*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;text-size-adjust:100%}
body,h1,h2,h3,h4,p,ul,ol,figure,blockquote{margin:0}
ul,ol{padding:0;list-style:none}
img,svg{display:block;max-width:100%}
button{font:inherit;color:inherit;background:none;border:0}
a{color:inherit}

:root{
  --space:#07132D;
  --night:#101F43;
  --violet:#2A1A5E;
  --violet-soft:#B7A4FF;
  --cyan:#35F2D6;
  --amber:#FFC857;
  --moon:#F8F4E8;
  --mist:#B9C6E8;
  --alert:#FF6B4A;
  --ink:#16100D;

  --font-sans:"Noto Sans SC","Source Han Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  --font-mono:"JetBrains Mono","IBM Plex Mono","SFMono-Regular",ui-monospace,Menlo,Consolas,monospace;

  --shell-w:1220px;
  --radius-pill:999px;
  --radius-md:18px;
  --radius-sm:12px;
  --shadow-hard:5px 5px 0 var(--ink);
  --shadow-hard-sm:3px 3px 0 var(--ink);
  --shadow-lift:0 24px 48px -28px rgba(0,0,0,.95);
  --header-h:88px;
  --ease:cubic-bezier(.22,.61,.36,1);
}

html{scroll-padding-top:calc(var(--header-h) + 20px)}
@media (prefers-reduced-motion:no-preference){
  html{scroll-behavior:smooth}
}

body{
  min-height:100vh;
  padding-top:calc(var(--header-h) + 16px);
  font-family:var(--font-sans);
  font-size:17px;
  line-height:1.7;
  color:var(--moon);
  background-color:var(--space);
  background-image:
    radial-gradient(1.6px 1.6px at 32px 44px,rgba(248,244,232,.55) 50%,transparent 51%),
    radial-gradient(1.2px 1.2px at 148px 112px,rgba(183,164,255,.5) 50%,transparent 51%),
    radial-gradient(1px 1px at 214px 36px,rgba(53,242,214,.42) 50%,transparent 51%),
    radial-gradient(circle at 82% -8%,rgba(42,26,94,.95),transparent 58%),
    radial-gradient(circle at 2% 6%,rgba(53,242,214,.10),transparent 46%);
  background-size:260px 260px,260px 260px,260px 260px,cover,cover;
  background-repeat:repeat,repeat,repeat,no-repeat,no-repeat;
  -webkit-font-smoothing:antialiased;
}

h1,h2,h3,h4{line-height:1.2;font-weight:900;letter-spacing:-.01em}
p{max-width:68ch}

::selection{background:var(--amber);color:var(--ink)}

:focus-visible{outline:3px solid var(--cyan);outline-offset:3px;border-radius:4px}

/* ---------- skip link ---------- */
.skip-link{
  position:fixed;
  top:10px;left:10px;
  z-index:200;
  padding:10px 20px;
  transform:translateY(-180%);
  border:2px solid var(--ink);
  border-radius:var(--radius-pill);
  background:var(--amber);
  color:var(--ink);
  font-weight:800;
  font-size:.9rem;
  text-decoration:none;
  box-shadow:var(--shadow-hard);
  transition:transform .22s var(--ease);
}
.skip-link:focus{transform:translateY(0)}

/* ---------- header ---------- */
.site-header{
  position:fixed;
  inset:0 0 auto 0;
  z-index:80;
  padding:12px 20px 0;
  pointer-events:none;
}
.header-progress{
  position:absolute;
  inset:0 0 auto 0;
  height:3px;
  background:rgba(183,164,255,.16);
}
.header-progress__bar{
  display:block;
  width:0;
  height:100%;
  background:linear-gradient(90deg,var(--cyan),var(--violet-soft) 60%,var(--amber));
  box-shadow:0 0 14px rgba(53,242,214,.7);
  transition:width .12s linear;
}
.header-capsule{
  position:relative;
  pointer-events:auto;
  width:min(100%,var(--shell-w));
  margin:0 auto;
  display:flex;
  align-items:center;
  gap:16px;
  padding:10px 12px 10px 16px;
  border:2px solid var(--ink);
  border-radius:var(--radius-pill);
  background:linear-gradient(120deg,rgba(16,31,67,.95),rgba(42,26,94,.92));
  box-shadow:0 14px 34px -20px rgba(0,0,0,.95),inset 0 1px 0 rgba(248,244,232,.12);
  backdrop-filter:blur(8px);
  transition:padding .3s var(--ease),box-shadow .3s var(--ease),background .3s var(--ease);
}
.site-header[data-condensed] .header-capsule{
  padding:6px 10px 6px 14px;
  background:linear-gradient(120deg,rgba(10,22,48,.97),rgba(32,20,72,.95));
  box-shadow:0 10px 26px -18px rgba(0,0,0,1),inset 0 1px 0 rgba(248,244,232,.08);
}
.site-header[data-condensed] .brand__sub{opacity:0;transform:translateY(-4px)}
.site-header[data-condensed] .brand__mark{transform:scale(.88)}

