px;padding:8px 16px;font:600 14px var(--f);color:var(--ink);cursor:pointer}
.cats button[aria-pressed=true]{background:var(--c-d);border-color:var(--c-d);color:#fff}
.cats button span{color:inherit;opacity:.65;font-weight:500;margin-left:4px}
.pgrid{display:grid;grid-template-columns:repeat(auto-fill,minmax(min(100%,230px),1fr));gap:20px}
.pc{background:#fff;border:1px solid var(--line);border-radius:var(--r);overflow:hidden;display:flex;flex-direction:column;transition:box-shadow .2s,border-color .2s}
.pc:hover{box-shadow:var(--sh);border-color:var(--c-m)}
.pc-img{position:relative;display:block;aspect-ratio:1/1;background:var(--tint);overflow:hidden}
.pc-img img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;transition:opacity .35s}
.pc-img img+img{opacity:0}
@media (hover:hover){.pc:hover .pc-img img+img{opacity:1}}
.pc-img .ph{position:absolute;inset:0;display:grid;place-items:center;font-size:44px;font-weight:800;color:var(--c-m);background:var(--c-s)}
.cnt{position:absolute;right:10px;bottom:10px;background:rgba(21,35,26,.78);color:#fff;font-size:12.5px;font-weight:600;padding:3px 9px;border-radius:999px;display:flex;gap:5px;align-items:center}
.cnt svg{width:13px;height:13px}
.hot{position:absolute;left:10px;top:10px;background:var(--amber);color:#1d1405;font-size:12.5px;font-weight:800;padding:3px 10px;border-radius:999px}
.pc-b{padding:14px 16px 16px;display:flex;flex-direction:column;gap:6px;flex:1}
.pc-cat{font-size:13px;color:var(--c-d);font-weight:600}
.pc h3{font-size:17px;margin:0}.pc h3 a{color:var(--ink);text-decoration:none}.pc h3 a:hover{color:var(--c-d)}
.pc p{margin:0;color:var(--mut);font-size:14.5px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.pc-f{display:flex;align-items:center;justify-content:space-between;gap:8px;margin-top:auto;padding-top:10px;border-top:1px dashed var(--line)}
.pc-f small{color:var(--mut);font-size:13px}
.pc-f a{font-weight:700;font-size:14px;text-decoration:none;color:var(--zalo);white-space:nowrap}
/* trang sản phẩm */
.pd{display:grid;grid-template-columns:minmax(0,1.1fr) minmax(0,1fr);gap:40px;padding:12px 0 40px;align-items:start}
.gal{position:sticky;top:84px}
.gal-main{display:flex;overflow-x:auto;scroll-snap-type:x mandatory;border-radius:var(--r);background:var(--tint);scrollbar-width:none;aspect-ratio:1/1}
.gal-main::-webkit-scrollbar{display:none}
.gal-main figure{flex:0 0 100%;margin:0;scroll-snap-align:center;position:relative}
.gal-main img{width:100%;height:100%;object-fit:contain;cursor:zoom-in}
.gal-ctr{position:absolute;right:12px;bottom:12px;background:rgba(21,35,26,.78);color:#fff;font-size:13px;font-weight:600;padding:4px 10px;border-radius:999px;pointer-events:none}
.gal-wrap{position:relative}
.gal-nav{position:absolute;top:50%;transform:translateY(-50%);width:42px;height:42px;border-radius:50%;border:0;background:rgba(255,255,255,.92);box-shadow:var(--sh);cursor:pointer;display:grid;place-items:center;color:var(--ink)}
.gal-nav svg{width:20px;height:20px}.gal-nav.prev{left:10px}.gal-nav.next{right:10px}
.gal-thumbs{display:grid;grid-template-columns:repeat(auto-fill,minmax(68px,1fr));gap:8px;margin-top:10px}
.gal-thumbs a{display:block;aspect-ratio:1/1;border-radius:var(--r-s);overflow:hidden;border:2px solid transparent;background:var(--tint)}
