:root {
  --ink: #090b10;
  --ink-rgb: 9 11 16;
  --paper: #f1efe9;
  --paper-rgb: 241 239 233;
  --paper-dim: #b8b8b0;
  --paper-dim-rgb: 184 184 176;
  --surface-rgb: 255 255 255;
  --line: rgb(var(--paper-rgb) / 18%);
  --line-strong: rgb(var(--paper-rgb) / 32%);
  --acid: #d4ff4f;
  --acid-rgb: 212 255 79;
  --violet: #9c8cff;
  --violet-rgb: 156 140 255;
  --blue: #81c8ff;
  --serif: Georgia, 'Times New Roman', serif;
  --sans: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}

html[data-theme="light"] {
  --ink: #f3f1e9;
  --ink-rgb: 243 241 233;
  --paper: #12151b;
  --paper-rgb: 18 21 27;
  --paper-dim: #62655f;
  --paper-dim-rgb: 98 101 95;
  --surface-rgb: 9 11 16;
  --line: rgb(var(--paper-rgb) / 14%);
  --line-strong: rgb(var(--paper-rgb) / 26%);
  --acid: #668400;
  --acid-rgb: 102 132 0;
  --violet: #695bc2;
  --violet-rgb: 105 91 194;
  --blue: #247dad;
}

html[lang="zh-CN"] {
  --sans: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", sans-serif;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; scroll-padding-top: 24px; background: var(--ink); color-scheme: dark; }
html[data-theme="light"] { color-scheme: light; }

body {
  margin: 0;
  overflow-x: hidden;
  background: var(--ink);
  color: var(--paper);
  font-family: var(--sans);
  -webkit-font-smoothing: antialiased;
}

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

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

::selection { background: var(--acid); color: var(--ink); }

.skip-link {
  position: fixed;
  top: 14px;
  left: 14px;
  z-index: 20;
  padding: 12px 14px;
  background: var(--acid);
  color: var(--ink);
  font-size: 10px;
  font-weight: 800;
  letter-spacing: .14em;
  transform: translateY(-160%);
  transition: transform .2s ease;
}

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

a:focus-visible {
  outline: 2px solid var(--acid);
  outline-offset: 6px;
}

.grain {
  position: fixed;
  inset: 0;
  z-index: 10;
  pointer-events: none;
  opacity: .075;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 180 180' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.85' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='.38'/%3E%3C/svg%3E");
  mix-blend-mode: soft-light;
}

html[data-theme="light"] .grain { opacity: .04; mix-blend-mode: multiply; }

.site-frame { width: 100%; margin: 0 auto; padding-inline: clamp(1rem, 4vw, 2.75rem); overflow: clip; }

.topbar {
  position: relative;
  z-index: 5;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: clamp(.75rem, 2vw, 1.5rem);
  min-height: clamp(4.5rem, 7vw, 5.5rem);
  padding-block: clamp(.75rem, 2vw, 1rem);
  border-bottom: 1px solid var(--line);
  color: var(--paper-dim);
  font-size: clamp(8px, .7vw, 10px);
  font-weight: 700;
  letter-spacing: .16em;
}

.brand { display: inline-flex; flex: 0 1 auto; align-items: center; gap: 12px; color: var(--paper); letter-spacing: .2em; }
.brand-mark { position: relative; display: inline-flex; align-items: end; gap: 2px; width: 18px; height: 18px; }
.brand-mark i { display: block; width: 4px; border-radius: 5px 5px 1px 1px; background: var(--acid); transform: skew(-18deg); }
.brand-mark i:nth-child(1) { height: 8px; opacity: .55; }
.brand-mark i:nth-child(2) { height: 14px; }
.brand-mark i:nth-child(3) { height: 18px; opacity: .75; }
.topbar-actions { display: flex; flex: 1 1 24rem; flex-wrap: wrap; align-items: center; justify-content: flex-end; gap: clamp(.8rem, 2vw, 1.75rem); }
.topbar-meta { display: flex; align-items: center; gap: 9px; white-space: nowrap; }
.live-dot { width: 6px; height: 6px; border-radius: 50%; background: var(--acid); box-shadow: 0 0 14px var(--acid); }
.site-controls { display: flex; align-items: center; gap: clamp(.75rem, 1.8vw, 1.25rem); }
.control-button { display: inline-flex; align-items: center; gap: .5rem; min-height: 2.75rem; padding: .5rem 0; border: 0; background: transparent; color: var(--paper-dim); font: inherit; letter-spacing: .12em; cursor: pointer; }
.control-button:hover { color: var(--paper); }
.control-button:focus-visible { outline: 2px solid var(--acid); outline-offset: 4px; }
.control-glyph { display: grid; place-items: center; width: 1.5rem; height: 1.5rem; border: 1px solid var(--line-strong); border-radius: 50%; color: var(--acid); font-size: .75rem; letter-spacing: 0; }

