:root {
  --ink: #142c36;
  --ink-soft: #536870;
  --paper: #f7f7f3;
  --paper-alt: #eef2ef;
  --white: #ffffff;
  --navy: #102832;
  --navy-soft: #173640;
  --navy-line: #31515a;
  --teal: #08796c;
  --teal-dark: #05665b;
  --teal-pale: #e2f1ed;
  --blue: #315f8f;
  --violet: #695381;
  --orange: #986039;
  --line: #d5ded9;
  --line-strong: #b9c8c1;
  --shadow-small: 0 .35rem 1.25rem rgba(16, 40, 50, .08);
  --radius: .45rem;
  color: var(--ink);
  background: var(--paper);
  font-family: Inter, "Noto Sans SC", "PingFang SC", "Microsoft YaHei", ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-synthesis: none;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; overflow-x: hidden; background: var(--paper); color: var(--ink); font-size: 1rem; line-height: 1.6; }
body::selection { background: #bce2d8; color: var(--navy); }
a { color: inherit; }
img { display: block; max-width: 100%; height: auto; }
picture { display: block; }
figure, dl { margin: 0; }
button, code, pre { font: inherit; }
code, pre { font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; }
h1, h2 { text-wrap: balance; }
h1, h2, h3, p { overflow-wrap: break-word; }

.skip-link {
  position: fixed; top: .75rem; left: .75rem; z-index: 100;
  padding: .7rem .9rem; transform: translateY(-180%);
  border: 2px solid var(--teal); background: var(--white); color: var(--navy); font-weight: 800;
}
.skip-link:focus { transform: translateY(0); }
.shell { width: min(1260px, calc(100% - 3rem)); margin-inline: auto; }
.anchor-alias { position: absolute; top: -6rem; }

.site-header {
  position: sticky; top: 0; z-index: 40;
  border-bottom: 1px solid var(--line); background: var(--white);
}
.nav-wrap { display: flex; min-height: 4.25rem; align-items: center; gap: 1.4rem; }
.brand { display: inline-flex; flex: 0 0 auto; align-items: center; gap: .65rem; color: var(--navy); font-weight: 850; letter-spacing: -.02em; text-decoration: none; }
.brand-mark {
  display: flex; width: 1.8rem; height: 1.8rem; align-items: flex-end; justify-content: center; gap: .13rem;
  padding-bottom: .4rem; border: 1px solid var(--navy); border-radius: .18rem; background: var(--white);
}
.brand-mark i { display: block; width: .16rem; background: var(--teal); }
.brand-mark i:nth-child(1) { height: .33rem; }
.brand-mark i:nth-child(2) { height: .63rem; }
.brand-mark i:nth-child(3) { height: .92rem; }
nav { display: flex; flex: 1; align-items: center; justify-content: flex-end; gap: clamp(.75rem, 2vw, 1.5rem); }
nav a { color: #48616a; font-size: .84rem; font-weight: 700; text-decoration: none; white-space: nowrap; }
nav a:hover, nav a:focus-visible, nav a[aria-current="page"] { color: var(--teal-dark); }
.language-link {
  display: inline-grid; min-width: 2.7rem; min-height: 2rem; place-items: center;
  border: 1px solid var(--line-strong); border-radius: .2rem; color: var(--teal-dark);
  font-size: .72rem; font-weight: 850; text-decoration: none;
}
.language-link:hover { border-color: var(--teal); background: var(--teal-pale); }
.button:focus-visible, .copy-button:focus-visible, a:focus-visible {
  outline: 3px solid #0b776b; outline-offset: 3px;
}

.hero { padding-block: 5.5rem; padding-block: clamp(4.5rem, 8vw, 7rem); border-bottom: 1px solid var(--line); background: var(--white); }
.hero-grid { display: grid; grid-template-columns: minmax(0, 1.12fr) minmax(27rem, .88fr); align-items: center; gap: clamp(2rem, 4vw, 3.5rem); }
.hero-copy, .hero-evidence, .sample-content-grid > *, .format-layout > *, .quality-layout > *, .download-layout > * { min-width: 0; }
.eyebrow, .kicker {
  margin: 0 0 .9rem; color: var(--teal-dark); font-size: .72rem; font-weight: 850;
  letter-spacing: .12em; text-transform: uppercase;
}
h1 {
  max-width: none; margin: 0; color: var(--navy);
  font-size: 3.75rem; line-height: 1.05; letter-spacing: -.045em;
}
html[lang="en"] .hero h1 { font-size: 3.35rem; letter-spacing: -.035em; }
@supports (font-size: clamp(1rem, 2vw, 2rem)) {
  h1 { font-size: clamp(3.25rem, 4.5vw, 3.75rem); }
  html[lang="en"] .hero h1 { font-size: clamp(3rem, 4vw, 3.35rem); }
}
.lede { max-width: 43rem; margin: 1.35rem 0 0; color: var(--ink-soft); font-size: clamp(1rem, 1.4vw, 1.12rem); line-height: 1.75; }
.model-boundary {
  display: grid; grid-template-columns: 5.4rem 1fr; gap: 1rem;
  margin-top: 1.35rem; padding: .9rem 0 .9rem 1rem; border-left: 3px solid var(--teal);
}
.model-boundary strong { color: var(--navy); font-size: .76rem; }
.model-boundary span { color: var(--ink-soft); font-size: .78rem; line-height: 1.65; }
.actions { display: flex; flex-wrap: wrap; gap: .7rem; margin-top: 1.65rem; }
.button {
  display: inline-flex; min-height: 2.9rem; align-items: center; justify-content: center; gap: .5rem;
  padding: .67rem .92rem; border: 1px solid transparent; border-radius: .25rem;
  font-size: .86rem; font-weight: 800; text-decoration: none;
  transition: background-color .15s ease, border-color .15s ease, color .15s ease;
}
.primary { border-color: var(--navy); background: var(--navy); color: var(--white); }
.primary:hover { background: #1b3a45; }
.secondary { border-color: var(--line-strong); background: var(--white); color: var(--navy); }
.secondary:hover { border-color: var(--teal); color: var(--teal-dark); }
.hero-text-links { display: flex; flex-wrap: wrap; gap: 1.25rem; margin-top: 1.05rem; }
.hero-text-links a, .text-link, .inline-links a, .contract-links a {
  color: var(--teal-dark); font-size: .78rem; font-weight: 800; text-decoration-thickness: .08em; text-underline-offset: .2em;
}
.release-line { display: flex; flex-wrap: wrap; align-items: center; gap: .55rem; margin: 1.2rem 0 0; color: var(--ink-soft); font-size: .72rem; }
.release-line code { padding: .15rem .3rem; background: var(--paper-alt); color: #36525a; }
.verified-label { color: var(--teal-dark); font-weight: 800; }
.verified-label::before { content: "✓"; margin-right: .28rem; }

