:root{--sthink:#1f1d1a;--sthpp:#fbf8f2;--sthmu:#6b645a;--sthln:#e4ddd0;--sthac:#b4441c;--stha2:#7a2e12;--sthcd:#ffffff}
*{box-sizing:border-box}html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--sthpp);color:var(--sthink);font:17px/1.75 "Be Vietnam Pro",system-ui,sans-serif}
a{color:var(--stha2)}a:hover{color:var(--sthac)}
.sth-hd{background:#fff;border-bottom:3px solid var(--sthac)}
.sth-hi{max-width:1080px;margin:0 auto;padding:14px 16px;display:flex;flex-wrap:wrap;gap:8px 18px;align-items:center;justify-content:space-between}
.sth-lg{display:flex;align-items:center;gap:9px;font-weight:800;font-size:1.15rem;text-decoration:none;color:#1f1d1a}
.sth-lg img{width:30px;height:30px;border-radius:7px}.sth-lg b{color:var(--sthac)}
.sth-hd nav a{font-size:.92rem;text-decoration:none;color:#1f1d1a;opacity:.75;margin-left:14px}.sth-hd nav a:hover{opacity:1;color:#1f1d1a}
.sth-mn{max-width:760px;margin:0 auto;padding:28px 16px 48px}
.sth-bc{font-size:.85rem;color:var(--sthmu);margin-bottom:10px}.sth-bc a{color:var(--sthmu)}
h1{font-size:clamp(1.6rem,4.5vw,2.25rem);line-height:1.25;margin:.2em 0 .5em;overflow-wrap:anywhere}
h2{font-size:1.35rem;line-height:1.35;margin:1.9em 0 .55em}h3{font-size:1.1rem;margin:1.4em 0 .4em}
.sth-dt{font-size:.85rem;color:var(--sthmu);margin-bottom:1.6em}
table{width:100%;border-collapse:collapse;font-size:.93rem;margin:1.2em 0;display:block;overflow-x:auto}
th,td{border:1px solid var(--sthln);padding:8px 10px;text-align:left;vertical-align:top}th{background:var(--sthcd)}
ul,ol{padding-left:1.3em}li{margin:.3em 0}
.sth-ls{display:grid;gap:14px;list-style:none;padding:0;margin:1.2em 0 2em}.sth-ls li{background:var(--sthcd);border:1px solid var(--sthln);border-left:4px solid var(--sthac);padding:14px 16px;margin:0}
.sth-ls a{font-weight:700;text-decoration:none;color:var(--sthink);line-height:1.4;display:block}
.sth-ls p{margin:.35em 0 0;font-size:.92rem;color:var(--sthmu);line-height:1.55}
.sth-rl{margin-top:2.6em;background:var(--sthcd);border:1px solid var(--sthln);padding:16px 18px}
.sth-rl h2{margin:0 0 .4em;font-size:1.05rem}
.sth-ft{border-top:1px solid var(--sthln);font-size:.85rem;color:var(--sthmu)}
.sth-fi{max-width:1080px;margin:0 auto;padding:20px 16px}
@media(max-width:560px){body{font-size:16px}.sth-hd nav a{margin:0 12px 0 0}}