:root {
  --ink: #0b1420;
  --ink-soft: #4f5c6a;
  --navy: #07111f;
  --navy-2: #0b1b2c;
  --paper: #f4f2ed;
  --white: #ffffff;
  --gold: #c7a96b;
  --gold-light: #e4ce98;
  --line: rgba(11, 20, 32, 0.14);
  --container: min(1240px, calc(100vw - 96px));
  --display: "Songti SC", "STSong", "Noto Serif SC", "Source Han Serif SC", Georgia, serif;
  --sans: Inter, "Helvetica Neue", "PingFang SC", "Microsoft YaHei", Arial, sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 108px;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

body.menu-open {
  overflow: hidden;
}

a {
  color: inherit;
  text-decoration: none;
}

button,
a {
  -webkit-tap-highlight-color: transparent;
}

button {
  color: inherit;
  font: inherit;
}

.container {
  width: var(--container);
  margin-inline: auto;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.skip-link {
  position: fixed;
  z-index: 200;
  top: 12px;
  left: 12px;
  padding: 10px 16px;
  transform: translateY(-160%);
  color: var(--navy);
  background: var(--gold-light);
  border-radius: 4px;
  font-weight: 700;
  transition: transform 180ms ease;
}

.skip-link:focus {
  transform: translateY(0);
}

:focus-visible {
  outline: 2px solid var(--gold-light);
  outline-offset: 4px;
}

.site-header {
  position: fixed;
  z-index: 100;
  top: 0;
  right: 0;
  left: 0;
  color: var(--white);
  background: var(--navy);
  transition: background 300ms ease, box-shadow 300ms ease;
}

.site-header.is-scrolled,
.site-header:has(.mobile-menu:not([hidden])) {
  background: rgba(7, 17, 31, 0.94);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.16);
  backdrop-filter: blur(18px);
}

.utility-bar {
  border-bottom: 1px solid rgba(255, 255, 255, 0.14);
  font-size: 11px;
  letter-spacing: 0.16em;
}

.utility-inner {
  display: flex;
  min-height: 34px;
  align-items: center;
  justify-content: space-between;
  opacity: 0.78;
}

.utility-status {
  display: flex;
  align-items: center;
  gap: 10px;
  letter-spacing: 0.08em;
}

.utility-status i {
  display: block;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--gold-light);
  box-shadow: 0 0 0 4px rgba(228, 206, 152, 0.12);
}

.nav-shell {
  display: flex;
  min-height: 86px;
  align-items: center;
  gap: 34px;
}

.brand {
  display: inline-flex;
  flex: 0 0 auto;
  align-items: center;
  gap: 14px;
}

.brand-mark {
  width: 50px;
  height: 50px;
  object-fit: cover;
  border-radius: 4px;
  flex-shrink: 0;
}

.brand-copy {
  display: flex;
  flex-direction: column;
  line-height: 1.25;
}

.brand-copy strong {
  font-family: var(--display);
  font-size: 19px;
  font-weight: 600;
  letter-spacing: 0.1em;
}

.brand-copy small {
  margin-top: 5px;
  font-size: 8px;
  font-weight: 600;
  letter-spacing: 0.13em;
}

.desktop-nav {
  display: flex;
  margin-left: auto;
  align-items: center;
  gap: 30px;
}

.desktop-nav a {
  position: relative;
  padding-block: 8px;
  color: rgba(255, 255, 255, 0.82);
  font-size: 14px;
  letter-spacing: 0.04em;
  transition: color 180ms ease;
}

.desktop-nav a::after {
  position: absolute;
  right: 50%;
  bottom: 0;
  left: 50%;
  height: 1px;
  content: "";
  background: var(--gold-light);
  transition: right 180ms ease, left 180ms ease;
}

.desktop-nav a:hover {
  color: var(--white);
}

.desktop-nav a:hover::after {
  right: 0;
  left: 0;
}

.nav-cta {
  display: inline-flex;
  min-height: 42px;
  padding: 0 19px;
  align-items: center;
  gap: 15px;
  border: 1px solid rgba(228, 206, 152, 0.66);
  font-size: 14px;
  transition: color 180ms ease, background 180ms ease;
}

.nav-cta:hover {
  color: var(--navy);
  background: var(--gold-light);
}

.menu-toggle,
.mobile-menu {
  display: none;
}

.hero {
  position: relative;
  min-height: 850px;
  height: 100svh;
  max-height: 1050px;
  overflow: hidden;
  color: var(--white);
  background: var(--navy);
}

