:root {
  color-scheme: light;
  --paper: #f7f6f2;
  --surface: #fffefa;
  --ink: #202922;
  --muted: #72766d;
  --line: #d9ddd2;
  --blue: #3167c6;
  --blue-soft: #e5edf9;
  --green: #287557;
  --green-soft: #e3eee5;
  --amber: #b97625;
  --amber-soft: #f8ead3;
  --code: #eff0e9;
  --header: rgba(247, 246, 242, 0.94);
}
html[data-theme="dark"] {
  color-scheme: dark;
  --paper: #171c19;
  --surface: #202722;
  --ink: #e1e7dd;
  --muted: #a5afa1;
  --line: #3c483d;
  --blue: #8bb2f5;
  --blue-soft: #263b55;
  --green: #8bc5a0;
  --green-soft: #294235;
  --amber: #e4b16c;
  --amber-soft: #493a25;
  --code: #2a322b;
  --header: rgba(23, 28, 25, 0.94);
}
* {
  box-sizing: border-box;
}
html {
  scroll-behavior: smooth;
  scroll-padding-top: 104px;
}
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family:
    -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
    "Microsoft YaHei", sans-serif;
  font-size: 16px;
  line-height: 1.85;
  -webkit-font-smoothing: antialiased;
}
a {
  color: inherit;
  text-decoration: none;
}
a:hover {
  color: var(--green);
}
button,
input {
  font: inherit;
}
button {
  cursor: pointer;
}
button:focus-visible,
a:focus-visible,
input:focus-visible,
summary:focus-visible {
  outline: 3px solid var(--blue);
  outline-offset: 4px;
}
button {
  color: var(--ink);
}
h1,
h2,
h3,
p {
  margin: 0;
}
h1,
h2,
h3 {
  font-weight: 600;
}
p + p {
  margin-top: 17px;
}
strong {
  font-weight: 600;
}
::selection {
  background: var(--green-soft);
}
.skip-link {
  position: absolute;
  top: -90px;
  left: 20px;
  padding: 8px 16px;
  background: var(--ink);
  color: var(--paper);
  z-index: 10;
}
.skip-link:focus {
  top: 12px;
}
.site-header {
  height: 85px;
  position: sticky;
  top: 0;
  z-index: 5;
  background: var(--header);
  backdrop-filter: blur(14px);
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--line);
  padding: 0 5vw;
}
.brand {
  display: flex;
  align-items: center;
  gap: 14px;
  font-size: 12px;
  letter-spacing: 1.8px;
}
.brand-mark {
  font-family: Georgia, serif;
  font-size: 37px;
  line-height: 1;
  letter-spacing: -4px;
  margin-right: 3px;
}
.brand b {
  font-weight: 500;
  color: var(--muted);
  margin-left: 8px;
}
.site-header nav {
  display: flex;
  align-items: center;
  gap: 27px;
  font-size: 13px;
}
.icon-button {
  background: none;
  border: 1px solid var(--line);
  border-radius: 50%;
  width: 36px;
  height: 36px;
  padding: 0;
  font-size: 20px;
  line-height: 1;
}
.page-layout {
  max-width: 1370px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 190px minmax(0, 1fr);
  gap: 70px;
  padding: 0 48px;
}
.contents {
  padding-top: 66px;
  position: sticky;
  top: 85px;
  align-self: start;
  height: calc(100vh - 85px);
  max-height: 790px;
}
.eyebrow {
  font-size: 10px;
  letter-spacing: 1.7px;
  font-weight: 600;
  color: var(--muted);
}
.contents nav {
  display: flex;
  flex-direction: column;
  margin-top: 30px;
  gap: 13px;
  font-size: 12px;
}
.contents nav a {
  color: var(--muted);
  position: relative;
  padding-left: 11px;
  border-left: 2px solid transparent;
  transition: color 0.15s;
}
.contents nav a.active {
  color: var(--ink);
  border-color: var(--green);
}
.contents-note {
  border-top: 1px solid var(--line);
  margin-top: 32px;
  padding: 22px 0 0 13px;
  font-size: 11px;
  color: var(--muted);
  line-height: 1.8;
}
.contents-note strong {
  font-size: 12px;
  letter-spacing: 1px;
