:root{
  --night:#071A2F;
  --deep:#0D2A4A;
  --panel:#15395C;
  --gold:#D9A441;
  --gold-bright:#F0C978;
  --saffron:#C7433F;
  --saffron-light:#E06A5E;
  --snow:#F4F7FA;
  --mist:#9AB0C6;
  --glow:#57C7C2;
  --ink:#020B14;
  --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:"IBM Plex Mono","JetBrains Mono","SF Mono",ui-monospace,"Cascadia Mono",Consolas,"Courier New",monospace;
  --line:rgba(154,176,198,.20);
  --line-soft:rgba(154,176,198,.13);
  --radius:18px;
  --wrap:1180px;
  --ease:160ms ease;
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background-color:var(--night);
  background-image:
    radial-gradient(1100px 620px at 80% -10%,rgba(217,164,65,.11),transparent 62%),
    radial-gradient(900px 520px at 4% 14%,rgba(87,199,194,.07),transparent 60%),
    repeating-linear-gradient(115deg,rgba(154,176,198,.045) 0 1px,transparent 1px 66px);
  color:var(--snow);
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.75;
  font-weight:400;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,p,ul,ol,figure,blockquote{margin:0}
ul,ol{padding:0;list-style:none}
img,svg{max-width:100%;display:block}
button{font:inherit;color:inherit}
a{color:inherit}
:focus-visible{outline:2px solid var(--gold-bright);outline-offset:3px}

h1,h2,h3,h4{font-weight:800;line-height:1.2;letter-spacing:-.012em;color:var(--snow)}
h1{font-size:clamp(2.25rem,5.2vw,4.15rem)}
h2{font-size:clamp(1.7rem,3.3vw,2.7rem)}
h3{font-size:clamp(1.2rem,2.1vw,1.7rem)}

.wrap{width:100%;max-width:var(--wrap);margin-inline:auto;padding-inline:clamp(18px,4vw,40px)}
.mono{font-family:var(--font-mono);font-weight:600;letter-spacing:.02em;color:var(--snow)}

/* ---------- skip link ---------- */
.skip-link{
  position:absolute;left:18px;top:-80px;z-index:200;
  background:var(--gold);color:#08182B;
  padding:10px 20px;border-radius:0 0 12px 12px;
  font-size:14px;font-weight:700;letter-spacing:.04em;text-decoration:none;
  transition:top var(--ease);
}
.skip-link:focus{top:0}

/* ---------- header shell ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(7,26,47,.96);
  border-bottom:1px solid var(--line-soft);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
}
.utility-bar{
  background:var(--ink);
  border-bottom:1px solid var(--line-soft);
  overflow:hidden;
  max-height:60px;
  opacity:1;
  transition:max-height var(--ease),opacity var(--ease),border-color var(--ease);
}
.site-header[data-compact] .utility-bar{max-height:0;opacity:0;border-bottom-color:transparent}
.utility-bar__inner{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;
  gap:6px 24px;min-height:38px;padding-block:6px;
}
.utility-meta{display:flex;flex-wrap:wrap;align-items:center;gap:6px 22px}
.utility-meta__item{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12.5px;letter-spacing:.04em;color:var(--mist);
}
.utility-hint{margin:0;font-size:12.5px;letter-spacing:.04em;color:var(--mist)}
.utility-hint strong{color:var(--gold-bright);font-weight:600}
.status-dot{
  display:inline-block;width:7px;height:7px;border-radius:50%;
  background:var(--glow);box-shadow:0 0 0 3px rgba(87,199,194,.20);flex:0 0 auto;
}
.status-dot--gold{background:var(--gold);box-shadow:0 0 0 3px rgba(217,164,65,.20)}

