:root{--fh:'Montserrat','Inter',system-ui,sans-serif;--gold:#D4AF37;--gold-dark:#7A5C0E;--gold-light:#F3E3A0;--silver:#C0C4CC;--silver-light:#EEF0F3;--ink:#0F1115;--charcoal:#1B1E24;--white:#fff;--muted:#555b66;
--grad:linear-gradient(135deg,#F3E3A0,#D4AF37 50%,#8A6A12);--radius:14px;--shadow:0 8px 28px rgba(15,17,21,.10);--t:.2s}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{margin:0;font-family:'Inter',system-ui,-apple-system,'Segoe UI',Roboto,Arial,sans-serif;font-size:16px;line-height:1.7;color:var(--ink);background:var(--white)}
img{max-width:100%;height:auto;display:block}
a{color:var(--gold-dark);text-decoration-thickness:1px;text-underline-offset:3px}
a:hover{color:var(--ink)}
:focus-visible{outline:3px solid var(--gold);outline-offset:2px;border-radius:4px}
h1,h2,h3{line-height:1.25;margin:0 0 .6em;font-weight:800;letter-spacing:-.01em}
h1{font-size:clamp(1.75rem,4.2vw,2.9rem)}
h2{font-size:clamp(1.4rem,3vw,2.1rem)}
h3,.h3{font-size:1.15rem}
p{margin:0 0 1em}
ul,ol{padding-left:1.2em}
.wrap{width:100%;max-width:1200px;margin:0 auto;padding:0 16px}
.narrow{max-width:800px}
.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
.skip{position:absolute;left:-999px;top:8px;background:var(--gold);color:var(--ink);padding:8px 14px;z-index:100;border-radius:6px}
.skip:focus{left:8px}
.center{text-align:center}.muted{color:var(--muted)}.small{font-size:.875rem}
.hp{position:absolute;left:-9999px;height:0;overflow:hidden}

/* buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:.5em;padding:.8em 1.5em;border-radius:999px;font-weight:700;font-family:inherit;font-size:1rem;text-decoration:none;border:2px solid transparent;cursor:pointer;transition:transform var(--t),box-shadow var(--t),background var(--t),color var(--t)}
.btn-gold{background:var(--grad);color:var(--ink);box-shadow:0 4px 16px rgba(212,175,55,.35)}
.btn-gold:hover{transform:translateY(-2px);box-shadow:0 8px 22px rgba(212,175,55,.5);color:var(--ink)}
.btn-ghost{border-color:var(--gold);color:var(--gold-light);background:transparent}
.btn-ghost:hover{background:var(--gold);color:var(--ink)}
.btn-dark{background:var(--ink);color:var(--white)}
.btn-dark:hover{background:var(--charcoal);color:var(--gold-light);transform:translateY(-2px)}

/* header */
.site-header{position:sticky;top:0;z-index:50;background:var(--white);box-shadow:0 1px 0 rgba(15,17,21,.08)}
.topbar{display:none;background:var(--ink);color:#d9dbe0;font-size:.8125rem}
.topbar-in{display:flex;justify-content:space-between;gap:16px;padding-top:6px;padding-bottom:6px}
.topbar a{color:var(--gold-light);text-decoration:none;margin-left:16px}
.topbar a:hover{color:var(--white)}
.nav-bar{display:flex;align-items:center;justify-content:space-between;min-height:68px}
.brand img{width:auto;height:56px}
.nav-toggle{display:inline-flex;flex-direction:column;gap:5px;background:none;border:0;padding:10px;cursor:pointer}
.nav-toggle span{width:26px;height:3px;background:var(--ink);border-radius:2px;transition:transform var(--t),opacity var(--t)}
.nav-toggle[aria-expanded=true] span:nth-child(1){transform:translateY(8px) rotate(45deg)}
.nav-toggle[aria-expanded=true] span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded=true] span:nth-child(3){transform:translateY(-8px) rotate(-45deg)}
.nav{display:none;position:absolute;left:0;right:0;top:100%;background:var(--white);border-top:1px solid var(--silver-light);box-shadow:var(--shadow);max-height:calc(100vh - 68px);overflow:auto}
.nav.open{display:block}
.nav ul{list-style:none;margin:0;padding:8px 16px 16px}
.nav a{display:block;padding:12px 4px;color:var(--ink);text-decoration:none;font-weight:600;border-bottom:1px solid var(--silver-light)}
.nav a:hover,.nav a[aria-current=page]{color:var(--gold-dark)}
.nav .sub{padding:0 0 0 14px}.nav .sub a{font-weight:400;font-size:.9375rem}
.nav .nav-cta a{border:0;margin-top:12px}
@media(min-width:1024px){
 .topbar{display:block}
 .brand img{height:64px}
 .nav-toggle{display:none}
 .nav{display:block;position:static;box-shadow:none;border:0;max-height:none;overflow:visible;background:transparent}
 .nav>ul{display:flex;align-items:center;gap:4px;padding:0}
 .nav a{border:0;padding:10px 12px;border-radius:8px;position:relative}
 .nav a[aria-current=page]::after{content:"";position:absolute;left:12px;right:12px;bottom:4px;height:3px;border-radius:2px;background:var(--grad)}
 .nav .nav-cta a{margin:0 0 0 8px;padding:.65em 1.3em}
 .has-sub{position:relative}
 .nav .sub{display:none;position:absolute;top:100%;left:0;min-width:300px;background:var(--white);border-radius:12px;box-shadow:var(--shadow);padding:8px;border-top:3px solid var(--gold)}
 .has-sub:hover .sub,.has-sub:focus-within .sub{display:block}
 .nav .sub a{padding:10px 12px;font-weight:500}
 .nav .sub a:hover{background:var(--silver-light)}
}

