:root{
  --ink:#0A0E2A;
  --board:#141A44;
  --lava:#FF5A2A;
  --ember:#E63A2E;
  --lake:#2FD3C0;
  --snow:#F5F7FF;
  --mist:#9AA3C7;
  --gold:#FFB454;
  --edge:#2A3266;
  --night:#050716;

  --rail-w:108px;
  --head-h:64px;
  --wrap:1440px;
  --gutter:clamp(20px,4vw,64px);
  --ease:cubic-bezier(.22,.61,.36,1);

  --font-display:"Barlow Condensed","Oswald","Noto Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
  --font-serif:"Noto Serif SC","Songti SC",Georgia,serif;
  --font-body:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
  --font-mono:"JetBrains Mono","IBM Plex Mono",ui-monospace,SFMono-Regular,Menlo,monospace;
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  padding-inline-start:0;
  padding-block-start:0;
  min-height:100vh;
  background-color:var(--ink);
  background-image:
    linear-gradient(to right,rgba(42,50,102,.32) 1px,transparent 1px),
    linear-gradient(to bottom,rgba(42,50,102,.32) 1px,transparent 1px),
    radial-gradient(115% 80% at 12% -8%,rgba(47,211,192,.10),transparent 55%),
    radial-gradient(90% 70% at 102% 2%,rgba(255,90,42,.09),transparent 58%);
  background-size:96px 96px,96px 96px,100% 100%,100% 100%;
  color:var(--snow);
  font-family:var(--font-body);
  font-size:1rem;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
img,svg,video{max-width:100%;height:auto;display:block;}
button{font:inherit;color:inherit;}
a{color:inherit;}
h1,h2,h3,h4{
  margin:0;
  font-family:var(--font-display);
  font-weight:700;
  letter-spacing:-.02em;
  line-height:1.08;
}
p{margin:0 0 1em;}
p:last-child{margin-bottom:0;}
:focus-visible{outline:2px solid var(--lake);outline-offset:3px;}
::selection{background:var(--lava);color:var(--night);}

.sr-only{
  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:10px;left:16px;z-index:300;
  padding:.7rem 1.1rem;
  background:var(--snow);color:var(--night);
  font-family:var(--font-mono);font-size:.8125rem;letter-spacing:.06em;
  text-decoration:none;border:1px solid var(--night);
  transform:translateY(-180%);
  transition:transform .22s var(--ease),box-shadow .22s var(--ease);
}
.skip-link:focus{transform:none;box-shadow:0 10px 30px rgba(5,7,22,.7);}

/* ---------- header : side index rail ---------- */
.site-header{
  position:fixed;
  inset-block:0;
  inset-inline-start:0;
  width:var(--rail-w);
  z-index:100;
  display:flex;
  flex-direction:column;
  align-items:stretch;
  background:linear-gradient(180deg,#0C1139 0%,#080B24 58%,var(--night) 100%);
  border-inline-end:1px solid var(--edge);
  color:var(--snow);
}
.header__brand{
  padding:18px 10px 14px;
  border-bottom:1px solid var(--edge);
  display:flex;
  justify-content:center;
  flex:0 0 auto;
}
.brand{
  display:flex;
  flex-direction:column;
  align-items:center;
  gap:12px;
  text-decoration:none;
  color:inherit;
  min-width:44px;
}
.brand__mark{
  width:34px;height:34px;
  display:grid;place-items:center;
  font-family:var(--font-display);
  font-size:1.125rem;font-weight:700;line-height:1;
  color:var(--night);
  background:linear-gradient(135deg,var(--gold),var(--lava));
  clip-path:polygon(0 0,100% 0,100% 72%,72% 100%,0 100%);
}
.brand__name{
  writing-mode:vertical-rl;
  text-orientation:upright;
  font-family:var(--font-display);
  font-size:.9375rem;
  font-weight:700;
  letter-spacing:.14em;
  line-height:1;
  transition:color .22s var(--ease);
}
.brand:hover .brand__name,.brand:focus-visible .brand__name{color:var(--gold);}
.brand__tag{display:none;}

