/* ============ reset ============ */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body,h1,h2,h3,p,ul,ol,dl,dd,figure{margin:0}
ul,ol{padding:0;list-style:none}
body{
  background:#061321;
  color:#F7FAFF;
  font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.75;
  min-height:100vh;
  -webkit-font-smoothing:antialiased;
}
img,svg{max-width:100%;display:block}
button{font:inherit;color:inherit}
a{color:#F7FAFF;text-decoration:none}
html.is-nav-open{overflow:hidden}

/* ============ tokens ============ */
:root{
  --ink-900:#061321;
  --ink-800:#0B1F33;
  --paper:#F7FAFF;
  --sapphire:#2457FF;
  --sapphire-bright:#3E6BFF;
  --amber:#F4B740;
  --lime:#C8FF4D;
  --wine:#6B1F3A;
  --indigo:#3A2460;
  --sand:#F5F1E8;
  --mist:#9FB0C3;
  --wire:#2C4A6B;
  --font-display:"Noto Sans SC","Source Han Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
  --font-body:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  --font-mono:"IBM Plex Mono","JetBrains Mono",ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  --shell-w:1320px;
  --gutter:clamp(1.1rem,3vw,3.25rem);
  --ease:180ms cubic-bezier(.2,.6,.2,1);
  --rule:1px solid var(--wire);
}

/* ============ base typography ============ */
h1,h2,h3{font-family:var(--font-display);font-weight:900;letter-spacing:-.035em;line-height:1.05}
strong{font-weight:800}
::selection{background:var(--amber);color:var(--ink-900)}
:focus-visible{outline:2px solid var(--lime);outline-offset:3px}

/* ============ skip link ============ */
.skip-link{
  position:absolute;
  left:var(--gutter);
  top:-4rem;
  z-index:120;
  padding:.6rem 1rem;
  background:var(--lime);
  color:var(--ink-900);
  font-family:var(--font-mono);
  font-size:.74rem;
  letter-spacing:.12em;
  transition:top var(--ease);
}
.skip-link:focus{top:.75rem}

/* ============ progress rail ============ */
.progress-rail{
  position:fixed;
  inset:0 0 auto 0;
  height:2px;
  background:rgba(44,74,107,.55);
  z-index:110;
  pointer-events:none;
}
.progress-rail__fill{
  display:block;
  height:100%;
  width:100%;
  transform:scaleX(0);
  transform-origin:0 50%;
  background:linear-gradient(90deg,var(--sapphire),var(--lime));
}

/* ============ masthead ============ */
.masthead{
  position:relative;
  z-index:90;
  background:var(--ink-900);
  border-bottom:1px solid var(--wire);
}
.masthead__rail{
  border-bottom:1px solid rgba(44,74,107,.55);
  background:var(--ink-900);
}
.masthead__rail-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:1.25rem;
  width:100%;
  max-width:var(--shell-w);
  margin-inline:auto;
  padding:.7rem var(--gutter);
}

/* brand */
.brand{
  display:grid;
  grid-template-columns:auto minmax(0,1fr);
  grid-template-rows:auto auto;
  column-gap:.7rem;
  align-items:center;
  text-decoration:none;
  color:var(--paper);
}
.brand__mark{
  grid-row:1 / span 2;
  width:24px;
  height:24px;
  background:var(--amber);
  clip-path:polygon(50% 0,61% 39%,100% 50%,61% 61%,50% 100%,39% 61%,0 50%,39% 39%);
  transition:background var(--ease),transform var(--ease);
}
.brand:hover .brand__mark{background:var(--lime);transform:rotate(90deg)}
.brand:focus-visible .brand__mark{background:var(--lime)}
.brand__name{
  font-family:var(--font-display);
  font-weight:900;
  font-size:1.02rem;
  letter-spacing:-.01em;
  line-height:1.2;
  color:var(--paper);
}
.brand__line{
  font-family:var(--font-mono);
  font-size:.64rem;
  letter-spacing:.14em;
  line-height:1.4;
  color:var(--mist);
  white-space:nowrap;
  overflow:hidden;
  text-overflow:ellipsis;
}
.brand--footer .brand__mark{width:34px;height:34px}
.brand--footer .brand__name{font-size:1.4rem}
.brand--footer .brand__line{font-size:.7rem;margin-top:.15rem}