.hero-media,
.hero-vignette,
.hero-grid {
  position: absolute;
  inset: 0;
}

.hero-media {
  background-color: var(--navy);
  background-image: url("assets/xyaa-hero.png");
  background-position: center;
  background-size: cover;
  transform: scale(1.01);
}

.hero-vignette {
  background:
    linear-gradient(90deg, rgba(4, 12, 23, 0.96) 0%, rgba(4, 12, 23, 0.83) 32%, rgba(4, 12, 23, 0.28) 67%, rgba(4, 12, 23, 0.4) 100%),
    linear-gradient(0deg, rgba(4, 12, 23, 0.88) 0%, transparent 38%, rgba(4, 12, 23, 0.42) 100%);
}

.hero-grid {
  opacity: 0.11;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.13) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.13) 1px, transparent 1px);
  background-position: center;
  background-size: 110px 110px;
  mask-image: linear-gradient(90deg, black, transparent 66%);
}

.hero-inner {
  position: relative;
  display: grid;
  height: 100%;
  padding-top: 148px;
  padding-bottom: 76px;
  grid-template-columns: minmax(0, 1fr) 360px;
  align-items: center;
  gap: 70px;
}

.hero-copy {
  max-width: 750px;
  padding-top: 28px;
}

.eyebrow,
.kicker {
  display: flex;
  align-items: center;
  gap: 14px;
  margin: 0 0 26px;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.19em;
}

.eyebrow {
  color: var(--gold-light);
}

.eyebrow > span {
  width: 44px;
  height: 1px;
  background: currentColor;
}

.hero h1 {
  margin: 0;
  font-family: var(--display);
  font-size: clamp(58px, 6vw, 92px);
  font-weight: 500;
  letter-spacing: -0.055em;
  line-height: 1.06;
}

.hero h1 em {
  color: var(--gold-light);
  font-style: normal;
}

.hero-lead {
  margin: 31px 0 0;
  color: rgba(255, 255, 255, 0.78);
  font-family: var(--display);
  font-size: 20px;
  letter-spacing: 0.18em;
}

.hero-actions {
  display: flex;
  margin-top: 44px;
  align-items: center;
  gap: 14px;
}

.button {
  display: inline-flex;
  min-width: 154px;
  min-height: 54px;
  padding: 0 22px;
  align-items: center;
  justify-content: space-between;
  gap: 22px;
  border: 1px solid transparent;
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.04em;
  transition: transform 180ms ease, background 180ms ease, color 180ms ease, border 180ms ease;
}

.button:hover {
  transform: translateY(-2px);
}

.button-primary {
  color: var(--navy);
  background: var(--gold-light);
}

.button-primary:hover {
  background: var(--white);
}

.button-ghost {
  justify-content: center;
  color: rgba(255, 255, 255, 0.88);
  border-color: rgba(255, 255, 255, 0.28);
}

.button-ghost:hover {
  border-color: rgba(255, 255, 255, 0.72);
  background: rgba(255, 255, 255, 0.08);
}

.hero-note {
  position: relative;
  align-self: end;
  margin-bottom: 54px;
  padding: 24px 26px;
  border-top: 1px solid rgba(255, 255, 255, 0.24);
  border-bottom: 1px solid rgba(255, 255, 255, 0.24);
  background: rgba(7, 17, 31, 0.28);
  backdrop-filter: blur(12px);
}

.note-index {
  color: var(--gold-light);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.14em;
}

.hero-note p {
  margin: 12px 0 5px;
  font-family: var(--display);
  font-size: 21px;
  letter-spacing: 0.08em;
}

.hero-note small {
  display: block;
  color: rgba(255, 255, 255, 0.62);
  font-size: 13px;
  line-height: 1.8;
}

.scroll-cue {
  position: absolute;
  right: max(34px, calc((100vw - 1240px) / 2));
  bottom: 34px;
  display: flex;
  align-items: center;
  gap: 18px;
  color: rgba(255, 255, 255, 0.46);
  font-size: 9px;
  font-weight: 700;
  letter-spacing: 0.18em;
  writing-mode: vertical-rl;
}

.scroll-cue i {
  position: relative;
  width: 1px;
  height: 48px;
  overflow: hidden;
  background: rgba(255, 255, 255, 0.26);
}

.scroll-cue i::after {
  position: absolute;
  top: -40%;
  left: 0;
  width: 1px;
  height: 40%;
  content: "";
  background: var(--gold-light);
  animation: scroll-line 2.2s ease-in-out infinite;
}

