:root {
  color-scheme: dark;
  --blue: #000000;
  --blue-deep: #040404;
  --blue-soft: #0d0d0f;
  --paper: #111214;
  --paper-soft: rgba(255, 255, 255, 0.04);
  --paper-line: rgba(255, 255, 255, 0.1);
  --paper-line-strong: rgba(255, 255, 255, 0.17);
  --ink: #f5f7fa;
  --ink-soft: rgba(245, 247, 250, 0.78);
  --paper-ink: #f5f7fa;
  --paper-muted: rgba(245, 247, 250, 0.7);
  --font-display: "Cormorant Garamond", "Times New Roman", Georgia, serif;
  --font-body: "Crimson Text", Georgia, "Times New Roman", serif;
  --font-mono: "IBM Plex Mono", "SFMono-Regular", ui-monospace, Menlo, Monaco, Consolas, monospace;
  --font-ui: "IBM Plex Mono", "SFMono-Regular", ui-monospace, Menlo, Monaco, Consolas, monospace;
  --content-width: min(1360px, calc(100vw - 40px));
  --section-gap: clamp(24px, 3vw, 40px);
  --surface-shadow: 0 28px 64px rgba(0, 0, 0, 0.56);
  --surface-shadow-soft: 0 18px 36px rgba(0, 0, 0, 0.32);
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --topbar-height: 0px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  overflow-x: hidden;
  background:
    radial-gradient(circle at 20% 12%, rgba(255, 255, 255, 0.06), transparent 0 24%),
    radial-gradient(circle at 82% 14%, rgba(255, 255, 255, 0.035), transparent 0 18%),
    radial-gradient(circle at 50% 44%, rgba(255, 255, 255, 0.025), transparent 0 28%),
    linear-gradient(180deg, #010101 0%, var(--blue) 28%, var(--blue-deep) 100%);
  color: var(--ink);
  font-family: var(--font-body);
  line-height: 1.7;
  letter-spacing: 0.005em;
}

html[lang="zh-Hant"] {
  --font-display: "Noto Serif TC", "PingFang TC", "Songti TC", serif;
  --font-body: "Noto Serif TC", "PingFang TC", "Songti TC", serif;
  --font-ui: "Noto Sans TC", "PingFang TC", "Microsoft JhengHei", sans-serif;
}

html[lang="zh-Hant"] body {
  line-height: 1.86;
  letter-spacing: 0;
}

html[lang="en"] .lead {
  font-size: clamp(1.08rem, 1.52vw, 1.24rem);
}

html[lang="en"] .section-heading p,
html[lang="en"] .timeline-content p,
html[lang="en"] .mapping-row p,
html[lang="en"] .quote-card p,
html[lang="en"] .closing-callout p,
html[lang="en"] .footer p {
  font-size: 1.05rem;
}

html[lang="en"] .stat-card p,
html[lang="en"] .layer-card p,
html[lang="en"] .info-card p,
html[lang="en"] .tool-card p {
  font-size: 1.09rem;
}

img {
  max-width: 100%;
}

svg,
img {
  display: block;
}

button,
a.button {
  font: inherit;
}

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

code {
  font-family: var(--font-mono);
}

.page-noise,
.page-frame {
  position: fixed;
  pointer-events: none;
}

.page-noise {
  inset: 0;
  z-index: 0;
  opacity: 0.42;
  background:
    radial-gradient(circle at 30% 24%, rgba(255, 255, 255, 0.05), transparent 0 16%),
    radial-gradient(circle at 74% 28%, rgba(255, 255, 255, 0.04), transparent 0 14%),
    radial-gradient(circle at 58% 74%, rgba(255, 255, 255, 0.03), transparent 0 18%);
  mix-blend-mode: screen;
}

.page-frame {
  inset: 12px;
  z-index: 50;
  border: 1px solid rgba(255, 255, 255, 0.12);
}

.page-frame::before {
  content: "";
  position: absolute;
  inset: 14px;
  border: 1px solid rgba(255, 255, 255, 0.05);
}

.hero-shell,
main,
.footer {
  position: relative;
}

.hero-shell {
  z-index: 12;
  padding: calc(28px + var(--topbar-height)) 0 40px;
}

main,
.footer {
  z-index: 1;
}

.topbar {
  width: var(--content-width);
  margin: 0 auto;
  padding: 14px 0 28px;
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 24px;
  align-items: center;
  position: fixed;
  left: 0;
  right: 0;
  top: 14px;
  z-index: 30;
  isolation: isolate;
  will-change: top, opacity;
  backface-visibility: hidden;
  -webkit-backface-visibility: hidden;
  transition:
    top 220ms ease,
    opacity 220ms ease;
}

.topbar.is-hidden {
  top: calc((var(--topbar-height) + 18px) * -1);
  opacity: 0;
  pointer-events: none;
}