.hero-evidence { display: block; }
.research-figure { border: 1px solid var(--line-strong); background: var(--white); }
.research-figure img { width: 100%; }
.research-figure figcaption { display: grid; gap: .18rem; padding: .7rem .8rem; border-top: 1px solid var(--line); }
.research-figure figcaption strong { font-size: .72rem; }
.research-figure figcaption span { color: var(--ink-soft); font-size: .65rem; line-height: 1.5; }
.hero-spectrum { display: flex; width: min(100%, 29rem); margin: .75rem 0 0 auto; }
.hero-spectrum > img { flex: 0 0 8.5rem; width: 8.5rem; object-fit: cover; }
.hero-spectrum figcaption { flex: 1; align-content: center; padding: .65rem .75rem; border-top: 0; border-left: 1px solid var(--line); }
.hero-spectrum figcaption strong { font-size: .68rem; }
.hero-spectrum figcaption span { font-size: .61rem; }

.dataset-overview { padding-block: 2.3rem; border-bottom: 1px solid var(--line); background: var(--paper); scroll-margin-top: 5rem; }
.overview-heading { display: grid; gap: .1rem; margin-bottom: .8rem; }
.overview-heading .kicker { margin: 0; }
.overview-heading h2 { margin: 0; font-size: 1.25rem; letter-spacing: -.02em; }
.metric-grid { display: grid; grid-template-columns: 1.05fr .7fr .85fr .9fr 1.25fr; border-block: 1px solid var(--line-strong); }
.metric-grid > div { padding: 1.15rem 1.2rem; border-right: 1px solid var(--line); }
.metric-grid > div:last-child { border-right: 0; }
.metric-grid dt { color: var(--navy); font-size: clamp(1.25rem, 2.1vw, 1.75rem); font-weight: 820; letter-spacing: -.035em; font-variant-numeric: tabular-nums; }
.metric-grid dd { margin: .15rem 0 0; color: var(--ink-soft); font-size: .72rem; }

.section { position: relative; padding-block: 5.5rem; padding-block: clamp(4.5rem, 8vw, 7rem); scroll-margin-top: 4.8rem; }
.section-alt { border-block: 1px solid var(--line); background: var(--paper-alt); }
.section-heading { max-width: 51rem; margin-bottom: 2.2rem; }
.section-heading h2, .institution-section h2, .subpage-hero h1 {
  margin: 0; color: var(--navy); font-size: 3.6rem; line-height: 1.08; letter-spacing: -.04em;
}
@supports (font-size: clamp(1rem, 2vw, 2rem)) {
  .section-heading h2, .institution-section h2, .subpage-hero h1 { font-size: clamp(2.35rem, 4.4vw, 3.6rem); }
}
.section-heading > p:last-child { margin: 1rem 0 0; color: var(--ink-soft); font-size: 1rem; line-height: 1.75; }
.section-heading code { padding: .12rem .25rem; background: var(--paper-alt); font-size: .86em; }

