:root{--bg:#f7f8fb;--card:#fff;--text:#1f2937;--muted:#6b7280;--line:#e5e7eb;--brand:#111827}*{box-sizing:border-box}body{margin:0;font-family:Arial,"Noto Sans Thai",sans-serif;background:var(--bg);color:var(--text);line-height:1.75}.container{max-width:920px;margin:0 auto;padding:32px 18px 56px}.card{background:var(--card);border:1px solid var(--line);border-radius:16px;padding:28px;box-shadow:0 8px 28px rgba(17,24,39,.06)}h1{font-size:30px;line-height:1.25;margin:0 0 8px;color:var(--brand)}h2{font-size:20px;margin:28px 0 8px;color:var(--brand)}p,li{font-size:16px}small,.muted{color:var(--muted)}nav{display:flex;gap:12px;flex-wrap:wrap;margin:18px 0 28px}nav a{color:#0f4ab8;text-decoration:none;border:1px solid var(--line);border-radius:999px;padding:7px 12px;background:#fff}a{color:#0f4ab8}.footer{margin-top:26px;padding-top:18px;border-top:1px solid var(--line);color:var(--muted);font-size:14px}.lang{margin-top:26px;padding-top:20px;border-top:1px dashed var(--line)}.notice{background:#f3f4f6;border:1px solid var(--line);border-radius:12px;padding:14px 16px;margin:16px 0}