/* hero */
.hero{background:radial-gradient(900px 500px at 85% 20%,rgba(212,175,55,.18),transparent 60%),var(--ink);color:var(--white);position:relative;overflow:hidden}
.hero::before{content:"";position:absolute;right:-120px;bottom:-140px;width:560px;height:560px;background:url(/img/gear.svg) no-repeat center/contain;opacity:.07;pointer-events:none}
.hero-in{display:grid;gap:32px;padding-top:40px;padding-bottom:48px;align-items:center;position:relative}
.eyebrow{color:var(--gold);font-weight:700;text-transform:uppercase;letter-spacing:.14em;font-size:.8125rem;margin-bottom:.8em}
.eyebrow.dark{color:var(--gold-dark)}
.hero h1{color:var(--white)}
.lead{font-size:1.0625rem;color:#d3d6dc}.lead.dark{color:var(--muted)}
.hero-btns{display:flex;flex-wrap:wrap;gap:12px;margin-top:24px}
.hero-img img{background:radial-gradient(circle at 50% 40%,#fff,#dfe2e7);border-radius:var(--radius);border:2px solid rgba(212,175,55,.5);box-shadow:0 20px 50px rgba(0,0,0,.5);aspect-ratio:16/10;object-fit:cover;width:100%}
@media(min-width:1024px){.hero-in{grid-template-columns:1.05fr 1fr;padding-top:72px;padding-bottom:80px;gap:56px}}

/* sections */
.sec{padding:56px 0}
.sec-silver{background:var(--silver-light)}
.sec-dark{background:var(--charcoal);color:var(--white)}
.sec-dark .lead{color:#c9ccd3}
.sec-head{text-align:center;max-width:720px;margin:0 auto 32px}
.sec-head.left{text-align:left;margin-left:0}
.sec-head h2 a{color:inherit;text-decoration:none}.sec-head h2 a:hover{color:var(--gold-dark)}
.page-head{background:var(--ink);color:var(--white);padding:44px 0 40px;position:relative;overflow:hidden;border-bottom:4px solid var(--gold)}
.page-head h1{color:var(--white);margin-bottom:.4em}
.page-head .lead{max-width:720px;margin:0}
.grid{display:grid;gap:20px}
.grid-2,.grid-3,.grid-4{grid-template-columns:1fr}
@media(min-width:640px){.grid-2,.grid-3,.grid-4{grid-template-columns:repeat(2,1fr)}}
@media(min-width:1024px){.grid-3{grid-template-columns:repeat(3,1fr)}.grid-4{grid-template-columns:repeat(4,1fr)}}
.two{display:grid;gap:32px}
@media(min-width:1024px){.two{grid-template-columns:1.4fr 1fr;gap:48px;align-items:start}.two.prod{grid-template-columns:1fr 1fr}}

.stats{list-style:none;margin:0;padding:0;display:grid;gap:16px;grid-template-columns:repeat(2,1fr);text-align:center}
.stats strong{display:block;font-size:clamp(1.25rem,3vw,1.75rem);font-weight:800;color:var(--gold-dark)}
.stats span{font-size:.9rem;color:var(--muted)}
@media(min-width:1024px){.stats{grid-template-columns:repeat(4,1fr)}}