/* utility */
.masthead__utility{
  display:flex;
  align-items:center;
  gap:.85rem;
}
.utility-link{
  position:relative;
  padding:.3rem 0;
  font-family:var(--font-mono);
  font-size:.72rem;
  letter-spacing:.1em;
  color:var(--mist);
  border-bottom:1px solid transparent;
  transition:color var(--ease),border-color var(--ease);
}
.utility-link:hover,.utility-link:focus-visible{color:var(--paper);border-bottom-color:var(--amber)}
.utility-link--signal{
  padding:.36rem .72rem;
  color:var(--paper);
  border:1px solid var(--wire);
  background:rgba(58,36,96,.55);
  transition:background var(--ease),border-color var(--ease),color var(--ease);
}
.utility-link--signal:hover,.utility-link--signal:focus-visible{
  background:var(--indigo);
  border-color:var(--amber);
  color:var(--paper);
}
.status{
  display:inline-flex;
  align-items:center;
  gap:.42rem;
  font-family:var(--font-mono);
  font-size:.64rem;
  letter-spacing:.16em;
  color:var(--mist);
}
.status__dot{
  width:7px;height:7px;
  background:var(--lime);
  box-shadow:0 0 0 3px rgba(200,255,77,.16);
}

/* nav toggle */
.nav-toggle{
  display:none;
  align-items:center;
  gap:.55rem;
  padding:.5rem .7rem;
  background:transparent;
  border:1px solid var(--wire);
  color:var(--paper);
  cursor:pointer;
  transition:border-color var(--ease),background var(--ease);
}
.nav-toggle:hover{border-color:var(--amber)}
.nav-toggle__bars{
  position:relative;
  width:18px;
  height:2px;
  background:currentColor;
  transition:background var(--ease);
}
.nav-toggle__bars::before,
.nav-toggle__bars::after{
  content:"";
  position:absolute;
  left:0;
  width:18px;
  height:2px;
  background:currentColor;
  transition:transform var(--ease);
}
.nav-toggle__bars::before{top:-6px}
.nav-toggle__bars::after{top:6px}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars{background:transparent}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars::before{transform:translateY(6px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars::after{transform:translateY(-6px) rotate(-45deg)}
.nav-toggle__label{
  font-family:var(--font-mono);
  font-size:.68rem;
  letter-spacing:.14em;
}

/* deck + nav */
.masthead__deck{
  background:var(--ink-800);
}
.masthead__deck-inner{
  display:flex;
  align-items:stretch;
  justify-content:space-between;
  gap:1rem;
  width:100%;
  max-width:var(--shell-w);
  margin-inline:auto;
  padding-inline:var(--gutter);
}
.nav{min-width:0}
.nav__list{
  display:flex;
  flex-wrap:wrap;
  align-items:stretch;
}
.nav__item{border-left:1px solid rgba(44,74,107,.55)}
.nav__item:last-child{border-right:1px solid rgba(44,74,107,.55)}
.nav__link{
  display:flex;
  flex-direction:column;
  gap:.1rem;
  padding:.58rem 1.05rem .66rem;
  color:var(--mist);
  font-size:.92rem;
  font-weight:700;
  letter-spacing:.02em;
  border-bottom:2px solid transparent;
  transition:color var(--ease),background var(--ease),border-color var(--ease);
}
.nav__link:hover,.nav__link:focus-visible{
  color:var(--paper);
  background:rgba(36,87,255,.16);
  border-bottom-color:var(--sapphire);
}
.nav__link[aria-current="page"]{
  color:var(--paper);
  background:rgba(244,183,64,.1);
  border-bottom-color:var(--amber);
}
.nav__index{
  font-family:var(--font-mono);
  font-size:.6rem;
  letter-spacing:.2em;
  color:var(--mist);
  opacity:.72;
  transition:color var(--ease),opacity var(--ease);
}
.nav__link:hover .nav__index{color:var(--lime);opacity:1}
.nav__link[aria-current="page"] .nav__index{color:var(--amber);opacity:1}
.masthead__ticker{
  align-self:center;
  margin-left:auto;
  padding-left:1rem;
  border-left:1px solid var(--wire);
  font-family:var(--font-mono);
  font-size:.62rem;
  letter-spacing:.24em;
  color:var(--mist);
  white-space:nowrap;
}
.masthead__veil{display:none}

