@import url("https://fonts.googleapis.com/css2?family=Barlow+Condensed:wght@500;600;700&family=IBM+Plex+Sans:wght@400;500;600&family=IBM+Plex+Mono:wght@400;500&family=Noto+Sans+SC:wght@400;500;700&display=swap");
/* invest 站的文章版式：和幻灯片同一套颜色和字体，正常的长文排版 */
:root{
  --bg:#0B0F14; --surface:#121820; --surface2:#1A222C; --line:#243040;
  --ink:#E6EBF0; --ink2:#A9B4BF; --muted:#6F7C89; --accent:#C97A18;
  --neg:#D9534F; --pos:#4F9F7A;
}
@media (prefers-color-scheme: light){
  :root:not([data-theme="dark"]){
    --bg:#F6F7F9; --surface:#FFFFFF; --surface2:#EEF1F4; --line:#D5DBE2;
    --ink:#12181F; --ink2:#3E4A56; --muted:#7A8592; --accent:#B8731A;
    --neg:#C0392B; --pos:#2F8A62;
  }
}
:root[data-theme="light"]{
  --bg:#F6F7F9; --surface:#FFFFFF; --surface2:#EEF1F4; --line:#D5DBE2;
  --ink:#12181F; --ink2:#3E4A56; --muted:#7A8592; --accent:#B8731A;
  --neg:#C0392B; --pos:#2F8A62;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--ink);font-family:"IBM Plex Sans","Noto Sans SC",-apple-system,"PingFang SC",sans-serif;font-size:17px;line-height:1.75;-webkit-font-smoothing:antialiased}
.article{max-width:46rem;margin-inline:auto;padding:72px clamp(16px,5vw,40px) 96px}
.eyebrow{display:flex;gap:14px;align-items:baseline;color:var(--muted);font-size:13px;letter-spacing:.12em;text-transform:uppercase;font-family:"IBM Plex Mono",monospace}
.eyebrow .n{color:var(--accent)}
.article h1{font-family:"Barlow Condensed","Noto Sans SC",sans-serif;font-weight:700;font-size:clamp(34px,5vw,54px);line-height:1.02;letter-spacing:-.01em;margin:14px 0 18px;text-wrap:balance}
.article h2{font-family:"Barlow Condensed","Noto Sans SC",sans-serif;font-weight:600;font-size:clamp(24px,3vw,32px);line-height:1.1;margin:2.4em 0 .6em;letter-spacing:-.01em}
.article h3{font-family:"Barlow Condensed","Noto Sans SC",sans-serif;font-weight:600;font-size:21px;margin:1.8em 0 .4em}
.article p{margin:0 0 1.1em}
.thesis{font-size:19px;color:var(--ink2);margin:0 0 1.6em}
.article ul,.article ol{padding-left:1.4em;margin:0 0 1.2em;color:var(--ink2)}
.article li+li{margin-top:.35em}
.article strong{color:var(--ink)}
.article a{color:var(--accent);text-decoration:underline;text-decoration-thickness:1px;text-underline-offset:.2em}
.formula{font-family:"IBM Plex Mono",monospace;background:var(--surface2);border:1px solid var(--line);border-radius:6px;padding:12px 16px;font-size:15px;color:var(--ink);overflow-x:auto;margin:0 0 1.1em}
.callout{background:var(--surface);border:1px solid var(--line);border-left:3px solid var(--accent);border-radius:6px;padding:14px 18px;color:var(--ink2);font-size:15.5px;line-height:1.65;margin:1.4em 0}
.callout b{color:var(--ink)}
.callout.warn{border-left-color:var(--neg)}
.tw{overflow-x:auto;margin:1.2em 0}
table{border-collapse:collapse;width:100%;font-size:14.5px}
th,td{padding:9px 12px;border-bottom:1px solid var(--line);text-align:left;vertical-align:top}
th{color:var(--muted);font-weight:500;font-size:12px;letter-spacing:.06em;text-transform:uppercase}
td.mono,th.mono{font-family:"IBM Plex Mono",monospace;font-variant-numeric:tabular-nums;white-space:nowrap}
tr.hl td{background:var(--surface2)}
.kpis{display:grid;grid-template-columns:repeat(auto-fit,minmax(11rem,1fr));gap:14px;margin:1.4em 0}
.kpi{background:var(--surface);border:1px solid var(--line);border-radius:6px;padding:14px 16px;display:flex;flex-direction:column;gap:4px}
.kpi .l{font-size:12px;letter-spacing:.1em;text-transform:uppercase;color:var(--muted)}
.kpi .v{font-family:"Barlow Condensed",sans-serif;font-weight:600;font-size:32px;line-height:1;font-variant-numeric:tabular-nums}
.kpi .s{font-size:13px;color:var(--ink2)}
.quote{font-family:"Barlow Condensed","Noto Sans SC",sans-serif;font-size:clamp(22px,2.4vw,28px);font-weight:500;line-height:1.3;color:var(--ink);border-left:3px solid var(--accent);padding-left:18px;margin:1.8em 0}
.foot{font-size:13px;color:var(--muted);line-height:1.6;border-top:1px solid var(--line);padding-top:16px;margin-top:3em}
.neg{color:var(--neg)}.pos{color:var(--pos)}