@font-face {
  font-family: "Noto Sans SC";
  src: url("./fonts/noto-sans-sc-900.woff2") format("woff2");
  font-style: normal;
  font-weight: 400;
  font-display: swap;
}

@font-face {
  font-family: "Noto Sans SC";
  src: url("./fonts/noto-sans-sc-900.woff2") format("woff2");
  font-style: normal;
  font-weight: 700;
  font-display: swap;
}

@font-face {
  font-family: "Noto Sans SC";
  src: url("./fonts/noto-sans-sc-900.woff2") format("woff2");
  font-style: normal;
  font-weight: 900;
  font-display: swap;
}

@font-face {
  font-family: "JetBrains Mono";
  src: url("./fonts/jetbrains-mono-400.woff2") format("woff2");
  font-style: normal;
  font-weight: 400;
  font-display: swap;
}

@font-face {
  font-family: "JetBrains Mono";
  src: url("./fonts/jetbrains-mono-400.woff2") format("woff2");
  font-style: normal;
  font-weight: 700;
  font-display: swap;
}

:root {
  color-scheme: light;
  --paper: #f5f1e8;
  --surface: #ffffff;
  --ink: #101319;
  --muted: #595d66;
  --line: #dcd5c6;
  --line-strong: #aaa18f;
  --accent: #2240f0;
  --accent-deep: #1935b6;
  --accent-wash: #e8ecff;
  --signal: #ff4444;
  --terminal: #0d1117;
  --terminal-line: #30363d;
  --terminal-ok: #3fb950;
  --focus: #2240f0;
  --content: 78rem;
  --header-offset: 5.5rem;
  --radius: 2px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--header-offset);
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: Inter, "Noto Sans SC", "PingFang SC", "Microsoft YaHei", ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.6;
}

html[lang="zh-CN"] body {
  font-family: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", Inter, ui-sans-serif, system-ui, sans-serif;
}

body::selection {
  background: var(--accent);
  color: var(--surface);
}

a {
  color: var(--accent-deep);
  text-decoration-thickness: 0.08em;
  text-underline-offset: 0.18em;
}

a:hover {
  color: var(--accent);
}

:focus-visible {
  outline: 3px solid var(--focus);
  outline-offset: 4px;
  border-radius: 0.15rem;
}

code,
pre {
  font-family: "JetBrains Mono", "SFMono-Regular", Consolas, "Liberation Mono", monospace;
  font-variant-ligatures: none;
}

code {
  overflow-wrap: anywhere;
}

img {
  display: block;
  max-width: 100%;
}

h1,
h2,
h3,
p {
  text-wrap: pretty;
}

.skip-link {
  position: fixed;
  z-index: 100;
  top: 0.75rem;
  left: 0.75rem;
  padding: 0.7rem 1rem;
  background: var(--ink);
  color: var(--surface);
  border-radius: var(--radius);
  transform: translateY(-150%);
}

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

.site-header {
  position: sticky;
  z-index: 20;
  top: 0;
  background: rgba(245, 241, 232, 0.96);
  border-bottom: 1px solid var(--line);
}

.header-inner {
  width: min(calc(100% - 2rem), var(--content));
  min-height: 4.5rem;
  margin: 0 auto;
  display: flex;
  align-items: center;
  gap: 1rem;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  color: var(--ink);
  font-weight: 850;
  letter-spacing: -0.025em;
  text-decoration: none;
}

.brand-mark {
  display: grid;
  place-items: center;
  width: 2rem;
  height: 2rem;
  background: var(--ink);
  color: var(--surface);
  border-radius: var(--radius);
  font-family: "JetBrains Mono", "SFMono-Regular", Consolas, monospace;
  font-size: 0.92rem;
}

.release-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.42rem;
  padding: 0.28rem 0.58rem;
  background: var(--accent-wash);
  color: var(--accent-deep);
  border: 1px solid #aebaff;
  border-radius: var(--radius);
  font-family: "JetBrains Mono", "SFMono-Regular", Consolas, monospace;
  font-size: 0.72rem;
  font-weight: 750;
  text-decoration: none;
  white-space: nowrap;
}

.release-pill > span {
  width: 0.42rem;
  height: 0.42rem;
  background: var(--accent);
  border-radius: 0;
}

.site-header nav,
footer nav {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.4rem 1.15rem;
}

.site-header nav {
  margin-left: auto;
}

.site-header nav a,
footer nav a {
  color: var(--ink);
  font-size: 0.88rem;
  font-weight: 720;
  text-decoration: none;
}

.language-switch {
  display: inline-flex;
  min-height: 2.75rem;
  align-items: center;
  gap: 0.32rem;
  padding-inline: 0.5rem;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  font-family: "JetBrains Mono", "SFMono-Regular", Consolas, monospace;
  font-size: 0.75rem;
}

.language-switch a,
.language-switch strong {
  font-size: inherit;
  font-weight: 800;
}

.language-switch a {
  color: var(--muted);
}

.language-switch strong {
  color: var(--ink);
  box-shadow: inset 0 -2px 0 var(--accent);
}

.site-header nav a:hover,
footer nav a:hover {
  color: var(--accent);
}

.site-header .nav-github {
  padding: 0.42rem 0.68rem;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
}

main {
  display: block;
}

.hero,
.section,
footer {
  width: min(calc(100% - 2rem), var(--content));
  margin-inline: auto;
}

