:root{--g9:#10301f;--g8:#164029;--g7:#1f5a3a;--g5:#3f8f5b;--leaf:#a8d88a;--gold:#c9962f;--gold2:#e0ad3f;--cream:#f8f4e9;--tint:#f1f5ec;--ink:#1c2a22;--muted:#5d6b62;--line:#dfe6d9;--white:#fff;--r:16px;--sh:0 10px 30px rgba(16,48,31,.10);--sans:'Be Vietnam Pro',system-ui,-apple-system,'Segoe UI',Roboto,Arial,sans-serif;--serif:'Playfair Display',Georgia,'Times New Roman',serif}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:84px;-webkit-text-size-adjust:100%}
body{margin:0;font-family:var(--sans);color:var(--ink);background:var(--white);line-height:1.65;font-size:16px;padding-bottom:64px}
img{max-width:100%;height:auto;display:block}
a{color:var(--g7);text-decoration:none}a:hover{text-decoration:underline}
h1,h2,h3,h4{font-family:var(--serif);line-height:1.2;margin:0 0 .5em;color:var(--g8)}
h1{font-size:clamp(1.9rem,4.6vw,3rem)}h2{font-size:clamp(1.55rem,3.2vw,2.3rem)}h3{font-size:1.2rem}
p{margin:0 0 1em}
.wrap{width:min(1160px,100% - 32px);margin-inline:auto}.narrow{width:min(820px,100% - 32px)}
.skip{position:absolute;left:-999px;top:0;background:#fff;padding:10px 14px;z-index:99}.skip:focus{left:8px;top:8px}
.muted{color:var(--muted)}.small{font-size:.85rem}.hp{position:absolute!important;left:-9999px;width:1px;height:1px;opacity:0}

/* nút */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:2px solid transparent;border-radius:999px;padding:11px 22px;font:600 .95rem var(--sans);cursor:pointer;transition:.2s;text-decoration:none!important;line-height:1.2}
.btn-lg{padding:15px 30px;font-size:1.02rem}.btn-block{width:100%}
.btn-gold{background:linear-gradient(180deg,var(--gold2),var(--gold));color:#2a1d02;box-shadow:0 6px 16px rgba(201,150,47,.35)}.btn-gold:hover{transform:translateY(-1px);filter:brightness(1.05)}
.btn-ghost{border-color:var(--g7);color:var(--g7);background:transparent}.btn-ghost:hover{background:var(--g7);color:#fff}
.btn-ghost-light{border-color:rgba(255,255,255,.7);color:#fff}.btn-ghost-light:hover{background:#fff;color:var(--g8)}
.btn:focus-visible,a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible,summary:focus-visible{outline:3px solid var(--gold2);outline-offset:2px}

/* header */
.topbar{background:var(--g9);color:#dbe9dd;font-size:.82rem}.topbar .wrap{display:flex;justify-content:space-between;gap:12px;padding:7px 0}.topbar a{color:#fff}
.site-header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.96);backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}
.bar{display:flex;align-items:center;gap:20px;min-height:68px}
.logo{display:flex;align-items:center;gap:10px;color:var(--g8)!important;text-decoration:none!important}
.logo-text{display:flex;flex-direction:column;line-height:1.1}.logo-text b{font:700 1.2rem var(--serif)}.logo-text small{font-size:.7rem;color:var(--muted);letter-spacing:.04em}
.logo.on-dark{color:#fff!important}.logo.on-dark small{color:#bcd3c1}
.nav{display:flex;gap:4px;margin-left:auto}.nav a{padding:8px 12px;border-radius:999px;color:var(--ink);font-weight:500;font-size:.94rem}.nav a:hover{background:var(--tint);text-decoration:none}
.bar-actions{display:flex;align-items:center;gap:10px}
.cart-btn{position:relative;width:44px;height:44px;border-radius:50%;display:grid;place-items:center;background:var(--tint);color:var(--g7)}.cart-btn:hover{background:var(--g7);color:#fff}
.cart-count{position:absolute;top:-4px;right:-4px;background:var(--gold);color:#2a1d02;font:700 .72rem var(--sans);min-width:20px;height:20px;border-radius:10px;display:grid;place-items:center;padding:0 5px}
.menu-btn{display:none;width:44px;height:44px;border:0;background:var(--tint);border-radius:50%;cursor:pointer;flex-direction:column;gap:5px;align-items:center;justify-content:center}.menu-btn span{width:18px;height:2px;background:var(--g8);display:block}

