:root{
  --night:#061422;
  --stand:#0C2438;
  --pitch:#146B3A;
  --pitch-lit:#2FA35F;
  --pitch-deep:#0C3B24;
  --volt:#D8FF48;
  --ember:#FF9A4D;
  --mist:#F4F7F2;
  --sage:#9BB5A5;
  --ink:#04101A;
  --font-display:"Barlow Condensed","DIN Alternate","PingFang SC","Source Han Sans SC","Noto Sans SC","Microsoft YaHei",system-ui,sans-serif;
  --font-body:"Source Han Sans SC","Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  --font-mono:"JetBrains Mono","SFMono-Regular",ui-monospace,"Cascadia Mono",Consolas,"Courier New",monospace;
  --shell:1280px;
  --gutter:20px;
  --radius-lg:20px;
  --radius-md:14px;
  --line:rgba(155,181,165,.16);
  --line-strong:rgba(155,181,165,.34);
  --ease:cubic-bezier(.22,.9,.3,1);
}
@media (max-width:640px){
  :root{--gutter:16px}
}

*,*::before,*::after{box-sizing:border-box}
*{margin:0}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  background:var(--night);
  color:var(--mist);
  font-family:var(--font-body);
  font-size:16px;
  line-height:1.7;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
h1,h2,h3,h4,h5{font-family:var(--font-display);font-weight:800;line-height:1.06;letter-spacing:-.01em}
p{margin:0}
ul,ol{list-style:none;padding:0}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;padding:0;cursor:pointer}
img,picture,svg,video{display:block;max-width:100%;height:auto}
strong{font-weight:700}
:focus-visible{outline:2px solid var(--volt);outline-offset:3px}
::selection{background:var(--volt);color:var(--ink)}

.container{width:min(var(--shell),100% - var(--gutter) * 2);margin-inline:auto}
.mono-path{font-family:var(--font-mono);font-size:12px;letter-spacing:.06em;color:var(--sage)}

.skip-link{
  position:fixed;top:8px;left:8px;z-index:300;
  padding:10px 18px;border-radius:8px;
  background:var(--volt);color:var(--ink);
  font-size:14px;font-weight:700;letter-spacing:.04em;
  transform:translateY(-180%);
  transition:transform .18s var(--ease);
}
.skip-link:focus,.skip-link:focus-visible{transform:translateY(0)}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(6,20,34,.94);
  border-bottom:1px solid var(--line);
  -webkit-backdrop-filter:blur(12px);
  backdrop-filter:blur(12px);
}
.site-header__bar{
  display:flex;align-items:center;justify-content:space-between;
  gap:20px;
  width:min(var(--shell),100% - var(--gutter) * 2);
  margin-inline:auto;
  min-height:70px;
  padding-block:8px;
}
.brand{display:inline-flex;align-items:center;gap:12px;min-height:44px;flex:none}
.brand__mark{
  display:flex;flex-direction:column;justify-content:space-between;
  width:36px;height:36px;padding:8px 7px;flex:none;
  border-radius:11px;
  background:linear-gradient(152deg,var(--pitch-lit),var(--pitch) 54%,var(--pitch-deep));
  box-shadow:inset 0 0 0 1px rgba(216,255,72,.24);
}
.brand__mark-line{display:block;height:2px;border-radius:2px;background:var(--volt);opacity:.9;transition:width .22s var(--ease)}
.brand__mark-line:nth-child(2){width:72%;background:var(--mist);opacity:.72}
.brand__mark-line:nth-child(3){width:44%}
.brand:hover .brand__mark-line:nth-child(2){width:100%}
.brand:hover .brand__mark-line:nth-child(3){width:80%}
.brand__text{display:flex;flex-direction:column;line-height:1}
.brand__name{font-family:var(--font-display);font-weight:800;font-size:19px;letter-spacing:.02em;color:var(--mist)}
.brand__tag{font-family:var(--font-mono);font-size:10px;letter-spacing:.24em;color:var(--sage);margin-top:6px}

