@font-face {
  font-family: "Instrument Sans";
  src: url("fonts/instrument-sans-400.ttf") format("truetype");
  font-style: normal;
  font-weight: 400;
  font-display: swap;
}

@font-face {
  font-family: "Instrument Sans";
  src: url("fonts/instrument-sans-500.ttf") format("truetype");
  font-style: normal;
  font-weight: 500;
  font-display: swap;
}

@font-face {
  font-family: "Instrument Sans";
  src: url("fonts/instrument-sans-600.ttf") format("truetype");
  font-style: normal;
  font-weight: 600;
  font-display: swap;
}

@font-face {
  font-family: "Instrument Sans";
  src: url("fonts/instrument-sans-700.ttf") format("truetype");
  font-style: normal;
  font-weight: 700;
  font-display: swap;
}

@font-face {
  font-family: "Instrument Serif";
  src: url("fonts/instrument-serif-400.ttf") format("truetype");
  font-style: normal;
  font-weight: 400;
  font-display: swap;
}

@font-face {
  font-family: "Instrument Serif";
  src: url("fonts/instrument-serif-italic.ttf") format("truetype");
  font-style: italic;
  font-weight: 400;
  font-display: swap;
}

:root {
  --ink: #080808;
  --paper: #ffffff;
  --soft: #f3f3ef;
  --muted: #5b5b58;
  --line: #d8d8d2;
  --signal: #0a67ff;
  --page-edge: clamp(24px, 7.3vw, 116px);
  --section-space: clamp(100px, 11vw, 170px);
  --sans: "Instrument Sans", "PingFang SC", "Noto Sans SC", sans-serif;
  --serif: "Instrument Serif", "Noto Serif SC", "Songti SC", serif;
}

* { box-sizing: border-box; }
.mobile-break { display: none; }

html { scroll-padding-top: 130px; }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans) !important;
  font-feature-settings: "ss01" 1, "ss02" 1;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

.font-serif { font-family: var(--serif) !important; }
.font-sans, .font-mono { font-family: var(--sans) !important; }

body > div { background: var(--paper) !important; color: var(--ink) !important; }

.site-nav {
  position: absolute !important;
  height: auto;
  padding: 24px clamp(24px, 3.4vw, 54px);
  background: transparent !important;
  border: 0 !important;
  backdrop-filter: none !important;
  width: 100vw;
  z-index: 2;
}

.site-nav__inner {
  max-width: none !important;
  min-height: 72px;
  padding: 0 !important;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.site-nav__inner > div:last-child { display: flex; align-items: center; margin-left: 0; }

.brand {
  display: inline-flex;
  align-items: center;
  gap: 16px;
  color: var(--ink);
  text-decoration: none;
}

.brand-mark {
  display: block;
  width: 72px;
  height: 72px;
  overflow: visible;
}

.brand-name {
  max-width: 92px;
  font-size: 22px;
  font-weight: 600;
  letter-spacing: -0.055em;
  line-height: 0.88;
}

.site-nav__links {
  margin-left: auto;
  gap: clamp(30px, 3.6vw, 58px) !important;
  font-size: 19px !important;
  font-weight: 600 !important;
  letter-spacing: -0.035em;
  color: var(--ink) !important;
}

.site-nav__links > :not([hidden]) ~ :not([hidden]) { margin-left: 0 !important; }

.site-nav__links a {
  position: relative;
  color: var(--ink) !important;
  text-decoration: none;
}

.site-nav__links a::after {
  position: absolute;
  right: 0;
  bottom: -7px;
  left: 0;
  height: 1px;
  background: var(--signal);
  content: "";
  transform: scaleX(0);
  transform-origin: right;
  transition: transform 220ms ease;
}

.site-nav__links a:hover::after,
.site-nav__links a:focus-visible::after {
  transform: scaleX(1);
  transform-origin: left;
}

.locale-link {
  margin-left: clamp(22px, 2.6vw, 42px);
  border: 1px solid var(--ink);
  border-radius: 999px;
  padding: 8px 12px !important;
  color: var(--ink) !important;
  font-size: 12px !important;
  font-weight: 600 !important;
  letter-spacing: .08em;
  text-transform: uppercase;
}