.topbar::before {
  content: "";
  position: absolute;
  inset: -14px -10px 0;
  background: linear-gradient(180deg, rgba(2, 2, 2, 0.94), rgba(10, 10, 11, 0.88));
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
  z-index: -1;
}

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

.brand-mark {
  width: 42px;
  height: 42px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid rgba(255, 255, 255, 0.18);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.03), rgba(255, 255, 255, 0.01));
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.04);
  color: var(--ink);
  font-family: var(--font-display);
  font-size: 1.4rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.brand-text {
  min-width: 0;
  display: grid;
  gap: 2px;
}

.brand-label {
  font-family: var(--font-ui);
  font-size: 0.68rem;
  line-height: 1.2;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.72);
}

.brand-text strong {
  font-family: var(--font-display);
  font-size: 1.22rem;
  line-height: 0.95;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.nav-links {
  display: flex;
  align-items: center;
  align-content: flex-start;
  justify-content: flex-start;
  flex-wrap: wrap;
  column-gap: 6px;
  row-gap: 8px;
}

.nav-links a,
.language-switcher a,
.top-cta,
.button,
.back-to-top {
  min-height: 44px;
  padding: 0 14px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid transparent;
  font-family: var(--font-ui);
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  transition:
    transform 180ms ease,
    background 180ms ease,
    color 180ms ease,
    border-color 180ms ease,
    box-shadow 180ms ease;
}

.nav-links a {
  color: rgba(255, 255, 255, 0.76);
}

.nav-links a:hover,
.nav-links a.is-active {
  border-color: rgba(255, 255, 255, 0.16);
  background: rgba(255, 255, 255, 0.04);
  color: var(--ink);
}

.top-cta,
.button-primary,
.back-to-top {
  background: linear-gradient(180deg, #f8fafc 0%, #e9edf2 100%);
  color: #050607;
  border-color: rgba(255, 255, 255, 0.24);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.75),
    0 14px 30px rgba(0, 0, 0, 0.24);
}

.top-cta:hover,
.button:hover,
.back-to-top:hover {
  transform: translateY(-2px);
  box-shadow: 0 18px 32px rgba(0, 0, 0, 0.34);
}

.topbar-actions {
  justify-self: end;
  display: flex;
  align-items: center;
  justify-content: flex-end;
  flex-wrap: wrap;
  gap: 12px;
}

.language-switcher {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 4px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  background: rgba(255, 255, 255, 0.03);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.02);
}

.language-switcher a {
  min-height: 34px;
  padding: 0 10px;
  color: rgba(255, 255, 255, 0.68);
}

.language-switcher a:hover,
.language-switcher a.is-current {
  border-color: rgba(255, 255, 255, 0.16);
  background: rgba(255, 255, 255, 0.08);
  color: var(--ink);
}

.language-switcher a.is-current {
  pointer-events: none;
}

.top-cta {
  justify-self: auto;
}

.hero {
  width: var(--content-width);
  margin: 0 auto;
  padding: clamp(36px, 6vw, 84px) 0 0;
  display: grid;
  grid-template-columns: minmax(0, 0.94fr) minmax(320px, 0.86fr);
  gap: clamp(28px, 4vw, 56px);
  align-items: start;
}

.hero-copy {
  padding-top: clamp(8px, 1.5vw, 22px);
}

.eyebrow,
.panel-kicker,
.stat-label,
.card-no,
.pill,
.repo-path,
.section-topline {
  font-family: var(--font-ui);
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.eyebrow {
  margin: 0 0 12px;
  font-size: 0.72rem;
  color: rgba(255, 255, 255, 0.74);
}

.hero h1,
.panel-header h2,
.section-heading h2,
.quote-card strong,
.stat-card strong,
.footer strong,
.hero-marquee span,
.footer-marquee,
.section::after {
  font-family: var(--font-display);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: -0.04em;
  text-wrap: balance;
}

.info-card h3,
.tool-card h3,
.timeline-content h3,
.mapping-row h3,
.closing-callout h3,
.layer-card h3 {
  font-family: var(--font-display);
  font-weight: 600;
  text-transform: none;
  letter-spacing: -0.03em;
  text-wrap: balance;
}

.hero h1 {
  margin: 0;
  max-width: 10ch;
  font-size: clamp(3.6rem, 8vw, 7.6rem);
  line-height: 0.88;
}

.lead {
  margin: 24px 0 0;
  max-width: 64ch;
  font-size: clamp(1.02rem, 1.45vw, 1.18rem);
  color: var(--ink-soft);
}

.button {
  border-color: rgba(255, 255, 255, 0.18);
}

.button-secondary {
  color: var(--ink);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.04), rgba(255, 255, 255, 0.02));
  border-color: rgba(255, 255, 255, 0.12);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.04);
}

.hero-stats {
  margin-top: 24px;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.stat-card {
  padding: 16px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.05), rgba(255, 255, 255, 0.03));
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.03);
}

.stat-label {
  display: inline-block;
  font-size: 0.66rem;
  color: rgba(255, 255, 255, 0.72);
}

