:root{
  --bg:#0D111C;--bg2:#121828;--surface:#172034;--surface2:#1D2740;
  --fg:#E8EAF0;--muted:#9BA4B8;--line:#26304A;--accent:#E9B872;--lapis:#8EA6FF;
  --ok:#86D9AC;--ok-bg:#15332A;--wip:#F0C979;--wip-bg:#3A2F17;
  --shadow:0 18px 50px -20px rgba(0,0,0,.65);
  --f-display:"Shippori Mincho B1","Hiragino Mincho ProN","Yu Mincho",serif;
  --f-body:"Zen Kaku Gothic New","Hiragino Sans","Yu Gothic",system-ui,sans-serif;
  --f-mono:"JetBrains Mono",ui-monospace,Menlo,monospace;
  color-scheme:dark}
@media (prefers-color-scheme: light){:root:not([data-theme="dark"]){
  --bg:#F1F3F7;--bg2:#E8ECF3;--surface:#FFFFFF;--surface2:#F5F7FB;
  --fg:#141A28;--muted:#586179;--line:#D8DDE8;--accent:#9A6213;--lapis:#2F4CC0;
  --ok:#22704A;--ok-bg:#DCF0E4;--wip:#7C5810;--wip-bg:#F6EACB;
  --shadow:0 18px 40px -22px rgba(30,40,70,.35);color-scheme:light}}
:root[data-theme="light"]{
  --bg:#F1F3F7;--bg2:#E8ECF3;--surface:#FFFFFF;--surface2:#F5F7FB;
  --fg:#141A28;--muted:#586179;--line:#D8DDE8;--accent:#9A6213;--lapis:#2F4CC0;
  --ok:#22704A;--ok-bg:#DCF0E4;--wip:#7C5810;--wip-bg:#F6EACB;
  --shadow:0 18px 40px -22px rgba(30,40,70,.35);color-scheme:light}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--fg);font-family:var(--f-body);font-size:15.5px;line-height:1.9;-webkit-font-smoothing:antialiased;overflow-x:hidden}
a{color:var(--lapis)}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:6px}
.wrap{max-width:960px;margin:0 auto;padding-inline:clamp(16px,4vw,40px)}
.mono{font-family:var(--f-mono);font-variant-numeric:tabular-nums}
.eyebrow{font-family:var(--f-mono);font-size:11.5px;letter-spacing:.16em;text-transform:uppercase;color:var(--muted)}
.nav{position:sticky;top:0;z-index:5;background:color-mix(in srgb,var(--bg) 82%,transparent);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);border-bottom:1px solid var(--line)}
.nav .wrap{display:flex;align-items:center;gap:14px;height:56px}
.brand{font-family:var(--f-display);font-weight:800;font-size:17px;color:var(--fg);text-decoration:none;letter-spacing:.04em;white-space:nowrap}
.brand b{color:var(--accent)}
.nav .sp{flex:1}
.nav a.nl{color:var(--muted);text-decoration:none;font-size:13.5px;white-space:nowrap;padding:6px 10px;border-radius:999px}
.nav a.nl:hover{color:var(--fg);background:var(--surface)}
.hero{padding:clamp(32px,6vw,72px) 0 24px;border-bottom:1px solid var(--line);background:radial-gradient(120% 90% at 85% 0%,color-mix(in srgb,var(--accent) 12%,transparent),transparent 60%)}
h1{font-family:var(--f-display);font-weight:800;font-size:clamp(28px,5vw,46px);line-height:1.25;letter-spacing:.02em;margin:.3em 0 .4em;overflow-wrap:anywhere}
h2{font-family:var(--f-display);font-weight:800;font-size:clamp(20px,3vw,26px);line-height:1.4;margin:0 0 .7em}
h3{font-size:16px;margin:1.6em 0 .4em}
.chips{display:flex;flex-wrap:wrap;gap:6px;margin:6px 0 0}
.chip{display:inline-flex;align-items:center;font-size:12.5px;line-height:1.5;padding:2px 10px;border-radius:999px;border:1px solid var(--line);background:var(--surface);color:var(--muted)}
.chip.ok{color:var(--ok);background:var(--ok-bg);border-color:transparent}
.chip.wip{color:var(--wip);background:var(--wip-bg);border-color:transparent}
