*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
:root{
  --color-primary-base:#0A1F44;
  --color-primary-elevated:#122A4A;
  --color-accent-neon:#39FF14;
  --color-accent-ember:#FF6B35;
  --color-accent-sky:#2D9CDB;
  --color-text-hi:#F5F7FA;
  --color-text-mid:#B0BEC5;
  --color-text-low:#6A7C94;
  --color-gradient-start:#0A1F44;
  --color-gradient-end:#1D3A6A;
  --color-overlay-veil:rgba(10,31,68,.7);
  --font-display:"Impact","Haettenschweiler","Arial Narrow Bold","Arial Black","PingFang SC","Microsoft YaHei",sans-serif;
  --font-body:"Noto Serif SC","Source Han Serif SC","Songti SC","STSong","SimSun",Georgia,serif;
  --font-data:"Roboto Mono","Consolas","SF Mono",monospace;
  --container-max:1200px;
  --header-height:72px;
  --radius-sm:2px;
  --radius-md:6px;
  --space-1:.25rem;
  --space-2:.5rem;
  --space-3:.75rem;
  --space-4:1rem;
  --space-5:1.5rem;
  --space-6:2rem;
  --space-7:3rem;
  --space-8:4rem;
  --space-9:6rem;
  --space-10:8rem;
  --ease:cubic-bezier(.22,.61,.36,1)
}
html{scroll-behavior:smooth;scroll-padding-top:calc(var(--header-height) + 12px)}
body{
  font-family:var(--font-body);
  font-size:1rem;
  line-height:1.8;
  color:var(--color-text-hi);
  background:var(--color-primary-base);
  min-height:100vh;
  overflow-x:hidden
}
h1,h2,h3,h4,h5,h6{
  font-family:var(--font-display);
  font-weight:400;
  line-height:1.1;
  letter-spacing:.02em;
  color:var(--color-text-hi)
}
h1{font-size:clamp(2.5rem,6vw,4rem)}
h2{font-size:clamp(2rem,4vw,3rem)}
h3{font-size:clamp(1.4rem,2.5vw,2rem)}
h4{font-size:1.2rem}
p{margin-bottom:1rem}
a{color:var(--color-accent-sky);text-decoration:none}
a:hover{text-decoration:underline}
strong{color:var(--color-accent-neon);font-weight:700}
em{color:var(--color-accent-ember);font-style:normal}
code,.data{font-family:var(--font-data);font-size:.9em}
img,svg,video{max-width:100%;height:auto;display:block}
ul,ol{padding-left:1.25rem}
::selection{background:var(--color-accent-neon);color:var(--color-primary-base)}
:focus-visible{outline:2px solid var(--color-accent-neon);outline-offset:2px;border-radius:2px}
.container{max-width:var(--container-max);margin-inline:auto;padding-inline:1rem}
.sr-only,.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{min-height:70vh}
.skip-link{
  position:fixed;
  top:-100%;
  left:1rem;
  z-index:1100;
  display:inline-block;
  padding:.625rem 1.25rem;
  background:var(--color-accent-neon);
  color:var(--color-primary-base);
  font-family:var(--font-data);
  font-size:.875rem;
  font-weight:700;
  border-radius:0 0 var(--radius-md) var(--radius-md);
  text-decoration:none;
  transition:top .2s var(--ease)
}
.skip-link:focus-visible{top:0;outline:2px solid var(--color-accent-ember);outline-offset:0}
.scroll-progress{
  position:fixed;
  top:0;left:0;right:0;
  height:3px;
  z-index:110;
  pointer-events:none
}
.scroll-progress::before{
  content:"";
  position:absolute;
  top:0;left:0;bottom:0;
  width:var(--progress,0%);
  background:linear-gradient(90deg,var(--color-accent-neon),var(--color-accent-sky),var(--color-accent-ember));
  transition:width .1s linear
}
.site-header{
  position:fixed;
  inset:0 0 auto 0;
  z-index:100;
  height:var(--header-height);
  background:transparent;
  transition:background .3s var(--ease),box-shadow .3s var(--ease)
}