.stat-card strong {
  display: block;
  margin-top: 8px;
  font-size: clamp(1.36rem, 2vw, 1.76rem);
  line-height: 0.94;
}

.stat-card p,
.layer-card p,
.section-heading p,
.info-card p,
.tool-card p,
.timeline-content p,
.mapping-row p,
.quote-card p,
.closing-callout p,
.footer p {
  margin: 10px 0 0;
}

.stat-card p {
  color: rgba(255, 255, 255, 0.74);
  font-size: 0.92rem;
}

.hero-visual {
  min-width: 0;
  position: relative;
}

.signal-figure {
  position: relative;
  min-height: clamp(430px, 54vw, 660px);
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.1);
  background:
    radial-gradient(circle at center, rgba(255, 255, 255, 0.05), transparent 0 18%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.025), rgba(255, 255, 255, 0.008));
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.03),
    var(--surface-shadow-soft);
  isolation: isolate;
  transform-origin: 50% 46%;
  will-change: transform, box-shadow;
  animation: signal-breathe 7.6s ease-in-out infinite;
}

.signal-figure::before,
.signal-figure::after {
  content: "";
  position: absolute;
  background: repeating-conic-gradient(
    from 0deg,
    rgba(255, 255, 255, 0.48) 0deg 0.9deg,
    transparent 0.9deg 4deg
  );
  opacity: 0.76;
}

.signal-figure::before {
  inset: 10% 8%;
  mask: radial-gradient(circle at center, transparent 0 14%, #000 14% 72%, transparent 72% 100%);
  transform-origin: 50% 50%;
  will-change: transform, opacity, inset;
  animation:
    signal-orbit-a 18s linear infinite,
    signal-spoke-breathe-a 8.3s cubic-bezier(0.42, 0, 0.22, 1) infinite,
    signal-spoke-awaken-a 15.8s ease-in-out infinite;
  animation-delay: 0s, 0s, -3.4s;
}

.signal-figure::after {
  inset: 18% 16%;
  opacity: 0.34;
  transform: rotate(17deg) scale(0.92);
  mask: radial-gradient(circle at center, transparent 0 24%, #000 24% 70%, transparent 70% 100%);
  transform-origin: 50% 50%;
  will-change: transform, opacity, inset;
  animation:
    signal-orbit-b 24s linear infinite reverse,
    signal-spoke-breathe-b 9.7s cubic-bezier(0.38, 0.04, 0.2, 1) infinite,
    signal-spoke-awaken-b 19.6s ease-in-out infinite;
  animation-delay: 0s, -1.6s, -8.1s;
}

.signal-halo {
  position: absolute;
  inset: 12% 18%;
  background:
    radial-gradient(circle at 48% 48%, rgba(226, 216, 255, 0.12), transparent 0 34%),
    radial-gradient(circle at 58% 54%, rgba(194, 168, 255, 0.12), transparent 0 48%),
    radial-gradient(circle at center, rgba(255, 255, 255, 0.05), transparent 0 58%);
  filter: blur(18px);
  will-change: transform, opacity, filter;
  animation:
    signal-halo-breathe 7.6s ease-in-out infinite,
    signal-halo-flicker 11.3s ease-in-out infinite;
}

.signal-core {
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  width: clamp(150px, 18.8vw, 198px);
  aspect-ratio: 1;
  border-radius: 50%;
  overflow: hidden;
  isolation: isolate;
  border: 1px solid rgba(236, 226, 255, 0.24);
  background:
    radial-gradient(circle at 50% 52%, rgba(0, 0, 0, 0.96) 0 14%, rgba(6, 6, 10, 0.98) 18%, rgba(20, 14, 30, 0.92) 30%, rgba(114, 88, 160, 0.18) 50%, rgba(255, 255, 255, 0.035) 69%, transparent 77%),
    radial-gradient(circle at 32% 28%, rgba(255, 255, 255, 0.2), rgba(226, 212, 255, 0.12) 18%, transparent 42%),
    linear-gradient(180deg, rgba(236, 228, 255, 0.08), rgba(194, 168, 255, 0.05) 56%, rgba(255, 255, 255, 0.014));
  display: grid;
  place-items: center;
  box-shadow:
    inset 0 0 28px rgba(255, 255, 255, 0.025),
    inset 0 -24px 42px rgba(0, 0, 0, 0.42),
    0 0 48px rgba(222, 210, 255, 0.1),
    0 0 92px rgba(176, 146, 255, 0.08);
  will-change: transform, box-shadow, filter;
  animation:
    signal-core-breathe 7.6s ease-in-out infinite,
    signal-core-shimmer 13.4s ease-in-out infinite;
}

.signal-core::before,
.signal-core::after {
  content: "";
  position: absolute;
  border-radius: 50%;
  pointer-events: none;
}

