:root{
  --ink:#12161c; --ink-soft:#4a5462; --line:#e3e7ec; --bg:#ffffff; --bg-soft:#f6f8fa;
  --brand:#0b57a4; --brand-dark:#083f77; --amber:#f5a300; --amber-soft:#fff6e2;
  --radius:14px; --shadow:0 8px 30px rgba(12,22,40,.08);
  --max:1140px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:"Noto Sans Thai","Sarabun",-apple-system,"Segoe UI",sans-serif;color:var(--ink);background:var(--bg);line-height:1.85;font-size:17px;-webkit-font-smoothing:antialiased}
img{max-width:100%;display:block;border-radius:var(--radius)}
a{color:var(--brand);text-decoration:none}
a:hover{text-decoration:underline}
.wrap{max-width:var(--max);margin:0 auto;padding:0 20px}

header.site{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.94);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.nav{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:14px 0}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;color:var(--ink);font-size:18px;letter-spacing:.2px}
.brand .dot{width:32px;height:32px;border-radius:9px;background:linear-gradient(135deg,var(--brand),var(--amber));flex:0 0 auto}
.brand small{display:block;font-weight:500;font-size:11px;color:var(--ink-soft);line-height:1.2}
nav.menu{display:flex;gap:6px;flex-wrap:wrap}
nav.menu a{padding:8px 14px;border-radius:999px;color:var(--ink-soft);font-weight:600;font-size:15px}
nav.menu a:hover{background:var(--bg-soft);text-decoration:none;color:var(--brand)}
nav.menu a.active{background:var(--brand);color:#fff}

.hero{position:relative;color:#fff;min-height:520px;display:flex;align-items:center;background:#081726}
.hero img.bg{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.42;border-radius:0}
.hero .inner{position:relative;padding:80px 0}
.hero h1{font-size:clamp(30px,4.6vw,50px);line-height:1.3;font-weight:800;margin-bottom:18px;text-shadow:0 2px 20px rgba(0,0,0,.4)}
.hero p.lead{font-size:19px;max-width:760px;color:#e6edf5}
.badges{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px}
.badges span{background:rgba(255,255,255,.13);border:1px solid rgba(255,255,255,.28);padding:7px 14px;border-radius:999px;font-size:14px}
.cta{display:flex;gap:12px;flex-wrap:wrap;margin-top:28px}
.btn{display:inline-block;padding:13px 26px;border-radius:999px;font-weight:700;font-size:16px}
.btn-primary{background:var(--amber);color:#22180a}
.btn-ghost{border:1.5px solid rgba(255,255,255,.6);color:#fff}
.btn:hover{text-decoration:none;opacity:.92}

section.block{padding:64px 0}
section.block.alt{background:var(--bg-soft)}
h2{font-size:clamp(24px,3vw,34px);line-height:1.4;font-weight:800;margin-bottom:8px}
h3{font-size:21px;font-weight:700;margin:26px 0 8px}
h4{font-size:18px;font-weight:700;margin:18px 0 6px}
.kicker{color:var(--brand);font-weight:700;letter-spacing:1px;font-size:14px;text-transform:uppercase;margin-bottom:6px}
p{margin-bottom:16px;color:#232c36}
ul,ol{margin:0 0 18px 22px;color:#232c36}
li{margin-bottom:8px}
.rule{height:4px;width:64px;background:var(--amber);border-radius:4px;margin:14px 0 26px}

.grid{display:grid;gap:24px}
.g2{grid-template-columns:repeat(2,1fr)}
.g3{grid-template-columns:repeat(3,1fr)}
.g4{grid-template-columns:repeat(4,1fr)}
@media(max-width:900px){.g2,.g3,.g4{grid-template-columns:1fr}}
.card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:24px;box-shadow:var(--shadow)}
.card h3{margin-top:0}
.card img{margin-bottom:14px}
.fig{margin:26px 0}
.fig figcaption{font-size:14px;color:var(--ink-soft);margin-top:8px;text-align:center}
.split{display:grid;grid-template-columns:1fr 1fr;gap:34px;align-items:center}
@media(max-width:900px){.split{grid-template-columns:1fr}}
.stat{background:var(--amber-soft);border:1px solid #f2dfb4;border-radius:var(--radius);padding:20px;text-align:center}
.stat b{display:block;font-size:30px;color:var(--brand-dark)}
table{width:100%;border-collapse:collapse;margin:18px 0;font-size:16px}
th,td{border:1px solid var(--line);padding:11px 14px;text-align:left;vertical-align:top}
th{background:var(--bg-soft);font-weight:700}
.callout{border-left:5px solid var(--brand);background:var(--bg-soft);padding:18px 22px;border-radius:0 var(--radius) var(--radius) 0;margin:22px 0}
.toc{background:var(--bg-soft);border:1px solid var(--line);border-radius:var(--radius);padding:22px 26px}
.toc ol{columns:2;margin-bottom:0}
@media(max-width:700px){.toc ol{columns:1}}
form label{display:block;font-weight:600;margin-bottom:6px}
form input,form textarea,form select{width:100%;padding:12px 14px;border:1px solid var(--line);border-radius:10px;font:inherit;margin-bottom:16px;background:#fff}
footer.site{background:#0d1723;color:#c6d2e0;padding:56px 0 26px;margin-top:20px}
footer.site a{color:#eaf1f8}
footer.site h4{color:#fff;margin:0 0 12px}
footer .fgrid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:30px}
@media(max-width:900px){footer .fgrid{grid-template-columns:1fr}}
.copy{border-top:1px solid rgba(255,255,255,.12);margin-top:34px;padding-top:18px;font-size:14px;color:#8fa2b6}