.gal-thumbs a[aria-current=true]{border-color:var(--c)}
.gal-thumbs img{width:100%;height:100%;object-fit:cover}
.pi h1{font-size:clamp(26px,3.2vw,38px);margin:6px 0 10px}
.pi .lead{color:var(--mut);font-size:16.5px;margin:0 0 18px}
.spec{width:100%;border-collapse:collapse;margin:0 0 20px;font-size:15px}
.spec th,.spec td{padding:10px 0;border-bottom:1px solid var(--line);text-align:left;vertical-align:top}.spec th{width:40%;color:var(--mut);font-weight:500}
.spec td b{color:var(--c-d)}
.pi .acts{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:20px}.pi .acts .b{flex:1 1 200px}
.ticks{list-style:none;padding:0;margin:0 0 18px;display:grid;gap:8px}
.ticks li{position:relative;padding-left:28px}.ticks li::before{content:"";position:absolute;left:2px;top:6px;width:16px;height:10px;border-left:3px solid var(--c);border-bottom:3px solid var(--c);transform:rotate(-45deg)}
.assure{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:10px;background:var(--tint);border-radius:var(--r);padding:14px;font-size:13.5px;color:var(--mut)}
.assure b{display:block;color:var(--ink);font-size:14.5px}
.pdesc{max-width:780px;padding:8px 0 24px}
/* lightbox */
dialog.lb{border:0;padding:0;background:transparent;max-width:100vw;max-height:100vh;width:100vw;height:100vh}
dialog.lb::backdrop{background:rgba(8,14,10,.92)}
dialog.lb img{position:absolute;inset:56px 16px 16px;margin:auto;max-width:calc(100% - 32px);max-height:calc(100% - 72px);object-fit:contain}
dialog.lb button{position:absolute;border:0;background:rgba(255,255,255,.14);color:#fff;width:46px;height:46px;border-radius:50%;cursor:pointer;font-size:22px}
dialog.lb .x{top:10px;right:12px}dialog.lb .p{left:12px;top:50%}dialog.lb .n{right:12px;top:50%}
dialog.lb .c{position:absolute;top:20px;left:0;right:0;text-align:center;color:#fff;font-weight:600}
/* bài viết, trang phụ */
article.post{max-width:780px;margin:0 auto;padding:24px 0 48px}
article.post h1{font-size:clamp(26px,3.6vw,40px);margin:10px 0}article.post h2{margin-top:36px;font-size:25px}article.post h3{font-size:19px}
article.post .cover{border-radius:var(--r);margin:16px 0;width:100%}
.meta{color:var(--mut);font-size:14px}.crumbs{font-size:14px;color:var(--mut);padding-top:18px}.crumbs a{color:var(--mut);text-decoration:none}.crumbs a:hover{text-decoration:underline}
.pill{display:inline-block;background:var(--c-s);color:var(--c-d);border-radius:999px;padding:3px 12px;font-size:13px;font-weight:600}
.toc{background:var(--tint);border-radius:var(--r);padding:14px 18px;margin:18px 0}.toc ol{margin:6px 0 0;padding-left:20px}
.faq details{border-bottom:1px solid var(--line);padding:14px 0}.faq summary{font-weight:700;cursor:pointer}.faq p{margin:8px 0 0;color:var(--mut)}
.steps{counter-reset:s;list-style:none;padding:0;margin:0;display:grid;gap:14px}
.steps li{counter-increment:s;position:relative;padding:4px 0 4px 52px;min-height:40px}
.steps li::before{content:counter(s);position:absolute;left:0;top:0;width:38px;height:38px;border-radius:50%;background:var(--c-d);color:#fff;display:grid;place-items:center;font-weight:800}
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(min(100%,260px),1fr));gap:20px}