.signal-core::before {
  inset: 18%;
  z-index: 0;
  background:
    radial-gradient(circle at 50% 50%, rgba(0, 0, 0, 0.99) 0 34%, rgba(8, 8, 12, 0.96) 46%, rgba(34, 22, 54, 0.56) 63%, rgba(170, 142, 255, 0.1) 80%, transparent 100%);
  box-shadow:
    inset 0 8px 14px rgba(255, 255, 255, 0.025),
    inset 0 -18px 26px rgba(0, 0, 0, 0.58),
    0 0 26px rgba(118, 88, 174, 0.18);
}

.signal-core::after {
  inset: 28%;
  z-index: 1;
  border: 1px solid rgba(222, 210, 255, 0.08);
  box-shadow:
    inset 0 0 22px rgba(0, 0, 0, 0.38),
    0 0 18px rgba(182, 156, 255, 0.12);
  opacity: 0.9;
}

.signal-mark {
  position: relative;
  z-index: 2;
  width: 58px;
  height: 58px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid rgba(255, 255, 255, 0.22);
  background: transparent;
  box-shadow:
    0 0 24px rgba(222, 210, 255, 0.09),
    0 8px 18px rgba(0, 0, 0, 0.24);
  color: var(--ink);
  font-family: var(--font-display);
  font-size: 1.66rem;
  font-weight: 600;
  letter-spacing: 0.075em;
  line-height: 1;
  text-transform: uppercase;
}

.signal-ring {
  position: absolute;
  left: 50%;
  top: 50%;
  border-radius: 50%;
  border: 1px solid rgba(224, 212, 255, 0.2);
  box-shadow: 0 0 18px rgba(176, 146, 255, 0.06);
  transform-origin: 50% 50%;
  will-change: transform, opacity, border-color, box-shadow;
  animation: signal-ring-pulse 9.5s ease-in-out infinite;
}

.ring-a {
  width: 66%;
  height: 38%;
  transform: translate(-50%, -50%) rotate(16deg);
  animation-duration: 10.5s;
}

.ring-b {
  width: 46%;
  height: 74%;
  transform: translate(-50%, -50%) rotate(-18deg);
  animation-duration: 12.8s;
  animation-direction: reverse;
}

.ring-c {
  width: 82%;
  height: 82%;
  opacity: 0.26;
  transform: translate(-50%, -50%);
  animation-duration: 14.6s;
}

.signal-ray {
  position: absolute;
  width: 2px;
  top: 14%;
  bottom: 14%;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0), rgba(222, 210, 255, 0.4), rgba(190, 158, 255, 0.4), rgba(255, 255, 255, 0));
  opacity: 0.42;
  will-change: opacity, transform, filter, top, bottom;
  animation:
    signal-ray-flicker 9.7s ease-in-out infinite,
    signal-ray-length 8.9s cubic-bezier(0.44, 0.02, 0.24, 1) infinite,
    signal-ray-awaken 17.2s ease-in-out infinite;
}

.ray-a {
  left: 28%;
  transform: rotate(-25deg);
  animation-delay: -1.2s, -0.45s, -5.8s;
}

.ray-b {
  right: 28%;
  transform: rotate(25deg);
  animation-delay: -2.6s, -1.85s, -11.1s;
}

.hero-panel {
  position: relative;
  margin: -96px 24px 0;
  padding: 24px;
  background: linear-gradient(180deg, rgba(20, 21, 24, 0.98), rgba(14, 15, 17, 0.98));
  color: var(--paper-ink);
  border: 1px solid var(--paper-line);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.03),
    var(--surface-shadow);
}

.panel-kicker {
  display: inline-block;
  margin-bottom: 10px;
  font-size: 0.68rem;
  color: var(--paper-muted);
}

.panel-header h2 {
  margin: 0;
  max-width: 14ch;
  font-size: clamp(1.8rem, 2.5vw, 2.8rem);
  line-height: 0.92;
}

.layer-stack {
  display: grid;
  gap: 0;
  margin-top: 20px;
}

.layer-card {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 14px;
  padding: 14px 0;
  border-top: 1px solid var(--paper-line);
}

.layer-card:first-child {
  padding-top: 0;
  border-top: none;
}

.layer-index,
.timeline-index {
  border: 1px solid var(--paper-line-strong);
  font-family: var(--font-ui);
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--paper-muted);
}

.layer-index {
  width: 36px;
  height: 36px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.layer-card h3 {
  margin: 0;
  font-size: clamp(1.32rem, 1.7vw, 1.56rem);
  line-height: 0.96;
}

.layer-card p {
  color: var(--paper-muted);
  font-size: 0.94rem;
}

.hero-marquee {
  width: var(--content-width);
  margin: 22px auto 0;
  overflow: hidden;
}

