:root{
  --ink-void:#050714;
  --ink-night:#0B1230;
  --ink-nebula:#111C4A;
  --accent-violet:#8B5CF6;
  --accent-violet-deep:#6D28D9;
  --accent-cyan:#22D3EE;
  --accent-mint:#5EEAD4;
  --accent-amber:#F5B942;
  --text-primary:#F5F7FF;
  --text-muted:#A8B3CF;
  --text-dim:#8994B1;
  --line-glow:#2A3766;
  --radius-card:18px;
  --radius-pill:999px;
  --font-sans:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  --font-mono:"IBM Plex Mono","JetBrains Mono",ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  --shell-max:1220px;
  --gutter:clamp(1rem,4vw,2.5rem);
  --ease:cubic-bezier(.22,.8,.28,1);
}

*,*::before,*::after{box-sizing:border-box;}

html{
  -webkit-text-size-adjust:100%;
  scroll-behavior:smooth;
}

body{
  margin:0;
  min-height:100vh;
  background-color:var(--ink-void);
  background-image:
    radial-gradient(1100px 620px at 12% -12%,rgba(139,92,246,.20),transparent 62%),
    radial-gradient(900px 540px at 88% 4%,rgba(34,211,238,.14),transparent 60%),
    radial-gradient(760px 720px at 50% 112%,rgba(94,234,212,.07),transparent 66%);
  background-repeat:no-repeat;
  color:var(--text-primary);
  font-family:var(--font-sans);
  font-size:clamp(.95rem,.35vw + .88rem,1.075rem);
  font-weight:400;
  line-height:1.7;
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
  text-rendering:optimizeLegibility;
}

img,picture,svg,video{
  display:block;
  max-width:100%;
}

figure{margin:0;}

h1,h2,h3,h4,h5,h6{
  margin:0 0 .6em;
  line-height:1.15;
  font-weight:800;
  letter-spacing:-.012em;
  color:var(--text-primary);
}

h1{font-size:clamp(2.2rem,5vw,5rem);font-weight:900;}
h2{font-size:clamp(1.5rem,2.6vw,2.1rem);}
h3{font-size:clamp(1.15rem,1.6vw,1.35rem);font-weight:700;}
h4{font-size:1.02rem;font-weight:700;}

p{margin:0 0 1em;}

a{
  color:var(--accent-cyan);
  text-decoration-thickness:1px;
  text-underline-offset:.28em;
}

a:hover{color:var(--accent-mint);}

ul,ol{margin:0 0 1em;padding-left:1.25em;}

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

::selection{
  background:rgba(139,92,246,.55);
  color:#fff;
}

.skip-link{
  position:fixed;
  top:.5rem;
  left:.5rem;
  z-index:300;
  display:inline-block;
  padding:.72rem 1.15rem;
  border-radius:var(--radius-pill);
  background:var(--accent-cyan);
  color:#04121A;
  font-weight:700;
  font-size:.88rem;
  text-decoration:none;
  transform:translateY(-180%);
  transition:transform .22s var(--ease);
}

.skip-link:focus,
.skip-link:focus-visible{
  transform:translateY(0);
  color:#04121A;
}

.container{
  width:100%;
  max-width:var(--shell-max);
  margin-inline:auto;
  padding-inline:var(--gutter);
}

.container--narrow{max-width:860px;}

#main-content{scroll-margin-top:6.5rem;}

.muted{color:var(--text-muted);}

.data-num{
  font-family:var(--font-mono);
  font-variant-numeric:tabular-nums;
  letter-spacing:-.01em;
}

.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:.6rem;
  margin:0 0 1rem;
  font-family:var(--font-mono);
  font-size:.72rem;
  font-weight:600;
  letter-spacing:.24em;
  text-transform:uppercase;
  color:var(--accent-cyan);
}

.eyebrow::before{
  content:"";
  width:26px;
  height:1px;
  flex:none;
  background:linear-gradient(90deg,var(--accent-violet),var(--accent-cyan));
}

.section-heading{
  display:grid;
  gap:.6rem;
  max-width:62ch;
  margin:0 0 clamp(1.5rem,3vw,2.75rem);
}

