:root{--navy:#0b1230;--blue:#1d4e89;--ink:#182344;--mist:#f4f1fb;--aqua:#b6a3ff;--violet:#8064dc;--violet-deep:#513a9f;--water:#96d5f2;--gold:#d8ad62;--orange:#ff965c;--mint:#e5defb;--white:#fcfbff;--line:rgba(18,21,61,.13);--shadow:0 28px 80px rgba(42,27,91,.15)}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--white);color:var(--ink);font-family:"DM Sans","Avenir Next",sans-serif;overflow-x:hidden}a{color:inherit;text-decoration:none}.noise{position:fixed;inset:0;pointer-events:none;opacity:.035;z-index:20;background-image:url("data:image/svg+xml,%3Csvg viewBox='0 0 180 180' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.8' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='.5'/%3E%3C/svg%3E")}.site-header{height:78px;display:flex;align-items:center;justify-content:space-between;padding:0 clamp(24px,5vw,80px);position:absolute;top:0;left:0;right:0;z-index:10;color:var(--white)}.brand,.footer-brand{display:flex;align-items:center;gap:11px;font-family:Manrope,sans-serif;font-weight:800;letter-spacing:.18em;font-size:15px}.brand img,.footer-brand img{width:31px;height:31px;object-fit:contain;border-radius:50%}.main-nav{display:flex;gap:34px;margin-left:auto;margin-right:45px;font-size:12px;letter-spacing:.08em;text-transform:uppercase;opacity:.82}.main-nav a{transition:opacity .25s}.main-nav a:hover{opacity:.6}.header-call{font-size:13px;display:flex;gap:12px;align-items:center;border:1px solid rgba(255,255,255,.3);border-radius:99px;padding:10px 15px}.header-call span{opacity:.55;font-size:11px}.menu-toggle{display:none;background:none;border:0;color:white}.hero{min-height:810px;background:radial-gradient(circle at 78% 24%,rgba(105,215,190,.34),transparent 28%),linear-gradient(118deg,#071c35 0%,#0b3456 58%,#185a70 100%);color:var(--white);position:relative;overflow:hidden;padding:145px clamp(24px,8vw,130px) 80px}.section-grid{display:grid;grid-template-columns:1fr 1fr;gap:clamp(35px,7vw,115px);align-items:center}.hero-copy{max-width:600px;position:relative;z-index:2}.eyebrow{display:flex;align-items:center;gap:10px;text-transform:uppercase;letter-spacing:.16em;font-size:10px;font-weight:700;opacity:.7;margin:0 0 24px}.eyebrow-dot{width:7px;height:7px;border-radius:50%;background:var(--aqua);box-shadow:0 0 0 5px rgba(141,228,208,.15)}h1,h2,h3{font-family:Manrope,sans-serif;margin:0;letter-spacing:-.06em}h1{font-size:clamp(53px,7vw,104px);line-height:.98;font-weight:700}h1 em,h2 em{font-family:Georgia,serif;font-weight:400;color:var(--aqua)}.hero-lede{max-width:470px;line-height:1.75;font-size:15px;color:rgba(255,255,255,.7);margin:28px 0}.hero-actions{display:flex;align-items:center;gap:27px;margin-top:32px}.button{display:inline-flex;align-items:center;gap:22px;border-radius:99px;padding:15px 19px 15px 24px;font-size:12px;font-weight:700;letter-spacing:.04em;transition:transform .25s,box-shadow .25s}.button span{font-size:18px;line-height:0}.button:hover{transform:translateY(-3px);box-shadow:0 14px 30px rgba(0,0,0,.15)}.button-primary{background:var(--aqua);color:var(--navy)}.button-light{background:var(--white);color:var(--navy)}.text-link{font-size:12px;font-weight:700;letter-spacing:.05em;border-bottom:1px solid rgba(255,255,255,.45);padding-bottom:7px}.text-link span{font-size:17px;margin-left:10px}.hero-proof{display:flex;gap:34px;margin-top:70px}.hero-proof div{display:flex;flex-direction:column;gap:7px;border-left:1px solid rgba(255,255,255,.23);padding-left:14px}.hero-proof strong{font-family:Manrope;font-size:17px}.hero-proof span{font-size:10px;opacity:.55}.hero-visual{min-height:600px;position:relative;display:flex;align-items:center;justify-content:center}.hero-image-wrap{position:relative;width:min(620px,52vw);height:430px;border-radius:45% 45% 42% 42%;overflow:hidden;transform:rotate(-5deg);box-shadow:0 35px 80px rgba(0,0,0,.25);border:1px solid rgba(255,255,255,.35)}.hero-image-wrap img{width:100%;height:100%;object-fit:cover;filter:saturate(.8) contrast(.96)}.orb{position:absolute;border-radius:50%;filter:blur(1px)}.orb-one{width:210px;height:210px;border:1px solid rgba(141,228,208,.55);right:0;top:35px}.orb-two{width:400px;height:400px;border:1px solid