.brand{
  display:inline-flex;
  align-items:center;
  gap:11px;
  flex:0 0 auto;
  text-decoration:none;
  color:var(--moon);
}
.brand__mark{
  position:relative;
  width:30px;height:30px;
  flex:0 0 auto;
  border:2px solid var(--cyan);
  border-radius:50%;
  background:radial-gradient(circle at 72% 28%,var(--amber),var(--violet) 72%);
  box-shadow:0 0 0 4px rgba(53,242,214,.08),0 0 18px rgba(53,242,214,.35);
  transition:transform .3s var(--ease);
}
.brand__mark::after{
  content:"";
  position:absolute;
  inset:-7px -11px;
  border:1.5px solid rgba(183,164,255,.6);
  border-radius:50%;
  transform:rotate(-22deg);
  animation:orbit-drift 40s linear infinite;
}
.brand__text{display:flex;flex-direction:column;line-height:1.05}
.brand__name{font-weight:900;font-size:1.06rem;letter-spacing:.06em;white-space:nowrap}
.brand__sub{
  font-family:var(--font-mono);
  font-size:.56rem;
  letter-spacing:.3em;
  color:var(--violet-soft);
  transition:opacity .3s var(--ease),transform .3s var(--ease);
}

.nav{display:flex;margin-inline:auto}
.nav__list{display:flex;align-items:center;gap:2px;flex-wrap:wrap}
.nav__link{
  display:block;
  padding:9px 13px;
  border:1px solid transparent;
  border-radius:var(--radius-pill);
  color:var(--mist);
  font-size:.92rem;
  font-weight:500;
  text-decoration:none;
  white-space:nowrap;
  transition:color .2s var(--ease),background .2s var(--ease),border-color .2s var(--ease),transform .2s var(--ease);
}
.nav__link:hover{color:var(--moon);background:rgba(53,242,214,.1);border-color:rgba(53,242,214,.38);transform:translateY(-1px)}
.nav__link[aria-current="page"]{
  color:var(--space);
  background:var(--amber);
  border-color:var(--ink);
  font-weight:800;
  box-shadow:var(--shadow-hard-sm);
}

.header-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.pulse-status{
  display:flex;
  align-items:center;
  gap:7px;
  padding:6px 13px;
  border:1px solid rgba(53,242,214,.4);
  border-radius:var(--radius-pill);
  background:rgba(53,242,214,.08);
  font-size:.7rem;
  letter-spacing:.08em;
  color:var(--mist);
  white-space:nowrap;
}
.pulse-status__dot{
  width:8px;height:8px;
  flex:0 0 auto;
  border-radius:50%;
  background:var(--cyan);
  animation:pulse-dot 2.6s var(--ease) infinite;
}
.pulse-status__label{color:var(--mist)}
.pulse-status__value{font-family:var(--font-mono);font-weight:700;color:var(--cyan);letter-spacing:.04em}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:11px 20px;
  border:2px solid var(--ink);
  border-radius:var(--radius-pill);
  font-family:var(--font-sans);
  font-size:.92rem;
  font-weight:800;
  letter-spacing:.03em;
  text-decoration:none;
  cursor:pointer;
  transition:transform .18s var(--ease),box-shadow .18s var(--ease),background .18s var(--ease),color .18s var(--ease);
}
.btn--primary{background:var(--cyan);color:var(--ink);box-shadow:4px 4px 0 var(--ink)}
.btn--primary:hover{transform:translate(-1px,-2px);box-shadow:6px 7px 0 var(--ink);background:#5ffbe2}
.btn--ghost{background:transparent;color:var(--moon);border-color:var(--violet-soft);box-shadow:none}
.btn--ghost:hover{background:rgba(183,164,255,.14);transform:translateY(-1px)}
.btn--sm{padding:8px 15px;font-size:.82rem;box-shadow:3px 3px 0 var(--ink)}
.btn--sm:hover{box-shadow:5px 5px 0 var(--ink)}
.btn--block{display:flex;width:100%}
.btn:active{transform:translate(1px,1px);box-shadow:2px 2px 0 var(--ink)}