.hero {
  min-height: calc(100vh - 4.5rem);
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(22rem, 0.8fr);
  align-items: center;
  gap: clamp(3rem, 7vw, 7rem);
  padding-block: clamp(4.5rem, 9vw, 8rem);
}

.eyebrow,
.panel-label,
.workflow-kicker {
  margin: 0 0 1rem;
  color: var(--accent-deep);
  font-size: 0.76rem;
  font-weight: 850;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

h1 {
  max-width: 12ch;
  margin: 0;
  font-size: clamp(3.5rem, 6.9vw, 6.8rem);
  font-weight: 900;
  line-height: 0.93;
  letter-spacing: -0.068em;
}

html[lang="zh-CN"] h1 {
  max-width: none;
  font-size: clamp(3.4rem, 5vw, 5.2rem);
  line-height: 1.08;
  letter-spacing: 0;
}

.hero-title-line {
  display: block;
}

.hero-lede {
  max-width: 46rem;
  margin: 2rem 0 0;
  color: var(--muted);
  font-size: clamp(1.08rem, 1.7vw, 1.28rem);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 2rem;
}

.button {
  display: inline-flex;
  min-height: 3rem;
  align-items: center;
  justify-content: center;
  padding: 0.72rem 1.05rem;
  border: 2px solid var(--ink);
  border-radius: var(--radius);
  font-weight: 800;
  text-decoration: none;
}

.button-primary {
  background: var(--ink);
  color: var(--surface);
}

.button-primary:hover {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--surface);
}

.button-secondary {
  background: transparent;
  color: var(--ink);
}

.button-secondary:hover {
  background: var(--surface);
  color: var(--accent-deep);
}

.button-light {
  background: var(--surface);
  border-color: var(--surface);
  color: var(--ink);
}

.button-light:hover {
  background: var(--accent-wash);
  border-color: var(--accent-wash);
  color: var(--accent-deep);
}

.proof-strip {
  display: flex;
  flex-wrap: wrap;
  gap: 1.5rem 2.2rem;
  margin: 2.5rem 0 0;
  padding: 1.2rem 0 0;
  border-top: 1px solid var(--line);
  list-style: none;
}

.proof-strip li {
  display: grid;
}

.proof-strip strong {
  font-family: "JetBrains Mono", "SFMono-Regular", Consolas, monospace;
  font-size: 1.12rem;
  line-height: 1.2;
}

.proof-strip span {
  color: var(--muted);
  font-size: 0.79rem;
}

.proof-strip a {
  color: var(--ink);
  text-decoration: none;
}

.proof-strip a:hover {
  color: var(--accent);
}

.quickstart-panel {
  overflow: hidden;
  max-width: 42rem;
  justify-self: end;
  background: var(--terminal);
  color: var(--surface);
  border: 1px solid var(--terminal-line);
  border-radius: var(--radius);
}

.panel-topline,
.console-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 3rem;
  padding: 0.65rem 1rem;
  border-bottom: 1px solid var(--terminal-line);
  color: #b6bac4;
  font-family: "JetBrains Mono", "SFMono-Regular", Consolas, monospace;
  font-size: 0.76rem;
}

.panel-topline a {
  color: #aebaff;
}

.quickstart-command {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: center;
  gap: 0.7rem;
  padding: 1rem;
  border-bottom: 1px solid var(--terminal-line);
}

.quickstart-command .prompt {
  color: #8d99ff;
  font-family: "JetBrains Mono", "SFMono-Regular", Consolas, monospace;
  font-weight: 850;
}

.quickstart-command code {
  color: #f6f7fb;
  font-size: 0.78rem;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.copy-button {
  min-height: 2.75rem;
  padding: 0.38rem 0.65rem;
  background: transparent;
  color: #d9dce5;
  border: 1px solid #555963;
  border-radius: var(--radius);
  font: inherit;
  font-size: 0.73rem;
  font-weight: 800;
  cursor: pointer;
}

.copy-button:hover {
  background: #242731;
  border-color: #8d99ff;
}

.js-only {
  display: none;
}

.js .js-only {
  display: inline-flex;
}

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

.quickstart-panel .panel-label {
  margin: 0;
  padding: 1.45rem 1.2rem 0.5rem;
  color: #8d99ff;
}

.job-list {
  margin: 0;
  padding: 0 1.2rem 1.2rem;
  list-style: none;
}

.job-list li + li {
  border-top: 1px solid var(--terminal-line);
}

.job-list a {
  display: grid;
  grid-template-columns: 2rem 1fr;
  gap: 0 0.65rem;
  padding: 1.05rem 0;
  color: var(--surface);
  text-decoration: none;
}

.job-list a > span {
  grid-row: 1 / 3;
  color: #8d99ff;
  font-family: "JetBrains Mono", "SFMono-Regular", Consolas, monospace;
  font-size: 0.72rem;
}

.job-list strong {
  font-size: 0.98rem;
}

.job-list small {
  color: #989daa;
  font-family: "JetBrains Mono", "SFMono-Regular", Consolas, monospace;
}

.section {
  padding-block: clamp(5rem, 9vw, 8.5rem);
  scroll-margin-top: var(--header-offset);
  border-top: 1px solid var(--line);
}

.section-heading {
  max-width: 52rem;
  margin-bottom: clamp(2.5rem, 5vw, 4.5rem);
}

