:root{--bg:#f7f8fa;--surface:#fff;--text:#13201c;--muted:#5b6b66;--line:#dde5e2;--accent:#2563eb;--accent-ink:#fff;--shopee:#ee4d2d;--lazada:#0f146d;--radius:14px;--max:1040px}*{box-sizing:border-box}html{-webkit-text-size-adjust:100%}body{background:var(--bg);color:var(--text);margin:0;font:16px/1.65 Sarabun,system-ui,-apple-system,sans-serif}a{color:var(--accent)}h1,h2,h3{line-height:1.25}.container{max-width:var(--max);margin:0 auto;padding:0 16px}.site-header{background:var(--surface);border-bottom:1px solid var(--line)}.site-header .container{justify-content:space-between;align-items:center;gap:12px;min-height:60px;padding-top:8px;padding-bottom:8px;display:flex}.logo{color:var(--text);font-weight:700;text-decoration:none}.nav{flex-wrap:wrap;justify-content:flex-end;gap:14px;font-size:14px;display:flex}.nav a{color:var(--muted);text-decoration:none}.rank{color:var(--accent);margin-right:6px}.guide-links{grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:16px;margin:24px 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