*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body,h1,h2,h3,h4,p,ul,ol,figure{margin:0}
ul,ol{padding:0;list-style:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
a{color:inherit;text-decoration:none}
img,svg{display:block;max-width:100%}

:root{
  --ink:#061A13;
  --ink-2:#0B2A20;
  --panel:#103A2B;
  --pulse:#39F5C8;
  --signal:#FF6B2C;
  --sand:#D9B46A;
  --paper:#EDF7F2;
  --muted:#A8C3B8;
  --line:#2A5A47;
  --focus:#9BFFE8;
  --rail-w:272px;
  --topbar-h:64px;
  --pad:clamp(16px,4vw,40px);
  --font-display:"Barlow Condensed","Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
  --font-body:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  --font-mono:"IBM Plex Mono","DIN Alternate",ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  --ease:cubic-bezier(.22,.61,.36,1);
}

body{
  background-color:var(--ink);
  background-image:
    radial-gradient(120% 70% at 100% 0%,rgba(57,245,200,.08),transparent 62%),
    radial-gradient(90% 60% at 0% 100%,rgba(255,107,44,.06),transparent 58%),
    repeating-linear-gradient(90deg,rgba(42,90,71,.22) 0 1px,transparent 1px 104px);
  background-attachment:fixed;
  color:var(--paper);
  font-family:var(--font-body);
  font-size:16px;
  line-height:1.75;
  min-height:100vh;
  padding-top:var(--topbar-h);
  -webkit-font-smoothing:antialiased;
}

::selection{background:var(--pulse);color:#04241B}

:focus-visible{outline:2px solid var(--focus);outline-offset:3px}

.skip-link{
  position:fixed;
  left:12px;
  top:-80px;
  z-index:200;
  padding:10px 18px;
  background:var(--pulse);
  color:#04241B;
  font-family:var(--font-mono);
  font-size:13px;
  font-weight:700;
  letter-spacing:.08em;
  clip-path:polygon(10px 0,100% 0,100% calc(100% - 10px),calc(100% - 10px) 100%,0 100%,0 10px);
  transition:top .18s var(--ease);
}
.skip-link:focus{top:10px}

.read-progress{
  position:fixed;
  top:0;left:0;right:0;
  height:3px;
  background:rgba(42,90,71,.55);
  z-index:120;
  pointer-events:none;
}
.read-progress__bar{
  display:block;
  height:100%;
  width:0;
  background:linear-gradient(90deg,var(--pulse) 0%,var(--focus) 72%,var(--signal) 100%);
  transition:width .16s linear;
}

/* ---------- header / side rail ---------- */
.site-header{
  position:fixed;
  top:0;left:0;right:0;
  height:var(--topbar-h);
  background:rgba(6,26,19,.94);
  border-bottom:1px solid var(--line);
  backdrop-filter:blur(10px);
  z-index:100;
}
.rail{
  display:flex;
  align-items:center;
  justify-content:space-between;
  height:100%;
  padding-inline:var(--pad);
}
.rail__top{
  display:flex;
  align-items:center;
  justify-content:space-between;
  width:100%;
  gap:16px;
}

.brand{display:flex;flex-direction:column;gap:2px;line-height:1.1}
.brand__mark{
  font-family:var(--font-mono);
  font-size:10.5px;
  letter-spacing:.2em;
  color:var(--pulse);
  text-transform:uppercase;
}
.brand__name{
  font-family:var(--font-display);
  font-weight:900;
  font-size:21px;
  letter-spacing:.02em;
  color:var(--paper);
}
.brand__tag{display:none}

