:root{--g:#2e7d32;--g2:#388e3c;--g-d:#1b5e20;--g-dd:#0f3d14;--leaf:#e8f5e9;--lime:#8bc34a;--amber:#f9a825;--ink:#1f2a22;--muted:#5d6b60;--bg:#f6faf4;--card:#fff;--line:#e2ebe0;--shadow:0 6px 24px rgba(27,94,32,.08);--r:16px}
*{box-sizing:border-box}html{scroll-behavior:smooth}
body{margin:0;font-family:'Be Vietnam Pro',system-ui,Arial,sans-serif;color:var(--ink);background:var(--bg);line-height:1.65;font-size:16px}
img{max-width:100%;display:block;height:auto}a{color:var(--g-d);text-decoration:none}
h1,h2,h3,h4{line-height:1.25;margin:0}
.wrap{width:min(1200px,92%);margin-inline:auto}
.skip{position:absolute;left:-999px}.skip:focus{left:8px;top:8px;background:#fff;padding:.5em 1em;z-index:200}
.btn{display:inline-flex;align-items:center;gap:.4em;justify-content:center;border-radius:999px;padding:.72em 1.4em;font-weight:600;font-size:.95rem;cursor:pointer;border:none;transition:.18s;white-space:nowrap;min-height:46px}
.btn-primary{background:var(--g);color:#fff;box-shadow:0 4px 14px rgba(46,125,50,.28)}.btn-primary:hover{background:var(--g-d)}
.btn-ghost{background:#fff;color:var(--g);border:1.6px solid var(--g)}.btn-ghost:hover{background:var(--leaf)}
.btn-white{background:#fff;color:var(--g-d)}.btn-ghost-w{background:transparent;color:#fff;border:1.6px solid rgba(255,255,255,.7)}
.btn-sm{padding:.5em .9em;font-size:.84rem;min-height:40px}.btn-lg{padding:.85em 1.7em;font-size:1.03rem;min-height:52px}
/* top + header */
.topbar{background:var(--g-dd);color:#cfe8d0;font-size:.82rem}.topbar .wrap{display:flex;justify-content:space-between;padding:.4rem 0;gap:1rem}
.topbar a{color:#fff;font-weight:600}@media(max-width:640px){.topbar .tb-contact{display:none}}
.site-header{position:sticky;top:0;z-index:60;background:rgba(255,255,255,.96);backdrop-filter:blur(8px);border-bottom:1px solid var(--line);box-shadow:0 2px 12px rgba(0,0,0,.03)}
.nav{display:flex;align-items:center;gap:1rem;padding:.6rem 0}
.brand img{height:52px;width:auto}
.navtoggle,.burger{display:none}.burger{font-size:1.7rem;cursor:pointer;margin-left:auto;padding:.1em .4em;color:var(--g-d)}
.main-nav{margin-left:auto}.main-nav>ul{display:flex;gap:.3rem;list-style:none;margin:0;padding:0;align-items:center}
.main-nav a{display:block;padding:.6em .85em;border-radius:10px;color:var(--ink);font-weight:600}
.main-nav a:hover{background:var(--leaf);color:var(--g-d)}
.has-sub{position:relative}.sub{position:absolute;top:100%;left:0;background:#fff;border:1px solid var(--line);border-radius:12px;box-shadow:var(--shadow);min-width:230px;padding:.4rem;display:none;list-style:none;margin:0}
.has-sub:hover .sub{display:block}.sub a{padding:.55em .8em;font-weight:500}
.nav-cta{margin-left:.3rem}
@media(max-width:920px){
 .burger{display:block;order:3}
 .main-nav{order:4;flex-basis:100%;display:none}
 .navtoggle:checked ~ .main-nav{display:block}
 .main-nav>ul{flex-direction:column;align-items:stretch;padding:.5rem 0}
 .sub{position:static;display:block;box-shadow:none;border:none;padding-left:1rem;background:var(--bg)}
 .nav-cta{display:none}
}
/* hero */
.hero{background:linear-gradient(135deg,#eaf6e9 0%,#f6faf4 60%,#fff7e6 100%);padding:3rem 0}
.hero-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:2.5rem;align-items:center}
.eyebrow{display:inline-block;color:var(--g);font-weight:700;font-size:.85rem;background:var(--leaf);padding:.3em .9em;border-radius:999px}
.hero h1{font-size:2.9rem;font-weight:800;margin:.7rem 0}.hero h1 span{color:var(--g)}
.hero p{font-size:1.14rem;color:var(--muted);max-width:48ch;margin:0 0 1.5rem}
