:root {
  --ink: #0b1b1a;
  --ink-soft: #122b28;
  --ink-muted: #1d3935;
  --paper: #f3f0e7;
  --paper-bright: #fbfaf5;
  --mist: #dfe9e5;
  --line: #bac9c4;
  --line-dark: #335650;
  --signal: #63dbc5;
  --signal-dark: #007b73;
  --amber: #f5b84b;
  --coral: #df7464;
  --text: #132321;
  --text-muted: #5c716d;
  --mono: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
  --sans: "Aptos", "Noto Sans SC", "Microsoft YaHei", system-ui, sans-serif;
  --display: "Arial Narrow", "Aptos Display", "Noto Sans SC", sans-serif;
  --page: min(1240px, calc(100vw - 48px));
  --radius: 18px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 96px;
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--text);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.65;
  text-rendering: optimizeLegibility;
}

body::selection {
  background: var(--signal);
  color: var(--ink);
}

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

a {
  color: inherit;
  text-decoration: none;
}

button,
input {
  font: inherit;
}

.skip-link {
  background: var(--amber);
  color: var(--ink);
  left: 16px;
  padding: 10px 14px;
  position: fixed;
  top: -80px;
  z-index: 1000;
}

.skip-link:focus {
  top: 12px;
}

.site-header {
  background: rgba(243, 240, 231, 0.92);
  border-bottom: 1px solid transparent;
  left: 0;
  position: fixed;
  right: 0;
  top: 0;
  transition: border-color 180ms ease, background-color 180ms ease;
  z-index: 100;
}

.site-header.is-scrolled {
  backdrop-filter: blur(14px);
  border-color: var(--line);
}

.header-inner {
  align-items: center;
  display: grid;
  gap: 32px;
  grid-template-columns: auto 1fr auto;
  margin: 0 auto;
  min-height: 80px;
  width: var(--page);
}

.brand {
  align-items: center;
  display: inline-flex;
  gap: 12px;
}

.brand img {
  height: 42px;
  width: 42px;
}

.brand-copy {
  display: grid;
  line-height: 1.05;
}

.brand-copy strong {
  font-family: var(--display);
  font-size: 19px;
  letter-spacing: 0.13em;
}

.brand-copy small {
  color: var(--text-muted);
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.11em;
  margin-top: 6px;
  text-transform: uppercase;
}

.site-nav {
  align-items: center;
  display: flex;
  gap: 6px;
  justify-content: center;
}

.site-nav a {
  border: 1px solid transparent;
  border-radius: 999px;
  color: #344a46;
  font-size: 14px;
  padding: 8px 13px;
}

.site-nav a:hover,
.site-nav a[aria-current="page"] {
  border-color: var(--line);
  color: var(--ink);
}

.workbench-button {
  align-items: center;
  background: var(--ink);
  border: 1px solid var(--ink);
  border-radius: 999px;
  color: #fff;
  cursor: not-allowed;
  display: inline-flex;
  font-size: 13px;
  font-weight: 700;
  gap: 10px;
  justify-content: center;
  min-height: 44px;
  padding: 0 18px;
  position: relative;
}

.workbench-button::after {
  background: var(--amber);
  border-radius: 50%;
  content: "";
  height: 7px;
  width: 7px;
}

.workbench-button.is-notified::before {
  background: var(--paper-bright);
  border: 1px solid var(--line);
  color: var(--text);
  content: "工作台正在精心准备中";
  font-size: 12px;
  font-weight: 500;
  padding: 8px 12px;
  position: absolute;
  right: 0;
  top: calc(100% + 10px);
  white-space: nowrap;
}

.menu-button {
  align-items: center;
  background: transparent;
  border: 1px solid var(--line);
  border-radius: 50%;
  display: none;
  height: 42px;
  justify-content: center;
  padding: 0;
  width: 42px;
}

.menu-button span,
.menu-button::before,
.menu-button::after {
  background: var(--ink);
  content: "";
  display: block;
  height: 1px;
  position: absolute;
  width: 17px;
}

.menu-button::before { transform: translateY(-5px); }
.menu-button::after { transform: translateY(5px); }

main {
  overflow: clip;
}

.hero {
  background: var(--ink);
  color: white;
  min-height: 800px;
  padding: 168px 0 96px;
  position: relative;
}

