:root {
  /* Layout inspired by the local MINT-Bench visualization: wide sidebar,
     compact header, summary cards, and independently grouped result panels. */
  --bg: #f6f8fc;
  --bg-secondary: #eef3fb;
  --paper: #fcfcfd;
  --surface: #f6f8fa;
  --surface-blue: #edf4fb;
  --ink: #172033;
  --muted: #526077;
  --subtle: #738096;
  --line: #d9e4f5;
  --line-strong: #bcc8d5;
  --blue: #1f5f9f;
  --blue-dark: #184a7c;
  --blue-soft: #e6f0fa;
  --focus: #0b6fc2;
  --shadow: 0 18px 48px rgba(39, 53, 72, .09);
  --sans: ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", "Noto Sans", "Helvetica Neue", Arial, sans-serif;
  --mono: "SFMono-Regular", Consolas, "Liberation Mono", monospace;
  --radius: 14px;
  --overlap-mark: #9b7029;
  --axis-p: #5d7fa3;
  --axis-o: #668f84;
  --axis-s: #9a8154;
  --axis-t: #9a6e79;
  --axis-n: #7c7398;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; color: var(--ink); background: linear-gradient(180deg, var(--bg), var(--bg-secondary) 60%, var(--bg)); font-family: var(--sans); font-size: 16px; line-height: 1.6; text-rendering: optimizeLegibility; }
a { color: inherit; text-decoration: none; }
button, input, select { font: inherit; }
button, a { -webkit-tap-highlight-color: transparent; }
img { display: block; max-width: 100%; }
:focus-visible { outline: 3px solid rgba(11, 111, 194, .35); outline-offset: 3px; }
[hidden] { display: none !important; }

.skip-link { position: fixed; z-index: 100; top: 10px; left: 10px; padding: 10px 14px; color: #fff; background: var(--blue-dark); border-radius: 6px; transform: translateY(-150%); }
.skip-link:focus { transform: none; }
.site-header { position: sticky; z-index: 20; top: 0; height: 64px; background: var(--bg); border-bottom: 1px solid var(--line); }
.site-header.scrolled { border-color: var(--line); }
.header-inner { display: flex; width: min(1340px, calc(100% - 48px)); height: 100%; margin: 0 auto; align-items: center; justify-content: space-between; }
.brand { display: inline-flex; align-items: center; gap: 10px; font-size: 15px; font-weight: 750; letter-spacing: -.01em; }
.brand img { width: 30px; height: 30px; }
.header-actions { display: flex; align-items: center; gap: 14px; }
.text-link { color: var(--muted); font-size: 14px; font-weight: 650; }
.text-link:hover { color: var(--blue); }
.menu-button { display: none; min-height: 42px; padding: 0 14px; color: var(--ink); background: var(--paper); border: 1px solid var(--line-strong); border-radius: 6px; cursor: pointer; font-size: 14px; font-weight: 650; }

.page-frame { display: grid; width: min(1340px, calc(100% - 48px)); margin: 24px auto 40px; grid-template-columns: 216px minmax(0, 1fr); gap: 24px; align-items: start; }
.side-nav { position: sticky; top: 88px; padding: 16px 12px; background: var(--surface-blue); border: 1px solid var(--line); border-radius: var(--radius); }
.side-nav nav { display: grid; gap: 6px; }
.side-nav a { min-height: 42px; padding: 10px 12px; color: var(--muted); border: 1px solid transparent; border-radius: 8px; font-size: 13px; font-weight: 600; }
.side-nav a:hover { color: var(--ink); }
.side-nav a.active { color: var(--blue-dark); background: var(--paper); border-color: var(--line-strong); }
.paper-shell { min-width: 0; container-type: inline-size; }
main { display: grid; gap: 24px; }
main > section { scroll-margin-top: 88px; }
.section-pad { min-width: 0; padding: 32px; background: var(--paper); border: 1px solid var(--line); border-radius: var(--radius); box-shadow: 0 4px 14px rgba(39, 53, 72, .04); }

.hero { display: grid; overflow: hidden; background: var(--paper); border: 1px solid var(--line); border-radius: var(--radius); box-shadow: 0 8px 22px rgba(39, 53, 72, .05); }
.hero-copy { width: 100%; align-self: center; justify-self: center; text-align: center; }
.hero-copy { padding: 40px 24px; background: linear-gradient(135deg, var(--paper), var(--surface-blue)); }
.hero-logo { width: 64px; height: 64px; margin: 0 auto 24px; }
.hero h1 { margin: 0; line-height: 1.06; letter-spacing: -.045em; }
.hero h1 strong { display: block; color: var(--blue-dark); font-size: clamp(36px, 4cqi, 48px); font-weight: 790; }
.hero h1 span { display: block; margin-top: 20px; font-size: clamp(20px, 2.3cqi, 30px); font-weight: 680; line-height: 1.4; letter-spacing: -.035em; white-space: nowrap; }
.paper-abstract { margin: 0; }
.paper-abstract h3, .construction-pipeline h3 { margin: 0 0 12px; font-size: 19px; letter-spacing: -.015em; }
.construction-pipeline { margin-top: 28px; padding-top: 24px; border-top: 1px solid var(--line); }
.paper-abstract p { margin: 0; color: var(--muted); font-size: 15px; line-height: 1.75; text-align: left; }
.hero-actions { display: flex; flex-wrap: wrap; margin-top: 32px; align-items: center; justify-content: center; gap: 14px 10px; }
.button { display: inline-flex; min-height: 44px; padding: 9px 17px; border: 1px solid var(--line-strong); border-radius: 6px; align-items: center; justify-content: center; font-size: 14px; font-weight: 700; white-space: nowrap; transition: transform .16s ease, background .16s ease, border-color .16s ease; }
.button:active { transform: translateY(1px); }
.button-primary { color: #fff; background: var(--blue-dark); border-color: var(--blue-dark); }
.button-primary:hover { background: #123f6a; }
.button-secondary { color: var(--blue-dark); background: var(--paper); }
.button-secondary:hover { background: var(--blue-soft); border-color: #a7bfd7; }
.paper-status { margin-left: 8px; color: var(--subtle); font-size: 13px; }
.stat-strip { display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); border-top: 1px solid var(--line); }
.stat-strip div { min-width: 0; padding: 28px 14px; border-right: 1px solid var(--line); text-align: center; }
.stat-strip div:last-child { border-right: 0; }
.stat-strip strong { display: block; color: var(--blue-dark); font-size: 26px; font-weight: 760; letter-spacing: -.02em; }
.stat-strip span { display: block; margin-top: 8px; color: var(--muted); font-size: 12px; line-height: 1.5; }

