/* 9h.com.vn — kiểu chung cho toàn site. Màu thương hiệu: navy #1B2B3F, hổ phách #F0A33C, xám sáng #F3F5F8. */
:root{
  --bg:#F3F5F8; --panel:#FFFFFF; --fg:#1B2B3F; --fg2:#4A5668; --muted:#8A94A6; --line:#DCE1E8;
  --navy:#1B2B3F; --amber:#F0A33C; --amber-ink:#8A5410; --amber-soft:#FFF4E2;
  --s1:#2a78d6; --s2:#eb6834; --s3:#eda100; --s4:#e87ba4; --grid:#e1e0d9;
  --display:'Nunito',sans-serif; --body:'Be Vietnam Pro',system-ui,-apple-system,Segoe UI,Roboto,sans-serif;
}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]){
  --bg:#121a26; --panel:#1B2B3F; --fg:#F3F5F8; --fg2:#C8D0DC; --muted:#8A94A6; --line:#2E3F57;
  --navy:#0E1620; --amber:#F0A33C; --amber-ink:#F7C77E; --amber-soft:#2A2A1F; --s1:#3987e5; --s2:#d95926; --s3:#c98500; --s4:#d55181; --grid:#2c2c2a; color-scheme:dark}}
:root[data-theme="dark"]{
  --bg:#121a26; --panel:#1B2B3F; --fg:#F3F5F8; --fg2:#C8D0DC; --muted:#8A94A6; --line:#2E3F57;
  --navy:#0E1620; --amber:#F0A33C; --amber-ink:#F7C77E; --amber-soft:#2A2A1F; --s1:#3987e5; --s2:#d95926; --s3:#c98500; --s4:#d55181; --grid:#2c2c2a; color-scheme:dark}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--fg);font-family:var(--body);font-size:17px;line-height:1.55}
a{color:inherit}
.site-header{background:var(--navy);color:#F3F5F8}
.site-header .in{max-width:1100px;margin:0 auto;display:flex;align-items:center;gap:18px;padding-block:14px;padding-left:max(16px,env(safe-area-inset-left,0px));padding-right:max(16px,env(safe-area-inset-right,0px));flex-wrap:wrap}
.brand{display:flex;align-items:center;gap:12px;text-decoration:none;color:#fff}
.brand .mark{font-family:var(--display);font-style:italic;font-weight:900;font-size:26px;line-height:1;background:#1B2B3F;border:2.5px solid var(--amber);border-radius:10px;width:50px;height:50px;display:grid;place-items:center}
.brand .name{font-weight:800;font-size:18px;line-height:1.1}
.brand .name small{display:block;font-weight:400;font-size:12px;color:#C8D0DC;letter-spacing:.04em}
.site-nav{margin-left:auto;display:flex;gap:4px;flex-wrap:wrap}
.site-nav a{color:#C8D0DC;text-decoration:none;font-size:14px;padding:8px 12px;border-radius:8px}
.site-nav a:hover,.site-nav a:focus-visible{background:rgba(255,255,255,.08);color:#fff;outline:none}
.site-nav a.on{color:var(--amber)}
main.page{max-width:1100px;margin:0 auto;padding-block:28px 60px;padding-left:max(16px,env(safe-area-inset-left,0px));padding-right:max(16px,env(safe-area-inset-right,0px))}
.eyebrow{display:inline-block;background:var(--amber);color:#1B2B3F;font-weight:800;font-size:12px;letter-spacing:.1em;padding:4px 10px;border-radius:6px;text-transform:uppercase}
h1{font-size:clamp(30px,4vw,48px);line-height:1.1;margin:10px 0 12px;font-weight:800;text-wrap:balance;max-width:24ch}
h2{font-size:clamp(22px,2.6vw,30px);line-height:1.2;margin:0 0 14px;font-weight:800;text-wrap:balance}
h3{font-size:18px;margin:0 0 8px;font-weight:700}
p{margin:0 0 12px;max-width:68ch;color:var(--fg2)}
p.lead{font-size:20px;color:var(--fg);max-width:60ch}
.src{font-size:13px;color:var(--muted)}
.row{display:grid;gap:18px}
.row.two{grid-template-columns:repeat(auto-fit,minmax(min(100%,320px),1fr))}
.row.three{grid-template-columns:repeat(auto-fit,minmax(min(100%,260px),1fr))}
.panel{background:var(--panel);border:1px solid var(--line);border-radius:14px;padding:20px 22px;min-width:0}
.card{display:flex;flex-direction:column;gap:10px;text-decoration:none}
.card:hover,.card:focus-visible{border-color:var(--amber);outline:none}
.card .k{font-size:12px;letter-spacing:.08em;text-transform:uppercase;color:var(--amber-ink);font-weight:700}
.card .t{font-size:20px;font-weight:800;line-height:1.25;color:var(--fg)}
.card .d{color:var(--fg2);font-size:15px}
.card .links{display:flex;gap:8px;flex-wrap:wrap;margin-top:auto}
.btn{display:inline-block;text-decoration:none;font-weight:700;font-size:14px;padding:8px 14px;border-radius:8px;border:1.5px solid var(--line);color:var(--fg)}
