:root{
  --bg:#FFFFFF; --ink:#111827; --mute:#6B7280; --line:#E5E7EB;
  --pumpkin:#F08A2C; --pumpkin-deep:#D86E12; --pumpkin-soft:#FFF1DE;
  --radius:14px; --radius-lg:18px; --radius-pill:999px;
  --font-body:"Sarabun",-apple-system,"Segoe UI",system-ui,sans-serif;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--ink);font-family:var(--font-body);
  font-size:16px;line-height:1.75;-webkit-font-smoothing:antialiased}
.container{width:100%;max-width:860px;margin:0 auto;padding:0 20px}

/* หัวเว็บ */
.lg-nav{position:sticky;top:0;z-index:20;background:rgba(255,255,255,.92);
  backdrop-filter:saturate(180%) blur(12px);border-bottom:1px solid var(--line)}
.lg-nav-in{display:flex;align-items:center;gap:14px;height:64px}
.lg-logo{display:flex;align-items:center;gap:9px;text-decoration:none;color:var(--ink);font-weight:800;font-size:17px}
.lg-logo img{width:30px;height:30px;object-fit:contain;display:block}
.lg-nav-spacer{flex:1}
.lg-back{color:var(--mute);text-decoration:none;font-size:14px;font-weight:600;white-space:nowrap}
.lg-back:hover{color:var(--pumpkin-deep)}

/* หัวเอกสาร */
.lg-head{padding:44px 0 26px;border-bottom:1px solid var(--line)}
.lg-eyebrow{display:inline-block;background:var(--pumpkin-soft);color:var(--pumpkin-deep);
  font-size:12.5px;font-weight:700;padding:5px 13px;border-radius:var(--radius-pill);margin-bottom:14px}
h1.lg-title{font-size:clamp(25px,4.6vw,35px);line-height:1.3;margin:0 0 10px;font-weight:800;letter-spacing:-.01em}
.lg-updated{color:var(--mute);font-size:14px;margin:0}

/* เนื้อหาเอกสาร */
.lg-body{padding:30px 0 60px;font-size:16.5px}
.lg-body h1,.lg-body h2{font-size:20px;font-weight:800;margin:34px 0 10px;line-height:1.45;letter-spacing:-.005em}
.lg-body h3{font-size:17.5px;font-weight:700;margin:26px 0 8px;line-height:1.5}
.lg-body h4,.lg-body h5{font-size:16px;font-weight:700;margin:20px 0 6px}
.lg-body p{margin:0 0 15px}
.lg-body ul,.lg-body ol{margin:0 0 16px;padding-left:24px}
.lg-body li{margin:0 0 9px}
.lg-body a{color:var(--pumpkin-deep);text-decoration:underline;text-underline-offset:2px;word-break:break-word}
.lg-body strong,.lg-body b{font-weight:700}
.lg-body table{width:100%;border-collapse:collapse;margin:0 0 18px;font-size:15px;display:block;overflow-x:auto}
.lg-body td,.lg-body th{border:1px solid var(--line);padding:9px 11px;text-align:left;vertical-align:top}
.lg-body th{background:#FAFAFA;font-weight:700}
.lg-body hr{border:0;border-top:1px solid var(--line);margin:26px 0}

/* เอกสารอื่น */
.lg-more{border-top:1px solid var(--line);padding:30px 0 8px}
.lg-more h2{font-size:15px;font-weight:800;margin:0 0 14px;color:var(--mute);
  text-transform:uppercase;letter-spacing:.06em}
.lg-more-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:10px}
.lg-card{display:block;border:1px solid var(--line);border-radius:var(--radius);padding:13px 15px;
  text-decoration:none;color:var(--ink);transition:border-color .15s,box-shadow .15s,transform .15s}
.lg-card:hover{border-color:var(--pumpkin);box-shadow:0 4px 14px rgba(17,24,39,.07);transform:translateY(-1px)}
.lg-card b{display:block;font-size:14.5px;font-weight:700;line-height:1.45}
.lg-card span{display:block;color:var(--mute);font-size:12.5px;margin-top:3px}

/* ท้ายเว็บ */
.lg-foot{background:#0F0F10;color:rgba(255,255,255,.72);padding:30px 0;margin-top:50px;font-size:13.5px}
.lg-foot-in{display:flex;flex-wrap:wrap;gap:12px;align-items:center;justify-content:space-between}
.lg-foot a{color:rgba(255,255,255,.9);text-decoration:none;margin-left:16px}
.lg-foot a:first-child{margin-left:0}
.lg-foot a:hover{text-decoration:underline}
@media(max-width:560px){
  .lg-foot-in{flex-direction:column;align-items:flex-start;gap:8px}
  .lg-foot a{margin-left:0;margin-right:16px}
  .lg-body{font-size:16px}
}