@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");
:root{
  --bg:#0B0F14; --surface:#121820; --surface2:#1A222C; --line:#243040;
  --ink:#E6EBF0; --ink2:#A9B4BF; --muted:#6F7C89;
  --accent:#C97A18; --steel:#9CA9B5;
  --seg-space:#C97A18; --seg-conn:#3D8FD1; --seg-ai:#D4649A;
  --cursor:#8E6BB8; --ship:#5A6E82; --cash:#4F9F7A;
  --neg:#D9534F; --pos:#4F9F7A;
  --grid:#1E2934; --future:#0F151C;
}
@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; --steel:#5B6672;
    --seg-space:#B8731A; --seg-conn:#2E7DAA; --seg-ai:#B8407D;
    --cursor:#6F4FA0; --ship:#6E8296; --cash:#2F8A62;
    --neg:#C0392B; --pos:#2F8A62;
    --grid:#E3E8ED; --future:#EEF1F4;
  }
}
:root[data-theme="light"]{
  --bg:#F6F7F9; --surface:#FFFFFF; --surface2:#EEF1F4; --line:#D5DBE2;
  --ink:#12181F; --ink2:#3E4A56; --muted:#7A8592;
  --accent:#B8731A; --steel:#5B6672;
  --seg-space:#B8731A; --seg-conn:#2E7DAA; --seg-ai:#B8407D;
  --cursor:#6F4FA0; --ship:#6E8296; --cash:#2F8A62;
  --neg:#C0392B; --pos:#2F8A62;
  --grid:#E3E8ED; --future:#EEF1F4;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
@media (prefers-reduced-motion: reduce){html{scroll-behavior:auto}}
body{margin:0;background:var(--bg);color:var(--ink);
  font-family:"IBM Plex Sans","Noto Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,sans-serif;
  font-size:16px;line-height:1.6;-webkit-font-smoothing:antialiased}
.mono{font-family:"IBM Plex Mono",ui-monospace,Menlo,monospace;font-variant-numeric:tabular-nums}
a{color:var(--accent)}
.shell{display:grid;grid-template-columns:220px 1fr;min-height:100vh}
nav.rail{position:sticky;top:0;height:100vh;border-right:1px solid var(--line);padding:28px 18px;
  display:flex;flex-direction:column;gap:6px;background:var(--bg);overflow:auto}
nav.rail .brand{font-size:13px;letter-spacing:.14em;text-transform:uppercase;color:var(--muted);margin-bottom:14px}
nav.rail a{display:grid;grid-template-columns:28px 1fr;gap:8px;align-items:baseline;
  color:var(--ink2);text-decoration:none;font-size:13px;padding:6px 8px;border-radius:4px}
nav.rail a .n{font-family:"IBM Plex Mono",monospace;font-size:12px;color:var(--muted)}
nav.rail a.on{background:var(--surface2);color:var(--ink)}
nav.rail a.on .n{color:var(--accent)}
nav.rail a:focus-visible{outline:2px solid var(--accent);outline-offset:1px}
nav.rail .hint{margin-top:auto;font-size:11px;color:var(--muted);line-height:1.5}
main{min-width:0}
section.panel{min-height:100vh;padding:56px 64px;border-bottom:1px solid var(--line);
  display:flex;flex-direction:column;justify-content:center;gap:24px}
.eyebrow{display:flex;gap:14px;align-items:baseline;color:var(--muted);font-size:13px;letter-spacing:.12em;text-transform:uppercase}
.eyebrow .n{font-family:"IBM Plex Mono",monospace;color:var(--accent)}
h1,h2{margin:0;text-wrap:balance}
h1{font-size:clamp(40px,6vw,76px);line-height:1.02}
h2{font-size:clamp(28px,3.4vw,42px);line-height:1.12}
.thesis{font-size:clamp(17px,1.5vw,20px);color:var(--ink2);max-width:62ch;margin:0}
.grid2{display:grid;grid-template-columns:1.25fr 1fr;gap:36px;align-items:start}
.grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.grid4{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.card{background:var(--surface);border:1px solid var(--line);border-radius:6px;padding:18px 20px}
.kpi{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:38px;line-height:1;font-variant-numeric:tabular-nums}
.kpi .s{font-size:13px;color:var(--ink2)}
ul.pts{margin:0;padding-left:1.1em;display:flex;flex-direction:column;gap:8px;color:var(--ink2);max-width:60ch}
ul.pts li strong{color:var(--ink);font-weight:600}
figure{margin:0}
figcaption{font-size:12px;color:var(--muted);margin-top:8px}
svg text{font-family:"IBM Plex Sans","Noto Sans SC",sans-serif;fill:var(--ink2);font-size:12px}
svg text.mono{font-family:"IBM Plex Mono",monospace;font-variant-numeric:tabular-nums}
svg .grid{stroke:var(--grid);stroke-width:1}
svg .axis{stroke:var(--line);stroke-width:1}
.legend{display:flex;gap:16px;flex-wrap:wrap;font-size:12px;color:var(--ink2);margin-top:6px}
.legend i{display:inline-block;width:10px;height:10px;border-radius:2px;margin-right:6px;vertical-align:-1px}
table{border-collapse:collapse;width:100%;font-size:13.5px}
th,td{padding:8px 10px;border-bottom:1px solid var(--line);text-align:right;white-space:nowrap}