.section-head { max-width: 760px; margin-bottom: 24px; }
.section-head h2 { margin: 0; font-size: clamp(25px, 2.4cqi, 32px); font-weight: 740; line-height: 1.2; letter-spacing: -.035em; }
.section-head p { max-width: 680px; margin: 13px 0 0; color: var(--muted); font-size: 15px; line-height: 1.65; }
.section-head .section-note { max-width: none; margin-top: 14px; padding: 10px 14px; background: var(--blue-soft); border: 1px solid var(--line); border-radius: 8px; font-size: 13px; line-height: 1.65; }
.section-note > strong { color: var(--blue-dark); font-weight: 700; }

.condition-coverage { display: grid; gap: 4px; }
.coverage-heading { margin: 0 0 20px; }
.coverage-heading h3 { margin: 0; font-size: 19px; letter-spacing: -.015em; }
.coverage-note { margin: 10px 0 0; color: var(--muted); font-size: 13px; line-height: 1.65; }
.coverage-note strong { color: var(--blue-dark); }
.coverage-row { display: grid; min-height: 100px; padding: 14px 0; border-bottom: 1px solid var(--line); grid-template-columns: 220px minmax(0, 1fr); align-items: center; gap: 24px; }
.coverage-row:first-child { border-top: 1px solid var(--line); }
.axis-title { display: grid; grid-template-columns: 38px 1fr; align-items: center; gap: 12px; }
.condition-icon { display: inline-block; flex: 0 0 auto; width: 20px; height: 20px; color: var(--axis, var(--blue-dark)); background: currentColor; mask: var(--icon) center / contain no-repeat; -webkit-mask: var(--icon) center / contain no-repeat; vertical-align: middle; }
.axis-p { --axis: var(--axis-p); }.axis-o { --axis: var(--axis-o); }.axis-s { --axis: var(--axis-s); }.axis-t { --axis: var(--axis-t); }.axis-n { --axis: var(--axis-n); }
.icon-users { --icon: url("icons/users.svg"); }
.icon-layers-intersect { --icon: url("icons/layers-intersect.svg"); }
.icon-voice-similarity { --icon: url("icons/voice-similarity.svg"); }
.icon-arrows-exchange { --icon: url("icons/arrows-exchange.svg"); }
.icon-volume { --icon: url("icons/volume.svg"); }
.axis-title > .condition-icon { width: 36px; height: 36px; color: #fff; background: var(--axis); mask: none; -webkit-mask: none; border-radius: 6px; position: relative; }
.axis-title > .condition-icon::after { position: absolute; inset: 7px; content: ""; background: currentColor; mask: var(--icon) center / contain no-repeat; -webkit-mask: var(--icon) center / contain no-repeat; }
.axis-title strong { display: block; font-size: 14px; }
.axis-title small { display: block; margin-top: 1px; color: var(--muted); font-size: 11px; line-height: 1.35; }
.tier-strip { display: grid; grid-template-columns: repeat(var(--columns), 1fr); gap: 6px; }
.tier-button { display: grid; min-width: 0; min-height: 70px; padding: 10px; color: var(--ink); background: var(--paper); border: 1px solid var(--line); border-bottom: 3px solid var(--axis); border-radius: 6px; cursor: pointer; text-align: left; align-content: center; gap: 5px; }
.tier-button:hover, .tier-button.active { border-color: var(--axis); background: color-mix(in srgb, var(--axis) 8%, var(--paper)); }
.tier-button.active { box-shadow: inset 0 0 0 1px var(--axis); }
.tier-button b { font-size: 12px; line-height: 1.4; }
.tier-button em { color: var(--muted); font-size: 10px; font-style: normal; }
.tier-button small { color: var(--muted); font-size: 10px; line-height: 1.4; }

.composition-layout { display: grid; margin-top: 20px; grid-template-columns: minmax(0, 1.15fr) minmax(0, 1fr); gap: 20px; align-items: start; }
.composition-panel { min-width: 0; padding: 22px; border: 1px solid var(--line); border-radius: 10px; }
.composition-panel h3 { margin: 0 0 18px; font-size: 19px; letter-spacing: -.015em; }
.composition-panel p { margin: 0; color: var(--muted); font-size: 14px; line-height: 1.7; }
.composition-panel p strong { color: var(--ink); }
.condition-panel .coverage-heading h3 { margin-bottom: 0; }
.condition-panel .coverage-note { font-size: 13px; }
.context-panel h3 { margin-bottom: 12px; }
.language-section { margin-top: 22px; padding-top: 20px; border-top: 1px solid var(--line); }
.condition-disclosure { margin-top: 18px; }
.condition-disclosure summary { width: fit-content; padding: 8px 0; color: var(--blue-dark); font-size: 12px; font-weight: 650; cursor: pointer; }
.condition-definitions { display: grid; margin: 12px 0 0; padding: 20px; background: var(--surface); border-radius: 8px; gap: 18px; }
.definition-convention { margin: 12px 0 0; color: var(--muted); font-size: 12px; }
.condition-definitions dt { font-size: 14px; font-weight: 650; }
.condition-definitions dd { margin: 7px 0 0; color: var(--muted); font-size: 13px; }
.condition-definitions dd p { margin: 0; }
.source-tiers { display: flex; flex-wrap: wrap; list-style: none; padding: 0; margin: 10px 0 0; gap: 8px 20px; font-family: var(--mono); font-size: 12px; }
.source-tiers li { display: flex; gap: 8px; }
.source-tiers code { color: var(--ink); font-weight: 700; }
.duration-panel h3 { margin-bottom: 8px; }
.duration-panel .duration-description { margin: 0 0 18px; font-size: 12px; }
.duration-stats { display: grid; margin-bottom: 18px; grid-template-columns: repeat(4, 1fr); gap: 8px; }
.duration-stats div { padding: 10px 12px; background: var(--surface); border-radius: 6px; }
.duration-stats strong { display: block; font-size: 14px; white-space: nowrap; }
.duration-stats span { color: var(--muted); font-size: 10px; }
.duration-bars { display: grid; gap: 7px; }
.duration-bars div { display: grid; grid-template-columns: 78px 1fr 28px; align-items: center; gap: 9px; color: var(--muted); font-size: 10px; }
.duration-bars i { height: 6px; background: #e5eaf0; border-radius: 3px; }
.duration-bars b { display: block; height: 100%; background: #7894af; border-radius: inherit; }
.duration-bars strong { color: var(--ink); font-family: var(--mono); font-size: 10px; text-align: right; }
.method-note { margin-top: 38px; border-top: 1px solid var(--line); }
.method-note summary { min-height: 50px; padding: 14px 0; color: var(--blue-dark); cursor: pointer; font-size: 13px; font-weight: 700; }
.pipeline-figure { width: 100%; max-width: 1040px; margin: 0 auto; }
.pipeline-figure a { display: block; padding: 10px; background: #fff; border: 1px solid var(--line); border-radius: var(--radius); }
.pipeline-figure img { width: 100%; height: auto; }
.pipeline-figure figcaption { margin-top: 14px; padding: 16px; color: var(--muted); background: var(--blue-soft); border: 1px solid var(--line); border-radius: 8px; font-size: 14px; line-height: 1.75; }
.pipeline-figure figcaption strong { color: var(--ink); font-weight: 650; }

