:root{--bg:#fbfaf7;--ink:#1d1d1b;--muted:#6b6b66;--line:#e5e2da;--card:#ffffff;--accent:#2b5b9e;--up:#1f7a4d;--down:#b23a2f}
*{box-sizing:border-box}
html{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;font-size:16px;line-height:1.5;color:var(--ink);background:var(--bg)}
body{margin:0}
a{color:var(--accent)}
main{max-width:860px;margin:0 auto;padding:1rem}
.site-header{display:flex;align-items:center;justify-content:space-between;gap:1rem;max-width:860px;margin:0 auto;padding:.8rem 1rem;border-bottom:1px solid var(--line)}
.site-header .brand{display:flex;align-items:center;gap:.5rem;font-weight:700;text-decoration:none;color:var(--ink)}
.site-header .brand img{border-radius:8px}
.site-header nav a{margin-left:1rem;text-decoration:none;color:var(--muted)}
.hero{display:flex;gap:1.2rem;align-items:flex-start;padding:1.5rem 0}
.hero img{border-radius:16px}
.hero h1{margin:0 0 .3rem}
.hero .p-note{margin:.2rem 0 .5rem;color:var(--muted)}
.card{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:1rem 1.2rem;margin:1rem 0}
.card h3{margin:.2rem 0}
.card time{color:var(--muted);font-size:.9rem}
.post-text{white-space:pre-wrap;font-family:inherit;font-size:1.02rem;margin:.6rem 0;background:transparent}
.chart{max-width:100%;height:auto;border:1px solid var(--line);border-radius:8px;margin:.5rem 0}
.post h1{margin:.4rem 0}
.p-author{display:inline-flex;align-items:center;gap:.4rem;color:var(--muted);text-decoration:none;font-size:.9rem}
.p-author img{border-radius:6px}
.table-wrap{overflow-x:auto;margin-top:1.5rem}
table{border-collapse:collapse;width:100%;font-size:.92rem}
th,td{padding:.4rem .5rem;border-bottom:1px solid var(--line);text-align:left;vertical-align:top}
th{color:var(--muted);font-weight:600}
td.num,th.num{text-align:right;font-variant-numeric:tabular-nums}
.up{color:var(--up)}.down{color:var(--down)}
.meta,.site-footer{color:var(--muted);font-size:.88rem}
.site-footer{max-width:860px;margin:2rem auto;padding:1rem;border-top:1px solid var(--line)}
.prose h1{margin-top:.5rem}
.visually-hidden{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0)}
@media (max-width:600px){.hero{flex-direction:column}.site-header{flex-direction:column;align-items:flex-start}.site-header nav a{margin:0 1rem 0 0}}