.masthead{
  display:grid;
  grid-template-columns:1fr auto 1fr;
  grid-template-areas:
    ". brand cta"
    "nav nav nav";
  align-items:center;
  gap:0 24px;
  padding-block:18px 0;
  transition:padding-block var(--ease);
}
.brand{
  grid-area:brand;justify-self:center;
  display:inline-flex;align-items:center;gap:12px;
  text-decoration:none;color:var(--snow);
}
.brand__mark{
  display:grid;place-items:center;
  width:40px;height:40px;border-radius:12px;flex:0 0 auto;
  background:linear-gradient(150deg,var(--gold),var(--saffron));
  color:#08182B;font-size:19px;font-weight:800;line-height:1;
  box-shadow:0 12px 26px -16px rgba(217,164,65,.95);
}
.brand__text{display:flex;flex-direction:column;line-height:1.18}
.brand__name{font-size:clamp(19px,2.6vw,27px);font-weight:800;letter-spacing:.15em}
.brand__sub{font-size:11px;letter-spacing:.24em;color:var(--mist);margin-top:2px}

.nav-toggle{
  display:none;align-items:center;gap:9px;
  grid-area:toggle;justify-self:end;
  padding:9px 14px;border-radius:999px;
  border:1px solid rgba(154,176,198,.38);
  background:rgba(21,57,92,.66);
  color:var(--snow);cursor:pointer;
  font-size:13px;font-weight:600;letter-spacing:.08em;
  transition:border-color var(--ease),background-color var(--ease),color var(--ease);
}
.nav-toggle:hover{border-color:var(--gold);background:rgba(217,164,65,.14);color:var(--gold-bright)}
.nav-toggle__bars{position:relative;display:block;width:16px;height:2px;border-radius:2px;background:currentColor;transition:background-color var(--ease)}
.nav-toggle__bars::before,
.nav-toggle__bars::after{
  content:"";position:absolute;left:0;width:16px;height:2px;border-radius:2px;
  background:currentColor;transition:transform var(--ease),top var(--ease);
}
.nav-toggle__bars::before{top:-5px}
.nav-toggle__bars::after{top:5px}
.site-header[data-open] .nav-toggle__bars{background:transparent}
.site-header[data-open] .nav-toggle__bars::before{top:0;transform:rotate(45deg)}
.site-header[data-open] .nav-toggle__bars::after{top:0;transform:rotate(-45deg)}

.site-nav{
  grid-area:nav;
  border-top:1px solid var(--line-soft);
  padding-block:4px;
}
.site-nav__list{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:center;
  gap:2px clamp(6px,1.6vw,22px);
}
.site-nav__link{
  position:relative;display:inline-block;
  padding:10px 4px;
  color:var(--mist);font-size:15px;font-weight:500;letter-spacing:.05em;
  text-decoration:none;
  transition:color var(--ease);
}
.site-nav__link::after{
  content:"";position:absolute;left:0;right:0;bottom:3px;height:2px;border-radius:2px;
  background:var(--gold);transform:scaleX(0);transform-origin:50% 50%;
  transition:transform var(--ease),background-color var(--ease);
}
.site-nav__link:hover{color:var(--snow)}
.site-nav__link:hover::after{transform:scaleX(1)}
.site-nav__link:focus-visible{color:var(--snow)}
.site-nav__link[aria-current="page"]{color:var(--gold-bright);font-weight:700}
.site-nav__link[aria-current="page"]::after{transform:scaleX(1);background:var(--saffron)}

.masthead__cta{
  grid-area:cta;justify-self:end;
  display:flex;align-items:center;gap:10px;
}

.scroll-progress{
  position:absolute;left:0;right:0;bottom:-1px;height:2px;
  background:rgba(154,176,198,.14);
}
.scroll-progress__bar{
  display:block;height:100%;width:100%;
  transform:scaleX(0);transform-origin:0 50%;
  background:linear-gradient(90deg,var(--gold),var(--gold-bright));
  transition:transform 120ms linear;
}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:40px;padding:9px 18px;border-radius:999px;
  border:1px solid transparent;
  font-family:inherit;font-size:14px;font-weight:600;letter-spacing:.05em;
  text-decoration:none;cursor:pointer;white-space:nowrap;
  transition:background-color var(--ease),color var(--ease),border-color var(--ease);
}
.btn--gold{background:var(--gold);color:#08182B;border-color:var(--gold)}
.btn--gold:hover{background:var(--gold-bright);border-color:var(--gold-bright)}
.btn--line{background:transparent;color:var(--snow);border-color:rgba(154,176,198,.42)}
.btn--line:hover{border-color:var(--gold);color:var(--gold-bright);background:rgba(217,164,65,.10)}
.btn--quiet{background:transparent;color:var(--mist);border-color:transparent;padding-inline:6px}
.btn--quiet:hover{color:var(--gold-bright)}

