:root {
  --font-serif: "Spectral", "Songti SC", "Noto Serif CJK SC", STSong, serif;
  --font-sans:
    "IBM Plex Sans", -apple-system, BlinkMacSystemFont, "PingFang SC",
    "Microsoft YaHei", sans-serif;
  --ink: #15171c;
  --muted: #59616f;
  --line: #e0e3e8;
  --paper: #f7f8fa;
  --accent: #1c3d6e;
  --accent-hover: #16314f;
  --accent-wash: #e4eaf2;
  color-scheme: light;
}
* {
  box-sizing: border-box;
}
html {
  scroll-behavior: smooth;
  scroll-padding-top: 24px;
}
body {
  margin: 0;
  background: #fff;
  color: var(--ink);
  font: 16px/1.7 var(--font-sans);
}
a {
  color: inherit;
  text-decoration: none;
}
button,
input,
select,
textarea {
  font: inherit;
}
button,
a,
select,
summary {
  -webkit-tap-highlight-color: transparent;
}
button {
  cursor: pointer;
}
a,
button {
  transition:
    background 0.16s,
    border-color 0.16s,
    color 0.16s,
    transform 0.16s;
}
button:active,
.button:active {
  transform: translateY(1px);
}
a:focus-visible,
button:focus-visible,
summary:focus-visible,
select:focus-visible,
textarea:focus-visible {
  outline: 3px solid var(--accent);
  outline-offset: 4px;
}
p {
  margin: 0 0 16px;
}
h1,
h2,
h3 {
  margin: 0;
  font-family: var(--font-serif);
  font-weight: 600;
}
h1,
h2 {
  letter-spacing: -0.03em;
}
h2 {
  font-size: 40px;
  line-height: 1.4;
}
h3 {
  font-size: 23px;
  line-height: 1.5;
}
strong {
  font-weight: 500;
}
.wrap {
  max-width: 1280px;
  padding-left: 40px;
  padding-right: 40px;
  margin: auto;
}
.eyebrow {
  font-size: 11px;
  letter-spacing: 0.14em;
  font-weight: 500;
  line-height: 1.5;
  text-transform: uppercase;
}
.mono,
code {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
}
.accent {
  color: var(--accent);
}
.quiet {
  font-size: 13px;
  color: var(--muted);
}
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 12px 21px;
  font-size: 14px;
  font-weight: 500;
  line-height: 1.6;
  border: 1px solid transparent;
  border-radius: 8px;
  min-height: 48px;
  text-align: center;
}
.primary {
  background: var(--accent);
  color: white;
}
.primary:hover {
  background: var(--accent-hover);
}
.secondary {
  background: white;
  border-color: #cbd0d8;
}
.secondary:hover {
  background: var(--paper);
  border-color: #959eac;
}
.small {
  min-height: 38px;
  padding: 8px 14px;
  font-size: 12px;
}
.text-link {
  border: 0;
  border-bottom: 1px solid #b7c4d7;
  background: none;
  color: var(--accent);
  font-size: 13px;
  padding: 0 0 2px;
  cursor: pointer;
}
.text-link:hover {
  border-color: var(--accent);
}
.skip {
  position: absolute;
  top: -100px;
  left: 20px;
  background: white;
  padding: 12px;
  z-index: 100;
}
.skip:focus {
  top: 12px;
}
.header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 104px;
  gap: 30px;
  border-bottom: 1px solid var(--line);
}
.wordmark {
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.wordmark-main {
  font-size: 20px;
  font-weight: 600;
  letter-spacing: 0.03em;
  line-height: 1.2;
}
.wordmark-light {
  font-weight: 400;
  font-size: 15px;
  letter-spacing: 0.09em;
}
.wordmark-sub {
  font: 9px/1.5 var(--font-mono);
  letter-spacing: 0.15em;
  color: var(--muted);
}
.header nav {
  display: flex;
  gap: 32px;
  font-size: 13px;
  color: var(--muted);
  margin-left: auto;
  margin-right: 28px;
}
.header nav a:hover {
  color: var(--accent);
}
.header-actions {
  display: flex;
  align-items: center;
  gap: 20px;
}
.language {
  border: 0;
  background: transparent;
  font: 12px var(--font-mono);
  padding: 10px 4px;
  min-width: 30px;
}
.hero {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 68px;
  padding-top: 92px;