.board-toolbar { display: flex; margin-bottom: 16px; align-items: center; justify-content: space-between; gap: 20px; }
.board-toolbar p { margin: 0; color: var(--muted); font-size: 12px; text-align: right; }
.segmented { display: inline-flex; padding: 3px; background: #e8edf2; border-radius: 7px; }
.segmented button { min-height: 38px; padding: 7px 14px; color: var(--muted); background: transparent; border: 0; border-radius: 5px; cursor: pointer; font-size: 12px; font-weight: 700; }
.segmented button.active { color: #fff; background: var(--blue-dark); }
.table-wrap { overflow-x: auto; border: 1px solid var(--line); border-radius: var(--radius); }
.results-table { width: 100%; border-collapse: collapse; font-size: 13px; }
.results-table th, .results-table td { padding: 13px 14px; border-bottom: 1px solid var(--line); text-align: right; white-space: nowrap; }
.results-table thead th { color: var(--muted); background: var(--surface); font-size: 11px; font-weight: 700; }
.results-table th:first-child { position: sticky; left: 0; z-index: 1; width: 290px; min-width: 290px; max-width: 290px; text-align: left; white-space: normal; }
.results-table tbody th { background: var(--paper); }
.results-table tbody tr:last-child th, .results-table tbody tr:last-child td { border-bottom: 0; }
.results-table tbody tr:nth-child(even) td:not(.best) { background: var(--surface); }
.results-table tbody tr:hover th, .results-table tbody tr:hover td { background: var(--surface-blue); }
.results-table td { font-family: var(--mono); font-size: 12px; }
.results-table .best { color: var(--blue-dark); background: var(--blue-soft); font-weight: 800; }
.results-table .second { text-decoration: underline; text-decoration-thickness: 1px; text-underline-offset: 3px; }
.results-table .sort-button { min-height: 32px; padding: 0; color: inherit; background: transparent; border: 0; cursor: pointer; font-size: inherit; font-weight: inherit; }
.method-note div { max-width: 820px; padding: 2px 0 10px; color: var(--muted); font-size: 13px; }