.hero-marquee span {
  display: block;
  font-size: clamp(5rem, 15vw, 13rem);
  line-height: 0.78;
  color: rgba(255, 255, 255, 0.18);
}

main {
  padding: 10px 0 26px;
}

.section {
  width: var(--content-width);
  margin: 0 auto var(--section-gap);
  padding: clamp(22px, 3vw, 40px);
  position: relative;
  overflow: hidden;
  isolation: isolate;
  background: linear-gradient(180deg, rgba(20, 21, 24, 0.98), rgba(14, 15, 17, 0.98));
  color: var(--paper-ink);
  border: 1px solid var(--paper-line);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.03),
    var(--surface-shadow);
}

.section > * {
  position: relative;
  z-index: 1;
}

.section::before {
  content: "";
  position: absolute;
  inset: 14px;
  border: 1px solid rgba(255, 255, 255, 0.05);
  pointer-events: none;
  z-index: 0;
}

.section::after {
  content: attr(data-watermark);
  position: absolute;
  right: 16px;
  bottom: -28px;
  z-index: 0;
  font-size: clamp(4.8rem, 15vw, 11rem);
  line-height: 0.82;
  color: rgba(255, 255, 255, 0.04);
  pointer-events: none;
}

section[id] {
  scroll-margin-top: 96px;
}

.section-topline {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 18px;
  padding-bottom: 18px;
  border-bottom: 1px solid var(--paper-line);
  font-size: 0.68rem;
  color: var(--paper-muted);
}

.section-heading {
  max-width: 860px;
  margin-bottom: 28px;
}

.section-heading .eyebrow {
  color: var(--paper-muted);
}

.section-heading h2 {
  margin: 0;
  max-width: 12ch;
  font-size: clamp(2.7rem, 5vw, 4.8rem);
  line-height: 0.9;
}

.section-heading p:last-child {
  color: var(--paper-muted);
  font-size: 1.02rem;
  max-width: 68ch;
}

.card-grid,
.tool-grid,
.layer-stack {
  display: grid;
}

.card-grid {
  gap: 16px;
}

.card-grid-3 {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.card-grid-2 {
  grid-template-columns: repeat(2, minmax(0, 1fr));
  margin: 32px 0;
}

.info-card,
.tool-card,
.quote-card,
.timeline,
.mapping-table,
.closing-callout,
.team-standard {
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.038), rgba(255, 255, 255, 0.058));
  border: 1px solid var(--paper-line);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.025);
}

.info-card,
.tool-card {
  padding: 22px;
  transition:
    transform 180ms ease,
    border-color 180ms ease,
    background 180ms ease,
    box-shadow 180ms ease;
}

.info-card:hover,
.tool-card:hover {
  transform: translateY(-3px);
  border-color: var(--paper-line-strong);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.045), rgba(255, 255, 255, 0.07));
  box-shadow: 0 18px 28px rgba(0, 0, 0, 0.34);
}

.card-no {
  display: inline-flex;
  align-items: center;
  min-height: 30px;
  padding: 0 10px;
  margin-bottom: 16px;
  border: 1px solid var(--paper-line-strong);
  font-size: 0.68rem;
  color: var(--paper-muted);
}

.info-card h3,
.tool-card h3,
.timeline-content h3,
.mapping-row h3 {
  margin: 0;
  line-height: 0.96;
}

.info-card h3,
.tool-card h3 {
  font-size: clamp(1.48rem, 1.95vw, 2.08rem);
}

.info-card p,
.tool-card p,
.timeline-content p,
.mapping-row p,
.closing-callout p {
  color: var(--paper-muted);
}

.quote-card {
  margin-top: 18px;
  padding: 22px 24px;
  border-left: 4px solid var(--paper-ink);
}

.quote-card + .card-grid {
  margin-top: 24px;
}

.quote-card p {
  margin: 0;
  color: var(--paper-ink);
  font-size: 1.02rem;
}

.quote-card strong {
  color: var(--paper-ink);
  letter-spacing: -0.02em;
}

.guidance-list,
.policy-list {
  margin: 14px 0 0;
  padding-left: 1.2rem;
  color: var(--paper-muted);
}

.guidance-list li,
.policy-list li {
  margin: 0;
}

.guidance-list li + li,
.policy-list li + li {
  margin-top: 10px;
}

.team-standard {
  margin-top: 22px;
  padding: 24px;
}

.team-standard h3 {
  margin: 0;
  font-size: clamp(1.56rem, 1.9vw, 2.1rem);
  line-height: 1.02;
}

.team-standard .eyebrow {
  margin-bottom: 12px;
}

.timeline {
  padding: 24px;
}

.timeline-item {
  position: relative;
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 18px;
  padding: 0 0 22px;
}

.timeline-item:last-child {
  padding-bottom: 0;
}

.timeline-item:not(:last-child)::after {
  content: "";
  position: absolute;
  left: 17px;
  top: 36px;
  bottom: 0;
  width: 1px;
  background: rgba(255, 255, 255, 0.14);
}

.timeline-index {
  width: 34px;
  height: 34px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--paper);
  position: relative;
  z-index: 1;
}

.timeline-content h3 {
  font-size: clamp(1.48rem, 1.82vw, 2rem);
}

.tool-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.tool-meta {
  margin-bottom: 16px;
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 10px;
  flex-wrap: wrap;
}