  padding-bottom: 88px;
  align-items: center;
}
.hero .eyebrow {
  color: var(--accent);
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 28px;
}
.release-tag {
  display: inline-block;
  border: 1px solid #c6d1df;
  background: var(--accent-wash);
  padding: 3px 8px;
  border-radius: 4px;
  color: var(--accent);
  font: 10px/1.7 var(--font-mono);
  letter-spacing: 0.06em;
  white-space: nowrap;
}
.hero h1 {
  font-size: clamp(40px, 4.2vw, 57px);
  line-height: 1.45;
  margin-bottom: 24px;
  white-space: nowrap;
}
.hero-audience {
  display: flex;
  align-items: baseline;
  flex-wrap: wrap;
  gap: 4px 16px;
  color: var(--accent);
  margin: 0 0 22px;
  line-height: 1.5;
}
.hero-audience strong {
  font-size: 22px;
  font-weight: 600;
  letter-spacing: 0.04em;
}
.hero-audience > span {
  font-size: 18px;
  font-weight: 500;
}
.hero-author {
  margin-top: 24px;
  padding-left: 16px;
  border-left: 2px solid var(--accent);
}
.author-name {
  margin: 0 0 3px;
  font-size: 18px;
  font-weight: 500;
  line-height: 1.5;
}
.author-name span {
  margin-left: 8px;
  font-family: var(--font-serif);
  font-weight: 500;
}
.author-name .author-prefix {
  margin-left: 0;
}
.author-role {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.7;
}
.hero-lead {
  font-size: 16px;
  line-height: 1.9;
  color: var(--muted);
  max-width: 490px;
}
.hero-buttons {
  display: flex;
  gap: 12px;
  margin-top: 26px;
}
.hero-note {
  font-size: 11px;
  color: var(--muted);
  margin: 17px 0 0;
}
.research-preview {
  background: white;
  border: 1px solid var(--line);
  border-radius: 12px;
  box-shadow: 0 8px 28px #15171c08;
  overflow: hidden;
}
.preview-top {
  padding: 19px 24px;
  border-bottom: 1px solid var(--line);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}
.preview-top .eyebrow {
  color: var(--muted);
  margin: 0;
  display: block;
  font-size: 10px;
  letter-spacing: 0.09em;
}
.preview-top .mono {
  color: #949ba7;
  margin-left: 5px;
}
.preview-label {
  font-size: 10px;
  color: var(--muted);
}
.preview-body {
  padding: 28px 26px 8px;
}
.preview-kind {
  font-size: 10px;
  color: var(--accent);
  letter-spacing: 0.08em;
  margin-bottom: 13px;
}
.preview-question {
  font-family: var(--font-serif);
  font-size: 22px;
  line-height: 1.65;
  padding-bottom: 27px;
  margin-bottom: 0;
  border-bottom: 1px solid var(--line);
}
.preview-line {
  display: flex;
  align-items: center;
  gap: 17px;
  padding: 18px 0;
  border-bottom: 1px solid var(--line);
}
.preview-line:last-child {
  border: 0;
}
.step-index {
  font: 12px/1.6 var(--font-mono);
  color: #747d8a;
}
.preview-line strong {
  font-size: 13px;
  display: block;
}
.preview-line small {
  display: block;
  font-size: 11px;
  color: var(--muted);
  margin-top: 3px;
}
.preview-arrow {
  color: #8b96a5;
  font-size: 17px;
  margin-left: auto;
}
.preview-footer {
  padding: 15px 24px;
  background: var(--paper);
  display: flex;
  justify-content: space-between;
  gap: 16px;
  font-size: 10px;
  color: var(--muted);
  border-top: 1px solid var(--line);
}
.preview-footer .mono {
  font-size: 9px;
  letter-spacing: 0.03em;
}
.facts-band {
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}
.facts {
  display: grid;
  grid-template-columns: 1fr 1.3fr 1.3fr;
  padding-top: 25px;
  padding-bottom: 25px;
}
.facts > div {
  display: flex;
  align-items: center;
  gap: 22px;
  border-right: 1px solid var(--line);
  padding-left: 40px;
}
.facts > div:first-child {
  padding-left: 0;
}
.facts > div:last-child {
  border: 0;
}
.fact-number {
  font-family: var(--font-serif);
  font-size: 32px;
  line-height: 1;