.site-header[data-scrolled]{
  background:var(--color-overlay-veil);
  -webkit-backdrop-filter:blur(10px);
  backdrop-filter:blur(10px);
  box-shadow:0 1px 0 rgba(57,255,20,.25)
}
.header-row{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:1rem;
  height:100%
}
.brand{
  display:inline-flex;
  align-items:center;
  gap:.625rem;
  color:var(--color-text-hi);
  text-decoration:none;
  flex-shrink:0
}
.brand:hover{text-decoration:none}
.brand-mark{
  position:relative;
  display:inline-grid;
  place-items:center;
  width:32px;height:32px;
  border:2px solid var(--color-accent-neon);
  transform:rotate(45deg);
  flex-shrink:0;
  transition:transform .3s var(--ease)
}
.brand-mark>span{
  display:block;
  width:10px;height:10px;
  background:var(--color-accent-neon)
}
.brand-mark::after{
  content:"";
  position:absolute;
  width:6px;height:6px;
  background:var(--color-accent-ember);
  top:-3px;right:-3px
}
.brand:hover .brand-mark{transform:rotate(135deg)}
.brand-name{
  font-family:var(--font-display);
  font-size:1.4rem;
  letter-spacing:.04em;
  color:var(--color-text-hi);
  text-transform:uppercase;
  line-height:1
}
.site-nav{margin-inline-start:auto}
.nav-links{
  display:flex;
  align-items:center;
  gap:var(--space-5);
  list-style:none;
  padding:0
}
.nav-links a{
  position:relative;
  color:var(--color-text-hi);
  font-family:var(--font-body);
  font-size:.9375rem;
  text-decoration:none;
  padding-block:.5rem;
  letter-spacing:.03em;
  transition:color .2s
}
.nav-links a::after{
  content:"";
  position:absolute;
  left:0;right:100%;
  bottom:0;
  height:2px;
  background:var(--color-accent-neon);
  transition:right .25s var(--ease)
}
.nav-links a:hover::after,
.nav-links a[aria-current="page"]::after{right:0}
.nav-links a[aria-current="page"]{color:var(--color-accent-neon)}
.header-cta{flex-shrink:0}
.nav-toggle{
  display:none;
  flex-direction:column;
  justify-content:center;
  align-items:center;
  gap:5px;
  width:44px;height:44px;
  padding:8px;
  background:transparent;
  border:0;
  cursor:pointer;
  flex-shrink:0
}
.nav-toggle-bar{
  display:block;
  width:22px;height:2px;
  background:var(--color-text-hi);
  transition:transform .25s var(--ease),opacity .2s
}
.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(1){
  transform:translateY(7px) 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(-7px) rotate(-45deg)
}
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:.5rem;
  padding:.8125rem 1.875rem;
  font-family:var(--font-display);
  font-size:.8125rem;
  letter-spacing:.08em;
  text-transform:uppercase;
  text-decoration:none;
  line-height:1;
  border:0;
  background:transparent;
  color:var(--color-text-hi);
  cursor:pointer;
  white-space:nowrap;
  position:relative;
  transition:background .2s,color .2s,transform .2s var(--ease),box-shadow .2s
}
.btn:hover{text-decoration:none}
.btn-accent{
  background:var(--color-accent-neon);
  color:var(--color-primary-base);
  clip-path:polygon(10px 0,100% 0,calc(100% - 10px) 100%,0 100%)
}
.btn-accent:hover{
  background:#4dff33;
  transform:translateY(-2px);
  box-shadow:0 8px 24px rgba(57,255,20,.25)
}
.btn-outline{
  border:1px solid var(--color-accent-neon);
  color:var(--color-accent-neon);
  clip-path:polygon(10px 0,100% 0,calc(100% - 10px) 100%,0 100%)