.hero-cta{display:flex;gap:.8rem;flex-wrap:wrap}
.hero-stats{display:flex;gap:2rem;margin-top:2rem}.hero-stats b{display:block;font-size:1.5rem;color:var(--g-d);font-weight:800}.hero-stats span{font-size:.85rem;color:var(--muted)}
.hero-img img{border-radius:24px;box-shadow:var(--shadow);aspect-ratio:1/1;object-fit:cover;width:100%}
@media(max-width:860px){.hero-grid{grid-template-columns:1fr}.hero h1{font-size:2.1rem}.hero-img{order:-1}}
/* trust */
.trust{display:grid;grid-template-columns:repeat(4,1fr);gap:1rem;margin:-1.8rem auto 0;position:relative;z-index:5}
.t-item{background:#fff;border:1px solid var(--line);border-radius:14px;padding:1rem;box-shadow:var(--shadow);display:flex;gap:.7rem;align-items:center}
.t-item span{font-size:1.7rem}.t-item b{display:block;font-size:.98rem}.t-item small{color:var(--muted);font-size:.8rem}
@media(max-width:780px){.trust{grid-template-columns:repeat(2,1fr)}}
/* sections */
.sec{padding:3.2rem 0}.sec-alt{background:#fff}
.sec-head{text-align:center;max-width:60ch;margin:0 auto 2rem}.sec-head.left{text-align:left;margin-left:0}
.sec-head h1,.sec-head h2{font-size:2rem;font-weight:800;margin:.3rem 0 .4rem}
.sec-head p{color:var(--muted);margin:0}
/* category grid */
.cat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:1.2rem}
.cat-tile{position:relative;border-radius:var(--r);overflow:hidden;aspect-ratio:4/3;box-shadow:var(--shadow);border:1px solid var(--line)}
.cat-tile img{width:100%;height:100%;object-fit:cover;transition:.4s}.cat-tile:hover img{transform:scale(1.07)}
.ct-ov{position:absolute;inset:0;background:linear-gradient(to top,rgba(15,61,20,.85),rgba(15,61,20,.05) 60%);display:flex;flex-direction:column;justify-content:flex-end;padding:1rem;color:#fff}
.ct-ov span{font-weight:700;font-size:1.05rem}.ct-ov small{opacity:.9;font-size:.8rem}
@media(max-width:860px){.cat-grid{grid-template-columns:repeat(2,1fr)}}
/* product grid */
.prod-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:1.3rem}
@media(max-width:980px){.prod-grid{grid-template-columns:repeat(3,1fr)}}
@media(max-width:680px){.prod-grid{grid-template-columns:repeat(2,1fr);gap:.8rem}}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--r);overflow:hidden;box-shadow:var(--shadow);transition:.2s;display:flex;flex-direction:column}
.card:hover{transform:translateY(-4px);box-shadow:0 16px 36px rgba(27,94,32,.14)}
.card-img{display:block;aspect-ratio:1/1;overflow:hidden;background:var(--leaf)}.card-img img{width:100%;height:100%;object-fit:cover;transition:.4s}
.card:hover .card-img img{transform:scale(1.06)}
.card-b{padding:.9rem;display:flex;flex-direction:column;gap:.5rem;flex:1}
.card-b h3{font-size:.98rem;font-weight:600;line-height:1.35}.card-b h3 a{color:var(--ink)}.card-b h3 a:hover{color:var(--g)}
.card-price{color:var(--amber);font-weight:700;font-size:.9rem;margin-top:auto}
.card-act{display:flex;gap:.4rem}.card-act .btn{flex:1;padding:.5em .4em}
/* breadcrumb */
.crumb{background:var(--leaf);font-size:.86rem}.crumb .wrap{padding:.6rem 0;color:var(--muted)}.crumb a{color:var(--g-d);font-weight:600}
/* product detail */
.pd-grid{display:grid;grid-template-columns:1fr 1.1fr;gap:2.5rem;align-items:start}
.pd-img img{border-radius:var(--r);box-shadow:var(--shadow);width:100%;aspect-ratio:1/1;object-fit:cover;position:sticky;top:90px}
.pd-cat{color:var(--g);font-weight:700;font-size:.85rem;text-transform:uppercase;letter-spacing:.04em}
.pd-info h1{font-size:1.9rem;font-weight:800;margin:.4rem 0 .6rem}
.pd-price{font-size:1.2rem;margin:.5rem 0}.pd-price b{color:var(--amber);font-size:1.5rem}
