/* Kiểu dáng chung cho các trang nội dung: chính sách, cẩm nang, trang lỗi. Cùng hệ màu với trang chủ. */
:root{
  --paper:#F5F4F1; --paper-2:#EDEAE4; --ink:#1A1C1E; --ink-2:#4B4F54; --line:#CFCBC3;
  --brass:#A07A3F; --brass-2:#C9A86A; --walnut:#4E3626; --night:#151617; --night-ink:#E9E6E0; --night-2:#A9A59D;
  --f-display:"Lora",Georgia,"Times New Roman",serif;
  --f-body:"Be Vietnam Pro",system-ui,-apple-system,"Segoe UI",sans-serif;
  --f-mono:"Be Vietnam Pro",system-ui,-apple-system,"Segoe UI",sans-serif;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:90px}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
body{margin:0;background:var(--paper);color:var(--ink);font-family:var(--f-body);font-size:17px;line-height:1.75}
[hidden]{display:none!important}
a{color:inherit} img{display:block;max-width:100%}
:focus-visible{outline:2px solid var(--brass);outline-offset:3px}
.skip{position:absolute;left:-999px;top:8px;z-index:100;background:var(--ink);color:var(--paper);padding:10px 16px}
.skip:focus{left:8px}
.wrap{max-width:1240px;margin:0 auto;padding-inline:24px}
@media (max-width:560px){.wrap{padding-inline:16px}}
h1,h2,h3{font-family:var(--f-display);font-weight:500;text-wrap:balance;margin:0;letter-spacing:-.01em}
.eyebrow{font-size:13px;font-weight:600;letter-spacing:.1em;text-transform:uppercase;color:var(--brass)}
.btn{white-space:nowrap;display:inline-flex;align-items:center;gap:8px;padding:12px 22px;font:500 14px var(--f-body);text-decoration:none;border:1px solid var(--ink);background:var(--ink);color:var(--paper);cursor:pointer;transition:background .2s,color .2s}
.btn:hover{background:var(--walnut);border-color:var(--walnut)}
.btn.brass{background:var(--brass);border-color:var(--brass);color:#fff}
.btn.ghost{background:transparent;color:var(--ink)} .btn.ghost:hover{background:var(--ink);color:var(--paper)}
.btn.sm{padding:8px 14px;font-size:13px}

header.bar{position:sticky;top:env(safe-area-inset-top,0px);z-index:30;background:var(--paper);border-bottom:1px solid var(--line)}
.bar .wrap{display:flex;align-items:center;justify-content:space-between;gap:20px;padding-block:14px}
.logo{display:flex;align-items:baseline;gap:10px;text-decoration:none;min-width:0}
.logo .lg{flex:none;align-self:center;width:36px;height:36px;border-radius:8px;background:url(images/logo-gia-hung.jpg) center/cover}
.logo b{font-family:var(--f-display);font-weight:600;font-size:22px;letter-spacing:.18em}
.logo span{font-size:11px;letter-spacing:.16em;text-transform:uppercase;color:var(--ink-2);white-space:nowrap}
nav.links{display:flex;gap:26px;font-size:14px}
nav.links a{text-decoration:none;color:var(--ink-2);white-space:nowrap} nav.links a:hover,nav.links a[aria-current]{color:var(--ink)}
nav.links a[aria-current]{border-bottom:1px solid var(--brass)}
.bar .right{display:flex;align-items:center;gap:14px}
.bar .tel{font-size:13px;text-decoration:none;color:var(--ink-2);white-space:nowrap}
@media (max-width:960px){nav.links,.bar .tel{display:none}}
@media (max-width:1180px){header.bar .logo span{display:none}}
@media (max-width:1120px){nav.links{gap:18px}.bar .tel{display:none}}

.page-head{padding-block:56px 28px}
.page-head h1{font-size:clamp(36px,5vw,62px);line-height:1.06;margin-top:10px}
.page-head p{max-width:40em;margin:14px 0 0;color:var(--ink-2)}
.crumbs{font-size:12.5px;color:var(--ink-2);margin-bottom:16px}
.crumbs a{text-decoration:none;border-bottom:1px solid var(--line)}

