:root{
  --color-bg:#0B0F19;
  --color-bg-2:#131926;
  --color-bg-3:#1B2436;
  --color-primary:#39FF88;
  --color-secondary:#00E5FF;
  --color-accent:#FF8C00;
  --color-text:#F8FAFC;
  --color-muted:#A0AEC0;
  --color-border:#1E293B;
  --color-grid:rgba(57,255,136,.15);
  --font-sans:"Noto Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  --font-mono:"JetBrains Mono","SFMono-Regular",Consolas,"Liberation Mono",monospace;
  --space-2xs:4px;
  --space-xs:8px;
  --space-sm:16px;
  --space-md:24px;
  --space-lg:32px;
  --space-xl:48px;
  --space-2xl:64px;
  --space-3xl:96px;
  --radius-sm:8px;
  --radius-md:16px;
  --radius-lg:24px;
  --ease:cubic-bezier(.22,1,.36,1);
  --header-h:80px;
  --z-header:1000;
  --z-skip:2000;
}
*,*::before,*::after{ box-sizing:border-box; }
*{ margin:0; }
html{
  -webkit-text-size-adjust:100%;
  scroll-behavior:smooth;
  overflow-x:hidden;
}
body{
  margin:0;
  min-height:100vh;
  overflow-x:hidden;
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.75;
  color:var(--color-text);
  background-color:var(--color-bg);
  background-image:
    linear-gradient(var(--color-grid) 1px, transparent 1px),
    linear-gradient(90deg, var(--color-grid) 1px, transparent 1px);
  background-size:48px 48px;
}
p{ margin:0 0 1em; }
ul,ol{ list-style:none; padding:0; margin:0; }
a{ color:var(--color-secondary); text-decoration:none; }
a:hover{ color:var(--color-primary); }
img,picture,video,canvas,svg{ display:block; max-width:100%; }
button,input,select,textarea{ font:inherit; color:inherit; }
button{ background:none; border:0; padding:0; cursor:pointer; }
h1,h2,h3,h4,h5,h6{
  font-family:var(--font-sans);
  font-weight:900;
  line-height:1.15;
  letter-spacing:-0.02em;
  color:var(--color-text);
  margin:0 0 .5em;
}
h1{ font-size:clamp(34px,7vw,64px); }
h2{ font-size:clamp(26px,5vw,42px); }
h3{ font-size:clamp(20px,3vw,28px); }
::selection{ background:var(--color-primary); color:var(--color-bg); }
:focus-visible{
  outline:3px solid var(--color-secondary);
  outline-offset:3px;
  border-radius:8px;
}
.shell{
  width:100%;
  max-width:1240px;
  margin-inline:auto;
  padding-inline:clamp(20px,4vw,48px);
}
.shell--narrow{ max-width:880px; }
.visually-hidden{
  position:absolute;
  width:1px;height:1px;
  padding:0;margin:-1px;
  overflow:hidden;
  clip:rect(0 0 0 0);
  white-space:nowrap;
  border:0;
}
.skip-link{
  position:fixed;
  top:16px;
  left:16px;
  z-index:var(--z-skip);
  display:inline-flex;
  align-items:center;
  padding:10px 20px;
  border-radius:999px;
  background:var(--color-primary);
  color:var(--color-bg);
  font-weight:700;
  font-size:14px;
  box-shadow:0 4px 20px rgba(57,255,136,.4);
  transform:translateY(calc(-200%));
  transition:transform .3s var(--ease);
}
.skip-link:focus-visible{
  transform:translateY(0);
  outline:none;
  box-shadow:0 0 0 4px rgba(0,229,255,.45),0 4px 20px rgba(57,255,136,.4);
}
.site-header{
  position:fixed;
  top:0;left:0;right:0;
  z-index:var(--z-header);
  background:transparent;
  border-bottom:1px solid transparent;
  transition:
    background-color .45s var(--ease),
    border-color .45s var(--ease),
    box-shadow .45s var(--ease);
}
.site-header.is-scrolled{
  background:rgba(11,15,25,.86);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  border-bottom-color:rgba(57,255,136,.18);
  box-shadow:0 12px 40px rgba(0,0,0,.4);
}
.header-inner{
  display:flex;
  align-items:center;
  gap:var(--space-md);
  height:var(--header-h);
}
.brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  margin-right:auto;
  flex-shrink:0;
}
.brand__name{
  font-size:22px;
  font-weight:900;
  letter-spacing:-0.02em;
  color:var(--color-text);
  line-height:1;
}
.brand__tag{
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.16em;
  color:var(--color-primary);
  line-height:1;
}
.brand__tag::before{ content:"["; color:var(--color-secondary); }
.brand__tag::after{ content:"]"; color:var(--color-secondary); }