/* cards */
.card{background:var(--white);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);border:1px solid rgba(15,17,21,.06);display:flex;flex-direction:column;transition:transform var(--t),box-shadow var(--t)}
.card:hover{transform:translateY(-4px);box-shadow:0 14px 34px rgba(15,17,21,.16)}
.card-img{display:block;background:radial-gradient(circle at 50% 40%,#fff,#e3e6ea);overflow:hidden}
.card-img img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform .4s}
.card:hover .card-img img{transform:scale(1.04)}
.card-body{padding:16px 18px 18px;display:flex;flex-direction:column;gap:2px;flex:1}
.card h3{margin-bottom:.3em;font-size:1.0625rem}
.card h3 a{color:var(--ink);text-decoration:none}.card h3 a:hover{color:var(--gold-dark)}
.card p{font-size:.9375rem;color:var(--muted);margin-bottom:.6em}
.meta{font-size:.8125rem!important;font-weight:600;color:var(--gold-dark)!important}
.card-actions{margin-top:auto;display:flex;flex-wrap:wrap;justify-content:space-between;gap:8px}
.link{font-weight:700;font-size:.9375rem;text-decoration:none;color:var(--gold-dark)}
.link:hover{text-decoration:underline;color:var(--ink)}
.tile{position:relative;display:block;border-radius:var(--radius);overflow:hidden;color:var(--white);text-decoration:none;min-height:260px;background:var(--ink)}
.tile img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;background:radial-gradient(circle at 50% 40%,#fff,#cfd3d9);opacity:.85;transition:transform .4s,opacity var(--t)}
.tile:hover img{transform:scale(1.06);opacity:.9}
.tile-body{position:absolute;inset:auto 0 0 0;padding:48px 16px 16px;display:flex;flex-direction:column;gap:4px;background:linear-gradient(to top,rgba(15,17,21,.95),transparent);font-size:.875rem}
.tile-body strong{font-size:1.05rem;color:var(--gold-light)}
.tile:hover{color:var(--white)}
.sol{display:block;padding:24px;border-radius:var(--radius);border:1px solid rgba(212,175,55,.35);background:rgba(255,255,255,.04);color:var(--white);text-decoration:none;transition:transform var(--t),border-color var(--t),background var(--t)}
.sol:hover{transform:translateY(-4px);border-color:var(--gold);background:rgba(212,175,55,.08);color:var(--white)}
.sol h3,.sol .h3{color:var(--gold-light)}
.sol p{color:#c9ccd3;font-size:.9375rem}
.sol-n{display:block;font-size:2rem;font-weight:800;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;margin-bottom:6px}
.sol.light{background:var(--white);color:var(--ink);box-shadow:var(--shadow);border:1px solid rgba(15,17,21,.06)}
.sol.light:hover{background:var(--white);color:var(--ink);border-color:var(--gold)}
.sol.light h2,.sol.light .h3{color:var(--ink)}.sol.light p{color:var(--muted)}
.steps{list-style:none;margin:0;padding:0;display:grid;gap:16px;counter-reset:s}
.steps li{counter-increment:s;background:var(--white);border-radius:var(--radius);padding:20px 18px 20px 72px;position:relative;box-shadow:var(--shadow);border:1px solid rgba(15,17,21,.06)}
.steps li::before{content:counter(s);position:absolute;left:18px;top:50%;transform:translateY(-50%);width:42px;height:42px;border-radius:50%;background:var(--grad);color:var(--ink);font-weight:800;display:grid;place-items:center}
.steps strong{display:block}.steps span{color:var(--muted);font-size:.9rem}
@media(min-width:1024px){.steps{grid-template-columns:repeat(5,1fr)}.steps li{padding:70px 16px 20px;text-align:center}.steps li::before{left:50%;top:18px;transform:translateX(-50%)}}

/* product / prose */
.prod-img img{background:radial-gradient(circle at 50% 40%,#fff,#e3e6ea);border-radius:var(--radius);box-shadow:var(--shadow);width:100%;aspect-ratio:16/10;object-fit:cover;border:1px solid rgba(15,17,21,.08)}
.specs{width:100%;border-collapse:collapse;margin:20px 0;font-size:.9375rem}
.specs th,.specs td{text-align:left;padding:10px 12px;border-bottom:1px solid var(--silver)}
.specs th{width:38%;background:var(--silver-light);font-weight:600}
.ticks{list-style:none;padding:0}
.ticks li{position:relative;padding-left:28px;margin-bottom:.5em}
.ticks li::before{content:"";position:absolute;left:0;top:.5em;width:14px;height:8px;border-left:3px solid var(--gold-dark);border-bottom:3px solid var(--gold-dark);transform:rotate(-45deg)}
.prose h2{margin-top:1.4em;font-size:1.4rem}
.prose p,.prose li{font-size:1.0313rem}
.post-img{border-radius:var(--radius);margin:20px 0;width:100%}
.panel{background:var(--white);border-radius:var(--radius);padding:24px;box-shadow:var(--shadow);color:var(--ink);border-top:4px solid var(--gold)}
.sec-dark .panel{box-shadow:none}
.panel.info{background:var(--silver-light);box-shadow:none}
.big-phones{display:flex;flex-wrap:wrap;gap:8px 24px;font-size:1.5rem;font-weight:800}
.big-phones a{color:var(--gold);text-decoration:none}.big-phones a:hover{color:var(--white)}

