:root{
  --ink:#0A0E0D;
  --green-deep:#08251D;
  --green-panel:#10382C;
  --indigo:#211C3E;
  --wine:#3B1420;
  --teal-deep:#0D3A44;
  --yellow:#FFD24A;
  --cyan:#2AE0CF;
  --orange:#FF8A3D;
  --slate:#8FA6B6;
  --paper:#F3F0E7;
  --muted:#9FB5AC;
  --line:rgba(243,240,231,.14);
  --line-strong:rgba(243,240,231,.28);
  --font-display:"Helvetica Neue","PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",sans-serif;
  --font-body:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC","Helvetica Neue",sans-serif;
  --font-mono:ui-monospace,SFMono-Regular,"SF Mono",Menlo,Consolas,"Liberation Mono",monospace;
  --gutter:clamp(18px,4vw,56px);
  --maxw:1220px;
  --radius-card:22px;
  --radius-organic:28px 6px 26px 6px;
  --shadow-lift:0 26px 60px -34px rgba(0,0,0,.95);
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body,h1,h2,h3,h4,p,ul,ol,figure,blockquote,dl{margin:0}
ul,ol{padding:0;list-style:none}
img,svg,video{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0}
:where(a,button,[tabindex],summary):focus-visible{outline:2px solid var(--yellow);outline-offset:4px;border-radius:4px}

body{
  background:var(--ink);
  color:var(--paper);
  font-family:var(--font-body);
  font-size:17px;
  font-weight:400;
  line-height:1.8;
  letter-spacing:.01em;
  min-height:100vh;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
@media (min-width:768px){body{font-size:18px}}

h1,h2,h3,h4{
  font-family:var(--font-display);
  font-weight:800;
  line-height:1.1;
  letter-spacing:-.02em;
  font-stretch:condensed;
  text-wrap:balance;
}
h1{font-size:clamp(2.3rem,6vw,4.4rem)}
h2{font-size:clamp(1.75rem,3.6vw,2.6rem)}
h3{font-size:clamp(1.25rem,2.2vw,1.7rem);letter-spacing:-.01em}
p{max-width:72ch}

#main-content{display:block;scroll-margin-top:104px}
:where(section,article,div)[id]{scroll-margin-top:104px}

.container{width:100%;max-width:var(--maxw);margin-inline:auto;padding-inline:var(--gutter)}
.num{font-family:var(--font-mono);font-weight:700;font-variant-numeric:tabular-nums;letter-spacing:-.01em}
.stack{display:grid;gap:clamp(12px,1.8vw,20px)}

/* ---------- skip link ---------- */
.skip-link{
  position:absolute;
  left:16px;
  top:-120px;
  z-index:300;
  display:inline-block;
  padding:12px 20px;
  background:var(--yellow);
  color:#10130F;
  font-weight:700;
  font-size:14px;
  border-radius:0 0 14px 14px;
  transition:top .2s ease;
}
.skip-link:focus{top:0}

/* ---------- header ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:90;
  background:linear-gradient(180deg,rgba(8,37,29,.82),rgba(10,14,13,0));
  transition:background .25s ease,box-shadow .25s ease,backdrop-filter .25s ease;
}
.site-header[data-scrolled]{
  background:rgba(8,13,12,.95);
  backdrop-filter:blur(14px) saturate(140%);
  box-shadow:0 1px 0 rgba(243,240,231,.12),0 22px 48px -34px rgba(0,0,0,.95);
}
.site-header__inner{
  display:flex;
  align-items:center;
  gap:clamp(12px,2vw,32px);
  min-height:76px;
  padding-block:12px;
}