.nav-toggle{
  display:inline-flex;
  align-items:center;
  gap:9px;
  padding:9px 13px;
  border:1px solid var(--line);
  color:var(--paper);
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.14em;
  clip-path:polygon(9px 0,100% 0,100% calc(100% - 9px),calc(100% - 9px) 100%,0 100%,0 9px);
  transition:border-color .16s,color .16s,background .16s;
}
.nav-toggle:hover{border-color:var(--pulse);color:var(--pulse)}
.nav-toggle[aria-expanded="true"]{background:rgba(57,245,200,.12);border-color:var(--pulse);color:var(--pulse)}
.nav-toggle__lines{display:grid;gap:4px;width:18px}
.nav-toggle__bar{display:block;height:2px;background:currentColor;transition:transform .2s var(--ease),opacity .2s var(--ease)}
.nav-toggle[aria-expanded="true"] .nav-toggle__bar:nth-child(1){transform:translateY(6px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] .nav-toggle__bar:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] .nav-toggle__bar:nth-child(3){transform:translateY(-6px) rotate(-45deg)}
.nav-toggle__text{white-space:nowrap}

.site-nav{
  position:fixed;
  top:var(--topbar-h);
  left:0;
  bottom:0;
  width:min(86vw,344px);
  display:flex;
  flex-direction:column;
  gap:18px;
  padding:22px 20px 28px;
  background:linear-gradient(180deg,#0B2A20 0%,#061A13 100%);
  border-right:1px solid var(--line);
  overflow-y:auto;
  transform:translateX(-102%);
  visibility:hidden;
  transition:transform .22s var(--ease),visibility 0s linear .22s;
  z-index:99;
}
.site-header[data-open] .site-nav{
  transform:translateX(0);
  visibility:visible;
  transition:transform .22s var(--ease),visibility 0s linear 0s;
}

.site-nav__eyebrow{
  display:flex;
  align-items:center;
  justify-content:space-between;
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.2em;
  color:var(--muted);
  text-transform:uppercase;
}
.site-nav__count{color:var(--sand)}
.site-nav__list{display:grid;gap:0}

.site-nav__link{
  position:relative;
  display:flex;
  align-items:baseline;
  gap:12px;
  padding:12px 10px 12px 14px;
  border-bottom:1px solid rgba(42,90,71,.6);
  font-family:var(--font-display);
  font-weight:800;
  font-size:18px;
  letter-spacing:.04em;
  color:var(--paper);
  transition:color .16s,background .16s,padding-left .16s;
}
.site-nav__num{
  font-family:var(--font-mono);
  font-size:11px;
  font-weight:400;
  letter-spacing:.1em;
  color:var(--muted);
}
.site-nav__link:hover,.site-nav__link:focus-visible{
  color:var(--pulse);
  background:rgba(57,245,200,.07);
  padding-left:18px;
}
.site-nav__link[aria-current="page"]{color:var(--pulse)}
.site-nav__link[aria-current="page"]::before{
  content:"";
  position:absolute;
  left:0;top:9px;bottom:9px;
  width:3px;
  background:var(--signal);
}
.site-nav__link[aria-current="page"] .site-nav__num{color:var(--signal)}

.rail__foot{
  display:grid;
  gap:10px;
  margin-top:auto;
  padding-top:18px;
  border-top:1px solid var(--line);
}
.rail__label{
  font-family:var(--font-mono);
  font-size:10.5px;
  letter-spacing:.2em;
  color:var(--sand);
  text-transform:uppercase;
}
.quick-link{
  display:flex;
  align-items:center;
  gap:9px;
  padding:11px 14px;
  border:1px solid var(--line);
  font-family:var(--font-display);
  font-size:15px;
  font-weight:700;
  letter-spacing:.06em;
  color:var(--paper);
  clip-path:polygon(10px 0,100% 0,100% calc(100% - 10px),calc(100% - 10px) 100%,0 100%,0 10px);
  transition:background .16s,color .16s,border-color .16s;
}
.quick-link--pulse{background:rgba(57,245,200,.1);border-color:rgba(57,245,200,.45);color:var(--pulse)}
.quick-link--pulse:hover{background:var(--pulse);border-color:var(--pulse);color:#04241B}
.quick-link--ghost{color:var(--paper)}
.quick-link--ghost:hover{border-color:var(--pulse);color:var(--pulse)}
.quick-link__dot{
  width:7px;height:7px;
  border-radius:50%;
  background:var(--signal);
  box-shadow:0 0 0 0 rgba(255,107,44,.55);
  animation:pulseDot 2.6s var(--ease) infinite;
}
@keyframes pulseDot{
  0%{box-shadow:0 0 0 0 rgba(255,107,44,.55)}
  70%{box-shadow:0 0 0 8px rgba(255,107,44,0)}
  100%{box-shadow:0 0 0 0 rgba(255,107,44,0)}
}
.quick-link--pulse:hover .quick-link__dot{background:#04241B;animation:none}