.performance-findings { display: grid; margin-bottom: 26px; gap: 12px; }
.performance-findings p { margin: 0; color: var(--muted); font-size: 14px; line-height: 1.75; }
.performance-findings strong { color: var(--ink); }
.diagnostic-metrics { margin: 0 0 24px; padding: 18px; background: var(--blue-soft); border: 1px solid var(--line); border-radius: 8px; }
.diagnostic-metrics h3 { margin: 0 0 14px; color: var(--blue-dark); font-size: 14px; font-weight: 700; }
.diagnostic-metric-key { display: grid; margin: 0; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 14px 20px; }
.diagnostic-metric-key dt { color: var(--ink); font-size: 18px; font-weight: 650; line-height: 1.3; }
.diagnostic-metric-key dd { margin: 6px 0 0; color: var(--muted); font-size: 12px; line-height: 1.65; }
.diagnostic-metrics > p { margin: 16px 0 0; padding-top: 14px; color: var(--muted); border-top: 1px solid var(--line); font-size: 12px; line-height: 1.75; }
sub { font-size: .75em; vertical-align: -.2em; }
.comparison-entry { display: flex; margin: 22px 0 0; padding: 18px 20px; background: var(--blue-soft); border: 1px solid var(--line); border-radius: 8px; align-items: center; justify-content: space-between; gap: 24px; }
.comparison-entry strong { color: var(--ink); font-size: 15px; font-weight: 650; }
.comparison-entry p { margin: 6px 0 0; color: var(--muted); font-size: 13px; line-height: 1.65; }
.comparison-entry a { flex-shrink: 0; text-decoration: none; }
.comparison-playback { display: grid; margin: 18px 0; padding: 14px; background: var(--blue-soft); border: 1px solid var(--line); border-radius: 8px; grid-template-columns: auto minmax(100px, 1fr) auto auto; align-items: center; gap: 14px; }
.comparison-playback > input { width: 100%; min-width: 0; accent-color: var(--blue); }
.comparison-playback > label { display: flex; align-items: center; gap: 6px; color: var(--muted); font-size: 12px; white-space: nowrap; }
.comparison-playback > span { color: var(--muted); font-family: var(--mono); font-size: 12px; }
.sample-comparison { margin-top: 28px; padding-top: 26px; border-top: 1px solid var(--line); }
.comparison-heading h3 { margin: 0; font-size: 22px; letter-spacing: -.02em; }
.comparison-heading p { margin: 7px 0 18px; color: var(--muted); font-size: 13px; }
.comparison-controls { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px; }
.comparison-controls label { display: grid; gap: 7px; color: var(--muted); font-size: 12px; font-weight: 650; }
.comparison-controls select { width: 100%; min-width: 0; min-height: 42px; padding: 8px; color: var(--ink); background: var(--paper); border: 1px solid var(--line-strong); border-radius: 6px; font-size: 13px; }
.comparison-footnote { margin: 0; color: var(--muted); font-size: 12px; line-height: 1.7; }
.comparison-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 14px; }
.comparison-column { min-width: 0; padding: 14px; background: var(--surface); border: 1px solid var(--line); border-radius: 8px; }
.comparison-column h4 { min-height: 40px; margin: 0; font-size: 14px; line-height: 1.5; }
.comparison-status, .comparison-warning { margin: 7px 0 12px; color: var(--muted); font-size: 11px; line-height: 1.6; }
.comparison-warning { color: var(--ink); }
.comparison-lines { position: relative; max-height: 440px; overflow-y: auto; }
.caption-line, .comparison-line { --speaker-text: color-mix(in srgb, var(--speaker), var(--ink) 18%); }
.comparison-line { display: grid; width: 100%; margin: 0; padding: 12px 5px; color: var(--ink); background: transparent; border: 0; border-bottom: 1px solid var(--line); text-align: left; cursor: pointer; gap: 6px; }
.comparison-line time { color: var(--muted); font-family: var(--mono); font-size: 10px; }
.comparison-line b { color: var(--speaker-text); font-size: 11px; overflow-wrap: anywhere; }
.comparison-line span { color: var(--speaker-text); font-size: 13px; line-height: 1.75; overflow-wrap: anywhere; }
.comparison-line:hover, .comparison-line:focus-visible { background: var(--blue-soft); }
.comparison-line.active { background: var(--blue-soft); box-shadow: inset 3px 0 0 var(--speaker); }
.comparison-line.invalid { cursor: default; }
.comparison-line em, .comparison-empty { color: var(--muted); font-size: 12px; line-height: 1.7; }
.comparison-footnote { margin-top: 12px; }


.diagnostic-shell { border: 1px solid var(--line); border-radius: var(--radius); }
.diagnostic-tabs { display: flex; overflow-x: auto; padding: 0 14px; background: var(--surface); border-bottom: 1px solid var(--line); }
.diagnostic-tabs button { min-width: max-content; min-height: 52px; padding: 12px 14px; color: var(--muted); background: transparent; border: 0; border-bottom: 3px solid transparent; cursor: pointer; font-size: 12px; font-weight: 650; }
.diagnostic-tabs button[aria-selected="true"] { color: var(--blue-dark); border-color: var(--blue); }
.diagnostic-panel { padding: 30px; }
.diagnostic-copy { max-width: 750px; margin-bottom: 26px; }
.diagnostic-copy h3 { margin: 0; font-size: 24px; line-height: 1.3; letter-spacing: -.02em; }
.diagnostic-copy p { margin: 9px 0 0; color: var(--muted); font-size: 13px; }
.diagnostic-chart { display: grid; gap: 30px; }
.series-block { min-width: 0; }
.series-title { display: flex; margin-bottom: 12px; padding-bottom: 8px; border-bottom: 1px solid var(--line); justify-content: space-between; font-size: 12px; font-weight: 750; }
.series-axis { display: grid; margin-left: min(290px, 36%); grid-template-columns: 1fr 1fr; color: var(--muted); font-family: var(--mono); font-size: 9px; }
.series-axis span:last-child { text-align: right; }
.series-rows { display: grid; gap: 9px; }
.series-row { display: grid; min-height: 28px; grid-template-columns: minmax(190px, 270px) 1fr 86px; align-items: center; gap: 12px; }
.series-row > span { color: var(--ink); font-size: 12px; font-weight: 560; line-height: 1.3; }
.diverging-track { position: relative; height: 12px; background: linear-gradient(90deg, #f0f3f6 0 49.7%, #aeb9c5 49.7% 50.3%, #f0f3f6 50.3% 100%); }
.diverging-track i { position: absolute; top: 2px; height: 8px; background: var(--blue); }
.diverging-track i.positive { left: 50%; }
.diverging-track i.negative { right: 50%; background: #718096; }
.series-row > strong { font-family: var(--mono); font-size: 10px; text-align: right; }
.significance { color: var(--blue-dark); font-weight: 900; }