/* brand */
.brand{display:inline-flex;align-items:center;gap:12px;flex:0 0 auto;transition:opacity .2s ease}
.brand:hover{opacity:.86}
.brand__mark{
  position:relative;
  width:36px;height:36px;flex:0 0 auto;
  border-radius:14px 5px 14px 5px;
  background:linear-gradient(140deg,var(--yellow),var(--orange));
  box-shadow:inset 0 0 0 1px rgba(10,14,13,.35),0 10px 24px -16px rgba(255,210,74,.9);
}
.brand__mark::after{
  content:"";
  position:absolute;left:50%;top:50%;
  width:13px;height:13px;
  transform:translate(-50%,-50%) rotate(45deg);
  background:var(--ink);
  border-radius:3px;
}
.brand__text{display:flex;flex-direction:column;line-height:1.15}
.brand__name{font-family:var(--font-display);font-weight:800;font-size:16px;letter-spacing:.04em}
.brand__line{
  margin-top:4px;
  font-family:var(--font-mono);
  font-size:10px;
  letter-spacing:.14em;
  color:var(--slate);
}
@media (max-width:420px){.brand__line{display:none}}

/* nav */
.site-nav{margin-left:auto;display:flex;align-items:center;gap:clamp(8px,1.6vw,26px)}
.site-nav__list{display:flex;align-items:center;gap:clamp(4px,1.1vw,18px);counter-reset:navidx}
.site-nav__item{display:block}
.site-nav__link{
  position:relative;
  display:inline-flex;
  align-items:baseline;
  gap:7px;
  padding:10px 2px;
  font-size:14.5px;
  color:var(--muted);
  letter-spacing:.01em;
  transition:color .2s ease;
}
.site-nav__link::before{
  counter-increment:navidx;
  content:counter(navidx,decimal-leading-zero);
  font-family:var(--font-mono);
  font-size:10px;
  font-weight:700;
  letter-spacing:.12em;
  color:rgba(143,166,182,.8);
  transition:color .2s ease;
}
.site-nav__link::after{
  content:"";
  position:absolute;
  left:0;right:0;bottom:2px;
  height:2px;
  background:var(--yellow);
  transform:scaleX(0);
  transform-origin:left center;
  transition:transform .24s ease;
}
.site-nav__link:hover{color:var(--paper)}
.site-nav__link:hover::after{transform:scaleX(1)}
.site-nav__link[aria-current="page"]{color:var(--yellow)}
.site-nav__link[aria-current="page"]::before{color:var(--yellow)}
.site-nav__link[aria-current="page"]::after{transform:scaleX(1)}
.site-nav__foot{display:none}

/* header aside */
.site-header__aside{margin-left:auto;display:flex;align-items:center;gap:12px;flex:0 0 auto}
.utility-link{
  display:inline-flex;
  align-items:center;
  padding:8px 12px;
  border:1px solid rgba(42,224,207,.34);
  border-radius:999px;
  font-family:var(--font-mono);
  font-size:11.5px;
  letter-spacing:.12em;
  color:var(--cyan);
  white-space:nowrap;
  transition:background .2s ease,border-color .2s ease;
}
.utility-link:hover{background:rgba(42,224,207,.14);border-color:var(--cyan)}

/* buttons */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:12px 22px;
  border-radius:999px;
  border:1px solid var(--line-strong);
  background:transparent;
  color:var(--paper);
  font-size:14.5px;
  font-weight:600;
  letter-spacing:.04em;
  line-height:1.2;
  cursor:pointer;
  transition:transform .2s ease,box-shadow .22s ease,background .2s ease,color .2s ease,border-color .2s ease;
}
.btn:hover{transform:translateY(-2px)}
.btn:active{transform:translateY(0)}
.btn--primary{
  background:var(--yellow);
  color:#10130F;
  border-color:var(--yellow);
  box-shadow:0 12px 28px -16px rgba(255,210,74,.95);
}
.btn--primary:hover{background:#FFDC6E;box-shadow:0 18px 34px -14px rgba(255,210,74,.95)}
.btn--ghost{background:transparent;color:var(--paper);border-color:var(--line-strong)}
.btn--ghost:hover{border-color:var(--yellow);color:var(--yellow)}

