:root{--bg:#f6f7f9;--card:#ffffff;--ink:#1b2430;--muted:#5b6675;--line:#dfe3e8;--accent:#1f4e79;--accent2:#e8f0f8;
--ok:#1e7b4a;--okbg:#e7f5ee;--warn:#9a5b00;--warnbg:#fff4e0;--bad:#a52a2a;--badbg:#fdecec;--chip:#eef1f5}
@media (prefers-color-scheme: dark){:root:not([data-theme="light"]){--bg:#11161d;--card:#18202a;--ink:#e6eaf0;--muted:#9aa6b4;--line:#2a3542;--accent:#7fb3e6;--accent2:#1c2a3a;--ok:#5fd39a;--okbg:#14301f;--warn:#f0b354;--warnbg:#33270f;--bad:#ff8a8a;--badbg:#3a1717;--chip:#222c38}}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--ink);font-family:"Sarabun","IBM Plex Sans Thai","Noto Sans Thai","Leelawadee UI",Tahoma,system-ui,sans-serif;font-size:16px;line-height:1.6}
a{color:var(--accent)}
header.top{background:var(--accent);color:#fff;padding:18px 24px}
@media (prefers-color-scheme: dark){:root:not([data-theme="light"]) header.top{background:#16324d}}
header.top .crumb{font-size:13px;opacity:.85}
header.top .crumb a{color:#fff}
header.top h1{margin:4px 0 2px;font-size:26px;line-height:1.3}
header.top .sub{font-size:14px;opacity:.9}
.wrap{display:grid;grid-template-columns:260px minmax(0,1fr);gap:24px;max-width:1280px;margin:0 auto;padding:20px 16px 60px}
nav.toc{position:sticky;top:12px;align-self:start;max-height:calc(100vh - 24px);overflow:auto;background:var(--card);border:1px solid var(--line);border-radius:10px;padding:12px 12px 12px 14px;font-size:14px}
nav.toc b{display:block;margin:6px 0 4px;color:var(--muted);font-size:12px;letter-spacing:.04em;text-transform:uppercase}
nav.toc a{display:block;text-decoration:none;color:var(--ink);padding:3px 4px;border-radius:5px}
nav.toc a:hover{background:var(--accent2)}
nav.toc .n{color:var(--muted);display:inline-block;min-width:34px}
main{min-width:0}
section.block{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:18px 20px;margin-bottom:18px}
section.block h2{margin:0 0 10px;font-size:20px;color:var(--accent)}
h3.grp{margin:28px 0 10px;font-size:19px;border-left:5px solid var(--accent);padding-left:10px}
.grid2{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.kv{display:grid;grid-template-columns:150px 1fr;gap:4px 12px;font-size:15px}
.kv div:nth-child(odd){color:var(--muted)}
table.t{border-collapse:collapse;width:100%;font-size:14.5px}
table.t th,table.t td{border:1px solid var(--line);padding:6px 8px;text-align:left;vertical-align:top}
table.t th{background:var(--accent2)}
.chip{display:inline-block;background:var(--chip);border-radius:999px;padding:1px 10px;font-size:12.5px;margin:2px 4px 2px 0;white-space:nowrap}
.chip.h{background:var(--okbg);color:var(--ok)} .chip.y{background:var(--warnbg);color:var(--warn)}
.item{background:var(--card);border:1px solid var(--line);border-radius:12px;margin-bottom:16px;overflow:hidden}
.item .ih{display:flex;gap:12px;align-items:flex-start;padding:12px 16px;background:var(--accent2);border-bottom:1px solid var(--line)}
.item .no{font-weight:700;color:var(--accent);min-width:46px;font-size:17px}
.item .ttl{font-weight:700;font-size:17px}
.item .meta{font-size:13.5px;color:var(--muted);margin-top:2px}
.item .ib{padding:12px 16px 14px}
.cols{display:grid;grid-template-columns:minmax(0,1.35fr) minmax(0,1fr);gap:18px}
.lbl{font-size:12.5px;font-weight:700;letter-spacing:.04em;text-transform:uppercase;color:var(--muted);margin:10px 0 4px}
.lbl:first-child{margin-top:0}
ol.steps{margin:0;padding-left:0;list-style:none;counter-reset:s}
ol.steps li{counter-increment:s;position:relative;padding:5px 6px 5px 40px;border-radius:6px}
ol.steps li:before{content:counter(s);position:absolute;left:6px;top:6px;width:24px;height:24px;border-radius:50%;background:var(--accent);color:#fff;font-size:13px;display:flex;align-items:center;justify-content:center}
ol.steps li.done{opacity:.55;text-decoration:line-through}
ol.steps li:hover{background:var(--accent2);cursor:pointer}
.crit{background:var(--okbg);border-left:4px solid var(--ok);padding:8px 10px;border-radius:6px;font-size:15px}
.rec{background:var(--chip);padding:8px 10px;border-radius:6px;font-size:14.5px}
.warn{background:var(--warnbg);border-left:4px solid var(--warn);padding:8px 10px;border-radius:6px;font-size:14.5px;margin-top:8px}
.r1{background:var(--badbg);border-left:4px solid var(--bad);padding:8px 10px;border-radius:6px;font-size:14.5px;margin-top:8px}
.ref{font-size:13.5px;color:var(--muted);margin-top:8px}
figure{margin:0 0 10px;background:var(--card);border:1px solid var(--line);border-radius:8px;padding:6px}
figure img{width:100%;height:auto;display:block;border-radius:4px;background:#fff;cursor:zoom-in}
figcaption{font-size:12.5px;color:var(--muted);padding:4px 2px 0}
.lightbox{position:fixed;inset:0;background:rgba(0,0,0,.85);display:none;align-items:center;justify-content:center;z-index:50;padding:20px}
.lightbox img{max-width:100%;max-height:100%;background:#fff}
.lightbox.on{display:flex}
.cards{display:grid;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:14px}
.card{display:block;text-decoration:none;color:var(--ink);background:var(--card);border:1px solid var(--line);border-radius:12px;padding:14px 16px}
.card:hover{border-color:var(--accent)}
.card .big{font-size:18px;font-weight:700;color:var(--accent)}
.card .s{font-size:14px;color:var(--muted)}
.ok{color:var(--ok);font-weight:700}.no{color:var(--bad)}
.progress{font-size:13px;color:var(--muted);margin-top:8px}
.tbtn{float:right;font-size:12px;border:1px solid rgba(255,255,255,.6);background:transparent;color:#fff;border-radius:6px;padding:3px 8px;cursor:pointer}
@media (max-width:900px){.wrap{grid-template-columns:1fr}nav.toc{position:static;max-height:none}.cols,.grid2{grid-template-columns:1fr}.kv{grid-template-columns:1fr}}
@media print{nav.toc,.tbtn{display:none}.wrap{display:block;padding:0}body{background:#fff;font-size:12pt}.item,section.block{break-inside:avoid-page;border-color:#bbb}header.top{background:#fff;color:#000;border-bottom:2px solid #000}header.top .crumb a{color:#000}ol.steps li.done{opacity:1;text-decoration:none}}