.nav-toggle{
  display:none;align-items:center;gap:10px;
  min-height:44px;padding:0 14px;
  border:1px solid var(--line-strong);border-radius:999px;
  color:var(--mist);
  font-family:var(--font-mono);font-size:11px;letter-spacing:.16em;
  transition:border-color .18s var(--ease),color .18s var(--ease);
}
.nav-toggle:hover{border-color:var(--volt);color:var(--volt)}
.nav-toggle__bars{display:flex;flex-direction:column;justify-content:space-between;width:18px;height:14px}
.nav-toggle__bars span{display:block;height:2px;border-radius:2px;background:currentColor;transition:transform .22s var(--ease),opacity .18s var(--ease)}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars span:nth-child(1){transform:translateY(6px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}

.site-nav{display:flex;align-items:center;gap:clamp(8px,1.6vw,26px)}
.site-nav__list{display:flex;align-items:center;gap:clamp(2px,1.1vw,16px)}
.site-nav__link{
  position:relative;
  display:inline-flex;align-items:center;
  min-height:44px;padding:0 7px;
  font-size:13.5px;letter-spacing:.05em;
  color:rgba(244,247,242,.76);
  transition:color .18s var(--ease);
}
.site-nav__link::after{
  content:"";position:absolute;left:7px;right:7px;bottom:9px;
  height:2px;border-radius:2px;background:var(--volt);
  transform:scaleX(0);transform-origin:left center;
  transition:transform .22s var(--ease);
}
.site-nav__link:hover{color:var(--mist)}
.site-nav__link:hover::after{transform:scaleX(1)}
.site-nav__link[aria-current="page"]{color:var(--volt)}
.site-nav__link[aria-current="page"]::after{transform:scaleX(1)}
.site-nav__cta{flex:none}

.scroll-meter{height:2px;background:rgba(155,181,165,.14);overflow:hidden}
.scroll-meter__fill{
  display:block;height:100%;width:100%;
  background:linear-gradient(90deg,var(--pitch-lit),var(--volt));
  transform:scaleX(0);transform-origin:left center;
}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 22px;
  border:1px solid transparent;border-radius:999px;
  font-size:14px;font-weight:700;letter-spacing:.04em;
  text-align:center;
  transition:background-color .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease),transform .2s var(--ease);
}
.btn--pitch{background:var(--pitch);color:var(--mist);box-shadow:inset 0 0 0 1px rgba(47,163,95,.6)}
.btn--pitch:hover{background:var(--pitch-lit);color:var(--ink)}
.btn--ghost{background:transparent;color:var(--mist);border-color:var(--line-strong)}
.btn--ghost:hover{border-color:var(--volt);color:var(--volt)}
.btn--volt{background:var(--volt);color:var(--ink)}
.btn--volt:hover{background:var(--mist);color:var(--ink)}
.btn:active{transform:translateY(1px)}

/* ---------- footer ---------- */
.site-footer{
  position:relative;
  margin-top:0;
  background:var(--night);
  color:var(--mist);
  border-top:1px solid rgba(47,163,95,.32);
  overflow:hidden;
}
.site-footer::before{
  content:"";position:absolute;top:0;right:0;
  width:min(560px,70vw);height:240px;
  background:radial-gradient(circle at 100% 0,rgba(47,163,95,.24),rgba(47,163,95,0) 70%);
  pointer-events:none;
}
.site-footer__stage{
  position:relative;
  display:grid;grid-template-columns:minmax(0,1fr);
  gap:clamp(32px,4vw,44px);
  width:min(var(--shell),100% - var(--gutter) * 2);
  margin-inline:auto;
  padding-block:clamp(44px,6vw,78px) clamp(28px,4vw,44px);
}
.site-footer__intro{display:flex;flex-direction:column;align-items:flex-start;gap:16px}
.site-footer__eyebrow{
  font-family:var(--font-mono);font-size:11px;letter-spacing:.24em;
  color:var(--pitch-lit);
}
.site-footer__summary{font-size:17px;line-height:1.65;max-width:23em;color:rgba(244,247,242,.86)}
.site-footer__nav{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:28px 20px}
.site-footer__col{display:flex;flex-direction:column;gap:10px}
.site-footer__col-title{
  font-family:var(--font-display);font-size:12px;font-weight:700;
  letter-spacing:.22em;text-transform:uppercase;color:var(--sage);
}
.site-footer__links{display:flex;flex-direction:column;gap:0}
.site-footer__link{
  display:inline-flex;align-items:center;
  min-height:44px;
  font-size:15px;color:rgba(244,247,242,.8);
  transition:color .18s var(--ease);
}
.site-footer__link::before{
  content:"";display:block;width:0;height:1px;
  background:var(--volt);margin-right:0;
  transition:width .2s var(--ease),margin-right .2s var(--ease);
}
.site-footer__link:hover{color:var(--volt)}
.site-footer__link:hover::before{width:14px;margin-right:8px}
.site-footer__link:focus-visible::before{width:14px;margin-right:8px}