/* toggle */
.nav-toggle{
  display:none;
  align-items:center;
  gap:9px;
  padding:10px 14px;
  border:1px solid var(--line-strong);
  border-radius:999px;
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.14em;
  color:var(--paper);
  cursor:pointer;
  transition:border-color .2s ease,color .2s ease,background .2s ease;
}
.nav-toggle:hover{border-color:var(--yellow);color:var(--yellow)}
.nav-toggle__box{position:relative;display:block;width:16px;height:12px}
.nav-toggle__bar{
  position:absolute;left:0;width:100%;height:2px;
  background:currentColor;border-radius:2px;
  transition:top .24s ease,transform .24s ease;
}
.nav-toggle__bar:nth-child(1){top:0}
.nav-toggle__bar:nth-child(2){top:10px}
.nav-toggle[aria-expanded="true"] .nav-toggle__bar:nth-child(1){top:5px;transform:rotate(45deg)}
.nav-toggle[aria-expanded="true"] .nav-toggle__bar:nth-child(2){top:5px;transform:rotate(-45deg)}
.nav-toggle__label{display:block}

/* progress */
.site-header__progress{position:absolute;left:0;right:0;bottom:0;height:2px;background:rgba(243,240,231,.08)}
.site-header__progress-bar{
  display:block;height:100%;width:0;
  background:linear-gradient(90deg,var(--cyan),var(--yellow));
  transition:width .12s linear;
}

@media (min-width:1025px){
  .site-nav__foot{display:none}
}
@media (max-width:1024px){
  .site-header__inner{min-height:68px}
  .site-header__cta{display:none}
  .utility-link{display:none}
  .nav-toggle{display:inline-flex}
  .site-nav{
    position:absolute;
    top:100%;left:0;right:0;
    margin:0;
    display:block;
    padding:16px var(--gutter) 26px;
    background:linear-gradient(180deg,#08251D,#0A0E0D 78%);
    border-bottom:1px solid var(--line);
    box-shadow:0 34px 60px -30px rgba(0,0,0,.95);
    max-height:calc(100dvh - 68px);
    overflow-y:auto;
    opacity:0;
    visibility:hidden;
    transform:translateY(-10px);
    pointer-events:none;
    transition:opacity .22s ease,transform .22s ease,visibility .22s ease;
  }
  .site-nav[data-open]{
    opacity:1;
    visibility:visible;
    transform:translateY(0);
    pointer-events:auto;
  }
  .site-nav__list{flex-direction:column;align-items:stretch;gap:0}
  .site-nav__link{
    width:100%;
    padding:15px 2px;
    font-size:17.5px;
    border-bottom:1px solid rgba(243,240,231,.08);
  }
  .site-nav__link::after{display:none}
  .site-nav__link[aria-current="page"]{color:var(--yellow)}
  .site-nav__link[aria-current="page"]::before{color:var(--yellow)}
  .site-nav__foot{display:flex;margin-top:20px;gap:12px}
  .site-nav__cta{width:100%}
}

