@import url('https://fonts.googleapis.com/css2?family=DM+Mono:wght@400;500&family=Manrope:wght@400;500;600;700;800&family=Noto+Sans+SC:wght@400;500;600;700;800&display=swap');

:root {
  --ink: #080b10;
  --ink-2: #0d1219;
  --surface: #111821;
  --surface-2: #151e29;
  --line: rgba(230, 238, 248, .12);
  --line-strong: rgba(230, 238, 248, .22);
  --paper: #f2f5f7;
  --muted: #97a4b5;
  --acid: #c9fa55;
  --blue: #5d8dff;
  --aqua: #54e6c1;
  --coral: #ff846b;
  --sans: "Manrope", "Noto Sans SC", system-ui, sans-serif;
  --mono: "DM Mono", ui-monospace, SFMono-Regular, Menlo, monospace;
  --radius: 18px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 92px; background: var(--ink); }
body {
  margin: 0;
  min-width: 320px;
  color: var(--paper);
  background:
    radial-gradient(circle at 85% 8%, rgba(93, 141, 255, .12), transparent 31rem),
    var(--ink);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.65;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

[data-lang="zh"] body { font-family: "Noto Sans SC", "Manrope", system-ui, sans-serif; }
a { color: inherit; text-decoration: none; }
button, input { font: inherit; }
button { color: inherit; }
img, svg { display: block; max-width: 100%; }
::selection { color: var(--ink); background: var(--acid); }

.shell { width: min(1180px, calc(100% - 48px)); 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; top: -100px; left: 16px; z-index: 1000; padding: 10px 16px; background: var(--acid); color: var(--ink); border-radius: 8px; font-weight: 800; }
.skip-link:focus { top: 16px; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(8, 11, 16, .82);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(18px);
}
.nav-shell { height: 74px; display: grid; grid-template-columns: 1fr auto 1fr; align-items: center; }
.brand { display: flex; align-items: center; gap: 11px; width: fit-content; font-weight: 800; letter-spacing: -.03em; }
.brand img { width: 32px; height: 32px; }
.brand-muted { color: var(--muted); font-weight: 500; }
.desktop-nav { display: flex; align-items: center; gap: 30px; color: var(--muted); font-size: .9rem; font-weight: 600; }
.desktop-nav a, .github-link { transition: color .2s ease; }
.desktop-nav a:hover, .desktop-nav a:focus-visible, .github-link:hover { color: var(--paper); }
.nav-actions { display: flex; justify-content: flex-end; align-items: center; gap: 18px; }
.github-link { display: flex; align-items: center; gap: 7px; color: var(--muted); font: 500 .78rem var(--mono); }
.github-link svg { width: 17px; fill: currentColor; }
.language-toggle { min-width: 78px; height: 38px; padding: 0 12px; display: flex; align-items: center; justify-content: center; gap: 10px; border: 1px solid var(--line-strong); border-radius: 999px; background: var(--ink-2); cursor: pointer; font: 500 .75rem var(--mono); }
.language-toggle:hover { border-color: var(--acid); }
.language-current { color: var(--acid); }
.language-divider { width: 1px; height: 13px; background: var(--line-strong); }

.hero { min-height: calc(100svh - 74px); padding-block: 70px 64px; display: grid; grid-template-columns: 1.05fr .95fr; align-items: center; gap: 72px; }
.hero-copy { padding-block: 24px; }
.eyebrow, .case-kicker, .section-index, .demo-label { font: 500 .75rem/1.4 var(--mono); letter-spacing: .08em; text-transform: uppercase; }
.eyebrow { display: flex; align-items: center; gap: 10px; color: var(--muted); margin-bottom: 26px; }
.eyebrow-dot { width: 7px; height: 7px; border-radius: 50%; background: var(--acid); box-shadow: 0 0 0 6px rgba(201, 250, 85, .1); }
.hero h1 { margin: 0; max-width: 790px; font-size: clamp(3rem, 6.7vw, 6.6rem); line-height: 1.01; letter-spacing: -.07em; font-weight: 700; }
[data-lang="zh"] .hero h1 { letter-spacing: -.06em; font-weight: 700; }
[data-lang="en"] .hero h1 { font-size: clamp(2.7rem, 5.3vw, 5.35rem); line-height: 1.05; letter-spacing: -.055em; }
.title-accent { color: var(--acid); }
.hero-lead { margin: 32px 0 0; max-width: 690px; color: #b4bfcc; font-size: clamp(1rem, 1.4vw, 1.22rem); line-height: 1.85; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 38px; }
.button { min-height: 48px; padding: 0 20px; border-radius: 10px; display: inline-flex; align-items: center; justify-content: center; gap: 28px; font-weight: 700; font-size: .9rem; transition: transform .2s ease, background .2s ease, border-color .2s ease; }
.button:hover { transform: translateY(-2px); }
.button-primary { color: var(--ink); background: var(--acid); }
.button-primary:hover { background: #ddff8f; }
.button-quiet { color: var(--paper); border: 1px solid var(--line-strong); background: rgba(255,255,255,.02); }
.button-quiet:hover { border-color: rgba(255,255,255,.42); }
.hero-proof { margin-top: 58px; padding-top: 22px; border-top: 1px solid var(--line); display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.hero-proof div { display: flex; flex-direction: column; }
.hero-proof strong { font: 500 1.1rem var(--mono); }
.hero-proof span { color: var(--muted); font-size: .78rem; }