.hero::before {
  background-image: url("/assets/img/hero-grid.svg");
  content: "";
  inset: 0;
  opacity: 0.9;
  pointer-events: none;
  position: absolute;
}

.hero::after {
  border: 1px solid rgba(99, 219, 197, 0.22);
  border-radius: 50%;
  content: "";
  height: 520px;
  position: absolute;
  right: -230px;
  top: 76px;
  width: 520px;
}

.hero-inner {
  display: grid;
  gap: 64px;
  grid-template-columns: minmax(0, 1.05fr) minmax(480px, 0.95fr);
  margin: 0 auto;
  position: relative;
  width: var(--page);
  z-index: 1;
}

.eyebrow {
  align-items: center;
  color: var(--signal-dark);
  display: flex;
  font-family: var(--mono);
  font-size: 12px;
  font-weight: 700;
  gap: 10px;
  letter-spacing: 0.16em;
  margin: 0 0 22px;
  text-transform: uppercase;
}

.eyebrow::before {
  background: currentColor;
  content: "";
  height: 1px;
  width: 28px;
}

.hero .eyebrow {
  color: var(--signal);
}

.hero h1 {
  font-family: var(--display);
  font-size: clamp(56px, 5.8vw, 88px);
  font-stretch: condensed;
  letter-spacing: -0.065em;
  line-height: 0.96;
  margin: 0;
  max-width: 760px;
}

.hero h1 span,
.hero h1 em {
  display: inline-block;
  white-space: nowrap;
}

.hero h1 em {
  color: var(--signal);
  font-style: normal;
}

.hero-thesis {
  color: #f4f8f6;
  font-family: var(--display);
  font-size: clamp(20px, 2vw, 29px);
  letter-spacing: -0.025em;
  line-height: 1.35;
  margin: 28px 0 0;
  max-width: 640px;
}

.hero-thesis strong {
  color: var(--signal);
  font-weight: 600;
}

.hero-lede {
  color: #b7cbc7;
  font-size: clamp(17px, 1.4vw, 20px);
  line-height: 1.65;
  margin: 18px 0 0;
  max-width: 650px;
}

.hero-actions {
  align-items: center;
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-top: 40px;
}

.primary-link,
.secondary-link {
  align-items: center;
  border-radius: 999px;
  display: inline-flex;
  font-size: 14px;
  font-weight: 700;
  gap: 16px;
  justify-content: center;
  min-height: 52px;
  padding: 0 22px;
}

.primary-link {
  background: var(--signal);
  border: 1px solid var(--signal);
  color: var(--ink);
}

.primary-link::after,
.secondary-link::after,
.text-link::after {
  content: "↗";
  font-family: var(--mono);
}

.primary-link:hover {
  background: #8cead8;
}

.secondary-link {
  border: 1px solid #40635d;
  color: white;
}

.secondary-link:hover {
  border-color: var(--signal);
}

.hero-proof {
  align-self: end;
  margin-top: 170px;
  position: relative;
}

.proof-window {
  background: #e5ece9;
  border: 1px solid #54736d;
  border-radius: 18px;
  box-shadow: 0 40px 100px rgba(0, 0, 0, 0.35);
  overflow: hidden;
  transform: rotate(1.4deg);
}

.window-bar {
  align-items: center;
  background: #132725;
  color: #9bb2ad;
  display: flex;
  font-family: var(--mono);
  font-size: 10px;
  height: 42px;
  justify-content: space-between;
  letter-spacing: 0.08em;
  padding: 0 16px;
  text-transform: uppercase;
}

.window-dots {
  display: flex;
  gap: 6px;
}

.window-dots i {
  background: #49645f;
  border-radius: 50%;
  height: 7px;
  width: 7px;
}

.window-dots i:first-child { background: var(--coral); }
.window-dots i:nth-child(2) { background: var(--amber); }
.window-dots i:nth-child(3) { background: var(--signal); }

.proof-window img {
  aspect-ratio: 960 / 600;
  display: block;
  height: auto;
  max-width: 100%;
  object-fit: contain;
  width: 100%;
}

.hero-meta {
  border-top: 1px solid #2e4a46;
  display: grid;
  gap: 24px;
  grid-column: 1 / -1;
  grid-template-columns: repeat(4, 1fr);
  margin-top: 36px;
  padding-top: 26px;
}