rgba(255,255,255,.16);left:0;bottom:8px}.floating-note{position:absolute;z-index:2;display:flex;align-items:center;gap:11px;padding:12px 15px;border:1px solid rgba(255,255,255,.28);background:rgba(11,52,86,.44);backdrop-filter:blur(18px);border-radius:14px;font-size:10px;line-height:1.45;box-shadow:0 15px 40px rgba(0,0,0,.12)}.floating-note b{font-size:12px}.floating-note-top{top:80px;left:2%}.floating-note-bottom{bottom:62px;right:2%}.mini-icon,.signal{color:var(--aqua);font-size:20px}.vertical-label{position:absolute;right:-10px;top:50%;writing-mode:vertical-rl;letter-spacing:.25em;font-size:9px;opacity:.42}.ticker{overflow:hidden;background:var(--aqua);color:var(--navy);padding:15px 0;font-family:Manrope;font-size:12px;font-weight:700;letter-spacing:.15em}.ticker-track{display:flex;justify-content:space-around;min-width:740px;animation:marquee 20s linear infinite}.ticker i{font-style:normal}.section-space{padding:clamp(90px,11vw,170px) clamp(24px,8vw,130px)}.story{background:var(--mist)}.story-image{height:530px;position:relative;overflow:hidden;border-radius:4px;box-shadow:var(--shadow)}.story-image:after{content:"";position:absolute;inset:0;background:linear-gradient(0deg,rgba(7,28,53,.3),transparent 45%)}.story-image img{width:100%;height:100%;object-fit:cover}.image-caption{position:absolute;bottom:24px;left:25px;color:white;font-size:10px;letter-spacing:.14em;text-transform:uppercase;z-index:1}.story-copy{max-width:520px}.story-copy h2,.section-heading h2{font-size:clamp(40px,5vw,70px);line-height:1.03}.story-copy p{line-height:1.75;color:#597083;font-size:15px;max-width:480px}.dark-link{color:var(--navy);display:inline-block;margin-top:15px;border-color:rgba(7,28,53,.32)}.quality{background:var(--white)}.section-heading{display:flex;justify-content:space-between;align-items:end;margin-bottom:55px}.section-heading .eyebrow{margin-bottom:0}.quality-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:17px}.quality-card{min-height:325px;padding:29px;background:#f2f6f4;border:1px solid var(--line);display:flex;flex-direction:column;position:relative;overflow:hidden}.quality-card.card-accent{background:var(--navy);color:var(--white);transform:translateY(-25px)}.quality-card.card-accent p{color:rgba(255,255,255,.63)}.card-index{font-size:10px;letter-spacing:.15em;opacity:.47}.card-icon{font-size:37px;color:#31ad9c;margin:47px 0 22px}.quality-card h3{font-size:24px;letter-spacing:-.04em}.quality-card p{font-size:13px;line-height:1.65;color:#657887;max-width:280px}.card-line{height:2px;width:34px;background:var(--aqua);margin-top:auto}.ecosystem{padding-top:0;background:var(--white)}.ecosystem-panel{min-height:440px;padding:clamp(35px,6vw,78px);border-radius:26px;background:linear-gradient(125deg,#071c35,#0b4a62);color:var(--white);display:grid;grid-template-columns:1.2fr .8fr;align-items:end;gap:60px;overflow:hidden;position:relative}.ecosystem-panel:before{content:"";position:absolute;width:450px;height:450px;border:1px solid rgba(141,228,208,.3);border-radius:50%;right:8%;top:-30%;box-shadow:0 0 0 45px rgba(141,228,208,.04),0 0 0 95px rgba(141,228,208,.025)}.ecosystem-panel>*{position:relative;z-index:1}.ecosystem h2{font-size:clamp(40px,5vw,69px);line-height:1.02}.eyebrow.light{color:var(--aqua);opacity:.95}.ecosystem-copy{max-width:355px}.ecosystem-copy p{line-height:1.7;font-size:14px;color:rgba(255,255,255,.72)}.ecosystem-copy strong{color:var(--white)}.small-copy{font-size:11px!important;color:rgba(255,255,255,.42)!important}.closing{text-align:center;background:radial-gradient(circle at 50% 0%,#e0f4ee,transparent 45%),var(--white)}.closing-kicker{text-transform:uppercase;font-size:10px;letter-spacing:.22em;color:#5b8589;font-weight:700}.closing h2{font-size:clamp(47px,7vw,100px);line-height:.98;margin:20px 0 38px}.closing h2 em{color:#207e78}.site-footer{display:flex;align-items:center;justify-content:space-between;padding:24px clamp(24px,8vw,130px);background:var(--navy);color:rgba(255,255,255,.7);font-size:11px}.site-footer p{margin:0;opacity:.55}.site-footer a{color:var(--aqua)}.reveal{opacity:0;transform:translateY(22px);transition:opacity .7s ease,transform .7s ease}.reveal.is-visible{opacity:1;transform:none}.reveal-delay{transition-delay:.12s}.reveal-delay-2{transition-delay:.22s}@keyframes marquee{to{transform:translateX(-20%)}}