@keyframes scroll-line {
  0% { transform: translateY(0); }
  70%, 100% { transform: translateY(350%); }
}

.intro-band {
  color: var(--white);
  background: var(--navy);
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.intro-band-inner {
  display: flex;
  min-height: 88px;
  align-items: center;
  justify-content: space-between;
  gap: 34px;
}

.intro-band p {
  margin: 0;
  font-family: var(--display);
  font-size: 15px;
  letter-spacing: 0.14em;
  white-space: nowrap;
}

.intro-tags {
  display: flex;
  flex: 1;
  align-items: center;
  justify-content: flex-end;
  gap: clamp(18px, 3vw, 46px);
}

.intro-tags span {
  color: rgba(255, 255, 255, 0.42);
  font-size: 9px;
  font-weight: 700;
  letter-spacing: 0.12em;
  white-space: nowrap;
}

.section {
  padding-block: clamp(100px, 10vw, 160px);
}

.section-heading {
  display: grid;
  padding-bottom: clamp(58px, 6vw, 88px);
  border-bottom: 1px solid var(--line);
  grid-template-columns: minmax(0, 1fr) minmax(320px, 450px);
  align-items: end;
  gap: 80px;
}

.kicker {
  color: #788492;
}

.kicker > span {
  color: var(--gold);
  font-size: 10px;
}

.section h2,
.join h2,
.contact h2 {
  margin: 0;
  font-family: var(--display);
  font-size: clamp(43px, 4.8vw, 68px);
  font-weight: 500;
  letter-spacing: -0.045em;
  line-height: 1.18;
}

.section-intro {
  margin: 0 0 3px;
  color: var(--ink-soft);
  font-size: 17px;
  line-height: 2;
}

.about-layout {
  display: grid;
  padding-top: clamp(58px, 6vw, 86px);
  grid-template-columns: minmax(0, 0.86fr) minmax(520px, 1.3fr);
  gap: clamp(58px, 8vw, 120px);
}

.mission-panel {
  position: relative;
  min-height: 520px;
  padding: 40px;
  overflow: hidden;
  color: var(--white);
  background:
    radial-gradient(circle at 90% 10%, rgba(199, 169, 107, 0.24), transparent 34%),
    var(--navy-2);
}

.mission-panel::before,
.mission-panel::after {
  position: absolute;
  content: "";
  border: 1px solid rgba(199, 169, 107, 0.16);
  border-radius: 50%;
}

.mission-panel::before {
  right: -120px;
  bottom: -130px;
  width: 360px;
  height: 360px;
}

.mission-panel::after {
  right: -30px;
  bottom: -40px;
  width: 180px;
  height: 180px;
}

.panel-label {
  color: var(--gold-light);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.16em;
}

.mission-panel blockquote {
  position: relative;
  z-index: 1;
  margin: 92px 0 28px;
  font-family: var(--display);
  font-size: clamp(29px, 3vw, 40px);
  line-height: 1.55;
}

.mission-panel > p {
  position: relative;
  z-index: 1;
  max-width: 440px;
  margin: 0;
  color: rgba(255, 255, 255, 0.62);
  font-size: 14px;
}

.text-link {
  display: inline-flex;
  position: relative;
  margin-top: 34px;
  padding-bottom: 6px;
  align-items: center;
  gap: 26px;
  border-bottom: 1px solid currentColor;
  font-size: 14px;
  font-weight: 600;
}

.mission-panel .text-link {
  position: absolute;
  z-index: 1;
  right: 40px;
  bottom: 38px;
  left: 40px;
  justify-content: space-between;
  color: var(--gold-light);
}

.value-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
}

.value-card {
  min-height: 250px;
  padding: 12px 34px 32px;
  border-bottom: 1px solid var(--line);
}

.value-card:nth-child(odd) {
  padding-left: 0;
  border-right: 1px solid var(--line);
}

.value-card:nth-child(n + 3) {
  padding-top: 44px;
  border-bottom: 0;
}

.value-card > span {
  display: block;
  color: var(--gold);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.12em;
}

.value-card h3 {
  margin: 48px 0 13px;
  font-family: var(--display);
  font-size: 27px;
  font-weight: 600;
}