.hero-meta div {
  border-left: 1px solid #2e4a46;
  padding-left: 16px;
}

.hero-meta span {
  color: #8ba6a0;
  display: block;
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.14em;
  margin-bottom: 6px;
  text-transform: uppercase;
}

.hero-meta strong {
  font-size: 14px;
  font-weight: 600;
}

.section {
  padding: 124px 0;
}

.section-compact {
  padding: 88px 0;
}

.section-dark {
  background: var(--ink);
  color: white;
}

.section-paper {
  background: var(--paper-bright);
}

.section-mist {
  background: var(--mist);
}

.section-inner {
  margin: 0 auto;
  width: var(--page);
}

.section-heading {
  align-items: end;
  display: grid;
  gap: 48px;
  grid-template-columns: 1fr 0.8fr;
  margin-bottom: 64px;
}

.section-heading h2,
.page-hero h1,
.article-hero h1 {
  font-family: var(--display);
  font-size: clamp(44px, 5.1vw, 78px);
  letter-spacing: -0.055em;
  line-height: 1.02;
  margin: 0;
}

.section-heading > p {
  color: var(--text-muted);
  font-size: 18px;
  margin: 0;
  max-width: 560px;
}

.section-dark .section-heading > p {
  color: #a7bdb8;
}

.principle-grid {
  border-left: 1px solid var(--line);
  border-top: 1px solid var(--line);
  display: grid;
  grid-template-columns: repeat(4, 1fr);
}

.principle-card {
  border-bottom: 1px solid var(--line);
  border-right: 1px solid var(--line);
  min-height: 290px;
  padding: 30px;
  position: relative;
}

.principle-card::after {
  background: var(--signal-dark);
  bottom: 0;
  content: "";
  height: 4px;
  left: 0;
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 220ms ease;
  width: 100%;
}

.principle-card:hover::after {
  transform: scaleX(1);
}

.principle-number {
  color: var(--signal-dark);
  font-family: var(--mono);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.12em;
}

.principle-card h3 {
  font-size: 24px;
  margin: 80px 0 12px;
}

.principle-card p {
  color: var(--text-muted);
  margin: 0;
}

.loop-figure {
  margin: 0;
}

.loop-figure figcaption {
  color: #98b0aa;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  margin-top: 18px;
  text-transform: uppercase;
}

.capability-grid {
  display: grid;
  gap: 18px;
  grid-template-columns: repeat(12, 1fr);
}

.capability-card {
  background: var(--paper-bright);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  min-height: 320px;
  padding: 32px;
  position: relative;
}

.capability-card:nth-child(1),
.capability-card:nth-child(4) {
  grid-column: span 7;
}

.capability-card:nth-child(2),
.capability-card:nth-child(3) {
  grid-column: span 5;
}

.capability-card.dark {
  background: var(--ink-soft);
  border-color: var(--ink-soft);
  color: white;
}

.capability-icon {
  align-items: center;
  border: 1px solid var(--line);
  border-radius: 50%;
  display: flex;
  font-family: var(--mono);
  font-size: 11px;
  height: 52px;
  justify-content: center;
  width: 52px;
}

.dark .capability-icon {
  border-color: #41625c;
  color: var(--signal);
}

.capability-card h3 {
  font-size: 28px;
  margin: 52px 0 12px;
}

.capability-card p {
  color: var(--text-muted);
  margin: 0;
  max-width: 580px;
}

.capability-card.dark p {
  color: #a9beb9;
}

.capability-tag {
  bottom: 24px;
  color: var(--signal-dark);
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.12em;
  position: absolute;
  right: 28px;
  text-transform: uppercase;
}

.dark .capability-tag {
  color: var(--signal);
}

.product-stage {
  display: grid;
  gap: 60px;
  grid-template-columns: 0.72fr 1.28fr;
}

.product-copy {
  align-self: center;
}

.product-copy h2 {
  font-family: var(--display);
  font-size: clamp(42px, 4.5vw, 68px);
  letter-spacing: -0.05em;
  line-height: 1.02;
  margin: 0 0 24px;
}

.product-copy > p {
  color: var(--text-muted);
  font-size: 18px;
  margin: 0 0 30px;
}

.product-points {
  border-top: 1px solid var(--line);
  list-style: none;
  margin: 0;
  padding: 0;
}

