:root {
  color-scheme: dark;
  --ink: #f8f6f0;
  --ink-soft: #d1dfeb;
  --ink-muted: #8ca3b8;
  --night: #030b18;
  --night-deep: #01040a;
  --panel: rgba(7, 22, 39, 0.74);
  --panel-strong: #091c31;
  --line: rgba(123, 169, 205, 0.17);
  --line-strong: rgba(133, 189, 226, 0.34);
  --aqua: #55d8e8;
  --aqua-soft: #a8eff5;
  --blue: #5b7cff;
  --sun: #ffc95c;
  --sun-bright: #ffe7a3;
  --coral: #ff936b;
  --max-width: 1280px;
  --side: clamp(1.25rem, 5vw, 5rem);
  --display: "Helvetica Neue", "SF Pro Display", "Segoe UI", "PingFang SC", "Hiragino Sans GB", system-ui, sans-serif;
  --body: Inter, "SF Pro Text", "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", system-ui, sans-serif;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 7rem;
}

body {
  margin: 0;
  min-width: 20rem;
  overflow-x: hidden;
  color: var(--ink);
  background:
    radial-gradient(circle at 78% 4%, rgba(25, 91, 148, 0.2), transparent 34rem),
    radial-gradient(circle at 86% 30%, rgba(85, 216, 232, 0.075), transparent 27rem),
    radial-gradient(circle at 8% 58%, rgba(91, 124, 255, 0.055), transparent 30rem),
    var(--night-deep);
  font-family: var(--body);
  font-size: 1rem;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

body::before {
  position: fixed;
  z-index: -1;
  inset: 0;
  background-image:
    radial-gradient(circle at center, rgba(255, 231, 163, 0.2) 0 0.6px, transparent 0.8px),
    linear-gradient(rgba(87, 143, 187, 0.016) 1px, transparent 1px),
    linear-gradient(90deg, rgba(87, 143, 187, 0.016) 1px, transparent 1px);
  background-size: 8rem 8rem, 5rem 5rem, 5rem 5rem;
  content: "";
  pointer-events: none;
}

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

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

button {
  font: inherit;
}

svg {
  display: block;
}

.skip-link {
  position: fixed;
  z-index: 100;
  top: 1rem;
  left: 1rem;
  padding: 0.75rem 1rem;
  border-radius: 0.4rem;
  color: var(--night-deep);
  background: var(--sun);
  font-weight: 750;
  transform: translateY(-180%);
  transition: transform 180ms ease;
}

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

:focus-visible {
  outline: 3px solid var(--sun);
  outline-offset: 4px;
}

.site-header {
  position: fixed;
  z-index: 30;
  top: 0;
  right: 0;
  left: 0;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  min-height: 6.4rem;
  padding: 1.1rem var(--side);
  border-bottom: 1px solid transparent;
  background: linear-gradient(to bottom, rgba(1, 4, 10, 0.97), rgba(1, 4, 10, 0));
  transition: min-height 220ms ease, border-color 220ms ease, background 220ms ease, backdrop-filter 220ms ease;
}

.site-header.is-condensed {
  min-height: 4.8rem;
  border-color: var(--line);
  background: rgba(2, 8, 17, 0.77);
  box-shadow: 0 1rem 3rem rgba(0, 0, 0, 0.18);
  -webkit-backdrop-filter: blur(22px) saturate(145%);
  backdrop-filter: blur(22px) saturate(145%);
}

.brand {
  justify-self: start;
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  width: fit-content;
  min-height: 2.75rem;
}

.brand-mark {
  width: 2.6rem;
  height: 2.6rem;
  overflow: visible;
}

.brand-mark > circle:first-child {
  fill: rgba(255, 201, 92, 0.055);
  stroke: rgba(255, 201, 92, 0.38);
}

.brand-mark path {
  fill: none;
  stroke: var(--aqua-soft);
  stroke-linecap: round;
  stroke-width: 1.6;
}