}
.fact-number.mono {
  font-size: 18px;
  letter-spacing: 0.03em;
}
.facts > div > span:last-child {
  font-size: 12px;
  color: var(--muted);
}
.section {
  padding-top: 88px;
  padding-bottom: 88px;
}
.section-heading {
  display: flex;
  justify-content: space-between;
  gap: 64px;
  align-items: flex-end;
  margin-bottom: 44px;
}
.section-heading .eyebrow,
.workflow .eyebrow,
.scope .eyebrow,
.faq-section .eyebrow {
  color: var(--accent);
  margin-bottom: 18px;
}
.section-intro {
  font-size: 14px;
  color: var(--muted);
  max-width: 352px;
  margin-bottom: 4px;
  line-height: 1.9;
}
.capability-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}
.capability-grid article {
  padding: 29px 26px 27px;
  border-left: 1px solid var(--line);
  display: flex;
  flex-direction: column;
}
.capability-grid article:first-child {
  padding-left: 0;
  border-left: 0;
}
.capability-grid article:last-child {
  padding-right: 0;
}
.capability-no {
  font: 10px/1.5 var(--font-mono);
  color: var(--muted);
  letter-spacing: 0.03em;
}
.capability-grid h3 {
  margin: 21px 0 13px;
}
.capability-grid p {
  font-size: 13px;
  line-height: 1.9;
  color: var(--muted);
  margin-bottom: 23px;
}
.capability-detail {
  font-size: 10px;
  color: var(--accent);
  margin-top: auto;
}
.workflow-section {
  background: var(--paper);
}
.workflow {
  display: grid;
  grid-template-columns: 1fr 1.1fr;
  gap: 120px;
}
.workflow-title p:last-child {
  font-size: 14px;
  color: var(--muted);
  max-width: 340px;
  margin-top: 24px;
}
.workflow-steps {
  list-style: none;
  margin: 0;
  padding: 0;
}
.workflow-steps li {
  display: flex;
  gap: 27px;
  padding: 24px 0;
  border-bottom: 1px solid var(--line);
}
.workflow-steps li:first-child {
  padding-top: 0;
}
.workflow-steps li:last-child {
  border: 0;
  padding-bottom: 0;
}
.workflow-steps .step-index {
  padding-top: 6px;
}
.workflow-steps h3 {
  font-size: 22px;
}
.workflow-steps p {
  font-size: 13px;
  color: var(--muted);
  margin: 9px 0 0;
  line-height: 1.9;
}
.install-layout {
  display: grid;
  grid-template-columns: 290px 1fr;
  gap: 56px;
}
.install-sidebar {
  padding: 26px 0;
}
.install-sidebar h3 {
  margin: 22px 0 13px;
}
.install-sidebar > p {
  font-size: 13px;
  color: var(--muted);
}
label {
  display: block;
  font-size: 12px;
  font-weight: 500;
  margin: 22px 0 8px;
}
select {
  background: white;
  border: 1px solid #b7bec9;
  border-radius: 4px;
  padding: 10px 14px;
  width: 100%;
  color: var(--ink);
  font-size: 13px;
  min-height: 43px;
}
.install-sidebar .install-footnote {
  font-size: 11px;
  margin-top: 16px;
  line-height: 1.8;
}
.install-panel {
  border: 1px solid var(--line);
  border-radius: 12px;
  overflow: hidden;
  min-width: 0;
}
.tabs {
  display: flex;
  background: var(--paper);
  border-bottom: 1px solid var(--line);
  padding: 0 28px;
  gap: 29px;
}
.tabs button {
  background: transparent;
  border: 0;
  border-bottom: 2px solid transparent;
  padding: 19px 0 17px;
  font-size: 13px;
  color: var(--muted);
}
.tabs button[aria-selected="true"] {
  border-bottom-color: var(--accent);
  color: var(--accent);
  font-weight: 500;
}
.tab-panel {
  padding: 28px 30px 26px;
}
.tab-panel p {
  font-size: 13px;
  color: var(--muted);
  margin: 12px 0 20px;
  line-height: 1.85;
}
.panel-title {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}
.tiny-label {
  font-size: 10px;
  letter-spacing: 0.08em;
  color: var(--accent);
  background: var(--accent-wash);
  border-radius: 4px;
  padding: 2px 6px;
}
.tab-panel textarea {
  width: 100%;
  font-size: 13px;
  line-height: 1.9;