.product-points li {
  align-items: center;
  border-bottom: 1px solid var(--line);
  display: flex;
  gap: 14px;
  padding: 14px 0;
}

.product-points li::before {
  background: var(--signal-dark);
  border-radius: 50%;
  content: "";
  height: 7px;
  width: 7px;
}

.product-visual {
  background: var(--ink-soft);
  border-radius: 28px;
  padding: 24px;
  position: relative;
}

.product-visual::before,
.product-visual::after {
  border: 1px solid #476a64;
  content: "";
  height: 18px;
  position: absolute;
  width: 18px;
}

.product-visual::before {
  border-bottom: 0;
  border-right: 0;
  left: 12px;
  top: 12px;
}

.product-visual::after {
  border-left: 0;
  border-top: 0;
  bottom: 12px;
  right: 12px;
}

.product-visual img {
  aspect-ratio: 960 / 600;
  border: 1px solid #48645f;
  border-radius: 14px;
  display: block;
  height: auto;
  max-width: 100%;
  object-fit: contain;
  width: 100%;
}

.visual-caption {
  align-items: center;
  color: #98b1ab;
  display: flex;
  font-family: var(--mono);
  font-size: 10px;
  justify-content: space-between;
  letter-spacing: 0.09em;
  padding: 16px 4px 0;
  text-transform: uppercase;
}

.visual-caption span:first-child::before {
  background: var(--signal);
  border-radius: 50%;
  content: "";
  display: inline-block;
  height: 7px;
  margin-right: 8px;
  width: 7px;
}

.blog-grid {
  display: grid;
  gap: 18px;
  grid-template-columns: repeat(3, 1fr);
}

.blog-card {
  background: var(--paper-bright);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  display: flex;
  flex-direction: column;
  min-height: 370px;
  padding: 28px;
  transition: background-color 180ms ease, transform 180ms ease;
}

.blog-card:hover {
  background: white;
  transform: translateY(-4px);
}

.blog-meta {
  color: var(--signal-dark);
  display: flex;
  font-family: var(--mono);
  font-size: 10px;
  justify-content: space-between;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.blog-card h3 {
  font-size: 27px;
  letter-spacing: -0.03em;
  line-height: 1.25;
  margin: 70px 0 16px;
}

.blog-card p {
  color: var(--text-muted);
  margin: 0;
}

.text-link {
  align-items: center;
  color: var(--signal-dark);
  display: inline-flex;
  font-size: 14px;
  font-weight: 700;
  gap: 10px;
  margin-top: auto;
  padding-top: 30px;
}

.cta {
  background: var(--amber);
  color: var(--ink);
  padding: 96px 0;
}

.cta-inner {
  align-items: end;
  display: grid;
  gap: 48px;
  grid-template-columns: 1fr auto;
  margin: 0 auto;
  width: var(--page);
}

.cta h2 {
  font-family: var(--display);
  font-size: clamp(46px, 6vw, 88px);
  letter-spacing: -0.06em;
  line-height: 0.96;
  margin: 0;
  max-width: 900px;
}

.cta .workbench-button {
  min-height: 58px;
  padding: 0 24px;
}

.site-footer {
  background: var(--ink);
  color: #b3c5c1;
  padding: 72px 0 30px;
}

.footer-inner {
  margin: 0 auto;
  width: var(--page);
}

.footer-main {
  display: grid;
  gap: 60px;
  grid-template-columns: 1.4fr repeat(2, 0.5fr);
}

.footer-brand p {
  max-width: 480px;
}

.footer-nav h3 {
  color: white;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  margin: 0 0 18px;
  text-transform: uppercase;
}

.footer-nav a {
  display: block;
  margin: 8px 0;
}

.footer-nav a:hover {
  color: var(--signal);
}

.footer-bottom {
  border-top: 1px solid #28433f;
  display: flex;
  font-family: var(--mono);
  font-size: 10px;
  justify-content: space-between;
  letter-spacing: 0.08em;
  margin-top: 64px;
  padding-top: 24px;
  text-transform: uppercase;
}

.page-hero,
.article-hero {
  background: var(--ink);
  color: white;
  padding: 176px 0 96px;
}

.page-hero-inner,
.article-hero-inner {
  margin: 0 auto;
  width: var(--page);
}