  color: var(--ink);
}
.contents-note span:last-child {
  display: block;
  margin-top: 10px;
}
.status-dot {
  display: inline-block;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--green);
  margin-right: 6px;
}
.hero {
  padding-top: 60px;
}
.hero h1 {
  font-size: clamp(38px, 4.1vw, 59px);
  line-height: 1.25;
  letter-spacing: -1.8px;
  margin: 19px 0 21px;
  font-weight: 600;
}
.hero-deck {
  font-size: 17px;
  line-height: 1.85;
  color: var(--muted);
}
.hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 20px;
  margin: 25px 0 36px;
  font-size: 11px;
  color: var(--muted);
}
.hero-meta > a {
  color: var(--green);
}
.hero-visual {
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  padding: 19px 0 14px;
  margin-bottom: 35px;
}
.hero-axis {
  display: flex;
  justify-content: space-between;
  margin: 0 100px 19px 70px;
  font-size: 10px;
  color: var(--muted);
}
.signal-row {
  display: grid;
  grid-template-columns: 54px 1fr 66px;
  gap: 14px;
  align-items: center;
  font-size: 11px;
  margin: 10px 0;
}
.signal-label {
  font-size: 10px;
  color: var(--muted);
}
.signal {
  height: 28px;
  background-size: 8px 100%;
  border-radius: 3px;
  position: relative;
}
.input-signal {
  background-color: var(--blue-soft);
  background-image: repeating-linear-gradient(
    90deg,
    transparent 0 2px,
    var(--blue) 2px 4px,
    transparent 4px 8px
  );
  clip-path: polygon(
    0 25%,
    2% 15%,
    4% 40%,
    6% 8%,
    8% 38%,
    10% 23%,
    12% 43%,
    14% 16%,
    16% 40%,
    18% 5%,
    20% 28%,
    22% 10%,
    24% 42%,
    26% 20%,
    28% 43%,
    30% 18%,
    32% 31%,
    34% 10%,
    36% 43%,
    38% 18%,
    40% 42%,
    42% 3%,
    44% 27%,
    46% 7%,
    48% 41%,
    50% 17%,
    52% 32%,
    54% 7%,
    56% 40%,
    58% 20%,
    60% 40%,
    62% 8%,
    64% 35%,
    66% 18%,
    68% 40%,
    70% 9%,
    72% 35%,
    74% 18%,
    76% 34%,
    78% 9%,
    80% 43%,
    82% 22%,
    84% 44%,
    86% 8%,
    88% 33%,
    90% 18%,
    92% 41%,
    94% 5%,
    96% 35%,
    98% 21%,
    100% 38%,
    100% 65%,
    98% 78%,
    96% 65%,
    94% 95%,
    92% 59%,
    90% 82%,
    88% 67%,
    86% 92%,
    84% 56%,
    82% 78%,
    80% 57%,
    78% 91%,
    76% 66%,
    74% 82%,
    72% 65%,
    70% 91%,
    68% 60%,
    66% 82%,
    64% 65%,
    62% 92%,
    60% 60%,
    58% 80%,
    56% 60%,
    54% 93%,
    52% 68%,
    50% 83%,
    48% 59%,
    46% 93%,
    44% 73%,
    42% 97%,
    40% 58%,
    38% 82%,
    36% 57%,
    34% 90%,
    32% 69%,
    30% 82%,
    28% 57%,
    26% 80%,
    24% 58%,
    22% 90%,
    20% 72%,
    18% 95%,
    16% 60%,
    14% 84%,
    12% 57%,
    10% 77%,
    8% 62%,
    6% 92%,
    4% 60%,
    2% 85%,
    0 75%
  );
}
.output-signal {
  background-image: repeating-linear-gradient(
    90deg,
    var(--green) 0 3px,
    transparent 3px 7px
  );
  height: 23px;
  opacity: 0.88;
  mask-image: linear-gradient(
    90deg,
    transparent 0 14%,
    black 14% 25%,
    transparent 25% 50%,
    black 50% 80%,
    transparent 80% 85%,
    black 85%
  );
}
.task-signal {
  display: flex;
  margin-left: 30%;
  gap: 0;
  font-size: 10px;
  height: 26px;
}
.task-signal i {
  font-style: normal;
  background: var(--code);
  border: 1px dashed var(--muted);
  padding: 0 35px;
  white-space: nowrap;
}
.task-signal b {
  font-weight: 500;
  background: var(--green-soft);
  padding: 0 12px;
  white-space: nowrap;