.hero-system { min-width: 0; }
.system-map { position: relative; aspect-ratio: 1; overflow: hidden; border: 1px solid var(--line); border-radius: 50%; background: radial-gradient(circle, rgba(93, 141, 255, .1), rgba(13, 18, 25, .25) 45%, transparent 70%); }
.map-grid { position: absolute; inset: 0; opacity: .22; background-image: linear-gradient(var(--line) 1px, transparent 1px), linear-gradient(90deg, var(--line) 1px, transparent 1px); background-size: 34px 34px; mask-image: radial-gradient(circle, black, transparent 72%); }
.map-lines { position: absolute; inset: 6%; width: 88%; height: 88%; fill: none; stroke: rgba(230,238,248,.22); stroke-width: 1; stroke-dasharray: 4 6; }
.map-lines path { stroke: rgba(201,250,85,.45); stroke-dasharray: none; }
.map-core { position: absolute; left: 50%; top: 50%; transform: translate(-50%,-50%); width: 128px; aspect-ratio: 1; display: flex; flex-direction: column; align-items: center; justify-content: center; border: 1px solid rgba(201,250,85,.4); border-radius: 50%; background: rgba(8,11,16,.92); box-shadow: 0 0 60px rgba(201,250,85,.12); }
.map-core img { width: 34px; margin-bottom: 9px; }
.map-core span { font: 500 .76rem var(--mono); letter-spacing: .08em; }
.map-core small { color: var(--muted); font: 400 .75rem var(--mono); letter-spacing: .04em; transform: scale(.78); white-space: nowrap; }
.map-node { position: absolute; min-width: 112px; padding: 13px 15px; display: grid; grid-template-columns: auto 1fr; column-gap: 9px; border: 1px solid var(--line-strong); border-radius: 12px; background: rgba(13,18,25,.94); box-shadow: 0 12px 32px rgba(0,0,0,.25); transition: transform .25s ease, border-color .25s ease; }
.map-node:hover { transform: translateY(-4px); border-color: var(--acid); }
.map-node > span { grid-row: 1 / 3; color: var(--muted); font: .75rem var(--mono); }
.map-node strong { font-size: .92rem; line-height: 1.2; }
.map-node small { color: var(--muted); font-size: .75rem; }
.node-pigo { left: 7%; top: 17%; }
.node-ai2dot { right: 4%; top: 22%; }
.node-ana { right: 10%; bottom: 15%; }
.map-status { position: absolute; left: 50%; bottom: 8%; transform: translateX(-50%); white-space: nowrap; display: flex; align-items: center; gap: 8px; color: var(--muted); font: .75rem var(--mono); }
.map-status > span:first-child, .live-state i { width: 6px; height: 6px; border-radius: 50%; background: var(--aqua); box-shadow: 0 0 14px var(--aqua); }

.thesis-band { border-block: 1px solid var(--line); background: #0b0f15; }
.thesis-grid { min-height: 220px; padding-block: 54px; display: grid; grid-template-columns: .8fr 2.2fr; align-items: start; gap: 48px; }
.section-index { margin: 0; color: var(--acid); }
.thesis-copy { margin: 0; max-width: 860px; font-size: clamp(1.2rem, 2vw, 2.1rem); line-height: 1.58; letter-spacing: -.02em; font-weight: 550; text-wrap: pretty; }
[data-lang="zh"] .thesis-copy { max-width: 31em; }
[data-lang="en"] .thesis-copy { max-width: 46ch; line-height: 1.48; }

