*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;text-size-adjust:100%;scroll-behavior:smooth}
body,h1,h2,h3,h4,h5,p,figure,dl,dd,dt,ul,ol,li{margin:0;padding:0}
ul,ol{list-style:none}
img,svg,video{display:block;max-width:100%}
button{font:inherit;color:inherit;background:none;border:0;padding:0;cursor:pointer}
a{color:inherit;text-decoration:none}
table{border-collapse:collapse;width:100%}
[hidden]{display:none!important}

:root{
  --void:#05070E;
  --panel:#0B1220;
  --carbon:#1C2430;
  --steel:#2E3A4A;
  --cyan:#22F5E0;
  --orange:#FF6A1F;
  --violet:#8A6BFF;
  --white:#FFFFFF;
  --mist:#D6DFEA;
  --muted:#8C99AB;
  --glass:rgba(255,255,255,.06);
  --alert:#FF4D6D;
  --line:rgba(46,58,74,.85);
  --accent:var(--cyan);
  --accent-weak:rgba(34,245,224,.14);
  --font-sans:"Helvetica Neue","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  --font-narrow:"Arial Narrow","HelveticaNeue-CondensedBold","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
  --font-mono:ui-monospace,"SFMono-Regular",Menlo,Consolas,"Liberation Mono",monospace;
  --bar-h:64px;
  --rail-w:64px;
  --rail-open:264px;
  --maxw:1240px;
  --ease:cubic-bezier(.22,.61,.36,1);
  --step-13:13px;
  --step-15:15px;
  --step-16:16px;
  --step-22:22px;
  --step-32:32px;
  --step-52:52px;
  --step-84:84px;
}
body[data-theme="report"]{--accent:var(--orange);--accent-weak:rgba(255,106,31,.16)}
body[data-theme="data"]{--accent:var(--violet);--accent-weak:rgba(138,107,255,.18)}

body{
  min-height:100vh;
  padding-top:var(--bar-h);
  background-color:var(--void);
  background-image:
    linear-gradient(rgba(140,153,171,.05) 1px,transparent 1px),
    linear-gradient(90deg,rgba(140,153,171,.05) 1px,transparent 1px);
  background-size:96px 96px;
  color:var(--mist);
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.75;
  font-weight:400;
  -webkit-font-smoothing:antialiased;
}
@media (min-width:1024px){body{padding-left:var(--rail-w)}}

h1,h2,h3,h4{font-family:var(--font-narrow);font-weight:300;letter-spacing:-.01em;color:var(--white);line-height:1.14}
p{max-width:44em}
::selection{background:var(--accent);color:var(--void)}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:1px}

/* ---------- layout utilities ---------- */
.container{width:100%;max-width:var(--maxw);margin-inline:auto;padding-inline:20px}
@media (min-width:768px){.container{padding-inline:32px}}
.prose{max-width:36em;font-size:var(--step-16);line-height:1.75;color:var(--mist)}
.prose > * + *{margin-top:1.05em}
.prose h2{font-size:var(--step-32);margin-top:1.6em}
.prose h3{font-size:var(--step-22);margin-top:1.4em}
.prose ul{list-style:square;padding-left:1.25em}
.prose li + li{margin-top:.4em}
.prose a{color:var(--accent);border-bottom:2px solid currentColor}
.grid{display:grid;gap:24px;grid-template-columns:minmax(0,1fr)}
@media (min-width:640px){.grid--2{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (min-width:900px){
  .grid--7-5{grid-template-columns:minmax(0,7fr) minmax(0,5fr)}
  .grid--5-7{grid-template-columns:minmax(0,5fr) minmax(0,7fr)}
}
.hairline{border:0;border-top:1px solid var(--line);margin:0}