.pd-note{color:var(--muted);font-size:.9rem;margin:.6rem 0 1.2rem}
.pd-cta{display:flex;gap:.7rem;flex-wrap:wrap;margin-bottom:1rem}
.pd-trust{color:var(--g-d);font-size:.88rem;background:var(--leaf);padding:.7rem 1rem;border-radius:10px}
.pd-desc{margin-top:2.5rem}.pd-desc h2,.rel-title{font-size:1.4rem;font-weight:800;margin:0 0 1rem;padding-bottom:.5rem;border-bottom:2px solid var(--leaf)}
.rte{color:#33433b}.rte ul{padding-left:1.3rem}.rte li{margin:.3rem 0}.rte strong{color:var(--ink)}.rte table{width:100%;border-collapse:collapse}.rte td,.rte th{border:1px solid var(--line);padding:.5rem}
.rel-title{margin-top:2.5rem}
@media(max-width:820px){.pd-grid{grid-template-columns:1fr}.pd-img img{position:static}}
/* about */
.about{background:linear-gradient(135deg,#eef8ec,#fff8e9)}
.about-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:2.5rem;align-items:center}
.about-grid h2{font-size:1.9rem;margin:.4rem 0 .7rem}
.checks{list-style:none;padding:0;margin:1rem 0}.checks li{padding:.4rem 0 .4rem 1.9rem;position:relative;color:#33433b}.checks li::before{content:"✔";position:absolute;left:0;color:var(--g);font-weight:800}
.about-img img{border-radius:20px;box-shadow:var(--shadow);aspect-ratio:4/3;object-fit:cover;width:100%}
@media(max-width:820px){.about-grid{grid-template-columns:1fr}}
/* contact band */
.contact-band{background:linear-gradient(135deg,var(--g-d),var(--g));color:#fff;padding:2.6rem 0}
.contact-band .wrap{display:grid;grid-template-columns:1fr 1fr;gap:2rem;align-items:center}
.contact-band h2{color:#fff;font-size:1.7rem}.contact-band p{opacity:.92;margin:.4rem 0 1.2rem}
.cb-btns{display:flex;gap:.7rem;flex-wrap:wrap}
.cb-map iframe{width:100%;height:230px;border:0;border-radius:var(--r);box-shadow:0 10px 30px rgba(0,0,0,.2)}
@media(max-width:820px){.contact-band .wrap{grid-template-columns:1fr}}
/* footer */
.site-footer{background:var(--g-dd);color:#c9dccb;padding:2.8rem 0 0}
.foot{display:grid;grid-template-columns:2fr 1fr 1.6fr;gap:2rem}
.foot-logo{height:56px;background:#fff;padding:.3rem .5rem;border-radius:10px;margin-bottom:.7rem}
.site-footer h4{color:#fff;margin-bottom:.7rem}.site-footer a{color:#c9dccb}.site-footer a:hover{color:#fff}
.site-footer ul{list-style:none;padding:0;margin:0}.site-footer li{margin:.4rem 0}
.socials{display:flex;gap:.8rem;margin-top:.8rem}.socials a{background:rgba(255,255,255,.1);padding:.4em .9em;border-radius:999px;font-size:.85rem}
.foot-bottom{border-top:1px solid rgba(255,255,255,.12);margin-top:2rem;padding:1.1rem 0;text-align:center;font-size:.85rem;color:#9fc1a2}
@media(max-width:820px){.foot{grid-template-columns:1fr}}
/* FAB */
.fab{position:fixed;right:14px;bottom:14px;z-index:80;display:flex;flex-direction:column;gap:.6rem}
.fab a{width:56px;height:56px;border-radius:50%;display:flex;flex-direction:column;align-items:center;justify-content:center;color:#fff;font-size:1.1rem;box-shadow:0 6px 18px rgba(0,0,0,.25);text-decoration:none}
.fab span{font-size:.56rem;font-weight:700}
.fab-zalo{background:#0068ff}.fab-call{background:var(--g);animation:pulse 2s infinite}
.faq{max-width:820px;margin:0 auto}.faq details{background:#fff;border:1px solid var(--line);border-radius:12px;margin-bottom:.7rem;box-shadow:var(--shadow)}
.faq summary{padding:1rem 1.2rem;font-weight:600;cursor:pointer;list-style:none;position:relative}.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";position:absolute;right:1.2rem;color:var(--g);font-weight:800}.faq details[open] summary::after{content:"–"}
.faq .faq-a{padding:0 1.2rem 1.1rem;color:#45503f}.faq .faq-a p{margin:.3rem 0}
