:root{--fg:#111827;--muted:#4b5563;--line:#e5e7eb;--accent:#0f766e}
*{box-sizing:border-box}
body{margin:0;background:#f9fafb;color:var(--fg);font:16px/1.65 -apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif}
main{max-width:900px;margin:0 auto;padding:32px 20px 64px}
h1{font-size:1.9rem;line-height:1.25;margin:0 0 .4em}
h2{margin-top:2.2em;border-bottom:1px solid var(--line);padding-bottom:.3em;font-size:1.3rem}
h3{margin-top:1.6em;font-size:1.08rem}
table{border-collapse:collapse;width:100%;margin:1em 0;font-size:.94rem}
th,td{border:1px solid var(--line);padding:.5em .6em;text-align:left;vertical-align:top}
th{background:#f3f4f6}
blockquote{margin:1.2em 0;padding:.8em 1em;background:#ecfdf5;border-left:4px solid var(--accent);color:#064e3b}
code{background:#f3f4f6;padding:.1em .35em;border-radius:4px;font-size:.9em}
a{color:#0b5cab}
.meta{background:#fff;border:1px solid var(--line);border-radius:10px;padding:14px 16px;margin:0 0 26px;font-size:.92rem;color:var(--muted)}
.meta strong{color:var(--fg)}
@media(max-width:640px){table{font-size:.86rem}}