/* VU CARGO – brand: đỏ #E1251B, vàng #F6BE00, trắng */
:root{--red:#E1251B;--red-d:#B81A12;--red-50:#FDF0EF;--yel:#F6BE00;--yel-50:#FFF8DC;--ink:#2B1512;--mut:#6E524D;--line:#F0DEDB;--bg:#fff;--soft:#FFFBF5;--r:14px;--sh:0 1px 2px rgba(43,21,18,.06),0 6px 24px rgba(43,21,18,.07);--msg:#0866FF;--zalo:#0068FF}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{margin:0;font-family:"Be Vietnam Pro",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;font-size:16.5px;line-height:1.6;color:var(--ink);background:var(--bg);padding-bottom:76px}
@media(min-width:900px){body{padding-bottom:0}}
img{max-width:100%;height:auto;display:block}
a{color:var(--red);text-underline-offset:3px}
a:hover{color:var(--red-d)}
h1,h2,h3{line-height:1.25;margin:0 0 .6em;font-weight:800;letter-spacing:-.01em}
h1{font-size:clamp(1.7rem,4.2vw,2.7rem)}
h2{font-size:clamp(1.3rem,2.6vw,1.75rem)}
h3{font-size:1.12rem}
p{margin:0 0 1em}
.wrap{width:min(1160px,100% - 32px);margin-inline:auto}
.center{text-align:center}
.small{font-size:.9rem;color:var(--mut)}
.skip{position:absolute;left:-999px}.skip:focus{left:12px;top:12px;z-index:99;background:#fff;padding:8px 12px}
svg{width:1.25em;height:1.25em;flex:none}

/* top + header */
.topbar{background:var(--red);color:#fff;font-size:.86rem}
.topbar .wrap{display:flex;gap:18px;justify-content:flex-end;align-items:center;min-height:36px;flex-wrap:wrap}
.topbar a{color:#fff;text-decoration:none;font-weight:600}.topbar span{margin-right:auto;opacity:.9}
@media(max-width:700px){.topbar span,.topbar a:last-child{display:none}.topbar .wrap{justify-content:center}}
header.site{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.96);backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}
.nav-wrap{display:flex;align-items:center;gap:20px;min-height:70px}
.brand img{width:130px;height:auto}
nav.main{margin-left:auto;display:flex;align-items:center;gap:16px}
nav.main>ul{list-style:none;margin:0;padding:0;display:flex;gap:4px}
nav.main a{text-decoration:none;color:var(--ink);font-weight:600;padding:8px 12px;border-radius:10px;display:block}
nav.main a:hover,nav.main a[aria-current]{color:var(--red);background:var(--red-50)}
.has-sub{position:relative}
.sub{list-style:none;margin:0;padding:8px;position:absolute;top:100%;left:0;min-width:280px;background:#fff;border:1px solid var(--line);border-radius:var(--r);box-shadow:var(--sh);display:none}
.has-sub:hover .sub,.has-sub:focus-within .sub{display:block}
.sub a{font-weight:500}
.nav-t,.burger{display:none}
@media(max-width:899px){
 .burger{display:flex;flex-direction:column;gap:5px;margin-left:auto;padding:12px;cursor:pointer}
 .burger span{width:24px;height:2.5px;background:var(--ink);border-radius:2px;transition:.2s}
 nav.main{display:none;position:absolute;left:0;right:0;top:100%;background:#fff;border-bottom:1px solid var(--line);flex-direction:column;align-items:stretch;padding:8px 16px 16px;max-height:calc(100vh - 106px);overflow:auto}
 .nav-t:checked~nav.main{display:flex}
 .nav-t:checked+.burger span:nth-child(1){transform:translateY(7.5px) rotate(45deg)}
 .nav-t:checked+.burger span:nth-child(2){opacity:0}
 .nav-t:checked+.burger span:nth-child(3){transform:translateY(-7.5px) rotate(-45deg)}
 nav.main>ul{flex-direction:column}
 .sub{position:static;display:block;border:0;box-shadow:none;padding:0 0 0 14px;min-width:0}
 nav.main a{padding:11px 10px}
 .nav-cta{text-align:center;margin-top:8px}
}

/* buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:13px 20px;border-radius:12px;font-weight:700;text-decoration:none;border:2px solid transparent;font-size:1rem;line-height:1.1;transition:transform .12s,filter .12s;cursor:pointer}
.btn:hover{transform:translateY(-1px);filter:brightness(1.05)}
.btn-sm{padding:9px 16px;font-size:.92rem}
.btn-block{width:100%}
.btn-red{background:var(--red);color:#fff}.btn-red:hover{color:#fff}
.btn-yellow{background:var(--yel);color:var(--ink)!important}
nav.main .btn-yellow:hover{background:var(--yel)}
.btn-msg{background:var(--msg);color:#fff}.btn-msg:hover{color:#fff}
.btn-zalo{background:var(--zalo);color:#fff}.btn-zalo:hover{color:#fff}
.btn-ghost{background:#fff;color:var(--ink);border-color:var(--line)}
.cta-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:6px}
@media(max-width:480px){.cta-row .btn{flex:1 1 100%}}