.sample-section { background: var(--white); }
.sample-content-grid { display: grid; grid-template-columns: minmax(0, 1.45fr) minmax(18rem, .72fr); gap: clamp(2rem, 5vw, 4.5rem); align-items: start; }
.preview-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1rem; }
.sample-preview { overflow: hidden; border: 1px solid var(--line-strong); background: var(--paper); }
.sample-preview a { display: block; background: var(--navy); }
.sample-preview img { width: 100%; aspect-ratio: 1; object-fit: cover; }
.sample-preview figcaption { display: grid; grid-template-columns: 1fr auto; gap: .15rem .8rem; padding: .75rem .8rem; border-top: 1px solid var(--line); }
.sample-preview figcaption code { grid-column: 1 / -1; color: var(--teal-dark); font-size: .63rem; }
.sample-preview figcaption strong { font-size: .8rem; }
.sample-preview figcaption span { color: var(--ink-soft); font-size: .66rem; text-align: right; }
.sample-contract { padding-left: clamp(1.5rem, 3vw, 2.4rem); border-left: 1px solid var(--line-strong); }
.sample-contract h3 { margin: 0; font-size: 1.65rem; letter-spacing: -.03em; }
.sample-contract > p:not(.kicker) { margin: .7rem 0 1.2rem; color: var(--ink-soft); font-size: .82rem; }
.sample-contract > p code { color: var(--teal-dark); font-size: .9em; }
.member-list { margin: 0; padding: 0; list-style: none; counter-reset: none; }
.member-list li { display: grid; grid-template-columns: 3rem 1fr; gap: .8rem; padding: 1rem 0; border-top: 1px solid var(--line); }
.member-list li:last-child { border-bottom: 1px solid var(--line); }
.file-extension { display: grid; width: 2.7rem; height: 2.1rem; place-items: center; border: 1px solid var(--line-strong); color: var(--navy); font-size: .62rem; font-weight: 900; }
.member-list li > div { display: grid; min-width: 0; }
.member-list strong { font-size: .8rem; }
.member-list code { margin-top: .15rem; overflow-wrap: anywhere; color: var(--teal-dark); font-size: .64rem; }
.member-list p { margin: .3rem 0 0; color: var(--ink-soft); font-size: .69rem; line-height: 1.55; }
.contract-links { display: flex; flex-wrap: wrap; gap: 1rem; margin-top: 1.1rem; }

.label-decoder { display: flex; flex-wrap: wrap; align-items: center; gap: .75rem 1.2rem; margin-bottom: 1rem; padding: .8rem 0; border-block: 1px solid var(--line); color: var(--ink-soft); font-size: .72rem; }
.label-decoder > span:first-child { color: var(--navy); font-weight: 800; }
.label-decoder > code { padding: .28rem .42rem; background: var(--navy); color: #d6f0e9; font-size: .69rem; }
.label-decoder strong { color: var(--navy); }
.condition-table { border-top: 1px solid var(--line-strong); }
.condition-row {
  --card-accent: var(--teal);
  display: grid; grid-template-columns: minmax(12rem, 1.05fr) minmax(14rem, 1.35fr) minmax(15rem, 1fr) auto;
  align-items: center; gap: 1.3rem; padding: 1.25rem .2rem; border-bottom: 1px solid var(--line);
}
.level-card { --card-accent: var(--teal); }
.pitch30-card { --card-accent: var(--blue); }
.pitch45-card { --card-accent: var(--violet); }
.blade-card { --card-accent: var(--orange); }
.condition-name { display: flex; align-items: center; gap: .8rem; }
.condition-swatch { display: block; width: .35rem; height: 2.8rem; background: var(--card-accent); }
.condition-name h3 { margin: 0; font-size: 1rem; }
.condition-name code { color: var(--ink-soft); font-size: .64rem; }
.condition-row > p { margin: 0; color: var(--ink-soft); font-size: .76rem; line-height: 1.6; }
.condition-row dl { display: grid; grid-template-columns: repeat(3, 1fr); gap: .5rem; }
.condition-row dl div { min-width: 0; padding-left: .65rem; border-left: 1px solid var(--line); }
.condition-row dt { color: var(--ink-soft); font-size: .58rem; }
.condition-row dd { margin: .08rem 0 0; color: var(--navy); font-size: .75rem; font-weight: 800; }
.condition-count { display: grid; justify-items: end; min-width: 7rem; }
.condition-count strong { font-size: 1.35rem; letter-spacing: -.035em; font-variant-numeric: tabular-nums; }
.condition-count span { color: var(--ink-soft); font-size: .62rem; }
.condition-count b { color: var(--card-accent); }
.balance-panel { display: grid; grid-template-columns: auto 1fr; align-items: center; gap: 2rem; padding-top: 1.15rem; }
.balance-panel > div:first-child { display: grid; }
.balance-panel strong { font-size: .77rem; }
.balance-panel span { color: var(--ink-soft); font-size: .64rem; }
.stacked-bar { display: flex; height: .5rem; overflow: hidden; background: #d9e1dd; }
.stacked-bar i { display: block; height: 100%; }
.stacked-bar .level { width: 25.0044%; background: var(--teal); }
.stacked-bar .pitch30 { width: 24.9755%; background: var(--blue); }
.stacked-bar .pitch45 { width: 24.9378%; background: var(--violet); }
.stacked-bar .blade { width: 25.0822%; background: var(--orange); }