}
.btn-outline:hover{
  background:rgba(57,255,20,.08);
  color:var(--color-accent-neon)
}
.btn-ember{
  background:var(--color-accent-ember);
  color:var(--color-primary-base);
  clip-path:polygon(10px 0,100% 0,calc(100% - 10px) 100%,0 100%)
}
.btn-ember:hover{
  background:#ff7f4d;
  transform:translateY(-2px);
  box-shadow:0 8px 24px rgba(255,107,53,.25)
}
.breadcrumb{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:.5rem;
  list-style:none;
  padding:0;
  margin:0 0 var(--space-6);
  font-family:var(--font-data);
  font-size:.8125rem
}
.breadcrumb li{display:flex;align-items:center;gap:.5rem}
.breadcrumb li+li::before{content:"/";color:var(--color-text-low)}
.breadcrumb a{color:var(--color-text-mid)}
.breadcrumb a:hover{color:var(--color-accent-sky);text-decoration:none}
.breadcrumb [aria-current="page"]{color:var(--color-accent-neon)}
.section{padding-block:var(--space-8);position:relative}
.section--tight{padding-block:var(--space-6)}
.section--more{padding-block:var(--space-10)}
.section-band{
  position:relative;
  padding-block:var(--space-9);
  background:linear-gradient(180deg,var(--color-gradient-start),var(--color-gradient-end));
  overflow:hidden
}
.section-band::after{
  content:"";
  position:absolute;
  top:0;left:0;
  width:100%;height:2px;
  background:linear-gradient(90deg,transparent,var(--color-accent-neon),transparent);
  opacity:.6
}
.section-band--dark{
  background:var(--color-primary-base)
}
.content{
  max-width:70ch;
  margin-inline:auto
}
.content--wide{max-width:100%}
.section-index{
  display:flex;
  align-items:baseline;
  gap:var(--space-2);
  font-family:var(--font-data);
  color:var(--color-accent-neon);
  font-size:.875rem;
  letter-spacing:.15em;
  text-transform:uppercase;
  margin-bottom:var(--space-4)
}
.section-index::after{
  content:"";
  flex:1;
  height:1px;
  background:linear-gradient(90deg,rgba(57,255,20,.4),transparent)
}
.card-grid{
  display:grid;
  grid-template-columns:repeat(12,1fr);
  gap:var(--space-5)
}
.card{
  grid-column:span 4;
  background:var(--color-primary-elevated);
  border:1px solid rgba(255,255,255,.06);
  border-radius:var(--radius-md);
  padding:var(--space-6);
  position:relative;
  overflow:hidden;
  transition:transform .3s var(--ease),border-color .3s,box-shadow .3s
}
.card::before{
  content:"";
  position:absolute;
  top:0;left:0;right:0;
  height:2px;
  background:linear-gradient(90deg,var(--color-accent-neon),var(--color-accent-sky));
  transform:scaleX(0);
  transform-origin:left;
  transition:transform .35s var(--ease)
}
.card:hover{
  transform:translateY(-4px);
  border-color:rgba(57,255,20,.3);
  box-shadow:0 12px 32px rgba(0,0,0,.35)
}
.card:hover::before{transform:scaleX(1)}
.card-title{
  font-size:1.25rem;
  margin-bottom:var(--space-2)
}
.card-text{
  color:var(--color-text-mid);
  font-size:.9375rem;
  margin-bottom:0
}
.card--wide{grid-column:span 8}
.card--narrow{grid-column:span 4}
.tag{
  display:inline-flex;
  align-items:center;
  gap:.25rem;
  padding:.25rem .6875rem;
  font-family:var(--font-data);
  font-size:.75rem;
  letter-spacing:.08em;
  text-transform:uppercase;
  background:rgba(57,255,20,.08);
  border:1px solid rgba(57,255,20,.25);
  color:var(--color-accent-neon);
  border-radius:var(--radius-sm)
}
.tag--ember{