.join-link { display: none !important; }

.hero {
  position: relative;
  overflow: hidden;
  min-height: 100svh !important;
  max-width: none !important;
  padding: clamp(200px, 28vh, 320px) var(--page-edge) clamp(110px, 19vh, 198px) !important;
  display: flex;
  justify-content: flex-end !important;
  background: var(--paper);
}

.hero__content { position: relative; z-index: 1; width: 100%; max-width: 760px !important; }
.hero__eyebrow, .hero__topics { display: none !important; }

.pointer-field {
  position: absolute;
  pointer-events: none;
  user-select: none;
}

.pointer-field svg,
.pointer-field canvas { display: block; width: 100%; height: 100%; overflow: visible; }
.pointer-field__lines { fill: none; stroke: currentColor; stroke-width: 1.15; vector-effect: non-scaling-stroke; }
.pointer-field__nodes { fill: var(--paper); stroke: currentColor; stroke-width: 1.15; vector-effect: non-scaling-stroke; }
.pointer-field__focus { fill: var(--signal); stroke: var(--signal); }
.pointer-field__orbit { fill: none; stroke: var(--signal); stroke-dasharray: 2 4; }

.pointer-field--hero {
  inset: 0;
  width: 100%;
  height: 100%;
  color: var(--ink);
  opacity: 1;
}

.pointer-field--hero .pointer-field__lines { opacity: .22; }
.pointer-field--hero .pointer-field__nodes > circle:not(.pointer-field__focus):not(.pointer-field__orbit) { opacity: .24; }
.pointer-field--hero .pointer-field__focus { opacity: .9; }
.pointer-field--hero .pointer-field__orbit { opacity: .72; }

.pointer-field--hero::after { display: none; }

.pointer-cursor {
  position: fixed;
  top: -15px;
  left: -15px;
  z-index: 9999;
  width: 30px;
  height: 30px;
  opacity: 0;
  pointer-events: none;
  mix-blend-mode: difference;
  transition: opacity 120ms ease;
  background: transparent !important;
}

.pointer-cursor.is-visible { opacity: 1; }

.pointer-cursor::before,
.pointer-cursor::after {
  position: absolute;
  top: 50%;
  left: 50%;
  background: #fff;
  content: "";
  transform: translate(-50%, -50%);
}

.pointer-cursor::before { width: 30px; height: 1px; }
.pointer-cursor::after { width: 1px; height: 30px; }

.pointer-cursor > span {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: #fff;
  transform: translate(-50%, -50%);
}

.pointer-cursor__coordinate {
  position: absolute;
  top: 21px;
  left: 21px;
  display: none;
  width: max-content;
  color: #fff;
  font-family: var(--sans);
  font-size: 10px;
  font-weight: 500;
  letter-spacing: .04em;
  line-height: 1;
  white-space: nowrap;
}

.pointer-cursor.has-coordinate .pointer-cursor__coordinate { display: block; }

@media (pointer: fine) {
  html.pointer-cursor-enabled,
  html.pointer-cursor-enabled * { cursor: none !important; }
}

.hero h1 {
  margin: 0 0 34px !important;
  max-width: 760px;
  font-family: var(--serif) !important;
  font-size: clamp(64px, 6.4vw, 104px) !important;
  font-weight: 400 !important;
  letter-spacing: -0.047em !important;
  line-height: .96 !important;
}

html[lang="zh-CN"] .hero h1 {
  max-width: 760px;
  font-family: var(--serif) !important;
  font-size: clamp(52px, 5.2vw, 78px) !important;
  font-weight: 400 !important;
  letter-spacing: -0.055em !important;
  line-height: 1.04 !important;
}

.hero p {
  max-width: 670px !important;
  margin: 0 !important;
  color: var(--muted) !important;
  font-size: clamp(19px, 1.55vw, 25px) !important;
  font-weight: 400;
  letter-spacing: -0.02em;
  line-height: 1.16 !important;
  overflow-wrap: anywhere;
}

section:not(.hero), footer {
  padding-right: var(--page-edge) !important;
  padding-left: var(--page-edge) !important;
}

section:not(.hero) > div, footer > div { max-width: 1368px !important; }

#vision {
  padding-top: clamp(100px, 12vw, 190px) !important;
  padding-bottom: clamp(100px, 12vw, 190px) !important;
  border-top: 1px solid var(--ink);
  background: var(--paper) !important;
}