@media(max-width:820px){.site-header{height:70px}.main-nav{display:none;position:absolute;top:70px;left:16px;right:16px;background:rgba(7,28,53,.96);padding:20px;border-radius:18px;flex-direction:column;gap:18px;margin:0}.main-nav.is-open{display:flex}.header-call{font-size:11px;padding:8px 11px}.header-call span{display:none}.menu-toggle{display:flex;flex-direction:column;gap:5px;margin-left:10px}.menu-toggle span{display:block;width:20px;height:1px;background:white}.hero{min-height:auto;padding-top:125px;padding-bottom:65px}.section-grid{grid-template-columns:1fr;gap:48px}.hero-visual{min-height:440px;order:-1}.hero-image-wrap{width:100%;height:330px}.floating-note-top{top:35px}.floating-note-bottom{bottom:28px}.vertical-label{right:-3px}.hero-proof{gap:14px;margin-top:50px}.hero-proof strong{font-size:14px}.hero-proof span{font-size:9px}.story-image{height:400px}.section-heading{display:block}.section-heading .eyebrow{margin-bottom:27px}.quality-grid{grid-template-columns:1fr}.quality-card.card-accent{transform:none}.ecosystem-panel{grid-template-columns:1fr;gap:30px}.site-footer{flex-wrap:wrap;gap:16px}.site-footer p{order:3;width:100%}}
@media(prefers-reduced-motion:reduce){*,*:before,*:after{scroll-behavior:auto!important;animation:none!important;transition:none!important}}
.hero{background:radial-gradient(circle at 78% 24%,rgba(182,163,255,.35),transparent 28%),radial-gradient(circle at 16% 96%,rgba(150,213,242,.23),transparent 30%),linear-gradient(118deg,#0b1230 0%,#173e78 54%,#513a9f 100%)}.orb-one{border-color:rgba(182,163,255,.6)}.eyebrow-dot{background:var(--violet);box-shadow:0 0 0 5px rgba(182,163,255,.15)}.mini-icon,.signal{background:transparent;color:var(--gold)}h1 em,h2 em{color:var(--aqua)}.button-primary{background:var(--gold)}.ticker{background:var(--violet);color:var(--white)}.card-icon{color:var(--gold)}.card-line{background:var(--gold)}.ecosystem-panel{background:linear-gradient(125deg,#0b1230,#253d83 55%,#513a9f)}.ecosystem-panel:before{border-color:rgba(182,163,255,.34);box-shadow:0 0 0 45px rgba(182,163,255,.05),0 0 0 95px rgba(150,213,242,.03)}.eyebrow.light{color:var(--aqua)}.closing{background:radial-gradient(circle at 50% 0%,#e6defb,transparent 45%),var(--white)}.closing h2 em{color:var(--violet-deep)}.site-footer a{color:var(--aqua)}
.subpage-hero{min-height:520px;padding:150px clamp(24px,8vw,130px) 75px;background:radial-gradient(circle at 80% 16%,rgba(182,163,255,.36),transparent 27%),linear-gradient(118deg,#0b1230,#173e78 54%,#513a9f);color:var(--white);display:flex;align-items:end}.subpage-hero h1{max-width:850px}.subpage-hero .hero-lede{max-width:650px}.subpage-content{padding:clamp(70px,9vw,130px) clamp(24px,8vw,130px)}.subpage-intro{max-width:780px;margin-bottom:70px}.subpage-intro h2{font-size:clamp(38px,5vw,68px);line-height:1.04;margin-bottom:22px}.subpage-intro p{font-size:16px;line-height:1.8;color:#5d6d83}.detail-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.detail-card{padding:30px;min-height:245px;border:1px solid var(--line);background:linear-gradient(145deg,#fff,#f3effc);box-shadow:0 18px 45px rgba(42,27,91,.07)}.detail-card:nth-child(2){background:linear-gradient(145deg,#182a5c,#513a9f);color:var(--white)}.detail-card:nth-child(2) p{color:rgba(255,255,255,.68)}.detail-card h3{font-size:25px;margin:20px 0 12px}.detail-card p{font-size:14px;line-height:1.7;color:#627187}.product-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}.product-card{background:#fff;border:1px solid var(--line);padding:14px;box-shadow:var(--shadow)}.product-card img{width:100%;height:220px;object-fit:cover}.product-card h3{font-size:21px;margin:19px 6px 7px}.product-card p{font-size:13px;line-height:1.65;color:#66758a;margin:0 6px 13px}.product-note{margin-top:45px;padding:24px 28px;border-left:3px solid var(--gold);background:var(--mist);font-size:13px;line-height:1.7;color:#5d6d83}.article-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.article-card{padding:28px;background:var(--navy);color:var(--white);min-height:260px}.article-card:nth-child(2){background:var(--violet-deep)}.article-card:nth-child(3){background:#244b83}.article-card .card-index{color:var(--water)}.article-card h3{font-size:25px;line-height:1.1;margin:38px 0 16px}.article-card p{font-size:13px;line-height:1.7;color:rgba(255,255,255,.72)}.