.section-heading h2,
.section-heading h3{margin:0;}

.section-heading p{
  margin:0;
  color:var(--text-muted);
  font-size:.98rem;
}

.star-divider{
  position:relative;
  height:1px;
  margin:clamp(2rem,4vw,3.5rem) 0;
  border:0;
  background:linear-gradient(90deg,transparent,var(--line-glow) 18%,var(--line-glow) 82%,transparent);
}

.star-divider::after{
  content:"";
  position:absolute;
  top:-2px;
  left:50%;
  width:5px;
  height:5px;
  margin-left:-2.5px;
  border-radius:50%;
  background:var(--accent-amber);
  box-shadow:0 0 10px 1px rgba(245,185,66,.7);
}

.grid{
  display:grid;
  grid-template-columns:repeat(12,minmax(0,1fr));
  gap:clamp(1rem,2.2vw,1.75rem);
}

.grid > *{
  min-width:0;
  grid-column:span var(--span,12);
}

.panel{
  position:relative;
  padding:clamp(1.1rem,2vw,1.75rem);
  border:1px solid var(--line-glow);
  border-radius:var(--radius-card);
  background:linear-gradient(155deg,rgba(17,28,74,.72),rgba(11,18,48,.52));
  box-shadow:0 26px 54px -36px rgba(0,0,0,.95);
}

.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:.5em;
  padding:.78rem 1.35rem;
  border:1px solid transparent;
  border-radius:var(--radius-pill);
  background:transparent;
  color:var(--text-primary);
  font-family:inherit;
  font-size:.92rem;
  font-weight:700;
  line-height:1.2;
  letter-spacing:.01em;
  text-decoration:none;
  white-space:nowrap;
  cursor:pointer;
  transition:transform .24s var(--ease),background-color .24s var(--ease),border-color .24s var(--ease),color .24s var(--ease),box-shadow .24s var(--ease);
}

.btn:hover{transform:translateY(-1px);}

.btn:active{transform:translateY(0);}

.btn--primary{
  background:linear-gradient(120deg,var(--accent-violet),var(--accent-violet-deep));
  border-color:rgba(34,211,238,.32);
  color:#fff;
  box-shadow:0 12px 32px -16px rgba(139,92,246,.9),inset 0 1px 0 rgba(255,255,255,.18);
}

.btn--primary:hover{
  background:linear-gradient(120deg,#9F71FF,#7C3AED);
  color:#fff;
  box-shadow:0 16px 38px -16px rgba(34,211,238,.55),inset 0 1px 0 rgba(255,255,255,.22);
}

.btn--ghost{
  border-color:var(--line-glow);
  background:rgba(245,247,255,.03);
  color:var(--text-primary);
}

.btn--ghost:hover{
  border-color:rgba(34,211,238,.6);
  color:var(--accent-cyan);
}

.btn--sm{
  padding:.5rem .95rem;
  font-size:.82rem;
}

.breadcrumbs{
  font-size:.82rem;
  color:var(--text-muted);
}

.breadcrumbs ol{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:.45rem;
  margin:0;
  padding:0;
  list-style:none;
}

.breadcrumbs li{
  display:flex;
  align-items:center;
  gap:.45rem;
}

.breadcrumbs li + li::before{
  content:"/";
  color:var(--line-glow);
}

.breadcrumbs a{
  color:var(--text-muted);
  text-decoration:none;
}

.breadcrumbs a:hover{color:var(--accent-cyan);}

.breadcrumbs [aria-current="page"]{color:var(--text-primary);}

.media-frame{
  position:relative;
  display:block;
  width:100%;
  aspect-ratio:16 / 9;
  overflow:hidden;
  border:1px solid var(--line-glow);
  border-radius:var(--radius-card);
  background:linear-gradient(150deg,var(--ink-nebula),var(--ink-night));
}

.media-frame img,
.media-frame picture,
.media-frame video,
.media-frame svg{
  width:100%;
  height:100%;
  object-fit:cover;
}

.media-frame::after{
  content:"";
  position:absolute;
  inset:0;
  pointer-events:none;
  background:radial-gradient(120% 90% at 82% 0%,rgba(34,211,238,.18),transparent 58%);
  mix-blend-mode:screen;
}