  background:rgba(255,107,53,.08);
  border-color:rgba(255,107,53,.3);
  color:var(--color-accent-ember)
}
.tag--sky{
  background:rgba(45,156,219,.08);
  border-color:rgba(45,156,219,.3);
  color:var(--color-accent-sky)
}
.tag--solid{
  background:var(--color-accent-neon);
  border-color:var(--color-accent-neon);
  color:var(--color-primary-base)
}
.stat{
  font-family:var(--font-data);
  padding:var(--space-5);
  background:var(--color-primary-elevated);
  border-left:3px solid var(--color-accent-neon);
  border-radius:var(--radius-sm)
}
.stat__value{
  font-size:clamp(1.75rem,3vw,2.5rem);
  color:var(--color-accent-neon);
  line-height:1.1;
  margin-bottom:.25rem
}
.stat__label{
  color:var(--color-text-mid);
  font-size:.8125rem;
  letter-spacing:.06em;
  text-transform:uppercase
}
.stat--ember{border-left-color:var(--color-accent-ember)}
.stat--ember .stat__value{color:var(--color-accent-ember)}
.stat--sky{border-left-color:var(--color-accent-sky)}
.stat--sky .stat__value{color:var(--color-accent-sky)}
.timeline{
  position:relative;
  list-style:none;
  padding:0;
  margin:0
}
.timeline::before{
  content:"";
  position:absolute;
  top:0;bottom:0;left:0;
  width:2px;
  background:linear-gradient(180deg,var(--color-accent-neon),var(--color-accent-sky),var(--color-accent-ember))
}
.timeline li{
  position:relative;
  padding-left:var(--space-6);
  padding-bottom:var(--space-5)
}
.timeline li::before{
  content:"";
  position:absolute;
  left:-5px;
  top:.5rem;
  width:12px;height:12px;
  background:var(--color-primary-base);
  border:2px solid var(--color-accent-neon);
  transform:rotate(45deg);
  transition:background .2s
}
.timeline li:hover::before{background:var(--color-accent-neon)}
.timeline time{
  font-family:var(--font-data);
  font-size:.8125rem;
  color:var(--color-accent-sky)
}
.fig{
  position:relative;
  overflow:hidden;
  background:
    radial-gradient(ellipse at 75% 25%,rgba(45,156,219,.15),transparent 55%),
    linear-gradient(135deg,var(--color-gradient-start),var(--color-gradient-end));
  border:1px solid rgba(255,255,255,.08);
  border-radius:var(--radius-md);
  aspect-ratio:16/9
}
.fig > *{
  position:absolute;
  inset:0;
  width:100%;
  height:100%;
  object-fit:cover
}
.fig--tall{aspect-ratio:3/4}
.fig--square{aspect-ratio:1/1}
.fig--wide{aspect-ratio:21/9}
.fig--card{aspect-ratio:3/4}
.fig-glow{
  position:absolute;
  inset:0;
  pointer-events:none;
  background:
    radial-gradient(ellipse at 60% 40%,rgba(57,255,20,.12),transparent 60%),
    radial-gradient(ellipse at 20% 80%,rgba(255,107,53,.08),transparent 50%);
  mix-blend-mode:screen
}
.paper{
  position:relative;
  padding:var(--space-6);
  background:var(--color-primary-elevated);
  border-top:4px solid var(--color-accent-ember);
  box-shadow:0 12px 32px rgba(0,0,0,.25)
}
.paper::after{
  content:"";
  position:absolute;
  inset:0;
  background-image:
    linear-gradient(rgba(255,255,255,.012) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.008) 1px,transparent 1px);
  background-size:24px 24px;
  pointer-events:none
}
.tree{
  display:grid;
  grid-template-columns:repeat(auto-fit,minmax(240px,1fr));
  gap:var(--space-5)
}
.tree-node{
  position:relative;
  padding:var(--space-5);
  background:var(--color-primary-elevated);
  border:1px solid rgba(255,255,255,.06);