.case-meta { display: flex; flex-wrap: wrap; color: var(--muted); gap: 6px 14px; font-size: 11px; }
.condition-details { display: grid; margin: 24px 0; background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); grid-template-columns: repeat(5, 1fr); }
.condition-details > div { min-width: 0; padding: 12px 13px; border-right: 1px solid var(--line); }
.condition-details > div { border-top: 3px solid var(--axis); }
.condition-details > div:last-child { border-right: 0; }
.condition-details dt { display: flex; align-items: center; gap: 6px; color: var(--muted); font-size: 11px; }
.condition-details dd { margin: 7px 0 0; font-size: 12px; font-weight: 650; }
.condition-details small { display: block; margin-top: 4px; color: var(--muted); font-size: 10px; }
.sample-player { display: grid; padding: 14px 16px; background: var(--surface-blue); border: 1px solid #c9d9e8; border-radius: var(--radius); grid-template-columns: 220px 1fr; align-items: center; gap: 16px; }
.sample-player > div { display: grid; }
.sample-player strong { font-size: 13px; }
.sample-player span { color: var(--muted); font-size: 10px; }
.sample-player audio { width: 100%; height: 40px; }
.player-error { margin: 8px 0 0; color: #943f3f; font-size: 12px; }
.focus-windows { display: flex; flex-wrap: wrap; margin-top: 12px; gap: 8px; }
.focus-windows button { min-height: 38px; padding: 7px 11px; color: var(--blue-dark); background: var(--paper); border: 1px solid var(--line-strong); border-radius: 6px; cursor: pointer; font-size: 11px; font-weight: 650; }
.focus-windows button:hover { background: var(--blue-soft); }
.case-evidence { display: grid; margin-top: 24px; grid-template-columns: 1fr; gap: 14px; }
.case-evidence > section { min-width: 0; padding: 18px; background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); }
.case-evidence h3 { margin: 0 0 10px; font-size: 14px; line-height: 1.4; }
.evidence-value { display: grid; gap: 2px; }
.evidence-value strong { color: var(--blue-dark); font-family: var(--mono); font-size: 24px; }
.evidence-value span { color: var(--muted); font-size: 11px; }
.case-evidence p { margin: 10px 0 0; color: var(--muted); font-size: 12px; line-height: 1.6; overflow-wrap: anywhere; }
.case-evidence .source-annotation-note { padding: 10px 12px; background: var(--blue-soft); border: 1px solid var(--line); border-radius: 6px; }
.source-pair-provenance { margin-top: 12px; }
.source-pair-provenance summary { color: var(--blue-dark); cursor: pointer; font-size: 12px; font-weight: 650; }
.timeline-legend { display: flex; flex-wrap: wrap; margin: 0 0 10px; gap: 8px 18px; color: var(--muted); font-size: 11px; }
.timeline-legend span { display: inline-flex; align-items: center; gap: 7px; }
.timeline-legend i { display: inline-block; width: 18px; height: 12px; border-radius: 2px; }
.overlap-swatch { background: color-mix(in srgb, var(--overlap-mark) 22%, var(--surface)); border: 1px solid var(--overlap-mark); }
.similarity-swatch { background: var(--surface-blue); border: 2px solid var(--blue-dark); }
.timeline-head { display: flex; margin: 24px 0 10px; align-items: end; justify-content: space-between; gap: 18px; }
.timeline-head h3, .caption-heading strong { margin: 0; font-size: 14px; }
.timeline-head p, .caption-heading span { margin: 2px 0 0; color: var(--muted); font-size: 11px; }
.timeline-svg-wrap { overflow-x: auto; padding: 10px; background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); }
.timeline-svg { display: block; width: 100%; min-width: 720px; }
.timeline-grid { stroke: #dce3ea; stroke-width: 1; }
.timeline-label, .timeline-tick { fill: var(--muted); font-family: var(--mono); font-size: 9px; }
.timeline-svg .timeline-speech { cursor: pointer; opacity: .84; }
.timeline-svg .timeline-speech:hover, .timeline-svg .timeline-speech:focus { opacity: 1; outline: none; stroke: var(--ink); stroke-width: 2; }
.timeline-overlap-region { fill: var(--overlap-mark); opacity: .2; pointer-events: none; }
.timeline-svg .timeline-similar-speaker { stroke: var(--blue-dark); stroke-width: 2; opacity: 1; }
.timeline-similarity-label { fill: var(--blue-dark); font-weight: 800; }
.timeline-playhead { pointer-events: none; stroke: var(--ink); stroke-width: 2; }
.speaker-timeline { position: relative; overflow-x: auto; padding: 12px 10px 10px 98px; background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); }
.timeline-row { position: relative; min-width: 620px; height: 30px; border-bottom: 1px solid #e6ebf0; }
.timeline-row:last-child { border-bottom: 0; }
.timeline-row > span { position: absolute; right: calc(100% + 12px); top: 6px; width: 78px; overflow: hidden; color: var(--muted); font-family: var(--mono); font-size: 9px; text-align: right; text-overflow: ellipsis; white-space: nowrap; }
.timeline-segment { position: absolute; top: 5px; min-width: 3px; height: 20px; padding: 0; background: var(--speaker); border: 0; border-radius: 3px; cursor: pointer; opacity: .84; }
.timeline-segment:hover, .timeline-segment:focus-visible { opacity: 1; }
.timeline-cursor { position: absolute; z-index: 1; top: 8px; bottom: 8px; left: calc(98px + var(--progress) * (100% - 108px)); width: 2px; pointer-events: none; background: #172033; }
.caption-heading { display: flex; margin: 22px 0 10px; align-items: center; justify-content: space-between; gap: 18px; }
.caption-controls { display: flex; flex-wrap: wrap; align-items: center; gap: 9px; }
.caption-controls label { color: var(--muted); font-size: 11px; }
.caption-controls a, .caption-controls button { min-height: 36px; padding: 6px 10px; color: var(--blue-dark); background: var(--paper); border: 1px solid var(--line-strong); border-radius: 6px; cursor: pointer; font-size: 11px; font-weight: 700; }
.live-transcript { position: relative; overflow-y: auto; max-height: 420px; border: 1px solid var(--line); border-radius: var(--radius); }
.caption-line { display: grid; width: 100%; min-height: 46px; padding: 10px 13px; background: var(--paper); border: 0; border-bottom: 1px solid var(--line); cursor: pointer; grid-template-columns: 52px 96px 1fr; gap: 10px; text-align: left; }
.caption-line:last-child { border-bottom: 0; }
.caption-line:hover { background: var(--surface); }
.caption-line.active { background: var(--blue-soft); box-shadow: inset 3px 0 0 var(--blue); }
.caption-line time { color: var(--muted); font-family: var(--mono); font-size: 10px; }
.caption-line b { overflow: hidden; color: var(--speaker-text); font-family: var(--mono); font-size: 10px; text-overflow: ellipsis; white-space: nowrap; }
.caption-line > span { color: var(--speaker-text); font-size: 13px; line-height: 1.5; }