.brand-mark .brand-node {
  fill: var(--sun-bright);
  stroke: var(--night-deep);
  stroke-width: 1;
}

.brand-wordmark {
  display: flex;
  flex-direction: column;
  line-height: 1.1;
}

.brand-wordmark strong {
  font-family: var(--display);
  font-size: 1.18rem;
  font-weight: 650;
  letter-spacing: -0.01em;
}

.brand-wordmark > span {
  margin-top: 0.28rem;
  color: var(--ink-muted);
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: clamp(1.2rem, 3vw, 2.8rem);
  color: var(--ink-soft);
  font-size: 0.82rem;
  font-weight: 650;
  letter-spacing: 0.04em;
}

.site-nav a,
.language-switcher button {
  position: relative;
  transition: color 180ms ease;
}

.site-nav a {
  padding: 0.75rem 0;
}

.site-nav a::after {
  position: absolute;
  right: 50%;
  bottom: -0.55rem;
  left: 50%;
  height: 1px;
  background: var(--aqua);
  content: "";
  transition: right 180ms ease, left 180ms ease;
}

.site-nav a:hover,
.language-switcher button:hover {
  color: var(--ink);
}

.site-nav a:hover::after,
.site-nav a:focus-visible::after {
  right: 0;
  left: 0;
}

.language-switcher {
  justify-self: end;
  display: flex;
  align-items: center;
  gap: 0.48rem;
  color: var(--ink-muted);
  font-size: 0.73rem;
  font-weight: 750;
  letter-spacing: 0.1em;
}

.language-switcher button {
  min-width: 2.8rem;
  min-height: 2.8rem;
  padding: 0.25rem;
  border: 0;
  color: inherit;
  background: transparent;
  cursor: pointer;
}

.language-switcher button[aria-pressed="true"] {
  color: var(--aqua-soft);
}

.hero {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(23rem, 0.9fr);
  align-items: center;
  gap: clamp(2rem, 6vw, 7rem);
  min-height: 100svh;
  padding: 9.4rem var(--side) 6rem;
  overflow: hidden;
  overflow: clip;
  isolation: isolate;
}

.hero::after {
  position: absolute;
  right: var(--side);
  bottom: 0;
  left: var(--side);
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(85, 216, 232, 0.28), rgba(255, 201, 92, 0.2), transparent);
  content: "";
}

.hero-atmosphere,
.hero-glow {
  position: absolute;
  z-index: -1;
  pointer-events: none;
}

.hero-atmosphere {
  inset: 0;
  overflow: hidden;
}

.hero-glow {
  top: 17%;
  right: 4%;
  width: 43rem;
  height: 43rem;
  border-radius: 50%;
  background:
    radial-gradient(circle at 52% 50%, rgba(255, 201, 92, 0.095), transparent 20%),
    radial-gradient(circle, rgba(25, 119, 159, 0.16), transparent 67%);
  filter: blur(24px);
}

.orbit {
  position: absolute;
  border: 1px solid rgba(91, 124, 255, 0.09);
  border-radius: 50%;
}

.orbit-one {
  top: -32rem;
  left: -25rem;
  width: 70rem;
  height: 70rem;
}

.orbit-two {
  right: -24rem;
  bottom: -32rem;
  width: 56rem;
  height: 56rem;
}

.hero-copy {
  z-index: 2;
  max-width: 48rem;
  padding-top: 1rem;
}

.eyebrow {
  margin: 0 0 1.5rem;
  color: var(--sun);
  font-size: 0.7rem;
  font-weight: 800;
  letter-spacing: 0.22em;
  line-height: 1.4;
}