.media-frame--wide{aspect-ratio:21 / 9;}
.media-frame--tall{aspect-ratio:4 / 5;}

.site-header{
  position:sticky;
  top:0;
  z-index:90;
  padding:clamp(.5rem,1.2vw,1rem) var(--gutter) 0;
  pointer-events:none;
}

.header-shell{
  pointer-events:auto;
  display:flex;
  align-items:center;
  gap:clamp(.5rem,1.6vw,1.25rem);
  width:100%;
  max-width:var(--shell-max);
  margin-inline:auto;
  padding:.52rem .55rem .52rem 1.1rem;
  border:1px solid var(--line-glow);
  border-radius:var(--radius-pill);
  background:linear-gradient(120deg,rgba(17,28,74,.92),rgba(7,10,26,.88));
  box-shadow:0 18px 48px -26px rgba(2,4,14,.95),inset 0 1px 0 rgba(245,247,255,.07);
  transition:border-color .3s var(--ease),box-shadow .3s var(--ease),background .3s var(--ease);
}

html[data-scrolled="true"] .header-shell{
  border-color:rgba(139,92,246,.5);
  background:linear-gradient(120deg,rgba(20,30,78,.96),rgba(5,7,20,.94));
  box-shadow:0 24px 56px -28px rgba(0,0,0,.98),inset 0 1px 0 rgba(245,247,255,.09);
}

.brand{
  display:inline-flex;
  align-items:center;
  gap:.68rem;
  flex:0 0 auto;
  text-decoration:none;
}

.brand-mark{
  position:relative;
  width:31px;
  height:31px;
  flex:none;
  border-radius:10px;
  background:
    radial-gradient(circle at 28% 26%,var(--accent-cyan),transparent 60%),
    conic-gradient(from 200deg,var(--accent-violet),var(--accent-cyan),var(--accent-violet));
  box-shadow:0 0 18px -4px rgba(34,211,238,.75);
}

.brand-mark::after{
  content:"";
  position:absolute;
  inset:8px;
  border-radius:4px;
  background:var(--ink-void);
}

.brand-text{
  display:flex;
  flex-direction:column;
  line-height:1.18;
}

.brand-name{
  font-size:1.02rem;
  font-weight:800;
  letter-spacing:.04em;
  color:var(--text-primary);
}

.brand-tagline{
  font-family:var(--font-mono);
  font-size:.64rem;
  letter-spacing:.2em;
  color:var(--text-muted);
}

.site-nav{
  margin-inline:auto;
  min-width:0;
}

.nav-list{
  display:flex;
  align-items:center;
  gap:.15rem;
  margin:0;
  padding:0;
  list-style:none;
}

.nav-link{
  position:relative;
  display:block;
  padding:.5rem .78rem .62rem;
  border-radius:var(--radius-pill);
  color:var(--text-muted);
  font-size:.9rem;
  font-weight:500;
  text-decoration:none;
  white-space:nowrap;
  transition:color .22s var(--ease),background-color .22s var(--ease);
}

.nav-link:hover{
  color:var(--text-primary);
  background:rgba(139,92,246,.16);
}

.nav-link[aria-current="page"]{
  color:#fff;
  background:rgba(34,211,238,.1);
}

.nav-link[aria-current="page"]::after{
  content:"";
  position:absolute;
  left:50%;
  bottom:.2rem;
  width:4px;
  height:4px;
  margin-left:-2px;
  border-radius:50%;
  background:var(--accent-cyan);
  box-shadow:0 0 9px 1px rgba(34,211,238,.9);
}

.header-meta{
  display:flex;
  align-items:center;
  gap:.6rem;
  flex:0 0 auto;
}

.version-badge{
  padding:.32rem .72rem;
  border:1px solid rgba(245,185,66,.35);
  border-radius:var(--radius-pill);
  background:rgba(245,185,66,.07);
  color:var(--accent-amber);
  font-family:var(--font-mono);
  font-size:.68rem;
  letter-spacing:.06em;
  white-space:nowrap;
}

.nav-toggle{
  display:none;
  align-items:center;
  gap:.5rem;
  margin-left:auto;
  padding:.5rem .9rem .5rem .72rem;
  border:1px solid var(--line-glow);
  border-radius:var(--radius-pill);
  background:rgba(245,247,255,.04);
  color:var(--text-primary);
  font-family:inherit;
  font-size:.85rem;
  font-weight:600;
  cursor:pointer;
  transition:border-color .22s var(--ease),background-color .22s var(--ease);
}