.header-index{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:7px 14px;
  border:1px solid var(--color-border);
  border-radius:999px;
  background:rgba(11,15,25,.45);
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.14em;
  color:var(--color-muted);
  white-space:nowrap;
}
.header-index__dot{
  width:6px;height:6px;
  border-radius:50%;
  background:var(--color-primary);
  box-shadow:0 0 10px rgba(57,255,136,.8);
}
.nav{ display:block; }
.nav__list{ display:flex; align-items:center; gap:2px; }
.nav__item{ margin:0; }
.nav__link{
  display:block;
  padding:10px 14px;
  border-radius:999px;
  font-size:15px;
  font-weight:500;
  color:var(--color-muted);
  line-height:1.3;
  white-space:nowrap;
  transition:
    color .3s var(--ease),
    background-color .3s var(--ease),
    box-shadow .3s var(--ease);
}
.nav__link:hover{
  color:var(--color-text);
  background:rgba(255,255,255,.06);
}
.nav__link[aria-current="page"]{
  color:var(--color-bg);
  background:var(--color-primary);
  font-weight:700;
  box-shadow:0 0 20px rgba(57,255,136,.35);
}
.nav-toggle{
  display:none;
  align-items:center;
  gap:8px;
  padding:10px 16px;
  border:1px solid var(--color-border);
  border-radius:999px;
  background:rgba(11,15,25,.45);
  color:var(--color-text);
  transition:border-color .3s var(--ease),background-color .3s var(--ease);
}
.nav-toggle:hover{ border-color:var(--color-primary); }
.nav-toggle__bars{ display:inline-flex; flex-direction:column; gap:4px; }
.nav-toggle__bars i{
  display:block;
  width:16px;
  height:2px;
  background:currentColor;
  border-radius:2px;
  transition:transform .35s var(--ease),opacity .35s var(--ease);
}
.nav-toggle__label{
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.14em;
  text-transform:uppercase;
}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars i:first-child{ transform:translateY(3px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] .nav-toggle__bars i:last-child{ transform:translateY(-3px) rotate(-45deg); }
.header-progress{
  position:absolute;
  top:0;left:0;right:0;
  height:3px;
  pointer-events:none;
}
.header-progress__bar{
  display:block;
  width:0%;
  height:100%;
  background:linear-gradient(90deg,var(--color-primary),var(--color-secondary));
  box-shadow:0 0 12px rgba(57,255,136,.6);
}
#main-content{
  display:block;
  padding-top:var(--header-h);
  scroll-margin-top:calc(var(--header-h) + 16px);
}
.site-footer{
  margin-top:var(--space-3xl);
  padding:var(--space-2xl) 0 0;
  background-color:var(--color-bg);
  background-image:
    linear-gradient(var(--color-grid) 1px, transparent 1px),
    linear-gradient(90deg,var(--color-grid) 1px, transparent 1px);
  background-size:48px 48px;
  border-top:1px solid var(--color-border);
  color:var(--color-muted);
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr;
  gap:var(--space-2xl);
}
.footer-brand{ max-width:480px; }
.brand--footer .brand__name{ font-size:26px; }
.brand--footer .brand__tag{ font-size:13px; }
.footer-about{
  margin:var(--space-md) 0;
  font-size:14px;
  color:var(--color-muted);
  line-height:1.8;
}
.footer-contact{
  display:flex;
  flex-direction:column;
  gap:10px;
}
.footer-contact__item{
  display:flex;
  align-items:baseline;
  gap:10px;
  font-size:14px;
}
.footer-contact__label{
  min-width:40px;
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.14em;
  color:var(--color-secondary);
  text-transform:uppercase;
}
.footer-contact__link{
  color:var(--color-muted);
  transition:color .3s var(--ease);
}
.footer-contact__link:hover{ color:var(--color-primary); }
.footer-col{
  display:flex;
  flex-direction:column;
  gap:var(--space-sm);
}
.footer-heading{
  margin:0 0 var(--space-sm);
  font-family:var(--font-mono);
  font-size:12px;
  font-weight:700;
  letter-spacing:.2em;
  text-transform:uppercase;
  color:var(--color-secondary);
}
.footer-links{ display:flex; flex-direction:column; gap:10px; }
.footer-links a{
  display:inline-block;
  position:relative;
  color:var(--color-muted);