  border: 1px solid var(--line);
  border-radius: 4px;
  background: var(--paper);
  padding: 15px 18px;
  resize: vertical;
  min-height: 157px;
  color: #303b4b;
}
.panel-actions {
  display: flex;
  align-items: center;
  gap: 21px;
  flex-wrap: wrap;
  margin-top: 22px;
}
.tab-panel .quiet {
  font-size: 11px;
  margin-top: 16px;
  margin-bottom: 0;
}
pre {
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 4px;
  padding: 20px;
  white-space: pre-wrap;
  word-break: break-all;
  font-size: 12px;
  line-height: 1.8;
}
.checksum {
  font-size: 11px;
  border-top: 1px solid var(--line);
  margin-top: 18px;
  padding-top: 12px;
}
.checksum summary {
  cursor: pointer;
  color: var(--muted);
}
.checksum code {
  font-size: 10px;
  display: block;
  overflow-wrap: anywhere;
  margin-top: 10px;
}
.first-query {
  margin-top: 44px;
  border-top: 1px solid var(--line);
  padding-top: 30px;
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 70px;
}
.first-query .eyebrow {
  color: var(--muted);
  font-size: 10px;
  margin-bottom: 10px;
}
.first-query h3 {
  font-size: 23px;
}
.first-query > div:last-child p {
  font-size: 14px;
  line-height: 1.9;
  margin-bottom: 12px;
}
.scope-section {
  background: #15171c;
  color: white;
}
.scope {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 100px;
}
.scope .eyebrow {
  color: #afbfd8;
}
.scope-list > div {
  border-bottom: 1px solid #363b45;
  padding: 23px 0;
}
.scope-list > div:first-child {
  padding-top: 0;
}
.scope-list > div:last-child {
  padding-bottom: 0;
  border: 0;
}
.scope h3 {
  font-family: var(--font-sans);
  font-size: 16px;
  font-weight: 500;
}
.scope p {
  font-size: 13px;
  line-height: 1.9;
  color: #bac0ca;
  margin: 10px 0 0;
}
.scope .eyebrow {
  margin: 0 0 18px;
}
.faq-section {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 80px;
}
.faq-section h2 {
  font-size: 32px;
  max-width: 330px;
}
.faq details {
  padding: 22px 0;
  border-bottom: 1px solid var(--line);
}
.faq details:first-child {
  padding-top: 0;
}
.faq summary {
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  list-style: none;
  display: flex;
  justify-content: space-between;
  gap: 24px;
}
.faq summary::-webkit-details-marker {
  display: none;
}
.faq summary:after {
  content: "+";
  font-size: 19px;
  font-weight: 400;
  color: var(--muted);
  line-height: 1;
}
.faq details[open] summary:after {
  content: "−";
}
.faq p {
  font-size: 13px;
  line-height: 1.9;
  color: var(--muted);
  margin: 16px 0 2px;
}
.closing {
  padding-top: 52px;
  padding-bottom: 68px;
  text-align: center;
  border-top: 1px solid var(--line);
}
.closing .eyebrow {
  color: var(--accent);
  margin-bottom: 18px;
}
.closing h2 {
  font-size: 36px;
  margin-bottom: 28px;
}
.footer {
  padding-top: 32px;
  padding-bottom: 34px;
  border-top: 1px solid var(--line);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 40px;
}
.footer > div {
  display: flex;
  gap: 20px;
  align-items: center;
  font-size: 11px;
  color: var(--muted);
}
.footer strong {
  font-size: 12px;
  letter-spacing: 0.07em;
  color: var(--ink);
}
.footer a:hover {
  color: var(--accent);
}
.footer .mono {
  font-size: 10px;
  color: #7b8492;
}
#toast {
  position: fixed;
  bottom: 26px;
  left: 50%;
  transform: translate(-50%, 10px);
  background: var(--ink);
  color: white;
  padding: 13px 22px;
  border-radius: 8px;
  box-shadow: 0 5px 16px #15171c14;
  font-size: 13px;
  z-index: 100;
  opacity: 0;
  pointer-events: none;
  transition:
    opacity 0.16s,
    transform 0.16s;
  max-width: 90vw;
  text-align: center;
}
#toast.visible {
  opacity: 1;