.value-card p {
  margin: 0;
  color: var(--ink-soft);
  font-size: 14px;
}

.services {
  color: var(--white);
  background: var(--navy);
}

.section-heading-light {
  border-color: rgba(255, 255, 255, 0.16);
}

.section-heading-light .section-intro,
.services .section-intro {
  color: rgba(255, 255, 255, 0.57);
}

.service-list {
  padding-top: 24px;
}

.service-row {
  display: grid;
  min-height: 155px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.14);
  grid-template-columns: 80px minmax(260px, 1fr) minmax(320px, 0.8fr) 50px;
  align-items: center;
  gap: 30px;
  transition: background 220ms ease, padding 220ms ease;
}

.service-row:hover {
  padding-inline: 22px;
  background: rgba(255, 255, 255, 0.045);
}

.service-number {
  color: var(--gold-light);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.14em;
}

.service-title small {
  color: rgba(255, 255, 255, 0.34);
  font-size: 9px;
  font-weight: 700;
  letter-spacing: 0.17em;
}

.service-title h3 {
  margin: 9px 0 0;
  font-family: var(--display);
  font-size: 28px;
  font-weight: 500;
}

.service-row > p {
  margin: 0;
  color: rgba(255, 255, 255, 0.53);
  font-size: 14px;
}

.service-arrow {
  display: grid;
  width: 42px;
  height: 42px;
  place-items: center;
  border: 1px solid rgba(255, 255, 255, 0.22);
  border-radius: 50%;
  color: var(--gold-light);
  transition: color 180ms ease, background 180ms ease, transform 180ms ease;
}

.service-row:hover .service-arrow {
  color: var(--navy);
  background: var(--gold-light);
  transform: rotate(45deg);
}

.ecosystem {
  overflow: hidden;
}

.ecosystem-stage {
  position: relative;
  height: 720px;
  margin-top: 86px;
  overflow: hidden;
  background:
    radial-gradient(circle at 50% 50%, rgba(199, 169, 107, 0.13), transparent 24%),
    linear-gradient(rgba(7, 17, 31, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(7, 17, 31, 0.035) 1px, transparent 1px);
  background-size: auto, 70px 70px, 70px 70px;
  border: 1px solid var(--line);
}

.orbit {
  position: absolute;
  top: 50%;
  left: 50%;
  border: 1px solid rgba(11, 20, 32, 0.14);
  border-radius: 50%;
  transform: translate(-50%, -50%);
}

.orbit::before,
.orbit::after {
  position: absolute;
  width: 7px;
  height: 7px;
  content: "";
  background: var(--gold);
  border-radius: 50%;
}

.orbit-one {
  width: 460px;
  height: 460px;
}

.orbit-one::before {
  top: 48px;
  left: 78px;
}

.orbit-one::after {
  right: 28px;
  bottom: 118px;
}

.orbit-two {
  width: 620px;
  height: 620px;
  border-style: dashed;
}

.orbit-two::before {
  top: 198px;
  right: 1px;
}

.orbit-two::after {
  bottom: 70px;
  left: 118px;
}

.eco-center {
  position: absolute;
  top: 50%;
  left: 50%;
  display: flex;
  width: 260px;
  height: 260px;
  padding: 38px;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  color: var(--white);
  background: var(--navy);
  border-radius: 50%;
  box-shadow: 0 34px 80px rgba(7, 17, 31, 0.2);
  transform: translate(-50%, -50%);
  text-align: center;
}

.eco-center::before {
  position: absolute;
  inset: 14px;
  content: "";
  border: 1px solid rgba(199, 169, 107, 0.36);
  border-radius: 50%;
}

.eco-center span {
  position: relative;
  z-index: 1;
  color: var(--gold-light);
  font-size: 10px;
  font-weight: 800;
  letter-spacing: 0.28em;
}

.eco-center strong {
  position: relative;
  z-index: 1;
  margin-top: 15px;
  font-family: var(--display);
  font-size: 31px;
  font-weight: 500;
  line-height: 1.45;
}

.eco-node {
  position: absolute;
  display: flex;
  min-width: 150px;
  padding: 18px 22px;
  flex-direction: column;
  gap: 2px;
  background: rgba(244, 242, 237, 0.86);
  border-left: 2px solid var(--gold);
  box-shadow: 0 14px 38px rgba(7, 17, 31, 0.08);
  backdrop-filter: blur(10px);
}

.eco-node b {
  font-family: var(--display);
  font-size: 19px;
  font-weight: 600;
}

.eco-node small {
  color: #85909b;
  font-size: 8px;
  font-weight: 700;
  letter-spacing: 0.13em;
}