#vision h2,
#research h2,
#activities h2,
footer h2 {
  font-family: var(--serif) !important;
  font-weight: 400 !important;
  letter-spacing: -0.045em !important;
  line-height: .98 !important;
}

#vision h2::before,
#research h2::before,
#activities > div > div:first-child > h2::before,
#governance > h2::before,
footer h2::before {
  display: block;
  margin-bottom: 24px;
  color: var(--signal);
  font-family: var(--sans);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: .14em;
  line-height: 1;
}

#vision h2::before { content: "01 / VISION"; }
#research h2::before { content: "02 / RESEARCH"; }
#activities > div > div:first-child > h2::before { content: "03 / PUBLIC"; }
#governance > h2::before { content: "04 / GOVERNANCE"; }
footer h2::before { content: "05 / JOIN"; }

#vision h2 { font-size: clamp(45px, 4.2vw, 68px) !important; }
#vision h3 { font-size: 24px !important; letter-spacing: -0.025em; }
#vision p { font-size: 17px !important; line-height: 1.48 !important; }

#vision blockquote {
  margin: 48px 0 !important;
  border-top: 1px solid var(--ink) !important;
  border-right: 0 !important;
  border-bottom: 1px solid var(--ink) !important;
  border-left: 0 !important;
  padding: 28px 0 !important;
  font-family: var(--sans) !important;
  font-size: clamp(22px, 1.8vw, 29px) !important;
  font-style: normal !important;
  font-weight: 500;
  letter-spacing: -0.025em;
  line-height: 1.35 !important;
}

#vision .grid.sm\:grid-cols-2 > div {
  border-top: 1px solid var(--ink);
  border-radius: 0 !important;
  background: var(--paper) !important;
  padding: 30px 0 !important;
}

#research {
  padding-top: clamp(100px, 11vw, 170px) !important;
  padding-bottom: clamp(100px, 11vw, 170px) !important;
  border-top: 1px solid var(--ink);
  background: var(--paper) !important;
  color: var(--ink) !important;
}

#research > div > div:first-child { margin-bottom: 100px !important; }
#research h2 { margin-bottom: 28px !important; font-size: clamp(56px, 5.2vw, 82px) !important; }
#research > div > div:first-child p { color: var(--muted) !important; font-size: 19px !important; line-height: 1.35; }

#research > div > .grid { gap: 0 38px !important; }
#research > div > .grid { counter-reset: research-index; }

#research > div > .grid > div {
  position: relative;
  min-height: 360px;
  counter-increment: research-index;
  border: 0 !important;
  border-top: 1px solid var(--ink) !important;
  border-radius: 0 !important;
  background: transparent !important;
  padding: 32px 0 60px !important;
  color: var(--ink) !important;
}

#research > div > .grid > div::before {
  position: absolute;
  top: 35px;
  right: 0;
  padding-left: 10px;
  background: var(--paper);
  color: var(--muted);
  content: "0" counter(research-index);
  font-family: var(--sans);
  font-size: 11px;
  font-variant-numeric: tabular-nums;
  letter-spacing: .12em;
  line-height: 1;
  z-index: 2;
}

#research > div > .grid > div::after {
  --node-x: 50%;
  position: absolute;
  top: 37px;
  right: 34px;
  left: 28px;
  height: 7px;
  background:
    radial-gradient(circle at var(--node-x) 50%, var(--signal) 0 2px, transparent 2.5px),
    repeating-linear-gradient(90deg, #b8b8b2 0 4px, transparent 4px 8px) center / 100% 1px no-repeat;
  content: "";
  z-index: 0;
}