.systems, .compare { padding-block: 128px; }
.section-heading { margin-bottom: 64px; display: grid; grid-template-columns: 1.4fr .6fr; gap: 64px; align-items: end; }
.section-heading h2 { margin: 14px 0 0; max-width: 770px; font-size: clamp(2.2rem, 4.6vw, 4.5rem); line-height: 1.12; letter-spacing: -.055em; font-weight: 650; }
.section-heading > p { margin: 0 0 8px; color: var(--muted); line-height: 1.8; }

.system-case { scroll-margin-top: 100px; min-height: 670px; margin-top: 36px; padding: clamp(28px, 4.3vw, 58px); display: grid; grid-template-columns: .78fr 1.22fr; gap: clamp(38px, 6vw, 86px); align-items: center; border: 1px solid var(--line); border-radius: 26px; background: var(--ink-2); overflow: hidden; position: relative; }
.system-case::before { content: ""; position: absolute; width: 340px; height: 340px; border-radius: 50%; filter: blur(100px); opacity: .11; pointer-events: none; }
.case-pigo::before { right: -80px; top: -80px; background: var(--acid); }
.case-ai2dot::before { left: -60px; bottom: -80px; background: var(--blue); }
.case-ana::before { right: -50px; bottom: -100px; background: var(--aqua); }
.case-ai2dot .case-copy { order: 2; }
.case-ai2dot .product-demo { order: 1; }
.case-copy, .product-demo { position: relative; z-index: 1; min-width: 0; }
.case-kicker { display: flex; gap: 14px; color: var(--muted); }
.case-kicker span:first-child { color: var(--acid); }
.case-ai2dot .case-kicker span:first-child { color: #85a9ff; }
.case-ana .case-kicker span:first-child { color: var(--aqua); }
.case-copy h3 { margin: 26px 0 8px; font-size: clamp(3.4rem, 6vw, 6.5rem); line-height: 1; letter-spacing: -.07em; }
.case-tagline { margin: 0; color: var(--paper); font-size: clamp(1.15rem, 1.8vw, 1.45rem); line-height: 1.45; font-weight: 650; letter-spacing: -.02em; }
.case-description { margin: 20px 0 0; color: var(--muted); line-height: 1.8; }
.feature-list, .compact-facts { margin: 32px 0 0; padding: 0; list-style: none; border-top: 1px solid var(--line); }
.feature-list li { padding: 14px 0; display: grid; grid-template-columns: 30px 1fr; border-bottom: 1px solid var(--line); }
.feature-list li > span { grid-row: 1 / 3; color: var(--muted); font: .75rem var(--mono); }
.feature-list strong, .compact-facts strong { font-size: .88rem; }
.feature-list small { color: var(--muted); font-size: .74rem; }
.compact-facts li { padding: 13px 0; display: flex; flex-direction: column; border-bottom: 1px solid var(--line); }
.compact-facts span { color: var(--muted); font-size: .76rem; }
.tech-row { margin-top: 28px; display: flex; flex-wrap: wrap; gap: 8px; }
.tech-row span { padding: 7px 10px; border: 1px solid var(--line); border-radius: 6px; color: #aab8cb; font: .75rem var(--mono); }
.case-actions { margin-top: 32px; display: flex; flex-wrap: wrap; gap: 10px; align-items: center; }
.text-link, .copy-button { min-height: 42px; display: inline-flex; align-items: center; border: 0; cursor: pointer; font-size: .78rem; font-weight: 700; }
.text-link { padding: 0 15px; color: var(--ink); background: var(--paper); border-radius: 8px; }
.copy-button { padding: 0 4px; color: var(--muted); background: transparent; }
.copy-button:hover { color: var(--paper); }