.facts{display:grid;grid-template-columns:auto 1fr;gap:4px 14px;margin:18px 0 0;font-size:14px}
.facts dt{color:var(--muted)}
.facts dd{margin:0;overflow-wrap:anywhere}
.cta{display:flex;flex-wrap:wrap;gap:10px;margin:22px 0 0}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:44px;padding:0 20px;border-radius:999px;border:1px solid var(--line);background:var(--surface);color:var(--fg);text-decoration:none;font-weight:700;font-size:14.5px}
.btn:hover{border-color:var(--accent)}
.btn.primary{background:var(--accent);border-color:var(--accent);color:var(--bg)}
.notice{margin:22px 0 0;padding:14px 18px;border-radius:14px;border:1px dashed var(--wip);background:var(--wip-bg);color:var(--wip);font-weight:700}
section.blk{padding:clamp(28px,5vw,48px) 0 0}
.panel{background:var(--surface);border:1px solid var(--line);border-radius:16px;padding:clamp(16px,3vw,26px);box-shadow:var(--shadow)}
.panel p{margin:0 0 1em}
.panel p:last-child{margin-bottom:0}
.video{position:relative;aspect-ratio:16/9;border-radius:16px;overflow:hidden;background:#000;border:1px solid var(--line);box-shadow:var(--shadow)}
.video iframe{position:absolute;inset:0;width:100%;height:100%;border:0}
.video-none{display:flex;align-items:center;justify-content:center;aspect-ratio:16/9;max-height:260px;width:100%;border-radius:16px;border:1px dashed var(--line);background:var(--bg2);color:var(--muted);font-weight:700}
.desc h3{font-size:14.5px;color:var(--accent);margin:1.4em 0 .3em}
.desc ul{margin:0 0 1em;padding-left:1.2em}
ol.scenes{list-style:none;margin:0;padding:0;counter-reset:sc}
ol.scenes li{counter-increment:sc;display:grid;grid-template-columns:2.4em 1fr auto;gap:4px 10px;align-items:baseline;padding:10px 0;border-top:1px solid var(--line)}
ol.scenes li:first-child{border-top:0}
ol.scenes li::before{content:counter(sc,decimal-leading-zero);font-family:var(--f-mono);font-size:12px;color:var(--muted)}
ol.scenes .n{font-weight:700}
ol.scenes .t{display:block;color:var(--muted);font-size:14px}
.seek{font-family:var(--f-mono);font-size:12.5px;border:1px solid var(--line);background:var(--surface2);color:var(--fg);border-radius:999px;padding:3px 10px;cursor:pointer;white-space:nowrap}
.seek:hover{border-color:var(--accent);color:var(--accent)}
.small{font-size:13px;color:var(--muted)}
ol.src{margin:0;padding-left:0;list-style:none;font-size:14px}
ol.src li{padding:7px 0;border-top:1px solid var(--line);overflow-wrap:anywhere}
ol.src li:first-child{border-top:0}
ol.src .id{font-family:var(--f-mono);font-size:11.5px;color:var(--muted);margin-right:8px}
.legend{display:flex;flex-wrap:wrap;gap:6px;margin:0 0 10px}
.prose h2{margin-top:1.6em;padding-top:1em;border-top:1px solid var(--line);font-size:20px}
.prose h2:first-child{margin-top:0;padding-top:0;border-top:0}
.prose h3{font-size:16px}
.prose li{margin:.3em 0}
.prose .sub{color:var(--muted);font-size:.8em}
footer{margin-top:clamp(48px,8vw,80px);border-top:1px solid var(--line);padding:24px 0 40px;color:var(--muted);font-size:13px}
footer .wrap{display:flex;flex-wrap:wrap;gap:8px 18px;align-items:center}
footer a{color:var(--muted)}
footer a:hover{color:var(--fg)}
@media (max-width:560px){.nav a.nl.opt{display:none}ol.scenes li{grid-template-columns:2.2em 1fr}ol.scenes .seek{grid-column:2;justify-self:start}}