/* ---------- footer ---------- */
.site-footer{
  position:relative;
  margin-top:clamp(56px,9vw,132px);
  background:linear-gradient(180deg,var(--green-deep) 0%,#08201A 34%,var(--ink) 68%);
  color:var(--paper);
  padding-block:clamp(38px,6vw,76px) 0;
}
.site-footer::before{
  content:"";
  position:absolute;inset:0 0 auto 0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(255,210,74,.85),transparent);
  opacity:.6;
}
.footer__top{
  display:grid;
  grid-template-columns:1fr;
  gap:clamp(30px,5vw,64px);
}
@media (min-width:900px){
  .footer__top{grid-template-columns:minmax(230px,.85fr) 1.65fr;align-items:start}
}
.footer__brand{display:grid;gap:14px;align-content:start}
.footer__brand .eyebrow{color:var(--cyan)}
.footer__wordmark{
  font-family:var(--font-display);
  font-weight:800;
  font-size:clamp(1.9rem,4.4vw,3.1rem);
  line-height:.98;
  letter-spacing:-.03em;
  background:linear-gradient(118deg,var(--paper) 10%,var(--slate) 92%);
  -webkit-background-clip:text;
  background-clip:text;
  color:transparent;
  max-width:none;
}
.footer__tagline{
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.18em;
  color:var(--muted);
}
.footer__grid{
  display:grid;
  grid-template-columns:repeat(auto-fit,minmax(150px,1fr));
  gap:clamp(20px,3vw,36px);
}
.footer__col{min-width:0}
.footer__col-title{
  margin-bottom:14px;
  padding-bottom:10px;
  border-bottom:1px solid rgba(243,240,231,.12);
  font-family:var(--font-mono);
  font-size:11.5px;
  font-weight:700;
  letter-spacing:.2em;
  color:var(--slate);
  text-transform:uppercase;
}
.footer__list{display:flex;flex-direction:column;gap:9px}
.footer__link{
  display:inline-block;
  font-size:14.5px;
  color:var(--muted);
  transition:color .18s ease,transform .18s ease;
}
.footer__link:hover{color:var(--yellow);transform:translateX(3px)}
.footer__plain{
  display:inline-block;
  font-size:14.5px;
  color:var(--muted);
}
.footer__plain::before{content:"·";margin-right:8px;color:rgba(143,166,182,.7)}
.footer__contact{
  display:grid;
  grid-template-columns:1fr;
  gap:18px 28px;
  margin-top:clamp(30px,5vw,54px);
  padding-top:clamp(22px,4vw,34px);
  border-top:1px solid rgba(243,240,231,.12);
}
@media (min-width:760px){
  .footer__contact{grid-template-columns:repeat(3,minmax(0,1fr))}
}
.footer__contact-item{display:grid;gap:5px}
.footer__contact-label{
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.16em;
  color:var(--slate);
  text-transform:uppercase;
}
.footer__contact-value{
  font-size:14.5px;
  color:var(--paper);
  word-break:break-word;
}
.footer__note{
  grid-column:1/-1;
  font-size:13px;
  line-height:1.75;
  color:var(--slate);
  padding:14px 16px;
  border-left:2px solid rgba(42,224,207,.55);
  background:rgba(42,224,207,.06);
  border-radius:0 12px 12px 0;
}
.footer__bottom{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:12px 24px;
  margin-top:clamp(24px,4vw,38px);
  padding-block:20px 28px;
  border-top:1px solid rgba(243,240,231,.12);
}
.footer__meta,
.footer__icp{
  font-family:var(--font-mono);
  font-size:11.5px;
  letter-spacing:.1em;
  color:var(--slate);
}

/* ---------- shared content components ---------- */
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-family:var(--font-mono);
  font-size:11.5px;
  font-weight:700;
  letter-spacing:.16em;
  text-transform:uppercase;
  color:var(--cyan);
}
.eyebrow::before{content:"";width:26px;height:1px;background:currentColor;opacity:.75}

.section{padding-block:clamp(42px,7vw,94px)}
.section__head{display:grid;gap:10px;margin-bottom:clamp(20px,3vw,36px)}
.section__number{
  font-family:var(--font-mono);
  font-size:13px;
  font-weight:700;
  letter-spacing:.26em;
  color:var(--yellow);
}
.section__title{margin-top:2px}

.rule{height:1px;border:0;margin-block:clamp(24px,4vw,48px);background:var(--line)}

.grid{display:grid;gap:clamp(16px,2.4vw,32px)}
.grid--split{grid-template-columns:minmax(0,1fr)}
@media (min-width:900px){
  .grid--split{grid-template-columns:minmax(220px,.62fr) minmax(0,1.62fr);gap:clamp(24px,4vw,56px);align-items:start}
}
.grid--cards{grid-template-columns:repeat(auto-fit,minmax(240px,1fr))}

.card{
  position:relative;
  padding:clamp(18px,2.4vw,28px);
  background:var(--green-panel);
  border:1px solid rgba(243,240,231,.09);
  border-radius:var(--radius-organic);
  transition:border-color .22s ease,box-shadow .22s ease,transform .22s ease;
}
.card:hover{
  transform:translateY(-3px);
  border-color:rgba(255,138,61,.5);
  box-shadow:0 0 0 1px rgba(255,138,61,.16),0 26px 52px -32px rgba(255,138,61,.85);
}
.card--flush{padding:0;overflow:hidden}
.card--flush:hover{transform:translateY(-3px)}