.card{background:#fff;border:1px solid var(--line);border-radius:var(--r);overflow:hidden;display:flex;flex-direction:column}
.card .in{padding:14px 16px;display:flex;flex-direction:column;gap:6px;flex:1}.card h3{margin:0;font-size:17px;line-height:1.35}
.card h3 a{color:var(--ink);text-decoration:none}.card p{margin:0;color:var(--mut);font-size:15px}
.card img{aspect-ratio:16/10;object-fit:cover;width:100%;background:var(--tint)}
.pager{display:flex;gap:6px;flex-wrap:wrap;margin-top:24px}.pager a,.pager span{min-width:40px;text-align:center;padding:8px 12px;border:1px solid var(--line);border-radius:var(--r-s);text-decoration:none}
.pager span{background:var(--c-d);color:#fff;border-color:var(--c-d)}
.band{background:var(--amber);color:#1d1405}.band .wrap{display:flex;align-items:center;justify-content:space-between;gap:20px;padding-top:34px;padding-bottom:34px;flex-wrap:wrap}
.band h2{margin:0 0 4px;font-size:clamp(21px,2.6vw,28px)}.band p{margin:0;font-size:16px}
.band .b-zalo{box-shadow:0 8px 20px rgba(0,104,255,.25)}
.cta{background:var(--c-s);border-left:4px solid var(--c);border-radius:var(--r-s);padding:16px 18px;margin:28px 0}.cta a{font-weight:700}
/* chân trang */
footer{background:#13221a;color:#c8d3cb;padding:44px 0 28px;font-size:15px}footer a{color:#fff;text-decoration:none}footer a:hover{text-decoration:underline}
.ft{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:28px}.ft b{color:#fff;display:block;margin-bottom:8px;font-size:16px}
.ft .copy{grid-column:1/-1;border-top:1px solid rgba(255,255,255,.12);padding-top:16px;font-size:13.5px;color:#93a198}
.fab{position:fixed;right:18px;bottom:18px;z-index:30;box-shadow:0 10px 24px rgba(0,104,255,.35);border-radius:999px;padding:13px 20px}
.mbar{display:none}
@media (max-width:980px){.hero-in{grid-template-columns:minmax(0,1fr);gap:28px;padding-top:36px;padding-bottom:40px}.collage{max-width:560px}
 .svc{grid-template-columns:repeat(2,minmax(0,1fr))}.pd{grid-template-columns:minmax(0,1fr);gap:24px}.gal{position:static}}
@media (max-width:760px){
 .top-in{flex-wrap:wrap;gap:8px 12px;min-height:0;padding-top:10px}
 nav.menu{order:3;width:calc(100% + 32px);margin:0 -16px;padding:0 10px 6px;overflow-x:auto;scrollbar-width:none}nav.menu::-webkit-scrollbar{display:none}
 nav.menu a{padding:7px 10px;font-size:14.5px}
 .top .b{padding:8px 12px;font-size:14px}.logo small{display:none}
 section.blk{padding:40px 0}.svc{grid-template-columns:minmax(0,1fr);gap:20px}.hero p.lead{font-size:16.5px}
 .pgrid{grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}.pc-b{padding:10px 12px 12px}.pc h3{font-size:15px}.pc p{display:none}
 .pc-f{flex-direction:column;align-items:flex-start;gap:4px}
 .collage .tag{left:8px;font-size:14px}
 .gal-thumbs{display:flex;overflow-x:auto;scrollbar-width:none;gap:6px}.gal-thumbs::-webkit-scrollbar{display:none}.gal-thumbs a{flex:0 0 58px}
 .gal-nav{width:36px;height:36px}
 .ft{grid-template-columns:minmax(0,1fr)}.assure{grid-template-columns:minmax(0,1fr)}
 .fab{display:none}body{padding-bottom:64px}
 .mbar{display:grid;grid-template-columns:1fr 1fr;position:fixed;left:0;right:0;bottom:0;z-index:30;background:#fff;border-top:1px solid var(--line);padding:8px 10px calc(8px + env(safe-area-inset-bottom));gap:8px}
 .mbar .b{padding:11px 10px}}