.node-1 { top: 16%; left: 12%; }
.node-2 { top: 15%; right: 14%; }
.node-3 { top: 45%; left: 7%; }
.node-4 { top: 46%; right: 7%; }
.node-5 { bottom: 13%; left: 17%; }
.node-6 { right: 19%; bottom: 12%; }

.insights {
  color: var(--white);
  background: #0b1726;
}

.insights-top {
  display: flex;
  margin-bottom: 70px;
  align-items: end;
  justify-content: space-between;
  gap: 40px;
}

.insights-top .text-link {
  margin: 0 0 10px;
  color: var(--gold-light);
}

.insight-grid {
  display: grid;
  grid-template-columns: 1.12fr 0.94fr 0.94fr;
  gap: 20px;
}

.insight-card {
  overflow: hidden;
  background: rgba(255, 255, 255, 0.045);
  border: 1px solid rgba(255, 255, 255, 0.12);
  transition: border 180ms ease, transform 180ms ease;
}

.insight-card:hover {
  border-color: rgba(228, 206, 152, 0.48);
  transform: translateY(-4px);
}

.insight-visual {
  position: relative;
  display: flex;
  height: 280px;
  padding: 24px;
  align-items: flex-end;
  overflow: hidden;
}

.insight-featured .insight-visual {
  height: 340px;
}

.insight-visual::before,
.insight-visual::after {
  position: absolute;
  content: "";
}

.insight-visual::before {
  inset: -20%;
  border: 1px solid rgba(255, 255, 255, 0.18);
  transform: rotate(18deg);
}

.insight-visual::after {
  right: -13%;
  bottom: -33%;
  width: 78%;
  aspect-ratio: 1;
  border: 1px solid rgba(255, 255, 255, 0.19);
  border-radius: 50%;
}

.visual-one { background: linear-gradient(145deg, #243b50, #101d2a 52%, #987a43); }
.visual-two { background: linear-gradient(145deg, #82714e, #25303b 62%, #101927); }
.visual-three { background: linear-gradient(145deg, #0b3452, #07111f 62%, #39455a); }

.insight-visual span {
  position: relative;
  z-index: 1;
  color: rgba(255, 255, 255, 0.78);
  font-size: clamp(28px, 3.1vw, 43px);
  font-weight: 300;
  letter-spacing: -0.04em;
  line-height: 0.95;
}

.insight-body {
  padding: 26px 28px 30px;
}

.insight-body > p {
  margin: 0;
  color: rgba(255, 255, 255, 0.34);
  font-size: 9px;
  font-weight: 700;
  letter-spacing: 0.12em;
}

.insight-body > p span {
  color: var(--gold-light);
}

.insight-body h3 {
  min-height: 102px;
  margin: 18px 0 24px;
  font-family: var(--display);
  font-size: 22px;
  font-weight: 500;
  line-height: 1.55;
}

.insight-featured .insight-body h3 {
  font-size: 25px;
}

.insight-body a {
  display: flex;
  padding-top: 18px;
  align-items: center;
  justify-content: space-between;
  border-top: 1px solid rgba(255, 255, 255, 0.13);
  color: rgba(255, 255, 255, 0.63);
  font-size: 13px;
}

.join {
  position: relative;
  overflow: hidden;
  color: var(--navy);
  background: var(--gold-light);
}

.join-pattern {
  position: absolute;
  inset: 0;
  opacity: 0.18;
  background-image:
    linear-gradient(rgba(7, 17, 31, 0.24) 1px, transparent 1px),
    linear-gradient(90deg, rgba(7, 17, 31, 0.24) 1px, transparent 1px);
  background-size: 88px 88px;
  mask-image: linear-gradient(90deg, transparent, black);
}

.join-inner {
  position: relative;
  display: grid;
  padding-block: clamp(90px, 9vw, 140px);
  grid-template-columns: 1.15fr 0.85fr;
  gap: clamp(70px, 11vw, 150px);
}

.kicker-dark {
  color: rgba(7, 17, 31, 0.58);
}

.kicker-dark > span {
  color: var(--navy);
}

.join-side {
  padding-top: 42px;
}

.join-side > p {
  margin: 0 0 32px;
  font-size: 17px;
}

.join-side ul {
  margin: 0;
  padding: 0;
  list-style: none;
}

.join-side li {
  display: flex;
  padding: 17px 0;
  align-items: center;
  gap: 22px;
  border-top: 1px solid rgba(7, 17, 31, 0.23);
  font-size: 14px;
  font-weight: 600;
}