/* breadcrumbs / pager */
.crumbs{background:var(--silver-light);font-size:.875rem}
.crumbs ol{list-style:none;display:flex;flex-wrap:wrap;gap:4px;margin:0;padding:10px 0}
.crumbs li+li::before{content:"›";margin-right:6px;color:var(--muted)}
.crumbs a{color:var(--muted)}.crumbs [aria-current]{color:var(--ink);font-weight:600}
.pager{display:flex;justify-content:center;gap:8px;margin-top:32px}
.pager a{min-width:42px;padding:8px 12px;text-align:center;border-radius:8px;border:1px solid var(--silver);text-decoration:none;color:var(--ink)}
.pager a[aria-current=page]{background:var(--ink);color:var(--gold-light);border-color:var(--ink)}

/* forms */
.form{display:grid;gap:14px}
.row2{display:grid;gap:14px}
@media(min-width:640px){.row2{grid-template-columns:1fr 1fr}}
.field label{display:block;font-weight:600;font-size:.9rem;margin-bottom:4px}
.field input,.field textarea{width:100%;font:inherit;color:var(--ink);padding:12px 14px;border:1.5px solid var(--silver);border-radius:10px;background:var(--white);transition:border-color var(--t),box-shadow var(--t)}
.field input:focus,.field textarea:focus{border-color:var(--gold);box-shadow:0 0 0 3px rgba(212,175,55,.3);outline:0}
.field [aria-invalid=true]{border-color:#b3261e}
.err{color:#b3261e;font-size:.85rem;margin:4px 0 0}
.notice{padding:14px 16px;border-radius:10px;background:#eaf6ec;color:#14532d;margin-bottom:16px;border:1px solid #b7dfc0}
.notice.bad{background:#fdecea;color:#8c1d18;border-color:#f3b7b2}

/* cta + footer */
.cta{background:var(--grad);color:var(--ink)}
.cta-in{display:grid;gap:20px;padding-top:36px;padding-bottom:36px;align-items:center}
.cta h2{margin-bottom:.3em}.cta p{margin:0;font-weight:500}
.cta-btns{display:flex;flex-wrap:wrap;gap:12px}
.cta .btn-gold{background:var(--ink);color:var(--gold-light);box-shadow:none}
.cta .btn-gold:hover{color:var(--white)}
.cta .btn-ghost{border-color:var(--ink);color:var(--ink)}
.cta .btn-ghost:hover{background:var(--ink);color:var(--gold-light)}
@media(min-width:1024px){.cta-in{grid-template-columns:1fr auto}}
@media(min-width:640px){.foot-grid{grid-template-columns:1fr 1fr}}
@media(min-width:1024px){.foot-grid{grid-template-columns:1.2fr 1.5fr 1fr 1fr}}

/* floating contact */
@media(prefers-reduced-motion:reduce){*,*::before,*::after{transition:none!important;animation:none!important;scroll-behavior:auto!important}}

/* ===== Nâng cấp sang trọng ===== */
body{letter-spacing:.005em}
h1,h2{letter-spacing:-.015em}
.btn{letter-spacing:.02em}
.btn-sm{padding:.5em 1.1em;font-size:.875rem}
.brand img{height:60px}
@media(min-width:1024px){.brand img{height:68px}}
.sec{padding:72px 0}
.sec-head h2::after{content:"";display:block;width:64px;height:3px;margin:16px auto 0;background:var(--grad);border-radius:2px}
.sec-head.left h2::after{margin-left:0}
.sec-head .eyebrow{letter-spacing:.22em}
.sec-dark .sec-head h2{color:#fff}
.card{border-radius:16px;border:1px solid rgba(212,175,55,.18)}
.card:hover{border-color:var(--gold);box-shadow:0 18px 40px rgba(15,17,21,.18)}
.tile{border-radius:16px;box-shadow:0 10px 30px rgba(15,17,21,.18)}
.stats strong{font-size:clamp(1.5rem,3.2vw,2.1rem)}
.stats li{position:relative}
@media(min-width:1024px){.stats li+li::before{content:"";position:absolute;left:-8px;top:12%;height:76%;width:1px;background:linear-gradient(transparent,var(--silver),transparent)}}