.hero { position: relative; display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 20rem), 1fr)); gap: clamp(2rem, 8vw, 8rem); min-height: clamp(34rem, 84svh, 50rem); align-items: center; isolation: isolate; container: hero / inline-size; }
#signal-canvas { position: absolute; inset: 0; z-index: -2; width: 100%; height: 100%; }
.hero-wash { position: absolute; inset: 0; z-index: -1; pointer-events: none; background: radial-gradient(ellipse at 72% 47%, rgb(131 113 255 / 17%), transparent 31%), linear-gradient(90deg, var(--ink) 0%, rgb(var(--ink-rgb) / 83%) 42%, rgb(var(--ink-rgb) / 10%) 100%); transition: filter .8s ease, opacity .8s ease; }
.hero.is-entered .hero-wash { filter: saturate(1.35); opacity: .9; }
.hero-content { width: min(100%, 42rem); padding-block: clamp(5rem, 10vw, 7rem) clamp(6rem, 12vw, 8rem); }
.eyebrow, .section-tag { display: flex; align-items: center; gap: 13px; margin: 0 0 26px; color: var(--acid); font-size: 10px; font-weight: 800; letter-spacing: .2em; }
.eyebrow span, .section-tag span { color: var(--paper-dim); }
h1, h2, h3, p { margin-top: 0; }
h1, h2, h3 { text-wrap: balance; }
h1 { max-width: 720px; margin-bottom: 30px; font-size: clamp(64px, 10.2vw, 150px); font-weight: 520; letter-spacing: -.075em; line-height: .86; }
h1 em, h2 em { color: var(--paper-dim); font-family: var(--serif); font-weight: 400; letter-spacing: -.09em; }
.hero-copy { width: min(100%, 22rem); margin-bottom: clamp(2rem, 4vw, 2.5rem); color: var(--paper-dim); font-size: clamp(.95rem, 1vw, 1rem); line-height: 1.7; }
.explore-link, .text-link { display: inline-flex; align-items: center; gap: 20px; color: var(--paper); font-size: 10px; font-weight: 800; letter-spacing: .18em; }
.link-arrow { display: grid; place-items: center; width: 34px; height: 34px; border: 1px solid var(--line-strong); border-radius: 50%; color: var(--acid); font-size: 17px; transition: background .25s ease, color .25s ease, transform .25s ease; }
.explore-link:hover .link-arrow, .text-link:hover .back-arrow { background: var(--acid); color: var(--ink); transform: rotate(-45deg); }
.hero-note { justify-self: end; align-self: end; display: grid; gap: 8px; width: min(100%, 10rem); margin-bottom: clamp(2rem, 9vh, 6rem); color: var(--paper-dim); font-size: 9px; letter-spacing: .13em; }
.hero-note strong { color: var(--paper); font-size: 11px; letter-spacing: .08em; }
.note-label, .note-small { font-size: 9px; line-height: 1.6; }
.note-line { width: 100%; height: 1px; margin: 5px 0; background: var(--line-strong); }
.hero-scroll { position: absolute; bottom: clamp(1.5rem, 4vw, 2.25rem); left: clamp(.25rem, 1vw, .75rem); display: flex; align-items: center; gap: 10px; color: var(--paper-dim); font-size: clamp(8px, .65vw, 9px); letter-spacing: .18em; transform: rotate(-90deg) translateX(-100%); transform-origin: left top; }
.hero-scroll span { display: block; width: 30px; height: 1px; background: var(--acid); }