.nav-toggle:hover{border-color:rgba(34,211,238,.55);}

.nav-toggle[aria-expanded="true"]{
  border-color:rgba(34,211,238,.62);
  background:rgba(34,211,238,.13);
}

.nav-toggle-bars{
  display:inline-flex;
  flex-direction:column;
  justify-content:space-between;
  width:18px;
  height:12px;
  flex:none;
}

.nav-toggle-bars i{
  display:block;
  height:2px;
  border-radius:2px;
  background:currentColor;
  transition:transform .28s var(--ease),opacity .2s var(--ease);
}

.nav-toggle[aria-expanded="true"] .nav-toggle-bars i:first-child{transform:translateY(5px) rotate(45deg);}
.nav-toggle[aria-expanded="true"] .nav-toggle-bars i:last-child{transform:translateY(-5px) rotate(-45deg);}

.nav-toggle-label{
  font-size:.85rem;
  letter-spacing:.04em;
}

.scroll-progress{
  position:absolute;
  left:0;
  right:0;
  bottom:0;
  height:2px;
  transform:scaleX(0);
  transform-origin:0 50%;
  background:linear-gradient(90deg,var(--accent-violet),var(--accent-cyan));
  opacity:.85;
  pointer-events:none;
}

.site-footer{
  position:relative;
  margin-top:clamp(3rem,8vw,6rem);
  border-top:1px solid var(--line-glow);
  background:
    radial-gradient(900px 420px at 12% 0%,rgba(139,92,246,.16),transparent 62%),
    radial-gradient(720px 400px at 92% 12%,rgba(34,211,238,.1),transparent 60%),
    linear-gradient(180deg,#070C22 0%,#050714 100%);
  color:var(--text-muted);
}

.site-footer::before{
  content:"";
  position:absolute;
  top:-1px;
  left:0;
  right:0;
  height:1px;
  background:linear-gradient(90deg,transparent,rgba(34,211,238,.8),rgba(139,92,246,.8),transparent);
}

.footer-shell{
  width:100%;
  max-width:var(--shell-max);
  margin-inline:auto;
  padding:clamp(2.5rem,5vw,4.5rem) var(--gutter) clamp(1.5rem,3vw,2.5rem);
}

.footer-top{
  display:grid;
  grid-template-columns:minmax(0,1.1fr) minmax(0,2.05fr);
  gap:clamp(2rem,5vw,4.5rem);
  align-items:start;
}

.footer-brand{
  display:flex;
  flex-direction:column;
  gap:.85rem;
  max-width:46ch;
}

.footer-brand-link{
  font-size:clamp(1.6rem,3vw,2.3rem);
  font-weight:900;
  letter-spacing:-.02em;
  color:var(--text-primary);
  text-decoration:none;
  line-height:1.1;
}

.footer-brand-link:hover{color:var(--accent-cyan);}

.footer-statement{
  margin:0;
  color:var(--text-muted);
  font-size:.92rem;
  line-height:1.75;
}

.footer-version{
  align-self:flex-start;
  padding:.34rem .8rem;
  border:1px solid var(--line-glow);
  border-radius:var(--radius-pill);
  font-family:var(--font-mono);
  font-size:.68rem;
  letter-spacing:.1em;
  color:var(--accent-amber);
}

.footer-grid{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:clamp(1.25rem,2.6vw,2.25rem);
}

.footer-col{min-width:0;}

.footer-col-title{
  margin:0 0 1rem;
  font-family:var(--font-mono);
  font-size:.74rem;
  font-weight:700;
  letter-spacing:.22em;
  text-transform:uppercase;
  color:var(--accent-cyan);
}

.footer-links{
  display:grid;
  gap:.55rem;
  margin:0;
  padding:0;
  list-style:none;
}

.footer-link{
  display:inline-block;
  color:var(--text-muted);
  font-size:.93rem;
  text-decoration:none;
  transition:color .2s var(--ease),transform .2s var(--ease);
}

.footer-link:hover{
  color:var(--text-primary);
  transform:translateX(3px);
}

.footer-contact-list{
  display:grid;
  gap:.9rem;
  margin:0;
  padding:0;
  list-style:none;
}