.rail__readout{
  display:flex;
  align-items:baseline;
  justify-content:space-between;
  gap:10px;
  padding:9px 10px;
  border-left:2px solid var(--signal);
  background:rgba(16,58,43,.55);
}
.rail__readout-label{
  font-family:var(--font-mono);
  font-size:10px;
  letter-spacing:.16em;
  color:var(--muted);
}
.rail__readout-value{
  font-family:var(--font-mono);
  font-size:12.5px;
  letter-spacing:.04em;
  color:var(--pulse);
  text-align:right;
  overflow:hidden;
  text-overflow:ellipsis;
  white-space:nowrap;
  max-width:60%;
}
.rail__coord{
  font-family:var(--font-mono);
  font-size:10px;
  letter-spacing:.1em;
  color:var(--muted);
  opacity:.75;
}

.nav-scrim{
  position:fixed;
  top:var(--topbar-h);left:0;right:0;bottom:0;
  width:100%;
  background:rgba(4,16,12,.74);
  border:0;
  opacity:0;
  visibility:hidden;
  transition:opacity .22s var(--ease),visibility 0s linear .22s;
  z-index:98;
}
.site-header[data-open] .nav-scrim{
  opacity:1;
  visibility:visible;
  transition:opacity .22s var(--ease),visibility 0s linear 0s;
}

/* ---------- footer ---------- */
.site-footer{
  position:relative;
  margin-top:clamp(56px,9vw,112px);
  padding:clamp(44px,6vw,76px) 0 26px;
  background:linear-gradient(180deg,#08211A 0%,#061A13 58%);
  border-top:1px solid var(--line);
}
.site-footer::before{
  content:"";
  position:absolute;
  top:0;left:0;
  width:min(280px,42%);
  height:3px;
  background:linear-gradient(90deg,var(--signal),rgba(255,107,44,0));
}
.footer__inner{
  width:min(1180px,calc(100% - var(--pad) * 2));
  margin-inline:auto;
  display:grid;
  gap:clamp(28px,4vw,56px);
  grid-template-columns:1fr;
}
.footer__mark{
  font-family:var(--font-mono);
  font-size:10.5px;
  letter-spacing:.22em;
  color:var(--pulse);
  text-transform:uppercase;
}
.footer__name{
  margin-top:6px;
  font-family:var(--font-display);
  font-weight:900;
  font-size:clamp(1.6rem,3vw,2.1rem);
  line-height:1.05;
  letter-spacing:.02em;
}
.footer__summary{
  margin-top:12px;
  max-width:34ch;
  font-size:14.5px;
  line-height:1.8;
  color:var(--muted);
}
.footer__coords{
  margin-top:18px;
  padding-top:12px;
  border-top:1px solid rgba(42,90,71,.7);
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.1em;
  color:var(--sand);
}
.footer__cols{
  display:grid;
  gap:clamp(22px,3vw,32px);
  grid-template-columns:repeat(auto-fit,minmax(160px,1fr));
}
.footer__col-title{
  display:flex;
  align-items:center;
  gap:8px;
  font-family:var(--font-mono);
  font-weight:700;
  font-size:11px;
  letter-spacing:.2em;
  text-transform:uppercase;
  color:var(--sand);
}
.footer__col-title::before{
  content:"";
  width:14px;height:1px;
  background:var(--sand);
}
.footer__list{margin-top:14px;display:grid;gap:9px}
.footer__link{
  font-size:15px;
  color:var(--paper);
  border-bottom:1px solid transparent;
  transition:color .16s,border-color .16s;
}
.footer__link:hover{color:var(--pulse);border-bottom-color:var(--pulse)}
.footer__col--contact .footer__contact{margin-top:14px;display:grid;gap:0}
.footer__contact-row{
  display:grid;
  grid-template-columns:44px minmax(0,1fr);
  gap:10px;
  align-items:baseline;
  padding:8px 0;
  border-bottom:1px dashed rgba(42,90,71,.7);
}
.footer__contact-key{
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.12em;
  color:var(--muted);
}
.footer__contact-val{
  font-family:var(--font-mono);
  font-size:13px;
  letter-spacing:.01em;
  color:var(--paper);
  overflow-wrap:anywhere;
  transition:color .16s;
}
a.footer__contact-val:hover{color:var(--pulse)}
.footer__note{
  margin-top:14px;
  font-size:12.5px;
  line-height:1.75;
  color:var(--muted);
}
.footer__base{
  width:min(1180px,calc(100% - var(--pad) * 2));
  margin:clamp(28px,4vw,48px) auto 0;
  padding-top:18px;
  border-top:1px solid var(--line);
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:12px 22px;
  font-size:12.5px;
  color:var(--muted);
}
.footer__copyright{margin:0}
.footer__legal{display:flex;flex-wrap:wrap;gap:8px 18px}
.footer__legal-link{
  font-family:var(--font-mono);
  font-size:11.5px;
  letter-spacing:.08em;
  color:var(--muted);
  transition:color .16s;
}
.footer__legal-link:hover{color:var(--pulse)}
.footer__icp{
  font-family:var(--font-mono);
  font-size:11.5px;
  letter-spacing:.06em;
  color:var(--muted);
}
.to-top{
  margin-left:auto;
  padding:8px 14px;
  border:1px solid var(--line);
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.14em;
  color:var(--paper);
  clip-path:polygon(8px 0,100% 0,100% calc(100% - 8px),calc(100% - 8px) 100%,0 100%,0 8px);
  transition:background .16s,color .16s,border-color .16s;
}
.to-top:hover{background:var(--pulse);border-color:var(--pulse);color:#04241B}