.join-side li:last-child {
  border-bottom: 1px solid rgba(7, 17, 31, 0.23);
}

.join-side li span {
  font-size: 10px;
  font-weight: 800;
}

.button-dark {
  margin-top: 34px;
  color: var(--white);
  background: var(--navy);
}

.button-dark:hover {
  background: #14283d;
}

.contact {
  background: #eef0ef;
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr minmax(420px, 0.8fr);
  gap: clamp(70px, 10vw, 140px);
}

.contact-copy > p:last-child {
  max-width: 520px;
  margin: 34px 0 0;
  color: var(--ink-soft);
  font-size: 17px;
}

.contact-panel {
  padding: 38px 42px;
  color: var(--white);
  background: var(--navy);
}

.contact-item {
  padding: 24px 0 28px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.14);
}

.contact-item:first-child {
  padding-top: 0;
}

.contact-item small {
  display: block;
  margin-bottom: 13px;
  color: var(--gold-light);
  font-size: 9px;
  font-weight: 700;
  letter-spacing: 0.14em;
}

.contact-item strong,
.contact-item span {
  display: block;
}

.contact-item strong {
  font-family: var(--display);
  font-size: 22px;
  font-weight: 500;
}

.contact-item span {
  margin-top: 3px;
  color: rgba(255, 255, 255, 0.42);
  font-size: 13px;
}

.qr-placeholder {
  display: flex;
  padding-top: 30px;
  align-items: center;
  gap: 20px;
}

.qr-placeholder > div {
  display: grid;
  width: 74px;
  height: 74px;
  place-items: center;
  border: 1px solid rgba(228, 206, 152, 0.52);
  background:
    linear-gradient(90deg, transparent 47%, rgba(228, 206, 152, 0.22) 48%, rgba(228, 206, 152, 0.22) 52%, transparent 53%),
    linear-gradient(transparent 47%, rgba(228, 206, 152, 0.22) 48%, rgba(228, 206, 152, 0.22) 52%, transparent 53%);
}

.qr-placeholder > div span {
  color: var(--gold-light);
  font-size: 25px;
  font-weight: 200;
}

.qr-placeholder p {
  display: flex;
  margin: 0;
  flex-direction: column;
}

.qr-placeholder b {
  font-family: var(--display);
  font-size: 19px;
  font-weight: 500;
}

.qr-placeholder small {
  color: rgba(255, 255, 255, 0.43);
  font-size: 12px;
}

.site-footer {
  color: var(--white);
  background: #040b13;
}

.footer-main {
  display: grid;
  min-height: 240px;
  padding-block: 60px;
  grid-template-columns: 1.4fr 0.8fr 0.8fr;
  align-items: start;
  gap: 60px;
}

.brand-footer .brand-mark {
  opacity: 0.92;
}

.footer-main > p {
  margin: 3px 0 0;
  color: rgba(255, 255, 255, 0.53);
  font-family: var(--display);
  font-size: 18px;
  letter-spacing: 0.12em;
  line-height: 1.8;
}

.footer-links {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px 28px;
}

.footer-links a {
  color: rgba(255, 255, 255, 0.55);
  font-size: 13px;
  transition: color 180ms ease;
}

.footer-links a:hover {
  color: var(--gold-light);
}

.footer-bottom {
  display: flex;
  min-height: 68px;
  align-items: center;
  justify-content: space-between;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  color: rgba(255, 255, 255, 0.32);
  font-size: 11px;
  letter-spacing: 0.05em;
}

.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 700ms ease, transform 700ms ease;
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.value-card:nth-child(2),
.service-row:nth-child(2),
.insight-card:nth-child(2) { transition-delay: 80ms; }

.value-card:nth-child(3),
.service-row:nth-child(3),
.insight-card:nth-child(3) { transition-delay: 140ms; }

.value-card:nth-child(4),
.service-row:nth-child(4) { transition-delay: 200ms; }

.service-row:nth-child(5) { transition-delay: 260ms; }

@media (max-width: 1180px) {
  :root { --container: min(100% - 64px, 1120px); }
  .desktop-nav { gap: 20px; }
  .desktop-nav a { font-size: 13px; }
  .hero-inner { grid-template-columns: 1fr 300px; }
  .about-layout { grid-template-columns: 0.9fr 1.1fr; gap: 60px; }
  .service-row { grid-template-columns: 55px minmax(230px, 1fr) minmax(280px, 0.8fr) 46px; }
}