}
.visual-caption {
  font-size: 10px;
  color: var(--muted);
  margin: 18px 0 0 68px;
}
.lead {
  font-size: 19px;
  line-height: 1.9;
  margin-bottom: 18px;
}
.article-section {
  border-top: 1px solid var(--line);
  margin-top: 62px;
  padding-top: 38px;
  scroll-margin-top: 108px;
}
.section-number {
  color: var(--green);
  font-size: 10px;
  letter-spacing: 1.8px;
  margin-bottom: 12px;
  font-weight: 600;
}
h2 {
  font-size: 28px;
  line-height: 1.5;
  letter-spacing: -0.4px;
  margin-bottom: 23px;
}
h3 {
  font-size: 18px;
  line-height: 1.6;
  margin: 29px 0 12px;
}
main p {
  font-size: 15px;
  line-height: 1.95;
}
.citation {
  font-size: 11px;
  color: var(--green);
  white-space: nowrap;
  margin-left: 5px;
}
.terminology {
  color: var(--muted);
}
main .terminology {
  font-size: 12px;
}
.interactive-figure {
  margin: 27px 0 25px;
  background: var(--surface);
  border: 1px solid var(--line);
  padding: 25px 28px;
  border-radius: 6px;
}
.figure-heading {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 15px;
}
.figure-label {
  font-size: 10px;
  letter-spacing: 1px;
  color: var(--muted);
}
.figure-heading h3 {
  font-size: 20px;
  margin: 4px 0 20px;
}
.evidence-tag {
  border: 1px solid var(--line);
  font-size: 10px;
  line-height: 1.5;
  padding: 4px 7px;
  white-space: nowrap;
  border-radius: 3px;
}
.simulated {
  background: var(--amber-soft);
  color: var(--amber);
  border-color: transparent;
}
.reported {
  background: var(--blue-soft);
  color: var(--blue);
  border-color: transparent;
}
.inference {
  background: var(--code);
  color: var(--muted);
  border-color: transparent;
}
.segmented {
  display: inline-flex;
  flex-wrap: wrap;
  border: 1px solid var(--line);
  border-radius: 4px;
  overflow: hidden;
  margin-bottom: 28px;
}
.segmented button {
  border: 0;
  background: transparent;
  padding: 7px 20px;
  font-size: 12px;
}
.segmented button[aria-pressed="true"] {
  background: var(--ink);
  color: var(--paper);
}
.architecture-flow {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  min-height: 88px;
}
.flow-node {
  padding: 11px 9px;
  border: 1px solid var(--line);
  border-radius: 4px;
  text-align: center;
  flex: 1;
  min-width: 0;
}
.flow-node strong {
  display: block;
  font-size: 12px;
}
.flow-node small {
  font-size: 10px;
  color: var(--muted);
  display: block;
  margin-top: 3px;
}
.flow-node.input {
  background: var(--blue-soft);
  border-color: transparent;
}
.flow-node.output {
  background: var(--green-soft);
  border-color: transparent;
}
.flow-arrow {
  font-size: 17px;
  color: var(--muted);
}
.architecture-detail {
  border-top: 1px solid var(--line);
  margin-top: 24px;
  padding-top: 18px;
  min-height: 105px;
}
.architecture-detail p {
  font-size: 13px;
}
.architecture-detail strong {
  color: var(--green);
}
.three-concepts {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin: 30px 0;
}
.three-concepts h3 {
  margin: 0 0 8px;
  font-size: 15px;
}
.three-concepts p {
  font-size: 12px;
  line-height: 1.8;
  color: var(--muted);
}
.table-wrap {
  overflow-x: auto;
  margin: 24px 0 22px;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  -webkit-overflow-scrolling: touch;
}
.table-wrap table {
  border-collapse: collapse;
  width: 100%;
  font-size: 12px;
  line-height: 1.85;
  min-width: 580px;
}
.table-wrap th,
.table-wrap td {
  text-align: left;
  vertical-align: top;