.format-section { background: var(--white); }
.format-layout { display: grid; grid-template-columns: minmax(0, 1.4fr) minmax(18rem, .6fr); gap: clamp(2rem, 5vw, 4.5rem); align-items: start; }
.table-wrap { max-width: 100%; overflow-x: auto; }
.data-table { width: 100%; border-collapse: collapse; border-block: 1px solid var(--line-strong); background: transparent; font-size: .75rem; }
.data-table th, .data-table td { padding: .85rem .75rem; border-bottom: 1px solid var(--line); text-align: left; vertical-align: top; }
.data-table tr:last-child td { border-bottom: 0; }
.data-table th { color: var(--navy); background: var(--paper); font-size: .66rem; letter-spacing: .025em; }
.data-table td { color: var(--ink-soft); }
.data-table td:nth-child(2) { color: var(--navy); font-weight: 750; font-variant-numeric: tabular-nums; white-space: nowrap; }
.data-table code { overflow-wrap: anywhere; color: var(--teal-dark); font-size: .68rem; }
.format-notes { padding-left: 1.5rem; border-left: 1px solid var(--line-strong); }
.format-notes h3 { margin: 0; font-size: 1rem; }
.format-notes ul { margin: .7rem 0 1.1rem; padding-left: 1.05rem; }
.format-notes li { margin-bottom: .55rem; color: var(--ink-soft); font-size: .76rem; line-height: 1.6; }
.inline-links { display: flex; flex-wrap: wrap; gap: 1rem; }

.method-steps { display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); margin: 0; padding: 0; border-block: 1px solid var(--line-strong); list-style: none; }
.method-steps li { min-width: 0; padding: 1.15rem; border-right: 1px solid var(--line); }
.method-steps li:last-child { border-right: 0; }
.method-steps span { color: var(--teal-dark); font-size: .63rem; font-weight: 800; }
.method-steps h3 { margin: 1rem 0 .45rem; font-size: .88rem; }
.method-steps p { margin: 0; color: var(--ink-soft); font-size: .7rem; line-height: 1.6; }
.method-details { display: grid; grid-template-columns: 1fr 1fr; gap: 1.8rem; margin-top: 1.5rem; }
.method-details > div { padding-left: 1rem; border-left: 2px solid var(--teal); }
.method-details h3 { margin: 0; font-size: .85rem; }
.method-details p { margin: .35rem 0 0; color: var(--ink-soft); font-size: .74rem; line-height: 1.65; }
.method-details code { padding: .1rem .22rem; background: var(--white); color: var(--teal-dark); font-size: .9em; }
.section-action { margin-top: 1.4rem; }

.quality-section { background: var(--white); }
.quality-layout { display: grid; grid-template-columns: minmax(16rem, .62fr) minmax(0, 1.38fr); gap: clamp(2rem, 6vw, 5rem); align-items: start; }
.quality-timeline { margin: 0; padding: 0; border-top: 1px solid var(--line-strong); list-style: none; }
.quality-timeline li { display: grid; grid-template-columns: 2rem 1fr; gap: .8rem; padding: .9rem 0; border-bottom: 1px solid var(--line); }
.quality-timeline > li > span { color: var(--teal-dark); font-size: .62rem; font-weight: 850; }
.quality-timeline h3 { margin: 0; font-size: .8rem; }
.quality-timeline p { margin: .2rem 0 0; color: var(--ink-soft); font-size: .69rem; }
.quality-timeline code { font-size: .9em; overflow-wrap: anywhere; }
.audit-table td:nth-child(2) { white-space: nowrap; }
.audit-table { table-layout: fixed; }
.audit-table th, .audit-table td { overflow-wrap: anywhere; }
.audit-table th:nth-child(1) { width: 28%; }
.audit-table th:nth-child(2) { width: 19%; }
.version-record { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); margin-top: 1.25rem; border-top: 1px solid var(--line-strong); }
.version-record > div { min-width: 0; padding: .8rem .6rem .8rem 0; border-bottom: 1px solid var(--line); }
.version-record dt { color: var(--ink-soft); font-size: .61rem; }
.version-record dd { margin: .15rem 0 0; font-size: .73rem; font-weight: 750; }
.version-record code { overflow-wrap: anywhere; color: var(--teal-dark); font-size: .65rem; }

.download-layout { display: grid; grid-template-columns: minmax(17rem, .72fr) minmax(0, 1.28fr); gap: clamp(2rem, 5vw, 4rem); }
.release-resources h3 { margin: 0 0 .7rem; font-size: 1rem; }
.release-resources ul { margin: 0; padding: 0; border-top: 1px solid var(--line-strong); list-style: none; }
.release-resources li { border-bottom: 1px solid var(--line); }
.release-resources a { display: grid; gap: .1rem; padding: .8rem 0; text-decoration: none; }
.release-resources a:hover strong { color: var(--teal-dark); }
.release-resources strong { font-size: .78rem; }
.release-resources span { overflow-wrap: anywhere; color: var(--ink-soft); font-size: .64rem; }
.code-stack { display: grid; gap: 1rem; min-width: 0; }
.code-card { min-width: 0; overflow: hidden; border: 1px solid var(--navy); background: var(--navy); color: #e3eeee; }
.code-title { display: flex; min-height: 2.7rem; align-items: center; justify-content: space-between; gap: 1rem; padding: .55rem .8rem; border-bottom: 1px solid var(--navy-line); color: #b2c6ca; font-size: .69rem; }
.copy-button { flex: 0 0 auto; padding: .3rem .55rem; border: 1px solid #54717a; border-radius: .18rem; background: transparent; color: #d4eee7; cursor: pointer; font-size: .63rem; font-weight: 800; }
.copy-button:hover { background: var(--navy-soft); }
.code-card pre { max-width: 100%; overflow-x: auto; margin: 0; padding: 1rem; }
.code-card code { font-size: .7rem; line-height: 1.65; }