  transform: translate(-50%, 0);
}
dialog {
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 28px;
  max-width: 650px;
  width: calc(100% - 40px);
}
dialog::backdrop {
  background: #15171c66;
}
.dialog-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 20px;
}
dialog p {
  font-size: 13px;
  color: var(--muted);
  margin-top: 18px;
}
dialog textarea {
  width: 100%;
  padding: 14px;
  border: 1px solid var(--line);
  font-size: 13px;
  border-radius: 4px;
}
.en h1 {
  white-space: normal;
  font-size: 60px;
  line-height: 1.13;
}
.en .hero-lead {
  font-size: 16px;
}
.en h2 {
  line-height: 1.2;
}
.en .hero-note {
  line-height: 1.8;
}
.en .preview-question {
  font-size: 22px;
}
.en .capability-grid h3 {
  font-size: 22px;
}
body [hidden] {
  display: none !important;
}
@media (min-width: 1440px) {
  .hero {
    padding-top: 104px;
    padding-bottom: 100px;
  }
}
@media (max-width: 1050px) {
  .hero {
    gap: 38px;
  }
  .hero h1 {
    font-size: 43px;
  }
  .hero-lead {
    font-size: 14px;
  }
  .hero-buttons {
    gap: 8px;
  }
  .hero-buttons .button {
    font-size: 13px;
    padding: 12px 16px;
  }
  .header nav {
    margin-right: 0;
    gap: 20px;
  }
  .hero {
    padding-top: 68px;
    padding-bottom: 68px;
  }
  .preview-body {
    padding: 22px 20px 4px;
  }
  .preview-question {
    font-size: 20px;
  }
  .preview-top,
  .preview-footer {
    padding-left: 20px;
    padding-right: 20px;
  }
  .preview-footer {
    gap: 8px;
    font-size: 9px;
  }
  .preview-footer .mono {
    font-size: 8px;
  }
  .capability-grid article {
    padding-left: 20px;
    padding-right: 20px;
  }
  .capability-grid h3 {
    font-size: 21px;
  }
  .workflow {
    gap: 75px;
  }
  .install-layout {
    grid-template-columns: 240px 1fr;
    gap: 30px;
  }
  .section-heading {
    gap: 40px;
  }
  .section-intro {
    max-width: 300px;
  }
  .section h2 {
    font-size: 34px;
  }
  .scope,
  .faq-section {
    gap: 60px;
  }
  .en h1 {
    font-size: 48px;
  }
}
@media (max-width: 800px) {
  .wrap {
    padding-left: 26px;
    padding-right: 26px;
  }
  .header {
    min-height: 85px;
  }
  .header nav {
    display: none;
  }
  .hero {
    grid-template-columns: 1fr;
    gap: 44px;
    max-width: 680px;
  }
  .hero h1 {
    font-size: 49px;
  }
  .hero-lead {
    font-size: 16px;
    max-width: 520px;
  }
  .hero-buttons {
    gap: 12px;
  }
  .hero-buttons .button {
    font-size: 14px;
    padding: 12px 21px;
  }
  .research-preview {
    max-width: 530px;
  }
  .preview-top,
  .preview-footer {
    padding-left: 25px;
    padding-right: 25px;
  }
  .preview-body {
    padding: 26px 25px 6px;
  }
  .preview-question {
    font-size: 23px;
  }
  .facts {
    gap: 15px;
  }
  .facts > div {
    padding-left: 20px;
    flex-direction: column;
    align-items: flex-start;
    gap: 9px;
  }
  .facts > div > span:last-child {
    font-size: 10px;
  }
  .fact-number.mono {
    font-size: 17px;
    line-height: 1.9;
  }
  .section {
    padding-top: 65px;
    padding-bottom: 65px;
  }
  .section-heading {
    display: block;
    margin-bottom: 30px;
  }
  .section-intro {
    max-width: 550px;
    margin-top: 18px;
  }
  .capability-grid {
    grid-template-columns: 1fr 1fr;
    border-bottom: 0;
  }
  .capability-grid article {
    border-bottom: 1px solid var(--line);
    padding: 27px 24px;
  }
  .capability-grid article:nth-child(odd) {
    padding-left: 0;
    border-left: 0;
  }
  .capability-grid article:nth-child(even) {
    padding-right: 0;
  }
  .workflow {
    grid-template-columns: 1fr 1.1fr;
    gap: 40px;
  }
  .workflow h2 {
    font-size: 32px;