/* hero */
.hero{background:radial-gradient(900px 500px at 80% 30%,#2c7a4d 0,transparent 60%),linear-gradient(135deg,var(--g9),var(--g7));color:#fff;overflow:hidden}
.hero-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:30px;align-items:center;padding:56px 0 64px}
.hero h1{color:#fff}.hero h1 em{display:block;font-style:normal;color:var(--leaf);font-size:.62em;margin-top:.35em;font-family:var(--sans);font-weight:600}
.hero p{color:#e4efe6;font-size:1.06rem;max-width:56ch}
.eyebrow{display:inline-block;font:700 .78rem var(--sans);letter-spacing:.12em;text-transform:uppercase;color:var(--gold);margin-bottom:10px}
.hero .eyebrow{color:var(--gold2)}
.hero-cta{display:flex;flex-wrap:wrap;gap:12px;margin:22px 0}
.hero-badges{list-style:none;display:flex;flex-wrap:wrap;gap:8px 18px;padding:0;margin:0;color:#cfe3d3;font-size:.9rem}.hero-badges li::before{content:"✓ ";color:var(--leaf);font-weight:700}
.hero-img img{margin-inline:auto;border-radius:24px;box-shadow:0 28px 60px rgba(0,0,0,.45);border:4px solid rgba(255,255,255,.12)}

/* usp */
.usp{background:#fff;border-bottom:1px solid var(--line)}.usp ul{list-style:none;margin:0;padding:18px 0;display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.usp li{display:flex;gap:12px;align-items:center}.usp .ico{flex:0 0 42px;height:42px;border-radius:12px;background:var(--tint);color:var(--g7);display:grid;place-items:center;font-size:1.1rem}
.usp b{display:block;font-size:.95rem;line-height:1.3}.usp small{color:var(--muted);font-size:.8rem}

/* section */
.section{padding:72px 0}.tint{background:var(--tint)}.dark{background:linear-gradient(160deg,var(--g9),var(--g7));color:#e4efe6}
.sec-head{text-align:center;max-width:720px;margin:0 auto 38px}.sec-head p{color:var(--muted)}
.sec-head.light h2{color:#fff}.sec-head.light p{color:#cfe3d3}.sec-head.light .eyebrow{color:var(--gold2)}
.two{display:grid;grid-template-columns:1fr 1fr;gap:44px;align-items:center}
.grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}.grid2{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.card{background:#fff;border:1px solid var(--line);border-radius:var(--r);box-shadow:var(--sh)}
.about-img{display:grid;grid-template-columns:1fr 1fr;gap:12px;align-items:end}.about-img img{width:100%;height:100%;object-fit:cover;border-radius:18px;box-shadow:var(--sh);aspect-ratio:3/4}.about-img img+img{aspect-ratio:1/1;margin-bottom:0}

/* sản phẩm */
.pcard{overflow:hidden;display:flex;flex-direction:column;transition:.25s}.pcard:hover{transform:translateY(-4px);box-shadow:0 18px 40px rgba(16,48,31,.16)}
.pimg{position:relative;display:block;background:linear-gradient(180deg,#0f2a1c,#1d4a30);aspect-ratio:4/5}.pimg img{width:100%;height:100%;object-fit:cover}
.badge{position:absolute;top:12px;left:12px;z-index:1;background:var(--gold);color:#2a1d02;font:700 .72rem var(--sans);padding:5px 11px;border-radius:999px}
.pbody{padding:20px;display:flex;flex-direction:column;gap:6px;flex:1}.pbody h3{margin:0}.pbody h3 a{color:var(--g8)}.pbody p{color:var(--muted);font-size:.93rem;margin:0}
.pprice{margin:6px 0 8px}.pprice b{font:700 1.45rem var(--serif);color:var(--g7)}.pprice span{color:var(--muted);font-size:.9rem}
.pbtns{display:flex;gap:10px;flex-wrap:wrap;margin-top:auto}

/* bảng so sánh */
.tbl-wrap{overflow-x:auto;border-radius:var(--r);border:1px solid var(--line);box-shadow:var(--sh);background:#fff}
.cmp{width:100%;border-collapse:collapse;min-width:720px}.cmp th,.cmp td{padding:14px 16px;text-align:left;vertical-align:top;border-bottom:1px solid var(--line);font-size:.93rem}
.cmp thead th{background:var(--g8);color:#fff;font:700 1.05rem var(--serif)}.cmp thead a{color:#fff}.cmp tbody th{background:var(--tint);width:130px;color:var(--g8)}
.cmp .price-row td{background:#fffaf0}.cmp.spec{min-width:0}.cmp.spec th{width:160px}

