:root{
  --ink:#0B0F0E;
  --deep:#0E211C;
  --panel:#143029;
  --panel-hi:#1D4037;
  --lime:#C8F751;
  --lime-dim:#8FBF2E;
  --amber:#F2A33C;
  --amber-bg:#3A2A16;
  --red:#E5484D;
  --text:#E9EFEA;
  --muted:#9FB0A7;
  --line:#233A33;
  --font-display:"Barlow Condensed","Oswald",Impact,"Noto Sans SC","PingFang SC",sans-serif;
  --font-body:"Noto Sans SC","Source Han Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
  --font-mono:"JetBrains Mono","Roboto Mono",ui-monospace,SFMono-Regular,Menlo,monospace;
  --shell-max:1560px;
  --gutter:clamp(16px,4vw,40px);
  --ease:cubic-bezier(.2,.8,.2,1);
  --t-fast:120ms;
  --t-base:180ms;
  --rail-w:214px;
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
html,body{margin:0;padding:0}
h1,h2,h3,h4,p,figure,blockquote,dl,dd{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
img,svg,picture{display:block;max-width:100%;height:auto}
button{font:inherit;color:inherit;background:none;border:0;padding:0;cursor:pointer}
a{color:inherit}
body{
  background-color:var(--ink);
  background-image:repeating-linear-gradient(90deg,rgba(233,239,234,.016) 0 1px,transparent 1px 96px);
  color:var(--text);
  font-family:var(--font-body);
  font-size:16px;
  line-height:1.75;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
  overflow-x:hidden;
}
@media (min-width:768px){body{font-size:17px}}

:where(a,button,summary,input,select,textarea,[tabindex]):focus-visible{
  outline:2px solid var(--lime);
  outline-offset:2px;
  border-radius:2px;
}

body::after{
  content:"";
  position:fixed;
  top:0;
  left:0;
  width:100%;
  height:2px;
  z-index:120;
  pointer-events:none;
  background:linear-gradient(90deg,var(--lime),var(--lime-dim) 55%,var(--amber));
  transform:scaleX(var(--scroll-progress,0));
  transform-origin:0 50%;
}

/* ---------- utilities ---------- */
.shell{width:100%;max-width:var(--shell-max);margin:0 auto;padding-left:var(--gutter);padding-right:var(--gutter)}
.prose{max-width:42em;font-size:16px;line-height:1.85;color:var(--text)}
.prose>*+*{margin-top:1em}
.num{font-family:var(--font-mono);font-weight:700;font-variant-numeric:tabular-nums;font-feature-settings:"tnum" 1}
.h-display{font-family:var(--font-display);font-weight:700;line-height:.94;letter-spacing:.005em;text-transform:uppercase}
.visually-hidden{position:absolute;width:1px;height:1px;margin:-1px;padding:0;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0}
#main-content{scroll-margin-top:104px}

/* ---------- skip link ---------- */
.skip-link{
  position:fixed;
  top:-72px;
  left:14px;
  z-index:200;
  padding:10px 18px;
  border-radius:2px;
  background:var(--lime);
  color:#0B0F0E;
  font-size:13px;
  font-weight:700;
  letter-spacing:.06em;
  text-decoration:none;
  transition:top var(--t-base) var(--ease);
}
.skip-link:focus{top:14px}

/* ---------- header ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:linear-gradient(180deg,rgba(14,33,28,.99),rgba(11,15,14,.97));
  border-bottom:1px solid var(--line);
  box-shadow:0 1px 0 rgba(35,58,51,.6);
}
.header-shell{
  display:grid;
  grid-template-columns:var(--rail-w) minmax(0,1fr);
  align-items:stretch;
  max-width:var(--shell-max);
  margin:0 auto;
  padding-left:var(--gutter);
  padding-right:var(--gutter);
}

.brand-rail{
  position:relative;
  display:flex;
  flex-direction:column;
  justify-content:center;
  gap:6px;
  padding:14px 18px 14px 20px;
  border-right:1px solid var(--line);
  min-width:0;
}
.brand-rail::before{
  content:"";
  position:absolute;
  left:0;
  top:0;
  bottom:0;
  width:3px;
  background:linear-gradient(180deg,var(--lime),var(--lime-dim) 55%,rgba(200,247,81,0));
}
.brand-mark{display:block;text-decoration:none;color:var(--text);line-height:1}
.brand-mark__glyph{
  display:block;
  font-family:var(--font-display);
  font-weight:700;
  font-size:clamp(22px,2vw,27px);
  letter-spacing:.14em;
  line-height:1;
  transition:color var(--t-fast) var(--ease);
}
.brand-mark:hover .brand-mark__glyph{color:var(--lime)}
.brand-mark__latin{
  display:block;
  margin-top:5px;
  font-family:var(--font-mono);
  font-size:9.5px;
  letter-spacing:.3em;
  color:var(--lime);
  opacity:.86;
}
.brand-status{
  display:flex;
  align-items:center;
  gap:6px;
  font-size:11px;
  line-height:1.4;
  letter-spacing:.06em;
  color:var(--muted);
  min-width:0;
}
.brand-status>span:last-child{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.status-dot{
  flex:none;
  width:5px;
  height:5px;
  border-radius:50%;
  background:var(--lime);
  box-shadow:0 0 0 3px rgba(200,247,81,.16);
}
.rail-index{
  font-family:var(--font-mono);
  font-size:10px;
  letter-spacing:.26em;
  color:var(--muted);
  opacity:.72;
}
.rail-index__num{color:var(--amber)}