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:22px}.contact-card{padding:34px;background:var(--mist);min-height:230px}.contact-card.accent{background:linear-gradient(135deg,#182a5c,#513a9f);color:var(--white)}.contact-card h3{font-size:28px;margin:18px 0}.contact-card p{font-size:14px;line-height:1.75;color:#627187}.contact-card.accent p{color:rgba(255,255,255,.72)}.contact-card a{color:var(--orange);font-weight:700}.page-footer-link{margin-top:46px;display:inline-flex}.orange-mark{color:var(--orange)}
@media(max-width:820px){.subpage-hero{min-height:470px;padding-top:125px}.detail-grid,.product-grid,.article-grid,.contact-grid{grid-template-columns:1fr}.product-card img{height:260px}}
.home-menu{display:grid;grid-template-columns:repeat(4,1fr);background:var(--white);border-bottom:1px solid var(--line)}.home-menu a{min-height:154px;padding:24px 25px 20px;border-right:1px solid var(--line);position:relative;transition:background .25s,transform .25s}.home-menu a:last-child{border-right:0}.home-menu a:hover{background:var(--mist);transform:translateY(-4px)}.home-menu-index{display:block;font-size:10px;letter-spacing:.15em;color:var(--violet);margin-bottom:25px}.home-menu strong{display:block;font-family:Manrope,sans-serif;font-size:20px;letter-spacing:-.04em}.home-menu small{display:block;color:#6b778a;font-size:12px;margin-top:8px}.home-menu b{position:absolute;right:22px;bottom:18px;color:var(--orange);font-size:20px;font-weight:400}.menu-toggle{align-items:center;gap:7px;font-family:inherit;font-size:10px;letter-spacing:.12em;text-transform:uppercase}.menu-toggle span{font-weight:600}.menu-toggle i{display:block;width:18px;height:1px;background:currentColor}.menu-toggle i:last-child{display:none}.menu-toggle[aria-expanded="true"] i:first-of-type{transform:rotate(45deg) translate(3px,3px)}.menu-toggle[aria-expanded="true"] i:last-child{display:block;transform:rotate(-45deg) translate(2px,-2px)}body{font-family:"Be Vietnam Pro","DM Sans","Avenir Next",sans-serif;font-size:16px;line-height:1.55}.hero-lede{font-size:16px}.story-copy p{font-size:16px}.quality-card p{font-size:15px}.ecosystem-copy p{font-size:15px}.home-menu small{font-family:"Be Vietnam Pro",sans-serif}
@media(max-width:820px){.home-menu{grid-template-columns:1fr 1fr}.home-menu a:nth-child(2){border-right:0}.home-menu a:nth-child(-n+2){border-bottom:1px solid var(--line)}.home-menu a{min-height:145px;padding:20px}.home-menu-index{margin-bottom:18px}.home-menu strong{font-size:18px}.main-nav{top:68px}.menu-toggle{display:flex}}
.menu-toggle span{width:auto;height:auto;background:transparent}
.main-nav{gap:20px;margin-right:30px;font-size:11px;letter-spacing:.06em;flex-wrap:wrap;justify-content:flex-end}
.home-menu{grid-template-columns:repeat(3,1fr)}.price-table-wrap{overflow-x:auto;box-shadow:var(--shadow)}.price-table{width:100%;border-collapse:collapse;background:var(--white);min-width:720px}.price-table th,.price-table td{padding:18px 20px;text-align:left;border-bottom:1px solid var(--line);font-size:14px}.price-table th{background:var(--navy);color:var(--white);font-family:Manrope,sans-serif;letter-spacing:.04em}.price-table td:nth-child(3){color:var(--violet-deep);font-weight:700}.faq-list{max-width:900px;margin:0 auto}.faq-list details{border-bottom:1px solid var(--line);padding:24px 0}.faq-list summary{cursor:pointer;font-family:Manrope,sans-serif;font-size:22px;font-weight:700;color:var(--ink);list-style:none;display:flex;justify-content:space-between;gap:20px}.faq-list summary:after{content:"+";color:var(--orange);font-family:Georgia,serif;font-size:28px;font-weight:400}.faq-list details[open] summary:after{content:"−"}.faq-list p{max-width:760px;color:#5d6d83;line-height:1.8;font-size:16px;margin:16px 0 0}
@media(max-width:820px){.home-menu{grid-template-columns:1fr 1fr}.home-menu a:nth-child(2n){border-right:0}.home-menu a:nth-child(n+5){border-bottom:0}}