.pill,
.repo-path {
  display: inline-flex;
  align-items: center;
  min-height: 30px;
  padding: 0 10px;
  font-size: 0.68rem;
  border: 1px solid var(--paper-line-strong);
}

.pill {
  color: var(--paper-ink);
  background: rgba(255, 255, 255, 0.06);
}

.pill-accent {
  background: var(--paper-ink);
  color: #000;
}

.pill-outline {
  background: transparent;
  color: var(--paper-muted);
}

.repo-path {
  color: var(--paper-muted);
}

.executive-summary {
  width: var(--content-width);
  margin: 0 auto;
  padding: 6px 0 28px;
}

.executive-grid {
  margin-top: 24px;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.summary-panel {
  padding: 24px;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.038), rgba(255, 255, 255, 0.058));
  border: 1px solid var(--paper-line);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.025);
}

.summary-panel h3 {
  margin: 0;
  font-size: clamp(1.48rem, 1.85vw, 2rem);
  line-height: 1.02;
}

.mapping-table {
  overflow: hidden;
}

.mapping-row {
  display: grid;
  grid-template-columns: minmax(0, 0.92fr) minmax(0, 1.08fr);
  gap: 22px;
  padding: 20px 22px;
  border-top: 1px solid var(--paper-line);
}

.mapping-row:first-child {
  border-top: none;
}

.mapping-head {
  background: rgba(255, 255, 255, 0.08);
  color: var(--paper-ink);
  font-family: var(--font-ui);
  font-size: 0.68rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.mapping-head > div {
  font-weight: 600;
}

.mapping-row h3 {
  font-size: clamp(1.38rem, 1.65vw, 1.82rem);
}

.closing-callout {
  margin-top: 22px;
  padding: 24px;
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(260px, 0.95fr);
  gap: 18px;
  align-items: start;
}

.closing-callout .eyebrow {
  margin-bottom: 12px;
  font-family: var(--font-display);
  font-size: 0.84rem;
  letter-spacing: 0.045em;
  text-transform: none;
  color: rgba(255, 255, 255, 0.68);
}

.closing-callout h3 {
  margin: 0;
  font-size: clamp(1.9rem, 2.2vw, 2.8rem);
  line-height: 1.08;
}

.footer {
  width: var(--content-width);
  margin: 0 auto;
  padding: 18px 0 84px;
}

.footer-grid {
  padding-top: 22px;
  border-top: 1px solid rgba(255, 255, 255, 0.16);
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 24px;
  align-items: end;
}

.footer-grid > :last-child {
  justify-self: end;
  display: flex;
  align-items: flex-end;
}

.footer p {
  color: rgba(255, 255, 255, 0.78);
  max-width: 72ch;
}

.footer strong.footer-callback {
  display: block;
  max-width: 30ch;
  font-size: clamp(1.34rem, 2vw, 1.72rem);
  line-height: 1.06;
  text-transform: none;
  letter-spacing: -0.02em;
  font-style: normal;
}

.footer-note {
  max-width: 38ch;
  font-size: 0.96rem;
  line-height: 1.58;
  color: rgba(255, 255, 255, 0.58);
}

.footer-email-link {
  color: rgba(255, 255, 255, 0.6);
  text-decoration: none;
  overflow-wrap: anywhere;
}

.footer-email-link:hover {
  color: rgba(255, 255, 255, 0.84);
  text-decoration: underline;
  text-decoration-color: rgba(255, 255, 255, 0.24);
  text-underline-offset: 0.18em;
}

.back-to-top {
  margin-top: 0;
}

.footer-marquee {
  margin-top: 14px;
  font-size: clamp(4.8rem, 16vw, 14rem);
  line-height: 0.78;
  color: rgba(255, 255, 255, 0.18);
  overflow: hidden;
}

html[lang="zh-Hant"] .brand-label,
html[lang="zh-Hant"] .nav-links a,
html[lang="zh-Hant"] .language-switcher a,
html[lang="zh-Hant"] .top-cta,
html[lang="zh-Hant"] .button,
html[lang="zh-Hant"] .back-to-top,
html[lang="zh-Hant"] .eyebrow,
html[lang="zh-Hant"] .panel-kicker,
html[lang="zh-Hant"] .stat-label,
html[lang="zh-Hant"] .card-no,
html[lang="zh-Hant"] .pill,
html[lang="zh-Hant"] .repo-path,
html[lang="zh-Hant"] .section-topline,
html[lang="zh-Hant"] .layer-index,
html[lang="zh-Hant"] .timeline-index,
html[lang="zh-Hant"] .mapping-head {
  font-family: var(--font-ui);
  letter-spacing: 0.08em;
  text-transform: none;
}