.split-heading {
  max-width: none;
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(19rem, 0.85fr);
  gap: clamp(2rem, 8vw, 8rem);
  align-items: end;
}

.section-heading h2,
.install-intro h2,
.trust-section h2,
.contribute-section h2 {
  margin: 0;
  font-size: clamp(2.5rem, 5.4vw, 5rem);
  font-weight: 900;
  line-height: 0.98;
  letter-spacing: -0.058em;
}

html[lang="zh-CN"] .section-heading h2,
html[lang="zh-CN"] .install-intro h2,
html[lang="zh-CN"] .trust-section h2,
html[lang="zh-CN"] .contribute-section h2 {
  line-height: 1.05;
  letter-spacing: 0;
}

.section-heading > p,
.split-heading > p,
.install-intro > p,
.trust-section p,
.contribute-section > p {
  color: var(--muted);
  font-size: 1.04rem;
}

.workflow-list {
  border-top: 1px solid var(--ink);
}

.workflow-row {
  display: grid;
  grid-template-columns: 5rem minmax(0, 1.35fr) minmax(17rem, 0.65fr);
  gap: clamp(1.25rem, 4vw, 4rem);
  padding: clamp(2rem, 4vw, 3.5rem) 0;
  border-bottom: 1px solid var(--line-strong);
}

.workflow-number {
  color: var(--accent);
  font-family: "JetBrains Mono", "SFMono-Regular", Consolas, monospace;
  font-size: clamp(2rem, 4vw, 3.5rem);
  font-weight: 850;
  line-height: 0.9;
}

.workflow-kicker {
  margin-bottom: 0.35rem;
}

.workflow-main h3 {
  margin: 0;
  font-size: clamp(1.9rem, 3.5vw, 3.3rem);
  line-height: 1;
  letter-spacing: -0.045em;
}

.workflow-main > p:not(.workflow-kicker) {
  max-width: 46rem;
  color: var(--muted);
}

.workflow-command {
  display: grid;
  width: 100%;
  max-width: 46rem;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: center;
  gap: 0.65rem;
  margin-top: 1.25rem;
  padding: 0.55rem 0.55rem 0.55rem 0.8rem;
  background: var(--surface);
  border: 1px solid var(--line);
  color: var(--ink);
}

.workflow-command > span {
  color: var(--accent);
  font-family: "JetBrains Mono", "SFMono-Regular", Consolas, monospace;
  font-weight: 850;
}

.workflow-command code {
  min-width: 0;
  font-size: 0.8rem;
  overflow-wrap: anywhere;
}

.workflow-command .copy-button {
  min-height: 2.5rem;
  color: var(--ink);
  border-color: var(--line-strong);
}

.workflow-command .copy-button:hover {
  background: var(--accent-wash);
  border-color: var(--accent);
}

.workflow-output {
  align-self: stretch;
  display: grid;
  grid-template-columns: 3.3rem 1fr;
  align-content: start;
  gap: 0.25rem 0.8rem;
  padding-left: 1.5rem;
  border-left: 1px solid var(--line);
}

.workflow-output > span {
  color: var(--muted);
  font-family: "JetBrains Mono", "SFMono-Regular", Consolas, monospace;
  font-size: 0.68rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.workflow-output p {
  margin: -0.15rem 0 1rem;
  font-size: 0.92rem;
}

.workflow-output a,
.text-link {
  width: fit-content;
  font-weight: 800;
}

.workflow-output a {
  grid-column: 1 / -1;
  margin-top: auto;
}

.install-section {
  display: grid;
  grid-template-columns: minmax(18rem, 0.9fr) minmax(26rem, 1.1fr);
  gap: clamp(2.5rem, 8vw, 8rem);
  align-items: start;
}

.install-intro {
  position: sticky;
  top: 7rem;
}

.install-intro > p {
  max-width: 32rem;
}

.install-console {
  overflow: hidden;
  background: var(--terminal);
  color: var(--surface);
  border: 1px solid var(--terminal-line);
  border-radius: var(--radius);
}

.console-header {
  min-height: 3.2rem;
}

.install-console pre {
  margin: 0;
  padding: clamp(1.4rem, 4vw, 2.2rem);
  overflow-x: auto;
  color: #f4f5f8;
  font-size: clamp(0.78rem, 1.3vw, 0.94rem);
  line-height: 1.9;
}

.console-result {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  padding: 0.85rem 1.2rem;
  background: #102619;
  border-top: 1px solid #245532;
  color: var(--terminal-ok);
}

.console-result p {
  margin: 0;
}

.console-result code {
  color: var(--surface);
}

.first-run {
  display: grid;
  gap: 0.55rem;
  padding: 1.2rem;
  border-top: 1px solid var(--terminal-line);
}

.first-run span {
  color: #989daa;
  font-family: "JetBrains Mono", "SFMono-Regular", Consolas, monospace;
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.first-run code {
  color: #dce1ff;
}

.install-notes {
  grid-column: 2;
  color: var(--muted);
}

.install-notes p {
  margin: 0.5rem 0;
}

.install-notes code,
.evidence-callout code {
  color: var(--ink);
}

.artifact-gallery {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
  margin-bottom: clamp(3rem, 6vw, 5.5rem);
}

.artifact-gallery figure {
  margin: 0;
  background: var(--surface);
  border: 1px solid var(--line);
}

.artifact-gallery img {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  border-bottom: 1px solid var(--line);
}