.hero-proof strong{font-size:25px}.hero-proof span{font-size:14px;opacity:.72}.eyebrow{font-size:12px}.ticker{font-size:14px}.floating-note{font-size:12px}.floating-note b{font-size:14px}.vertical-label{font-size:11px}.image-caption{font-size:12px}.card-index{font-size:12px}.closing-kicker{font-size:12px}.site-footer{font-size:13px}.small-copy{font-size:13px!important}.hero-image-wrap{isolation:isolate}.hero-image-wrap:before,.hero-image-wrap:after{content:"";position:absolute;z-index:2;border:1px solid rgba(255,255,255,.65);border-radius:50%;opacity:0;transform:translate3d(0,18px,0) scale(.55);pointer-events:none}.hero-image-wrap:before{width:22px;height:22px;left:18%;top:32%;box-shadow:80px 90px 0 -4px rgba(255,255,255,.5),180px -28px 0 -7px rgba(182,163,255,.8),260px 105px 0 -3px rgba(150,213,242,.75)}.hero-image-wrap:after{width:9px;height:9px;right:18%;top:18%;box-shadow:-90px 180px 0 1px rgba(255,255,255,.55),-170px 55px 0 -1px rgba(216,173,98,.75)}.hero-image-wrap.is-hovered:before,.hero-image-wrap.is-hovered:after{opacity:1;animation:water-bubbles 2.8s ease-in-out infinite}.hero-image-wrap.is-hovered:after{animation-delay:.35s}@keyframes water-bubbles{0%,100%{transform:translate3d(0,18px,0) scale(.55)}50%{transform:translate3d(12px,-20px,0) scale(1)}}
@media(max-width:820px){.hero-proof strong{font-size:20px}.hero-proof span{font-size:12px}.closing h2{font-size:clamp(58px,14vw,84px)}.home-menu small{font-size:14px}.site-footer{font-size:12px}}

/* Keep long Vietnamese hero headings readable without letting them dominate the page. */
.hero h1{font-size:clamp(46px,5.4vw,82px)}
.subpage-hero h1{font-size:clamp(46px,5.8vw,86px)}

/* Vietnamese headings need open spacing; the display tracking above is too tight for diacritics. */
h1,h2,h3{font-kerning:normal;text-rendering:optimizeLegibility}
.story-copy h2,.section-heading h2,.ecosystem h2,.closing h2{letter-spacing:-.03em;line-height:1.08}
.article-card h3,.detail-card h3,.product-card h3,.quality-card h3,.contact-card h3,.home-menu strong,.faq-list summary{
  letter-spacing:-.012em;
  line-height:1.24;
  word-spacing:.02em;
}
.article-card h3,.detail-card h3,.product-card h3,.quality-card h3,.contact-card h3{overflow-wrap:normal}
@media(max-width:820px){
  .article-card h3,.detail-card h3,.product-card h3,.quality-card h3,.contact-card h3,.faq-list summary{line-height:1.3}
}

/* ===== 2026-09-24 · Mobile kiểu app + liên hệ Zalo ===== */
html{-webkit-text-size-adjust:100%;scroll-padding-top:84px}
a,button,summary{-webkit-tap-highlight-color:transparent;touch-action:manipulation}
:focus-visible{outline:2px solid var(--gold);outline-offset:3px;border-radius:6px}
.skip-link{position:fixed;left:12px;top:-60px;z-index:100;background:var(--gold);color:var(--navy);padding:10px 14px;border-radius:10px;font-weight:700}
.skip-link:focus{top:calc(10px + env(safe-area-inset-top))}
html:not(.js) .reveal{opacity:1;transform:none}
body{overscroll-behavior-y:none}

.site-header{position:fixed;height:calc(72px + env(safe-area-inset-top));padding-top:env(safe-area-inset-top);padding-left:max(clamp(24px,5vw,80px),env(safe-area-inset-left));padding-right:max(clamp(24px,5vw,80px),env(safe-area-inset-right));transition:background .25s,box-shadow .25s}
.site-header.is-scrolled,body.nav-open .site-header{background:rgba(11,18,48,.97);box-shadow:0 8px 28px rgba(0,0,0,.2)}
.brand,.header-call,.header-zalo,.nav-toggle{position:relative;z-index:2}
.brand{min-height:44px}
.brand img{width:32px;height:32px}
.header-call{min-height:44px}
.header-zalo{display:inline-flex;align-items:center;min-height:44px;margin-left:10px;padding:0 18px;border-radius:99px;background:#0068ff;color:#fff;font-weight:700;font-size:13px}
.nav-toggle{display:none;width:48px;height:48px;margin-left:8px;background:none;border:0;color:#fff;cursor:pointer;flex-direction:column;align-items:center;justify-content:center;gap:5px}
.nav-toggle i{display:block;width:22px;height:2px;border-radius:2px;background:currentColor;transition:transform .25s,opacity .2s}
.nav-toggle[aria-expanded="true"] i:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] i:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] i:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