  }
  .workflow-steps li {
    gap: 18px;
  }
  .workflow-steps h3 {
    font-size: 21px;
  }
  .install-layout {
    grid-template-columns: 1fr;
    gap: 20px;
  }
  .install-sidebar {
    padding: 0;
    display: grid;
    grid-template-columns: 1fr 220px;
    gap: 0 40px;
  }
  .install-sidebar .release-tag {
    align-self: start;
    justify-self: start;
  }
  .install-sidebar h3 {
    margin: 16px 0 10px;
    grid-column: 1;
  }
  .install-sidebar > p {
    grid-column: 1;
  }
  .install-sidebar label {
    grid-column: 2;
    grid-row: 1;
    align-self: end;
    margin-top: 0;
  }
  .install-sidebar select {
    grid-column: 2;
    grid-row: 2;
    align-self: center;
  }
  .install-sidebar .install-footnote {
    grid-column: 2;
    grid-row: 3;
    margin-top: 0;
  }
  .first-query {
    gap: 40px;
  }
  .first-query h3 {
    font-size: 22px;
  }
  .scope {
    gap: 50px;
  }
  .scope-list h3 {
    font-size: 15px;
  }
  .faq-section {
    grid-template-columns: 1fr;
    gap: 35px;
  }
  .faq-section h2 {
    max-width: none;
  }
  .footer {
    align-items: flex-start;
    gap: 24px;
  }
  .footer > div:first-child {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 6px;
  }
  .footer > div:last-child {
    gap: 15px;
    flex-wrap: wrap;
    justify-content: flex-end;
  }
  .en h1 {
    font-size: 60px;
  }
}
@media (max-width: 540px) {
  .wrap {
    padding-left: 22px;
    padding-right: 22px;
  }
  .header {
    min-height: 80px;
    gap: 20px;
  }
  .wordmark-main {
    font-size: 18px;
  }
  .wordmark-light {
    font-size: 12px;
  }
  .wordmark-sub {
    font-size: 8px;
  }
  .header-actions {
    gap: 12px;
  }
  .header-actions .button {
    font-size: 10px;
    padding: 8px 10px;
    min-height: 34px;
  }
  .language {
    font-size: 11px;
  }
  .hero {
    padding-top: 48px;
    padding-bottom: 46px;
    gap: 34px;
  }
  .hero .eyebrow {
    font-size: 9px;
    letter-spacing: 0.11em;
    gap: 10px;
    margin-bottom: 22px;
  }
  .hero h1 {
    font-size: 37px;
    line-height: 1.5;
    letter-spacing: -0.045em;
    margin-bottom: 20px;
  }
  .hero-lead {
    font-size: 14px;
    line-height: 1.9;
  }
  .hero-buttons {
    margin-top: 26px;
    gap: 9px;
  }
  .hero-buttons .button {
    font-size: 12px;
    padding: 12px 14px;
    min-height: 45px;
  }
  .hero-note {
    font-size: 10px;
    line-height: 1.8;
    max-width: 330px;
  }
  .preview-top {
    padding: 16px 20px;
  }
  .preview-top .eyebrow {
    font-size: 9px;
    margin: 0;
  }
  .preview-label {
    font-size: 9px;
  }
  .preview-body {
    padding: 23px 20px 5px;
  }
  .preview-question {
    font-size: 20px;
  }
  .preview-line {
    padding: 15px 0;
  }
  .preview-footer {
    padding: 14px 20px;
    flex-direction: column;
    gap: 4px;
  }
  .facts {
    padding-top: 21px;
    padding-bottom: 21px;
    grid-template-columns: 0.7fr 1.25fr 1.1fr;
    gap: 12px;
  }
  .facts > div {
    padding-left: 12px;
    gap: 7px;
  }
  .fact-number {
    font-size: 28px;
  }
  .fact-number.mono {
    font-size: 14px;
    line-height: 2;
  }
  .facts > div > span:last-child {
    font-size: 9px;
    line-height: 1.7;
    max-width: 110px;
  }
  .section {
    padding-top: 53px;
    padding-bottom: 53px;
  }
  .section h2 {
    font-size: 29px;
    line-height: 1.5;
  }
  .section-heading .eyebrow {
    font-size: 10px;
    margin-bottom: 13px;
  }
  .section-intro {
    font-size: 13px;
    line-height: 1.9;
  }
  .capability-grid article {
    padding: 23px 16px;
  }
  .capability-grid h3 {
    font-size: 20px;
    margin-top: 17px;
  }
  .capability-no {