.artifact-gallery figcaption {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  min-height: 3.1rem;
  padding: 0.65rem 0.85rem;
}

.artifact-gallery figcaption span {
  font-weight: 800;
}

.artifact-gallery figcaption a {
  font-size: 0.82rem;
  font-weight: 750;
}

.artifact-index {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  margin: -2rem 0 clamp(3rem, 6vw, 5.5rem);
  border-top: 1px solid var(--ink);
  border-bottom: 1px solid var(--line);
}

.artifact-index article {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 0.9rem 1rem;
  padding: 1.35rem 1.5rem 1.5rem 0;
}

.artifact-index article + article {
  padding-left: 1.5rem;
  border-left: 1px solid var(--line);
}

.artifact-index span {
  grid-row: 1 / 3;
  color: var(--accent);
  font-family: "JetBrains Mono", "SFMono-Regular", Consolas, monospace;
  font-size: 0.72rem;
  font-weight: 850;
}

.artifact-index h3 {
  margin: 0;
  font-size: 1.02rem;
}

.artifact-index p {
  margin: 0;
  color: var(--muted);
  font-size: 0.9rem;
}

.evidence-ledger {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  border-top: 1px solid var(--ink);
}

.evidence-ledger article {
  padding: 1.35rem 1.35rem 1.5rem 0;
  border-bottom: 1px solid var(--line);
}

.evidence-ledger article:nth-child(odd) {
  padding-right: 2rem;
  border-right: 1px solid var(--line);
}

.evidence-ledger article:nth-child(even) {
  padding-left: 2rem;
}

.evidence-ledger h3 {
  margin: 0 0 1rem;
  font-size: 1.05rem;
}

.evidence-ledger p {
  margin: 0.35rem 0 0;
  color: var(--muted);
}

.evidence-ledger span {
  display: inline-block;
  min-width: 4.5rem;
  color: var(--ink);
  font-family: "JetBrains Mono", "SFMono-Regular", Consolas, monospace;
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.evidence-ledger article p:last-child span {
  color: var(--signal);
}

.evidence-callout {
  display: grid;
  grid-template-columns: 16rem 1fr;
  gap: 1rem;
  margin-top: 1rem;
  padding: 1.15rem;
  background: var(--terminal);
  border: 1px solid var(--terminal-line);
  color: var(--surface);
}

.evidence-command {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: center;
  gap: 0.65rem;
}

.evidence-command > span {
  color: var(--terminal-ok);
  font-family: "JetBrains Mono", "SFMono-Regular", Consolas, monospace;
  font-weight: 850;
}

.evidence-callout code {
  overflow-wrap: anywhere;
  color: var(--surface);
  font-size: 0.76rem;
}

.skill-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--ink);
  list-style: none;
}

.skill-grid li {
  border-bottom: 1px solid var(--line);
}

.skill-grid li:nth-child(odd) {
  border-right: 1px solid var(--line);
}

.skill-grid a {
  display: grid;
  grid-template-columns: 2.2rem minmax(8rem, 0.8fr) minmax(10rem, 1.2fr) auto;
  gap: 0.8rem;
  align-items: center;
  min-height: 5.2rem;
  padding: 1rem 1.1rem;
  color: var(--ink);
  text-decoration: none;
}

.skill-grid a:hover {
  background: var(--surface);
  color: var(--accent-deep);
}

.skill-index {
  color: var(--muted);
  font-family: "JetBrains Mono", "SFMono-Regular", Consolas, monospace;
  font-size: 0.7rem;
}

.skill-grid strong {
  font-family: "JetBrains Mono", "SFMono-Regular", Consolas, monospace;
  font-size: 0.87rem;
}

.skill-grid a > span:not(.skill-index) {
  color: var(--muted);
  font-size: 0.85rem;
}

.skill-grid em {
  padding: 0.14rem 0.45rem;
  background: var(--accent-wash);
  color: var(--accent-deep);
  border: 1px solid #c5ceff;
  border-radius: var(--radius);
  font-size: 0.65rem;
  font-style: normal;
  font-weight: 850;
  text-transform: uppercase;
}

.trust-section {
  width: 100%;
  max-width: none;
  display: grid;
  grid-template-columns:
    minmax(1rem, 1fr)
    minmax(0, calc(var(--content) * 0.44))
    minmax(0, calc(var(--content) * 0.56))
    minmax(1rem, 1fr);
  gap: clamp(2rem, 7vw, 7rem);
  padding-block: clamp(5rem, 9vw, 8rem);
  background: var(--ink);
  color: var(--surface);
  border-top: 0;
}

.trust-section > div:first-child {
  grid-column: 2;
}

.trust-section > div:last-child {
  grid-column: 3;
}

.trust-section .eyebrow {
  color: #9faffe;
}

.trust-section h2 {
  color: var(--surface);
}

.trust-section p {
  color: #bdc0c8;
}

.trust-section p a {
  color: #b9c4ff;
}

.trust-links {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 1rem 1.4rem;
  margin-top: 1.5rem;
}

.capability-preview {
  display: grid;
  gap: 0;
  margin: 1.6rem 0 0;
  padding: 0;
  border-top: 1px solid #3b404b;
  list-style: none;
}

.capability-preview li {
  display: grid;
  grid-template-columns: minmax(9rem, 1fr) auto;
  gap: 1rem;
  align-items: center;
  min-height: 3.1rem;
  border-bottom: 1px solid #3b404b;
}