.panel{
  padding:clamp(16px,2.2vw,24px);
  background:linear-gradient(160deg,var(--green-panel),#091A16 78%);
  border:1px solid rgba(42,224,207,.18);
  border-radius:18px;
  box-shadow:var(--shadow-lift);
}

.tag{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:4px 10px;
  border:1px solid rgba(143,166,182,.36);
  border-radius:999px;
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.12em;
  text-transform:uppercase;
  color:var(--slate);
  white-space:nowrap;
}
.tag--live{color:var(--cyan);border-color:rgba(42,224,207,.5);background:rgba(42,224,207,.08)}

.prose{max-width:68ch;color:var(--paper)}
.prose p+p{margin-top:1em}
.prose h2{margin-top:2em;margin-bottom:.6em}
.prose h3{margin-top:1.7em;margin-bottom:.5em}
.prose ul{display:grid;gap:.5em;margin-top:1em}
.prose li{position:relative;padding-left:1.4em;color:var(--muted)}
.prose li::before{content:"—";position:absolute;left:0;color:var(--yellow)}
.prose a{color:var(--cyan);text-decoration:underline;text-underline-offset:3px}
.prose strong{color:var(--paper);font-weight:700}

.breadcrumb{padding-block:16px 0}
.breadcrumb__list{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  font-family:var(--font-mono);
  font-size:11.5px;
  letter-spacing:.1em;
  color:var(--slate);
}
.breadcrumb__item{display:inline-flex;align-items:center;gap:8px}
.breadcrumb__item+.breadcrumb__item::before{content:"/";color:rgba(143,166,182,.5)}
.breadcrumb__link{color:var(--muted);transition:color .18s ease}
.breadcrumb__link:hover{color:var(--yellow)}

/* media blocks */
.media{
  position:relative;
  isolation:isolate;
  overflow:hidden;
  aspect-ratio:16/9;
  border-radius:var(--radius-organic);
  background:linear-gradient(150deg,var(--green-panel),var(--teal-deep) 62%,var(--indigo));
  box-shadow:inset 0 0 0 1px rgba(243,240,231,.08);
}
.media__img,
.media>img,
.media>video{
  width:100%;
  height:100%;
  object-fit:cover;
  display:block;
}
.media--wide{aspect-ratio:21/9}
.media--square{aspect-ratio:1/1}
.media--tall{aspect-ratio:3/4}
@media (max-width:600px){
  .media--wide{aspect-ratio:16/9}
  .media--tall{aspect-ratio:4/5}
}
.media__label{
  position:absolute;
  left:12px;bottom:12px;
  z-index:2;
  padding:4px 10px;
  border-radius:999px;
  background:rgba(10,14,13,.74);
  backdrop-filter:blur(6px);
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.1em;
  color:var(--paper);
}

/* back to top */
.to-top{
  position:fixed;
  right:clamp(14px,3vw,32px);
  bottom:clamp(14px,3vw,32px);
  z-index:75;
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:12px 16px;
  border:1px solid rgba(255,210,74,.45);
  border-radius:999px;
  background:rgba(16,56,44,.92);
  backdrop-filter:blur(8px);
  color:var(--yellow);
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.14em;
  cursor:pointer;
  opacity:0;
  visibility:hidden;
  transform:translateY(10px);
  transition:opacity .24s ease,transform .24s ease,visibility .24s ease,background .2s ease;
}
.to-top[data-visible]{opacity:1;visibility:visible;transform:translateY(0)}
.to-top:hover{background:rgba(255,210,74,.16)}

/* reveal */
[data-reveal]{
  opacity:0;
  transform:translateY(18px);
  transition:opacity .6s ease,transform .6s cubic-bezier(.2,.7,.2,1);
}
[data-reveal][data-revealed]{opacity:1;transform: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;
    scroll-behavior:auto !important;
  }
  [data-reveal]{opacity:1;transform:none;transition:none}
  .card:hover,.btn:hover,.footer__link:hover{transform:none}
}