#research > div > .grid > div:nth-child(1)::after { --node-x: 18%; }
#research > div > .grid > div:nth-child(2)::after { --node-x: 72%; }
#research > div > .grid > div:nth-child(3)::after { --node-x: 42%; }
#research > div > .grid > div:nth-child(4)::after { --node-x: 83%; }
#research > div > .grid > div:nth-child(5)::after { --node-x: 31%; }
#research > div > .grid > div:nth-child(6)::after { --node-x: 61%; }
#research > div > .grid > div:nth-child(7)::after { --node-x: 24%; }
#research > div > .grid > div:nth-child(8)::after { --node-x: 77%; }
#research > div > .grid > div:nth-child(9)::after { --node-x: 54%; }

#research > div > .grid > div > svg {
  position: relative;
  z-index: 1;
  width: 22px !important;
  height: 22px !important;
  margin-bottom: 48px !important;
  padding: 0;
  background: var(--paper);
  color: var(--ink) !important;
  overflow: visible;
  stroke-width: 1.5;
  shape-rendering: geometricPrecision;
  vector-effect: non-scaling-stroke;
  transition: color 180ms ease, transform 180ms ease;
}
#research > div > .grid > div:hover > svg { color: var(--signal) !important; transform: translateX(2px); }
#research h3 { font-size: 24px !important; letter-spacing: -0.03em; }
#research p, #research .text-zinc-300, #research .text-zinc-400, #research .text-zinc-500 { color: var(--muted) !important; }
#research .text-sm { font-size: 15px !important; line-height: 1.55 !important; }

#activities {
  display: block !important;
  padding-top: clamp(100px, 11vw, 170px) !important;
  padding-bottom: clamp(100px, 11vw, 170px) !important;
  border-top: 1px solid var(--ink);
  background: var(--paper) !important;
}

#activities h2 { font-size: clamp(43px, 4vw, 64px) !important; }
#activities .rounded-full { border: 1px solid var(--ink); border-radius: 0 !important; box-shadow: none !important; }
#activities .rounded-3xl {
  border: 1px solid var(--ink) !important;
  border-radius: 0 !important;
  box-shadow: none !important;
  background: transparent !important;
}

#activities > div {
  display: block !important;
}

#activities > div > div:first-child {
  min-height: 75svh;
  padding-bottom: var(--section-space);
}

#activities > div > div:first-child > .space-y-8,
#governance > .rounded-3xl { max-width: 980px; }

#governance {
  min-height: 75svh;
  margin-top: 0;
  border-top: 1px solid var(--ink);
  padding-top: var(--section-space);
}

#activities .space-y-8,
#governance .space-y-6 { counter-reset: detail-index; }

#activities .space-y-8 > .flex,
#governance .space-y-6 > div {
  position: relative;
  display: grid !important;
  grid-template-columns: 42px minmax(0, 1fr);
  gap: 18px !important;
  margin-top: 0 !important;
  padding: 22px 0 34px !important;
  border-top: 1px solid var(--ink) !important;
  counter-increment: detail-index;
}

#activities .space-y-8 > .flex::before,
#governance .space-y-6 > div::before {
  color: var(--muted);
  content: "0" counter(detail-index);
  font-family: var(--sans);
  font-size: 11px;
  font-variant-numeric: tabular-nums;
  letter-spacing: .12em;
}

#activities .space-y-8 > .flex > div:first-child,
#governance .space-y-6 > div h4 svg { display: none !important; }

#activities h4,
#governance h4 { margin-top: -5px !important; font-size: 17px !important; }

#activities .space-y-8 > .flex p,
#governance .space-y-6 > div p { font-size: 15px !important; line-height: 1.55 !important; }

#governance > .rounded-3xl { padding: 0 !important; border: 0 !important; }
#governance > .rounded-3xl > p { max-width: 470px; margin-bottom: 46px !important; font-size: 15px !important; line-height: 1.55 !important; }
#governance .space-y-6 > div::before { grid-row: 1 / span 2; }
#governance .space-y-6 > div h4,
#governance .space-y-6 > div p { grid-column: 2; }

