:root {
  --site-nav-height: 68px;
  --site-ticker-height: 36px;
}

html { scroll-behavior: smooth; scroll-padding-top: calc(var(--site-nav-height) + var(--site-ticker-height) + 12px); }

.site-nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 50;
  height: var(--site-nav-height);
  padding: 14px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  background: var(--ink, #0a0a0a);
  color: var(--paper, #f2ede2);
  border-bottom: 3px solid var(--ink, #0a0a0a);
}
.site-nav .brand { display: flex; align-items: center; gap: 10px; height: 36px; flex: 0 0 auto; }
.site-nav .brand a { display: inline-flex; align-items: center; height: 100%; color: inherit; text-decoration: none; }
.site-nav .brand svg { width: auto; height: 36px; display: block; overflow: visible; }
.site-nav .links { display: flex; gap: 4px; font: 700 11px/1 "JetBrains Mono", monospace; letter-spacing: .15em; text-transform: uppercase; }
.site-nav .links a { padding: 6px 10px; border-radius: 4px; color: inherit; text-decoration: none; white-space: nowrap; }
.site-nav-controls,
.site-nav .right { display: flex; align-items: center; gap: 7px; flex: 0 0 auto; }
.site-nav .lang { display: flex; align-items: center; gap: 5px; cursor: pointer; user-select: none; font: 700 11px/1 "JetBrains Mono", monospace; letter-spacing: .15em; }
.site-nav .lang .l { padding: 3px 7px; border-radius: 3px; color: var(--paper, #f2ede2); opacity: .55; }
html[lang="en"] .site-nav .lang .l.en,
html[lang="zh"] .site-nav .lang .l.zh { background: var(--red, #ff2d2d); color: var(--paper, #f2ede2); opacity: 1; }
.site-nav .menu { width: 36px; height: 36px; flex-direction: column; justify-content: center; align-items: center; gap: 5px; border: 2px solid var(--paper, #f2ede2); border-radius: 4px; background: transparent; color: inherit; cursor: pointer; }
.site-nav .menu i { display: block; width: 16px; height: 2.5px; background: var(--paper, #f2ede2); transition: transform 250ms, opacity 180ms; }
.site-nav .menu.open i:nth-child(1) { transform: translateY(7.5px) rotate(45deg); }
.site-nav .menu.open i:nth-child(2) { opacity: 0; }
.site-nav .menu.open i:nth-child(3) { transform: translateY(-7.5px) rotate(-45deg); }

.site-ticker {
  position: fixed;
  top: var(--site-nav-height);
  left: 0;
  right: 0;
  z-index: 49;
  height: var(--site-ticker-height);
  display: flex;
  align-items: center;
  overflow: hidden;
  background: var(--red, #ff2d2d);
  color: var(--paper, #f2ede2);
  border-bottom: 3px solid var(--ink, #0a0a0a);
}
.site-ticker .track { display: flex; align-items: center; gap: 40px; padding-left: 40px; white-space: nowrap; animation: site-ticker-move 40s linear infinite; font: 700 12px/1 "JetBrains Mono", monospace; letter-spacing: .2em; text-transform: uppercase; }
.site-ticker .track > span { display: inline-flex; align-items: center; gap: 16px; }
.site-ticker .track > span::after { content: "◆"; color: var(--ink, #0a0a0a); }
@keyframes site-ticker-move { to { transform: translateX(-50%); } }

.ecosystem-shell > main { padding-top: calc(var(--site-nav-height) + var(--site-ticker-height)); }
.ecosystem-shell .site-menu { display: none; }

.site-nav .links { position: relative; isolation: isolate; }
.site-menu { isolation: isolate; }

.site-nav .links > a,
.site-menu > a { position: relative; z-index: 2; transition: color 180ms ease, transform 180ms ease; }

.site-nav .links > a:hover,
.site-nav .links > a:focus-visible,
.site-nav .links > a.is-active,
.site-menu > a:hover,
.site-menu > a:focus-visible,
.site-menu > a.is-active { background: var(--red, #ff2d2d); color: var(--paper, #f2ede2); }

.site-nav-ready .site-nav .links > a.is-active,
.site-nav-ready .site-menu > a.is-active { background: transparent; }

.site-nav .links > a:active,
.site-menu > a:active { transform: scale(.97); }

.site-nav .links > a:focus-visible,
.site-menu > a:focus-visible,
.site-nav button:focus-visible,
.site-nav [role="button"]:focus-visible { outline: 2px solid var(--paper, #f2ede2); outline-offset: 2px; }

.nav-fluid,
.menu-fluid {
  position: absolute;
  top: 0;
  left: 0;
  z-index: 1;
  display: block;
  pointer-events: none;
  opacity: 0;
  background: var(--red, #ff2d2d);
  will-change: transform;
}

.nav-fluid { border-radius: 4px; transform-origin: center; }
.menu-fluid { border: 2px solid var(--paper, #f2ede2); transform-origin: center; }
.nav-fluid.is-visible,
.menu-fluid.is-visible { opacity: 1; }

.nav-fluid::before,
.nav-fluid::after,
.menu-fluid::before,
.menu-fluid::after {
  content: "";
  position: absolute;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--red, #ff2d2d);
  opacity: 0;
}