/* ---------- shared content blocks ---------- */
.section{padding-block:clamp(46px,7vw,92px)}
.section--panel{background:var(--deep);border-block:1px solid var(--line-soft)}
.section--ink{background:var(--ink)}
.section__head{display:grid;gap:14px;max-width:46rem;margin-bottom:clamp(26px,4vw,46px)}
.section__title{font-size:clamp(1.6rem,3vw,2.4rem);font-weight:800;letter-spacing:-.01em}
.eyebrow{
  display:inline-flex;align-items:center;gap:10px;
  font-size:12px;font-weight:700;letter-spacing:.3em;text-transform:uppercase;color:var(--gold);
}
.lede{font-size:clamp(1rem,1.35vw,1.125rem);line-height:1.85;color:var(--mist);max-width:40em}

.breadcrumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;letter-spacing:.05em;color:var(--mist)}
.breadcrumbs__link{color:var(--mist);text-decoration:none;transition:color var(--ease)}
.breadcrumbs__link:hover{color:var(--gold-bright)}
.breadcrumbs__sep{color:rgba(154,176,198,.45)}

.prose{max-width:68ch;font-size:1.0625rem;line-height:1.8;color:rgba(244,247,250,.88)}
.prose p+p{margin-top:1.1em}
.prose h2{margin-top:1.9em;margin-bottom:.6em}
.prose h3{margin-top:1.6em;margin-bottom:.5em}
.prose a{color:var(--gold-bright);text-decoration:underline;text-underline-offset:3px}
.prose ul,.prose ol{margin-top:.9em;display:grid;gap:.5em;padding-left:1.1em;list-style:disc}
.prose ol{list-style:decimal}

.grid{display:grid;gap:clamp(16px,2.4vw,28px)}
.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:minmax(0,1.15fr) minmax(0,.85fr)}

.card{
  background:var(--panel);
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:clamp(18px,2.4vw,28px);
  transition:border-color var(--ease),background-color var(--ease);
}
.card:hover,.card:focus-within{border-color:rgba(217,164,65,.62)}
.card__title{font-size:1.125rem;font-weight:700;letter-spacing:.01em;color:var(--snow)}
.card__text{margin-top:8px;font-size:.95rem;line-height:1.75;color:var(--mist)}

.stat-grid{
  display:grid;grid-template-columns:repeat(auto-fit,minmax(140px,1fr));
  gap:1px;background:var(--line);
  border:1px solid var(--line);border-radius:14px;overflow:hidden;
}
.stat{background:var(--night);padding:18px 20px}
.stat__value{font-family:var(--font-mono);font-size:clamp(1.4rem,2.6vw,2rem);font-weight:600;color:var(--gold-bright);line-height:1.2}
.stat__label{margin-top:6px;font-size:12px;letter-spacing:.14em;color:var(--mist)}

.pill{
  display:inline-flex;align-items:center;gap:8px;
  padding:4px 12px;border-radius:999px;
  font-size:12px;font-weight:600;letter-spacing:.07em;
  border:1px solid rgba(154,176,198,.34);
  background:rgba(21,57,92,.62);color:var(--snow);
}
.pill--gold{color:var(--gold-bright);border-color:rgba(217,164,65,.52);background:rgba(217,164,65,.13)}
.pill--saffron{color:var(--saffron-light);border-color:rgba(199,67,63,.55);background:rgba(199,67,63,.15)}
.pill--glow{color:var(--glow);border-color:rgba(87,199,194,.5);background:rgba(87,199,194,.12)}