/* ---------- nav toggle ---------- */
.nav-toggle{
  display:none;
  align-items:center;
  gap:8px;
  padding:8px 14px;
  border:2px solid var(--ink);
  border-radius:var(--radius-pill);
  background:var(--violet-soft);
  color:var(--ink);
  font-size:.78rem;
  font-weight:800;
  letter-spacing:.1em;
  cursor:pointer;
  box-shadow:var(--shadow-hard-sm);
  transition:transform .18s var(--ease),background .18s var(--ease);
}
.nav-toggle:hover{transform:translateY(-1px);background:#c9baff}
.nav-toggle__box{display:flex;flex-direction:column;justify-content:center;gap:3px;width:16px}
.nav-toggle__bar{
  display:block;
  height:2px;
  width:100%;
  border-radius:2px;
  background:var(--ink);
  transition:transform .25s var(--ease),opacity .18s var(--ease);
}
.nav-toggle[aria-expanded="true"] .nav-toggle__bar:nth-child(1){transform:translateY(5px) 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(-5px) rotate(-45deg)}

/* ---------- footer ---------- */
.site-footer{
  position:relative;
  margin-top:96px;
  overflow:hidden;
  border-top:2px solid var(--ink);
  background:linear-gradient(180deg,rgba(42,26,94,.96),rgba(7,19,45,1) 64%);
  color:var(--moon);
}
.site-footer::before{
  content:"";
  position:absolute;
  inset:auto -20% -70% -20%;
  height:340px;
  background:radial-gradient(closest-side,rgba(183,164,255,.22),transparent 72%);
  pointer-events:none;
}
.site-footer::after{
  content:"";
  position:absolute;
  top:0;left:0;right:0;
  height:1px;
  background:linear-gradient(90deg,transparent,var(--cyan),transparent);
  opacity:.6;
}
.footer-inner{
  position:relative;
  z-index:1;
  width:min(100% - 40px,var(--shell-w));
  margin-inline:auto;
  padding:64px 0 26px;
}
.footer-grid{display:grid;grid-template-columns:1.45fr .85fr .85fr 1.3fr;gap:34px}
.footer-col{min-width:0}
.brand--footer{margin-bottom:16px}
.brand--footer .brand__name{font-size:1.15rem}
.footer-brand__line{
  font-size:1rem;
  font-weight:700;
  color:var(--amber);
  letter-spacing:.02em;
  margin-bottom:10px;
}
.footer-brand__meta{font-size:.86rem;line-height:1.75;color:var(--mist);max-width:34ch}
.footer-col__title{
  position:relative;
  margin-bottom:16px;
  padding-bottom:9px;
  font-size:.76rem;
  font-weight:800;
  letter-spacing:.22em;
  color:var(--violet-soft);
  border-bottom:1px dashed rgba(183,164,255,.35);
}
.footer-col__title::before{
  content:"";
  display:inline-block;
  width:7px;height:7px;
  margin-right:8px;
  vertical-align:2px;
  background:var(--amber);
  transform:rotate(45deg);
}
.footer-nav__list{display:flex;flex-direction:column;gap:9px}
.footer-link{
  display:inline-block;
  font-size:.92rem;
  color:var(--mist);
  text-decoration:none;
  border-bottom:1px solid transparent;
  transition:color .2s var(--ease),border-color .2s var(--ease),transform .2s var(--ease);
}
.footer-link:hover{color:var(--moon);border-bottom-color:var(--cyan);transform:translateX(2px)}
.contact-list{display:flex;flex-direction:column;gap:12px;margin-bottom:14px}
.contact-list__item{display:flex;flex-direction:column;gap:2px}
.contact-list__label{font-size:.66rem;letter-spacing:.2em;color:var(--violet-soft)}
.contact-list__value{
  font-family:var(--font-mono);
  font-size:.85rem;
  color:var(--moon);
  overflow-wrap:anywhere;
}
.contact-list__value--wrap{font-family:var(--font-sans);font-size:.88rem;line-height:1.6;color:var(--mist)}
.contact-note{
  padding-left:12px;
  border-left:2px solid var(--amber);
  font-size:.8rem;
  line-height:1.7;
  color:var(--mist);
  max-width:34ch;
}
.footer-bottom{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:10px 26px;
  margin-top:44px;
  padding-top:18px;
  border-top:1px dashed rgba(183,164,255,.3);
  font-size:.76rem;
  letter-spacing:.06em;
  color:var(--mist);
}
.footer-bottom__copy{font-family:var(--font-mono);color:var(--moon)}
.footer-bottom__icp{
  padding:4px 12px;
  border:1px solid rgba(183,164,255,.4);
  border-radius:var(--radius-pill);
  font-family:var(--font-mono);
}
.footer-bottom__deal{margin-left:auto}
.footer-bottom__link{color:var(--cyan);text-decoration:none;border-bottom:1px solid rgba(53,242,214,.5)}
.footer-bottom__link:hover{color:var(--amber);border-bottom-color:var(--amber)}