.site-footer__contact{
  position:relative;
  display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));
  gap:20px 24px;
  width:min(var(--shell),100% - var(--gutter) * 2);
  margin-inline:auto;
  padding-block:24px;
  border-top:1px solid var(--line);
}
.site-footer__contact-item{display:flex;flex-direction:column;gap:4px;min-width:0}
.site-footer__contact-label{
  font-family:var(--font-mono);font-size:10px;letter-spacing:.22em;
  color:var(--sage);
}
.site-footer__contact-value{font-size:15px;color:rgba(244,247,242,.92);overflow-wrap:anywhere}
.site-footer__note{
  width:min(var(--shell),100% - var(--gutter) * 2);
  margin:0 auto;padding-bottom:22px;
  font-family:var(--font-mono);font-size:12px;line-height:1.9;letter-spacing:.02em;
  color:var(--sage);
}
.site-footer__base{
  position:relative;
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;
  gap:14px 20px;
  width:min(var(--shell),100% - var(--gutter) * 2);
  margin-inline:auto;
  padding-block:20px 10px;
  border-top:1px solid var(--line);
}
.site-footer__copy{margin:0;font-size:13px;color:var(--sage)}
.site-footer__copy span{font-family:var(--font-mono)}
.site-footer__icp{font-family:var(--font-mono);font-size:12px;letter-spacing:.06em;color:var(--sage)}
.to-top{
  display:inline-flex;align-items:center;gap:8px;
  min-height:44px;padding:0 18px;
  border:1px solid var(--line-strong);border-radius:999px;
  font-family:var(--font-mono);font-size:11px;letter-spacing:.16em;
  color:var(--mist);
  transition:border-color .2s var(--ease),color .2s var(--ease),background-color .2s var(--ease);
}
.to-top::after{content:"↑";font-size:14px;line-height:1}
.to-top:hover{border-color:var(--volt);color:var(--ink);background:var(--volt)}
.site-footer__word{
  position:relative;
  margin:0;padding:0 10px 8px;
  text-align:center;
  font-family:var(--font-display);font-weight:800;
  font-size:clamp(44px,15vw,190px);
  line-height:.82;letter-spacing:-.02em;
  white-space:nowrap;
  color:rgba(47,163,95,.13);
  -webkit-text-stroke:1px rgba(47,163,95,.26);
  user-select:none;pointer-events:none;
}

/* ---------- shared content pieces ---------- */
.eyebrow{
  display:inline-flex;align-items:center;gap:10px;
  font-family:var(--font-mono);font-size:11px;letter-spacing:.22em;
  text-transform:uppercase;color:var(--pitch-lit);
}
.eyebrow::before{content:"";width:18px;height:2px;border-radius:2px;background:var(--volt)}

.breadcrumbs{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  padding-block:16px;
  font-family:var(--font-mono);font-size:12px;letter-spacing:.06em;color:var(--sage);
}
.breadcrumbs__item{display:inline-flex;align-items:center;gap:8px}
.breadcrumbs__item + .breadcrumbs__item::before{content:"/";color:rgba(155,181,165,.5)}
.breadcrumbs__link{
  color:var(--sage);
  text-decoration:underline;
  text-decoration-color:rgba(155,181,165,.45);
  text-underline-offset:3px;
  transition:color .18s var(--ease),text-decoration-color .18s var(--ease);
}
.breadcrumbs__link:hover{color:var(--volt);text-decoration-color:var(--volt)}