/* ---------- shared page components ---------- */
.wrap{
  width:min(1180px,calc(100% - var(--pad) * 2));
  margin-inline:auto;
}
.section{padding-block:clamp(32px,5vw,68px);scroll-margin-top:96px}
[data-section]{scroll-margin-top:96px}

h1,h2,h3,h4{font-family:var(--font-display);line-height:1.06;letter-spacing:.01em;font-weight:800}
h1{font-size:clamp(2.6rem,6vw,5.5rem);font-weight:900;line-height:.98}
h2{font-size:clamp(2rem,4vw,3.2rem)}
h3{font-size:1.5rem;line-height:1.22}

.display{
  font-family:var(--font-display);
  font-weight:900;
  font-size:clamp(2.6rem,6vw,5.5rem);
  line-height:.98;
  letter-spacing:.01em;
}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:9px;
  font-family:var(--font-mono);
  font-size:11.5px;
  letter-spacing:.2em;
  text-transform:uppercase;
  color:var(--sand);
}
.eyebrow::before{content:"";width:18px;height:1px;background:var(--sand)}
.kicker{
  font-family:var(--font-display);
  font-weight:800;
  font-size:14px;
  letter-spacing:.14em;
  color:var(--pulse);
}
.lede{
  font-size:clamp(1.02rem,1.6vw,1.2rem);
  line-height:1.85;
  color:var(--paper);
  opacity:.88;
  max-width:62ch;
}
.note{
  font-size:13.5px;
  line-height:1.75;
  color:var(--muted);
}

.breadcrumb{margin-bottom:clamp(18px,3vw,28px)}
.breadcrumb__list{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  font-family:var(--font-mono);
  font-size:11.5px;
  letter-spacing:.08em;
  color:var(--muted);
}
.breadcrumb__item{display:inline-flex;align-items:center;gap:8px}
.breadcrumb__item + .breadcrumb__item::before{content:"/";color:var(--line)}
.breadcrumb__link{color:var(--muted);transition:color .16s}
.breadcrumb__link:hover{color:var(--pulse)}
.breadcrumb__current{color:var(--pulse)}