/* ---------- shared layout helpers ---------- */
.container{width:min(100% - 40px,var(--shell-w));margin-inline:auto}
.container--narrow{max-width:760px}
.section{padding-block:64px}
.section-head{display:flex;flex-wrap:wrap;align-items:flex-end;gap:12px 24px;margin-bottom:32px}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-family:var(--font-mono);
  font-size:.7rem;
  letter-spacing:.24em;
  text-transform:uppercase;
  color:var(--cyan);
}
.eyebrow::before{content:"";width:22px;height:2px;background:var(--cyan)}
.index-label{
  font-family:var(--font-mono);
  font-size:.7rem;
  letter-spacing:.2em;
  color:var(--violet-soft);
}
.tag{
  display:inline-block;
  padding:4px 11px;
  border:1px solid rgba(183,164,255,.5);
  border-radius:var(--radius-pill);
  background:rgba(183,164,255,.1);
  font-family:var(--font-mono);
  font-size:.68rem;
  letter-spacing:.14em;
  color:var(--violet-soft);
}
.numeric{font-family:var(--font-mono);font-variant-numeric:tabular-nums;font-weight:700;color:var(--amber)}
.divider{height:2px;border:0;margin-block:40px;background:linear-gradient(90deg,var(--amber),rgba(183,164,255,.3),transparent)}

.grid{display:grid;gap:22px}
.grid--2{grid-template-columns:repeat(2,minmax(0,1fr))}
.grid--3{grid-template-columns:repeat(3,minmax(0,1fr))}
.stack{display:flex;flex-direction:column;gap:16px}

.card{
  position:relative;
  padding:22px;
  border:2px solid var(--ink);
  border-radius:var(--radius-md);
  background:linear-gradient(150deg,rgba(16,31,67,.94),rgba(42,26,94,.72));
  box-shadow:var(--shadow-hard);
  transition:transform .22s var(--ease),box-shadow .22s var(--ease);
}
.card:hover{transform:translate(-2px,-3px);box-shadow:8px 9px 0 var(--ink)}
.card__title{font-size:1.12rem;font-weight:800;margin-bottom:8px;color:var(--moon)}
.card__text{font-size:.92rem;line-height:1.75;color:var(--mist)}
.card__meta{
  display:flex;
  flex-wrap:wrap;
  gap:8px 16px;
  margin-top:16px;
  padding-top:12px;
  border-top:1px dashed rgba(183,164,255,.28);
  font-family:var(--font-mono);
  font-size:.7rem;
  letter-spacing:.12em;
  color:var(--violet-soft);
}