/* lý do */
.reason{background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.14);border-radius:var(--r);padding:26px}.reason h3{color:#fff;margin-top:8px}.reason p{margin:0;color:#cfe3d3;font-size:.95rem}
.num{display:grid;place-items:center;width:40px;height:40px;border-radius:50%;background:var(--gold);color:#2a1d02;font:700 1.1rem var(--serif)}

/* đánh giá */
.review{padding:26px;margin:0}.stars{color:var(--gold);letter-spacing:3px;margin-bottom:8px}.review blockquote{margin:0 0 14px;font-size:1.02rem}.review figcaption{color:var(--muted);font-size:.9rem}.review figcaption b{color:var(--g8)}

/* faq */
.faq{background:#fff;border:1px solid var(--line);border-radius:12px;margin-bottom:12px}.faq summary{cursor:pointer;padding:16px 20px;font-weight:600;list-style:none;display:flex;justify-content:space-between;gap:14px}
.faq summary::-webkit-details-marker{display:none}.faq summary::after{content:"+";font-size:1.4rem;line-height:1;color:var(--gold)}.faq[open] summary::after{content:"−"}.faq p{padding:0 20px 18px;margin:0;color:var(--muted)}

/* đặt hàng */
.order{background:linear-gradient(160deg,var(--g9),var(--g7))}
.order-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:24px;align-items:start}.o-box,.o-form{padding:26px}.o-box h3,.o-form h3{font-family:var(--sans);font-weight:700;font-size:1.05rem}
.o-row{display:grid;grid-template-columns:64px 1fr auto 100px;gap:12px;align-items:center;padding:12px 0;border-bottom:1px dashed var(--line)}
.o-row img{border-radius:10px;background:#143a26;object-fit:cover;width:64px;height:64px}.o-info b{display:block}.o-info span{font-size:.85rem;color:var(--muted)}
.qty{display:flex;align-items:center;border:1px solid var(--line);border-radius:999px;overflow:hidden}.qty button{width:34px;height:36px;border:0;background:var(--tint);font-size:1.15rem;cursor:pointer;color:var(--g8)}.qty button:hover{background:var(--leaf)}
.qty input{width:44px;text-align:center;border:0;font:600 1rem var(--sans);-moz-appearance:textfield;background:#fff;height:36px}.qty input::-webkit-outer-spin-button,.qty input::-webkit-inner-spin-button{-webkit-appearance:none}
.o-line{text-align:right;font-weight:600;color:var(--g7);font-size:.93rem}.o-row.on{background:#f7fbf3}
.o-total{display:flex;justify-content:space-between;padding:10px 0;color:var(--muted)}.o-total .free{color:var(--g5)}.o-total.grand{border-top:2px solid var(--g7);margin-top:6px;color:var(--ink);font-size:1.15rem}.o-total.grand b{font:700 1.5rem var(--serif);color:var(--g7)}
.o-form label{display:block;font-weight:600;font-size:.88rem;margin-bottom:14px}
.o-form input,.o-form textarea{display:block;width:100%;margin-top:6px;padding:12px 14px;border:1.5px solid var(--line);border-radius:12px;font:400 1rem var(--sans);background:#fff;color:var(--ink)}
.o-form input:focus,.o-form textarea:focus{border-color:var(--g5);outline:none;box-shadow:0 0 0 3px rgba(63,143,91,.2)}
.o-form .err{border-color:#c0392b!important}
.form-msg{min-height:0;margin:0 0 10px;font-size:.92rem}.form-msg.bad{color:#b03a2e;background:#fdecea;padding:10px 12px;border-radius:10px}.form-msg.ok{color:#14532d;background:#e6f4ea;padding:14px;border-radius:10px;font-weight:600}