.section{padding-block:clamp(40px,6vw,80px)}
.section__head{
  display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;
  gap:16px 32px;
  margin-bottom:clamp(20px,3vw,36px);
}
.section__title{font-size:clamp(26px,3.6vw,44px)}
.section__note{max-width:40ch;font-size:15px;line-height:1.7;color:var(--sage)}

.grid{display:grid;gap:clamp(16px,2vw,28px)}
.grid--split{grid-template-columns:minmax(0,1fr)}
.grid--triad{grid-template-columns:minmax(0,1fr)}
@media (min-width:900px){
  .grid--split{grid-template-columns:minmax(0,7fr) minmax(0,4fr)}
}
@media (min-width:720px){
  .grid--triad{grid-template-columns:repeat(3,minmax(0,1fr))}
}

.panel{
  position:relative;
  padding:clamp(18px,2.4vw,28px);
  background:var(--stand);
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
}
.card{
  display:flex;flex-direction:column;gap:10px;
  padding:clamp(18px,2.4vw,26px);
  background:var(--stand);
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  transition:border-color .2s var(--ease),transform .2s var(--ease);
}
.card:hover{border-color:rgba(47,163,95,.55);transform:translateY(-2px)}
.card__label{
  font-family:var(--font-mono);font-size:11px;letter-spacing:.18em;
  text-transform:uppercase;color:var(--pitch-lit);
}
.card__title{font-size:clamp(19px,2vw,24px);font-weight:800}
.card__text{font-size:15px;line-height:1.7;color:rgba(244,247,242,.76)}

.metric{display:flex;flex-direction:column;gap:4px}
.metric__value{
  font-family:var(--font-display);font-weight:800;
  font-size:clamp(44px,7vw,96px);
  line-height:.86;letter-spacing:-.02em;
  color:var(--volt);
  font-variant-numeric:tabular-nums;
}
.metric__label{
  font-family:var(--font-mono);font-size:11px;letter-spacing:.18em;
  text-transform:uppercase;color:var(--sage);
}

.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 11px;border-radius:999px;
  border:1px solid rgba(155,181,165,.3);
  font-family:var(--font-mono);font-size:11px;letter-spacing:.12em;
  color:var(--sage);
}
.tag--volt{background:var(--volt);border-color:var(--volt);color:var(--ink)}
.tag--ember{color:var(--ember);border-color:rgba(255,154,77,.46)}

.media-frame{
  position:relative;overflow:hidden;
  aspect-ratio:16/10;
  border-radius:var(--radius-lg);
  border:1px solid rgba(155,181,165,.18);
  background:linear-gradient(142deg,var(--pitch-deep),var(--stand) 58%,var(--night));
}
.media-frame::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:repeating-linear-gradient(116deg,rgba(216,255,72,.07) 0 1px,rgba(216,255,72,0) 1px 28px);
}
.media-frame--wide{aspect-ratio:21/9}
.media-frame--tall{aspect-ratio:3/4}
.media-frame__inner{position:absolute;inset:0}
.media-frame__img{width:100%;height:100%;object-fit:cover}

.tabs{display:flex;flex-direction:column;gap:clamp(16px,2vw,24px)}
.tabs__list{
  display:flex;flex-wrap:wrap;gap:8px;
  padding:6px;width:fit-content;max-width:100%;
  background:var(--stand);
  border:1px solid var(--line);
  border-radius:999px;
}
.tabs__tab{
  display:inline-flex;align-items:center;
  min-height:44px;padding:0 18px;
  border-radius:999px;
  font-size:14px;font-weight:700;letter-spacing:.03em;
  color:var(--sage);
  transition:background-color .2s var(--ease),color .2s var(--ease);
}
.tabs__tab:hover{color:var(--mist)}
.tabs__tab[aria-selected="true"]{background:var(--pitch);color:var(--mist)}
.tabs__panel{
  padding:clamp(18px,2.4vw,28px);
  background:var(--stand);
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
}
.tabs__panel[hidden]{display:none}