.rule{height:1px;border:0;margin-block:clamp(24px,4vw,40px);background:linear-gradient(90deg,rgba(217,164,65,.6),rgba(154,176,198,.16) 42%,transparent)}
.note{font-size:13px;line-height:1.7;color:var(--mist);border-left:2px solid var(--gold);padding-left:14px}
.link-arrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:.95rem;font-weight:600;color:var(--gold-bright);text-decoration:none;
  border-bottom:1px solid rgba(217,164,65,.4);padding-bottom:2px;
  transition:border-color var(--ease),color var(--ease);
}
.link-arrow::after{content:"→";transition:transform var(--ease)}
.link-arrow:hover{border-bottom-color:var(--gold-bright);color:var(--gold-bright)}
.link-arrow:hover::after{transform:translateX(3px)}

/* ---------- responsive media containers ---------- */
.media{
  position:relative;overflow:hidden;
  aspect-ratio:16/10;
  border-radius:20px;
  border:1px solid var(--line);
  background:linear-gradient(160deg,var(--panel),var(--deep) 62%,var(--ink));
}
.media::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:repeating-linear-gradient(125deg,rgba(154,176,198,.09) 0 1px,transparent 1px 24px);
}
.media--wide{aspect-ratio:21/9}
.media--tall{aspect-ratio:3/4}
.media__img{width:100%;height:100%;object-fit:cover;display:block}
.media__scrim{position:absolute;inset:0;background:linear-gradient(180deg,transparent 42%,rgba(2,11,20,.8))}

/* ---------- footer ---------- */
.site-footer{
  background:var(--ink);
  border-top:1px solid var(--line-soft);
  color:var(--mist);
  padding-block:clamp(44px,6vw,72px) 26px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr .85fr .85fr 1.35fr;
  gap:clamp(26px,4vw,44px) clamp(18px,3vw,34px);
}
.brand--footer{justify-self:start;align-items:flex-start;gap:13px}
.brand--footer .brand__name{font-size:22px;letter-spacing:.12em}
.brand--footer .brand__sub{letter-spacing:.12em;text-transform:none;font-size:11.5px}
.footer-brand__note{margin-top:16px;max-width:32ch;font-size:14px;line-height:1.75;color:var(--mist)}
.footer-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px}
.tag{
  display:inline-flex;align-items:center;
  padding:4px 11px;border-radius:999px;
  font-size:11.5px;letter-spacing:.1em;
  border:1px solid rgba(154,176,198,.3);
  background:rgba(21,57,92,.5);color:var(--mist);
}
.footer-col__title{
  margin:0 0 14px;
  font-size:11.5px;font-weight:700;letter-spacing:.26em;text-transform:uppercase;
  color:var(--gold);
}
.footer-list{display:grid;gap:10px}
.footer-link{
  display:inline-block;
  font-size:14.5px;color:var(--mist);text-decoration:none;
  padding-bottom:2px;border-bottom:1px solid transparent;
  transition:color var(--ease),border-color var(--ease);
}
.footer-link:hover{color:var(--snow);border-bottom-color:var(--gold)}
.footer-contact__row{
  display:flex;flex-wrap:wrap;align-items:baseline;gap:6px 10px;
  padding-block:10px;border-bottom:1px dashed rgba(154,176,198,.18);
}
.footer-contact__row--block{padding-bottom:12px}
.footer-contact__label{flex:0 0 42px;font-size:11.5px;letter-spacing:.16em;color:var(--mist)}
.footer-contact__value{flex:1 1 12ch;min-width:0;font-size:13.5px;line-height:1.6;color:var(--snow);word-break:break-word}
.footer-contact__value--mono{font-family:var(--font-mono);font-weight:600;letter-spacing:.04em}
.copy-btn{
  flex:0 0 auto;margin-left:auto;
  font-family:inherit;font-size:11.5px;letter-spacing:.1em;
  padding:3px 11px;border-radius:999px;
  border:1px solid rgba(154,176,198,.34);
  background:transparent;color:var(--mist);cursor:pointer;
  transition:color var(--ease),border-color var(--ease),background-color var(--ease);
}
.copy-btn:hover{color:var(--gold-bright);border-color:var(--gold);background:rgba(217,164,65,.12)}
.copy-btn[data-copied="true"]{color:var(--glow);border-color:var(--glow);background:rgba(87,199,194,.14)}
.footer-contact__note{margin-top:14px;font-size:12.5px;line-height:1.7;color:var(--mist)}
.footer-bottom{
  margin-top:clamp(32px,5vw,52px);
  padding-top:20px;
  border-top:1px solid rgba(154,176,198,.16);
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;
  gap:12px 26px;
  font-size:12.5px;
}
.footer-copy{margin:0;color:var(--mist);letter-spacing:.06em}
.footer-legal{display:flex;flex-wrap:wrap;align-items:center;gap:8px 18px}
.footer-legal__link{color:var(--mist);text-decoration:none;transition:color var(--ease)}
.footer-legal__link:hover{color:var(--gold-bright)}
.footer-icp{margin:0;font-family:var(--font-mono);font-size:12px;letter-spacing:.03em;color:var(--mist)}