.sample-browser { overflow: hidden; border: 1px solid var(--line); border-radius: var(--radius); }
.sample-browser-toolbar { display: flex; flex-wrap: wrap; padding: 18px 20px; background: var(--surface); border-bottom: 1px solid var(--line); justify-content: space-between; align-items: center; gap: 12px; }
.sample-browser-toolbar > div:first-child { display: grid; gap: 3px; }
.sample-browser-toolbar strong { font-size: 14px; }
.sample-browser-toolbar > div:first-child > span { color: var(--muted); font-size: 11px; }
.sample-browser-controls { display: flex; flex-wrap: wrap; align-items: center; gap: 10px; }
.sample-browser-controls label { display: flex; align-items: center; gap: 5px; color: var(--muted); font-size: 12px; cursor: pointer; }
.sample-browser-controls button { min-height: 38px; padding: 7px 11px; color: var(--blue-dark); background: var(--paper); border: 1px solid var(--line-strong); border-radius: 6px; cursor: pointer; font-size: 12px; font-weight: 650; }
.sample-browser-controls button:hover { background: var(--blue-soft); }
.sample-browser-controls [role="status"] { min-width: 44px; color: var(--muted); font-family: var(--mono); font-size: 11px; text-align: center; }
.sample-browser-layout { display: grid; grid-template-columns: 220px minmax(0, 1fr); }
.sample-sidebar { position: relative; max-height: 780px; padding: 10px; background: var(--surface); border-right: 1px solid var(--line); overflow-y: auto; overscroll-behavior: contain; }
.sample-sidebar button { display: grid; width: 100%; min-height: 48px; padding: 10px 8px; border: 1px solid transparent; border-radius: 6px; background: transparent; cursor: pointer; align-content: start; gap: 4px; text-align: left; }
.sample-index { color: var(--muted); font-family: var(--mono); font-size: 10px; }
.sample-meta { display: flex; flex-wrap: wrap; color: var(--muted); gap: 2px 8px; font-size: 10px; line-height: 1.5; }
.sample-sidebar strong { display: block; color: var(--ink); font-size: 12px; line-height: 1.4; }
.sample-sidebar button:hover { background: var(--paper); }
.sample-sidebar button.active { background: var(--paper); border-color: var(--line-strong); box-shadow: inset 3px 0 0 var(--blue); }
.sample-stage { position: relative; min-width: 0; height: clamp(620px, calc(100dvh - 160px), 780px); overflow-y: auto; scroll-snap-type: y mandatory; scroll-behavior: auto; }
.sample-panel { display: flex; height: 100%; min-height: 0; padding: 22px; flex-direction: column; scroll-snap-align: start; scroll-snap-stop: always; }
.sample-panel > :not(.live-transcript) { flex-shrink: 0; }
.sample-head h3 { margin: 0 0 5px; color: var(--ink); font-size: 24px; line-height: 1.3; letter-spacing: -.02em; }
.sample-head p { margin: 0; color: var(--muted); font-size: 13px; line-height: 1.55; }
.sample-panel .condition-details { margin: 5px 0 14px; border-radius: 8px; }
.sample-panel .condition-details > div { padding: 8px; }
.sample-panel .condition-details dt { align-items: flex-start; font-size: 11px; line-height: 1.4; }
.sample-panel .condition-icon { width: 16px; height: 16px; }
.sample-panel .condition-details dd { margin-top: 7px; font-size: 15px; font-weight: 650; font-variant-numeric: tabular-nums; }
.sample-panel .condition-details small { font-size: 9px; font-weight: 400; }
.sample-panel .sample-player { grid-template-columns: 120px minmax(0, 1fr); padding: 10px 12px; }
.sample-panel .caption-heading > div:first-child { display: flex; flex-wrap: nowrap; min-height: 30px; gap: 6px; }
.sample-panel .caption-heading { margin: 14px 0 9px; gap: 10px; }
.sample-panel .caption-heading > div:first-child > span { font-size: 10px; }
.sample-panel .caption-controls { gap: 6px; }
.sample-panel .caption-controls a, .sample-panel .caption-controls button { min-height: 30px; padding: 4px 8px; }
.sample-panel .live-transcript { flex: 1; min-height: 120px; max-height: none; overscroll-behavior: contain; }
.sample-panel .caption-line { grid-template-columns: 42px 82px minmax(0, 1fr); gap: 8px; padding: 10px; }
.sample-browser-analysis { padding: 0 22px; border-top: 1px solid var(--line); }
.sample-browser-analysis summary { padding: 15px 0; color: var(--blue-dark); cursor: pointer; font-size: 12px; font-weight: 650; }
.sample-browser-analysis [data-sample-analysis-content] { padding-bottom: 22px; }
.sample-source { display: flex; flex-wrap: wrap; margin: 0; gap: 12px 28px; font-size: 12px; }
.sample-source dt { color: var(--muted); }
.sample-source dd { margin: 0; font-weight: 650; }

.explorer-shell { border: 1px solid var(--line); border-radius: var(--radius); }
.filter-panel { padding: 22px; background: var(--surface); border-bottom: 1px solid var(--line); border-radius: var(--radius) var(--radius) 0 0; }
.filter-toolbar { display: flex; margin-bottom: 17px; align-items: center; justify-content: space-between; gap: 18px; }
.active-filters { display: flex; flex-wrap: wrap; gap: 6px; color: var(--muted); font-size: 11px; }
.active-filters button { min-height: 30px; padding: 4px 9px; color: var(--blue-dark); background: var(--blue-soft); border: 1px solid #b6cade; border-radius: 5px; cursor: pointer; font-size: 10px; font-weight: 700; }
.filter-toolbar > button { min-height: 38px; padding: 6px 11px; color: var(--blue-dark); background: #fff; border: 1px solid var(--line-strong); border-radius: 6px; cursor: pointer; font-size: 11px; font-weight: 700; }
.filter-grid { display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); gap: 16px; }
.filter-group { min-width: 0; margin: 0; padding: 0; border: 0; }
.filter-group legend { width: 100%; min-height: 40px; margin-bottom: 7px; font-size: 12px; font-weight: 650; }
.filter-group legend .condition-icon { width: 18px; height: 18px; margin-right: 6px; }
.filter-options { display: grid; grid-template-columns: 1fr; gap: 6px; }
.filter-options button { display: flex; min-width: 0; min-height: 38px; padding: 5px 7px; color: var(--muted); background: #fff; border: 1px solid var(--line); border-radius: 5px; cursor: pointer; align-items: center; justify-content: space-between; font-size: 10px; font-weight: 700; }
.filter-options button.active { color: var(--ink); background: color-mix(in srgb, var(--axis) 12%, var(--paper)); border-color: var(--axis); box-shadow: inset 0 0 0 1px var(--axis); }
.filter-options button:disabled { color: #9aa4b1; background: #eef1f4; cursor: not-allowed; }
.filter-options small { font-family: var(--mono); font-size: 9px; }
.active-filters button { display: inline-flex; align-items: center; gap: 6px; }
.active-filters .condition-icon { width: 14px; height: 14px; }
.diagnostic-tabs .condition-icon { width: 17px; height: 17px; margin-right: 6px; }
.explorer-results { padding: 24px; }
.match-summary { display: grid; grid-template-columns: 180px 1fr; align-items: end; gap: 28px; }
.match-summary > div > span { display: block; color: var(--muted); font-size: 11px; }
.match-summary > div > strong { display: block; margin-top: 3px; font-size: 17px; }
.match-summary dl { display: grid; margin: 0; grid-template-columns: repeat(5, 1fr); }
.match-summary dl div { padding: 0 12px; border-left: 1px solid var(--line); }
.match-summary dt { color: var(--muted); font-size: 9px; }
.match-summary dd { margin: 2px 0 0; font-family: var(--mono); font-size: 12px; font-weight: 700; }