.section-grid { display: flex; flex-wrap: wrap; align-items: flex-start; gap: clamp(2rem, 5vw, 4rem) clamp(1.5rem, 4vw, 2.5rem); }
.root-section { position: relative; min-height: clamp(34rem, 58vw, 42.5rem); padding-block: clamp(5rem, 12vw, 9.375rem); border-top: 1px solid var(--line); container: root / inline-size; }
.root-section > .section-tag { flex: 1 1 8rem; }
.root-title { flex: 1.7 1 18rem; min-width: 0; }
.root-title h2 { margin: 0; font-size: clamp(45px, 7vw, 96px); font-weight: 500; letter-spacing: -.075em; line-height: .92; }
.root-copy { flex: 1 1 13rem; min-width: 0; padding-top: 10px; color: var(--paper-dim); font-size: clamp(.875rem, 1vw, .95rem); line-height: 1.75; }
.root-copy .muted { margin-top: 24px; color: rgb(var(--paper-dim-rgb) / 55%); }
.whisper-trigger { display: inline-flex; align-items: center; gap: 10px; margin-top: clamp(1.75rem, 4vw, 2.5rem); padding: 0; border: 0; background: transparent; color: var(--paper-dim); font: 800 10px var(--sans); letter-spacing: .18em; cursor: pointer; }
.whisper-trigger:hover { color: var(--paper); }
.whisper-trigger:focus-visible, .root-orbit:focus-visible { outline: 2px solid var(--acid); outline-offset: 8px; }
.whisper-arrow { display: grid; place-items: center; width: 24px; height: 24px; border: 1px solid var(--line-strong); border-radius: 50%; color: var(--acid); font-size: 14px; letter-spacing: 0; transition: background .25s ease, color .25s ease, transform .25s ease; }
.whisper-trigger:hover .whisper-arrow { background: var(--acid); color: var(--ink); transform: rotate(-45deg); }
.whisper-output { max-width: 18rem; margin: 14px 0 0; color: var(--acid); font-size: 12px; line-height: 1.6; }
.root-orbit { position: absolute; right: clamp(0rem, 6vw, 6%); bottom: clamp(3rem, 8vw, 5.625rem); width: clamp(8rem, 16vw, 11.875rem); height: clamp(8rem, 16vw, 11.875rem); padding: 0; border: 0; background: transparent; color: inherit; font: inherit; cursor: pointer; }
.root-orbit:hover .orbit-core { box-shadow: 0 0 30px 10px rgb(var(--acid-rgb) / 52%); transform: translate(-50%, -50%) scale(1.3); }
.root-orbit.is-pulsing .orbit-ring { animation: orbit-pulse 1.1s ease-out; }
.root-orbit.is-pulsing .orbit-core { animation: core-pulse 1.1s ease-out; }
.orbit-ring { position: absolute; inset: 0; border: 1px solid var(--line-strong); border-radius: 50%; transform: rotate(28deg) scaleX(.38); }
.ring-two { inset: 18px; border-color: rgb(var(--acid-rgb) / 36%); transform: rotate(-48deg) scaleX(.58); }
.orbit-core { position: absolute; top: 50%; left: 50%; width: 10px; height: 10px; border-radius: 50%; background: var(--acid); box-shadow: 0 0 24px 6px rgb(var(--acid-rgb) / 42%); transform: translate(-50%, -50%); transition: box-shadow .3s ease, transform .3s ease; }
.orbit-label { position: absolute; right: -18px; bottom: 11px; color: var(--paper-dim); font: 10px var(--sans); letter-spacing: .2em; }