  padding: 13px 12px;
  border-bottom: 1px solid var(--line);
}
.table-wrap th:first-child,
.table-wrap td:first-child {
  padding-left: 0;
}
.table-wrap th:last-child,
.table-wrap td:last-child {
  padding-right: 0;
}
.table-wrap th {
  font-weight: 600;
}
.table-wrap thead th {
  color: var(--muted);
  font-size: 11px;
  white-space: nowrap;
}
.table-wrap tbody tr:last-child > * {
  border-bottom: 0;
}
.table-wrap tbody th {
  width: 18%;
  min-width: 85px;
}
.table-wrap a {
  color: var(--green);
  white-space: nowrap;
  font-size: 11px;
}
.table-wrap caption {
  text-align: left;
  color: var(--muted);
  font-size: 11px;
  padding: 12px 0;
}
.reading-note {
  border-left: 2px solid var(--green);
  padding: 10px 0 10px 18px;
  color: var(--muted);
}
main .reading-note {
  font-size: 13px;
}
.time-vocabulary {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  margin: 28px 0;
  gap: 18px;
}
.time-vocabulary > div {
  border-top: 2px solid var(--line);
  padding-top: 12px;
}
.time-vocabulary span {
  font-size: 13px;
  font-weight: 600;
}
.time-vocabulary p {
  font-size: 11px;
  color: var(--muted);
  line-height: 1.8;
  margin-top: 7px;
}
.figure-intro {
  color: var(--muted);
}
main .figure-intro {
  font-size: 11px;
  line-height: 1.85;
}
.lab-controls {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 30px;
  margin: 23px 0 13px;
}
.lab-controls label {
  font-size: 12px;
  font-weight: 500;
}
.lab-controls output {
  float: right;
  font-variant-numeric: tabular-nums;
  font-weight: 600;
  color: var(--green);
}
input[type="range"] {
  display: block;
  width: 100%;
  margin: 13px 0;
  accent-color: var(--green);
}
.lab-presets {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.lab-presets button {
  background: transparent;
  border: 1px solid var(--line);
  font-size: 10px;
  padding: 4px 10px;
  border-radius: 3px;
}
.lab-presets button:hover {
  background: var(--code);
}
.lab-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  margin: 25px 0;
}
.lab-stats > div {
  border-top: 1px solid var(--line);
  padding-top: 11px;
}
.lab-stats span {
  display: block;
  font-size: 10px;
  color: var(--muted);
}
.lab-stats strong {
  display: block;
  font-size: 23px;
  font-weight: 500;
  font-variant-numeric: tabular-nums;
  line-height: 1.6;
  margin-top: 3px;
}
.lab-stats .overloaded {
  color: var(--amber);
}
.queue-chart {
  height: 246px;
  width: 100%;
  position: relative;
  padding: 25px 0 10px;
}
.queue-row {
  position: relative;
  height: 24px;
  margin-left: 45px;
  border-bottom: 1px solid var(--line);
}
.queue-label {
  position: absolute;
  right: calc(100% + 10px);
  font-size: 9px;
  color: var(--muted);
  top: 1px;
  white-space: nowrap;
}
.queue-arrival {
  position: absolute;
  width: 5px;
  height: 13px;
  top: 4px;
  background: var(--blue);
  transform: translateX(-2px);
  z-index: 2;
}
.queue-compute,
.queue-wait {
  height: 10px;
  top: 5px;
  position: absolute;
  border-radius: 2px;
}
.queue-compute {
  background: var(--green);
  opacity: 0.82;
}
.queue-wait {
  background: var(--amber);
  opacity: 0.5;
}
.queue-ticks {
  position: absolute;
  left: 45px;
  right: 0;
  top: 0;
  display: flex;
  justify-content: space-between;
  font-size: 9px;
  color: var(--muted);
  font-variant-numeric: tabular-nums;
}
.chart-legend {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
  color: var(--muted);
  font-size: 10px;