  border-radius:var(--radius-md);
  transition:transform .2s var(--ease),border-color .2s
}
.tree-node::before{
  content:attr(data-index);
  position:absolute;
  top:-1px;left:-1px;
  width:28px;height:28px;
  display:grid;
  place-items:center;
  font-family:var(--font-data);
  font-size:.75rem;
  color:var(--color-accent-neon);
  border-top:2px solid var(--color-accent-neon);
  border-left:2px solid var(--color-accent-neon)
}
.tree-node:hover{
  transform:translateX(4px);
  border-color:rgba(57,255,20,.35)
}
.reveal{
  opacity:0;
  transform:translateY(24px);
  transition:opacity .6s var(--ease),transform .6s var(--ease)
}
.reveal[data-revealed]{
  opacity:1;
  transform:translateY(0)
}
.site-footer{
  background:var(--color-primary-base);
  border-top:2px solid rgba(57,255,20,.15);
  padding:var(--space-9) 0 0;
  position:relative
}
.site-footer::before{
  content:"";
  position:absolute;
  top:-2px;left:0;
  width:120px;height:2px;
  background:var(--color-accent-ember)
}
.footer-grid{
  display:grid;
  grid-template-columns:1.4fr 1fr 1fr 1.2fr;
  gap:var(--space-7);
  padding-bottom:var(--space-8)
}
.footer-brand .brand{margin-bottom:var(--space-4)}
.brand--footer .brand-name{font-size:1.5rem}
.footer-slogan{
  font-family:var(--font-display);
  font-size:1.125rem;
  color:var(--color-accent-sky);
  margin-bottom:var(--space-3);
  letter-spacing:.02em
}
.footer-note{
  color:var(--color-text-mid);
  font-size:.875rem;
  max-width:38em;
  line-height:1.7
}
.footer-extra{
  color:var(--color-accent-neon);
  font-family:var(--font-data);
  font-size:.8125rem;
  margin-top:var(--space-4);
  letter-spacing:.08em;
  text-transform:uppercase
}
.footer-title{
  font-size:1.125rem;
  color:var(--color-text-hi);
  letter-spacing:.06em;
  margin-bottom:var(--space-5);
  position:relative;
  padding-bottom:var(--space-2)
}
.footer-title::after{
  content:"";
  position:absolute;
  left:0;bottom:0;
  width:32px;height:2px;
  background:var(--color-accent-neon)
}
.footer-links{
  list-style:none;
  padding:0;
  display:grid;
  gap:var(--space-2)
}
.footer-links a{
  color:var(--color-text-mid);
  font-size:.9375rem;
  transition:color .2s;
  display:inline-flex;
  align-items:center;
  gap:var(--space-2)
}
.footer-links a::before{
  content:"›";
  color:var(--color-accent-ember);
  font-family:var(--font-data);
  font-size:1.1rem;
  transition:transform .2s
}
.footer-links a:hover{
  color:var(--color-text-hi);
  text-decoration:none
}
.footer-links a:hover::before{transform:translateX(2px)}
.contact-list{
  margin:0;
  display:grid;
  gap:var(--space-4)
}
.contact-item{
  display:grid;
  gap:0;
  border-left:2px solid rgba(57,255,20,.25);
  padding-left:var(--space-4)
}
.contact-item dt{
  font-family:var(--font-data);
  font-size:.75rem;
  text-transform:uppercase;
  letter-spacing:.1em;
  color:var(--color-text-low)
}
.contact-item dd{
  margin:0;
  color:var(--color-text-hi);
  font-size:.9375rem;
  line-height:1.5;
  word-break:break-all
}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.08);
  padding:var(--space-4) 0
}
.footer-bottom-row{
  display:flex;
  flex-wrap:wrap;
  justify-content:space-between;
  gap:var(--space-2) var(--space-5);
  color:var(--color-text-low);
  font-family:var(--font-data);
  font-size:.8125rem