  transition:color .3s var(--ease),transform .3s var(--ease);
}
.footer-links a::before{
  content:"";
  display:inline-block;
  width:5px;height:5px;
  margin-right:10px;
  border:1px solid var(--color-primary);
  transform:rotate(45deg);
  vertical-align:2px;
  transition:background-color .3s var(--ease);
}
.footer-links a:hover{
  color:var(--color-primary);
  transform:translateX(4px);
}
.footer-links a:hover::before{ background:var(--color-primary); }
.footer-note{
  position:relative;
  margin:var(--space-2xl) 0 0;
  padding:var(--space-lg);
  border:1px dashed rgba(57,255,136,.28);
  border-radius:var(--radius-md);
  background:rgba(19,25,38,.72);
  font-size:14px;
  line-height:1.8;
}
.footer-note::before{
  content:"NODE // TRUST";
  position:absolute;
  top:-10px;
  left:var(--space-lg);
  padding:0 8px;
  background:var(--color-bg);
  font-family:var(--font-mono);
  font-size:10px;
  letter-spacing:.18em;
  color:var(--color-primary);
}
.footer-bottom{
  margin-top:var(--space-xl);
  padding:var(--space-lg) 0;
  border-top:1px solid var(--color-border);
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:var(--space-sm) var(--space-lg);
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.06em;
  color:var(--color-muted);
}
.footer-icp{
  padding:4px 10px;
  border:1px solid var(--color-border);
  border-radius:999px;
  background:rgba(19,25,38,.6);
}
.footer-copyright{ color:var(--color-text); }
.footer-note__tag{ color:var(--color-muted); }
.btn{
  position:relative;
  overflow:hidden;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:12px 26px;
  border-radius:999px;
  border:1px solid transparent;
  font-family:var(--font-sans);
  font-size:15px;
  font-weight:700;
  text-decoration:none;
  transition:transform .35s var(--ease),box-shadow .35s var(--ease),background-color .35s var(--ease),border-color .35s var(--ease),color .35s var(--ease);
}
.btn--primary{
  background:var(--color-primary);
  color:var(--color-bg);
  box-shadow:0 8px 28px rgba(57,255,136,.22);
}
.btn--primary:hover{
  transform:translateY(-2px);
  box-shadow:0 12px 36px rgba(57,255,136,.32);
}
.btn--ghost{
  background:transparent;
  border-color:var(--color-border);
  color:var(--color-text);
}
.btn--ghost:hover{
  border-color:var(--color-secondary);
  color:var(--color-secondary);
  transform:translateY(-2px);
}
.btn__ripple{
  position:absolute;
  border-radius:50%;
  background:rgba(255,255,255,.55);
  transform:scale(0);
  animation:btn-ripple .6s ease-out forwards;
  pointer-events:none;
}
@keyframes btn-ripple{
  to{ transform:scale(1); opacity:0; }
}
.tag{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:6px 14px;
  border-radius:999px;
  background:var(--color-bg-2);
  border:1px solid var(--color-border);
  font-size:13px;
  font-weight:500;
  color:var(--color-muted);
  line-height:1.4;
}
.tag--live{
  color:var(--color-primary);
  border-color:rgba(57,255,136,.35);
  background:rgba(57,255,136,.08);
}
.tag--accent{
  color:var(--color-accent);
  border-color:rgba(255,140,0,.4);
  background:rgba(255,140,0,.08);
}
.breadcrumb{
  display:flex;
  flex-wrap:wrap;
  gap:8px;
  margin:0 0 var(--space-lg);
  font-size:14px;
  color:var(--color-muted);
}
.breadcrumb li{ display:flex; align-items:center; }
.breadcrumb li + li::before{
  content:"/";
  margin-right:8px;
  color:var(--color-border);
  font-family:var(--font-mono);
}
.breadcrumb a{ color:var(--color-muted); transition:color .3s var(--ease); }
.breadcrumb a:hover{ color:var(--color-secondary); }
.breadcrumb [aria-current="page"]{ color:var(--color-text); font-weight:700; }
.section-head{
  display:flex;
  flex-wrap:wrap;
  align-items:flex-end;
  justify-content:space-between;
  gap:var(--space-md);
  margin-bottom:var(--space-xl);
}
.section-head__index{
  font-family:var(--font-mono);
  font-size:13px;
  letter-spacing:.18em;
  text-transform:uppercase;
  color:var(--color-primary);
}
.section-head__title{
  margin:8px 0 0;
  font-size:clamp(26px,5vw,42px);