.limits-section { background: var(--white); }
.limits-layout { display: grid; grid-template-columns: minmax(17rem, .65fr) minmax(0, 1.35fr); gap: clamp(2rem, 6vw, 5rem); align-items: start; }
.limits-layout .section-heading { margin: 0; }
.limits-list { margin: 0; padding: 0; border-top: 1px solid var(--line-strong); list-style: none; }
.limits-list li { display: grid; grid-template-columns: 9rem 1fr; gap: 1rem; padding: .85rem 0; border-bottom: 1px solid var(--line); }
.limits-list strong { font-size: .75rem; }
.limits-list span { color: var(--ink-soft); font-size: .74rem; line-height: 1.6; }

.institution-section { padding-block: clamp(3.5rem, 6vw, 5rem); border-block: 1px solid var(--line); background: var(--paper-alt); }
.institution-grid { display: grid; grid-template-columns: 1.1fr .9fr; gap: clamp(2rem, 7vw, 6rem); align-items: start; }
.institution-section h2 { font-size: clamp(1.7rem, 3vw, 2.5rem); }
.institution-section p:not(.kicker), .license-note p { color: var(--ink-soft); font-size: .76rem; line-height: 1.7; }
.license-note { padding-left: 1.5rem; border-left: 1px solid var(--line-strong); }
.license-note h3 { margin: 0 0 .55rem; font-size: .95rem; }
.license-note code { color: var(--teal-dark); }

footer { padding-block: 2.4rem; background: var(--white); }
.footer-wrap { display: flex; align-items: center; justify-content: space-between; gap: 2rem; }
.footer-brand { color: var(--navy); }
.footer-wrap p { margin: .35rem 0 0; color: var(--ink-soft); font-size: .72rem; }
.footer-links { display: flex; flex-wrap: wrap; justify-content: flex-end; gap: 1rem; }
.footer-links a { color: #415d66; font-size: .72rem; font-weight: 700; text-decoration: none; }
.footer-links a:hover { color: var(--teal-dark); }

/* Secondary pages */
.subpage-main { min-height: 70vh; }
.subpage-hero { padding-block: clamp(4.2rem, 8vw, 6.5rem); border-bottom: 1px solid var(--line); background: var(--white); }
.subpage-hero .shell { position: relative; }
.breadcrumbs { display: flex; flex-wrap: wrap; gap: .45rem; margin-bottom: 1.7rem; color: var(--ink-soft); font-size: .69rem; }
.breadcrumbs a { color: var(--teal-dark); text-decoration: none; }
.status-dot { display: inline-block; width: .42rem; height: .42rem; margin-right: .4rem; border-radius: 50%; background: var(--teal); }
.subpage-hero h1 { max-width: 17ch; }
.subpage-hero h1 span { color: var(--teal-dark); }
.subpage-hero .lede { max-width: 50rem; }
.page-meta { display: flex; flex-wrap: wrap; gap: .45rem 1rem; margin-top: 1.3rem; color: var(--ink-soft); }
.page-meta span { font-size: .66rem; }
.page-meta span:not(:first-child)::before { content: "·"; margin-right: 1rem; color: var(--line-strong); }
.content-section { padding-block: clamp(4rem, 7vw, 6.5rem); }
.intro-note { display: grid; grid-template-columns: auto 1fr; gap: .9rem; align-items: start; margin-bottom: 2rem; padding: 1rem 0; border-block: 1px solid var(--line); }
.intro-note b { display: grid; width: 1.6rem; height: 1.6rem; place-items: center; border: 1px solid var(--teal); color: var(--teal-dark); font-size: .72rem; }
.intro-note p { margin: 0; color: var(--ink-soft); font-size: .8rem; line-height: 1.7; }

