:root{
  --bg:#0A0E17;
  --surface:#111827;
  --ink:#F9FAFB;
  --muted:#9CA3AF;
  --line:#1F2937;
  --neon:#39FF88;
  --electric:#00BFFF;
  --amber:#FFB302;
  --cyan:#00E5FF;
  --glass:rgba(255,255,255,0.05);
  --rail-w:260px;
  --header-h:72px;
  --radius:10px;
  --font-head:'Noto Sans SC','Inter',sans-serif;
  --font-body:'Noto Sans SC','PingFang SC','Microsoft YaHei',sans-serif;
  --font-mono:'JetBrains Mono','Roboto Mono',monospace;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:var(--font-body);
  font-size:16px;
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,p,ul,ol,dl,dd,address{margin:0}
ul,ol{list-style:none;padding:0}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:none;cursor:pointer}
address{font-style:normal}
::selection{background:rgba(57,255,136,0.3)}
:focus-visible{outline:2px solid var(--neon);outline-offset:3px;border-radius:4px}

.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;
}

.skip-link{
  position:fixed;
  top:0;
  left:16px;
  z-index:2000;
  transform:translateY(-160%);
  background:var(--neon);
  color:#04070C;
  font-weight:700;
  padding:12px 20px;
  border-radius:0 0 8px 8px;
  transition:transform .2s ease;
}
.skip-link:focus{
  transform:translateY(0);
}

.scroll-progress{
  position:fixed;
  top:0;
  left:0;
  z-index:1500;
  width:100%;
  height:3px;
  background:linear-gradient(90deg,var(--neon),var(--electric) 70%,transparent);
  transform:scaleX(0);
  transform-origin:0 50%;
  pointer-events:none;
}

.rail{
  position:fixed;
  top:0;
  left:0;
  bottom:0;
  z-index:500;
  width:var(--rail-w);
  display:flex;
  flex-direction:column;
  padding:24px 18px 20px;
  overflow-y:auto;
  background:
    radial-gradient(circle at 0% 0%,rgba(0,229,255,0.14),transparent 45%),
    var(--surface);
  border-right:1px solid var(--line);
}
.rail::before{
  content:"";
  position:absolute;
  inset:0;
  pointer-events:none;
  background-image:radial-gradient(rgba(255,255,255,0.035) 1px,transparent 1px);
  background-size:26px 26px;
}

.rail-header{
  position:relative;
  display:flex;
  flex-direction:column;
  gap:6px;
  padding:0 4px;
}
.rail-caption{
  font-family:var(--font-mono);
  font-size:0.72rem;
  letter-spacing:0.08em;
  color:var(--muted);
  margin:0;
}

.brand{
  display:inline-flex;
  align-items:center;
  gap:12px;
  color:var(--ink);
  transition:opacity .2s ease;
}
.brand:hover{
  color:var(--ink);
}
.brand-mark{
  display:grid;
  place-items:center;
  width:34px;
  height:34px;
  background:var(--neon);
  color:#04070C;
  font-family:var(--font-mono);
  font-weight:800;
  font-size:0.85rem;
  border-radius:6px;
  transform:rotate(-4deg);
  box-shadow:0 0 18px rgba(57,255,136,0.25);
  transition:transform .25s ease,box-shadow .25s ease;
}
.brand:hover .brand-mark{
  transform:rotate(0) scale(1.06);
  box-shadow:0 0 24px rgba(57,255,136,0.4);
}
.brand-name{
  font-family:var(--font-head);
  font-weight:800;
  font-size:1.4rem;
  letter-spacing:0.02em;
  line-height:1.2;
  white-space:nowrap;
}
.brand-name em{
  font-style:normal;
  color:var(--electric);
}

.site-nav{
  position:relative;
  flex:1;
  margin-top:38px;
}
.nav-list{
  display:flex;
  flex-direction:column;
  gap:4px;
}
.nav-link{
  display:flex;
  align-items:center;
  gap:12px;
  padding:10px 12px;
  color:var(--muted);
  font-weight:500;
  font-size:0.95rem;
  line-height:1.4;
  border-radius:6px;
  border-left:2px solid transparent;
  transition:background .2s ease,color .2s ease,border-color .2s ease,transform .2s ease;
}
.nav-link::before{
  content:attr(data-index);
  min-width:20px;
  font-family:var(--font-mono);
  font-size:0.68rem;
  letter-spacing:0.05em;
  color:var(--electric);
}
.nav-link:hover{
  color:var(--ink);
  background:rgba(255,255,255,0.05);
  transform:translateX(2px);
}
.nav-link[aria-current="page"]{
  color:var(--neon);
  background:linear-gradient(90deg,rgba(57,255,136,0.09),transparent 75%);
  border-left-color:var(--neon);
}
.nav-link[aria-current="page"]::before{
  color:var(--neon);
}