}
.section-head__title::before{
  content:attr(data-index);
  margin-right:12px;
  font-family:var(--font-mono);
  font-size:14px;
  letter-spacing:.1em;
  color:var(--color-secondary);
  vertical-align:super;
}
.section-head__sub{
  margin-top:8px;
  max-width:480px;
  font-size:15px;
  color:var(--color-muted);
  line-height:1.7;
}
.card{
  position:relative;
  padding:var(--space-lg);
  background:var(--color-bg-2);
  border:1px solid var(--color-border);
  border-radius:var(--radius-md);
  transition:transform .4s var(--ease),border-color .4s var(--ease),box-shadow .4s var(--ease);
}
.card:hover{
  transform:translateY(-4px);
  border-color:rgba(57,255,136,.35);
  box-shadow:0 20px 48px rgba(0,0,0,.4),0 0 0 1px rgba(57,255,136,.1);
}
.panel{
  padding:var(--space-lg);
  background:var(--color-bg-2);
  border:1px solid var(--color-border);
  border-radius:var(--radius-md);
}
.panel--cut{
  border-radius:0;
  clip-path:polygon(0 0,calc(100% - 24px) 0,100% 24px,100% 100%,24px 100%,0 calc(100% - 24px));
}
.grid{ display:grid; gap:var(--space-lg); }
.grid--2{ grid-template-columns:repeat(2,minmax(0,1fr)); }
.grid--3{ grid-template-columns:repeat(3,minmax(0,1fr)); }
.grid--split{ grid-template-columns:2fr 3fr; }
.image-frame{
  position:relative;
  overflow:hidden;
  border-radius:var(--radius-md);
  border:1px solid var(--color-border);
  background:
    linear-gradient(135deg,rgba(57,255,136,.06),rgba(0,229,255,.06)),
    var(--color-bg-2);
}
.image-frame::before{
  content:"IMAGE SLOT";
  position:absolute;
  top:14px;left:14px;
  z-index:2;
  padding:4px 12px;
  border:1px solid var(--color-border);
  border-radius:999px;
  background:rgba(11,15,25,.72);
  font-family:var(--font-mono);
  font-size:10px;
  letter-spacing:.18em;
  color:var(--color-muted);
}
.image-frame--16x9{ aspect-ratio:16/9; }
.image-frame--4x5{ aspect-ratio:4/5; }
.image-frame--full{ aspect-ratio:21/9; }
.image-frame img{
  position:absolute;
  inset:0;
  width:100%;
  height:100%;
  object-fit:cover;
}
.image-frame--empty::before{ content:attr(data-label); }
.image-frame:has(img)::before{ display:none; }
.divider{
  height:1px;
  margin:var(--space-2xl) 0;
  border:0;
  background:linear-gradient(90deg,var(--color-primary),var(--color-border),transparent);
}
@media (max-width:960px){
  :root{ --header-h:64px; }
  .nav-toggle{ display:inline-flex; }
  .header-index{ display:none; }
  .nav{
    position:absolute;
    top:calc(100% - 1px);
    left:0;right:0;
    max-height:calc(100vh - var(--header-h));
    overflow-y:auto;
    background:rgba(11,15,25,.96);
    -webkit-backdrop-filter:blur(18px);
    backdrop-filter:blur(18px);
    border-bottom:1px solid var(--color-border);
    box-shadow:0 20px 40px rgba(0,0,0,.4);
    opacity:0;
    visibility:hidden;
    transform:translateY(-10px);
    transition:opacity .35s var(--ease),transform .35s var(--ease),visibility .35s;
  }
  .nav[data-open]{
    opacity:1;
    visibility:visible;
    transform:translateY(0);
  }
  .nav__list{
    flex-direction:column;
    align-items:stretch;
    padding:12px 16px 20px;
    gap:4px;
  }
  .nav__item{ width:100%; }
  .nav__link{
    padding:14px 16px;
    border-radius:12px;
    font-size:17px;
    color:var(--color-text);
  }
  .nav__link[aria-current="page"]{
    background:transparent;
    color:var(--color-primary);
    font-weight:700;
    box-shadow:inset 2px 0 0 var(--color-primary);
  }
}
@media (max-width:860px){
  .footer-grid{
    grid-template-columns:1fr;
    gap:var(--space-xl);
  }
  .footer-bottom{
    flex-direction:column;
    align-items:flex-start;
  }
}
@media (max-width:640px){
  .section-head{
    flex-direction:column;
    align-items:flex-start;
  }
}
@media (max-width:420px){
  .nav-toggle__label{ display:none; }
}
@media (prefers-reduced-motion:reduce){
  html{ scroll-behavior:auto; }
  *,*::before,*::after{
    animation-duration:.01ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.01ms !important;
  }
}