.rail{position:relative}
.rail__track{
  display:flex;gap:clamp(12px,1.6vw,20px);
  overflow-x:auto;
  padding-bottom:14px;
  scroll-snap-type:x mandatory;
  scrollbar-width:thin;
  scrollbar-color:var(--pitch) transparent;
}
.rail__track > *{flex:0 0 clamp(240px,32vw,320px);scroll-snap-align:start}
.rail__track::-webkit-scrollbar{height:6px}
.rail__track::-webkit-scrollbar-track{background:rgba(155,181,165,.14);border-radius:999px}
.rail__track::-webkit-scrollbar-thumb{background:var(--pitch);border-radius:999px}

.stack{display:flex;flex-direction:column;border-top:1px solid var(--line)}
.stack__item{
  display:grid;grid-template-columns:auto minmax(0,1fr);
  gap:16px;align-items:baseline;
  padding-block:18px;
  border-bottom:1px solid var(--line);
}
.stack__index{font-family:var(--font-mono);font-size:12px;letter-spacing:.14em;color:var(--pitch-lit)}

[data-reveal]{opacity:0;transform:translateY(14px);transition:opacity .5s var(--ease),transform .5s var(--ease)}
[data-reveal].is-visible{opacity:1;transform:none}

/* ---------- responsive shell ---------- */
@media (max-width:1080px) and (min-width:901px){
  .brand__name{font-size:17px}
  .site-nav__link{font-size:12.5px;padding:0 5px}
  .site-nav__link::after{left:5px;right:5px}
  .btn{padding:0 16px;font-size:13px}
}
@media (min-width:880px){
  .site-footer__stage{grid-template-columns:minmax(0,.92fr) minmax(0,1.45fr);gap:clamp(40px,6vw,72px)}
  .site-footer__nav{grid-template-columns:repeat(3,minmax(0,1fr));gap:28px}
}
@media (max-width:900px){
  .site-header{background:var(--night);-webkit-backdrop-filter:none;backdrop-filter:none}
  .site-header__bar{gap:12px;min-height:62px}
  .nav-toggle{display:inline-flex}
  .site-nav{
    position:fixed;left:0;right:0;bottom:0;z-index:90;
    display:flex;flex-direction:column;align-items:stretch;gap:0;
    padding:16px var(--gutter) calc(18px + env(safe-area-inset-bottom));
    background:var(--stand);
    border-top:1px solid rgba(47,163,95,.55);
    border-radius:22px 22px 0 0;
    box-shadow:0 -24px 64px rgba(4,16,26,.62);
    max-height:88vh;overflow-y:auto;
    transform:translateY(112%);
    transition:transform .28s var(--ease);
  }
  .site-nav[data-open]{transform:translateY(0)}
  .site-nav__list{flex-direction:column;align-items:stretch;gap:0;counter-reset:stand}
  .site-nav__item{
    display:flex;align-items:center;gap:14px;
    counter-increment:stand;
    border-bottom:1px solid var(--line);
  }
  .site-nav__item::before{
    content:counter(stand,decimal-leading-zero);
    font-family:var(--font-mono);font-size:11px;letter-spacing:.12em;
    color:var(--sage);min-width:22px;
  }
  .site-nav__link{flex:1;min-height:54px;font-size:16px;padding:0;letter-spacing:.03em}
  .site-nav__link::after{left:0;right:0;bottom:12px}
  .site-nav__cta{width:100%;margin-top:16px}
  body.nav-open{overflow:hidden}
}
@media (max-width:600px){
  .site-footer__nav{grid-template-columns:repeat(2,minmax(0,1fr))}
  .site-footer__contact{grid-template-columns:minmax(0,1fr)}
  .site-footer__base{justify-content:flex-start}
  .to-top{margin-left:auto}
}
@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;transform:none}
  .card:hover{transform:none}
}