html[lang="zh-Hant"] .brand-text strong,
html[lang="zh-Hant"] .hero h1,
html[lang="zh-Hant"] .panel-header h2,
html[lang="zh-Hant"] .section-heading h2,
html[lang="zh-Hant"] .info-card h3,
html[lang="zh-Hant"] .tool-card h3,
html[lang="zh-Hant"] .timeline-content h3,
html[lang="zh-Hant"] .mapping-row h3,
html[lang="zh-Hant"] .closing-callout .eyebrow,
html[lang="zh-Hant"] .closing-callout h3,
html[lang="zh-Hant"] .layer-card h3,
html[lang="zh-Hant"] .hero-marquee span,
html[lang="zh-Hant"] .footer-marquee {
  letter-spacing: 0.02em;
  text-transform: none;
}

html[lang="zh-Hant"] .hero h1 {
  max-width: 14ch;
  line-height: 1.14;
}

html[lang="zh-Hant"] .stat-card strong {
  line-height: 1.12;
}

html[lang="zh-Hant"] .info-card h3 {
  line-height: 1.18;
}

html[lang="zh-Hant"] .panel-header h2,
html[lang="zh-Hant"] .section-heading h2,
html[lang="zh-Hant"] .layer-card h3,
html[lang="zh-Hant"] .mapping-row h3 {
  line-height: 1.12;
}

html[lang="zh-Hant"] .closing-callout h3 {
  line-height: 1.18;
}

html[lang="zh-Hant"] .hero-marquee span,
html[lang="zh-Hant"] .footer-marquee {
  line-height: 0.92;
}

html[lang="zh-Hant"] .nav-links {
  row-gap: 10px;
}

@keyframes signal-breathe {
  0%,
  100% {
    transform: translateY(0) scale(1);
    box-shadow:
      inset 0 1px 0 rgba(255, 255, 255, 0.03),
      var(--surface-shadow-soft);
  }

  50% {
    transform: translateY(-8px) scale(1.012);
    box-shadow:
      inset 0 1px 0 rgba(255, 255, 255, 0.03),
      0 24px 44px rgba(0, 0, 0, 0.4);
  }
}

@keyframes signal-halo-breathe {
  0%,
  100% {
    opacity: 0.78;
    transform: scale(0.98);
    filter: blur(18px);
  }

  50% {
    opacity: 1;
    transform: scale(1.03);
    filter: blur(22px);
  }
}

@keyframes signal-orbit-a {
  0%,
  100% {
    transform: rotate(0deg) scale(1);
    opacity: 0.68;
  }

  50% {
    transform: rotate(8deg) scale(1.015);
    opacity: 0.88;
  }
}

@keyframes signal-orbit-b {
  0%,
  100% {
    transform: rotate(17deg) scale(0.92);
    opacity: 0.24;
  }

  50% {
    transform: rotate(9deg) scale(0.95);
    opacity: 0.42;
  }
}

@keyframes signal-ring-pulse {
  0%,
  100% {
    opacity: 0.28;
    border-color: rgba(224, 212, 255, 0.18);
    box-shadow: 0 0 14px rgba(176, 146, 255, 0.05);
  }

  50% {
    opacity: 0.56;
    border-color: rgba(210, 184, 255, 0.34);
    box-shadow: 0 0 26px rgba(176, 146, 255, 0.12);
  }
}

@keyframes signal-core-breathe {
  0%,
  100% {
    transform: translate(-50%, -50%) scale(1);
    box-shadow:
      0 0 52px rgba(222, 210, 255, 0.1),
      0 0 92px rgba(176, 146, 255, 0.06);
  }

  50% {
    transform: translate(-50%, -50%) scale(1.03);
    box-shadow:
      0 0 70px rgba(222, 210, 255, 0.16),
      0 0 112px rgba(176, 146, 255, 0.1);
  }
}

@keyframes signal-spoke-breathe-a {
  0%,
  100% {
    inset: 12% 10%;
  }

  24% {
    inset: 10.8% 8.9%;
  }

  53% {
    inset: 7.2% 5.4%;
  }

  76% {
    inset: 8.6% 6.8%;
  }
}

@keyframes signal-spoke-breathe-b {
  0%,
  100% {
    inset: 20% 18%;
  }

  29% {
    inset: 18.8% 16.9%;
  }

  58% {
    inset: 14.2% 12.1%;
  }

  81% {
    inset: 16.6% 14.6%;
  }
}

@keyframes signal-ray-length {
  0%,
  100% {
    top: 14%;
    bottom: 14%;
  }

  18% {
    top: 12.8%;
    bottom: 13.6%;
  }

  47% {
    top: 5.2%;
    bottom: 6.8%;
  }

  72% {
    top: 8.4%;
    bottom: 7.2%;
  }
}

@keyframes signal-spoke-awaken-a {
  0%,
  100% {
    opacity: 0.58;
    filter: blur(0px);
  }

  18% {
    opacity: 0.44;
  }

  36% {
    opacity: 0.72;
  }

  63% {
    opacity: 0.82;
    filter: blur(0.12px);
  }

  84% {
    opacity: 0.5;
  }
}

@keyframes signal-spoke-awaken-b {
  0%,
  100% {
    opacity: 0.18;
    filter: blur(0px);
  }