.capability-preview code {
  color: var(--surface);
}

.capability-preview span {
  color: #b9c4ff;
  font-family: "JetBrains Mono", "SFMono-Regular", Consolas, monospace;
  font-size: 0.7rem;
  letter-spacing: 0.04em;
}

.capability-note {
  margin: 0.75rem 0 0;
  color: #bdc0c8;
  font-family: "JetBrains Mono", "SFMono-Regular", Consolas, monospace;
  font-size: 0.7rem;
}

.capability-note sup {
  color: var(--signal);
  font-weight: 850;
}

.trust-section .text-link {
  color: #cfd6ff;
}

.faq-section {
  display: grid;
  grid-template-columns: minmax(15rem, 0.65fr) minmax(0, 1.35fr);
  gap: clamp(2rem, 8vw, 8rem);
}

.faq-list {
  counter-reset: faq;
  border-top: 1px solid var(--ink);
}

.faq-list details {
  counter-increment: faq;
  border-bottom: 1px solid var(--line-strong);
}

.faq-list summary {
  position: relative;
  padding: 1.25rem 2.5rem 1.25rem 0;
  cursor: pointer;
  font-size: 1.02rem;
  font-weight: 800;
  list-style: none;
}

.faq-list summary::-webkit-details-marker {
  display: none;
}

.faq-list summary::before {
  content: "Q" counter(faq) " · ";
  color: var(--accent);
  font-family: "JetBrains Mono", "SFMono-Regular", Consolas, monospace;
  font-size: 0.76rem;
}

.faq-list summary::after {
  content: "+";
  position: absolute;
  right: 0;
  color: var(--accent);
  font-family: "JetBrains Mono", "SFMono-Regular", Consolas, monospace;
  font-size: 1.35rem;
  line-height: 1;
}

.faq-list details[open] summary::after {
  content: "−";
}

.faq-list details p {
  max-width: 48rem;
  margin-top: 0;
  padding-bottom: 1.25rem;
  color: var(--muted);
}

.contribute-section {
  max-width: 64rem;
  text-align: center;
}

.contribute-section > p {
  max-width: 44rem;
  margin-inline: auto;
}

.contribute-section .hero-actions {
  justify-content: center;
}

footer {
  min-height: 13rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
  margin-top: clamp(3rem, 6vw, 6rem);
  border-top: 1px solid var(--line);
}

.footer-brand {
  display: grid;
}

.footer-brand strong {
  font-size: 1.1rem;
}

.footer-brand p {
  margin: 0.18rem 0 0.35rem;
  color: var(--muted);
}

.footer-brand a {
  width: fit-content;
  font-family: "JetBrains Mono", "SFMono-Regular", Consolas, monospace;
  font-size: 0.76rem;
}

.footer-note {
  max-width: 42rem;
  color: var(--muted);
  font-size: 0.78rem;
}

@media (max-width: 68rem) {
  :root {
    --header-offset: 7.5rem;
  }

  .header-inner {
    align-items: flex-start;
    flex-wrap: wrap;
    padding-block: 0.85rem;
  }

  .site-header nav {
    width: 100%;
    order: 3;
    margin-left: 0;
    flex-wrap: nowrap;
    overflow-x: auto;
    overscroll-behavior-inline: contain;
    scrollbar-width: thin;
  }

  .hero {
    min-height: auto;
    grid-template-columns: 1fr;
  }

  .hero-copy {
    max-width: 55rem;
  }

  .quickstart-panel {
    max-width: 46rem;
    justify-self: start;
  }

  .workflow-row {
    grid-template-columns: 3rem minmax(0, 1fr);
  }

  .workflow-output {
    grid-column: 2;
    margin-top: 0.5rem;
  }

  .skill-grid a {
    grid-template-columns: 2rem minmax(8rem, 0.9fr) minmax(9rem, 1.1fr) auto;
  }
}

@media (max-width: 50rem) {
  .release-pill {
    display: none;
  }

  .header-inner {
    align-items: center;
    gap: 0.55rem;
    padding-block: 0.6rem;
  }

  .site-header nav {
    display: flex;
    gap: 0.4rem;
    padding-bottom: 0.15rem;
  }

  .site-header nav a {
    flex: 0 0 auto;
    min-height: 2.75rem;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.3rem 0.45rem;
    border: 1px solid var(--line);
    font-size: 0.75rem;
    text-align: center;
  }

  .site-header .nav-github {
    padding: 0.3rem 0.45rem;
    border: 1px solid var(--line);
  }

  .language-switch {
    flex: 0 0 auto;
    min-height: 2.75rem;
    justify-content: center;
  }

  .hero {
    padding-block: 3rem 5rem;
  }

  h1 {
    font-size: clamp(3.1rem, 14vw, 4.6rem);
    line-height: 0.94;
  }

  html[lang="zh-CN"] h1 {
    max-width: none;
    font-size: clamp(2.05rem, 10.2vw, 4.1rem);
    line-height: 1.1;
    letter-spacing: 0;
  }

  html[lang="zh-CN"] .hero-title-line {
    white-space: nowrap;
  }

  .proof-strip {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
  }

  .quickstart-command {
    grid-template-columns: auto minmax(0, 1fr);
  }

  .quickstart-command .copy-button {
    grid-column: 1 / -1;
    width: fit-content;
  }