.garden-section, .signal-section { padding-block: clamp(5rem, 10vw, 7.5rem) clamp(6rem, 12vw, 10rem); border-top: 1px solid var(--line); }
.garden-section { container: garden / inline-size; }
.garden-heading, .signal-heading { align-items: flex-end; margin-bottom: clamp(3.5rem, 7vw, 4.875rem); }
.garden-heading h2, .signal-heading h2 { flex: 1.7 1 18rem; min-width: 0; }
.garden-intro, .signal-heading > p { flex: 1 1 13rem; max-width: 15rem; margin: 0; color: var(--paper-dim); font-size: clamp(.875rem, 1vw, .95rem); line-height: 1.7; }
.garden-counts, .now-stats { display: flex; flex-wrap: wrap; gap: 1rem 1.5rem; margin-top: 2rem; color: var(--paper-dim); font-size: 9px; letter-spacing: .12em; }
.garden-counts strong, .now-stats strong { display: block; margin-bottom: 4px; color: var(--paper); font-size: 22px; font-weight: 500; letter-spacing: -.04em; }
.garden-counts small, .now-stats small { font-size: 8px; }
.growth-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: clamp(1rem, 2vw, 1.5rem); }
.growth-card { position: relative; width: 100%; min-height: clamp(19rem, 28vw, 23rem); display: flex; flex-direction: column; padding: clamp(1.25rem, 2.4vw, 1.625rem); border: 1px solid var(--line); border-radius: 12px; background: rgb(var(--surface-rgb) / 2%); color: inherit; font: inherit; text-align: left; cursor: pointer; transition: border-color .3s ease, background .3s ease, transform .3s ease; }
.growth-card:hover, .growth-card:focus-visible { border-color: var(--acid); background: rgb(var(--acid-rgb) / 5%); transform: translateY(-4px); }
.growth-card:focus-visible { outline: 2px solid var(--acid); outline-offset: 8px; }
.growth-card-symbol { margin-left: auto; color: var(--acid); font-size: 1.35rem; font-weight: 300; line-height: 1; }
.growth-card--narrato { border-top: 2px solid var(--acid); border-radius: 3px 14px 3px 14px; }
.growth-card--narrato::before { content: ''; position: absolute; top: 1.5rem; right: 1.5rem; width: 2.5rem; height: 2.5rem; border: 1px solid var(--line-strong); border-left-color: var(--acid); border-radius: 50%; opacity: .8; }
.growth-card--narrato:hover .growth-card-symbol { transform: rotate(90deg); }
.growth-card--void { border-style: dashed; border-radius: 12px 3px 12px 3px; }
.growth-card--void:hover, .growth-card--void:focus-visible { border-color: var(--violet); background: rgb(var(--violet-rgb) / 6%); }
.growth-card--signal { border-left: 3px solid var(--acid); }
.growth-card--signal:hover .growth-card-symbol { animation: signal-flare 1s steps(2, end) 2; }
.growth-card--unknown { border-style: dotted; border-color: var(--violet); border-radius: 50% 12px 12px 12px; }
.growth-card--unknown h3 { font-family: var(--serif); font-style: italic; }
.growth-card--unknown:hover { border-radius: 12px 50% 12px 12px; }
.growth-card--unknown.is-observed { border-color: var(--violet); background: rgb(var(--violet-rgb) / 14%); animation: unknown-card-joke .8s steps(2, end); }
.growth-card--unknown.is-observed .growth-card-symbol { color: var(--violet); animation: unknown-observed .8s steps(2, end); }
.growth-card-top, .growth-card-bottom { display: flex; align-items: center; justify-content: space-between; gap: 1rem; color: var(--paper-dim); font-size: 9px; letter-spacing: .16em; }
.growth-card-index { color: var(--paper-dim); }
.growth-card-signal { color: var(--acid); }
.growth-card h3 { margin: auto 0 .75rem; font-size: clamp(2rem, 4vw, 3.25rem); font-weight: 500; letter-spacing: -.07em; line-height: .95; }
.growth-card-meta { display: flex; flex-wrap: wrap; gap: .5rem 1rem; margin-bottom: 1rem; color: var(--paper-dim); font-size: 9px; letter-spacing: .14em; }
.growth-card-description { max-width: 18rem; margin: 0 0 2rem; color: var(--paper-dim); font-size: 13px; line-height: 1.7; }
.growth-card-bottom { margin-top: auto; padding-top: 1rem; border-top: 1px solid var(--line); }
.growth-card-status { color: var(--acid); }
.growth-card--unknown .growth-card-status { color: var(--violet); }
.growth-card-action { color: var(--paper); }

.signal-console { width: min(100%, 58rem); margin-left: auto; padding: clamp(1.25rem, 3vw, 2rem) 0; border-top: 1px solid var(--line-strong); border-bottom: 1px solid var(--line-strong); }
.signal-console-top, .signal-console-bottom { display: flex; flex-wrap: wrap; align-items: baseline; justify-content: space-between; gap: 1rem 2rem; color: var(--paper-dim); font-size: 10px; letter-spacing: .16em; }
.signal-console-top strong { color: var(--acid); font-size: clamp(1.5rem, 4vw, 2.75rem); font-weight: 500; letter-spacing: -.06em; }
.signal-console-top output { color: var(--paper); font: 500 clamp(1.5rem, 4vw, 2.75rem) var(--sans); letter-spacing: -.06em; }
.signal-console-label { color: var(--paper-dim); }
.signal-meter { height: 2px; margin: clamp(1.5rem, 4vw, 2.5rem) 0; background: var(--line); }
.signal-meter span { display: block; width: 73.1%; height: 100%; background: var(--acid); transition: width .8s cubic-bezier(.2,.8,.2,1); }
.signal-nudge { display: inline-flex; align-items: center; gap: 10px; padding: 0; border: 0; background: transparent; color: var(--paper); font: 800 10px var(--sans); letter-spacing: .16em; cursor: pointer; }
.signal-nudge:hover { color: var(--acid); }
.signal-event { margin: 1.25rem 0 0; color: var(--acid); font-size: 12px; line-height: 1.6; }