.topbar{
  display:flex;
  align-items:center;
  justify-content:flex-end;
  gap:20px;
  padding:0 0 0 24px;
  min-width:0;
}

.site-nav{min-width:0}
.nav-list{display:flex;align-items:center;gap:0;flex-wrap:nowrap}
.nav-link{
  position:relative;
  display:block;
  padding:14px 11px;
  font-size:13.5px;
  letter-spacing:.04em;
  color:var(--muted);
  text-decoration:none;
  white-space:nowrap;
  border-radius:2px;
  transition:color var(--t-fast) var(--ease);
}
.nav-link::after{
  content:"";
  position:absolute;
  left:11px;
  right:11px;
  bottom:6px;
  height:2px;
  background:var(--lime);
  transform:scaleX(0);
  transform-origin:left center;
  transition:transform var(--t-base) var(--ease);
}
.nav-link__i{
  display:inline-block;
  margin-right:5px;
  font-family:var(--font-mono);
  font-size:9.5px;
  letter-spacing:.1em;
  color:var(--panel-hi);
  transition:color var(--t-fast) var(--ease);
}
.nav-link:hover,.nav-link:focus-visible{color:var(--text)}
.nav-link:hover .nav-link__i,.nav-link:focus-visible .nav-link__i{color:var(--amber)}
.nav-link:hover::after,.nav-link:focus-visible::after{transform:scaleX(1)}
.nav-link[aria-current="page"]{color:var(--lime)}
.nav-link[aria-current="page"]::after{transform:scaleX(1)}
.nav-link[aria-current="page"] .nav-link__i{color:var(--lime)}

.header-utility{
  display:flex;
  align-items:center;
  gap:8px;
  padding-left:18px;
  border-left:1px solid var(--line);
}
.util-link{
  display:inline-block;
  padding:8px 12px;
  border:1px solid var(--line);
  border-radius:2px;
  font-size:12.5px;
  letter-spacing:.06em;
  color:var(--text);
  text-decoration:none;
  white-space:nowrap;
  transition:border-color var(--t-fast) var(--ease),color var(--t-fast) var(--ease),background-color var(--t-fast) var(--ease);
}
.util-link:hover,.util-link:focus-visible{border-color:var(--lime);color:var(--lime);background:rgba(200,247,81,.06)}
.util-link--accent{border-color:rgba(242,163,60,.45);color:var(--amber)}
.util-link--accent:hover,.util-link--accent:focus-visible{border-color:var(--amber);color:var(--amber);background:rgba(242,163,60,.08)}

.nav-toggle{
  display:none;
  align-items:center;
  gap:9px;
  padding:9px 12px;
  border:1px solid var(--line);
  border-radius:2px;
  color:var(--text);
  font-size:12px;
  letter-spacing:.16em;
  transition:border-color var(--t-fast) var(--ease),color var(--t-fast) var(--ease);
}
.nav-toggle:hover{border-color:var(--lime);color:var(--lime)}
.nav-toggle__bars{display:grid;gap:3px;width:15px}
.nav-toggle__bars i{
  display:block;
  height:1.5px;
  background:currentColor;
  transition:transform var(--t-base) var(--ease),opacity var(--t-fast) var(--ease);
}
.nav-toggle.is-open .nav-toggle__bars i:nth-child(1){transform:translateY(4.5px) rotate(45deg)}
.nav-toggle.is-open .nav-toggle__bars i:nth-child(2){opacity:0}
.nav-toggle.is-open .nav-toggle__bars i:nth-child(3){transform:translateY(-4.5px) rotate(-45deg)}