  margin: 10px 0 17px;
}
.chart-legend span {
  display: flex;
  align-items: center;
  gap: 6px;
}
.chart-legend i {
  width: 14px;
  height: 6px;
  display: inline-block;
  border-radius: 1px;
}
.legend-input {
  background: var(--blue);
}
.legend-compute {
  background: var(--green);
}
.legend-wait {
  background: var(--amber);
  opacity: 0.55;
}
main .selected-detail {
  font-size: 12px;
  min-height: 46px;
}
main .formula {
  font-family: Georgia, serif;
  font-size: 16px;
  line-height: 1.7;
  color: var(--muted);
  margin-top: 10px;
}
.source-line {
  color: var(--muted);
}
main .source-line {
  font-size: 11px;
}
.source-line a {
  color: var(--green);
}
.latency-path {
  display: flex;
  align-items: center;
  gap: 9px;
  margin: 23px 0 20px;
}
.latency-path span {
  background: var(--code);
  padding: 10px 12px;
  font-size: 11px;
  flex: 1;
  text-align: center;
  min-height: 60px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.latency-path b {
  font-weight: 400;
  color: var(--muted);
}
.benchmark-chart {
  margin: 9px 0 22px;
}
.benchmark-row {
  display: grid;
  grid-template-columns: 120px 1fr;
  gap: 15px;
  align-items: center;
  margin: 15px 0;
}
.benchmark-label {
  font-size: 11px;
}
.benchmark-tracks {
  position: relative;
  height: 48px;
  padding-right: 45px;
}
.benchmark-bar {
  height: 11px;
  position: relative;
  min-width: 2px;
  border-radius: 2px;
  margin: 7px 0;
}
.benchmark-bar.first {
  background: var(--blue);
}
.benchmark-bar.answer {
  background: var(--green);
}
.benchmark-value {
  position: absolute;
  left: calc(100% + 7px);
  font-size: 9px;
  white-space: nowrap;
  line-height: 1;
  top: 1px;
  font-variant-numeric: tabular-nums;
}
.benchmark-axis {
  display: flex;
  margin-left: 135px;
  margin-right: 45px;
  justify-content: space-between;
  font-size: 9px;
  color: var(--muted);
}
.benchmark-table td {
  white-space: nowrap;
  font-variant-numeric: tabular-nums;
}
.benchmark-missing {
  display: grid;
  grid-template-columns: 120px 1fr;
  gap: 15px;
  padding: 13px 0;
  border-top: 1px solid var(--line);
  font-size: 11px;
}
.benchmark-missing span,
.missing-data-row td {
  color: var(--muted);
}
.argument-chain {
  display: flex;
  gap: 20px;
  margin: 28px 0;
}
.argument-chain > div {
  flex: 1;
  padding: 12px 0;
  border-top: 1px solid var(--green);
}
.argument-chain span {
  font-size: 10px;
  color: var(--green);
  display: block;
}
.argument-chain strong {
  font-size: 12px;
  font-weight: 500;
  line-height: 1.8;
  display: block;
  margin-top: 8px;
}
.design-routes {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 26px 30px;
  margin: 27px 0;
}
.design-routes > div {
  border-top: 1px solid var(--line);
  padding-top: 13px;
}
.design-routes span {
  font-size: 10px;
  color: var(--green);
}
.design-routes h3 {
  font-size: 17px;
  margin: 7px 0 10px;
}
.design-routes p {
  font-size: 12px;
  color: var(--muted);
}
.training-steps {
  list-style: none;
  padding: 0;
  margin: 30px 0;
}
.training-steps li {
  display: flex;
  gap: 23px;
  padding: 19px 0;
  border-top: 1px solid var(--line);
}
.training-steps li > span {
  font-family: Georgia, serif;
  color: var(--green);
  font-size: 22px;
  min-width: 32px;
}
.training-steps h3 {
  font-size: 16px;
  margin: 0 0 8px;
}
.training-steps p {
  font-size: 13px;
}
.evaluation-equation {
  margin: 25px 0;
  padding: 21px 0;
  border-top: 1px solid var(--green);