.info-list{list-style:none;padding:0;margin:1rem 0}.info-list li{display:flex;gap:.7rem;padding:.6rem 0;border-bottom:1px solid var(--line)}.info-list .ic{font-size:1.2rem;flex-shrink:0}
.branches-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1.5rem}@media(max-width:860px){.branches-grid{grid-template-columns:1fr}}
.branch-card{background:#fff;border:1px solid var(--line);border-radius:16px;box-shadow:var(--shadow);padding:1.2rem}
.branch-card h3{font-size:1.1rem;margin-bottom:.7rem;color:var(--g-d)}.branch-card iframe{width:100%;height:200px;border:0;border-radius:10px}.branch-card p{color:var(--muted);font-size:.9rem;margin:.7rem 0}
.posts{display:grid;grid-template-columns:repeat(4,1fr);gap:1.3rem}@media(max-width:980px){.posts{grid-template-columns:repeat(3,1fr)}}@media(max-width:680px){.posts{grid-template-columns:repeat(2,1fr)}}@media(max-width:430px){.posts{grid-template-columns:1fr}}
.post-card{background:#fff;border:1px solid var(--line);border-radius:14px;overflow:hidden;box-shadow:var(--shadow);display:flex;flex-direction:column;transition:.2s}.post-card:hover{transform:translateY(-3px);box-shadow:0 14px 30px rgba(27,94,32,.12)}
.post-card img{aspect-ratio:16/10;object-fit:cover;width:100%}.post-card .pc-body{padding:.9rem;display:flex;flex-direction:column;gap:.4rem}.post-card h3{font-size:.96rem;line-height:1.4;margin:0}.post-card h3 a{color:var(--ink)}.post-card h3 a:hover{color:var(--g)}.post-meta{font-size:.8rem;color:var(--muted)}
.prose{max-width:820px;margin:0 auto}.prose h1{font-size:2rem;margin-bottom:1rem}.prose h2{font-size:1.4rem;margin:1.6rem 0 .6rem;color:var(--g-d)}.prose h3{font-size:1.15rem;margin:1.2rem 0 .4rem}.prose p,.prose li{color:#33433b}.prose ul,.prose ol{padding-left:1.3rem}.prose li{margin:.3rem 0}.prose img{border-radius:14px;margin:1rem 0;max-width:100%}.prose a{color:var(--g);text-decoration:underline}.prose table{width:100%;border-collapse:collapse;margin:1rem 0}.prose td,.prose th{border:1px solid var(--line);padding:.5rem}
.ic{width:1.05em;height:1.05em;vertical-align:-.17em;display:inline-block;flex-shrink:0}
.readmore{text-align:center}.readmore summary{cursor:pointer;list-style:none;display:inline-flex;align-items:center;gap:.4em;font-weight:700;color:var(--g-d);background:#fff;border:1.5px solid var(--g);padding:.6em 1.4em;border-radius:999px}
.readmore summary::-webkit-details-marker{display:none}.readmore summary::after{content:"▾"}.readmore[open] summary::after{content:"▴"}.readmore[open] summary{margin-bottom:1.3rem}
.readmore .prose{text-align:left}
@media(prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important}}
*:focus-visible{outline:2px solid var(--g);outline-offset:2px}
.pd-highlights{background:linear-gradient(135deg,#eef8ec,#fff8e9);border:1px solid var(--line);border-left:4px solid var(--g);border-radius:14px;padding:1.2rem 1.5rem;margin:1.5rem 0}
.pd-highlights h2{font-size:1.2rem;color:var(--g-d);display:flex;align-items:center;gap:.5em;margin:0 0 .8rem}
.pd-highlights ul{list-style:none;padding:0;margin:0;display:grid;grid-template-columns:1fr 1fr;gap:.5rem 1.5rem}
@media(max-width:680px){.pd-highlights ul{grid-template-columns:1fr}}
.pd-highlights li{position:relative;padding-left:1.6rem;color:#33433b;line-height:1.55}
.pd-highlights li::before{content:"✔";position:absolute;left:0;color:var(--g);font-weight:800}
.pd-highlights li strong{color:var(--ink)}
@keyframes pulse{0%{box-shadow:0 0 0 0 rgba(46,125,50,.5)}70%{box-shadow:0 0 0 14px rgba(46,125,50,0)}100%{box-shadow:0 0 0 0 rgba(46,125,50,0)}}