/* ============ colophon ============ */
.colophon{
  margin-top:0;
  background:var(--ink-900);
  border-top:1px solid var(--wire);
}
.colophon__deck{
  display:grid;
  grid-template-columns:minmax(0,.9fr) minmax(0,1.5fr);
  gap:clamp(2rem,5vw,4.5rem);
  width:100%;
  max-width:var(--shell-w);
  margin-inline:auto;
  padding:clamp(2.4rem,5vw,4rem) var(--gutter);
  background:var(--ink-800);
  border-bottom:1px solid var(--wire);
}
.colophon__brand{display:flex;flex-direction:column;gap:1rem;align-items:flex-start}
.colophon__note{
  font-size:.98rem;
  color:var(--paper);
  max-width:26ch;
  border-left:2px solid var(--amber);
  padding-left:.85rem;
}
.colophon__stamp{
  display:flex;
  align-items:center;
  font-family:var(--font-mono);
  font-size:.68rem;
  letter-spacing:.1em;
  color:var(--mist);
}
.stamp{
  font-family:var(--font-mono);
  font-size:.64rem;
  letter-spacing:.18em;
  color:var(--lime);
  border:1px solid var(--wire);
  padding:.18rem .42rem;
  margin-right:.6rem;
}
.colophon__columns{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:clamp(1.2rem,3vw,2.5rem);
}
.colophon__column{min-width:0}
.colophon__title{
  font-family:var(--font-mono);
  font-size:.68rem;
  font-weight:500;
  letter-spacing:.22em;
  color:var(--mist);
  padding-bottom:.7rem;
  margin-bottom:.7rem;
  border-bottom:1px solid var(--wire);
}
.colophon__list{display:flex;flex-direction:column;gap:.15rem}
.colophon__link{
  display:inline-block;
  padding:.28rem 0;
  font-size:.94rem;
  color:var(--paper);
  border-bottom:1px solid transparent;
  transition:color var(--ease),border-color var(--ease),padding-left var(--ease);
}
.colophon__link:hover,.colophon__link:focus-visible{
  color:var(--amber);
  border-bottom-color:var(--amber);
  padding-left:.3rem;
}
.colophon__contact{
  background:var(--indigo);
  border-bottom:1px solid var(--wire);
}
.colophon__contact-inner{
  display:grid;
  grid-template-columns:minmax(0,.8fr) minmax(0,1.6fr);
  gap:clamp(1.4rem,4vw,3rem);
  width:100%;
  max-width:var(--shell-w);
  margin-inline:auto;
  padding:clamp(1.6rem,3.5vw,2.6rem) var(--gutter);
}
.colophon__contact-head{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:.6rem;
}
.dot{
  width:8px;height:8px;
  background:var(--lime);
  box-shadow:0 0 0 4px rgba(200,255,77,.18);
  display:inline-block;
}
.colophon__contact-title{
  font-family:var(--font-display);
  font-size:1.05rem;
  letter-spacing:.02em;
  color:var(--paper);
}
.colophon__contact-note{
  font-family:var(--font-mono);
  font-size:.66rem;
  letter-spacing:.12em;
  color:var(--mist);
  flex-basis:100%;
}
.colophon__contact-list{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:.9rem 2rem;
}
.colophon__contact-item{
  display:grid;
  grid-template-columns:4.2rem minmax(0,1fr);
  align-items:baseline;
  gap:.5rem;
  border-top:1px solid rgba(247,250,255,.14);
  padding-top:.6rem;
}
.colophon__contact-item:last-child{grid-column:1 / -1}
.colophon__label{
  font-family:var(--font-mono);
  font-size:.64rem;
  letter-spacing:.2em;
  color:var(--mist);
}
.colophon__value{
  font-family:var(--font-mono);
  font-size:.8rem;
  letter-spacing:.02em;
  color:var(--paper);
}
.copy{
  display:inline-flex;
  align-items:baseline;
  gap:.6rem;
  background:transparent;
  border:0;
  border-bottom:1px dashed rgba(247,250,255,.34);
  padding:.05rem 0;
  font-family:var(--font-mono);
  font-size:.8rem;
  letter-spacing:.02em;
  color:var(--paper);
  cursor:pointer;
  text-align:left;
  transition:color var(--ease),border-color var(--ease);
}
.copy:hover,.copy:focus-visible{color:var(--amber);border-bottom-color:var(--amber)}
.copy__state{
  font-family:var(--font-mono);
  font-size:.6rem;
  letter-spacing:.16em;
  color:var(--lime);
  white-space:nowrap;
}
.colophon__base{background:var(--ink-900)}
.colophon__base-inner{
  display:flex;
  flex-wrap:wrap;
  justify-content:space-between;
  gap:.6rem 1.5rem;
  width:100%;
  max-width:var(--shell-w);
  margin-inline:auto;
  padding:1.1rem var(--gutter);
  font-family:var(--font-mono);
  font-size:.68rem;
  letter-spacing:.1em;
  color:var(--mist);
}
.colophon__legal,.colophon__domain{margin:0}
.colophon__domain{color:var(--mist);border-left:1px solid var(--wire);padding-left:.9rem}