  border-bottom: 1px solid var(--line);
}
.evaluation-equation span {
  display: block;
  color: var(--muted);
  font-size: 11px;
  margin: 0 0 6px;
}
.evaluation-equation strong {
  font-size: 16px;
  font-weight: 500;
  display: block;
}
.evaluation-equation strong + span {
  margin-top: 18px;
}
.checklist {
  padding-left: 20px;
  margin: 20px 0;
  font-size: 14px;
}
.checklist li {
  padding: 5px 0 5px 6px;
}
.checklist li::marker {
  color: var(--green);
}
.scenario-list {
  margin: 23px 0;
}
.scenario-list details {
  border-top: 1px solid var(--line);
  padding: 15px 0;
}
.scenario-list details:last-child {
  border-bottom: 1px solid var(--line);
}
.scenario-list summary {
  cursor: pointer;
  font-size: 14px;
  font-weight: 500;
  list-style: none;
  position: relative;
  padding-right: 25px;
}
.scenario-list summary::-webkit-details-marker {
  display: none;
}
.scenario-list summary::after {
  content: "+";
  position: absolute;
  right: 3px;
  color: var(--muted);
}
.scenario-list details[open] summary::after {
  content: "−";
}
.scenario-list summary span {
  font-size: 10px;
  color: var(--green);
  margin-right: 20px;
  font-variant-numeric: tabular-nums;
}
.scenario-list p {
  margin: 10px 30px 0 36px;
  font-size: 13px;
  color: var(--muted);
}
.claim-template {
  background: var(--green-soft);
  margin-top: 25px;
  padding: 20px 23px;
}
.claim-template p {
  font-size: 14px;
  margin-top: 10px;
}
.source-list {
  padding-left: 25px;
  margin: 28px 0 0;
}
.source-list li {
  padding: 12px 0 12px 7px;
  border-top: 1px solid var(--line);
  scroll-margin-top: 110px;
}
.source-list li::marker {
  font-size: 10px;
  color: var(--green);
}
.source-list a {
  font-size: 13px;
  font-weight: 500;
}
.source-list span {
  display: block;
  color: var(--muted);
  font-size: 11px;
  margin-top: 4px;
  line-height: 1.8;
}
.article-footer {
  margin: 60px 0 0;
  padding: 26px 0 34px;
  border-top: 1px solid var(--line);
  font-size: 10px;
  color: var(--muted);
  display: flex;
  gap: 15px;
  justify-content: space-between;
  flex-wrap: wrap;
}
.article-footer > div {
  display: flex;
  gap: 20px;
}
.article-footer small {
  font-size: 9px;
  flex-basis: 100%;
  letter-spacing: 0.4px;
}
@media (min-width: 1400px) {
  .page-layout {
    gap: 85px;
    grid-template-columns: 190px minmax(0, 910px);
  }
}
@media (max-width: 1050px) {
  .page-layout {
    grid-template-columns: 155px minmax(0, 1fr);
    gap: 32px;
    padding: 0 30px;
  }
  .contents nav {
    font-size: 11px;
  }
  .interactive-figure {
    padding: 22px;
  }
  .flow-node small {
    font-size: 9px;
  }
  .flow-node strong {
    font-size: 11px;
  }
  .hero h1 {
    font-size: 46px;
  }
  .time-vocabulary {
    gap: 12px;
  }
  .figure-heading h3 {
    font-size: 18px;
  }
}
@media (max-width: 780px) {
  .site-header {
    height: 68px;
    padding: 0 23px;
  }
  .site-header nav {
    gap: 18px;
  }
  .site-header nav > a:first-child {
    display: none;
  }
  .brand {
    font-size: 10px;
    gap: 9px;
  }
  .brand b {
    margin-left: 3px;
  }
  .brand-mark {
    font-size: 32px;
  }
  .page-layout {
    display: block;
    padding: 0 24px;
  }
  .contents {
    position: static;
    height: auto;
    max-height: none;
    padding-top: 22px;
  }
  .contents > .eyebrow,
  .contents-note {
    display: none;
  }
  .contents nav {
    margin: 0;
    flex-direction: row;
    flex-wrap: wrap;