/* Banner chuyển động */
.slider{position:relative;background:var(--ink);color:#fff;overflow:hidden;min-height:clamp(500px,76vh,720px);isolation:isolate}
.slides{position:absolute;inset:0}
.slide{position:absolute;inset:0;opacity:0;visibility:hidden;transition:opacity .9s ease,visibility .9s}
.slide.is-active{opacity:1;visibility:visible}
.slide-bg{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;background:#1b1e24;transform:scale(1.02)}
.slide.is-active .slide-bg{animation:kenburns 10s ease-out forwards}
@keyframes kenburns{to{transform:scale(1.1)}}
.slide::after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(11,13,16,.93) 0%,rgba(11,13,16,.72) 42%,rgba(11,13,16,.2) 100%),linear-gradient(0deg,rgba(11,13,16,.6),transparent 35%)}
.slide .wrap,.slider.static .wrap{position:relative;z-index:2;height:100%;display:flex;align-items:center}
.slider.static{display:flex;align-items:center}
.slide-text{max-width:660px;padding:40px 0 72px}
.slide-title{font-size:clamp(1.9rem,4.6vw,3.5rem);line-height:1.15;color:#fff;margin:0 0 .5em;font-weight:800;text-shadow:0 2px 24px rgba(0,0,0,.4)}
.slide.is-active .slide-text>*{animation:rise .8s both}
.slide.is-active .slide-text>*:nth-child(2){animation-delay:.12s}.slide.is-active .slide-text>*:nth-child(3){animation-delay:.24s}.slide.is-active .slide-text>*:nth-child(4){animation-delay:.36s}
@keyframes rise{from{opacity:0;transform:translateY(22px)}to{opacity:1;transform:none}}
.s-nav{position:absolute;top:50%;transform:translateY(-50%);z-index:4;width:48px;height:48px;border-radius:50%;border:1.5px solid rgba(212,175,55,.7);background:rgba(15,17,21,.45);color:var(--gold-light);font-size:1.8rem;line-height:1;cursor:pointer;display:none;transition:background var(--t),color var(--t)}
.s-nav:hover{background:var(--gold);color:var(--ink)}
.s-prev{left:18px}.s-next{right:18px}
@media(min-width:1024px){.s-nav{display:block}}
.s-ctl{position:absolute;left:0;right:0;bottom:22px;z-index:4;display:flex;align-items:center;gap:14px;justify-content:flex-start}
.s-dots{display:flex;gap:10px}
.s-dots button{width:34px;height:5px;padding:0;border:0;border-radius:3px;background:rgba(255,255,255,.35);cursor:pointer;position:relative}
.s-dots button[aria-current=true]{background:var(--gold)}
.s-dots button::before{content:"";position:absolute;inset:-12px -2px}
.s-pause{width:34px;height:34px;border-radius:50%;border:1.5px solid rgba(255,255,255,.5);background:transparent;color:#fff;cursor:pointer;font-size:.8rem}
.s-pause:hover{border-color:var(--gold);color:var(--gold)}

/* Đối tác */
.sec-partners{background:var(--white);padding-bottom:64px;border-top:1px solid var(--silver-light)}
.marquee{overflow:hidden;-webkit-mask-image:linear-gradient(90deg,transparent,#000 8%,#000 92%,transparent);mask-image:linear-gradient(90deg,transparent,#000 8%,#000 92%,transparent)}
.marquee-track{display:flex;align-items:center;gap:64px;list-style:none;margin:0;padding:8px 32px;width:max-content;animation:marq 45s linear infinite}
.marquee:hover .marquee-track{animation-play-state:paused}
@keyframes marq{to{transform:translateX(-50%)}}
.marquee-track img{height:60px;width:auto;max-width:180px;object-fit:contain;filter:grayscale(1);opacity:.7;transition:filter var(--t),opacity var(--t)}
.marquee-track a:hover img,.marquee-track img:hover{filter:none;opacity:1}

/* Chân trang */
@media(min-width:1024px){.foot-grid{grid-template-columns:1.25fr 1.35fr 1fr 1.1fr;gap:40px}}

/* Nội dung rich text */
.prose h2{margin-top:1.6em}
.prose ul{margin-bottom:1em}
.lead-prose{color:var(--muted);margin-bottom:1em}
.prose img{border-radius:12px}

@media(prefers-reduced-motion:reduce){
  .slide.is-active .slide-bg,.slide.is-active .slide-text>*{animation:none!important}
  .marquee{-webkit-mask-image:none;mask-image:none}
  .marquee-track{animation:none;flex-wrap:wrap;justify-content:center;width:auto}
  .marquee-track li[aria-hidden=true]{display:none}
}