/* ============ layout utilities ============ */
.shell{
  width:100%;
  max-width:var(--shell-w);
  margin-inline:auto;
  padding-inline:var(--gutter);
}
.section{padding-block:clamp(2.4rem,6vw,5.5rem)}
.section__head{display:grid;gap:.85rem;max-width:64ch}
.section__title{
  font-family:var(--font-display);
  font-weight:900;
  font-size:clamp(2rem,5vw,3.6rem);
  letter-spacing:-.04em;
  line-height:1.02;
  color:var(--paper);
}
.section__lead{font-size:1.02rem;color:var(--mist);max-width:60ch}
.grid{display:grid;gap:clamp(1rem,2.4vw,2rem)}
.grid--2{grid-template-columns:repeat(2,minmax(0,1fr))}
.grid--3{grid-template-columns:repeat(3,minmax(0,1fr))}
.rule{height:1px;border:0;background:var(--wire);margin:0}

/* ============ bands ============ */
.band{
  padding-block:clamp(2rem,5vw,4.5rem);
  border-block:1px solid var(--wire);
}
.band--wine{background:var(--wine);color:var(--paper)}
.band--indigo{background:var(--indigo);color:var(--paper)}
.band--sand{background:var(--sand);color:var(--ink-900)}
.band--sand .section__title,.band--sand .section__lead{color:var(--ink-900)}
.band--sand .eyebrow{color:#465366}
.band--sand .eyebrow::before{background:var(--sapphire)}

/* ============ buttons ============ */
.btn{
  display:inline-flex;
  align-items:center;
  gap:.65rem;
  padding:.78rem 1.3rem;
  border:1px solid var(--wire);
  border-radius:0;
  background:transparent;
  color:var(--paper);
  font-family:var(--font-body);
  font-weight:700;
  font-size:.92rem;
  letter-spacing:.02em;
  line-height:1.3;
  text-decoration:none;
  cursor:pointer;
  transition:background var(--ease),border-color var(--ease),color var(--ease);
}
.btn:hover,.btn:focus-visible{border-color:var(--amber);color:var(--amber)}
.btn--primary{background:var(--sapphire);border-color:var(--sapphire);color:#fff}
.btn--primary:hover,.btn--primary:focus-visible{background:var(--sapphire-bright);border-color:var(--sapphire-bright);color:#fff}
.btn--gold{background:var(--amber);border-color:var(--amber);color:var(--ink-900)}
.btn--gold:hover,.btn--gold:focus-visible{background:var(--lime);border-color:var(--lime);color:var(--ink-900)}
.btn--ghost{background:transparent;border-color:var(--wire);color:var(--paper)}
.btn__meta{
  font-family:var(--font-mono);
  font-size:.66rem;
  letter-spacing:.16em;
  opacity:.72;
}

/* ============ tags / notes ============ */
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:.55rem;
  font-family:var(--font-mono);
  font-size:.68rem;
  letter-spacing:.24em;
  color:var(--mist);
  text-transform:uppercase;
}
.eyebrow::before{content:"";width:18px;height:1px;background:var(--amber)}
.vert-note{
  font-family:var(--font-mono);
  font-size:.66rem;
  letter-spacing:.28em;
  color:var(--mist);
  writing-mode:vertical-rl;
  text-orientation:mixed;
}
.tag{
  display:inline-flex;
  align-items:center;
  gap:.4rem;
  padding:.24rem .55rem;
  border:1px solid var(--wire);
  font-family:var(--font-mono);
  font-size:.62rem;
  letter-spacing:.16em;
  color:var(--mist);
  text-transform:uppercase;
  line-height:1.4;
}
.tag--live{background:var(--lime);border-color:var(--lime);color:var(--ink-900)}
.tag--gold{background:var(--amber);border-color:var(--amber);color:var(--ink-900)}
.tag--wine{background:var(--wine);border-color:var(--wine);color:var(--paper)}