.resource-list { display: grid; border-top: 1px solid var(--line-strong); }
.resource-row { display: grid; min-height: 64px; padding: 13px 0; border-bottom: 1px solid var(--line); grid-template-columns: 190px 1fr auto; align-items: center; gap: 18px; }
.resource-row strong { font-size: 14px; }
.resource-row p { margin: 0; color: var(--muted); font-size: 12px; }
.resource-status { min-width: 96px; color: var(--muted); font-size: 11px; font-weight: 700; text-align: right; }
.resource-status.available { color: var(--blue-dark); }
.resource-row a { color: var(--blue-dark); text-decoration: underline; text-underline-offset: 3px; }
.documentation-links { display: flex; flex-wrap: wrap; margin-top: 24px; gap: 8px; }
.documentation-links a { min-height: 40px; padding: 8px 12px; color: var(--blue-dark); border: 1px solid var(--line-strong); border-radius: 6px; font-size: 12px; font-weight: 700; }
.loading-block { color: var(--muted); font-size: 13px; }
.module-error { padding: 16px; color: #773a3a; background: #fff4f3; border: 1px solid #e3c0bc; border-radius: 6px; font-size: 12px; }
.module-error button { min-height: 36px; margin-left: 10px; padding: 5px 10px; color: #66302f; background: #fff; border: 1px solid #c9938e; border-radius: 5px; cursor: pointer; font-weight: 700; }

.site-footer { display: flex; margin-top: 24px; padding: 24px 4px; border-top: 1px solid var(--line); align-items: end; justify-content: space-between; gap: 32px; }
.site-footer p { margin: 8px 0 0; color: var(--muted); font-size: 12px; }
.site-footer > div:last-child { display: grid; color: var(--muted); font-size: 11px; text-align: right; gap: 4px; }
.site-footer > div:last-child a { color: var(--blue-dark); font-weight: 700; }
.noscript { margin: 20px auto; padding: 14px; max-width: 900px; color: var(--ink); background: #fff; border: 1px solid var(--line); }

@container (max-width: 900px) {
  .condition-panel .coverage-row { grid-template-columns: 1fr; gap: 12px; }
  .duration-stats { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 1100px) {
  .page-frame { display: block; width: calc(100% - 32px); }
  .side-nav { position: fixed; z-index: 30; top: 76px; right: 18px; display: none; width: 260px; padding: 14px; background: var(--paper); border: 1px solid var(--line); border-radius: var(--radius); box-shadow: var(--shadow); }
  .side-nav.open { display: block; }
  .menu-button { display: block; }
  .series-row { grid-template-columns: minmax(180px, 250px) 1fr 82px; }
}

@media (max-width: 900px) {
  .hero h1 span { white-space: normal; }
  .coverage-row { grid-template-columns: 1fr; gap: 12px; }
  .composition-layout { grid-template-columns: 1fr; }
  .filter-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .match-summary { grid-template-columns: 1fr; gap: 18px; }
  .match-summary dl div:first-child { padding-left: 0; border-left: 0; }
  .sample-browser-layout { grid-template-columns: 170px minmax(0, 1fr); }
  .sample-panel .condition-details { overflow-x: auto; grid-template-columns: repeat(5, minmax(120px, 1fr)); }
  .sample-panel .condition-details > div { border-bottom: 0; border-right: 1px solid var(--line); }
  .sample-panel .caption-heading { align-items: flex-start; flex-direction: column; }
}