/* ---------- footer ---------- */
.site-footer{
  margin-top:clamp(48px,7vw,96px);
  border-top:1px solid var(--line);
  background:linear-gradient(180deg,var(--deep),var(--ink) 72%);
}
.footer-shell{
  display:grid;
  grid-template-columns:minmax(0,1.55fr) minmax(0,1fr) minmax(0,1.35fr) minmax(0,1fr);
  gap:clamp(24px,3.2vw,52px);
  max-width:var(--shell-max);
  margin:0 auto;
  padding:clamp(36px,5vw,64px) var(--gutter) clamp(22px,3vw,34px);
  border-bottom:1px solid var(--line);
}
.footer-brand{min-width:0}
.footer-wordmark{
  font-family:var(--font-display);
  font-weight:700;
  font-size:clamp(28px,3.4vw,40px);
  line-height:1;
  letter-spacing:.1em;
  color:var(--text);
}
.footer-line{
  margin-top:10px;
  font-family:var(--font-mono);
  font-size:11.5px;
  letter-spacing:.16em;
  color:var(--amber);
}
.footer-note{
  margin-top:14px;
  max-width:34em;
  font-size:14px;
  line-height:1.8;
  color:var(--muted);
}
.footer-stamp{
  margin-top:16px;
  padding-top:12px;
  border-top:1px dashed var(--line);
  font-size:11px;
  letter-spacing:.08em;
  color:var(--muted);
}
.footer-col{min-width:0}
.footer-title{
  margin-bottom:14px;
  font-family:var(--font-mono);
  font-size:11px;
  font-weight:700;
  letter-spacing:.22em;
  text-transform:uppercase;
  color:var(--lime);
}
.footer-list{display:grid;gap:2px}
.footer-link{
  display:inline-block;
  padding:5px 0;
  font-size:14px;
  color:var(--muted);
  text-decoration:none;
  transition:color var(--t-fast) var(--ease),transform var(--t-base) var(--ease);
}
.footer-link:hover,.footer-link:focus-visible{color:var(--lime);transform:translateX(3px)}
.contact-list{display:grid;gap:9px;margin-top:16px}
.contact-row{display:grid;grid-template-columns:66px minmax(0,1fr);gap:10px;align-items:baseline}
.contact-row dt{
  font-size:10.5px;
  letter-spacing:.12em;
  color:var(--muted);
  opacity:.8;
}
.contact-row dd{
  font-size:13px;
  color:var(--text);
  overflow-wrap:anywhere;
  line-height:1.6;
}
.footer-fine{
  margin-top:14px;
  padding-top:10px;
  border-top:1px solid var(--line);
  font-size:11.5px;
  line-height:1.7;
  color:var(--muted);
}
.footer-icp{
  margin-top:16px;
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.08em;
  color:var(--muted);
}
.footer-base{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px 26px;
  max-width:var(--shell-max);
  margin:0 auto;
  padding:18px var(--gutter) 34px;
  font-size:12px;
  letter-spacing:.05em;
  color:var(--muted);
}
.footer-base p{margin:0}
.footer-base p:last-child{margin-left:auto}
.footer-domain{font-family:var(--font-mono);letter-spacing:.1em}

/* ---------- generic components ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  gap:10px;
  padding:13px 22px;
  border:1px solid var(--lime);
  border-radius:2px;
  background:var(--lime);
  color:#0B0F0E;
  font-size:14px;
  font-weight:600;
  letter-spacing:.06em;
  text-decoration:none;
  transition:background-color var(--t-base) var(--ease),border-color var(--t-base) var(--ease),color var(--t-base) var(--ease),transform var(--t-base) var(--ease);
}
.btn:hover,.btn:focus-visible{background:#d8ff6a;border-color:#d8ff6a}
.btn--ghost{background:transparent;border-color:var(--panel-hi);color:var(--text)}
.btn--ghost:hover,.btn--ghost:focus-visible{border-color:var(--lime);color:var(--lime);background:rgba(200,247,81,.06)}
.btn--amber{background:var(--amber);border-color:var(--amber)}
.btn--amber:hover,.btn--amber:focus-visible{background:#ffb954;border-color:#ffb954}

.crumbs{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  padding:18px 0;
  font-size:12px;
  letter-spacing:.08em;
  color:var(--muted);
}
.crumbs li{display:flex;align-items:center;gap:8px}
.crumbs li+li::before{content:"/";color:var(--panel-hi)}
.crumbs a{color:var(--muted);text-decoration:none;transition:color var(--t-fast) var(--ease)}
.crumbs a:hover,.crumbs a:focus-visible{color:var(--lime)}
.crumbs [aria-current="page"]{color:var(--text)}

.grid{display:grid;gap:clamp(16px,2vw,28px)}
.grid-12{display:grid;grid-template-columns:repeat(12,minmax(0,1fr));gap:clamp(16px,2vw,28px)}
.grid-3{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:clamp(16px,2vw,28px)}