/* ---------- tablet ---------- */
@media (max-width:1000px){
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-brand{grid-column:1 / -1}
}
@media (max-width:860px){
  .grid--2,.grid--3,.grid--split{grid-template-columns:minmax(0,1fr)}
}

/* ---------- mobile header ---------- */
@media (max-width:999px){
  .masthead{
    grid-template-columns:1fr auto 1fr;
    grid-template-areas:
      ". brand toggle"
      "nav nav nav"
      "cta cta cta";
    gap:0 14px;
    padding-block:12px;
  }
  .nav-toggle{display:inline-flex}
  .site-nav{display:none;border-top:1px solid var(--line);margin-top:4px}
  .site-header[data-open] .site-nav{display:block;background:var(--deep);border-radius:0 0 14px 14px}
  .site-nav__list{flex-direction:column;align-items:stretch;gap:0;padding-block:6px}
  .site-nav__item{border-bottom:1px solid rgba(154,176,198,.14)}
  .site-nav__item:last-child{border-bottom:0}
  .site-nav__link{display:block;padding:14px 10px;font-size:16px}
  .site-nav__link::after{display:none}
  .site-nav__link[aria-current="page"]{background:rgba(217,164,65,.12);border-radius:10px}
  .masthead__cta{display:none;justify-self:stretch;justify-content:center;flex-wrap:wrap;gap:10px;padding-block:14px 4px}
  .site-header[data-open] .masthead__cta{display:flex}
  .site-header[data-open] .brand__sub{color:var(--gold-bright)}
  .utility-bar__inner{justify-content:flex-start}
}

/* ---------- desktop compact header ---------- */
@media (min-width:1000px){
  .site-header[data-compact] .masthead{
    grid-template-columns:auto 1fr auto;
    grid-template-areas:"brand nav cta";
    padding-block:9px 0;
  }
  .site-header[data-compact] .brand{justify-self:start}
  .site-header[data-compact] .brand__sub{display:none}
  .site-header[data-compact] .brand__name{font-size:19px;letter-spacing:.13em}
  .site-header[data-compact] .brand__mark{width:32px;height:32px;border-radius:10px;font-size:16px}
  .site-header[data-compact] .site-nav{border-top:0;padding-block:8px}
  .site-header[data-compact] .site-nav__link{padding-block:6px;font-size:14.5px}
  .site-header[data-compact] .btn{min-height:34px;padding:6px 14px;font-size:13px}
}

/* ---------- small screens ---------- */
@media (max-width:600px){
  .footer-grid{grid-template-columns:minmax(0,1fr)}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .brand__sub{letter-spacing:.16em}
  .utility-hint{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;
  }
}