/* ===== v3: font & chân trang chuyên nghiệp ===== */
h1,h2,h3,.h3,.btn,.eyebrow,.nav a,.stats strong,.slide-title,.sol-n,.steps strong,.tile-body strong,.big-phones,.fab a,.fab-toggle,.pager a,.link,.meta{font-family:var(--fh)}
h1,h2{font-weight:800;letter-spacing:-.02em}
h3,.h3{font-weight:700}
.btn{font-weight:700;letter-spacing:.01em;font-size:.9375rem}
.nav a{font-weight:600;font-size:.9375rem}
.eyebrow{font-weight:700;font-size:.75rem;letter-spacing:.2em}
.lead,.card p{font-weight:400}
.slide-title{font-weight:800;letter-spacing:-.02em}
.card h3{font-size:1.05rem;line-height:1.35}

/* CTA: dải vàng sáng, chữ đen */
.cta{background:linear-gradient(100deg,#EBD98F,#D9B745 55%,#CFA92E)}

/* Trang sản phẩm */
.prod-img{position:sticky;top:96px;align-self:start}

/* Chân trang */
.site-footer{background:#0c0e11;color:#b4b8c0;font-size:.9375rem;position:relative}
.site-footer a{color:#e9dfb5;text-decoration:none;transition:color var(--t)}
.site-footer a:hover{color:var(--gold)}
.foot-top{height:4px;background:var(--grad)}
.foot-contact{background:#14171c;border-bottom:1px solid rgba(255,255,255,.07)}
.fc-grid{display:grid;grid-template-columns:1fr;gap:0}
.fc{padding:22px 0;border-bottom:1px solid rgba(255,255,255,.07)}
.fc:last-child{border-bottom:0}
.fc-l{display:block;font-family:var(--fh);font-size:.6875rem;font-weight:700;letter-spacing:.18em;text-transform:uppercase;color:var(--gold);margin-bottom:6px}
.fc p{margin:0;line-height:1.6;color:#d6d9df}
.fc-big{display:flex;flex-wrap:wrap;gap:2px 18px;font-family:var(--fh);font-weight:700;font-size:1.0625rem}
.fc-big a{color:#fff}
@media(min-width:768px){.fc-grid{grid-template-columns:1fr 1fr}.fc:nth-child(odd){padding-right:24px}.fc:nth-child(even){padding-left:24px;border-left:1px solid rgba(255,255,255,.07)}.fc:nth-last-child(-n+2){border-bottom:0}}
@media(min-width:1100px){
  .fc-grid{grid-template-columns:1.3fr 1.3fr 1fr 1fr}
  .fc{padding:30px 28px;border-bottom:0;border-left:1px solid rgba(255,255,255,.07)!important}
  .fc:first-child{padding-left:0;border-left:0!important}
  .fc:last-child{padding-right:0}
}
.foot-main{display:grid;gap:36px;padding-top:52px;padding-bottom:44px}
@media(min-width:768px){.foot-main{grid-template-columns:1fr 1fr}.foot-brand{grid-column:1/-1}}
@media(min-width:1100px){.foot-main{grid-template-columns:1.5fr .9fr .9fr 1.3fr;gap:48px}.foot-brand{grid-column:auto}}
.foot-brand img{height:84px;width:auto;margin:0 0 14px -6px}
.foot-name{font-family:var(--fh);font-weight:700;color:#fff;font-size:.9375rem;line-height:1.45;margin:0 0 10px;text-transform:uppercase;letter-spacing:.02em}
.foot-about{color:#9aa0ab;margin:0 0 18px;max-width:420px;line-height:1.7}
.social{list-style:none;display:flex;flex-wrap:wrap;gap:8px;padding:0;margin:0}
.social a{display:inline-block;padding:7px 16px;border:1px solid rgba(212,175,55,.45);border-radius:999px;font-size:.8125rem;font-weight:600;font-family:var(--fh)}
.social a:hover{background:var(--gold);color:var(--ink)}
.foot-h{font-family:var(--fh);font-size:.8125rem;font-weight:700;letter-spacing:.16em;text-transform:uppercase;color:#fff;margin:0 0 20px;padding-bottom:12px;position:relative}
.foot-h::after{content:"";position:absolute;left:0;bottom:0;width:32px;height:2px;background:var(--grad)}
.foot-list{list-style:none;margin:0;padding:0}
.foot-list li{margin:0 0 11px}
.foot-list a{color:#b4b8c0}
.foot-list a:hover{color:var(--gold);padding-left:4px}
.foot-list a{transition:color var(--t),padding var(--t)}
.fb-box{border-radius:10px;overflow:hidden;background:#fff;max-width:340px;margin-bottom:14px}
.fb-box iframe{display:block;border:0;width:100%;height:230px}
.foot-bottom{background:#07080a;border-top:1px solid rgba(255,255,255,.06)}
.fb-in{display:flex;flex-wrap:wrap;justify-content:space-between;gap:8px 24px;padding-top:18px;padding-bottom:84px;font-size:.8125rem;color:#808690}
@media(min-width:1100px){.fb-in{padding-bottom:20px}}
.foot-bottom a{color:#b4b8c0}
.foot-list.dark a{color:var(--ink)}
address{font-style:normal}