.panel{
  position:relative;
  padding:clamp(16px,2vw,26px);
  border:1px solid var(--line);
  border-radius:4px;
  background:linear-gradient(180deg,var(--panel),rgba(20,48,41,.72));
}
.panel--interactive{
  transition:border-color var(--t-base) var(--ease),transform var(--t-base) var(--ease),background-color var(--t-base) var(--ease);
}
.panel--interactive:hover,.panel--interactive:focus-within{
  border-color:rgba(200,247,81,.55);
  transform:translateX(4px);
}

.tag{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:3px 8px;
  border:1px solid rgba(200,247,81,.35);
  border-radius:2px;
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.14em;
  text-transform:uppercase;
  color:var(--lime);
  line-height:1.5;
}
.tag--amber{color:var(--amber);border-color:rgba(242,163,60,.42)}
.tag--mute{color:var(--muted);border-color:var(--line)}
.tag--alert{color:var(--red);border-color:rgba(229,72,77,.5)}

.media-frame{
  position:relative;
  display:block;
  overflow:hidden;
  border:1px solid var(--line);
  border-radius:4px;
  background-color:var(--panel);
  background-image:linear-gradient(135deg,rgba(29,64,55,.9),rgba(14,33,28,.95));
}
.media-frame img{width:100%;height:100%;object-fit:cover}
.media-frame::after{
  content:"";
  position:absolute;
  inset:0;
  pointer-events:none;
  background:linear-gradient(180deg,rgba(11,15,14,0) 42%,rgba(11,15,14,.58));
}
.media-frame figcaption{
  position:absolute;
  left:12px;
  right:12px;
  bottom:10px;
  z-index:1;
  font-size:11.5px;
  letter-spacing:.06em;
  color:var(--muted);
}
.media-frame--wide{aspect-ratio:16/9}
.media-frame--tall{aspect-ratio:3/4}
.media-frame--square{aspect-ratio:1/1}
.media-frame--band{aspect-ratio:21/9}
.media-frame--empty{
  background-image:repeating-linear-gradient(135deg,rgba(35,58,51,.85) 0 1px,transparent 1px 11px);
}

/* ---------- motion ---------- */
html.js [data-reveal]{
  opacity:0;
  transform:translateY(10px);
  transition:opacity .42s var(--ease),transform .42s var(--ease);
}
html.js [data-reveal="in"]{opacity:1;transform:none}

/* ---------- responsive: header & footer ---------- */
@media (max-width:1079px){
  :root{--rail-w:auto}
  .header-shell{
    grid-template-columns:minmax(0,1fr) auto;
    grid-template-rows:auto auto auto;
    padding-left:0;
    padding-right:0;
  }
  .brand-rail{
    grid-column:1;
    grid-row:1;
    padding:12px 14px 12px 18px;
    border-right:0;
  }
  .brand-rail::before{
    top:0;
    bottom:auto;
    width:100%;
    height:2px;
    background:linear-gradient(90deg,var(--lime),var(--lime-dim) 38%,rgba(200,247,81,0));
  }
  .rail-index{display:none}
  .brand-status{font-size:10px}
  .topbar{display:contents}
  .nav-toggle{
    display:inline-flex;
    grid-column:2;
    grid-row:1;
    align-self:center;
    margin-right:14px;
  }
  .site-nav{
    display:none;
    grid-column:1/-1;
    grid-row:2;
    background:var(--deep);
    border-top:1px solid var(--line);
  }
  .site-nav[data-open]{display:block}
  .nav-list{flex-direction:column;align-items:stretch;gap:0;padding:6px 0}
  .nav-link{
    padding:13px 20px;
    border-bottom:1px solid rgba(35,58,51,.75);
    border-radius:0;
    font-size:15px;
  }
  .nav-link::after{display:none}
  .nav-link__i{margin-right:10px;font-size:10.5px;color:var(--lime-dim)}
  .nav-link[aria-current="page"]{box-shadow:inset 3px 0 0 var(--lime);background:rgba(29,64,55,.45)}
  .header-utility{
    display:none;
    grid-column:1/-1;
    grid-row:3;
    gap:8px;
    padding:12px 16px 16px;
    border-left:0;
    background:var(--deep);
  }
  .site-nav[data-open]~.header-utility{display:flex}
  .util-link{flex:1 1 auto;text-align:center}

  .footer-shell{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media (max-width:600px){
  .footer-shell{grid-template-columns:1fr}
  .footer-base p:last-child{margin-left:0}
  .contact-row{grid-template-columns:1fr;gap:2px}
}
@media (min-width:1080px){
  .nav-toggle{display:none}
}

/* ---------- reduced motion ---------- */
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{
    animation-duration:.001ms!important;
    animation-iteration-count:1!important;
    transition-duration:.001ms!important;
  }
  .panel--interactive:hover,.footer-link:hover,.footer-link:focus-visible{transform:none}
  html.js [data-reveal]{opacity:1;transform:none;transition:none}
  .skip-link{transition:none}
}