@font-face{font-family:"Newsreader";src:url("/fonts/newsreader-500.woff2") format("woff2");font-weight:500;font-display:swap}
@font-face{font-family:"IBM Plex Sans";src:url("/fonts/ibm-plex-sans-400.woff2") format("woff2");font-weight:400;font-display:swap}
@font-face{font-family:"IBM Plex Sans";src:url("/fonts/ibm-plex-sans-500.woff2") format("woff2");font-weight:500;font-display:swap}
:root{
  --bg:#0b0a09;--surface:#141311;--raised:#1b1a17;--fg:#f4f0e6;--muted:#8e8a80;--subtle:#6b675e;
  --accent:#e8e2d4;--accent-fg:#0b0a09;--low:#6a9088;--high:#b56a5c;--warn:#c4a574;
  --border:color-mix(in srgb,var(--fg) 11%,transparent);--max:1040px;
  --font-display:"Newsreader","Songti SC","STSong",serif;
  --font-sans:"IBM Plex Sans","PingFang SC",system-ui,sans-serif;
}
*{box-sizing:border-box}
html,body{margin:0;min-height:100%}
body{font-family:var(--font-sans);color:var(--fg);background:var(--bg)}
a{color:inherit}
.skip-link{position:absolute;left:12px;top:-48px;background:var(--accent);color:var(--accent-fg);padding:8px 14px;border-radius:10px}
.skip-link:focus{top:12px}
.site-header{position:sticky;top:0;z-index:10;background:var(--bg);border-bottom:1px solid var(--border)}
.nav{width:min(var(--max),calc(100% - 40px));margin:0 auto;min-height:64px;display:flex;align-items:center;justify-content:space-between;gap:16px}
.brand{display:inline-flex;align-items:center;gap:10px;text-decoration:none;font-family:var(--font-display);font-size:18px}
.brand img{display:block}
.brand-sub{display:block;font-family:var(--font-sans);font-size:11px;color:var(--subtle)}
.nav-links{display:flex;flex-wrap:wrap;gap:14px;align-items:center;font-size:14px;font-weight:500;color:var(--muted)}
.nav-links a{text-decoration:none}
.nav-links .download{background:var(--accent);color:var(--accent-fg);border-radius:10px;padding:8px 12px}
.lang-switch{position:relative}
.lang-switch summary{cursor:pointer;list-style:none;font-weight:500}
.lang-switch summary::-webkit-details-marker{display:none}
.lang-switch[open] summary{color:var(--fg)}
.lang-switch-menu{position:absolute;right:0;top:calc(100% + 8px);min-width:148px;background:var(--surface);border:1px solid var(--border);border-radius:10px;padding:6px;z-index:20}
.lang-switch-menu a{display:block;padding:8px 10px;text-decoration:none;border-radius:8px;font-weight:500}
.lang-switch-menu a[aria-current="page"]{background:var(--raised);color:var(--fg)}
.policy-page{width:min(760px,calc(100% - 40px));margin:0 auto;padding:48px 0 80px}
.eyebrow{color:var(--subtle);font-size:12px;margin:0 0 10px}
h1,h2{font-family:var(--font-display);font-weight:500;letter-spacing:-.3px;line-height:1.2}
h1{font-size:clamp(28px,5vw,42px);margin:0 0 12px}
h2{font-size:22px;margin:28px 0 10px}
.lede{font-size:18px;line-height:1.5;color:var(--muted)}
p,li{color:var(--muted);line-height:1.55}
.note{font-size:13px;color:var(--subtle)}
.stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(140px,1fr));gap:10px;margin:22px 0}
.stat{background:var(--surface);border:1px solid var(--border);border-radius:14px;padding:14px 16px}
.stat-value{font-family:var(--font-display);font-size:22px}
.stat-label{color:var(--subtle);font-size:12px;margin-top:4px}
.stat.low .stat-value{color:var(--low)}
.stat.high .stat-value{color:var(--high)}
.stat.warn .stat-value{color:var(--warn)}
.faq-list{display:grid;gap:8px}