/* ---------- typography atoms ---------- */
.display{
  font-family:var(--font-narrow);
  font-weight:300;
  font-size:clamp(2.25rem,6.4vw,5.25rem);
  line-height:1.02;
  letter-spacing:-.02em;
  color:var(--white);
}
.section-index{
  display:inline-flex;align-items:center;gap:10px;
  font-size:12px;font-weight:600;letter-spacing:.24em;text-transform:uppercase;
  color:var(--accent);
}
.section-index::before{content:"";width:8px;height:8px;background:var(--accent);flex:none}
.num{
  font-family:var(--font-mono);
  font-variant-numeric:tabular-nums;
  font-weight:700;
  letter-spacing:.08em;
  color:var(--white);
}
.tag{
  display:inline-flex;align-items:center;gap:6px;
  font-size:12px;letter-spacing:.16em;text-transform:uppercase;
  color:var(--accent);border:1px solid var(--accent-weak);
  background:var(--accent-weak);padding:4px 10px;border-radius:var(--r,2px);
}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:38px;padding:0 16px;border-radius:2px;
  font-size:14px;font-weight:500;letter-spacing:.04em;white-space:nowrap;
  border:1px solid var(--steel);color:var(--mist);background:transparent;
  transition:border-color .2s var(--ease),color .2s var(--ease),background .2s var(--ease);
}
.btn:hover,.btn:focus-visible{border-color:var(--accent);color:var(--white);background:rgba(255,255,255,.04)}
.btn--accent{background:var(--accent);border-color:var(--accent);color:var(--void);font-weight:600}
.btn--accent:hover,.btn--accent:focus-visible{background:var(--white);border-color:var(--white);color:var(--void)}
.btn--ghost{background:var(--glass);border-color:var(--steel)}
.btn--ghost:hover,.btn--ghost:focus-visible{border-color:var(--accent)}

/* ---------- breadcrumb ---------- */
.breadcrumb{font-size:var(--step-13);color:var(--muted)}
.breadcrumb__list{display:flex;flex-wrap:wrap;align-items:center;gap:8px}
.breadcrumb__item{display:inline-flex;align-items:center;gap:8px}
.breadcrumb__item::after{content:"/";color:var(--steel)}
.breadcrumb__item:last-child::after{content:""}
.breadcrumb__link{color:var(--muted);transition:color .2s var(--ease)}
.breadcrumb__link:hover,.breadcrumb__link:focus-visible{color:var(--accent)}
.breadcrumb__current{color:var(--mist)}

/* ---------- cards ---------- */
.card{
  position:relative;
  background:var(--panel);
  border:1px solid var(--line);
  padding:20px;
  transition:border-color .25s var(--ease),background .25s var(--ease);
}
.card:hover,.card:focus-within{border-color:var(--accent)}
.card__title{font-family:var(--font-narrow);font-weight:400;font-size:var(--step-22);line-height:1.3;color:var(--white)}
.card__meta{font-size:var(--step-13);color:var(--muted)}
.card--tilt{clip-path:polygon(0 0,100% 0,100% calc(100% - 20px),calc(100% - 20px) 100%,0 100%)}

/* ---------- media frame base rules ---------- */
.media-frame{
  position:relative;display:block;overflow:hidden;
  aspect-ratio:var(--frame-ratio,16/9);
  background:var(--carbon);
  border:1px solid var(--line);
}
.media-frame > img,
.media-frame > svg,
.media-frame > picture > img{
  width:100%;height:100%;object-fit:cover;display:block;
}
.media-frame::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:linear-gradient(160deg,var(--accent-weak),transparent 62%);
}
.media-frame__tag{
  position:absolute;left:0;bottom:0;z-index:2;
  background:var(--accent);color:var(--void);
  font-size:12px;font-weight:600;letter-spacing:.18em;padding:6px 12px;
}
.media-frame--wide{--frame-ratio:21/9}
.media-frame--tall{--frame-ratio:3/4}
.media-frame--square{--frame-ratio:1/1}

/* ---------- reveal ---------- */
[data-reveal]{opacity:0;transform:translateY(12px);transition:opacity .5s var(--ease),transform .5s var(--ease)}
[data-reveal].is-visible{opacity:1;transform:none}

/* ---------- skip link ---------- */
.skip-link{
  position:fixed;left:-9999px;top:0;z-index:200;
  background:var(--accent);color:var(--void);
  font-size:14px;font-weight:600;letter-spacing:.04em;
  padding:10px 18px;border-radius:0 0 2px 0;
}
.skip-link:focus{left:0}

/* ---------- header ---------- */
.site-header{position:relative;z-index:80}

.command-bar{
  position:fixed;top:0;left:0;right:0;z-index:90;
  height:var(--bar-h);
  background:rgba(5,7,14,.78);
  backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);
  border-bottom:1px solid var(--line);
}
.command-bar__inner{
  height:100%;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding-inline:20px;
}
.command-bar__tools{display:flex;align-items:center;gap:10px}
@media (min-width:1024px){
  .command-bar{left:var(--rail-w)}
  .command-bar__inner{padding-inline:24px}
}