/* ============ breadcrumbs ============ */
.breadcrumbs{
  border-bottom:1px solid var(--wire);
  padding-block:.85rem;
  font-family:var(--font-mono);
  font-size:.68rem;
  letter-spacing:.12em;
  color:var(--mist);
}
.breadcrumbs ol{display:flex;flex-wrap:wrap;align-items:center;gap:.55rem}
.breadcrumbs li+li::before{content:"/";margin-right:.55rem;color:var(--wire)}
.breadcrumbs a{color:var(--mist);border-bottom:1px solid transparent;transition:color var(--ease),border-color var(--ease)}
.breadcrumbs a:hover,.breadcrumbs a:focus-visible{color:var(--paper);border-bottom-color:var(--amber)}

/* ============ media frames ============ */
.media{
  position:relative;
  overflow:hidden;
  aspect-ratio:16 / 9;
  border:1px solid var(--wire);
  background:
    repeating-linear-gradient(-45deg,rgba(44,74,107,.34) 0 1px,transparent 1px 12px),
    var(--ink-800);
}
.media--wide{aspect-ratio:21 / 9}
.media--square{aspect-ratio:1 / 1}
.media--portrait{aspect-ratio:3 / 4}
.media__img{
  width:100%;
  height:100%;
  object-fit:cover;
  display:block;
}
.media__tag{
  position:absolute;
  top:0;
  left:0;
  padding:.3rem .6rem;
  background:var(--amber);
  color:var(--ink-900);
  font-family:var(--font-mono);
  font-size:.62rem;
  letter-spacing:.16em;
  text-transform:uppercase;
}
.media__caption{
  position:absolute;
  inset:auto 0 0 0;
  padding:1.6rem .9rem .7rem;
  background:linear-gradient(to top,rgba(6,19,33,.94),rgba(6,19,33,0));
  color:var(--paper);
  font-size:.82rem;
  line-height:1.5;
}
.media::after{
  content:"";
  position:absolute;
  right:0;
  bottom:0;
  width:26px;
  height:26px;
  border-top:1px solid var(--lime);
  border-left:1px solid var(--lime);
  opacity:.55;
  pointer-events:none;
}

/* ============ responsive ============ */
@media (max-width:1080px){
  .masthead__ticker{display:none}
  .colophon__contact-list{grid-template-columns:1fr}
  .colophon__contact-item:last-child{grid-column:auto}
}
@media (max-width:900px){
  .nav-toggle{display:inline-flex}
  .status{display:none}
  .masthead__deck-inner{padding-inline:0;justify-content:flex-start}
  .nav{
    position:fixed;
    top:0;
    right:0;
    bottom:0;
    z-index:120;
    width:min(86vw,340px);
    padding:1.2rem 0 2rem;
    background:var(--ink-800);
    border-left:1px solid var(--wire);
    overflow-y:auto;
    transform:translateX(100%);
    transition:transform 200ms cubic-bezier(.2,.6,.2,1);
  }
  .nav__list{flex-direction:column;flex-wrap:nowrap}
  .nav__item{border-left:0;border-bottom:1px solid rgba(44,74,107,.55)}
  .nav__item:last-child{border-right:0}
  .nav__item:first-child{border-top:1px solid rgba(44,74,107,.55)}
  .nav__link{padding:.95rem 1.35rem;font-size:1.02rem}
  .nav__index{font-size:.62rem}
  .masthead__veil{
    display:block;
    position:fixed;
    inset:0;
    z-index:115;
    background:rgba(6,19,33,.72);
    opacity:0;
    pointer-events:none;
    transition:opacity 180ms linear;
  }
  .masthead[data-open] .nav{transform:translateX(0)}
  .masthead[data-open] .masthead__veil{opacity:1;pointer-events:auto}
  .colophon__deck{grid-template-columns:1fr}
  .colophon__contact-inner{grid-template-columns:1fr}
}
@media (max-width:760px){
  .grid--2,.grid--3{grid-template-columns:1fr}
  .colophon__columns{grid-template-columns:repeat(2,minmax(0,1fr))}
  .masthead__rail-inner{gap:.8rem}
  .colophon__domain{border-left:0;padding-left:0}
}
@media (max-width:560px){
  .brand__line{display:none}
  .utility-link{font-size:.66rem}
  .utility-link--signal{padding:.32rem .5rem}
  .colophon__columns{grid-template-columns:1fr}
  .colophon__contact-item{grid-template-columns:1fr;gap:.2rem}
}

/* ============ motion ============ */
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{
    animation-duration:.01ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.01ms !important;
    scroll-behavior:auto !important;
  }
  .nav{transition:none}
}