.rail-status{
  position:relative;
  margin-top:38px;
  padding:14px 4px 0;
  border-top:1px solid var(--line);
  font-family:var(--font-mono);
  font-size:0.7rem;
  letter-spacing:0.06em;
  color:var(--muted);
}
.rail-status-line{
  display:flex;
  justify-content:space-between;
  gap:8px;
  margin-bottom:6px;
}
.rail-status-line strong{
  color:var(--neon);
  font-weight:600;
}

.site-header{
  position:sticky;
  top:0;
  z-index:400;
  display:flex;
  align-items:center;
  gap:16px;
  height:var(--header-h);
  padding:0 clamp(16px,3vw,32px);
  background:rgba(10,14,23,0.86);
  -webkit-backdrop-filter:blur(12px);
  backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line);
}
.site-header .brand{
  display:none;
}
.header-context{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-family:var(--font-mono);
  font-size:0.75rem;
  letter-spacing:0.08em;
  color:var(--muted);
  white-space:nowrap;
}
.nav-toggle{
  display:none;
  align-items:center;
  justify-content:center;
  width:42px;
  height:42px;
  flex:0 0 auto;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:8px;
}
.nav-toggle-icon,
.nav-toggle-icon::before,
.nav-toggle-icon::after{
  display:block;
  width:18px;
  height:2px;
  background:var(--ink);
  border-radius:2px;
  transition:background .2s ease,transform .2s ease,top .2s ease;
}
.nav-toggle-icon{
  position:relative;
}
.nav-toggle-icon::before,
.nav-toggle-icon::after{
  content:"";
  position:absolute;
  left:0;
}
.nav-toggle-icon::before{
  top:-5px;
}
.nav-toggle-icon::after{
  top:5px;
}
.nav-toggle[aria-expanded="true"]{
  border-color:rgba(57,255,136,0.5);
}
.nav-toggle[aria-expanded="true"] .nav-toggle-icon{
  background:transparent;
}
.nav-toggle[aria-expanded="true"] .nav-toggle-icon::before{
  top:0;
  transform:rotate(45deg);
}
.nav-toggle[aria-expanded="true"] .nav-toggle-icon::after{
  top:0;
  transform:rotate(-45deg);
}

.live-counter{
  display:inline-flex;
  align-items:center;
  gap:10px;
  margin-left:auto;
  padding:9px 16px;
  font-family:var(--font-mono);
  font-size:0.82rem;
  line-height:1;
  white-space:nowrap;
  border:1px solid rgba(57,255,136,0.28);
  border-radius:999px;
  background:rgba(57,255,136,0.07);
}
.live-counter-dot{
  width:7px;
  height:7px;
  border-radius:50%;
  background:var(--neon);
  box-shadow:0 0 12px rgba(57,255,136,0.65);
  animation:blink 2s ease-in-out infinite;
}
.live-counter-label{
  color:var(--muted);
}
.live-counter-value{
  color:var(--neon);
  font-weight:700;
}
@keyframes blink{
  0%,100%{opacity:1}
  50%{opacity:0.35}
}

@media(min-width:1024px){
  body{
    padding-left:var(--rail-w);
  }
}

@media(max-width:1023px){
  .site-header .brand{
    display:inline-flex;
  }
  .site-header .brand-name{
    font-size:1.2rem;
  }
  .header-context{
    display:none;
  }
  .nav-toggle{
    display:inline-flex;
  }
  .rail{
    width:min(320px,86vw);
    transform:translateX(-100%);
    visibility:hidden;
    box-shadow:24px 0 60px rgba(0,0,0,0.5);
    transition:transform .3s ease,visibility .3s ease;
  }
  .rail[data-open="true"]{
    transform:translateX(0);
    visibility:visible;
    transition:transform .3s ease,visibility 0s ease;
  }
}