.eyebrow::before {
  display: inline-block;
  width: 1.8rem;
  height: 1px;
  margin-right: 0.75rem;
  vertical-align: 0.25em;
  background: currentColor;
  content: "";
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1,
h2,
h3 {
  font-family: var(--display);
  text-wrap: balance;
}

h1 {
  max-width: 8.5ch;
  margin-bottom: 1.8rem;
  font-size: clamp(4rem, 7.5vw, 7.8rem);
  font-weight: 590;
  letter-spacing: -0.072em;
  line-height: 0.9;
}

h1 > span {
  display: block;
}

h1 .accent {
  color: transparent;
  background: linear-gradient(104deg, var(--sun-bright), var(--sun) 58%, var(--coral));
  background-clip: text;
  -webkit-background-clip: text;
}

html[data-language="zh"] h1 {
  max-width: 7.5em;
  font-size: clamp(3.5rem, 7vw, 7.4rem);
  letter-spacing: -0.06em;
  line-height: 1;
}

.hero-statement {
  max-width: 39rem;
  margin-bottom: 2.6rem;
  color: #c2d3e1;
  font-size: clamp(1.08rem, 1.7vw, 1.35rem);
  line-height: 1.65;
  text-wrap: pretty;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.8rem;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 1.25rem;
  min-height: 3.35rem;
  padding: 0.85rem 1.25rem;
  border: 1px solid transparent;
  border-radius: 0.65rem;
  font-size: 0.86rem;
  font-weight: 750;
  transition: border-color 180ms ease, color 180ms ease, background 180ms ease, transform 180ms ease;
}

.button svg,
.text-link svg {
  width: 1.2rem;
  fill: none;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 1.6;
  transition: transform 180ms ease;
}

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

.button:hover svg,
.text-link:hover svg {
  transform: translateX(0.25rem);
}

.button-primary {
  color: #221603;
  background: linear-gradient(135deg, var(--sun-bright), var(--sun));
  box-shadow: 0 1rem 3.5rem rgba(255, 201, 92, 0.15), inset 0 1px rgba(255, 255, 255, 0.55);
}

.button-primary:hover {
  background: linear-gradient(135deg, #fff1c6, #ffd873);
}

.button-quiet {
  border-color: var(--line-strong);
  color: var(--ink-soft);
  background: linear-gradient(135deg, rgba(22, 51, 78, 0.38), rgba(6, 17, 31, 0.28));
  box-shadow: inset 0 1px rgba(255, 255, 255, 0.035);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
}

.button-quiet:hover {
  border-color: rgba(170, 245, 234, 0.55);
  color: var(--ink);
}

.hero-visual {
  position: relative;
  justify-self: end;
  width: min(100%, 38rem);
  aspect-ratio: 1;
}

.hero-visual::before {
  position: absolute;
  inset: 7%;
  border-radius: 50%;
  background:
    radial-gradient(circle at center, rgba(255, 201, 92, 0.08), transparent 21%),
    radial-gradient(circle, rgba(20, 73, 109, 0.52), rgba(3, 9, 19, 0) 70%);
  content: "";
  filter: blur(20px);
}

.constellation {
  position: relative;
  width: 100%;
  overflow: visible;
}

.visual-ring {
  fill: none;
  stroke: rgba(92, 190, 218, 0.25);
  stroke-dasharray: 2 8;
  stroke-linecap: round;
}

.ring-a {
  transform-origin: center;
  animation: rotate 42s linear infinite;
}

.ring-b {
  stroke: rgba(255, 201, 92, 0.24);
  stroke-dasharray: 1 11;
  transform-origin: center;
  animation: rotate-back 30s linear infinite;
}

.ring-c {
  stroke: rgba(91, 124, 255, 0.18);
  stroke-dasharray: none;
}

.connection {
  fill: none;
  stroke: url(#line-gradient);
  stroke-width: 1.45;
}

.connection-faint {
  opacity: 0.22;
}

.node {
  fill: var(--aqua-soft);
  stroke: rgba(85, 216, 232, 0.3);
  stroke-width: 11;
  transform-origin: center;
  animation: node-pulse 4.8s ease-in-out infinite;
}

.node-b,
.node-e {
  fill: var(--sun-bright);
  animation-delay: -1.8s;
}

.node-d,
.node-f {
  animation-delay: -3.1s;
}

.core-halo {
  fill: rgba(255, 201, 92, 0.055);
  stroke: rgba(255, 201, 92, 0.3);
  stroke-dasharray: 2 8;
}