.now-section { min-height: clamp(28rem, 48vw, 36rem); padding-block: clamp(5rem, 12vw, 9.375rem) clamp(6rem, 13vw, 10.625rem); border-top: 1px solid var(--line); }
.now-title { flex: 1.7 1 18rem; min-width: 0; }
.now-title h2 { margin: 0; font-size: clamp(45px, 7vw, 96px); font-weight: 500; letter-spacing: -.075em; line-height: .92; }
.now-copy { flex: 1 1 13rem; min-width: 0; padding-top: 13px; color: var(--paper-dim); font-size: clamp(.875rem, 1vw, .95rem); line-height: 1.75; }
.now-copy p { max-width: 19rem; margin-bottom: 2.5rem; }

@container garden (max-width: 64rem) {
  .growth-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@container garden (max-width: 36rem) {
  .growth-grid { grid-template-columns: 1fr; }
}

.text-link { gap: 13px; color: var(--paper-dim); }
.back-arrow { display: grid; place-items: center; width: 26px; height: 26px; border: 1px solid var(--line-strong); border-radius: 50%; color: var(--acid); font-size: 14px; transition: background .25s ease, color .25s ease, transform .25s ease; }

.footer { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: clamp(.75rem, 2vw, 1.25rem); padding-block: clamp(1.25rem, 3vw, 1.875rem); border-top: 1px solid var(--line); color: rgb(var(--paper-dim-rgb) / 55%); font-size: clamp(8px, .65vw, 9px); letter-spacing: .14em; }
.coordinate-trigger { position: relative; padding: 0; border: 0; background: transparent; color: inherit; font: inherit; letter-spacing: inherit; cursor: pointer; white-space: nowrap; }
.coordinate-trigger:hover { color: var(--paper); }
.coordinate-trigger:focus-visible { outline: 2px solid var(--acid); outline-offset: 5px; }
.footer-whisper { position: absolute; top: 50%; left: 0; z-index: 1; padding: .35rem .55rem; background: var(--ink); color: var(--acid); transform: translateY(-50%); white-space: nowrap; }
html[lang="zh-CN"] .topbar,
html[lang="zh-CN"] .control-button,
html[lang="zh-CN"] .eyebrow,
html[lang="zh-CN"] .section-tag { letter-spacing: .08em; }
html[lang="zh-CN"] .footer-whisper,
html[lang="zh-CN"] .footer { letter-spacing: .06em; }
html[lang="zh-CN"] .hero-copy,
html[lang="zh-CN"] .root-copy,
html[lang="zh-CN"] .garden-intro,
html[lang="zh-CN"] .signal-heading > p,
html[lang="zh-CN"] .now-copy { text-wrap: pretty; }

@keyframes orbit-pulse {
  0% { opacity: .45; }
  50% { opacity: 1; filter: drop-shadow(0 0 12px rgb(var(--acid-rgb) / 48%)); }
  100% { opacity: .65; }
}

@keyframes core-pulse {
  0%, 100% { transform: translate(-50%, -50%) scale(1); }
  50% { transform: translate(-50%, -50%) scale(1.9); }
}

@keyframes signal-flare {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: .2; transform: scale(1.25); }
}

@keyframes unknown-observed {
  0%, 100% { transform: translateX(0); }
  25% { transform: translateX(-3px); }
  75% { transform: translateX(3px); }
}

@keyframes unknown-card-joke {
  0%, 100% { transform: translateY(-4px) rotate(0); }
  25% { transform: translateY(-4px) rotate(-1.5deg) translateX(-3px); }
  75% { transform: translateY(-4px) rotate(1.5deg) translateX(3px); }
}

.route-body.is-relay .route-title .is-glitched { display: inline-block; color: var(--acid); text-shadow: 4px 0 var(--violet), -4px 0 rgb(var(--acid-rgb) / 42%); transform: skew(-3deg); }
.route-body.is-relay .route-panel { animation: relay-flicker 1.1s steps(2, end); }

@keyframes relay-flicker {
  0%, 100% { opacity: 1; }
  18% { opacity: .42; }
  31% { opacity: .92; }
  63% { opacity: .6; }
}

.reveal { transition: opacity .9s cubic-bezier(.2,.8,.2,1), transform .9s cubic-bezier(.2,.8,.2,1); }
.js .reveal { opacity: 0; transform: translateY(22px); }
.js .reveal.visible { opacity: 1; transform: translateY(0); }
.js .reveal-delay { transition-delay: .14s; }
.js .reveal-delay-more { transition-delay: .26s; }

@container root (max-width: 42rem) {
  .root-orbit { position: relative; right: auto; bottom: auto; margin: clamp(2.5rem, 8vw, 4.5rem) 0 0 auto; opacity: .72; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
}