.gallery-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1.3rem; }
.sample-card { overflow: hidden; border: 1px solid var(--line-strong); background: var(--white); }
.sample-card-head { display: flex; align-items: flex-start; justify-content: space-between; gap: 1rem; padding: 1.1rem 1.15rem; }
.sample-card-head h2 { margin: 0; font-size: 1.18rem; letter-spacing: -.02em; }
.sample-card-head h2 small { display: block; margin-top: .2rem; color: var(--ink-soft); font-size: .65rem; font-weight: 700; }
.sample-card-head code { padding: .2rem .35rem; background: var(--paper-alt); color: #4d666e; font-size: .63rem; white-space: nowrap; }
.spectrogram-frame { position: relative; margin-inline: 1.15rem; padding: .5rem .5rem 1.55rem 1.6rem; background: var(--navy); }
.spectrogram-frame a { display: block; overflow: hidden; }
.spectrogram-frame img { width: 100%; aspect-ratio: 1; object-fit: cover; }
.axis-x { position: absolute; right: .7rem; bottom: .32rem; color: #9eb3b8; font-size: .57rem; }
.axis-y { position: absolute; left: .28rem; top: 50%; color: #9eb3b8; font-size: .57rem; writing-mode: vertical-rl; transform: translateY(-50%) rotate(180deg); }
.plot-range { display: flex; justify-content: space-between; gap: 1rem; padding: .65rem 1.15rem 0; color: var(--ink-soft); font-size: .6rem; }
.sample-summary { padding: 1rem 1.15rem .25rem; color: var(--ink-soft); font-size: .76rem; line-height: 1.7; }
.parameter-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: .5rem; padding: .75rem 1.15rem 1.15rem; }
.parameter-grid div { padding: .55rem; border-top: 1px solid var(--line); }
.parameter-grid dt { color: var(--ink-soft); font-size: .56rem; }
.parameter-grid dd { margin: .12rem 0 0; font-size: .7rem; font-weight: 800; font-variant-numeric: tabular-nums; }
.sample-origin { display: flex; justify-content: space-between; gap: .7rem; padding: .75rem 1.15rem; border-top: 1px solid var(--line); color: var(--ink-soft); font-size: .61rem; }
.sample-origin code { color: var(--teal-dark); }
.shared-params { margin-top: 1.3rem; padding: 1.4rem; border-block: 1px solid var(--line-strong); background: var(--paper-alt); }
.shared-params h2 { margin: 0 0 1rem; font-size: 1.2rem; }
.shared-param-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: .8rem; }
.shared-param-grid div { padding-left: .65rem; border-left: 1px solid var(--line-strong); }
.shared-param-grid span { display: block; color: var(--ink-soft); font-size: .58rem; }
.shared-param-grid b { display: block; margin-top: .2rem; font-size: .72rem; }
.gallery-method-note { display: grid; grid-template-columns: 1fr auto; align-items: center; gap: 2rem; margin-top: 1rem; padding: 1.1rem 0; border-block: 1px solid var(--line); }
.gallery-method-note p { margin: 0; color: var(--ink-soft); font-size: .73rem; line-height: 1.65; }
.trajectory-evidence { margin-top: clamp(3.5rem, 7vw, 6rem); padding-top: clamp(3rem, 6vw, 5rem); scroll-margin-top: 5rem; border-top: 1px solid var(--line-strong); }
.trajectory-heading { display: grid; grid-template-columns: 1fr .9fr; align-items: end; gap: 2rem; margin-bottom: 1.5rem; }
.trajectory-heading h2 { max-width: 17ch; margin: 0; font-size: clamp(2rem, 4vw, 3.2rem); line-height: 1.08; letter-spacing: -.04em; }
.trajectory-heading > p { margin: 0; color: var(--ink-soft); font-size: .81rem; line-height: 1.75; }
.trajectory-heading code { padding: .12rem .26rem; background: var(--paper-alt); color: var(--teal-dark); font-size: .86em; }
.evidence-figure { overflow: hidden; margin: 1rem 0 0; border: 1px solid var(--line-strong); background: var(--white); }
.evidence-figure a { display: block; }
.evidence-figure img { width: 100%; }
.evidence-figure figcaption { display: grid; grid-template-columns: auto 1fr; gap: .25rem 1.2rem; align-items: center; padding: .9rem 1rem; border-top: 1px solid var(--line); }
.evidence-figure figcaption strong { font-size: .8rem; }
.evidence-figure figcaption span { color: var(--ink-soft); font-size: .69rem; }
.evidence-figure figcaption small { grid-column: 1 / -1; color: var(--ink-soft); font-size: .63rem; }
.trajectory-record-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: .75rem; margin-top: 1rem; }
.trajectory-record-grid article { display: grid; gap: .25rem; min-width: 0; padding: .85rem; border: 1px solid var(--line); background: var(--white); }
.trajectory-record-grid code { color: var(--teal-dark); font-size: .65rem; font-weight: 800; }
.trajectory-record-grid strong { font-size: .78rem; }
.trajectory-record-grid span { overflow-wrap: anywhere; color: var(--ink-soft); font-size: .65rem; line-height: 1.55; }
.scene-facts { display: grid; grid-template-columns: repeat(4, 1fr); gap: .8rem; margin-top: .75rem; padding: .85rem 0; border-block: 1px solid var(--line); }
.scene-facts span { min-width: 0; color: var(--ink-soft); font-size: .65rem; line-height: 1.5; }
.scene-facts b { display: block; margin-bottom: .12rem; color: var(--navy); font-size: .59rem; letter-spacing: .05em; text-transform: uppercase; }
.scene-facts code { overflow-wrap: anywhere; color: var(--teal-dark); font-size: .62rem; }