.product-demo { border: 1px solid rgba(230,238,248,.16); border-radius: var(--radius); background: #0a0f15; box-shadow: 0 40px 80px rgba(0,0,0,.3); overflow: hidden; }
.demo-bar { height: 48px; padding: 0 15px; display: grid; grid-template-columns: 1fr auto 1fr; align-items: center; border-bottom: 1px solid var(--line); color: #7d8a99; font: .75rem var(--mono); text-transform: uppercase; letter-spacing: .04em; }
.demo-lights { display: flex; gap: 5px; }
.demo-lights i { width: 7px; height: 7px; border-radius: 50%; background: #2a333e; }
.demo-lights i:first-child { background: var(--coral); }
.live-state { justify-self: end; display: flex; align-items: center; gap: 7px; color: var(--aqua); }
.secure-state { justify-self: end; color: var(--aqua); }
.pipeline { padding: 24px; display: grid; grid-template-columns: repeat(6, 1fr); gap: 7px; border-bottom: 1px solid var(--line); }
.pipeline-node { position: relative; min-width: 0; padding: 12px 6px; border: 1px solid var(--line); border-radius: 8px; background: #0e151d; text-align: left; cursor: pointer; transition: border-color .2s, background .2s; }
.pipeline-node:not(:last-child)::after { content: ""; position: absolute; top: 50%; right: -8px; width: 8px; border-top: 1px solid #475261; }
.pipeline-node span { display: block; color: #607082; font: .75rem var(--mono); }
.pipeline-node strong { display: block; overflow: hidden; color: #a6b2c0; font: 500 .75rem var(--mono); text-overflow: ellipsis; }
.pipeline-node:hover, .pipeline-node.active { border-color: var(--acid); background: rgba(201,250,85,.08); }
.pipeline-node.active strong { color: var(--acid); }
.stage-inspector { min-height: 165px; padding: 26px; }
.stage-meta { display: flex; justify-content: space-between; color: #657384; font: .75rem var(--mono); }
.stage-meta span:first-child { color: var(--acid); }
.stage-inspector h4 { margin: 14px 0 7px; font-size: 1.05rem; }
.stage-inspector p { margin: 0; color: #a5b1bf; font-size: .78rem; }
.stage-inspector small { display: block; margin-top: 13px; color: #69788a; font: .75rem/1.55 var(--mono); }
.demo-actions { padding: 0 26px 14px; display: flex; gap: 8px; }
.demo-button, .demo-reset { min-height: 40px; padding: 0 12px; border-radius: 7px; cursor: pointer; font: .75rem var(--mono); }
.demo-button { border: 0; color: var(--ink); background: var(--acid); font-weight: 600; }
.demo-reset { border: 1px solid var(--line); color: var(--muted); background: transparent; }
.terminal { height: 124px; margin: 0; padding: 16px 22px; overflow: auto; border-top: 1px solid var(--line); background: #070a0e; color: #8190a0; font: .75rem/1.7 var(--mono); white-space: pre-wrap; }

.search-heading { padding: 42px 36px 18px; }
.demo-label { color: #85a9ff; }
.search-heading h4 { max-width: 500px; margin: 8px 0 0; font-size: clamp(1.35rem, 2vw, 1.8rem); line-height: 1.3; letter-spacing: -.035em; }
.search-box { margin: 0 36px 18px; padding: 7px; display: flex; gap: 8px; border: 1px solid rgba(93,141,255,.35); border-radius: 11px; background: #0e151f; }
.search-box input { min-width: 0; flex: 1; padding: 9px 10px; border: 0; outline: 0; color: var(--paper); background: transparent; font-size: .75rem; }
.search-box button { padding: 0 16px; border: 0; border-radius: 7px; color: white; background: var(--blue); cursor: pointer; font-size: .72rem; font-weight: 700; }
.search-results { min-height: 248px; padding: 0 36px 36px; }
.result-card { padding: 20px; border: 1px solid var(--line); border-radius: 12px; background: #0d141d; }
.result-card > div:first-child { display: flex; justify-content: space-between; color: #738296; font: .75rem var(--mono); }
.result-card > div:first-child strong { color: #85a9ff; }
.result-card h5 { margin: 15px 0 7px; font: 500 .76rem var(--mono); }
.result-card p { min-height: 48px; margin: 0; color: #9cabbc; font-size: .75rem; line-height: 1.65; }
.score-line { margin-top: 20px; display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.score-line span { position: relative; padding-top: 9px; border-top: 2px solid #1f2935; color: #6f7d8e; font: .75rem var(--mono); }
.score-line span::before { content: ""; position: absolute; left: 0; top: -2px; width: var(--score); border-top: 2px solid var(--blue); }