.core-detail {
  fill: rgba(255, 255, 255, 0.64);
}

.visual-caption {
  position: absolute;
  right: 7%;
  bottom: 10%;
  left: 7%;
  display: flex;
  justify-content: space-between;
  margin: 0;
  color: #91abc0;
  font-size: 0.65rem;
  font-weight: 750;
  letter-spacing: 0.13em;
  text-transform: uppercase;
}

.scroll-cue {
  position: absolute;
  bottom: 2.6rem;
  left: var(--side);
  display: inline-flex;
  align-items: center;
  gap: 1rem;
  min-height: 2.75rem;
  color: var(--ink-muted);
  font-size: 0.67rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.scroll-line {
  position: relative;
  width: 4rem;
  height: 1px;
  overflow: hidden;
  background: var(--line-strong);
}

.scroll-line::after {
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, var(--aqua), var(--sun));
  content: "";
  transform: translateX(-100%);
  animation: scan-line 2.6s ease-in-out infinite;
}

.section {
  position: relative;
  width: min(100%, calc(var(--max-width) + var(--side) * 2));
  margin: 0 auto;
  padding: clamp(6rem, 11vw, 10rem) var(--side);
}

.section h2 {
  margin-bottom: 0;
  font-size: clamp(2.6rem, 5vw, 5.2rem);
  font-weight: 560;
  letter-spacing: -0.058em;
  line-height: 1.03;
}

html[data-language="zh"] .section h2 {
  line-height: 1.14;
}

.vision {
  display: grid;
  grid-template-columns: 4rem minmax(0, 1fr) minmax(18rem, 0.72fr);
  gap: clamp(2rem, 5vw, 5rem);
  align-items: start;
}

.section-index {
  padding-top: 0.15rem;
  color: var(--ink-muted);
  font-size: 0.65rem;
  font-weight: 750;
  letter-spacing: 0.18em;
  writing-mode: vertical-rl;
}

.section-index::after {
  display: block;
  width: 1px;
  height: 5rem;
  margin: 1rem auto 0;
  background: var(--line-strong);
  content: "";
}

.section-heading h2 {
  max-width: 11ch;
}

.vision-body {
  padding-top: 3.4rem;
  color: var(--ink-muted);
  font-size: 0.98rem;
}

.vision-body .lead {
  margin-bottom: 2rem;
  color: #dce7ef;
  font-size: clamp(1.15rem, 1.7vw, 1.4rem);
  line-height: 1.65;
}

.vision-signals {
  display: grid;
  gap: 0;
  margin: 2.5rem 0 0;
  padding: 0;
  border-top: 1px solid var(--line);
}

.vision-signals > div {
  display: grid;
  grid-template-columns: 5.5rem 1fr;
  gap: 1rem;
  padding: 0.95rem 0;
  border-bottom: 1px solid var(--line);
}

.vision-signals dt,
.vision-signals dd {
  margin: 0;
}

.vision-signals dt {
  color: var(--sun);
  font-size: 0.7rem;
  font-weight: 750;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.vision-signals dd {
  color: var(--ink-soft);
  font-size: 0.82rem;
}

.approach {
  width: 100%;
  max-width: none;
  padding-right: max(var(--side), calc((100vw - var(--max-width)) / 2 + var(--side)));
  padding-left: max(var(--side), calc((100vw - var(--max-width)) / 2 + var(--side)));
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background:
    radial-gradient(circle at 50% -20%, rgba(40, 101, 159, 0.18), transparent 42%),
    linear-gradient(135deg, rgba(7, 21, 39, 0.92), rgba(2, 9, 20, 0.88));
}

.section-intro {
  display: grid;
  grid-template-columns: 1fr minmax(16rem, 0.44fr);
  gap: 3rem;
  align-items: end;
  max-width: var(--max-width);
  margin: 0 auto clamp(3.5rem, 7vw, 6rem);
}