/* trang sản phẩm */
.crumbs{padding:16px 0 0;font-size:.88rem;color:var(--muted)}.pdetail{padding-top:28px}
.pd-img{overflow:hidden;background:linear-gradient(180deg,#0f2a1c,#1d4a30)}.pd-img img{width:100%;aspect-ratio:4/5;object-fit:cover}
.pd-price{margin:8px 0 14px}.pd-price b{font:700 2rem var(--serif);color:var(--g7)}.pd-price span{color:var(--muted)}
.lead{font-size:1.05rem}.ticks{list-style:none;padding:0;margin:0 0 22px}.ticks li::before{content:"✓ ";color:var(--g5);font-weight:700}

/* footer */
.footer{background:var(--g9);color:#bcd3c1;padding:52px 0 0}.fgrid{display:grid;grid-template-columns:1.3fr 1fr 1.3fr 1.2fr;gap:30px}
.footer h4{color:#fff;font-family:var(--sans);font-size:1rem}.footer ul{list-style:none;padding:0;margin:0;display:grid;gap:8px;font-size:.93rem}.footer a{color:#e2f0e4}
.copy{border-top:1px solid rgba(255,255,255,.12);margin-top:34px;padding:18px 0;font-size:.85rem}

/* thanh liên hệ mobile + toast */
.mbar{display:none}
.toast{position:fixed;left:50%;bottom:84px;transform:translate(-50%,20px);background:var(--g9);color:#fff;padding:12px 20px;border-radius:999px;opacity:0;pointer-events:none;transition:.3s;z-index:90;font-size:.92rem;box-shadow:var(--sh);max-width:90vw}.toast.show{opacity:1;transform:translate(-50%,0)}
.reveal{opacity:0;transform:translateY(18px);transition:opacity .6s,transform .6s}.reveal.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition:none!important}.reveal{opacity:1;transform:none}}

@media (max-width:980px){
 .nav{position:absolute;top:100%;left:0;right:0;flex-direction:column;background:#fff;padding:10px 16px 16px;border-bottom:1px solid var(--line);display:none;box-shadow:var(--sh)}.nav.open{display:flex}.nav a{padding:12px}
 .menu-btn{display:flex}.bar-actions{margin-left:auto}.hide-sm{display:none}
 .hero-grid,.two,.order-grid{grid-template-columns:1fr}.hero-img{order:-1;max-width:420px;margin-inline:auto}.hero-grid{padding:32px 0 44px}
 .grid3{grid-template-columns:1fr}.grid2{grid-template-columns:1fr}.usp ul{grid-template-columns:repeat(2,1fr)}.fgrid{grid-template-columns:1fr 1fr}.section{padding:52px 0}
 .site-header{position:sticky}
}
@media (max-width:640px){
 .topbar span{display:none}.topbar .wrap{justify-content:center}
 .o-row{grid-template-columns:56px 1fr auto;grid-template-areas:"i n q" "i n l"}.o-row img{grid-area:i;width:56px;height:56px}.o-info{grid-area:n}.qty{grid-area:q}.o-line{grid-area:l;text-align:right}
 .fgrid{grid-template-columns:1fr}.hero-cta .btn{flex:1 1 100%}.o-box,.o-form{padding:18px}
 .mbar{display:grid;grid-template-columns:1fr 1fr 1.3fr;position:fixed;left:0;right:0;bottom:0;z-index:80;background:#fff;border-top:1px solid var(--line);box-shadow:0 -6px 20px rgba(0,0,0,.08)}
 .mbar a{padding:14px 6px;text-align:center;font-weight:600;font-size:.92rem;color:var(--g8);text-decoration:none}.mbar a.go{background:var(--gold);color:#2a1d02}
 .cmp{min-width:0}.cmp thead{display:none}.cmp tr{display:block;border-bottom:8px solid var(--tint)}.cmp tbody th{display:block;width:auto}.cmp td{display:block;border:0;padding:8px 16px}.cmp td::before{content:attr(data-label)": ";font-weight:700;color:var(--g8)}
 .cmp.spec td::before{content:none}.cmp.spec th{display:block;width:auto}
}

/* video + thư viện */
.video-box{border-radius:20px;overflow:hidden;box-shadow:var(--sh);background:#000;aspect-ratio:9/16;max-width:360px;margin-inline:auto}.video-box video{width:100%;height:100%;display:block;object-fit:contain;background:#000}
.gallery{columns:4 220px;column-gap:14px}.gallery figure{margin:0 0 14px;break-inside:avoid;border-radius:14px;overflow:hidden;box-shadow:var(--sh)}.gallery img{width:100%;height:auto;display:block;transition:transform .4s}.gallery figure:hover img{transform:scale(1.04)}