.return-head { padding: 34px 32px 18px; display: flex; justify-content: space-between; gap: 20px; }
.return-head > div:first-child { display: flex; flex-direction: column; }
.return-head span { color: var(--aqua); font: .75rem var(--mono); text-transform: uppercase; letter-spacing: .06em; }
.return-head strong { margin-top: 7px; font-size: 1.3rem; }
.net-return { text-align: right; }
.net-return strong { display: block; color: var(--aqua); font: 500 1.65rem var(--mono); }
.return-chart { position: relative; height: 205px; padding: 0 30px; }
.return-chart svg { width: 100%; height: 165px; overflow: visible; }
.return-chart path { fill: none; }
.chart-grid { stroke: #1e2933; stroke-width: 1; }
.chart-gross { stroke: rgba(201,250,85,.35); stroke-width: 2; stroke-dasharray: 5 5; }
.chart-net { stroke: var(--aqua); stroke-width: 3; }
.chart-legend { position: absolute; left: 33px; right: 33px; bottom: 13px; display: flex; gap: 20px; font: .75rem var(--mono); }
.chart-legend .gross { color: var(--acid); }
.chart-legend .net { color: var(--aqua); }
.range-grid { padding: 20px 32px; display: grid; grid-template-columns: 1fr 1fr; gap: 22px; border-top: 1px solid var(--line); }
.range-grid label > span { display: flex; justify-content: space-between; color: #8290a0; font-size: .75rem; }
.range-grid label strong { color: var(--paper); font: 500 .75rem var(--mono); }
input[type="range"] { width: 100%; height: 3px; margin-top: 14px; appearance: none; border-radius: 9px; background: #263240; accent-color: var(--aqua); }
input[type="range"]::-webkit-slider-thumb { width: 15px; height: 15px; appearance: none; border: 3px solid #0a0f15; border-radius: 50%; background: var(--aqua); box-shadow: 0 0 0 1px var(--aqua); }
.return-metrics { padding: 18px 32px 28px; display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.return-metrics > span { padding: 13px; display: flex; justify-content: space-between; align-items: center; border: 1px solid var(--line); border-radius: 9px; }
.return-metrics small { color: #718093; font-size: .75rem; }
.return-metrics strong { font: 500 .75rem var(--mono); }
.warning { margin: 0 32px 28px; padding: 10px; border: 1px solid rgba(255,132,107,.25); border-radius: 7px; color: var(--coral); background: rgba(255,132,107,.06); font-size: .75rem; }

.principles { padding-block: 128px; color: #111820; background: var(--paper); }
.principles .section-index { color: #526270; }
.principles .section-heading > p { color: #586775; }
.principle-grid { display: grid; grid-template-columns: repeat(4, 1fr); border-top: 1px solid #cbd2d8; border-left: 1px solid #cbd2d8; }
.principle-grid article { min-height: 285px; padding: 28px; border-right: 1px solid #cbd2d8; border-bottom: 1px solid #cbd2d8; }
.principle-grid article > span { color: #677786; font: .75rem var(--mono); }
.principle-grid h3 { margin: 62px 0 12px; font-size: 1.25rem; letter-spacing: -.025em; }
.principle-grid p { margin: 0; color: #5b6874; font-size: .85rem; line-height: 1.75; }

.compare-row { min-width: 760px; display: grid; grid-template-columns: 1.05fr repeat(3, 1fr); border-bottom: 1px solid var(--line); }
.compare-row > * { padding: 22px 20px; border-right: 1px solid var(--line); font-size: .83rem; }
.compare-row > *:last-child { border-right: 0; }
.compare-row > span:first-child { color: var(--muted); font: .75rem var(--mono); }
.compare-head { color: var(--paper); border-top: 1px solid var(--line); background: #0e141c; }
.compare-head strong { font-size: 1rem; }
.compare-table { overflow-x: auto; border-inline: 1px solid var(--line); }

.closing { margin-bottom: 128px; padding: 78px clamp(28px, 6vw, 78px); border: 1px solid rgba(201,250,85,.28); border-radius: 24px; background: linear-gradient(115deg, rgba(201,250,85,.08), rgba(93,141,255,.05)); }
.closing h2 { max-width: 850px; margin: 18px 0 14px; font-size: clamp(2.2rem, 5vw, 5rem); line-height: 1.1; letter-spacing: -.055em; }
.closing > p:not(.section-index) { margin: 0 0 30px; color: var(--muted); }
.closing-actions { display: flex; flex-wrap: wrap; gap: 12px; }
.closing-actions .button-quiet { gap: 14px; }
.closing-actions .button-quiet span:last-child { color: var(--muted); font: .75rem var(--mono); }
.site-footer { border-top: 1px solid var(--line); color: var(--muted); }
.footer-grid { min-height: 140px; display: grid; grid-template-columns: 1fr 1fr auto; align-items: center; gap: 30px; font-size: .75rem; }
.footer-brand { display: flex; align-items: center; gap: 10px; color: var(--paper); }
.footer-meta { display: flex; flex-direction: column; align-items: flex-end; gap: 4px; }
.footer-meta a { color: var(--paper); font: .75rem var(--mono); transition: color .2s ease; }
.footer-meta a:hover { color: var(--acid); }
.toast { position: fixed; z-index: 100; left: 50%; bottom: 28px; transform: translate(-50%, 120px); opacity: 0; padding: 10px 14px; border: 1px solid var(--line-strong); border-radius: 8px; color: var(--paper); background: #121922; box-shadow: 0 14px 50px rgba(0,0,0,.45); font: .75rem var(--mono); transition: .3s ease; }
.toast.show { transform: translate(-50%, 0); opacity: 1; }