.docs-layout { display: grid; grid-template-columns: 15rem minmax(0, 1fr); align-items: start; gap: clamp(2rem, 6vw, 5rem); }
.docs-nav { position: sticky; top: 5.5rem; padding: .9rem; border: 1px solid var(--line); background: var(--white); }
.docs-nav strong { display: block; margin-bottom: .65rem; color: var(--ink-soft); font-size: .64rem; letter-spacing: .07em; text-transform: uppercase; }
.docs-nav a { display: block; padding: .42rem .5rem; color: #49636b; font-size: .73rem; font-weight: 700; text-decoration: none; }
.docs-nav a:hover { background: var(--teal-pale); color: var(--teal-dark); }
.docs-content { min-width: 0; }
.doc-section { padding-block: 1.3rem 3.3rem; scroll-margin-top: 5rem; border-bottom: 1px solid var(--line); }
.doc-section:first-child { padding-top: 0; }
.doc-section:last-child { border-bottom: 0; }
.doc-section .kicker { margin-bottom: .65rem; }
.doc-section h2 { margin: 0 0 .9rem; font-size: clamp(1.7rem, 3.7vw, 2.55rem); line-height: 1.14; letter-spacing: -.035em; }
.doc-section h3 { margin: 1.7rem 0 .6rem; font-size: 1rem; }
.doc-section p, .doc-section li { color: var(--ink-soft); font-size: .8rem; line-height: 1.75; }
.doc-section ul, .doc-section ol { padding-left: 1.2rem; }
.doc-section code:not(pre code) { padding: .12rem .28rem; background: var(--paper-alt); color: #315a62; font-size: .84em; }
.doc-code { overflow: hidden; margin: 1rem 0; border: 1px solid var(--navy); background: var(--navy); color: #e1ecee; }
.doc-code .code-title { min-height: 2.7rem; }
.doc-code pre { max-width: 100%; overflow-x: auto; margin: 0; padding: 1rem; }
.doc-code code { font-size: .7rem; line-height: 1.7; }
.callout { margin: 1rem 0; padding: .9rem 1rem; border-left: .22rem solid var(--teal); background: var(--teal-pale); }
.callout.warning { border-left-color: var(--orange); background: #f8ece3; }
.callout strong { display: block; margin-bottom: .22rem; font-size: .76rem; }
.callout p { margin: 0; color: #46655f; font-size: .72rem; }
.parameter-table { width: 100%; margin: 1rem 0; border-collapse: collapse; border-block: 1px solid var(--line-strong); background: var(--white); font-size: .71rem; }
.parameter-table th, .parameter-table td { padding: .68rem; border-bottom: 1px solid var(--line); text-align: left; vertical-align: top; }
.parameter-table th { background: var(--paper-alt); color: #4c646b; font-size: .63rem; }
.parameter-table td { color: var(--ink-soft); }
.parameter-table code { white-space: nowrap; }
.architecture-flow { display: grid; grid-template-columns: repeat(5, 1fr); margin: 1.2rem 0; border-block: 1px solid var(--line-strong); }
.architecture-flow div { padding: .85rem; border-right: 1px solid var(--line); }
.architecture-flow div:last-child { border-right: 0; }
.architecture-flow span { color: var(--teal-dark); font-size: .58rem; font-weight: 900; }
.architecture-flow b { display: block; margin: .65rem 0 .22rem; font-size: .72rem; }
.architecture-flow small { color: var(--ink-soft); font-size: .59rem; line-height: 1.5; }
.source-tree { max-width: 100%; overflow-x: auto; padding: 1rem; border: 1px solid var(--line); background: var(--white); color: #4d666e; font-size: .7rem; line-height: 1.7; }
.opensource-card { display: flex; align-items: center; justify-content: space-between; gap: 2rem; margin-top: 1.2rem; padding: 1.1rem 0; border-block: 1px solid var(--line-strong); }
.opensource-card p { max-width: 35rem; margin: .25rem 0 0; color: var(--ink-soft); font-size: .7rem; }
.opensource-card .button { flex: 0 0 auto; }

@media (max-width: 1080px) {
  .hero-grid { grid-template-columns: minmax(0, 1fr) minmax(26rem, 1fr); gap: 2.2rem; }
  h1 { font-size: clamp(3rem, 5vw, 3.5rem); }
  .condition-row { grid-template-columns: minmax(11rem, .9fr) 1.1fr minmax(14rem, 1fr); }
  .condition-count { grid-column: 3; justify-items: start; padding-left: .65rem; }
  .method-steps { grid-template-columns: repeat(3, 1fr); }
  .method-steps li { border-bottom: 1px solid var(--line); }
  .method-steps li:nth-child(3) { border-right: 0; }
  .method-steps li:nth-child(n+4) { border-bottom: 0; }
  .method-steps li:last-child { border-right: 1px solid var(--line); }
}