}
.footer-bottom-row p{margin:0}
.back-to-top{
  position:fixed;
  right:1.5rem;
  bottom:1.5rem;
  z-index:90;
  width:48px;height:48px;
  display:grid;
  place-items:center;
  background:var(--color-primary-elevated);
  border:1px solid rgba(57,255,20,.4);
  color:var(--color-accent-neon);
  font-size:1.25rem;
  font-family:var(--font-data);
  cursor:pointer;
  opacity:0;
  visibility:hidden;
  transform:translateY(12px);
  transition:opacity .25s,transform .25s var(--ease),visibility .25s,background .2s,color .2s;
  clip-path:polygon(8px 0,100% 0,calc(100% - 8px) 100%,0 100%)
}
.back-to-top[data-show]{
  opacity:1;
  visibility:visible;
  transform:translateY(0)
}
.back-to-top:hover{
  background:var(--color-accent-neon);
  color:var(--color-primary-base)
}
table{
  width:100%;
  border-collapse:collapse;
  font-family:var(--font-data);
  font-size:.875rem;
  margin-bottom:var(--space-5)
}
th,td{
  padding:.625rem .75rem;
  border-bottom:1px solid rgba(255,255,255,.08);
  text-align:left
}
th{
  color:var(--color-accent-neon);
  font-weight:400;
  letter-spacing:.04em;
  text-transform:uppercase
}
blockquote{
  border-left:3px solid var(--color-accent-ember);
  padding-left:var(--space-5);
  margin:var(--space-5) 0;
  font-style:italic;
  color:var(--color-text-mid)
}
@media (max-width:1024px){
  .footer-grid{
    grid-template-columns:1fr 1fr;
    gap:var(--space-6)
  }
  .card{grid-column:span 6}
  .card--wide{grid-column:span 12}
  .card--narrow{grid-column:span 6}
}
@media (max-width:768px){
  .site-nav{
    position:fixed;
    top:var(--header-height);
    left:0;right:0;
    margin:0;
    max-height:calc(100vh - var(--header-height));
    overflow-y:auto;
    background:var(--color-overlay-veil);
    -webkit-backdrop-filter:blur(12px);
    backdrop-filter:blur(12px);
    padding:var(--space-6) var(--space-5);
    border-bottom:1px solid rgba(57,255,20,.2);
    transform:translateY(-110%);
    visibility:hidden;
    transition:transform .3s var(--ease),visibility .3s
  }
  .site-nav[data-open]{
    transform:translateY(0);
    visibility:visible
  }
  .nav-links{
    flex-direction:column;
    align-items:stretch;
    gap:var(--space-2)
  }
  .nav-links a{
    display:block;
    padding:var(--space-3) var(--space-4);
    font-size:1.0625rem;
    border-left:2px solid transparent
  }
  .nav-links a[aria-current="page"]{
    border-left-color:var(--color-accent-neon)
  }
  .nav-links a::after{display:none}
  .header-cta{display:none}
  .nav-toggle{display:flex}
  .card{grid-column:span 12}
  .card--narrow{grid-column:span 12}
  h2{font-size:clamp(1.75rem,3vw,2.25rem)}
}
@media (max-width:640px){
  .footer-grid{
    grid-template-columns:1fr;
    gap:var(--space-6)
  }
  .section{padding-block:var(--space-6)}
  .section--more{padding-block:var(--space-8)}
  .footer-bottom-row{
    flex-direction:column;
    align-items:center;
    text-align:center;
    gap:var(--space-2)
  }
  .back-to-top{
    right:1rem;
    bottom:1rem;
    width:44px;height:44px
  }
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{
    animation-duration:.01ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.01ms !important;
    scroll-behavior:auto !important
  }
  .reveal{
    opacity:1;
    transform:none
  }
  .back-to-top{
    transition:none
  }
}