.reveal { opacity: 0; transform: translateY(18px); transition: opacity .7s ease, transform .7s ease; }
.reveal.in-view { opacity: 1; transform: none; }

@media (max-width: 980px) {
  .nav-shell { grid-template-columns: 1fr auto; }
  .desktop-nav { display: none; }
  .hero { min-height: auto; padding-block: 64px 84px; grid-template-columns: 1fr; gap: 56px; }
  .hero h1 { font-size: clamp(3.2rem, 10vw, 6.5rem); }
  .hero-system { width: min(620px, 100%); margin-inline: auto; }
  .system-case { grid-template-columns: 1fr; }
  .case-ai2dot .case-copy, .case-ai2dot .product-demo { order: initial; }
  .section-heading { grid-template-columns: 1fr; gap: 24px; }
  .principle-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 680px) {
  .shell { width: min(100% - 28px, 1180px); }
  .site-header { position: relative; }
  .nav-shell { height: 66px; }
  .brand { font-size: .9rem; }
  .brand img { width: 28px; height: 28px; }
  .github-link span { display: none; }
  .nav-actions { gap: 12px; }
  .hero { padding-block: 52px 64px; }
  .hero h1 { font-size: clamp(2.85rem, 14.5vw, 5.2rem); line-height: 1.02; }
  [data-lang="en"] .hero h1 { font-size: clamp(2.45rem, 11.8vw, 4.35rem); line-height: 1.08; }
  .hero-lead { line-height: 1.75; }
  .hero-actions { align-items: stretch; flex-direction: column; }
  .hero-actions .button { width: 100%; }
  .hero-proof { margin-top: 44px; }
  .hero-proof strong { font-size: .9rem; }
  .hero-proof span { font-size: .75rem; }
  .map-core { width: 96px; }
  .map-core img { width: 27px; }
  .map-node { min-width: 92px; padding: 9px; }
  .map-node strong { font-size: .78rem; }
  .node-pigo { left: 1%; }
  .node-ai2dot { right: 0; }
  .node-ana { right: 5%; bottom: 10%; }
  .map-status { bottom: 3%; font-size: .75rem; transform: translateX(-50%) scale(.75); }
  .thesis-grid { grid-template-columns: 1fr; gap: 24px; }
  .systems, .compare, .principles { padding-block: 86px; }
  .section-heading { margin-bottom: 42px; }
  .section-heading h2 { font-size: clamp(2.15rem, 10vw, 3.3rem); }
  .system-case { min-height: auto; padding: 28px 20px; border-radius: 18px; gap: 38px; }
  .case-copy h3 { font-size: 3.7rem; }
  .case-actions { align-items: flex-start; flex-direction: column; }
  .pipeline { padding: 16px 13px; grid-template-columns: repeat(3, 1fr); }
  .pipeline-node:not(:last-child)::after { display: none; }
  .stage-inspector { padding: 21px; }
  .demo-actions { padding-inline: 21px; }
  .search-heading { padding: 30px 22px 16px; }
  .search-box { margin-inline: 22px; }
  .search-results { padding: 0 22px 26px; }
  .search-box input { font-size: .75rem; }
  .return-head { padding: 28px 20px 14px; }
  .return-head strong { font-size: 1rem; }
  .net-return strong { font-size: 1.3rem; }
  .range-grid { padding-inline: 20px; grid-template-columns: 1fr; }
  .return-metrics { padding-inline: 20px; }
  .principle-grid { grid-template-columns: 1fr; }
  .principle-grid article { min-height: 220px; }
  .principle-grid h3 { margin-top: 38px; }
  .closing { margin-bottom: 86px; }
  .closing-actions { flex-direction: column; }
  .closing-actions .button { width: 100%; }
  .footer-grid { padding-block: 34px; grid-template-columns: 1fr; gap: 9px; }
  .footer-meta { align-items: flex-start; margin-top: 6px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
  .reveal { opacity: 1; transform: none; }
}