.nav-toggle{display:none;}

.site-nav{
  flex:1 1 auto;
  min-height:0;
  display:flex;
  flex-direction:column;
  overflow-y:auto;
  overscroll-behavior:contain;
}
.site-nav__list{
  list-style:none;
  margin:0;
  padding:0;
  flex:0 0 auto;
}
.site-nav__item{border-bottom:1px solid rgba(42,50,102,.65);}
.site-nav__link{
  position:relative;
  display:flex;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  gap:9px;
  min-height:84px;
  padding:12px 6px;
  text-decoration:none;
  color:var(--mist);
  transition:color .22s var(--ease),background-color .22s var(--ease);
}
.site-nav__num{
  font-family:var(--font-mono);
  font-variant-numeric:tabular-nums;
  font-size:.625rem;
  letter-spacing:.14em;
  color:var(--lava);
  line-height:1;
}
.site-nav__label{
  writing-mode:vertical-rl;
  text-orientation:upright;
  font-size:.6875rem;
  letter-spacing:.16em;
  line-height:1;
}
.site-nav__link::before{
  content:"";
  position:absolute;
  inset-inline-end:0;
  top:16%;bottom:16%;
  width:2px;
  background:var(--lava);
  transform:scaleY(0);
  transform-origin:top;
  transition:transform .24s var(--ease);
}
.site-nav__link:hover{color:var(--snow);background:rgba(20,26,68,.88);}
.site-nav__link:hover::before{transform:scaleY(1);}
.site-nav__link[aria-current="page"]{color:var(--snow);background:rgba(20,26,68,.95);}
.site-nav__link[aria-current="page"] .site-nav__num{color:var(--gold);}
.site-nav__link[aria-current="page"]::before{transform:scaleY(1);background:var(--gold);}
.site-nav__foot{
  flex:0 0 auto;
  margin-top:auto;
  padding:16px 10px 20px;
  border-top:1px solid var(--edge);
}
.site-nav__cta{
  width:100%;
  padding:.72rem .4rem;
  font-size:.6875rem;
  letter-spacing:.04em;
}

.header__progress{
  position:absolute;
  inset-block:0;
  inset-inline-end:0;
  width:2px;
  background:rgba(42,50,102,.5);
  pointer-events:none;
}
.header__progress-bar{
  display:block;
  width:100%;height:100%;
  transform-origin:top;
  transform:scaleY(var(--progress,0));
  background:linear-gradient(180deg,var(--gold),var(--lava) 55%,var(--ember));
}