    font-size: 9px;
    letter-spacing: 0;
  }
  .capability-grid p {
    font-size: 12px;
    line-height: 1.9;
    margin-bottom: 19px;
  }
  .capability-detail {
    font-size: 9px;
    line-height: 1.8;
  }
  .workflow {
    display: block;
  }
  .workflow-title p:last-child {
    max-width: 100%;
    font-size: 13px;
    margin: 16px 0 32px;
  }
  .workflow-steps li {
    gap: 23px;
    padding: 22px 0;
  }
  .workflow-steps h3 {
    font-size: 21px;
  }
  .install-sidebar {
    grid-template-columns: 1fr;
    display: block;
    padding-bottom: 7px;
  }
  .install-sidebar h3 {
    font-size: 22px;
  }
  .install-sidebar > p {
    font-size: 12px;
  }
  .install-sidebar label {
    margin-top: 20px;
  }
  .install-sidebar .install-footnote {
    margin-top: 10px;
  }
  .tabs {
    padding: 0 19px;
    gap: 24px;
    justify-content: space-between;
  }
  .tabs button {
    font-size: 11px;
    padding: 17px 0 15px;
  }
  .tab-panel {
    padding: 24px 20px;
  }
  .tab-panel h3 {
    font-size: 20px;
  }
  .tiny-label {
    font-size: 9px;
  }
  .tab-panel p {
    font-size: 12px;
  }
  .tab-panel textarea {
    font-size: 12px;
    padding: 13px;
    min-height: 197px;
  }
  .panel-actions {
    gap: 16px;
    margin-top: 20px;
  }
  .panel-actions .button {
    font-size: 12px;
    padding: 11px 14px;
    min-height: 44px;
  }
  .text-link {
    font-size: 11px;
  }
  .tab-panel .quiet {
    font-size: 10px;
    line-height: 1.8;
  }
  .first-query {
    display: block;
    margin-top: 34px;
    padding-top: 27px;
  }
  .first-query h3 {
    font-size: 23px;
    margin-bottom: 19px;
  }
  .first-query > div:last-child p {
    font-size: 13px;
  }
  .scope {
    display: block;
  }
  .scope-list {
    margin-top: 31px;
  }
  .scope-list h3 {
    font-size: 16px;
  }
  .scope-list p {
    font-size: 12px;
  }
  .faq-section {
    gap: 24px;
  }
  .faq summary {
    font-size: 13px;
    line-height: 1.8;
  }
  .faq p {
    font-size: 12px;
  }
  .closing {
    padding-top: 45px;
    padding-bottom: 47px;
  }
  .closing .eyebrow {
    font-size: 10px;
  }
  .closing h2 {
    font-size: 28px;
    line-height: 1.55;
  }
  .closing .button {
    font-size: 13px;
  }
  .footer {
    display: block;
    padding-top: 27px;
    padding-bottom: 28px;
  }
  .footer > div:first-child {
    flex-direction: row;
    align-items: center;
    gap: 15px;
  }
  .footer strong {
    font-size: 11px;
  }
  .footer > div {
    font-size: 10px;
  }
  .footer > div:last-child {
    margin-top: 20px;
    justify-content: flex-start;
    gap: 21px;
  }
  .en h1 {
    font-size: 44px;
    line-height: 1.14;
  }
  .en .hero-lead {
    font-size: 14px;
  }
  .en .hero-buttons {
    flex-wrap: wrap;
  }
  .en .hero .eyebrow {
    font-size: 8px;
  }
  .en .capability-grid h3 {
    font-size: 20px;
  }
  .en .section h2 {
    line-height: 1.2;
  }
  .en .tabs {
    gap: 18px;
  }
  .en .tabs button {
    font-size: 11px;
  }
}
@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  *,
  *:before,
  *:after {
    transition: none !important;
  }
}
.hero-copy { min-width: 0; }
@media (max-width: 540px) {
  .hero h1 { font-size: clamp(29px, 9.45vw, 37px); }
  .en .hero h1 { font-size: clamp(36px, 11.3vw, 44px); }
}
@media (max-width: 360px) {
  .header { gap: 12px; }
  .wordmark-main { font-size: 16px; }
  .wordmark-light { font-size: 10px; }
  .wordmark-sub { font-size: 7px; }
  .header-actions { gap: 8px; }
}

.publication-note { padding: 13px 18px; border: 1px solid var(--line); border-radius: 6px; background: var(--paper); color: var(--muted); font-size: 13px; margin-bottom: 22px; }