    gap: 4px 16px;
    padding-bottom: 16px;
    border-bottom: 1px solid var(--line);
  }
  .contents nav a {
    border-left: 0;
    padding: 3px 0;
    font-size: 10px;
  }
  .contents nav a:nth-child(n + 5) {
    display: none;
  }
  .hero {
    padding-top: 35px;
  }
  .hero h1 {
    font-size: 42px;
    letter-spacing: -1.3px;
  }
  .hero-deck {
    font-size: 15px;
  }
  .hero-meta {
    margin-top: 21px;
    font-size: 10px;
  }
  .article-section {
    margin-top: 48px;
    padding-top: 29px;
    scroll-margin-top: 90px;
  }
  h2 {
    font-size: 25px;
  }
  .interactive-figure {
    padding: 21px;
  }
  .hero-axis {
    margin-right: 70px;
  }
  .signal-row {
    grid-template-columns: 35px 1fr 52px;
    gap: 8px;
  }
  .signal-label {
    font-size: 9px;
  }
  .visual-caption {
    margin-left: 43px;
  }
  .task-signal {
    margin-left: 20%;
  }
  .task-signal i {
    padding: 0 18px;
  }
  .architecture-flow {
    gap: 5px;
  }
  .flow-node {
    padding: 10px 5px;
  }
  .flow-node strong {
    font-size: 10px;
  }
  .flow-node small {
    font-size: 9px;
  }
  .flow-arrow {
    font-size: 13px;
  }
  .argument-chain {
    gap: 14px;
  }
  .design-routes {
    gap: 23px;
  }
  .benchmark-row {
    grid-template-columns: 105px 1fr;
    gap: 10px;
  }
  .benchmark-label {
    font-size: 10px;
  }
  .benchmark-axis {
    margin-left: 115px;
  }
  .article-footer {
    font-size: 9px;
  }
  .table-wrap table {
    font-size: 11px;
  }
  .table-wrap th,
  .table-wrap td {
    padding: 12px 9px;
  }
  main p {
    font-size: 14px;
  }
}
@media (max-width: 480px) {
  body {
    line-height: 1.8;
  }
  .site-header {
    padding: 0 18px;
  }
  .brand b {
    display: none;
  }
  .site-header nav {
    font-size: 11px;
    gap: 15px;
  }
  .page-layout {
    padding: 0 19px;
  }
  .hero {
    padding-top: 29px;
  }
  .hero > .eyebrow {
    font-size: 8px;
    letter-spacing: 1px;
  }
  .hero h1 {
    font-size: 35px;
    line-height: 1.3;
    margin-top: 15px;
  }
  .hero-deck {
    font-size: 14px;
  }
  .hero-meta {
    gap: 4px 13px;
    margin-bottom: 25px;
  }
  .hero-visual {
    margin-bottom: 25px;
  }
  .hero-axis {
    margin: 0 50px 14px 42px;
    font-size: 9px;
  }
  .lead {
    font-size: 17px;
  }
  .three-concepts {
    grid-template-columns: 1fr;
    gap: 18px;
    margin: 25px 0;
  }
  .three-concepts > div {
    display: grid;
    grid-template-columns: 95px 1fr;
    gap: 10px;
  }
  .three-concepts h3 {
    font-size: 13px;
    margin: 0;
  }
  .three-concepts p {
    font-size: 11px;
  }
  .interactive-figure {
    padding: 17px 14px;
    margin: 23px -3px;
  }
  .figure-heading {
    gap: 8px;
  }
  .figure-heading h3 {
    font-size: 17px;
    margin-bottom: 18px;
  }
  .figure-label {
    font-size: 9px;
  }
  .evidence-tag {
    font-size: 8px;
    padding: 4px 5px;
  }
  .segmented {
    margin-bottom: 20px;
    width: 100%;
  }
  .segmented button {
    padding: 7px 8px;
    flex: 1;
    font-size: 11px;
  }
  .architecture-flow {
    flex-direction: column;
    justify-content: center;
    gap: 7px;
  }
  .flow-node {
    flex: none;
    width: 100%;
    padding: 8px 10px;
  }
  .flow-node strong {
    font-size: 12px;
  }
  .flow-node small {
    font-size: 10px;
  }
  .architecture-flow .flow-arrow {
    font-size: 15px;
    line-height: 1;
    transform: rotate(90deg);
  }
  .architecture-detail {
    margin-top: 20px;