/* ---------- footer ---------- */
.site-footer{
  position:relative;
  background:var(--night);
  border-top:1px solid var(--edge);
  padding:clamp(48px,7vw,96px) var(--gutter) 26px;
  color:var(--mist);
}
.site-footer::before{
  content:"";
  position:absolute;
  inset-block-start:0;inset-inline:0;
  height:2px;
  background:linear-gradient(90deg,var(--lava),var(--gold) 38%,var(--lake) 88%);
}
.footer__inner{
  max-width:var(--wrap);
  margin-inline:auto;
  display:grid;
  gap:clamp(32px,5vw,64px);
}
.footer__lead{
  display:grid;
  gap:14px;
  padding-bottom:clamp(24px,4vw,44px);
  border-bottom:1px solid var(--edge);
}
.footer__wordmark{
  margin:0;
  font-family:var(--font-display);
  font-size:clamp(2.25rem,6vw,4.5rem);
  font-weight:700;
  letter-spacing:-.02em;
  line-height:.95;
  color:var(--snow);
}
.footer__mark-link{
  text-decoration:none;
  color:inherit;
  display:inline-block;
  transition:color .22s var(--ease);
}
.footer__mark-link:hover,.footer__mark-link:focus-visible{color:var(--gold);}
.footer__brand-line{
  margin:0;
  font-family:var(--font-serif);
  font-size:clamp(1rem,1.8vw,1.375rem);
  line-height:1.6;
  color:var(--snow);
}
.footer__cols{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:clamp(24px,4vw,56px);
}
.footer__col{min-width:0;}
.footer__label{
  margin:0 0 16px;
  font-family:var(--font-mono);
  font-size:.6875rem;
  font-weight:400;
  letter-spacing:.2em;
  color:var(--lake);
}
.footer__list{
  list-style:none;
  margin:0;
  padding:0;
  display:grid;
  gap:2px;
}
.footer__link{
  display:inline-flex;
  align-items:center;
  min-height:40px;
  color:var(--mist);
  text-decoration:none;
  font-size:.9375rem;
  transition:color .2s var(--ease),padding-inline-start .2s var(--ease);
}
.footer__link:hover,.footer__link:focus-visible{color:var(--snow);padding-inline-start:6px;}
.footer__note{
  margin:0;
  max-width:38ch;
  font-size:.875rem;
  line-height:1.9;
  color:var(--mist);
}
.footer__note--sm{
  margin-top:16px;
  font-size:.75rem;
  line-height:1.85;
  color:rgba(154,163,199,.86);
}
.footer__mobile-card{
  display:grid;
  gap:8px;
  margin-top:20px;
  padding:16px 18px;
  border:1px solid var(--edge);
  background:linear-gradient(135deg,rgba(47,211,192,.10),rgba(255,90,42,.08));
  text-decoration:none;
  color:var(--snow);
  transition:border-color .22s var(--ease),background-color .22s var(--ease);
}
.footer__mobile-card:hover,.footer__mobile-card:focus-visible{
  border-color:rgba(47,211,192,.6);
  background:linear-gradient(135deg,rgba(47,211,192,.16),rgba(255,90,42,.12));
}
.footer__mobile-title{
  font-family:var(--font-display);
  font-size:1.125rem;
  letter-spacing:.02em;
}
.footer__mobile-desc{
  font-size:.8125rem;
  line-height:1.8;
  color:var(--mist);
}
.footer__address{
  font-style:normal;
  display:grid;
  gap:6px;
  font-family:var(--font-mono);
  font-size:.8125rem;
  line-height:1.7;
  color:var(--snow);
  overflow-wrap:anywhere;
}
.footer__address p{margin:0;}
.footer__addr-key{
  display:inline-block;
  min-width:3.4em;
  font-family:var(--font-body);
  font-size:.75rem;
  letter-spacing:.14em;
  color:var(--mist);
}
.footer__bottom{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:14px 28px;
  padding-top:clamp(20px,3vw,28px);
  border-top:1px solid var(--edge);
}
.footer__legal{
  margin:0;
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:6px 12px;
  font-size:.8125rem;
}
.footer__legal-link{
  display:inline-flex;
  align-items:center;
  min-height:44px;
  color:var(--mist);
  text-decoration:none;
  transition:color .2s var(--ease);
}
.footer__legal-link:hover,.footer__legal-link:focus-visible{color:var(--gold);}
.footer__sep{color:var(--edge);}
.footer__meta{
  margin:0;
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px 20px;
  font-family:var(--font-mono);
  font-size:.75rem;
  letter-spacing:.06em;
  color:var(--mist);
}
.footer__icp{color:var(--snow);}
.footer__copy{color:var(--mist);}

/* ---------- shared building blocks ---------- */
.container{
  width:100%;
  max-width:var(--wrap);
  margin-inline:auto;
  padding-inline:var(--gutter);
}
.section{padding-block:clamp(48px,7vw,96px);}
.eyebrow{
  margin:0 0 12px;
  font-family:var(--font-mono);
  font-size:.6875rem;
  letter-spacing:.2em;
  color:var(--lava);
}
.display-num{
  font-family:var(--font-mono);
  font-variant-numeric:tabular-nums;
  font-size:clamp(3rem,10vw,7.5rem);
  line-height:.9;
  letter-spacing:-.04em;
  color:var(--snow);
}
.status{
  display:inline-flex;
  align-items:center;
  gap:.55em;
  padding:.35em .7em;
  border:1px solid var(--edge);
  font-family:var(--font-mono);
  font-size:.6875rem;
  letter-spacing:.12em;
  color:var(--mist);
  white-space:nowrap;
}
.status::before{content:"";width:6px;height:6px;background:currentColor;flex:0 0 auto;}
.status--live{color:var(--ember);border-color:rgba(230,58,46,.45);}
.status--done{color:var(--lake);border-color:rgba(47,211,192,.40);}
.status--next{color:var(--gold);border-color:rgba(255,180,84,.40);}