/* hero */
.hero{background:linear-gradient(180deg,var(--yel-50),#fff 85%);padding:48px 0 40px;border-bottom:1px solid var(--line)}
.hero-in{display:grid;grid-template-columns:1.35fr 1fr;gap:40px;align-items:center}
.eyebrow{display:inline-block;background:#fff;border:1px solid var(--line);color:var(--red);font-weight:700;font-size:.85rem;padding:5px 12px;border-radius:99px}
.hero h1 span{color:var(--red);white-space:nowrap}
.lead{font-size:1.1rem;color:var(--mut);max-width:60ch}
.trust{list-style:none;padding:0;margin:22px 0 0;display:flex;gap:10px 24px;flex-wrap:wrap;color:var(--mut);font-size:.95rem}
.trust b{color:var(--ink);font-size:1.15rem}
.hero-card hr{border:0;border-top:1px solid var(--line);margin:16px 0}
@media(max-width:860px){.hero-in{grid-template-columns:1fr;gap:24px}.hero{padding:28px 0}}

.phead{background:linear-gradient(180deg,var(--yel-50),#fff);padding:26px 0 30px;border-bottom:1px solid var(--line)}
.crumbs ol{list-style:none;padding:0;margin:0 0 14px;display:flex;flex-wrap:wrap;gap:6px;font-size:.86rem;color:var(--mut)}
.crumbs li+li::before{content:"›";margin-right:6px}
.crumbs a{color:var(--mut);text-decoration:none}

/* sections + cards */
.sec{padding:48px 0}.sec.alt{background:var(--soft);border-block:1px solid var(--line)}
@media(max-width:600px){.sec{padding:34px 0}}
.card{background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:22px;box-shadow:var(--sh)}
.card.hl{border-top:4px solid var(--yel)}
.grid{display:grid;gap:18px}
.g2{grid-template-columns:repeat(auto-fit,minmax(min(100%,340px),1fr))}
.g3{grid-template-columns:repeat(auto-fit,minmax(min(100%,280px),1fr))}
.split{display:grid;grid-template-columns:1.1fr 1fr;gap:36px;align-items:start}
@media(max-width:860px){.split{grid-template-columns:1fr;gap:24px}}
.svc{text-decoration:none;color:var(--ink);display:flex;flex-direction:column;transition:transform .15s,border-color .15s}
.svc:hover{transform:translateY(-3px);border-color:var(--red);color:var(--ink)}
.svc svg{width:38px;height:38px;color:var(--red);background:var(--red-50);padding:8px;border-radius:12px;margin-bottom:12px}
.svc p{color:var(--mut);flex:1}
.more{color:var(--red);font-weight:700}
.big{font-size:2.6rem;font-weight:800;color:var(--red);margin:0}.big small{font-size:1rem;color:var(--mut)}
.note{background:var(--yel-50);border-left:4px solid var(--yel);padding:12px 16px;border-radius:8px}

.ticks{list-style:none;padding:0;margin:0 0 1em}
.ticks li{padding-left:28px;position:relative;margin-bottom:8px}
.ticks li::before{content:"";position:absolute;left:0;top:.45em;width:16px;height:16px;border-radius:50%;background:var(--red-50) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath fill='%23E1251B' d='M9 16.2 4.8 12l-1.4 1.4L9 19 21 7l-1.4-1.4z'/%3E%3C/svg%3E") center/12px no-repeat}
.steps{list-style:none;padding:0;margin:0 0 1em;counter-reset:s}
.steps li{counter-increment:s;position:relative;padding:0 0 18px 52px;display:flex;flex-direction:column}
.steps li::before{content:counter(s);position:absolute;left:0;top:0;width:36px;height:36px;border-radius:50%;background:var(--red);color:#fff;font-weight:800;display:grid;place-items:center}
.steps li:not(:last-child)::after{content:"";position:absolute;left:17px;top:40px;bottom:4px;width:2px;background:var(--line)}
.steps span{color:var(--mut)}

.tbl{overflow-x:auto;border:1px solid var(--line);border-radius:12px;margin:0 0 1.2em;background:#fff}
table{border-collapse:collapse;width:100%;font-size:.96rem}
th,td{padding:11px 14px;text-align:left;border-bottom:1px solid var(--line);vertical-align:top}
th{background:var(--red-50);font-weight:700}
tr:last-child td{border-bottom:0}

.faq details{background:#fff;border:1px solid var(--line);border-radius:12px;margin-bottom:10px}
.faq summary{cursor:pointer;padding:16px 48px 16px 18px;font-weight:700;list-style:none;position:relative}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";position:absolute;right:18px;top:50%;transform:translateY(-50%);font-size:1.4rem;color:var(--red)}
.faq details[open] summary::after{content:"–"}
.faq details>div{padding:0 18px 16px;color:var(--mut)}
.faq-group{margin-bottom:36px;scroll-margin-top:90px}
.toc{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:28px}
.toc a{background:var(--red-50);padding:8px 14px;border-radius:99px;text-decoration:none;font-weight:600}