  .workflow-command {
    grid-template-columns: auto minmax(0, 1fr);
  }

  .workflow-command .copy-button {
    grid-column: 1 / -1;
    width: fit-content;
  }

  .split-heading,
  .install-section,
  .faq-section {
    grid-template-columns: 1fr;
  }

  .section-heading h2,
  .install-intro h2,
  .trust-section h2,
  .contribute-section h2 {
    font-size: clamp(2.5rem, 12vw, 4rem);
  }

  .workflow-row {
    grid-template-columns: 2.25rem minmax(0, 1fr);
    gap: 1rem;
  }

  .workflow-output {
    padding-left: 0;
    border-left: 0;
  }

  .install-intro {
    position: static;
  }

  .install-notes {
    grid-column: 1;
  }

  .artifact-gallery,
  .artifact-index,
  .skill-grid,
  .evidence-ledger {
    grid-template-columns: 1fr;
  }

  .artifact-index {
    margin-top: -1.5rem;
  }

  .artifact-index article,
  .artifact-index article + article {
    padding-inline: 0;
    border-left: 0;
  }

  .artifact-index article + article {
    border-top: 1px solid var(--line);
  }

  .evidence-ledger article,
  .evidence-ledger article:nth-child(odd),
  .evidence-ledger article:nth-child(even) {
    padding-inline: 0;
    border-right: 0;
  }

  .skill-grid li:nth-child(odd) {
    border-right: 0;
  }

  .skill-grid a {
    grid-template-columns: 2rem 1fr;
    gap: 0.25rem 0.8rem;
  }

  .skill-grid a > span:not(.skill-index) {
    grid-column: 2;
  }

  .skill-grid em {
    grid-column: 2;
    width: fit-content;
    margin-top: 0.35rem;
  }

  .trust-section {
    grid-template-columns: 1rem minmax(0, 1fr) 1rem;
    gap: 2rem 0;
  }

  .trust-section > div:first-child,
  .trust-section > div:last-child {
    grid-column: 2;
  }

  .evidence-callout {
    grid-template-columns: 1fr;
  }

  .evidence-command {
    grid-template-columns: auto minmax(0, 1fr);
  }

  .evidence-command .copy-button {
    grid-column: 1 / -1;
    width: fit-content;
  }

  footer {
    align-items: flex-start;
    flex-direction: column;
    justify-content: center;
    padding-block: 3rem;
  }
}

@media (max-width: 28rem) {
  .header-inner,
  .hero,
  .section,
  footer {
    width: min(calc(100% - 1.25rem), var(--content));
  }

  .language-switch {
    min-height: 2.75rem;
  }

  .workflow-row {
    grid-template-columns: 1fr;
  }

  .workflow-number,
  .workflow-output {
    grid-column: 1;
  }
}

/* Fable 5 final direction: technical weekly front page × workbench. */
:root {
  --header-offset: 6rem;
}

.site-header {
  min-height: calc(6rem - 1px);
  background-color: var(--ink);
  background-image: url("./assets/masthead-pixels.png");
  background-position: center;
  background-size: cover;
  border-bottom-color: var(--ink);
}

.header-inner {
  width: min(calc(100% - 3.5rem), 86rem);
  min-height: calc(6rem - 1px);
  gap: 1.25rem;
}

.brand {
  flex: 0 0 auto;
  color: var(--surface);
  font-size: 1.35rem;
  font-weight: 900;
}

.brand-mark {
  width: 2.65rem;
  height: 2.65rem;
  object-fit: cover;
  background: transparent;
}

.brand-meta {
  margin: 0;
  color: #c7cad2;
  font-family: "JetBrains Mono", "SFMono-Regular", Consolas, monospace;
  font-size: 0.7rem;
  letter-spacing: 0.035em;
  white-space: nowrap;
}

.brand-meta a {
  color: #8d99ff;
  text-decoration: none;
}

.site-header nav {
  flex-wrap: nowrap;
  gap: 0.35rem 1.25rem;
}

.site-header nav a {
  color: #f4f5f8;
  font-size: 0.82rem;
  white-space: nowrap;
}

.site-header nav a:hover {
  color: #8d99ff;
}

.site-header .language-switch {
  min-height: 2.55rem;
  border-color: #454a56;
  color: #aeb3bf;
}

.site-header .language-switch a {
  color: #aeb3bf;
}

.site-header .language-switch strong {
  color: var(--surface);
}

.site-header .nav-github {
  padding: 0.6rem 0.85rem;
  border-color: #9298a5;
}

.hero,
.section {
  width: min(calc(100% - 3.5rem), 86rem);
}

.hero {
  min-height: 0;
  grid-template-columns: minmax(0, 1.05fr) minmax(24rem, 0.95fr);
  align-items: start;
  gap: clamp(2.5rem, 6vw, 6rem);
  padding-block: clamp(3.5rem, 6vw, 4.75rem) 3rem;
}

.hero-copy {
  min-width: 0;
}

.eyebrow,
.panel-label,
.workflow-kicker {
  color: var(--accent);
  font-family: "JetBrains Mono", "SFMono-Regular", Consolas, monospace;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.035em;
  text-transform: none;
}