.section-intro > p {
  margin-bottom: 0.35rem;
  color: var(--ink-muted);
}

.approach-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0;
  list-style: none;
}

.approach-card {
  position: relative;
  min-height: 31rem;
  padding: clamp(1.6rem, 3vw, 2.6rem);
  overflow: hidden;
  border: 1px solid rgba(128, 182, 222, 0.2);
  background:
    linear-gradient(145deg, rgba(19, 45, 70, 0.46), rgba(4, 14, 27, 0.62) 62%),
    rgba(5, 15, 27, 0.55);
  box-shadow: inset 0 1px rgba(255, 255, 255, 0.04), 0 1.5rem 4rem rgba(0, 0, 0, 0.09);
  -webkit-backdrop-filter: blur(16px) saturate(120%);
  backdrop-filter: blur(16px) saturate(120%);
  transition: z-index 0s, border-color 250ms ease, background 250ms ease, transform 250ms ease;
}

.approach-card + .approach-card {
  margin-left: -1px;
}

.approach-card:hover {
  z-index: 1;
  border-color: rgba(255, 201, 92, 0.52);
  background:
    linear-gradient(145deg, rgba(22, 55, 82, 0.7), rgba(6, 18, 32, 0.82) 64%),
    rgba(8, 22, 39, 0.82);
  transform: translateY(-0.35rem);
}

.card-topline {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 5.2rem;
  color: var(--ink-muted);
  font-size: 0.66rem;
  font-weight: 750;
  letter-spacing: 0.16em;
}

.card-dot {
  width: 0.42rem;
  height: 0.42rem;
  border-radius: 50%;
  background: var(--sun);
  box-shadow: 0 0 1.2rem rgba(255, 201, 92, 0.5);
}

.approach-card h3 {
  margin-bottom: 1rem;
  font-size: clamp(2rem, 3vw, 3.2rem);
  font-weight: 570;
  letter-spacing: -0.04em;
}

.approach-card p {
  max-width: 23rem;
  color: #a8bbcc;
  font-size: 0.93rem;
}

.card-symbol {
  position: absolute;
  right: 1.5rem;
  bottom: 1.5rem;
  width: 7.5rem;
  fill: none;
  stroke: rgba(85, 216, 232, 0.3);
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 1.2;
  transition: stroke 250ms ease, transform 500ms cubic-bezier(.2, .8, .2, 1);
}

.approach-card:hover .card-symbol {
  stroke: rgba(255, 201, 92, 0.65);
  transform: rotate(9deg) scale(1.05);
}

.principles {
  display: grid;
  grid-template-columns: minmax(20rem, 0.78fr) minmax(0, 1fr);
  gap: clamp(3rem, 9vw, 9rem);
  align-items: center;
}

.principles-art {
  position: relative;
  display: grid;
  place-items: center;
  aspect-ratio: 1;
  border: 1px solid rgba(132, 189, 228, 0.22);
  background:
    linear-gradient(rgba(85, 216, 232, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(85, 216, 232, 0.035) 1px, transparent 1px),
    radial-gradient(circle, rgba(255, 201, 92, 0.06), rgba(23, 77, 113, 0.2) 38%, rgba(3, 11, 24, 0.2) 70%);
  background-size: 2.5rem 2.5rem, 2.5rem 2.5rem, auto;
  box-shadow: inset 0 1px rgba(255, 255, 255, 0.035), 0 2rem 7rem rgba(0, 0, 0, 0.18);
  -webkit-backdrop-filter: blur(16px);
  backdrop-filter: blur(16px);
}

.principles-art::before,
.principles-art::after {
  position: absolute;
  width: 1.5rem;
  height: 1.5rem;
  border-color: var(--sun);
  content: "";
}

.principles-art::before {
  top: -1px;
  left: -1px;
  border-top: 2px solid;
  border-left: 2px solid;
}

.principles-art::after {
  right: -1px;
  bottom: -1px;
  border-right: 2px solid;
  border-bottom: 2px solid;
}