.site-footer{
  position:relative;
  background:#060911;
  border-top:1px solid var(--line);
  padding:48px clamp(20px,4vw,56px) 32px;
}
.site-footer::before{
  content:"";
  position:absolute;
  top:0;
  left:0;
  right:0;
  height:2px;
  background:linear-gradient(90deg,var(--neon),var(--electric) 45%,transparent 95%);
}
.footer-grid{
  max-width:1200px;
  margin:0 auto;
  display:grid;
  grid-template-columns:1fr;
  gap:40px;
}
.footer-col{
  min-width:0;
}
.footer-brand-col{
  max-width:36em;
}
.footer-tagline{
  color:var(--muted);
  font-size:0.95rem;
  margin:16px 0 0;
}
.footer-trust{
  color:var(--muted);
  font-size:0.85rem;
  margin-top:18px;
  padding-left:14px;
  border-left:3px solid var(--electric);
}
.footer-heading{
  display:block;
  margin-bottom:16px;
  font-family:var(--font-mono);
  font-size:0.75rem;
  font-weight:600;
  letter-spacing:0.12em;
  text-transform:uppercase;
  color:var(--electric);
}
.footer-links{
  display:flex;
  flex-direction:column;
  gap:8px;
}
.footer-links a{
  color:var(--muted);
  transition:color .2s ease,padding-left .2s ease;
}
.footer-links a:hover{
  color:var(--neon);
  padding-left:4px;
}
.footer-contact-col p{
  margin:0 0 10px;
  color:var(--muted);
  font-size:0.93rem;
}
.footer-contact-col .btn{
  margin-top:14px;
}
.footer-legal{
  max-width:1200px;
  margin:44px auto 0;
  padding-top:20px;
  border-top:1px solid var(--line);
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:6px 24px;
  font-size:0.82rem;
  color:var(--muted);
}
.footer-legal a{
  color:var(--muted);
  transition:color .2s ease;
}
.footer-legal a:hover{
  color:var(--neon);
}
@media(min-width:768px){
  .footer-grid{
    grid-template-columns:1.4fr 1fr;
    column-gap:48px;
  }
  .footer-contact-col{
    grid-column:1 / -1;
  }
}
@media(min-width:1024px){
  .footer-grid{
    grid-template-columns:1.6fr 1fr 1.2fr;
  }
  .footer-contact-col{
    grid-column:auto;
  }
}

.page-container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding:clamp(28px,5vw,64px) clamp(16px,3vw,32px);
}
.section + .section{
  margin-top:56px;
}

.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-family:var(--font-mono);
  font-size:0.75rem;
  font-weight:600;
  letter-spacing:0.1em;
  text-transform:uppercase;
  color:var(--electric);
}
.eyebrow::before{
  content:"";
  width:22px;
  height:1px;
  background:var(--electric);
}

.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:10px 18px;
  border:1px solid transparent;
  border-radius:6px;
  font-weight:600;
  font-size:0.9rem;
  line-height:1.2;
  transition:background .2s ease,border-color .2s ease,color .2s ease,transform .2s ease;
}
.btn-primary{
  background:var(--neon);
  color:#04070C;
}
.btn-primary:hover{
  background:#22D96A;
  color:#04070C;
  transform:translateY(-1px);
}
.btn-ghost{
  border-color:var(--line);
  color:var(--ink);
  background:rgba(255,255,255,0.02);
}
.btn-ghost:hover{
  border-color:var(--electric);
  color:var(--electric);
}
.btn-sm{
  padding:7px 14px;
  font-size:0.8rem;
}

.panel{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:20px;
}
.panel + .panel{
  margin-top:16px;
}

.breadcrumb{
  display:flex;
  flex-wrap:wrap;
  gap:8px;
  margin-bottom:24px;
  font-size:0.85rem;
  color:var(--muted);
}
.breadcrumb a{
  color:var(--electric);
}
.breadcrumb a:hover{
  color:var(--neon);
}

.media-frame{
  position:relative;
  overflow:hidden;
  min-height:180px;
  display:grid;
  place-items:center;
  background:
    radial-gradient(circle at 20% 25%,rgba(0,229,255,0.12),transparent 42%),
    linear-gradient(135deg,var(--surface),var(--bg));
  border:1px solid var(--line);
  border-radius:var(--radius);
}
.media-frame::after{
  content:"";
  position:absolute;
  inset:0;
  pointer-events:none;
  background-image:
    linear-gradient(rgba(255,255,255,0.02) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,0.02) 1px,transparent 1px);
  background-size:32px 32px;
}

html.js [data-reveal]{
  opacity:0;
  transform:translateY(16px);
  transition:opacity .5s ease,transform .5s ease;
  will-change:opacity,transform;
}
html.js [data-reveal][data-revealed]{
  opacity:1;
  transform:none;
}

@media(prefers-reduced-motion:reduce){
  html{
    scroll-behavior:auto;
  }
  *,*::before,*::after{
    animation-duration:0.01ms !important;
    animation-iteration-count:1 !important;
    transition-duration:0.01ms !important;
  }
  .scroll-progress{
    display:none;
  }
  .live-counter-dot{
    animation:none;
  }
  html.js [data-reveal]{
    opacity:1;
    transform:none;
  }
}