.btn{
  --btn-bg:transparent;
  --btn-fg:var(--paper);
  --btn-bd:var(--line);
  display:inline-flex;
  align-items:center;
  gap:10px;
  padding:12px 22px;
  background:var(--btn-bg);
  color:var(--btn-fg);
  border:1px solid var(--btn-bd);
  font-family:var(--font-display);
  font-weight:700;
  font-size:15px;
  letter-spacing:.06em;
  clip-path:polygon(12px 0,100% 0,100% calc(100% - 12px),calc(100% - 12px) 100%,0 100%,0 12px);
  transition:background .16s,color .16s,border-color .16s,transform .16s var(--ease);
}
.btn:hover{transform:translateX(2px)}
.btn--signal{--btn-bg:var(--signal);--btn-fg:#1A0700;--btn-bd:var(--signal)}
.btn--signal:hover{--btn-bg:#FF8347}
.btn--pulse{--btn-bg:var(--pulse);--btn-fg:#04241B;--btn-bd:var(--pulse)}
.btn--pulse:hover{--btn-bg:var(--focus)}
.btn--ghost:hover{--btn-bd:var(--pulse);--btn-fg:var(--pulse)}

.tag{
  display:inline-flex;
  align-items:center;
  padding:3px 9px;
  background:var(--pulse);
  color:#04241B;
  font-family:var(--font-mono);
  font-size:10.5px;
  font-weight:700;
  letter-spacing:.14em;
  clip-path:polygon(6px 0,100% 0,100% calc(100% - 6px),calc(100% - 6px) 100%,0 100%,0 6px);
}
.tag--sand{background:var(--sand);color:#22160A}
.tag--signal{background:var(--signal);color:#1A0700}

.cut-panel{
  position:relative;
  padding:clamp(18px,3vw,28px);
  background:var(--panel);
  border:1px solid var(--line);
  clip-path:polygon(0 0,calc(100% - 18px) 0,100% 18px,100% 100%,18px 100%,0 calc(100% - 18px));
  transition:border-color .18s var(--ease),background .18s var(--ease);
}
.cut-panel:hover{border-color:rgba(57,245,200,.5);background:#12452F}
.cut-panel__head{
  display:flex;
  flex-wrap:wrap;
  align-items:baseline;
  justify-content:space-between;
  gap:10px;
  padding-bottom:12px;
  margin-bottom:14px;
  border-bottom:1px dashed rgba(42,90,71,.8);
}

.signal-rule{
  position:relative;
  height:1px;
  margin:clamp(26px,4vw,48px) 0;
  background:var(--line);
}
.signal-rule::after{
  content:"";
  position:absolute;
  left:0;top:-1px;
  width:min(180px,32%);
  height:3px;
  background:linear-gradient(90deg,var(--pulse),rgba(57,245,200,0));
}

.grid{display:grid;gap:clamp(20px,3vw,36px)}
.grid--split{grid-template-columns:minmax(0,1fr)}
@media (min-width:900px){
  .grid--split{grid-template-columns:minmax(0,3fr) minmax(0,9fr)}
}
.col-note{
  display:grid;
  align-content:start;
  gap:12px;
  padding-top:6px;
  border-top:2px solid var(--signal);
}
.col-main{display:grid;gap:clamp(16px,2.4vw,26px);align-content:start;min-width:0}

.stat{display:grid;gap:2px}
.stat__value{
  font-family:var(--font-mono);
  font-weight:700;
  font-size:clamp(1.8rem,4vw,2.6rem);
  line-height:1;
  letter-spacing:.04em;
  color:var(--pulse);
  font-variant-numeric:tabular-nums;
}
.stat__label{
  font-family:var(--font-mono);
  font-size:10.5px;
  letter-spacing:.16em;
  text-transform:uppercase;
  color:var(--muted);
}