.doc{display:grid;grid-template-columns:240px minmax(0,1fr);gap:56px;padding-block:12px 72px;align-items:start}
@media (max-width:860px){.doc{grid-template-columns:minmax(0,1fr);gap:20px}}
.toc{position:sticky;top:96px;display:grid;gap:2px;font-size:14px;border-left:1px solid var(--line)}
.toc a{text-decoration:none;color:var(--ink-2);padding:6px 0 6px 14px} .toc a:hover{color:var(--brass)}
@media (max-width:860px){.toc{position:static;border:1px solid var(--line);background:#fff;padding:10px 6px}}
.doc article{max-width:46em;min-width:0}
.doc section{padding-block:6px 30px;border-bottom:1px solid var(--line);margin-bottom:30px}
.doc section:last-child{border-bottom:0}
.doc h2{font-size:clamp(25px,3vw,34px);line-height:1.2;margin-bottom:12px}
.doc h3{font-size:20px;line-height:1.3;margin:22px 0 6px}
.doc p{margin:0 0 12px}
.doc ul,.doc ol{margin:0 0 12px;padding-left:22px}
.doc li{margin-bottom:5px}
.doc table{width:100%;border-collapse:collapse;margin:8px 0 14px;font-size:15px;background:#fff}
.doc th,.doc td{border:1px solid var(--line);padding:9px 12px;text-align:left;vertical-align:top}
.doc th{background:var(--paper-2);font-weight:600}
.table-box{overflow-x:auto}
.note{font-size:14.5px;color:var(--ink-2);border-left:2px solid var(--brass);padding-left:12px;margin:12px 0}
.sum{background:#fff;border:1px solid var(--line);padding:16px 18px;margin-bottom:16px}
.upd{font-size:13px;color:var(--ink-2)}

.cta{background:var(--walnut);color:#F3EDE4}
.cta .wrap{padding-block:60px;display:grid;grid-template-columns:minmax(0,1.3fr) minmax(0,1fr);gap:32px;align-items:center}
.cta h2{font-size:clamp(28px,4vw,44px);line-height:1.1}
.cta p{margin:0 0 16px;color:rgba(243,237,228,.8)}
.cta .acts{display:flex;gap:10px;flex-wrap:wrap}
@media (max-width:800px){.cta .wrap{grid-template-columns:minmax(0,1fr)}}

.float-zalo{position:fixed;right:18px;bottom:calc(18px + env(safe-area-inset-bottom,0px));z-index:40;background:var(--brass);color:#fff;text-decoration:none;font:600 14px var(--f-body);padding:12px 18px;box-shadow:0 6px 20px rgba(0,0,0,.18)}

footer{background:var(--night);color:var(--night-ink);padding-block:44px 30px;font-size:14px}
footer .wrap{display:flex;justify-content:space-between;gap:24px;flex-wrap:wrap}
footer a{color:#D6D2CA;text-decoration:none}
footer a:hover{color:var(--brass-2)}
footer p{margin:6px 0 0;color:var(--night-2)}
.f-links{display:flex;flex-wrap:wrap;gap:6px 18px}
.nhead{padding-block:30px 20px}
.nluoi{display:grid;grid-template-columns:repeat(auto-fill,minmax(230px,1fr));gap:18px;padding-bottom:40px}
.ntile{display:block;background:#fff;border:1px solid var(--line);text-decoration:none;color:inherit;padding-bottom:12px;font-size:14px}
.ntile img{width:100%;aspect-ratio:4/3;object-fit:cover;object-position:center bottom;margin-bottom:10px;background:var(--paper-2)}
.ntile b,.ntile span,.ntile em{display:block;padding-inline:12px}
.ntile b{font-family:var(--f-display);font-weight:500;font-size:18px;line-height:1.25}
.ntile span{font-size:12.5px;color:var(--ink-2);margin-top:2px}
.ntile em{font-style:normal;font-weight:600;color:var(--walnut);margin-top:6px}
@media (hover:hover){.ntile:hover{border-color:var(--brass)}}
@media (max-width:560px){.nluoi{grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}.ntile b{font-size:15.5px}}
.nkhac{border-top:1px solid var(--line);padding-block:24px 40px}
.nkhac h2{font-size:22px;margin-bottom:10px}
.nkhac div{display:flex;flex-wrap:wrap;gap:6px 18px;font-size:14.5px}
.nkhac a{color:var(--ink-2)}
.doc figure{margin:0 0 16px}
.doc figure img{width:100%;aspect-ratio:16/8;object-fit:cover}