.main-nav a[aria-current="page"]{opacity:1;color:var(--aqua)}
body.nav-open{overflow:hidden}

.button-zalo{background:#0068ff;color:#fff}
.button+.button,.button+.button-zalo{margin-left:10px}
.closing .button{margin-top:6px;margin-bottom:6px}
.page-footer-link+.page-footer-link{margin-left:10px}
.contact-actions{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px}
.contact-actions .button{margin:0}
.contact-card h3 a{color:inherit;font-weight:inherit}
.text-link{display:inline-flex;align-items:center;min-height:44px;padding-bottom:0}
.faq-list summary{min-height:48px;align-items:center}
.site-footer{gap:18px 30px;align-items:flex-start}
.site-footer p.copy{opacity:.55}
.footer-info{font-style:normal;display:flex;flex-direction:column;gap:6px;opacity:.9;line-height:1.5}
.footer-info a{display:inline-block;padding:6px 0}
.footer-info span{display:block}

.app-bar,.fab-zalo{display:none}
@media(min-width:821px){
  .fab-zalo{display:inline-flex;align-items:center;gap:10px;position:fixed;right:24px;bottom:24px;z-index:30;padding:10px 20px 10px 10px;border-radius:99px;background:#0068ff;color:#fff;box-shadow:0 12px 30px rgba(0,104,255,.35);font-size:13px;font-weight:600}
  .fab-zalo b{display:grid;place-items:center;width:38px;height:38px;border-radius:50%;background:#fff;color:#0068ff;font-size:12px}
}
@media(max-width:1080px){
  .nav-toggle{display:flex}
  .header-call span{display:none}
  .main-nav{display:none;position:fixed;inset:0;z-index:1;margin:0;padding:calc(80px + env(safe-area-inset-top)) 22px calc(96px + env(safe-area-inset-bottom));background:#0b1230;border-radius:0;flex-direction:column;flex-wrap:nowrap;justify-content:flex-start;gap:0;overflow-y:auto;overscroll-behavior:contain;font-size:17px;letter-spacing:.02em;text-transform:none;opacity:1}
  .main-nav.is-open{display:flex}
  .main-nav a{display:flex;align-items:center;min-height:54px;padding:0 4px;border-bottom:1px solid rgba(255,255,255,.1);opacity:1}
  .header-zalo{margin-left:8px}
}
@media(max-width:820px){
  .site-header{height:calc(64px + env(safe-area-inset-top));padding-left:max(16px,env(safe-area-inset-left));padding-right:max(16px,env(safe-area-inset-right))}
  .header-call{padding:0 14px;font-size:12px;margin-left:auto}
  .header-zalo,.nav-toggle{display:none}
  body{padding-bottom:calc(66px + env(safe-area-inset-bottom));background:var(--navy)}
  main{background:var(--white)}
  .hero{padding-top:calc(104px + env(safe-area-inset-top))}
  .subpage-hero{padding-top:calc(112px + env(safe-area-inset-top))}
  .site-footer{flex-direction:column;align-items:flex-start}
  .app-bar{display:grid;grid-template-columns:repeat(5,1fr);align-items:end;position:fixed;left:0;right:0;bottom:0;z-index:30;padding:6px max(6px,env(safe-area-inset-right)) env(safe-area-inset-bottom) max(6px,env(safe-area-inset-left));background:rgba(11,18,48,.96);-webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);border-top:1px solid rgba(255,255,255,.12)}
  .app-bar a,.app-bar button{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:4px;min-height:54px;padding:6px 2px;background:none;border:0;border-radius:12px;color:rgba(255,255,255,.7);font:600 11px/1.1 "Be Vietnam Pro",sans-serif;cursor:pointer}
  .app-bar svg{width:24px;height:24px;fill:none;stroke:currentColor;stroke-width:1.7}
  .app-bar a[aria-current="page"],.app-bar a:active,.app-bar button:active{color:#fff}
  .app-bar a[aria-current="page"] svg{stroke:var(--gold)}
  .app-bar .tab-zalo{color:#fff}
  .app-bar .zico{display:grid;place-items:center;width:46px;height:46px;margin-top:-22px;border-radius:50%;background:#0068ff;border:3px solid #0b1230;font-size:12px;font-weight:800;box-shadow:0 8px 20px rgba(0,104,255,.4)}
  .contact-grid{grid-template-columns:1fr}
  .price-table-wrap{-webkit-overflow-scrolling:touch}
}
.contact-card h3 a{display:inline-block;padding:8px 0}

/* ===== 2026-09-24b · Menu 5 mục + submenu, khối nội dung mới ===== */
.main-nav{gap:34px;flex-wrap:nowrap;font-size:12px;letter-spacing:.08em;margin-right:24px}
.main-nav>a{display:inline-flex;align-items:center;min-height:44px}