.brand{display:flex;align-items:center;gap:12px;min-width:0}
.brand__mark{
  flex:none;width:34px;height:34px;
  display:grid;place-items:center;
  border:1px solid var(--accent);color:var(--accent);
  font-family:var(--font-mono);font-size:12px;font-weight:700;letter-spacing:.04em;
  clip-path:polygon(0 0,100% 0,100% 68%,68% 100%,0 100%);
}
.brand__text{display:flex;flex-direction:column;line-height:1.25;min-width:0}
.brand__name{font-size:15px;font-weight:600;color:var(--white);letter-spacing:.02em;white-space:nowrap}
.brand__line{font-size:12px;letter-spacing:.14em;color:var(--muted);white-space:nowrap}
@media (max-width:719px){.brand__line{display:none}}

.login-dock{position:relative}
.login-dock__btn{position:relative}
.login-dock__pulse{
  width:6px;height:6px;border-radius:50%;background:var(--void);
  animation:dock-pulse 2.4s var(--ease) infinite;
}
@keyframes dock-pulse{
  0%{box-shadow:0 0 0 0 rgba(5,7,14,.55)}
  70%{box-shadow:0 0 0 8px rgba(5,7,14,0)}
  100%{box-shadow:0 0 0 0 rgba(5,7,14,0)}
}
.login-pop{
  position:absolute;top:calc(100% + 12px);right:0;z-index:95;
  width:min(286px,calc(100vw - 40px));
  display:flex;flex-direction:column;gap:10px;
  padding:18px;
  background:rgba(11,18,32,.96);
  backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);
  border:1px solid var(--steel);
  border-top:2px solid var(--accent);
  box-shadow:0 24px 60px rgba(0,0,0,.6);
}
.login-pop__title{font-size:13px;font-weight:600;letter-spacing:.16em;color:var(--accent);max-width:none}
.login-pop__text{font-size:13px;line-height:1.7;color:var(--muted);max-width:none}
.login-pop__links{display:flex;flex-wrap:wrap;gap:8px;padding-top:4px}
.login-pop__link{
  font-size:13px;font-weight:500;color:var(--mist);
  border:1px solid var(--steel);padding:6px 12px;border-radius:2px;
  transition:border-color .2s var(--ease),color .2s var(--ease);
}
.login-pop__link:hover,.login-pop__link:focus-visible{border-color:var(--accent);color:var(--white)}

.nav-toggle{
  display:inline-flex;align-items:center;gap:10px;
  height:38px;padding:0 14px;border:1px solid var(--steel);border-radius:2px;
  color:var(--mist);background:var(--glass);
  transition:border-color .2s var(--ease),color .2s var(--ease);
}
.nav-toggle:hover,.nav-toggle:focus-visible{border-color:var(--accent);color:var(--white)}
.nav-toggle__box{display:flex;flex-direction:column;gap:5px;width:16px}
.nav-toggle__bar{display:block;height:1px;width:100%;background:currentColor;transition:transform .25s var(--ease)}
.nav-toggle[aria-expanded="true"] .nav-toggle__bar:first-child{transform:translateY(3px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] .nav-toggle__bar:last-child{transform:translateY(-3px) rotate(-45deg)}
.nav-toggle__text{font-size:13px;letter-spacing:.12em}
@media (min-width:1024px){.nav-toggle{display:none}}

/* data rail / primary nav */
.primary-nav{
  position:fixed;top:0;left:0;bottom:0;z-index:92;
  width:var(--rail-w);
  display:flex;flex-direction:column;
  background:var(--panel);
  border-right:1px solid var(--line);
  overflow:hidden;
  transition:width .32s var(--ease),transform .32s var(--ease);
}
.primary-nav[data-expanded]{width:var(--rail-open);box-shadow:24px 0 60px rgba(0,0,0,.45)}
.primary-nav__head{
  flex:none;height:var(--bar-h);
  display:flex;align-items:center;
  border-bottom:1px solid var(--line);
}
.primary-nav__title{
  display:none;
  font-size:12px;font-weight:600;letter-spacing:.24em;text-transform:uppercase;
  color:var(--accent);line-height:var(--bar-h);padding-inline:22px;white-space:nowrap;
}
.rail-toggle{
  display:flex;align-items:center;gap:10px;
  width:100%;height:100%;padding-left:22px;
  color:var(--accent);
  transition:background .2s var(--ease);
}
.rail-toggle:hover,.rail-toggle:focus-visible{background:rgba(255,255,255,.04)}
.rail-toggle__bars{flex:none;display:flex;flex-direction:column;gap:4px;width:18px}
.rail-toggle__bar{display:block;height:1px;background:currentColor}
.rail-toggle__label{
  font-size:12px;font-weight:600;letter-spacing:.24em;text-transform:uppercase;
  white-space:nowrap;opacity:0;
  transition:opacity .2s var(--ease);
}
.primary-nav[data-expanded] .rail-toggle__label{opacity:1}