@media (max-width: 900px) {
  .nav-wrap { flex-wrap: wrap; gap: .55rem 1rem; padding-block: .65rem; }
  nav { order: 3; flex: 0 0 100%; flex-wrap: wrap; justify-content: flex-start; gap: .3rem 1rem; }
  nav a { padding-block: .15rem; font-size: .73rem; }
  .language-link { margin-left: auto; }
  .hero-grid { grid-template-columns: 1fr; }
  .hero-copy { max-width: 46rem; }
  .hero-evidence { max-width: 46rem; }
  .metric-grid { grid-template-columns: repeat(2, 1fr); }
  .metric-grid > div { border-bottom: 1px solid var(--line); }
  .metric-grid > div:nth-child(2n) { border-right: 0; }
  .metric-grid > div:last-child { grid-column: 1 / -1; border-bottom: 0; }
  .sample-content-grid, .format-layout, .quality-layout, .download-layout, .limits-layout, .institution-grid { grid-template-columns: 1fr; }
  .sample-contract, .format-notes, .license-note { padding: 1.5rem 0 0; border-top: 1px solid var(--line-strong); border-left: 0; }
  .condition-row { grid-template-columns: minmax(11rem, .8fr) 1.2fr; }
  .condition-row dl { grid-column: 1; }
  .condition-count { grid-column: 2; grid-row: 2; align-self: end; justify-items: end; padding: 0; }
  .quality-timeline { display: grid; grid-template-columns: repeat(5, 1fr); border-bottom: 1px solid var(--line-strong); }
  .quality-timeline li { grid-template-columns: 1fr; padding: .8rem; border-right: 1px solid var(--line); border-bottom: 0; }
  .quality-timeline li:last-child { border-right: 0; }
  .limits-layout .section-heading { margin-bottom: 1rem; }
  .footer-wrap { align-items: flex-start; flex-direction: column; }
  .footer-links { justify-content: flex-start; }
  .gallery-grid { grid-template-columns: 1fr; }
  .shared-param-grid { grid-template-columns: 1fr 1fr; }
  .docs-layout { grid-template-columns: 1fr; }
  .docs-nav { position: static; display: flex; gap: .25rem .7rem; overflow-x: auto; }
  .docs-nav strong { display: none; }
  .docs-nav a { flex: 0 0 auto; border-bottom: 1px solid var(--line); }
  .trajectory-heading { grid-template-columns: 1fr; align-items: start; }
  .scene-facts { grid-template-columns: 1fr 1fr; }
  .architecture-flow { grid-template-columns: 1fr 1fr; }
  .architecture-flow div { border-bottom: 1px solid var(--line); }
  .architecture-flow div:nth-child(2n) { border-right: 0; }
  .architecture-flow div:last-child { border-bottom: 0; border-right: 1px solid var(--line); }
  .section, .dataset-overview, .doc-section, .trajectory-evidence { scroll-margin-top: 8rem; }
}

@media (max-width: 680px) {
  .shell { width: min(100% - 2rem, 1260px); }
  .hero { padding-block: 3.6rem; }
  h1 { max-width: none; font-size: clamp(2.35rem, 10vw, 3.15rem); line-height: 1.1; }
  .model-boundary { grid-template-columns: 1fr; gap: .35rem; }
  .actions, .actions .button { width: 100%; }
  .hero-spectrum { width: 100%; }
  .overview-heading { align-items: flex-start; flex-direction: column; gap: .2rem; }
  .preview-grid { grid-template-columns: 1fr 1fr; gap: .65rem; }
  .sample-preview figcaption { grid-template-columns: 1fr; }
  .sample-preview figcaption span { text-align: left; }
  .condition-row { grid-template-columns: 1fr; gap: .75rem; }
  .condition-row dl, .condition-count { grid-column: 1; grid-row: auto; justify-items: start; }
  .condition-count { padding-top: .2rem; }
  .balance-panel { grid-template-columns: 1fr; gap: .7rem; }
  .method-steps { grid-template-columns: 1fr; }
  .method-steps li, .method-steps li:nth-child(3), .method-steps li:nth-child(n+4), .method-steps li:last-child { border-right: 0; border-bottom: 1px solid var(--line); }
  .method-steps li:last-child { border-bottom: 0; }
  .method-details { grid-template-columns: 1fr; }
  .quality-timeline { grid-template-columns: 1fr; border-bottom: 0; }
  .quality-timeline li { grid-template-columns: 2rem 1fr; padding: .8rem 0; border-right: 0; border-bottom: 1px solid var(--line); }
  .version-record { grid-template-columns: 1fr; }
  .audit-table th, .audit-table td { padding: .6rem .45rem; font-size: .64rem; }
  .audit-table td:nth-child(2) { white-space: normal; }
  .limits-list li { grid-template-columns: 1fr; gap: .25rem; }
  .subpage-hero h1 { max-width: none; font-size: clamp(2.35rem, 11vw, 3.2rem); }
  .page-meta span:not(:first-child)::before { display: none; }
  .parameter-grid { grid-template-columns: 1fr 1fr; }
  .sample-card-head, .sample-origin, .opensource-card { align-items: flex-start; flex-direction: column; }
  .gallery-method-note { grid-template-columns: 1fr; }
  .shared-param-grid, .architecture-flow, .trajectory-record-grid, .scene-facts { grid-template-columns: 1fr; }
  .architecture-flow div, .architecture-flow div:nth-child(2n), .architecture-flow div:last-child { border-right: 0; border-bottom: 1px solid var(--line); }
  .architecture-flow div:last-child { border-bottom: 0; }
  .evidence-figure figcaption { grid-template-columns: 1fr; }
  .evidence-figure figcaption small { grid-column: auto; }
  .parameter-table { display: block; overflow-x: auto; }
}

@media (max-width: 420px) {
  .nav-wrap { gap: .45rem .75rem; }
  nav { gap: .2rem .75rem; }
  nav a { font-size: .69rem; }
  .metric-grid { grid-template-columns: 1fr; }
  .metric-grid > div, .metric-grid > div:nth-child(2n), .metric-grid > div:last-child { grid-column: auto; border-right: 0; border-bottom: 1px solid var(--line); }
  .metric-grid > div:last-child { border-bottom: 0; }
  .preview-grid { grid-template-columns: 1fr; }
  .hero-text-links { gap: .7rem 1rem; }
  .code-card code, .doc-code code { font-size: .65rem; }
}

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