.media{
  position:relative;
  overflow:hidden;
  aspect-ratio:16/10;
  border:2px solid var(--ink);
  border-radius:var(--radius-md);
  background:
    radial-gradient(circle at 76% 18%,rgba(255,200,87,.28),transparent 46%),
    radial-gradient(circle at 20% 84%,rgba(53,242,214,.22),transparent 52%),
    linear-gradient(160deg,var(--night),var(--violet));
  box-shadow:var(--shadow-hard);
}
.media__img{
  width:100%;
  height:100%;
  object-fit:cover;
  display:block;
}
.media--wide{aspect-ratio:21/9}
.media--tall{aspect-ratio:4/5}

.prose{max-width:68ch;font-size:1rem;line-height:1.85;color:var(--mist)}
.prose h2,.prose h3{color:var(--moon);margin-top:36px;margin-bottom:12px}
.prose p{margin-bottom:16px}
.prose a{color:var(--cyan);text-decoration:underline;text-underline-offset:3px}
.prose ul{list-style:disc;padding-left:20px;margin-bottom:16px}

.breadcrumb{font-size:.76rem;letter-spacing:.1em;color:var(--mist)}
.breadcrumb__list{display:flex;flex-wrap:wrap;align-items:center;gap:8px}
.breadcrumb__item{display:inline-flex;align-items:center;gap:8px}
.breadcrumb__link{color:var(--violet-soft);text-decoration:none;border-bottom:1px solid rgba(183,164,255,.4)}
.breadcrumb__link:hover{color:var(--moon);border-bottom-color:var(--cyan)}
.breadcrumb__sep{color:rgba(185,198,232,.5);font-family:var(--font-mono)}

[data-reveal]{
  opacity:0;
  transform:translateY(20px);
  transition:opacity .62s var(--ease),transform .62s var(--ease);
}
[data-reveal].is-visible{opacity:1;transform:none}

@keyframes pulse-dot{
  0%,100%{box-shadow:0 0 0 0 rgba(53,242,214,.6)}
  50%{box-shadow:0 0 0 7px rgba(53,242,214,0)}
}
@keyframes orbit-drift{
  from{transform:rotate(-22deg)}
  to{transform:rotate(338deg)}
}
@keyframes nav-in{
  from{opacity:0;transform:translateY(-8px)}
  to{opacity:1;transform:none}
}

/* ---------- responsive ---------- */
@media (max-width:1080px){
  .nav__link{padding:8px 10px;font-size:.86rem}
  .footer-grid{grid-template-columns:1.3fr .8fr .8fr 1.2fr;gap:26px}
}

@media (max-width:900px){
  :root{--header-h:80px}
  .site-header{padding:10px 14px 0}
  .header-capsule{gap:10px;padding:9px 10px 9px 13px}
  .nav{
    position:absolute;
    top:calc(100% + 10px);
    left:0;right:0;
    z-index:5;
    display:none;
    margin:0;
    padding:10px;
    border:2px solid var(--ink);
    border-radius:22px;
    background:linear-gradient(160deg,rgba(13,26,56,.99),rgba(42,26,94,.99));
    box-shadow:0 28px 54px -24px rgba(0,0,0,1);
  }
  .nav[data-open]{display:block;animation:nav-in .22s var(--ease) both}
  .nav__list{flex-direction:column;align-items:stretch;gap:4px}
  .nav__link{padding:13px 15px;font-size:1rem;border-radius:14px}
  .nav__link[aria-current="page"]{box-shadow:none}
  .nav-toggle{display:inline-flex}
  .header-actions{margin-left:auto}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px}
  .footer-col--brand{grid-column:1 / -1}
  .grid--3{grid-template-columns:repeat(2,minmax(0,1fr))}
}

@media (max-width:760px){
  body{font-size:16px}
  .pulse-status{display:none}
  .footer-inner{padding:52px 0 24px}
  .footer-bottom__deal{margin-left:0}
  .grid--2,.grid--3{grid-template-columns:1fr}
  .section{padding-block:48px}
}

@media (max-width:520px){
  :root{--header-h:74px}
  .brand__sub{display:none}
  .brand__mark{width:26px;height:26px}
  .brand__name{font-size:.98rem}
  .btn--sm{padding:7px 12px;font-size:.78rem}
  .nav-toggle__text{display:none}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px}
  .contact-list__value{font-size:.8rem}
}

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