.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:.5em;
  min-height:44px;
  padding:.75rem 1.35rem;
  border:1px solid var(--edge);
  background:transparent;
  color:var(--snow);
  font-family:var(--font-mono);
  font-size:.8125rem;
  letter-spacing:.08em;
  text-decoration:none;
  cursor:pointer;
  transition:color .22s var(--ease),border-color .22s var(--ease),background-color .22s var(--ease),transform .22s var(--ease);
}
.btn:hover,.btn:focus-visible{border-color:var(--lake);color:var(--snow);}
.btn--primary{
  border-color:transparent;
  background:linear-gradient(120deg,var(--gold),var(--lava) 55%,var(--ember));
  color:#12060A;
  font-weight:700;
}
.btn--primary:hover,.btn--primary:focus-visible{
  color:#12060A;
  border-color:transparent;
  transform:translateY(-1px);
}
.btn--ghost{background:rgba(20,26,68,.6);}

.breadcrumb{
  margin:0 0 28px;
  font-family:var(--font-mono);
  font-size:.6875rem;
  letter-spacing:.1em;
  color:var(--mist);
}
.breadcrumb ol{
  list-style:none;
  margin:0;padding:0;
  display:flex;
  flex-wrap:wrap;
  gap:8px;
}
.breadcrumb li{display:inline-flex;align-items:center;}
.breadcrumb li::after{content:"/";margin-inline-start:8px;color:var(--edge);}
.breadcrumb li:last-child::after{content:none;}
.breadcrumb a{
  display:inline-flex;
  align-items:center;
  min-height:32px;
  color:var(--mist);
  text-decoration:none;
  transition:color .2s var(--ease);
}
.breadcrumb a:hover,.breadcrumb a:focus-visible{color:var(--lake);}
.breadcrumb [aria-current="page"]{color:var(--snow);}

.grid{display:grid;gap:clamp(20px,3vw,40px);}
.grid--board{grid-template-columns:repeat(12,minmax(0,1fr));}

.prose{max-width:68ch;}
.prose p,.prose li{font-size:1rem;line-height:1.75;}
.prose p{margin:0 0 1.1em;}
.prose h2{font-size:clamp(1.5rem,2.6vw,2rem);margin:2em 0 .6em;}
.prose h3{font-size:1.25rem;margin:1.8em 0 .5em;}
.prose ul,.prose ol{margin:0 0 1.1em;padding-inline-start:1.4em;}
.prose li{margin:0 0 .4em;}
.prose a{color:var(--lake);text-underline-offset:3px;}

.media{
  position:relative;
  display:block;
  overflow:hidden;
  isolation:isolate;
  background:linear-gradient(155deg,var(--board) 0%,#0B1033 58%,var(--ink) 100%);
  border:1px solid var(--edge);
}
.media::before{
  content:"";
  position:absolute;inset:0;
  background:radial-gradient(120% 90% at 85% 8%,rgba(255,90,42,.18),transparent 55%);
  z-index:0;
}
.media::after{
  content:"";
  position:absolute;inset:0;
  background:linear-gradient(115deg,rgba(47,211,192,.14),transparent 46%);
  z-index:0;
}
.media__img{
  position:relative;
  z-index:1;
  display:block;
  width:100%;height:100%;
  object-fit:cover;
}
.media__cap{
  position:absolute;
  inset-inline:0;inset-block-end:0;
  z-index:2;
  padding:10px 12px;
  font-family:var(--font-mono);
  font-size:.6875rem;
  letter-spacing:.1em;
  color:var(--snow);
  background:linear-gradient(0deg,rgba(5,7,22,.92),transparent);
}
.media--slant{clip-path:polygon(0 0,100% 0,100% 86%,0 100%);}
.media--16x9{aspect-ratio:16/9;}
.media--4x3{aspect-ratio:4/3;}
.media--4x5{aspect-ratio:4/5;}

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

/* ---------- desktop offset ---------- */
@media (min-width:1024px){
  body{padding-inline-start:var(--rail-w);}
  .skip-link{left:calc(var(--rail-w) + 16px);}
}