/* v3b: tinh chỉnh khoảng cách */
.sec .center{margin-top:40px}
.sec-silver .stats{padding:12px 0}
.slide-title{font-size:clamp(1.8rem,4vw,3.05rem)}
.brand img{height:64px}
@media(min-width:1024px){.brand img{height:74px}}
.ticks.light li{color:#d6d9df}
.ticks.light li::before{border-color:var(--gold)}
.card-actions{padding-top:10px;border-top:1px solid var(--silver-light);margin-top:auto}
.card-body p:not(.meta){flex:1 1 auto}
.tile-body span{line-height:1.5}
@media(max-width:639px){
  .sec{padding:52px 0}
  .slide-text{padding-bottom:64px}
}

/* Lưới tự co giãn: số sản phẩm ít vẫn cân đối */
.grid-auto{grid-template-columns:repeat(auto-fit,minmax(260px,1fr))}
.grid-auto:not(.wide){grid-template-columns:repeat(auto-fit,minmax(260px,1fr));align-items:stretch}
.cat-block{display:grid;gap:28px}
.cat-intro h2{font-size:clamp(1.4rem,2.4vw,1.9rem)}
.cat-intro h2 a{color:inherit;text-decoration:none}.cat-intro h2 a:hover{color:var(--gold-dark)}
.cat-intro .muted{margin-bottom:1.2em}
@media(min-width:1024px){
  .cat-block{grid-template-columns:300px 1fr;gap:48px;align-items:start}
  .cat-intro{position:sticky;top:110px}
}
.grid-auto.wide{grid-template-columns:repeat(auto-fit,minmax(280px,380px));justify-content:start}

/* Logo thật */
.brand img{height:56px;width:auto}
@media(min-width:1024px){.brand img{height:68px}}
.nav-bar{min-height:76px}
.foot-brand img{height:110px;width:auto;margin:0 0 16px}
.brand img{height:60px}
@media(min-width:1024px){.brand img{height:78px}.nav-bar{min-height:90px}}
.foot-brand img{height:130px}


/* ===== Menu: mục đang xem sáng lên ===== */
@media(min-width:1024px){
  .nav a{border-radius:999px;padding:10px 16px;transition:background var(--t),color var(--t),box-shadow var(--t)}
  .nav a::after{display:none!important}
  .nav a:hover{background:rgba(212,175,55,.16);color:var(--ink)}
  .nav a[aria-current=page]{color:#4a3504;background:linear-gradient(180deg,#FFF4C9,#F0DA86);box-shadow:0 0 0 1px rgba(212,175,55,.85),0 6px 18px rgba(212,175,55,.38)}
  .nav .nav-cta a:hover{background:var(--grad);color:var(--ink)}
  .nav .sub a{border-radius:8px}
  .nav .sub a[aria-current=page]{box-shadow:none;background:#FFF1BD}
}
@media(max-width:1023px){
  .nav a[aria-current=page]{color:#4a3504;background:linear-gradient(90deg,#FFF4C9,#fff);border-left:4px solid var(--gold);padding-left:12px}
}