.index-list{display:grid;border-top:1px solid var(--line)}
.index-list__item{
  display:grid;
  grid-template-columns:auto minmax(0,1fr) auto;
  gap:14px;
  align-items:baseline;
  padding:14px 0;
  border-bottom:1px solid rgba(42,90,71,.55);
  transition:background .16s;
}
.index-list__item:hover{background:rgba(57,245,200,.05)}
.index-list__num{
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.1em;
  color:var(--sand);
}
.index-list__title{font-family:var(--font-display);font-weight:800;font-size:1.05rem;letter-spacing:.02em}
.index-list__meta{
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.08em;
  color:var(--muted);
  white-space:nowrap;
}

.media{
  position:relative;
  overflow:hidden;
  background:var(--panel);
  clip-path:polygon(0 0,calc(100% - 22px) 0,100% 22px,100% 100%,0 100%);
}
.media__img{
  width:100%;
  height:100%;
  object-fit:cover;
  filter:saturate(.94) contrast(1.04);
}
.media--wide{aspect-ratio:16/9}
.media--tall{aspect-ratio:3/4}
.media--square{aspect-ratio:1/1}
.media::after{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(180deg,rgba(6,26,19,0) 52%,rgba(6,26,19,.55) 100%);
  pointer-events:none;
}
.media__caption{
  margin-top:8px;
  font-size:12.5px;
  letter-spacing:.02em;
  color:var(--muted);
}

[data-reveal]{
  opacity:0;
  transform:translateY(14px);
  transition:opacity .5s var(--ease),transform .5s var(--ease);
}
[data-reveal].is-revealed{opacity:1;transform:none}

/* ---------- desktop rail ---------- */
@media (min-width:1024px){
  body{
    padding-top:0;
    padding-left:var(--rail-w);
  }
  .site-header{
    right:auto;
    bottom:0;
    height:100vh;
    width:var(--rail-w);
    border-bottom:0;
    border-right:1px solid var(--line);
    background:linear-gradient(180deg,#0B2A20 0%,#08201A 62%,#061A13 100%);
    backdrop-filter:none;
  }
  .site-header::before{
    content:"";
    position:absolute;
    left:0;top:0;
    width:4px;height:110px;
    background:linear-gradient(180deg,var(--pulse),rgba(57,245,200,0));
  }
  .read-progress{left:var(--rail-w)}
  .rail{
    flex-direction:column;
    align-items:stretch;
    justify-content:flex-start;
    gap:26px;
    height:100%;
    padding:30px 22px 22px;
    overflow-y:auto;
  }
  .rail__top{flex-direction:column;align-items:flex-start;gap:0;width:auto}
  .nav-toggle{display:none}
  .brand__tag{
    display:block;
    margin-top:9px;
    font-size:11.5px;
    letter-spacing:.08em;
    color:var(--muted);
  }
  .site-nav,
  .site-header[data-open] .site-nav{
    position:static;
    transform:none;
    visibility:visible;
    width:auto;
    flex:1;
    display:flex;
    flex-direction:column;
    gap:18px;
    padding:0;
    background:none;
    border:0;
    overflow:visible;
    transition:none;
  }
  .site-nav__link{
    padding:9px 8px 9px 14px;
    font-size:17px;
    border-bottom:1px solid rgba(42,90,71,.45);
  }
  .site-nav__link:hover,.site-nav__link:focus-visible{padding-left:18px}
  .rail__foot{margin-top:auto}
  .nav-scrim{display:none}
}

@media (min-width:900px){
  .footer__inner{grid-template-columns:minmax(0,1fr) minmax(0,1.5fr)}
}

@media (max-width:599px){
  .footer__base{gap:10px 16px;font-size:12px}
  .to-top{margin-left:0;width:100%;justify-content:center;text-align:center}
}

@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
    scroll-behavior:auto !important;
  }
  [data-reveal]{opacity:1;transform:none}
  .read-progress__bar{transition:none}
}