.btn.primary{background:var(--amber);border-color:var(--amber);color:#1B2B3F}
.btn:hover,.btn:focus-visible{border-color:var(--amber);outline:none}
.btn[aria-disabled="true"]{opacity:.55;pointer-events:none}
section.block{margin-top:40px}
.note{font-size:15px;color:var(--fg2);border-left:4px solid var(--amber);padding:6px 14px;max-width:70ch;margin:14px 0}
.tbl{overflow-x:auto}
table{border-collapse:collapse;width:100%;font-size:16px;font-variant-numeric:tabular-nums}
th,td{padding:9px 12px;text-align:right;border-bottom:1px solid var(--line);white-space:nowrap}
th{font-size:12px;letter-spacing:.06em;text-transform:uppercase;color:var(--muted);font-weight:600}
th:first-child,td:first-child{text-align:left}
td.hi{font-weight:800;color:var(--amber-ink)}
.site-footer{border-top:1px solid var(--line);margin-top:40px}
.site-footer .in{max-width:1100px;margin:0 auto;padding-block:24px;padding-left:max(16px,env(safe-area-inset-left,0px));padding-right:max(16px,env(safe-area-inset-right,0px));color:var(--muted);font-size:14px;display:grid;gap:8px}
.site-footer p{max-width:none;color:var(--muted);margin:0}
.banner{border-radius:14px;overflow:hidden;border:1px solid var(--line);aspect-ratio:21/9;max-width:100%;margin-bottom:24px}
.banner img{width:100%;height:100%;object-fit:cover;display:block}
/* form */
.field{display:grid;gap:6px}
.field label{font-weight:600;font-size:15px}
.field input[type=number],.field select{font:inherit;padding:10px 12px;border:1.5px solid var(--line);border-radius:8px;background:var(--panel);color:var(--fg);width:100%}
.field input:focus-visible,.field select:focus-visible{outline:2px solid var(--amber);outline-offset:1px}
.field .hint{font-size:13px;color:var(--muted)}
.big{font-family:var(--display);font-style:italic;font-weight:900;font-size:clamp(36px,5vw,60px);line-height:1;color:var(--fg);font-variant-numeric:tabular-nums}
.big em{font-style:italic;color:var(--amber-ink)}
.stat{display:flex;flex-direction:column;gap:4px}
.stat .l{font-size:14px;color:var(--fg2)}
.bars{display:grid;gap:10px}
.bar{display:grid;grid-template-columns:70px 1fr 64px;align-items:center;gap:10px;font-size:15px;font-variant-numeric:tabular-nums}
.bar .trk{display:block;height:14px;background:var(--line);border-radius:4px;overflow:hidden;position:relative}
.bar .fil{display:block;height:100%;background:var(--s1);border-radius:4px}
.bar .fil.bq{position:absolute;inset:0 auto 0 0;background:transparent;border-right:3px solid var(--s2);border-radius:0}
.bar .v{text-align:right;font-weight:700}
.sw{display:inline-block;width:12px;height:12px;border-radius:3px;margin-right:6px;vertical-align:-1px}
@media (max-width:640px){body{font-size:16px}.panel{padding:16px}}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}

/* Editorial readability across desktop and narrow mobile screens. */
body{line-height:1.7}
h1{line-height:1.25;max-width:30ch}
h2{line-height:1.35}
h3,.card .t{line-height:1.45}
p.lead{line-height:1.8}
.intro-detail{max-width:70ch;margin-bottom:24px}
.breadcrumb{display:flex;flex-wrap:wrap;gap:8px;align-items:center;font-size:13px;color:var(--fg2);margin-bottom:20px}
.breadcrumb a{text-underline-offset:3px}
.data-date{margin:0 0 22px;line-height:1.7}
.contact-links{display:flex;flex-wrap:wrap;gap:8px 24px;margin-top:20px}
.contact-links span{display:inline-block}
.src,.field .hint{color:var(--fg2);line-height:1.75}
.field input[type=number],.field select{min-width:0;max-width:100%}
.field select{font-size:15px}
.row>*{min-width:0}
.panel>p:last-child{margin-bottom:0}
.card .d{line-height:1.75}
.site-footer p{line-height:1.8}
@media(max-width:480px){
  .site-nav{margin-left:0;width:100%}
  .site-nav a{padding:8px;font-size:13px}
  .card .links{gap:8px}
  .bar{grid-template-columns:55px minmax(0,1fr) 48px;gap:8px;font-size:14px}
  .field select{font-size:14px;padding:10px 8px}
  .contact-links{display:grid;gap:8px}
}