.footer-contact-label{
  display:block;
  margin-bottom:.12rem;
  font-family:var(--font-mono);
  font-size:.7rem;
  letter-spacing:.16em;
  color:var(--accent-amber);
}

.footer-contact-value{
  display:block;
  color:var(--text-primary);
  font-size:.9rem;
  line-height:1.6;
  overflow-wrap:anywhere;
}

.footer-note{
  margin:1rem 0 0;
  color:var(--text-dim);
  font-size:.8rem;
  line-height:1.7;
}

.footer-bottom{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:1rem;
  margin-top:clamp(2rem,4vw,3rem);
  padding-top:clamp(1.25rem,2.5vw,1.75rem);
  border-top:1px solid rgba(42,55,102,.7);
}

.footer-legal{
  margin:0;
  font-family:var(--font-mono);
  font-size:.8rem;
  letter-spacing:.02em;
  color:var(--text-dim);
}

.footer-icp{color:var(--text-muted);}

.footer-legal-links{
  display:flex;
  flex-wrap:wrap;
  gap:.35rem 1.1rem;
  margin:0;
  padding:0;
  list-style:none;
}

.footer-legal-link{
  font-size:.8rem;
  color:var(--text-dim);
  text-decoration:none;
  transition:color .2s var(--ease);
}

.footer-legal-link:hover{color:var(--accent-cyan);}

@media (scripting:enabled){
  [data-reveal]{
    opacity:0;
    transform:translate3d(0,20px,0);
    transition:opacity .7s var(--ease),transform .7s var(--ease);
  }
  [data-reveal].is-revealed{
    opacity:1;
    transform:none;
  }
}

@media (max-width:1179px){
  .version-badge{display:none;}
}

@media (max-width:1023px){
  .header-shell{padding:.48rem .55rem .48rem .85rem;}
  .brand-tagline{display:none;}
  .brand-name{font-size:.98rem;}
  .nav-toggle{display:inline-flex;}
  .header-meta{display:none;}

  .site-nav{
    position:fixed;
    left:var(--gutter);
    right:var(--gutter);
    bottom:calc(1rem + env(safe-area-inset-bottom,0px));
    z-index:120;
    max-height:min(70vh,30rem);
    overflow-y:auto;
    overscroll-behavior:contain;
    padding:.7rem;
    border:1px solid var(--line-glow);
    border-radius:24px;
    background:linear-gradient(160deg,rgba(17,28,74,.98),rgba(5,7,20,.99));
    box-shadow:0 32px 72px -30px rgba(0,0,0,.98),inset 0 1px 0 rgba(245,247,255,.08);
    opacity:0;
    visibility:hidden;
    pointer-events:none;
    transform:translateY(calc(100% + 2.5rem));
    transition:transform .42s var(--ease),opacity .3s var(--ease),visibility .3s var(--ease),border-color .3s var(--ease);
  }

  .site-nav[data-open]{
    opacity:1;
    visibility:visible;
    pointer-events:auto;
    transform:translateY(0);
    border-color:rgba(34,211,238,.42);
  }

  .nav-list{
    display:grid;
    grid-template-columns:repeat(2,minmax(0,1fr));
    gap:.4rem;
  }

  .nav-link{
    padding:.82rem .9rem;
    border:1px solid rgba(42,55,102,.75);
    border-radius:14px;
    background:rgba(245,247,255,.03);
    font-size:.94rem;
    font-weight:600;
  }

  .nav-link[aria-current="page"]{
    border-color:rgba(34,211,238,.55);
    background:rgba(34,211,238,.11);
  }

  .nav-link[aria-current="page"]::after{display:none;}

  .footer-top{grid-template-columns:minmax(0,1fr);}
}

@media (max-width:860px){
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .footer-col--contact{grid-column:1 / -1;}
}

@media (max-width:900px){
  .grid{grid-template-columns:repeat(6,minmax(0,1fr));}
}

@media (max-width:600px){
  .grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .footer-grid{grid-template-columns:minmax(0,1fr);}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .nav-list{grid-template-columns:minmax(0,1fr);}
  .btn{padding:.72rem 1.15rem;font-size:.88rem;}
}

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