.hero .eyebrow {
  margin-bottom: 1.65rem;
}

h1,
html[lang="zh-CN"] h1 {
  max-width: 10ch;
  font-size: clamp(3.5rem, 5.2vw, 4.75rem);
  font-weight: 900;
  line-height: 1.06;
  letter-spacing: -0.045em;
}

html[lang="zh-CN"] h1 {
  max-width: none;
  letter-spacing: 0;
}

.hero-title-accent {
  color: var(--accent);
}

.hero-lede {
  max-width: 38em;
  margin-top: 1.5rem;
  color: #3f434b;
  font-size: clamp(1rem, 1.35vw, 1.16rem);
  line-height: 1.75;
}

.hero-actions {
  margin-top: 1.7rem;
}

.button {
  min-height: 3.15rem;
  padding-inline: 1.35rem;
}

.button-primary {
  background: var(--accent);
  border-color: var(--accent);
}

.button-secondary {
  background: transparent;
}

.proof-strip {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0;
  margin-top: 2.25rem;
  padding-top: 0;
  border-top: 0;
}

.proof-strip li {
  min-width: 0;
  grid-template-columns: 1fr;
  align-content: start;
  padding: 0 1rem;
  border-left: 1px solid var(--line-strong);
}

.proof-strip li:first-child {
  padding-left: 0;
  border-left: 0;
}

.proof-strip img {
  width: 1.15rem;
  height: 1.15rem;
  margin-bottom: 0.55rem;
  image-rendering: pixelated;
}

.proof-strip strong {
  font-size: 1.35rem;
  line-height: 1.1;
}

.proof-strip span {
  margin-top: 0.22rem;
  font-size: 0.72rem;
  line-height: 1.35;
}

.quickstart-panel {
  width: 100%;
  max-width: 38rem;
  margin-top: 3.25rem;
  border-color: var(--ink);
  box-shadow: none;
}

.panel-topline {
  min-height: 3.2rem;
  padding-inline: 1.25rem;
}

.quickstart-panel > .panel-label {
  padding: 1.5rem 1.35rem 0.55rem;
}

.quickstart-command {
  padding: 0.5rem 1.35rem 1.5rem;
  border-bottom: 1px solid var(--terminal-line);
}

.hero-example {
  padding: 1.45rem 1.35rem 1.2rem;
}

.hero-example .panel-label {
  padding: 0;
  margin-bottom: 0.9rem;
}

.hero-example > code {
  display: block;
  padding: 1rem;
  border: 1px solid #5a606b;
  color: #f4f5f8;
  font-size: 0.86rem;
  line-height: 1.75;
}

.terminal-cursor {
  margin: 0;
  padding: 0.95rem 1.35rem 1.35rem;
  color: #d9dce5;
  font-family: "JetBrains Mono", "SFMono-Regular", Consolas, monospace;
  font-size: 0.82rem;
}

.terminal-cursor span {
  color: #8d99ff;
  font-weight: 700;
}

.section {
  padding-block: clamp(3.5rem, 6vw, 6rem);
  border-top: 0;
}

.section-rail {
  grid-column: 1 / -1;
  display: grid;
  grid-template-columns: 0.75rem auto minmax(2rem, 1fr);
  gap: 0.8rem;
  align-items: center;
  margin-bottom: 2.2rem;
  color: var(--ink);
  font-family: "JetBrains Mono", "SFMono-Regular", Consolas, monospace;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.025em;
}

.section-rail img {
  width: 0.75rem;
  height: 0.75rem;
}

.section-rail i {
  height: 1px;
  background: var(--line-strong);
}

.section-heading {
  margin-bottom: clamp(2.5rem, 4vw, 3.75rem);
}

.section-heading h2,
.install-intro h2,
.trust-section h2 {
  font-size: clamp(2.45rem, 4.2vw, 4.25rem);
  line-height: 1.08;
  letter-spacing: -0.04em;
}

html[lang="zh-CN"] .section-heading h2,
html[lang="zh-CN"] .install-intro h2,
html[lang="zh-CN"] .trust-section h2 {
  line-height: 1.15;
}

.split-heading {
  grid-template-columns: minmax(0, 1.25fr) minmax(18rem, 0.75fr);
  gap: clamp(2rem, 7vw, 7rem);
}

.split-heading > p {
  max-width: 38em;
  line-height: 1.75;
}

.workflow-row {
  grid-template-columns: 4.5rem minmax(0, 1.35fr) minmax(17rem, 0.65fr);
  gap: clamp(1.25rem, 3vw, 3rem);
  padding-block: clamp(2rem, 3vw, 3rem);
}

.workflow-number {
  font-size: clamp(2.25rem, 3.5vw, 3rem);
}

.workflow-main h3 {
  font-size: clamp(1.85rem, 3vw, 2.8rem);
}

.workflow-main > p:not(.workflow-kicker) {
  line-height: 1.75;
}

.workflow-output {
  padding-left: 1.25rem;
}

.install-section {
  grid-template-columns: minmax(18rem, 0.8fr) minmax(28rem, 1.2fr);
  gap: clamp(2.5rem, 7vw, 7rem);
}

.install-intro {
  top: 8rem;
}

.artifact-gallery figure {
  border-color: var(--ink);
}

.artifact-gallery figcaption {
  font-family: "JetBrains Mono", "SFMono-Regular", Consolas, monospace;
  font-size: 0.74rem;
}

.trust-section {
  grid-template-columns:
    minmax(1.75rem, 1fr)
    minmax(0, calc(86rem * 0.44))
    minmax(0, calc(86rem * 0.56))
    minmax(1.75rem, 1fr);
  padding-block: clamp(3.5rem, 6vw, 5.5rem);
}