.nav-item{position:relative}
.nav-parent{display:inline-flex;align-items:center;gap:8px;min-height:44px;padding:0;background:none;border:0;color:inherit;font:inherit;letter-spacing:inherit;text-transform:inherit;cursor:pointer;opacity:.82;transition:opacity .2s}
.nav-parent:hover,.nav-item.is-open .nav-parent{opacity:1}
.nav-parent:after{content:"";width:6px;height:6px;border-right:1.5px solid currentColor;border-bottom:1.5px solid currentColor;transform:rotate(45deg) translateY(-2px);transition:transform .2s}
.nav-parent[aria-expanded="true"]:after{transform:rotate(225deg) translateY(-2px)}
.nav-item.has-current .nav-parent{color:var(--aqua);opacity:1}
.sub-menu{display:none;position:absolute;top:100%;left:-16px;min-width:230px;padding:8px;background:#0b1230;border:1px solid rgba(255,255,255,.12);border-radius:14px;box-shadow:0 20px 50px rgba(0,0,0,.3);z-index:5}
.nav-item.is-open .sub-menu{display:block}
@media(hover:hover) and (min-width:1081px){.nav-item:hover .sub-menu,.nav-item:focus-within .sub-menu{display:block}}
.main-nav .sub-menu a{display:block;padding:12px 14px;border-radius:10px;font-size:14px;letter-spacing:0;text-transform:none;white-space:nowrap;opacity:1;min-height:0;border:0}
.main-nav .sub-menu a:hover{background:rgba(255,255,255,.09);opacity:1}
@media(max-width:1080px){
  .main-nav{gap:0;letter-spacing:.02em;font-size:17px}
  .main-nav>a,.nav-item{display:flex;flex-direction:column;align-items:stretch;border-bottom:1px solid rgba(255,255,255,.1)}
  .main-nav>a{justify-content:center;min-height:56px;padding:0 4px}
  .nav-parent{width:100%;justify-content:space-between;min-height:56px;padding:0 4px;opacity:1;text-transform:none;font-size:17px}
  .nav-parent:after{width:8px;height:8px}
  .sub-menu,.nav-item:hover .sub-menu{position:static;display:none;min-width:0;padding:0 0 12px 14px;background:none;border:0;box-shadow:none;border-radius:0}
  .nav-item.is-open .sub-menu{display:block}
  .main-nav .sub-menu a{display:flex;align-items:center;min-height:48px;padding:0 4px;font-size:16px;color:rgba(255,255,255,.82);border:0}
  .main-nav .sub-menu a[aria-current="page"]{color:var(--aqua)}
}
.sku-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(230px,1fr));gap:16px}
.sku-card{padding:28px;background:#fff;border:1px solid var(--line);box-shadow:0 18px 45px rgba(42,27,91,.07);display:flex;flex-direction:column}
.sku-card .card-index{color:var(--violet);font-weight:700;letter-spacing:.12em}
.sku-card h3{font-size:22px;margin:16px 0 10px;line-height:1.25}
.sku-card p{font-size:15px;line-height:1.7;color:#627187;margin:0}
.article-grid a.article-card{display:block;min-height:0;padding:24px 26px;transition:transform .25s}
.article-grid a.article-card:hover{transform:translateY(-4px)}
.article-grid a.article-card h3{margin:14px 0 0;font-size:21px}
.prose{max-width:760px}
.prose h2,.post h2{font-size:clamp(26px,3.2vw,36px);line-height:1.2;letter-spacing:-.015em;margin:44px 0 14px}
.prose h2:first-child,.post:first-child h2{margin-top:0}
.prose p,.post p{font-size:17px;line-height:1.85;color:#4f5f75;margin:0 0 14px}
.post{padding-bottom:36px;margin-bottom:36px;border-bottom:1px solid var(--line);max-width:760px}
.post:last-child{border-bottom:0}
.cta-row{display:flex;flex-wrap:wrap;gap:12px;margin-top:34px}
.cta-row .button,.cta-row .button+.button{margin:0}
.product-note a,.sku-card a,.detail-card a{color:var(--violet-deep);font-weight:700;border-bottom:1px solid currentColor}
.closing-text{max-width:560px;margin:0 auto 34px;line-height:1.75;color:#5d6d83;font-size:17px}
.section-heading .button{flex-shrink:0}
.hero h1{font-size:clamp(40px,5vw,72px);letter-spacing:-.035em;line-height:1.08}
.subpage-hero h1{font-size:clamp(40px,5.2vw,74px);letter-spacing:-.035em;line-height:1.1}
.hero-lede{max-width:520px}
.quality-card{min-height:0}
@media(max-width:820px){.hero h1{font-size:clamp(36px,10.5vw,50px)}.subpage-hero h1{font-size:clamp(36px,10vw,48px)}.section-heading{display:block}.section-heading .button{margin-top:22px}.prose p,.post p{font-size:16px}}