    min-height: 150px;
  }
  .architecture-detail p {
    font-size: 12px;
  }
  .time-vocabulary {
    grid-template-columns: 1fr 1fr;
    gap: 16px 20px;
  }
  .time-vocabulary span {
    font-size: 12px;
  }
  .time-vocabulary p {
    font-size: 11px;
  }
  .lab-controls {
    grid-template-columns: 1fr;
    gap: 12px;
    margin-top: 20px;
  }
  .lab-controls label {
    font-size: 11px;
  }
  .lab-stats {
    gap: 7px;
  }
  .lab-stats span {
    font-size: 9px;
    min-height: 30px;
  }
  .lab-stats strong {
    font-size: 20px;
  }
  .queue-chart {
    height: 242px;
  }
  .queue-row {
    margin-left: 32px;
  }
  .queue-ticks {
    left: 32px;
    font-size: 8px;
  }
  .queue-label {
    font-size: 8px;
    right: calc(100% + 8px);
  }
  .chart-legend {
    gap: 10px;
    font-size: 9px;
  }
  .latency-path {
    flex-wrap: wrap;
    gap: 6px;
  }
  .latency-path span {
    flex: 0 0 calc(50% - 13px);
    font-size: 10px;
    min-height: 58px;
  }
  .latency-path b:nth-child(4) {
    visibility: hidden;
    width: 0;
  }
  .latency-path b {
    font-size: 12px;
  }
  .benchmark-row {
    grid-template-columns: 81px 1fr;
    gap: 8px;
  }
  .benchmark-label {
    font-size: 9px;
  }
  .benchmark-value {
    font-size: 8px;
    left: calc(100% + 5px);
  }
  .benchmark-tracks {
    padding-right: 36px;
  }
  .benchmark-axis {
    margin-left: 89px;
    margin-right: 36px;
    font-size: 8px;
  }
  .argument-chain {
    flex-direction: column;
    gap: 8px;
  }
  .argument-chain > div {
    display: grid;
    grid-template-columns: 40px 1fr;
    gap: 12px;
    align-items: center;
    padding: 10px 0;
  }
  .argument-chain strong {
    margin: 0;
    font-size: 11px;
  }
  .design-routes {
    grid-template-columns: 1fr;
    gap: 17px;
  }
  .design-routes h3 {
    font-size: 16px;
  }
  .design-routes p {
    font-size: 12px;
  }
  .training-steps li {
    gap: 16px;
  }
  .training-steps li > span {
    font-size: 20px;
    min-width: 25px;
  }
  .training-steps h3 {
    font-size: 15px;
  }
  .training-steps p {
    font-size: 12px;
  }
  .evaluation-equation strong {
    font-size: 14px;
  }
  .checklist {
    font-size: 13px;
    padding-left: 16px;
  }
  .scenario-list summary {
    font-size: 13px;
  }
  .scenario-list p {
    margin-left: 28px;
    font-size: 12px;
  }
  .scenario-list summary span {
    margin-right: 13px;
  }
  .claim-template {
    padding: 17px;
  }
  .claim-template p {
    font-size: 13px;
  }
  h2 {
    font-size: 23px;
  }
  h3 {
    font-size: 17px;
  }
  .source-list a {
    font-size: 12px;
  }
  .source-list span {
    font-size: 10px;
  }
  .article-footer {
    display: block;
  }
  .article-footer > div {
    margin: 15px 0;
    gap: 18px;
  }
  .article-footer small {
    display: block;
  }
}
@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  *,
  *::before,
  *::after {
    transition: none !important;
    animation: none !important;
  }
}
@media print {
  .site-header,
  .contents,
  .lab-controls,
  .lab-presets,
  #theme-toggle {
    display: none;
  }
  .page-layout {
    display: block;
    padding: 0;
  }
  .article-section {
    break-inside: auto;
  }
  .interactive-figure,
  .training-steps li {
    break-inside: avoid;
  }
  body {
    background: #fff;
    color: #111;
  }
  .table-wrap {
    overflow: visible;
  }
  .table-wrap table {
    min-width: 0;
  }
  a {
    text-decoration: underline;
  }
}