.faq-list details{background:var(--surface);border:1px solid var(--border);border-radius:14px;padding:12px 16px}
.faq-list summary{cursor:pointer;font-weight:500;color:var(--fg)}
.sym-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:8px}
.sym{display:flex;flex-direction:column;gap:2px;background:var(--surface);border:1px solid var(--border);border-radius:12px;padding:12px 14px;text-decoration:none}
.sym span{color:var(--subtle);font-size:12px}
.cta-row{display:flex;flex-wrap:wrap;gap:10px;margin:22px 0 16px}
.button{display:inline-flex;align-items:center;padding:10px 14px;border-radius:10px;text-decoration:none;font-weight:500}
.button.primary{background:var(--accent);color:var(--accent-fg)}
.button.secondary{border:1px solid var(--border)}
.site-footer{border-top:1px solid var(--border);padding:24px 0 40px}
.footer-inner,.footer-legal{width:min(var(--max),calc(100% - 40px));margin:0 auto;color:var(--muted)}
.footer-inner{display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap}
.footer-links{display:flex;gap:14px}
.footer-links a{color:var(--fg);font-weight:500}
.footer-legal{margin-top:16px;font-size:13px;color:var(--subtle)}
.foot{margin-top:28px}
.kline-card{margin:24px 0;background:var(--surface);border:1px solid var(--border);border-radius:16px;padding:14px 14px 16px}
.kline-head h2{margin:0 0 6px}
.kline{display:block;width:100%;height:auto;touch-action:none;cursor:crosshair;background:var(--raised);border-radius:12px}
.readout{font-family:"IBM Plex Mono",ui-monospace,monospace;font-size:12px;color:var(--fg);margin:10px 0 0}
.nine-log{margin:12px 0 0;padding-left:18px;color:var(--muted);font-size:13px}
.install{margin:24px 0;padding:18px 18px 8px;border:1px solid var(--border);border-radius:16px;background:linear-gradient(180deg,color-mix(in srgb,var(--setup,#c4a574) 12%,transparent),var(--surface))}
.install h2{margin:0 0 10px}
.install .kicker{color:var(--warn);font-size:12px;margin:0 0 6px}
.install ul{margin:0 0 8px;padding-left:18px}
.kline-empty{padding:20px}
.crumbs-wrap{width:min(1040px,calc(100% - 40px));margin:16px auto 0}
.crumbs ol{display:flex;flex-wrap:wrap;list-style:none;margin:0;padding:0;font-size:13px;color:var(--subtle)}
.crumbs li{display:flex;align-items:center}
.crumbs li:not(:last-child)::after{content:"/";margin:0 8px}
.crumbs a{color:var(--muted);text-decoration:none}
.crumbs [aria-current="page"]{color:var(--fg)}
.footer-grid{width:min(1040px,calc(100% - 40px));margin:0 auto 24px;display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.footer-heading{margin:0 0 10px;color:var(--subtle);font-size:12px}
.footer-col{display:grid;gap:8px}
.footer-col a{color:var(--fg);text-decoration:none;font-weight:500;font-size:14px}
.learn-row{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px;margin:16px 0}
.learn-row a{display:block;padding:12px 14px;background:var(--surface);border:1px solid var(--border);border-radius:14px;text-decoration:none}
.learn-row a strong{display:block;margin-bottom:4px}
.learn-row a span{color:var(--muted);font-size:13px}
.page-toc{display:flex;flex-wrap:wrap;gap:12px;margin:8px 0 18px;font-size:13px}
.page-toc a{color:var(--muted)}
.nav-links a[aria-current="page"]{color:var(--fg)}
.crumbs-wrap + .policy-page{padding-top:20px}
@media (max-width:800px){.sym-grid,.footer-grid,.learn-row{grid-template-columns:1fr}}