@media (max-width: 980px) {
  :root { --container: calc(100% - 48px); }
  html { scroll-padding-top: 82px; }
  .utility-bar, .desktop-nav, .nav-cta { display: none; }
  .nav-shell { min-height: 78px; justify-content: space-between; }
  .brand-copy strong { font-size: 17px; }
  .menu-toggle {
    display: flex;
    width: 48px;
    height: 48px;
    padding: 0;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 8px;
    border: 1px solid rgba(255, 255, 255, 0.24);
    background: transparent;
    cursor: pointer;
  }
  .menu-toggle i { width: 20px; height: 1px; background: var(--white); transition: transform 180ms ease; }
  .menu-toggle[aria-expanded="true"] i:first-of-type { transform: translateY(4.5px) rotate(45deg); }
  .menu-toggle[aria-expanded="true"] i:last-of-type { transform: translateY(-4.5px) rotate(-45deg); }
  .mobile-menu:not([hidden]) {
    display: flex;
    height: calc(100svh - 78px);
    padding: 34px 24px 40px;
    flex-direction: column;
    color: var(--white);
    background: var(--navy);
    border-top: 1px solid rgba(255, 255, 255, 0.13);
  }
  .mobile-menu > a:not(.mobile-join) {
    display: flex;
    padding: 19px 3px;
    align-items: center;
    gap: 22px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.12);
    font-family: var(--display);
    font-size: 22px;
  }
  .mobile-menu > a span { color: var(--gold-light); font-family: var(--sans); font-size: 10px; }
  .mobile-join {
    display: flex;
    min-height: 58px;
    margin-top: auto;
    padding: 0 20px;
    align-items: center;
    justify-content: space-between;
    color: var(--navy);
    background: var(--gold-light);
    font-weight: 700;
  }
  .hero { min-height: 760px; height: 100svh; max-height: 940px; }
  .hero-inner { padding-top: 95px; padding-bottom: 80px; grid-template-columns: 1fr; }
  .hero-copy { align-self: center; }
  .hero-note { display: none; }
  .hero h1 { font-size: clamp(55px, 9vw, 76px); }
  .hero-media { background-position: 60% center; }
  .hero-vignette { background: linear-gradient(90deg, rgba(4, 12, 23, 0.94), rgba(4, 12, 23, 0.48) 70%, rgba(4, 12, 23, 0.6)), linear-gradient(0deg, rgba(4, 12, 23, 0.87), transparent 60%); }
  .scroll-cue { display: none; }
  .intro-band-inner { min-height: 76px; }
  .intro-tags span:nth-last-child(-n + 2) { display: none; }
  .section-heading { grid-template-columns: 1fr; gap: 30px; }
  .section-intro { max-width: 650px; }
  .about-layout { grid-template-columns: 1fr; }
  .mission-panel { min-height: 490px; }
  .service-row { grid-template-columns: 44px minmax(210px, 0.9fr) 1fr 42px; gap: 20px; }
  .ecosystem-stage { height: 650px; }
  .orbit-two { width: 540px; height: 540px; }
  .node-1 { left: 5%; }
  .node-2 { right: 5%; }
  .node-3 { left: 2%; }
  .node-4 { right: 2%; }
  .node-5 { left: 7%; }
  .node-6 { right: 8%; }
  .insight-grid { grid-template-columns: repeat(2, 1fr); }
  .insight-featured { grid-column: 1 / -1; }
  .insight-featured .insight-visual { height: 320px; }
  .join-inner { grid-template-columns: 1fr 0.85fr; gap: 70px; }
  .contact-grid { grid-template-columns: 1fr 0.85fr; gap: 60px; }
  .footer-main { grid-template-columns: 1fr 1fr; }
  .footer-links { grid-column: 1 / -1; }
}