#vision .grid.sm\:grid-cols-2 { counter-reset: vision-index; }
#vision .grid.sm\:grid-cols-2 > div { position: relative; counter-increment: vision-index; }
#vision .grid.sm\:grid-cols-2 > div h3 { display: block !important; }
#vision .grid.sm\:grid-cols-2 > div h3::before {
  display: block;
  margin-bottom: 22px;
  color: var(--muted);
  content: "0" counter(vision-index);
  font-family: var(--sans);
  font-size: 11px;
  font-weight: 400;
  letter-spacing: .12em;
}
#vision .grid.sm\:grid-cols-2 > div h3 svg { display: none !important; }

footer {
  position: relative;
  overflow: hidden;
  padding-top: clamp(100px, 11vw, 170px) !important;
  padding-bottom: 50px !important;
  background: var(--ink) !important;
}

footer > .pointer-field + div { position: relative; z-index: 1; max-width: 980px !important; }
footer > div:last-child { position: relative; z-index: 1; }
footer h2 { font-size: clamp(58px, 6vw, 96px) !important; }
footer p { font-size: 18px !important; line-height: 1.45 !important; }
footer a { border-radius: 0 !important; font-family: var(--sans); font-weight: 600 !important; }

.pointer-field--footer {
  inset: 0;
  width: 100%;
  height: 100%;
  max-width: none !important;
  color: #fff;
  opacity: 1;
}

html[lang="zh-CN"] #vision h2,
html[lang="zh-CN"] #research h2,
html[lang="zh-CN"] #activities h2,
html[lang="zh-CN"] footer h2 {
  font-family: var(--serif) !important;
  font-weight: 400 !important;
  letter-spacing: -0.045em !important;
  line-height: 1.04 !important;
}

html[lang="zh-CN"] #vision h2 { font-size: clamp(38px, 3.5vw, 54px) !important; }
html[lang="zh-CN"] #research h2 { font-size: clamp(44px, 4.2vw, 64px) !important; }
html[lang="zh-CN"] #activities h2 { font-size: clamp(36px, 3.4vw, 52px) !important; }
html[lang="zh-CN"] footer h2 { font-size: clamp(46px, 4.8vw, 72px) !important; }

@media (min-width: 1024px) {
  #research > div > .grid { grid-template-columns: repeat(3, minmax(0, 1fr)) !important; }
}

@media (min-width: 768px) and (max-width: 1023px) {
  #research > div > .grid { grid-template-columns: repeat(2, minmax(0, 1fr)) !important; }
}

@media (max-width: 1180px) {
  .site-nav__links { display: none !important; }
}

@media (max-width: 900px) {
  .site-nav { padding-top: 20px; padding-bottom: 20px; }
  .site-nav__inner { min-height: 60px; }
  .brand { gap: 12px; }
  .brand-mark { width: 58px; height: 58px; }
  .brand-name { max-width: 80px; font-size: 20px; }
  .site-nav__links { display: none !important; }
  .locale-link {
    position: absolute;
    top: 28px;
    right: 24px;
    display: inline-flex !important;
    margin-left: auto;
  }
  .hero {
    min-height: 92svh !important;
    padding-top: 160px !important;
    padding-right: 24px !important;
    padding-left: 24px !important;
  }
  .pointer-field--hero {
    inset: 0;
    width: 100%;
    height: 100%;
  }
  .pointer-field--hero .pointer-field__lines { opacity: .16; }
  .pointer-field--hero::after { display: none; }
  .hero__content { width: calc(100vw - 48px) !important; max-width: calc(100vw - 48px) !important; }
  .hero__content, .hero h1, .hero p { min-width: 0 !important; }
  .mobile-break { display: block; }
  .hero p { width: 100% !important; max-width: none !important; }
  .hero h1 { font-size: clamp(55px, 15.5vw, 82px) !important; }
  html[lang="zh-CN"] .hero h1 {
    font-size: clamp(38px, 9.8vw, 50px) !important;
    letter-spacing: -0.05em !important;
    line-height: 1.08 !important;
    word-break: break-all;
  }
  html[lang="zh-CN"] .hero p { word-break: break-all; }
  #vision > div { gap: 60px !important; }
  #vision h2 { position: static !important; }
  #activities > div > div:first-child { min-height: auto; }
  #governance { min-height: auto; }
  .pointer-field--footer { inset: 0; width: 100%; height: 100%; opacity: 1; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .animate-fade-in-up { animation: none !important; }
}