.nav-fluid::before { right: -3px; top: 4px; }
.nav-fluid::after { left: -3px; bottom: 3px; width: 5px; height: 5px; }
.menu-fluid::before { right: 14%; bottom: -4px; }
.menu-fluid::after { left: 22%; top: -4px; width: 6px; height: 6px; }
.nav-fluid.is-flowing::before { animation: nav-drop-forward 440ms cubic-bezier(.2,.85,.25,1); }
.nav-fluid.is-flowing::after { animation: nav-drop-back 380ms cubic-bezier(.2,.85,.25,1); }
.menu-fluid.is-flowing::before { animation: menu-drop-forward 440ms cubic-bezier(.2,.85,.25,1); }
.menu-fluid.is-flowing::after { animation: menu-drop-back 380ms cubic-bezier(.2,.85,.25,1); }

@keyframes nav-drop-forward {
  0% { opacity: 0; transform: translateX(0) scale(.4); }
  35% { opacity: 1; }
  100% { opacity: 0; transform: translateX(calc(var(--flow-direction, 1) * 20px)) scale(1.35); }
}
@keyframes nav-drop-back {
  0% { opacity: 0; transform: translateX(0) scale(.4); }
  30% { opacity: .9; }
  100% { opacity: 0; transform: translateX(calc(var(--flow-direction, 1) * -12px)) scale(1.1); }
}
@keyframes menu-drop-forward {
  0% { opacity: 0; transform: translateY(0) scale(.4); }
  35% { opacity: 1; }
  100% { opacity: 0; transform: translateY(calc(var(--flow-direction, 1) * 18px)) scale(1.35); }
}
@keyframes menu-drop-back {
  0% { opacity: 0; transform: translateY(0) scale(.4); }
  30% { opacity: .9; }
  100% { opacity: 0; transform: translateY(calc(var(--flow-direction, 1) * -12px)) scale(1.1); }
}

.site-page-transition {
  position: fixed;
  inset: 0;
  z-index: 90;
  pointer-events: none;
  background: var(--red, #ff2d2d);
  clip-path: circle(0 at var(--transition-x, 50%) var(--transition-y, 34px));
}
.site-page-transition::after {
  content: "ONE ORIGIN";
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%) skewX(-8deg);
  color: var(--paper, #f2ede2);
  font: 900 clamp(42px, 10vw, 144px)/.82 "Archivo", sans-serif;
  letter-spacing: -.06em;
  opacity: 0;
}
.site-page-transition.is-covering { animation: site-cover 500ms cubic-bezier(.75,0,.2,1) forwards; }
.site-page-transition.is-covering::after { animation: site-mark-in 300ms 140ms ease forwards; }
.site-page-transition.is-revealing { animation: site-reveal 620ms cubic-bezier(.75,0,.2,1) forwards; }
.site-page-transition.is-revealing::after { animation: site-mark-out 440ms ease forwards; }
@keyframes site-cover { to { clip-path: circle(160vmax at var(--transition-x, 50%) var(--transition-y, 34px)); } }
@keyframes site-reveal {
  from { clip-path: circle(160vmax at var(--transition-x, 50%) var(--transition-y, 34px)); }
  to { clip-path: circle(0 at var(--transition-x, 50%) var(--transition-y, 34px)); }
}
@keyframes site-mark-in { to { opacity: 1; transform: translate(-50%, -50%) skewX(0); } }
@keyframes site-mark-out { from { opacity: 1; } to { opacity: 0; transform: translate(-50%, -58%) skewX(8deg); } }

@media (min-width: 761px) {
  .site-nav .menu { display: none !important; }
  .site-menu { display: none !important; }
}

@media (max-width: 760px) {
  :root { --site-nav-height: 56px; --site-ticker-height: 30px; }
  .site-nav { height: var(--site-nav-height); padding: 0 14px; border-bottom-width: 2.5px; }
  .site-nav .brand { height: 32px; }
  .site-nav .brand svg { height: 32px; }
  .site-nav .lang { font-size: 10px; gap: 3px; }
  .site-nav .lang .l { padding: 3px 6px; }
  .site-nav .links { display: none !important; }
  .site-nav .menu { display: flex; }
  .site-ticker { border-bottom-width: 2.5px; }
  .site-ticker .track { gap: 28px; padding-left: 28px; animation-duration: 30s; font-size: 10.5px; letter-spacing: .18em; }
  .site-ticker .track > span { gap: 12px; }
  .ecosystem-shell .site-menu {
    position: fixed;
    top: calc(var(--site-nav-height) + var(--site-ticker-height));
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 48;
    padding: 20px 22px 40px;
    display: flex;
    flex-direction: column;
    overflow: auto;
    transform: translateY(-110%);
    transition: transform 350ms cubic-bezier(.6,.05,.2,1);
    background: var(--ink, #0a0a0a);
    color: var(--paper, #f2ede2);
  }
  .ecosystem-shell .site-menu.open { transform: translateY(0); }
  .site-menu > a { display: flex; justify-content: space-between; align-items: baseline; padding: 18px 10px !important; border-bottom: 1.5px dashed rgba(242,237,226,.25); color: inherit; text-decoration: none; font-size: 38px; font-weight: 900; font-style: italic; letter-spacing: -.03em; line-height: 1; }
  .site-menu > a .n { font: 700 11px/1 "JetBrains Mono", monospace; letter-spacing: .25em; opacity: .6; }
  .site-menu .foot { position: relative; z-index: 2; margin-top: auto; padding-top: 28px; display: flex; justify-content: space-between; font: 400 11px/1.4 "JetBrains Mono", monospace; letter-spacing: .2em; text-transform: uppercase; opacity: .65; }
  html[lang="zh"] .site-menu > a { font-family: "Noto Serif SC", serif; font-size: 34px; font-style: normal; letter-spacing: -.01em; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .nav-fluid::before, .nav-fluid::after, .menu-fluid::before, .menu-fluid::after { display: none; }
  .site-page-transition { display: none; }
}