.primary-nav__list{flex:1 1 auto;overflow-y:auto;overflow-x:hidden;padding:14px 0}
.primary-nav__item{position:relative}
.nav-link{
  position:relative;display:flex;align-items:center;gap:12px;
  height:46px;padding-inline:22px;overflow:hidden;
  color:var(--muted);
  border-left:2px solid transparent;
  transition:color .2s var(--ease),background .2s var(--ease),border-color .2s var(--ease);
}
.nav-link__idx{
  flex:none;min-width:20px;
  font-family:var(--font-mono);font-size:12px;letter-spacing:.1em;
  color:var(--muted);transition:color .2s var(--ease);
}
.nav-link__label{
  flex:0 0 auto;font-size:15px;white-space:nowrap;
  opacity:0;transform:translateX(-4px);
  transition:opacity .2s var(--ease),transform .2s var(--ease);
}
.nav-link__dot{
  flex:none;width:6px;height:6px;margin-left:auto;border-radius:50%;
  background:var(--accent);opacity:0;transition:opacity .2s var(--ease);
}
.primary-nav[data-expanded] .nav-link__label,
.primary-nav[data-open] .nav-link__label{opacity:1;transform:none}
.nav-link:hover,.nav-link:focus-visible{
  color:var(--white);background:rgba(255,255,255,.04);border-left-color:var(--accent);
}
.nav-link:hover .nav-link__idx,.nav-link:focus-visible .nav-link__idx{color:var(--accent)}
.nav-link[aria-current="page"]{
  color:var(--white);border-left-color:var(--accent);
  background:linear-gradient(90deg,var(--accent-weak),transparent 88%);
}
.nav-link[aria-current="page"] .nav-link__idx{color:var(--accent)}
.nav-link[aria-current="page"] .nav-link__dot{opacity:1}

.primary-nav__foot{
  flex:none;display:flex;flex-direction:column;gap:4px;
  padding:16px 0 24px 22px;
  border-top:1px solid var(--line);
  overflow:hidden;
}
.primary-nav__foot-mark{
  font-family:var(--font-mono);font-size:11px;letter-spacing:.16em;color:var(--accent);
  white-space:nowrap;
}
.primary-nav__foot-text{
  font-size:12px;color:var(--muted);white-space:nowrap;
  opacity:0;transition:opacity .2s var(--ease);
}
.primary-nav[data-expanded] .primary-nav__foot-text{opacity:1}

.rail-scrim{
  position:fixed;inset:0;z-index:91;
  background:rgba(5,7,14,.74);
  backdrop-filter:blur(2px);-webkit-backdrop-filter:blur(2px);
}

@media (max-width:1023px){
  .primary-nav{
    width:288px;
    transform:translateX(-100%);
    box-shadow:24px 0 70px rgba(0,0,0,.65);
  }
  .primary-nav[data-expanded]{width:288px}
  .primary-nav[data-open]{transform:translateX(0)}
  .rail-toggle{display:none}
  .primary-nav__title{display:block}
  .nav-link__label{opacity:1;transform:none}
  .primary-nav__foot-text{opacity:1}
}

.scroll-progress{
  position:absolute;left:0;bottom:-1px;height:2px;width:0;
  background:linear-gradient(90deg,var(--cyan),var(--orange) 70%,var(--violet));
  transition:width .1s linear;
}

