:root{--bg:#F7F5F0;--surface:#FFFFFF;--ink:#122239;--muted:#5A6577;--line:#E3DFD5;--navy:#122E52;--gold:#B8893B;--tint:#F1ECE0}
@media (prefers-color-scheme:dark){:root{--bg:#0C1626;--surface:#12213A;--ink:#E9EEF6;--muted:#A5B0C2;--line:#22324D;--gold:#D9AE5F;--tint:#18294A}}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--ink);font:18px/1.85 "IBM Plex Sans Thai",system-ui,sans-serif}
h1,h2,h3{font-family:"Noto Serif Thai",Georgia,serif;line-height:1.35;margin:0}
a{color:var(--gold)}
.wrap{max-width:780px;margin:0 auto;padding:0 20px}
header.top{display:flex;justify-content:space-between;align-items:center;gap:12px;padding:18px 0;font-size:.95rem}
header.top a{text-decoration:none;color:var(--ink);font-weight:600}
nav.crumb{font-size:.88rem;color:var(--muted);margin:4px 0 14px}
nav.crumb a{color:var(--muted)}
h1{font-size:clamp(1.65rem,4.2vw,2.35rem);margin-bottom:14px}
.byline{display:flex;align-items:center;gap:12px;color:var(--muted);font-size:.93rem;margin-bottom:26px}
.byline img{width:46px;height:46px;border-radius:50%;object-fit:cover;border:2px solid var(--gold)}
.byline b{color:var(--ink)}
.lead{font-size:1.08rem}
article h2{font-size:1.4rem;margin:38px 0 12px}
article h3{font-size:1.12rem;margin:24px 0 8px}
article p,article ul,article ol{margin:0 0 16px}
article li{margin-bottom:6px}
.box{background:var(--tint);border-left:4px solid var(--gold);border-radius:10px;padding:16px 18px;margin:20px 0}
.box p:last-child,.box ul:last-child{margin-bottom:0}
.note{color:var(--muted);font-size:.9rem}
table{width:100%;border-collapse:collapse;margin:8px 0 20px;font-size:.95rem}
th,td{border:1px solid var(--line);padding:9px 10px;text-align:left;vertical-align:top}
th{background:var(--tint)}
.toc{background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:14px 20px;margin:0 0 10px}
.toc b{display:block;margin-bottom:6px}
.toc ol{margin:0;padding-left:20px}
.author{display:grid;grid-template-columns:84px 1fr;gap:16px;align-items:center;background:var(--surface);border:1px solid var(--line);border-radius:16px;padding:18px;margin:40px 0 20px}
.author img{width:84px;height:84px;border-radius:50%;object-fit:cover;border:3px solid var(--gold)}
.author p{margin:4px 0 0;font-size:.95rem;color:var(--muted)}
.cta{display:flex;flex-wrap:wrap;gap:10px;margin:8px 0 28px}
.cta a{padding:11px 18px;border-radius:12px;background:var(--navy);color:#fff;text-decoration:none;font-weight:600}
.cta a.ghost{background:transparent;color:var(--ink);border:1px solid var(--line)}
.related{border-top:1px solid var(--line);padding-top:18px;margin-top:10px}
.related ul{padding-left:20px}
.cards{display:grid;gap:16px;margin:10px 0 30px}
.card{display:block;background:var(--surface);border:1px solid var(--line);border-radius:16px;padding:20px;text-decoration:none;color:var(--ink)}
.card h2{font-size:1.2rem;margin-bottom:6px}
.card p{margin:0;color:var(--muted);font-size:.96rem}
footer{color:var(--muted);font-size:.86rem;text-align:center;padding:20px 0 40px}