/* ---------- tablet & mobile ---------- */
@media (max-width:1023px){
  html{scroll-padding-top:calc(var(--head-h) + 16px);}
  body{padding-block-start:var(--head-h);}
  .site-header{
    inset:0 0 auto 0;
    width:auto;
    height:var(--head-h);
    flex-direction:row;
    align-items:center;
    gap:12px;
    padding:0 14px;
    border-inline-end:0;
    border-bottom:1px solid var(--edge);
    background:linear-gradient(100deg,#0C1139,#080B24 58%,#12102E);
  }
  .header__brand{
    flex:1 1 auto;
    min-width:0;
    padding:0;
    border:0;
    justify-content:flex-start;
  }
  .brand{flex-direction:row;align-items:center;gap:10px;}
  .brand__mark{width:28px;height:28px;font-size:.9375rem;}
  .brand__name{
    writing-mode:horizontal-tb;
    font-size:1rem;
    letter-spacing:.05em;
    white-space:nowrap;
  }
  .brand__tag{
    display:block;
    padding-inline-start:10px;
    border-inline-start:1px solid var(--edge);
    font-family:var(--font-mono);
    font-size:.625rem;
    letter-spacing:.12em;
    color:var(--lake);
    white-space:nowrap;
  }
  .nav-toggle{
    position:relative;
    z-index:95;
    display:inline-flex;
    align-items:center;
    gap:8px;
    min-height:44px;
    min-width:44px;
    padding:.5rem .8rem;
    border:1px solid var(--edge);
    background:rgba(20,26,68,.9);
    color:var(--snow);
    cursor:pointer;
  }
  .nav-toggle__bars{display:inline-flex;flex-direction:column;gap:4px;width:16px;}
  .nav-toggle__bars span{
    display:block;height:1.5px;width:100%;
    background:var(--lava);
    transition:transform .25s var(--ease),opacity .2s var(--ease);
  }
  .nav-toggle__text{
    font-family:var(--font-mono);
    font-size:.6875rem;
    letter-spacing:.14em;
  }
  .site-header[data-open] .nav-toggle__bars span:first-child{transform:translateY(2.75px) rotate(45deg);}
  .site-header[data-open] .nav-toggle__bars span:last-child{transform:translateY(-2.75px) rotate(-45deg);}
  .site-header[data-open] .nav-toggle{border-color:rgba(255,90,42,.6);}

  .site-nav{
    position:fixed;
    inset-block:0;
    inset-inline-start:0;
    width:min(82vw,340px);
    z-index:90;
    padding:calc(var(--head-h) + 20px) 18px 28px;
    background:linear-gradient(180deg,#0B1035 0%,#070A1F 62%,var(--night) 100%);
    border-inline-end:1px solid var(--edge);
    transform:translateX(-102%);
    visibility:hidden;
    transition:transform .34s var(--ease),visibility .34s;
  }
  .site-header[data-open] .site-nav{
    transform:translateX(0);
    visibility:visible;
    box-shadow:30px 0 80px rgba(0,0,0,.62);
    transition:transform .34s var(--ease),visibility 0s;
  }
  .site-nav__item{border-bottom:1px solid rgba(42,50,102,.6);}
  .site-nav__link{
    flex-direction:row;
    align-items:center;
    justify-content:flex-start;
    gap:16px;
    min-height:56px;
    padding:12px 6px;
  }
  .site-nav__num{font-size:.75rem;min-width:2.2ch;}
  .site-nav__label{
    writing-mode:horizontal-tb;
    font-size:1rem;
    letter-spacing:.04em;
  }
  .site-nav__link::before{
    inset-inline-end:auto;
    inset-inline-start:0;
    top:22%;bottom:22%;
    width:2px;
  }
  .site-nav__foot{padding:20px 0 0;}
  .site-nav__cta{width:100%;min-height:48px;font-size:.8125rem;}

  .header__progress{
    inset-block:auto;
    inset-inline:0;
    inset-block-end:-1px;
    width:auto;
    height:2px;
  }
  .header__progress-bar{
    transform-origin:left;
    transform:scaleX(var(--progress,0));
  }

  .footer__cols{grid-template-columns:repeat(2,minmax(0,1fr));}
  .footer__bottom{flex-direction:column;align-items:flex-start;}
}

@media (max-width:640px){
  .footer__cols{grid-template-columns:1fr;}
  .brand__tag{display:none;}
  .footer__wordmark{font-size:2.25rem;}
  .footer__note{max-width:none;}
}

@media (max-width:400px){
  .nav-toggle__text{display:none;}
}

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