.to-top{
  position:fixed;right:20px;bottom:20px;z-index:88;
  display:flex;flex-direction:column;align-items:center;gap:2px;
  width:52px;padding:9px 0;
  background:rgba(11,18,32,.92);
  backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);
  border:1px solid var(--steel);
  color:var(--mist);
  clip-path:polygon(0 0,100% 0,100% 100%,18px 100%,0 calc(100% - 18px));
  transition:border-color .2s var(--ease),color .2s var(--ease);
}
.to-top:hover,.to-top:focus-visible{border-color:var(--accent);color:var(--white)}
.to-top__arrow{font-size:15px;line-height:1;color:var(--accent)}
.to-top__idx{font-family:var(--font-mono);font-size:11px;letter-spacing:.1em;color:var(--muted)}

/* ---------- footer ---------- */
.site-footer{
  position:relative;
  margin-top:80px;
  background:linear-gradient(180deg,rgba(11,18,32,.92),rgba(5,7,14,1));
  border-top:1px solid var(--line);
}
.footer__stripe{
  height:6px;
  background:
    linear-gradient(90deg,
      var(--cyan) 0 16%,transparent 16% 20%,
      var(--orange) 20% 38%,transparent 38% 42%,
      var(--violet) 42% 54%,transparent 54% 100%);
  opacity:.9;
}
.footer__inner{
  max-width:var(--maxw);margin-inline:auto;
  padding:52px 20px 36px;
  display:grid;grid-template-columns:minmax(0,1fr);gap:36px;
}
@media (min-width:768px){
  .footer__inner{grid-template-columns:repeat(2,minmax(0,1fr));padding-inline:32px}
  .footer__contact{grid-column:1/-1}
}
@media (min-width:1024px){
  .footer__inner{grid-template-columns:1.1fr 1.7fr 1.3fr;column-gap:48px;align-items:start}
  .footer__contact{grid-column:auto}
}

.footer__lead{display:flex;flex-direction:column;gap:10px;align-items:flex-start}
.footer__mark{
  width:38px;height:38px;display:grid;place-items:center;
  border:1px solid var(--accent);color:var(--accent);
  font-family:var(--font-mono);font-size:12px;font-weight:700;
  clip-path:polygon(0 0,100% 0,100% 68%,68% 100%,0 100%);
}
.footer__name{font-family:var(--font-narrow);font-size:var(--step-22);font-weight:400;color:var(--white);max-width:14em}
.footer__tag{font-size:var(--step-13);color:var(--muted);line-height:1.7;max-width:22em}

.footer__cols{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:28px 20px}
@media (min-width:640px){.footer__cols{grid-template-columns:repeat(3,minmax(0,1fr))}}
.footer__col{display:flex;flex-direction:column;gap:12px}
.footer__col-title{
  font-size:12px;font-weight:600;letter-spacing:.24em;text-transform:uppercase;
  color:var(--accent);max-width:none;
}
.footer__list{display:flex;flex-direction:column;gap:2px}
.footer__link{
  position:relative;display:inline-block;
  font-size:15px;color:var(--mist);padding:4px 0;
  transition:color .2s var(--ease);
}
.footer__link::after{
  content:"";position:absolute;left:0;bottom:2px;height:1px;width:0;
  background:var(--accent);transition:width .25s var(--ease);
}
.footer__link:hover,.footer__link:focus-visible{color:var(--white)}
.footer__link:hover::after,.footer__link:focus-visible::after{width:100%}

.footer__contact{display:flex;flex-direction:column;gap:14px}
.footer__meta{display:grid;grid-template-columns:auto minmax(0,1fr);gap:6px 14px;font-size:var(--step-13);line-height:1.7}
.footer__meta-term{color:var(--muted);white-space:nowrap}
.footer__meta-desc{color:var(--mist);max-width:none}
@media (max-width:479px){
  .footer__meta{grid-template-columns:minmax(0,1fr);gap:2px}
  .footer__meta-desc{margin-bottom:8px}
}
.footer__cta{align-self:flex-start;margin-top:4px}

.footer__bottom{
  max-width:var(--maxw);margin-inline:auto;
  padding:18px 20px 32px;
  border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;gap:8px 28px;justify-content:space-between;
  font-size:var(--step-13);color:var(--muted);
}
@media (min-width:768px){.footer__bottom{padding-inline:32px}}
.footer__legal{max-width:none}
.footer__icp{color:var(--mist)}
.footer__update{max-width:34em}

/* ---------- a11y / motion ---------- */
@media (prefers-reduced-motion: reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{
    animation-duration:.001ms!important;
    animation-iteration-count:1!important;
    transition-duration:.001ms!important;
  }
  [data-reveal]{opacity:1!important;transform:none!important}
}