@media (max-width: 720px) {
  .site-header { height: 62px; }
  .header-inner { width: calc(100% - 28px); }
  .desktop-link { display: none; }
  .page-frame { width: calc(100% - 24px); margin: 16px auto 24px; }
  main { gap: 16px; }
  .section-pad { padding: 24px 18px; }
  .hero-copy { padding: 32px 18px; }
  .hero-logo { width: 60px; height: 60px; margin-bottom: 20px; }
  .hero h1 span { margin-top: 16px; }
  .hero-actions { margin-top: 28px; }
  .construction-pipeline { margin-top: 24px; padding-top: 20px; }
  .paper-abstract p { font-size: 14px; line-height: 1.7; }
  .paper-status { width: 100%; margin: 2px 0 0; }
  .stat-strip { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .stat-strip div { padding: 20px 12px; border-bottom: 1px solid var(--line); }
  .stat-strip div:nth-child(2n) { border-right: 0; }
  .stat-strip div:last-child { grid-column: 1 / -1; border-bottom: 0; }
  .coverage-row { grid-template-columns: 1fr; gap: 10px; }
  .tier-strip { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .composition-panel { padding: 18px; }
  .duration-stats { grid-template-columns: repeat(2, 1fr); }
  .board-toolbar { align-items: stretch; flex-direction: column; }
  .board-toolbar p { text-align: left; }.segmented { align-self: flex-start; }
  .results-table th:first-child { width: 230px; min-width: 230px; max-width: 230px; }
  .diagnostic-panel { padding: 22px 18px; }
  .diagnostic-metrics { padding: 14px; }
  .comparison-controls, .comparison-grid { grid-template-columns: 1fr; }
  .comparison-entry { align-items: flex-start; flex-direction: column; gap: 14px; }
  .comparison-entry .button { width: 100%; }
  .comparison-playback { grid-template-columns: auto 1fr; gap: 12px; }
  .comparison-playback > input { grid-column: 1 / -1; grid-row: 2; }
  .comparison-playback > label { grid-column: 1 / -1; }
  .comparison-playback > span { text-align: right; }
  .comparison-column h4 { min-height: 0; }
  .diagnostic-metric-key { grid-template-columns: 1fr; }
  .series-row { grid-template-columns: 1fr 74px; gap: 5px 10px; }
  .series-row > span { grid-column: 1 / -1; }
  .diverging-track { grid-column: 1; }
  .series-axis { margin-left: 0; }
  .condition-details { grid-template-columns: repeat(2, 1fr); }
  .condition-details > div { border-bottom: 1px solid var(--line); }.condition-details > div:nth-child(2n) { border-right: 0; }
  .condition-details > div:last-child { border-bottom: 0; }
  .sample-player { grid-template-columns: 1fr; gap: 10px; }
  .case-evidence { grid-template-columns: 1fr; }
  .timeline-head, .caption-heading { align-items: flex-start; flex-direction: column; }
  .caption-line { grid-template-columns: 45px 1fr; }.caption-line > span { padding-top: 3px; grid-column: 1 / -1; }
  .filter-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .match-summary dl { grid-template-columns: repeat(2, 1fr); gap: 10px 0; }
  .match-summary dl div:nth-child(odd) { padding-left: 0; border-left: 0; }
  .resource-row { grid-template-columns: 1fr auto; gap: 4px 14px; }.resource-row p { grid-column: 1 / -1; grid-row: 2; }.resource-status { grid-column: 2; grid-row: 1; }
  .site-footer { align-items: flex-start; flex-direction: column; }.site-footer > div:last-child { text-align: left; }
  .sample-browser-layout { grid-template-columns: 1fr; }
  .sample-sidebar { display: flex; max-height: none; padding: 8px; border-right: 0; border-bottom: 1px solid var(--line); overflow-x: auto; }
  .sample-sidebar button { flex: 0 0 150px; width: 150px; }
  .sample-browser-toolbar { padding: 14px; }
  .sample-browser-controls { width: 100%; justify-content: space-between; gap: 7px; }
  .sample-stage { height: clamp(650px, calc(100dvh - 100px), 780px); }
  .sample-panel { padding: 16px 12px; }
  .sample-head h3 { font-size: 21px; }
  .sample-panel .sample-player { grid-template-columns: 1fr; gap: 5px; }
  .sample-panel .sample-player > div { display: flex; gap: 8px; align-items: center; }
  .sample-panel .caption-line { grid-template-columns: 42px minmax(0, 1fr); }
  .sample-panel .caption-line > span { grid-column: 1 / -1; }
  .sample-browser-analysis { padding: 0 14px; }
}

@media (max-width: 420px) {
  .hero h1 strong { font-size: 36px; }.hero h1 span { font-size: 21px; }
  .hero-actions .button { flex: 1 1 145px; }
  .filter-panel, .explorer-results { padding: 18px 14px; }
  .filter-grid { grid-template-columns: 1fr; }
  .filter-group legend { min-height: 0; }
  .filter-options { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .match-summary dl { grid-template-columns: 1fr 1fr; }
}

@media print {
  body { background: #fff; }
  .site-header, .side-nav, .hero-actions, .board-toolbar { display: none; }
  .page-frame { display: block; width: 100%; margin: 0; }
  .paper-shell { border: 0; box-shadow: none; }
}

@media (prefers-color-scheme: dark) {
  :root {
    color-scheme: dark;
    --bg: #101827;
    --bg-secondary: #141f32;
    --paper: #192438;
    --surface: #202d43;
    --surface-blue: #1e314c;
    --ink: #edf2fa;
    --muted: #b5c4d9;
    --subtle: #a2b4cc;
    --line: #35465f;
    --line-strong: #56718f;
    --blue: #83b3e7;
    --blue-dark: #a8cef7;
    --blue-soft: #213c5b;
    --overlap-mark: #d8ac64;
  }
  .tier-button, .filter-options button, .filter-toolbar > button,
  .pipeline-figure a {
    background: var(--paper);
  }
  .tier-button:hover, .tier-button.active { background: var(--surface-blue); }
  .button-primary, .segmented button.active {
    color: #f7f9fd;
    background: #215887;
    border-color: #56718f;
  }
  .button-primary:hover { background: #2b699e; }
  .filter-options button:disabled { color: #a2b4cc; background: var(--surface); }
  .segmented { background: var(--surface); }
  .sample-player { border-color: var(--line-strong); }
  .player-error { color: #f0a8a8; }
  .timeline-grid { stroke: var(--line); }
  .caption-line, .comparison-line { --speaker-text: color-mix(in srgb, var(--speaker), #fff 50%); }
  .duration-bars i { background: var(--surface-blue); }
  .diverging-track { background: linear-gradient(90deg, var(--surface) 0 49.7%, var(--line-strong) 49.7% 50.3%, var(--surface) 50.3% 100%); }
}

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

/* The language control shares the existing compact header and focus palette. */
.language-button { min-height: 36px; padding: 5px 10px; color: var(--blue-dark); background: var(--paper); border: 1px solid var(--line-strong); border-radius: 6px; font-size: 13px; font-weight: 650; cursor: pointer; white-space: nowrap; }
.language-button:hover { background: var(--blue-soft); }
.language-button:focus-visible { outline: 2px solid var(--focus); outline-offset: 3px; }
html[lang="zh-CN"] { line-break: strict; }
html[lang="zh-CN"] .hero h1 span { letter-spacing: .01em; }

.visually-hidden { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip-path: inset(50%); white-space: nowrap; border: 0; }