.signal-disc {
  position: relative;
  display: grid;
  place-items: center;
  width: 52%;
  aspect-ratio: 1;
  border: 1px solid rgba(255, 201, 92, 0.5);
  border-radius: 50%;
  background:
    radial-gradient(circle at 42% 38%, rgba(255, 255, 255, 0.13), transparent 12%),
    radial-gradient(circle, rgba(255, 201, 92, 0.18), rgba(85, 216, 232, 0.04) 44%, transparent 45%);
  box-shadow: 0 0 5rem rgba(255, 201, 92, 0.08), inset 0 0 2.5rem rgba(255, 255, 255, 0.025);
}

.signal-disc::before,
.signal-disc::after {
  position: absolute;
  border-radius: 50%;
  content: "";
}

.signal-disc::before {
  width: 0.7rem;
  height: 0.7rem;
  background: var(--sun-bright);
  box-shadow: 0 0 1.6rem rgba(255, 201, 92, 0.9);
  transform: translate(5.8rem, -5.8rem);
}

.signal-disc::after {
  width: 1.2rem;
  height: 1.2rem;
  border: 1px solid var(--aqua);
  transform: translate(-5.5rem, 5.5rem);
}

.signal-disc > span {
  font-family: var(--display);
  font-size: clamp(2rem, 5vw, 4.4rem);
  font-weight: 650;
  letter-spacing: -0.05em;
}

.signal-orbit {
  position: absolute;
  inset: -22%;
  border: 1px dashed rgba(85, 216, 232, 0.26);
  border-radius: 50%;
  animation: rotate 28s linear infinite;
}

.signal-orbit-inner {
  inset: 15%;
  border-color: rgba(255, 201, 92, 0.34);
  animation-direction: reverse;
  animation-duration: 18s;
}

.coordinate {
  position: absolute;
  color: var(--ink-muted);
  font-size: 0.56rem;
  font-weight: 700;
  letter-spacing: 0.14em;
}

.coordinate-a {
  top: 1.2rem;
  right: 1.2rem;
}

.coordinate-b {
  bottom: 1.2rem;
  left: 1.2rem;
}

.principles-copy h2 {
  max-width: 10ch;
  margin-bottom: clamp(2.5rem, 5vw, 4rem);
}

.principles-list {
  margin: 0;
  padding: 0;
  list-style: none;
}

.principles-list li {
  display: grid;
  grid-template-columns: 2rem 1fr;
  gap: 1.4rem;
  padding: 1.55rem 0;
  border-top: 1px solid var(--line);
}

.principles-list li:last-child {
  border-bottom: 1px solid var(--line);
}

.principles-list > li > span {
  padding-top: 0.2rem;
  color: var(--sun);
  font-size: 0.62rem;
  font-weight: 750;
  letter-spacing: 0.12em;
}

.principles-list h3 {
  margin-bottom: 0.35rem;
  font-size: 1.15rem;
  letter-spacing: -0.02em;
}

.principles-list p {
  margin-bottom: 0;
  color: var(--ink-muted);
  font-size: 0.9rem;
}

.manifesto {
  display: grid;
  grid-template-columns: minmax(12rem, 0.3fr) 1fr;
  gap: clamp(3rem, 8vw, 8rem);
  align-items: center;
  min-height: 46rem;
  border-top: 1px solid var(--line);
}

.manifesto::before {
  position: absolute;
  z-index: -1;
  top: 12%;
  right: var(--side);
  bottom: 12%;
  left: var(--side);
  border: 1px solid rgba(128, 182, 222, 0.13);
  background:
    radial-gradient(circle at 12% 50%, rgba(255, 201, 92, 0.07), transparent 24%),
    linear-gradient(130deg, rgba(16, 41, 65, 0.36), rgba(2, 9, 19, 0.24));
  box-shadow: inset 0 1px rgba(255, 255, 255, 0.025);
  content: "";
  -webkit-backdrop-filter: blur(14px);
  backdrop-filter: blur(14px);
}