.trust-section > .section-rail {
  grid-column: 2 / 4;
  width: 100%;
  margin-bottom: 0;
  color: var(--surface);
}

.trust-section > div:nth-child(2) {
  grid-column: 2;
}

.trust-section > div:nth-child(3) {
  grid-column: 3;
}

.trust-section > div:first-child {
  grid-column: 2 / 4;
}

.section-rail-dark i {
  background: #4a4f5a;
}

.section-rail-dark img {
  border: 1px solid #626874;
}

.faq-section > .section-rail {
  grid-column: 1 / -1;
}

.contribute-section {
  max-width: none;
  display: grid;
  grid-template-columns: minmax(18rem, 0.75fr) minmax(0, 1fr) auto;
  gap: 2rem;
  align-items: center;
  padding-block: 2.25rem;
  border-top: 1px solid var(--ink);
  border-bottom: 1px solid var(--ink);
  text-align: left;
}

.contribute-section h2 {
  font-size: clamp(1.35rem, 2.1vw, 2rem);
  line-height: 1.25;
}

.contribute-section > p {
  margin: 0;
}

.contribute-section .hero-actions {
  justify-content: flex-end;
  margin-top: 0;
}

footer {
  width: 100%;
  max-width: none;
  min-height: 14rem;
  margin-top: 0;
  padding-inline: max(1.75rem, calc((100% - 86rem) / 2));
  background: var(--ink);
  color: var(--surface);
  border-top: 0;
}

.footer-brand p,
.footer-note {
  color: #b9bdc7;
}

footer nav a,
.footer-brand a {
  color: #c7d0ff;
}

@media (max-width: 74rem) {
  :root {
    --header-offset: 7.1rem;
  }

  .header-inner {
    align-items: center;
    flex-wrap: wrap;
    padding-block: 0.75rem;
  }

  .brand-meta {
    margin-left: auto;
  }

  .site-header nav {
    width: 100%;
    order: 3;
    margin-left: 0;
    overflow-x: auto;
    overscroll-behavior-inline: contain;
    scrollbar-width: thin;
  }

  .hero {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .hero-copy,
  .quickstart-panel {
    max-width: 58rem;
  }

  .quickstart-panel {
    margin-top: 0;
    justify-self: start;
  }
}

@media (max-width: 50rem) {
  :root {
    --header-offset: 7rem;
  }

  .site-header {
    min-height: 6.5rem;
  }

  .header-inner,
  .hero,
  .section {
    width: min(calc(100% - 1.5rem), 86rem);
  }

  .header-inner {
    min-height: 6.5rem;
    gap: 0.4rem 0.75rem;
    padding-block: 0.5rem;
  }

  .brand {
    font-size: 1.05rem;
  }

  .brand-mark {
    width: 2.2rem;
    height: 2.2rem;
  }

  .brand-meta {
    display: none;
  }

  .site-header nav {
    gap: 0.4rem;
    padding-bottom: 0;
  }

  .site-header nav a,
  .site-header .nav-github,
  .site-header .language-switch {
    min-height: 2.45rem;
    border-color: #454a56;
    color: #eef0f4;
  }

  .hero {
    padding-block: 2.65rem 2.75rem;
  }

  .hero .eyebrow {
    margin-bottom: 1.15rem;
    line-height: 1.55;
  }

  h1,
  html[lang="zh-CN"] h1 {
    max-width: none;
    font-size: clamp(2.4rem, 11.5vw, 3.25rem);
    line-height: 1.1;
  }

  .hero-lede {
    margin-top: 1.2rem;
    font-size: 0.98rem;
  }

  .hero-actions {
    display: grid;
    grid-template-columns: 1fr;
  }

  .proof-strip {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    row-gap: 1.25rem;
  }

  .proof-strip li:nth-child(3) {
    padding-left: 0;
    border-left: 0;
  }

  .quickstart-panel {
    width: 100%;
  }

  .quickstart-command {
    grid-template-columns: auto minmax(0, 1fr);
  }

  .quickstart-command .copy-button {
    grid-column: 1 / -1;
  }

  .section {
    padding-block: 3.5rem;
  }

  .section-rail {
    margin-bottom: 1.7rem;
  }

  .section-heading h2,
  .install-intro h2,
  .trust-section h2 {
    font-size: clamp(2.15rem, 10vw, 3rem);
  }

  .install-section,
  .faq-section,
  .split-heading {
    grid-template-columns: 1fr;
  }

  .trust-section {
    grid-template-columns: 1.25rem minmax(0, 1fr) 1.25rem;
    gap: 2rem 0;
  }

  .trust-section > .section-rail,
  .trust-section > div:first-child {
    grid-column: 2;
  }

  .trust-section > div:nth-child(2),
  .trust-section > div:nth-child(3) {
    grid-column: 2;
  }

  .contribute-section {
    grid-template-columns: 1fr;
    gap: 1rem;
  }

  .contribute-section .hero-actions {
    justify-content: start;
  }

  footer {
    padding-inline: 1.25rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
  }
}

@media (forced-colors: active) {
  .button,
  .copy-button,
  .release-pill,
  .nav-github {
    border: 1px solid ButtonText;
  }

  :focus-visible {
    outline: 3px solid Highlight;
  }
}