@media (max-width: 760px) {
  :root { --container: calc(100% - 36px); }
  /* 手机端不做滚动淡入：内容永远可见，不依赖 JS（防长文章/旧浏览器/JS 失败导致空白） */
  .reveal { opacity: 1 !important; transform: none !important; }
  .brand-mark { width: 44px; height: 44px; }
  .brand-copy small { font-size: 7px; letter-spacing: 0.09em; }
  .hero { min-height: 700px; }
  .hero-grid { background-size: 74px 74px; }
  .hero-inner { align-items: center; }
  .hero-copy { padding-top: 38px; }
  .eyebrow { margin-bottom: 22px; font-size: 9px; letter-spacing: 0.14em; }
  .eyebrow > span { width: 28px; }
  .hero h1 { font-size: clamp(47px, 12vw, 68px); line-height: 1.1; }
  .hero-lead { margin-top: 25px; font-size: 16px; letter-spacing: 0.12em; }
  .hero-actions { margin-top: 34px; }
  .button { min-height: 52px; min-width: 145px; }
  .intro-band-inner { padding-block: 20px; flex-direction: column; align-items: flex-start; gap: 9px; }
  .intro-band p { font-size: 13px; white-space: normal; }
  .intro-tags { width: 100%; justify-content: flex-start; }
  .section { padding-block: 88px; }
  .section-heading { padding-bottom: 48px; }
  .section h2, .join h2, .contact h2 { font-size: clamp(38px, 10vw, 54px); }
  .section-intro { font-size: 16px; }
  .about-layout { padding-top: 48px; gap: 46px; }
  .mission-panel { min-height: 460px; padding: 30px; }
  .mission-panel blockquote { margin-top: 66px; }
  .mission-panel .text-link { right: 30px; bottom: 28px; left: 30px; }
  .value-grid { grid-template-columns: 1fr; }
  .value-card, .value-card:nth-child(odd), .value-card:nth-child(n + 3) { min-height: 0; padding: 26px 0 32px; border-right: 0; border-bottom: 1px solid var(--line); }
  .value-card h3 { margin-top: 25px; }
  .service-list { padding-top: 5px; }
  .service-row { min-height: 0; padding: 30px 0; grid-template-columns: 38px 1fr 38px; gap: 16px; }
  .service-row:hover { padding-inline: 12px; }
  .service-row > p { grid-column: 2 / 4; padding-right: 25px; }
  .service-arrow { grid-column: 3; grid-row: 1; }
  .service-title h3 { font-size: 24px; }
  .ecosystem-stage { height: auto; margin-top: 54px; padding: 36px 22px; background-size: auto, 52px 52px, 52px 52px; }
  .orbit { display: none; }
  .eco-center { position: relative; top: auto; left: auto; width: 190px; height: 190px; margin: 0 auto 34px; padding: 25px; transform: none; }
  .eco-center strong { font-size: 25px; }
  .eco-node, .node-1, .node-2, .node-3, .node-4, .node-5, .node-6 { position: static; min-width: 0; margin-top: 10px; padding: 15px 18px; }
  .insights-top { margin-bottom: 48px; flex-direction: column; align-items: flex-start; }
  .insights-top .text-link { margin-top: 0; }
  .insight-grid { grid-template-columns: 1fr; }
  .insight-featured { grid-column: auto; }
  .insight-visual, .insight-featured .insight-visual { height: 270px; }
  .insight-body h3 { min-height: 0; }
  .join-inner { grid-template-columns: 1fr; gap: 18px; }
  .join-side { padding-top: 0; }
  .contact-grid { grid-template-columns: 1fr; gap: 48px; }
  .contact-panel { padding: 32px; }
  .footer-main { grid-template-columns: 1fr; gap: 34px; }
  .footer-links { grid-column: auto; }
  .footer-bottom { padding-block: 20px; flex-direction: column; align-items: flex-start; justify-content: center; gap: 2px; }
}

@media (max-width: 520px) {
  .brand { gap: 10px; }
  .brand-copy strong { font-size: 15px; letter-spacing: 0.06em; }
  .brand-copy small { max-width: 178px; white-space: nowrap; }
  .hero-media { background-position: 66% center; }
  .hero-vignette { background: linear-gradient(90deg, rgba(4, 12, 23, 0.96), rgba(4, 12, 23, 0.62)), linear-gradient(0deg, rgba(4, 12, 23, 0.92), transparent 67%); }
  .hero-actions { align-items: stretch; flex-direction: column; }
  .button { width: 100%; }
  .button-ghost { justify-content: center; }
  .intro-tags { gap: 18px; }
  .intro-tags span:nth-child(2) { display: none; }
  .mission-panel { min-height: 485px; }
  .mission-panel blockquote { font-size: 28px; }
  .ecosystem-stage { padding-inline: 16px; }
  .contact-panel { padding: 28px 24px; }
  .footer-links { grid-template-columns: 1fr; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: 0.01ms !important; animation-iteration-count: 1 !important; transition-duration: 0.01ms !important; }
  .reveal { opacity: 1; transform: none; }
}