th{color:var(--muted);font-weight:500;font-size:12px;letter-spacing:.06em;text-transform:uppercase}
th:first-child,td:first-child{text-align:left}
td.mono,th.mono{font-family:"IBM Plex Mono",monospace;font-variant-numeric:tabular-nums}
tr.hl td{background:var(--surface2);font-weight:600}
td.left{text-align:left;color:var(--muted)}
.tw{overflow-x:auto}
.tag{display:inline-block;font-size:11px;letter-spacing:.08em;text-transform:uppercase;padding:2px 8px;border-radius:3px;border:1px solid var(--line);color:var(--ink2)}
.neg{color:var(--neg)} .pos{color:var(--pos)}
.foot{font-size:12px;color:var(--muted);line-height:1.6;max-width:80ch}
.biz{display:grid;grid-template-columns:repeat(3,1fr);gap:28px}
.biz .col{border-top:3px solid var(--c);padding-top:12px;color:var(--c)}
.biz .colhead{font-size:12px;letter-spacing:.12em;text-transform:uppercase;color:var(--c);margin-bottom:6px}
.biz .brand{display:grid;grid-template-columns:52px 1fr;gap:14px;align-items:center;padding:12px 0;border-bottom:1px solid var(--line)}
.biz .brand svg{width:52px;height:52px;display:block}
.biz .brand b{display:block;color:var(--ink);font-size:16px;font-weight:600;line-height:1.2}
.biz .brand span{font-size:13px;color:var(--ink2);line-height:1.45}
@media (max-width:900px){.biz{grid-template-columns:1fr}}
.def{border-left:2px solid var(--accent);padding:4px 0 4px 14px;color:var(--ink2);max-width:66ch;font-size:15px}
.def b{color:var(--ink)}
@media (max-width:900px){
  .shell{grid-template-columns:1fr}
  nav.rail{position:static;height:auto;flex-direction:row;flex-wrap:wrap;gap:4px;padding:14px;border-right:0;border-bottom:1px solid var(--line)}
  nav.rail .brand,nav.rail .hint{display:none}
  nav.rail a{grid-template-columns:auto;font-size:12px;padding:4px 8px}
  nav.rail a span:last-child{display:none}
  section.panel{padding:40px 22px;min-height:auto}
  .grid2,.grid3,.grid4{grid-template-columns:1fr}
}
/* ---- shared deck extras ---- */
.pts{margin:0;padding-left:18px;color:var(--ink2);font-size:15px;line-height:1.6}
.pts li+li{margin-top:8px}
.pts strong{color:var(--ink)}
.chain{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
.chain .step{background:var(--surface);border:1px solid var(--line);border-radius:6px;padding:14px 16px;position:relative}
.chain .step.key{border-color:var(--accent)}
.chain .step .n{font-family:"IBM Plex Mono",monospace;color:var(--accent);font-size:12px}
.chain .step b{display:block;font-family:"Barlow Condensed",sans-serif;font-size:22px;font-weight:600;margin:4px 0 6px;color:var(--ink)}
.chain .step span{display:block;font-size:13px;color:var(--ink2);line-height:1.45}
.big{font-family:"Barlow Condensed",sans-serif;font-weight:700;font-size:clamp(36px,5vw,64px);line-height:1;color:var(--ink)}
.big.neg{color:var(--neg)}.big.pos{color:var(--pos)}
.quote{font-family:"Barlow Condensed",sans-serif;font-size:clamp(22px,2.4vw,32px);font-weight:500;line-height:1.25;color:var(--ink);max-width:28ch;border-left:3px solid var(--accent);padding-left:18px}
.callout{background:var(--surface2);border:1px solid var(--line);border-radius:6px;padding:14px 18px;color:var(--ink2);font-size:14px;line-height:1.6}
.callout b{color:var(--ink)}
.callout.warn{border-color:var(--neg)}
.cols{display:grid;grid-template-columns:1fr 1fr;gap:28px;align-items:start}
.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}
.belief{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.belief h3{font-family:"Barlow Condensed",sans-serif;font-size:22px;margin:0 0 8px;color:var(--ink)}
.belief p{margin:0 0 8px;font-size:14px;color:var(--ink2);line-height:1.55}
.belief .w{font-size:13px;color:var(--neg);border-top:1px solid var(--line);padding-top:8px;margin-top:4px}
.rule{border:0;border-top:1px solid var(--line);margin:0}
.panel h2{font-family:"Barlow Condensed",sans-serif;font-weight:600;font-size:clamp(28px,3.4vw,44px);line-height:1.05;margin:0;letter-spacing:-.01em}
.panel h1{font-family:"Barlow Condensed",sans-serif;font-weight:700;font-size:clamp(40px,6vw,76px);line-height:.98;margin:0;letter-spacing:-.01em}
@media (max-width:900px){.chain,.belief{grid-template-columns:1fr 1fr}.cols{grid-template-columns:1fr}}
@media (max-width:560px){.chain,.belief{grid-template-columns:1fr}}