.sku-price{margin-top:auto!important;padding-top:20px;font-family:Manrope,sans-serif;font-size:24px!important;font-weight:800;letter-spacing:-.02em;color:var(--violet-deep)!important}.sku-price small{font-size:13px;font-weight:600;color:#7a8799;letter-spacing:0}

/* ===== 2026-09-24c · Khối nội dung dày (v3) ===== */
.alt{background:var(--mist)}
.section-space.tight{padding-top:clamp(64px,7vw,104px);padding-bottom:clamp(64px,7vw,104px)}
.subpage-content{padding-top:clamp(64px,7.5vw,108px);padding-bottom:clamp(64px,7.5vw,108px)}
.subpage-intro{margin-bottom:46px}
.subpage-intro h2,.split-text h2{font-size:clamp(30px,4vw,52px);line-height:1.12;letter-spacing:-.025em}
.stat-strip{display:grid;grid-template-columns:repeat(auto-fit,minmax(170px,1fr));gap:0;margin-bottom:70px;border:1px solid var(--line);background:#fff;box-shadow:0 18px 45px rgba(42,27,91,.06)}
.stat-strip div{padding:26px 24px;border-right:1px solid var(--line);display:flex;flex-direction:column;gap:6px}
.stat-strip div:last-child{border-right:0}
.stat-strip strong{font-family:Manrope,sans-serif;font-size:clamp(24px,3vw,34px);letter-spacing:-.03em;color:var(--violet-deep);line-height:1.1}
.stat-strip span{font-size:14px;color:#66758a;line-height:1.5}
.split{display:grid;grid-template-columns:1fr 1fr;gap:clamp(34px,6vw,96px);align-items:center}
.split.flip .split-media{order:-1}
.split-text{max-width:560px}
.split-text p{font-size:16.5px;line-height:1.85;color:#55657b;margin:0 0 16px}
.split-text .eyebrow{margin-bottom:20px}
.split-text h2{margin-bottom:24px}
.split-media{height:100%;min-height:380px;position:relative}
.split-media img{width:100%;height:100%;min-height:380px;max-height:560px;object-fit:cover;border-radius:6px;box-shadow:var(--shadow)}
.checklist{list-style:none;margin:22px 0 10px;padding:0;display:grid;gap:12px}
.checklist li{position:relative;padding-left:32px;font-size:16px;line-height:1.65;color:#3f4f66}
.checklist li:before{content:"";position:absolute;left:0;top:5px;width:20px;height:20px;border-radius:50%;background:var(--violet);opacity:.9}
.checklist li:after{content:"";position:absolute;left:6px;top:10px;width:8px;height:4.5px;border-left:2px solid #fff;border-bottom:2px solid #fff;transform:rotate(-45deg)}
.spec-table td,.spec-table th{vertical-align:top;line-height:1.6}
.spec-table td:first-child{font-weight:700;color:var(--ink)}
.spec-table td:nth-child(3){color:inherit;font-weight:400}
.spec-table td:nth-child(2){background:rgba(128,100,220,.06)}
.fineprint{font-size:13px;line-height:1.7;color:#7a8799;margin:22px 0 0;max-width:720px}
.model-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:18px}
.model-card{padding:34px 30px;background:#fff;border:1px solid var(--line);box-shadow:0 18px 45px rgba(42,27,91,.07);display:flex;flex-direction:column}
.model-card.is-featured{background:linear-gradient(150deg,#0b1230,#253d83 60%,#513a9f);color:#fff;border-color:transparent}
.model-card.is-featured .checklist li{color:rgba(255,255,255,.82)}
.model-card.is-featured .sku-price{color:#fff!important}
.model-card.is-featured .sku-price small{color:rgba(255,255,255,.6)}
.model-card.is-featured .card-index{color:var(--gold)}
.model-card h3{font-size:26px;margin:14px 0 6px}
.model-card .sku-price{margin-top:6px!important;padding-top:0}
.model-card .checklist{margin:22px 0 28px}
.model-card .button{margin-top:auto;align-self:flex-start}
.prose.wide{max-width:820px}
.post-no{font-size:12px;letter-spacing:.16em;text-transform:uppercase;color:var(--violet);font-weight:700;margin:0 0 8px!important}
.faq-wrap{max-width:900px;margin:0 auto}
.faq-group{font-size:clamp(24px,3vw,32px);margin:56px 0 8px;letter-spacing:-.02em}
.faq-group:first-child{margin-top:0}
.faq-wrap .faq-list{margin:0}
.sub-h{font-size:22px;margin:30px 0 10px}
.detail-card h3,.sku-card h3{overflow-wrap:break-word}
@media(max-width:820px){
  .split{grid-template-columns:1fr;gap:30px}.split.flip .split-media{order:0}
  .split-media,.split-media img{min-height:260px;max-height:340px}
  .stat-strip{grid-template-columns:1fr 1fr;margin-bottom:46px}
  .stat-strip div:nth-child(2n){border-right:0}.stat-strip div:nth-child(-n+2){border-bottom:1px solid var(--line)}
  .stat-strip div{padding:20px 18px}
  .split-text p,.checklist li{font-size:16px}
  .model-card{padding:28px 24px}
}