  22% {
    opacity: 0.12;
  }

  41% {
    opacity: 0.2;
  }

  69% {
    opacity: 0.42;
    filter: blur(0.2px);
  }

  87% {
    opacity: 0.16;
  }
}

@keyframes signal-ray-awaken {
  0%,
  100% {
    opacity: 0.2;
  }

  14% {
    opacity: 0.16;
  }

  33% {
    opacity: 0.24;
  }

  57% {
    opacity: 0.48;
  }

  74% {
    opacity: 0.3;
  }

  91% {
    opacity: 0.42;
  }
}

@keyframes signal-halo-flicker {
  0%,
  100% {
    opacity: 0.82;
  }

  17% {
    opacity: 0.74;
  }

  36% {
    opacity: 0.92;
  }

  58% {
    opacity: 0.78;
  }

  73% {
    opacity: 0.96;
  }

  88% {
    opacity: 0.8;
  }
}

@keyframes signal-core-shimmer {
  0%,
  100% {
    filter: brightness(1) saturate(1) hue-rotate(0deg);
  }

  22% {
    filter: brightness(0.96) saturate(1.04) hue-rotate(-10deg);
  }

  41% {
    filter: brightness(1.06) saturate(1.12) hue-rotate(14deg);
  }

  67% {
    filter: brightness(0.98) saturate(1.05) hue-rotate(-8deg);
  }

  84% {
    filter: brightness(1.08) saturate(1.14) hue-rotate(18deg);
  }
}

@keyframes signal-ray-flicker {
  0%,
  100% {
    opacity: 0.3;
    filter: blur(0px);
  }

  21% {
    opacity: 0.5;
    filter: blur(0.2px);
  }

  49% {
    opacity: 0.34;
    filter: blur(0px);
  }

  71% {
    opacity: 0.58;
    filter: blur(0.35px);
  }

  89% {
    opacity: 0.38;
    filter: blur(0px);
  }
}

[data-reveal] {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 520ms ease, transform 520ms ease;
}

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

@media (max-width: 1180px) {
  .topbar {
    grid-template-columns: 1fr;
    justify-items: start;
    gap: 14px;
    padding-bottom: 18px;
  }

  .topbar-actions {
    justify-self: start;
    justify-content: flex-start;
  }

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

  .hero-panel {
    margin: -72px 18px 0;
  }

  .card-grid-3 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 860px) {
  :root {
    --content-width: min(100vw - 24px, 1360px);
    --section-gap: 20px;
    --topbar-height: 0px;
  }

  .hero-shell {
    padding-top: 28px;
  }

  .topbar {
    position: relative;
    left: auto;
    right: auto;
    top: auto;
    transition: none;
  }

  .topbar.is-hidden {
    top: auto;
    opacity: 1;
    pointer-events: auto;
  }

  .hero {
    padding-top: 24px;
  }

  .hero h1,
  .section-heading h2,
  .panel-header h2,
  .closing-callout h3 {
    max-width: none;
  }

  .hero-stats,
  .card-grid-2,
  .card-grid-3,
  .tool-grid,
  .closing-callout,
  .footer-grid,
  .mapping-row,
  .executive-grid {
    grid-template-columns: 1fr;
  }

  .footer-grid > :last-child {
    justify-self: start;
    display: block;
  }

  .back-to-top {
    margin-top: 20px;
  }

  .mapping-head {
    display: none;
  }

  .section::after,
  .hero-marquee span,
  .footer-marquee {
    font-size: clamp(3.6rem, 19vw, 6.4rem);
  }
}

@media (max-width: 680px) {
  .page-frame {
    inset: 8px;
  }

  .page-frame::before {
    inset: 10px;
  }

  .topbar::before {
    inset: 0 -4px;
  }

  .nav-links {
    justify-content: flex-start;
  }

  .topbar-actions {
    width: 100%;
    flex-direction: column;
    align-items: flex-start;
  }

  .language-switcher {
    align-self: flex-start;
  }

  .nav-links a,
  .top-cta,
  .button,
  .back-to-top {
    width: 100%;
  }

  .hero-panel {
    margin: -56px 12px 0;
    padding: 18px;
  }

  .section {
    padding: 20px;
  }

  .section::before {
    inset: 10px;
  }

  .section-topline {
    flex-direction: column;
    align-items: flex-start;
  }

  .mapping-row,
  .timeline,
  .info-card,
  .tool-card,
  .quote-card,
  .closing-callout {
    padding-left: 18px;
    padding-right: 18px;
  }

  .timeline-item {
    gap: 14px;
  }

  .timeline-item:not(:last-child)::after {
    left: 16px;
  }
}

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

  *,
  *::before,
  *::after {
    animation: none !important;
    transition-duration: 0.01ms !important;
    transition-delay: 0ms !important;
  }

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