.calc-in{display:grid;grid-template-columns:repeat(auto-fit,minmax(110px,1fr));gap:10px;margin:10px 0}
.calc label{font-size:.85rem;font-weight:600;color:var(--mut);display:flex;flex-direction:column;gap:4px}
.calc input{font:inherit;font-size:1rem;padding:10px;border:1.5px solid var(--line);border-radius:10px;width:100%}
.calc input:focus{outline:2px solid var(--yel);border-color:var(--yel)}
.calc-out{background:var(--yel-50);padding:12px 14px;border-radius:10px;margin:0}
.price{border:1px solid var(--line);border-radius:12px;margin-bottom:12px}

.gallery{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,220px),1fr));gap:12px}
.gallery img{aspect-ratio:1;object-fit:cover;border-radius:12px;width:100%}
.partners{text-align:center;color:var(--mut);margin-top:22px;font-weight:600}
.kpis{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:12px;margin-bottom:28px}
.kpis div{background:var(--red);color:#fff;border-radius:var(--r);padding:18px;text-align:center}
.kpis b{display:block;font-size:2rem;color:var(--yel)}
.ch{text-decoration:none;color:var(--ink)}.ch svg{width:40px;height:40px;margin-bottom:8px}
.ch-msg svg{color:var(--msg)}.ch-zalo svg{color:var(--zalo)}.ch:not(.ch-msg):not(.ch-zalo) svg{color:var(--red)}
.office svg{width:30px;height:30px;color:var(--red)}
.legaltext{max-width:820px}.legaltext h2{font-size:1.2rem;margin-top:1.4em}.legaltext h3{font-size:1.02rem;margin-top:1em}
.embed iframe{width:100%;height:70vh;border:1px solid var(--line);border-radius:12px}

/* CTA band */
.band{background:var(--red);color:#fff;padding:40px 0}
.band-in{display:flex;gap:24px;align-items:center;justify-content:space-between;flex-wrap:wrap}
.band p{opacity:.92;max-width:60ch;margin:0}
.band .btn-ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.6)}

/* footer */
.site-foot{background:#2B1512;color:#F4E6E3;padding:44px 0 16px;font-size:.94rem}
.site-foot a{color:#fff;text-decoration:none}.site-foot a:hover{color:var(--yel)}
.fgrid{display:grid;grid-template-columns:1.3fr 1fr 1fr 1fr;gap:28px}
@media(max-width:860px){.fgrid{grid-template-columns:1fr 1fr}}@media(max-width:520px){.fgrid{grid-template-columns:1fr}}
.site-foot h3{color:var(--yel);font-size:1rem}
.site-foot ul{list-style:none;padding:0;margin:0}.site-foot li{margin-bottom:8px}
.flogo{background:#fff;border-radius:10px;padding:6px 10px;width:150px;margin-bottom:12px}
.legal{display:flex;justify-content:space-between;flex-wrap:wrap;gap:8px;border-top:1px solid rgba(255,255,255,.12);margin-top:28px;padding-top:14px;opacity:.8}

/* nút chat nổi: desktop = bong bóng góc phải; mobile = thanh dưới */
.fchat{position:fixed;z-index:60;right:18px;bottom:18px;display:flex;flex-direction:column;gap:10px}
.fc{width:56px;height:56px;border-radius:50%;display:grid;place-items:center;color:#fff;box-shadow:0 6px 18px rgba(0,0,0,.2);text-decoration:none;position:relative}
.fc svg{width:28px;height:28px}.fc span{display:none}
.fc-msg{background:var(--msg)}.fc-zalo{background:var(--zalo)}.fc-tel{background:var(--red)}
.fc-msg::after{content:"";position:absolute;inset:0;border-radius:50%;box-shadow:0 0 0 0 rgba(8,102,255,.5);animation:pulse 2.4s infinite}
@keyframes pulse{70%{box-shadow:0 0 0 14px rgba(8,102,255,0)}100%{box-shadow:0 0 0 0 rgba(8,102,255,0)}}
@media(prefers-reduced-motion:reduce){.fc-msg::after{animation:none}*{scroll-behavior:auto}}
.fc:hover{color:#fff;transform:scale(1.06)}
@media(max-width:899px){
 .fchat{left:0;right:0;bottom:0;flex-direction:row;gap:0;background:#fff;border-top:1px solid var(--line);padding:8px 8px calc(8px + env(safe-area-inset-bottom));box-shadow:0 -4px 16px rgba(0,0,0,.06)}
 .fc{flex:1;width:auto;height:52px;border-radius:12px;margin:0 4px;display:flex;gap:8px;align-items:center;justify-content:center;box-shadow:none;font-weight:700}
 .fc span{display:inline}.fc svg{width:22px;height:22px}.fc-msg::after{display:none}
}
@media print{.fchat,header.site,.topbar,.band{display:none}}
.lang{border:1.5px solid var(--line);border-radius:10px;padding:7px 11px!important;font-weight:800!important}