.manifesto-mark {
  display: grid;
  place-items: center;
  width: clamp(9rem, 16vw, 13rem);
  aspect-ratio: 1;
  border: 1px solid rgba(255, 201, 92, 0.38);
  border-radius: 50%;
  background:
    radial-gradient(circle at 35% 30%, rgba(255, 255, 255, 0.08), transparent 20%),
    rgba(85, 216, 232, 0.035);
  box-shadow: 0 0 4rem rgba(255, 201, 92, 0.055), inset 0 1px rgba(255, 255, 255, 0.05);
}

.manifesto-mark svg {
  width: 45%;
  fill: var(--sun-bright);
  stroke: var(--aqua-soft);
  stroke-linecap: round;
  stroke-width: 1.3;
}

.manifesto-mark svg path {
  fill: none;
}

.manifesto h2 {
  max-width: 14ch;
  margin-bottom: 1.8rem;
}

.manifesto h2 span {
  display: block;
}

.manifesto h2 .muted {
  color: #9cb1c4;
}

.manifesto-body {
  max-width: 47rem;
  margin-bottom: 2.5rem;
  color: var(--ink-soft);
  font-size: clamp(1rem, 1.45vw, 1.18rem);
  line-height: 1.75;
}

.text-link {
  display: inline-flex;
  align-items: center;
  gap: 1rem;
  min-height: 2.75rem;
  padding-bottom: 0.4rem;
  border-bottom: 1px solid var(--line-strong);
  color: var(--sun-bright);
  font-size: 0.82rem;
  font-weight: 700;
  transition: transform 180ms ease, border-color 180ms ease;
}

.site-footer {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: end;
  gap: 2rem;
  width: min(100%, calc(var(--max-width) + var(--side) * 2));
  min-height: 12rem;
  margin: 0 auto;
  padding: 3rem var(--side);
  border-top: 1px solid var(--line);
  color: var(--ink-muted);
  font-size: 0.7rem;
}

.site-footer > p {
  margin: 0;
}

.footer-brand {
  align-self: center;
}

.site-footer > p:nth-child(2) {
  font-weight: 700;
  letter-spacing: 0.08em;
  text-align: center;
  text-transform: uppercase;
}

.copyright {
  justify-self: end;
}

.noscript-note {
  position: fixed;
  z-index: 50;
  right: 1rem;
  bottom: 1rem;
  left: 1rem;
  padding: 1rem;
  border: 1px solid var(--sun);
  color: var(--night-deep);
  background: var(--sun);
  text-align: center;
}

.reveal {
  animation: reveal-in 700ms cubic-bezier(.2, .75, .25, 1) both;
}

.reveal-delay-one {
  animation-delay: 90ms;
}

.reveal-delay-two {
  animation-delay: 180ms;
}

.reveal-delay-three {
  animation-delay: 270ms;
}

[data-observe] {
  opacity: 0;
  transform: translateY(1.5rem);
  transition: opacity 650ms ease, transform 650ms cubic-bezier(.2, .75, .25, 1);
}

[data-observe].is-visible {
  opacity: 1;
  transform: translateY(0);
}

@keyframes rotate {
  to { transform: rotate(360deg); }
}

@keyframes rotate-back {
  to { transform: rotate(-360deg); }
}

@keyframes node-pulse {
  0%, 100% { opacity: 0.66; transform: scale(0.85); }
  50% { opacity: 1; transform: scale(1.12); }
}

@keyframes scan-line {
  0%, 18% { transform: translateX(-100%); }
  72%, 100% { transform: translateX(100%); }
}

@keyframes reveal-in {
  from { opacity: 0; transform: translateY(1.25rem); }
  to { opacity: 1; transform: translateY(0); }
}

@media (max-width: 960px) {
  .site-header {
    grid-template-columns: 1fr auto;
  }

  .site-nav {
    display: none;
  }

  .hero {
    grid-template-columns: 1fr;
    align-content: center;
    padding-top: 8rem;
  }