/* ===== Nút liên hệ nhanh: nhỏ, mờ, bấm mới sáng ===== */
.fab{position:fixed;right:14px;bottom:14px;z-index:60;display:flex;flex-direction:column;align-items:flex-end;gap:8px}
.fab-list{list-style:none;margin:0;padding:8px;display:flex;flex-direction:column;gap:6px;background:rgba(15,17,21,.86);border:1px solid rgba(212,175,55,.35);border-radius:14px;box-shadow:0 10px 28px rgba(0,0,0,.35);-webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px)}
.js .fab-list{display:none}
.js .fab.open .fab-list{display:flex;animation:fabIn .18s ease-out}
@keyframes fabIn{from{opacity:0;transform:translateY(6px)}to{opacity:1;transform:none}}
.fab-list a{display:block;padding:7px 14px;border-radius:999px;font-weight:600;font-size:.8125rem;text-decoration:none;white-space:nowrap;text-align:center;box-shadow:none}
.fab-zalo{background:#0068FF;color:#fff}.fab-zalo:hover{background:#0050c8;color:#fff}
.fab-call{background:var(--grad);color:var(--ink)}.fab-call:hover{color:var(--ink);filter:brightness(1.06)}
.fab-fb{background:#1877F2;color:#fff}.fab-fb:hover{background:#1264cf;color:#fff}
.fab-toggle{display:none;width:44px;height:44px;border-radius:50%;padding:0;cursor:pointer;align-items:center;justify-content:center;color:var(--gold-light);background:rgba(15,17,21,.5);border:1.5px solid rgba(212,175,55,.5);opacity:.55;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);transition:opacity var(--t),background var(--t),transform var(--t)}
.js .fab-toggle{display:inline-flex}
.fab-toggle:hover,.fab-toggle:focus-visible,.fab.open .fab-toggle{opacity:1;background:var(--ink);border-color:var(--gold);transform:scale(1.06)}
@media(max-width:639px){.fab{right:10px;bottom:10px}.fab-toggle{width:40px;height:40px}}
.fb-box iframe{height:520px}
.fb-box{max-width:340px}
.foot-fan .fb-box{margin-bottom:0}

@media(min-width:1100px){.foot-main{grid-template-columns:1.25fr .95fr .8fr 300px;gap:40px}}
.fb-box{max-width:300px}.fb-box iframe{height:420px}
@media(max-width:1099px){.fb-box{max-width:100%}.fb-box iframe{width:100%}}

/* Khung Fanpage gọn */
.fb-box{max-width:300px;border-radius:12px;overflow:hidden;background:#fff;border:1px solid rgba(212,175,55,.55);box-shadow:0 8px 24px rgba(0,0,0,.35)}
.fb-box iframe{display:block;border:0;width:100%;height:135px}
@media(max-width:1099px){.fb-box{max-width:300px}.fb-box iframe{width:300px}}

/* Đường dẫn (breadcrumb) tinh gọn */
.crumbs{background:#fff;border-bottom:1px solid var(--silver-light);font-size:.8125rem}
.crumbs ol{padding:14px 0;gap:2px 10px;align-items:center}
.crumbs li{display:flex;align-items:center;gap:10px}
.crumbs li+li::before{content:"";width:6px;height:6px;margin:0;border-top:1.5px solid var(--gold);border-right:1.5px solid var(--gold);transform:rotate(45deg)}
.crumbs a{color:#6b7280;text-decoration:none;font-weight:500;transition:color var(--t)}
.crumbs a:hover{color:var(--gold-dark)}
.crumbs [aria-current]{font-family:var(--fh);font-weight:700;color:var(--gold-dark);letter-spacing:.01em}


/* ===== Quy trình: ô màu vàng kem nhẹ, đậm dần theo từng bước ===== */
.sec-steps{background:linear-gradient(180deg,#fff 0%,#FBF5E1 50%,#fff 100%)}
.steps{gap:18px}
.steps li{--tint:#FFFDF5;position:relative;overflow:hidden;border:1px solid rgba(212,175,55,.45);border-radius:16px;box-shadow:0 12px 30px rgba(122,92,14,.10);
  background:linear-gradient(90deg,#F3E3A0,#D4AF37 55%,#8A6A12) top/100% 4px no-repeat,linear-gradient(165deg,#fff 0%,var(--tint) 100%);
  transition:transform var(--t),box-shadow var(--t),border-color var(--t)}
.steps li:nth-child(1){--tint:#FFFCF0}.steps li:nth-child(2){--tint:#FFF9E6}.steps li:nth-child(3){--tint:#FFF5D9}.steps li:nth-child(4){--tint:#FEF0CB}.steps li:nth-child(5){--tint:#FCEBBC}
.steps li:hover{transform:translateY(-5px);border-color:var(--gold);box-shadow:0 18px 38px rgba(122,92,14,.18)}
.steps li::after{content:counter(s,decimal-leading-zero);position:absolute;right:12px;bottom:-16px;font-family:var(--fh);font-weight:800;font-size:5.5rem;line-height:1;color:rgba(212,175,55,.14);pointer-events:none}
.steps li::before{box-shadow:0 0 0 6px rgba(212,175,55,.2),0 6px 14px rgba(122,92,14,.25);font-family:var(--fh);font-weight:800}
.steps strong{font-family:var(--fh);font-size:1.0625rem;color:var(--ink)}
.steps span{color:#5f5a4a;position:relative;z-index:1}