  .hero-copy {
    max-width: 44rem;
  }

  .hero-visual {
    position: absolute;
    z-index: -1;
    top: 22%;
    right: -12rem;
    width: 36rem;
    opacity: 0.36;
  }

  .vision {
    grid-template-columns: 2rem 1fr;
  }

  .vision-body {
    grid-column: 2;
    max-width: 42rem;
    padding-top: 0;
  }

  .section-intro {
    grid-template-columns: 1fr;
  }

  .section-intro > p {
    max-width: 40rem;
  }

  .approach-grid {
    grid-template-columns: 1fr;
  }

  .approach-card {
    min-height: 23rem;
  }

  .approach-card + .approach-card {
    margin-top: -1px;
    margin-left: 0;
  }

  .card-topline {
    margin-bottom: 3.2rem;
  }

  .principles {
    grid-template-columns: 1fr;
  }

  .principles-art {
    width: min(100%, 36rem);
  }

  .principles-copy {
    max-width: 44rem;
  }
}

@media (max-width: 640px) {
  :root {
    --side: 1.25rem;
  }

  html {
    scroll-padding-top: 5rem;
  }

  .site-header,
  .site-header.is-condensed {
    min-height: 4.7rem;
    padding-top: 0.7rem;
    padding-bottom: 0.7rem;
  }

  .brand-mark {
    width: 2.2rem;
    height: 2.2rem;
  }

  .brand-wordmark strong {
    font-size: 1rem;
  }

  .brand-wordmark > span {
    display: none;
  }

  .language-switcher {
    gap: 0.15rem;
  }

  .language-switcher button {
    min-width: 2.75rem;
    min-height: 2.75rem;
  }

  .hero {
    align-content: start;
    min-height: 47rem;
    padding-top: 8.5rem;
    padding-bottom: 7rem;
  }

  .hero-copy {
    padding-top: 0;
  }

  h1 {
    margin-bottom: 1.5rem;
    font-size: clamp(3.45rem, 17vw, 5.1rem);
  }

  html[data-language="zh"] h1 {
    max-width: 7em;
    font-size: clamp(3.1rem, 14.5vw, 4.7rem);
  }

  .hero-statement {
    max-width: 27rem;
    font-size: 1.03rem;
  }

  .hero-actions {
    align-items: stretch;
    flex-direction: column;
  }

  .button {
    width: 100%;
    min-height: 3.5rem;
  }

  .hero-visual {
    top: 27%;
    right: -13rem;
    width: 28rem;
    opacity: 0.2;
  }

  .visual-caption {
    display: none;
  }

  .scroll-cue {
    bottom: 2rem;
  }

  .section {
    padding-top: 5.6rem;
    padding-bottom: 5.6rem;
  }

  .section h2 {
    font-size: clamp(2.5rem, 12vw, 3.7rem);
  }

  .vision {
    grid-template-columns: 1fr;
  }

  .section-index {
    display: none;
  }

  .vision-body {
    grid-column: auto;
  }

  .approach-card {
    min-height: 22rem;
  }

  .card-symbol {
    width: 6rem;
  }

  .principles {
    gap: 4.5rem;
  }

  .principles-art {
    width: 100%;
  }

  .signal-disc::before {
    transform: translate(4.2rem, -4.2rem);
  }

  .signal-disc::after {
    transform: translate(-4rem, 4rem);
  }

  .manifesto {
    grid-template-columns: 1fr;
    min-height: 38rem;
  }

  .manifesto-mark {
    width: 7rem;
  }

  .site-footer {
    grid-template-columns: 1fr;
    align-items: start;
    gap: 1.7rem;
    min-height: 16rem;
  }

  .site-footer > p:nth-child(2) {
    text-align: left;
  }

  .copyright {
    justify-self: start;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

  [data-observe] {
    opacity: 1;
    transform: none;
  }
}

@media (prefers-contrast: more) {
  :root {
    --ink-soft: #e4eeee;
    --ink-muted: #bdcaca;
    --line: rgba(218, 241, 239, 0.45);
    --line-strong: rgba(218, 241, 239, 0.7);
  }
}