.page-hero p {
  color: #a8bdb8;
  font-size: 20px;
  margin: 28px 0 0;
  max-width: 720px;
}

.page-index {
  border-top: 1px solid #34534e;
  display: grid;
  gap: 24px;
  grid-template-columns: repeat(3, 1fr);
  margin-top: 64px;
  padding-top: 24px;
}

.page-index div {
  border-left: 1px solid #34534e;
  padding-left: 16px;
}

.page-index span {
  color: var(--signal);
  display: block;
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.1em;
  margin-bottom: 4px;
  text-transform: uppercase;
}

.architecture-grid {
  display: grid;
  gap: 24px;
  grid-template-columns: 0.85fr 1.15fr;
}

.architecture-copy {
  align-self: center;
}

.architecture-copy h2 {
  font-family: var(--display);
  font-size: clamp(40px, 4.4vw, 66px);
  letter-spacing: -0.05em;
  line-height: 1.04;
  margin: 0 0 24px;
}

.architecture-copy p {
  color: var(--text-muted);
  font-size: 18px;
}

.layer-stack {
  display: grid;
  gap: 10px;
}

.layer {
  background: var(--paper-bright);
  border: 1px solid var(--line);
  border-radius: 12px;
  display: grid;
  gap: 24px;
  grid-template-columns: 80px 1fr;
  padding: 22px;
}

.layer code {
  color: var(--signal-dark);
  font-family: var(--mono);
  font-size: 11px;
}

.layer h3 {
  font-size: 20px;
  margin: 0 0 5px;
}

.layer p {
  color: var(--text-muted);
  margin: 0;
}

.article-hero-inner {
  max-width: 1000px;
}

.article-hero h1 {
  max-width: 960px;
}

.article-meta {
  color: #9eb3ae;
  display: flex;
  font-family: var(--mono);
  font-size: 11px;
  gap: 24px;
  letter-spacing: 0.08em;
  margin-top: 30px;
  text-transform: uppercase;
}

.article-layout {
  display: grid;
  gap: 72px;
  grid-template-columns: 220px minmax(0, 720px);
  margin: 0 auto;
  padding: 88px 0 120px;
  width: min(1020px, calc(100vw - 48px));
}

.article-aside {
  align-self: start;
  border-top: 1px solid var(--line);
  color: var(--text-muted);
  font-family: var(--mono);
  font-size: 11px;
  position: sticky;
  top: 116px;
}

.article-aside p {
  border-bottom: 1px solid var(--line);
  margin: 0;
  padding: 14px 0;
}

.article-body {
  font-size: 18px;
}

.article-body > p:first-child {
  color: #27423e;
  font-size: 24px;
  line-height: 1.6;
  margin-top: 0;
}

.article-body h2 {
  font-family: var(--display);
  font-size: 38px;
  letter-spacing: -0.035em;
  line-height: 1.15;
  margin: 64px 0 18px;
}

.article-body h3 {
  font-size: 23px;
  margin: 42px 0 14px;
}

.article-body p,
.article-body li {
  color: #334a46;
}

.article-body blockquote {
  border-left: 4px solid var(--signal-dark);
  color: var(--ink);
  font-family: var(--display);
  font-size: 30px;
  letter-spacing: -0.025em;
  line-height: 1.4;
  margin: 54px 0;
  padding: 8px 0 8px 28px;
}

.article-body code {
  background: #e0e8e4;
  border-radius: 4px;
  font-family: var(--mono);
  font-size: 0.85em;
  padding: 2px 5px;
}

.article-nav {
  border-top: 1px solid var(--line);
  display: flex;
  justify-content: space-between;
  margin-top: 72px;
  padding-top: 24px;
}

.article-nav a {
  color: var(--signal-dark);
  font-weight: 700;
}

.all-posts {
  display: grid;
  gap: 18px;
  grid-template-columns: repeat(2, 1fr);
}

.all-posts .blog-card:first-child {
  grid-column: span 2;
  min-height: 420px;
}

.not-found {
  align-items: center;
  background: var(--ink);
  color: white;
  display: flex;
  min-height: 100vh;
  padding: 80px 0;
}

.not-found-inner {
  margin: 0 auto;
  width: var(--page);
}

.not-found strong {
  color: var(--signal);
  font-family: var(--mono);
  font-size: 13px;
  letter-spacing: 0.14em;
}

.not-found h1 {
  font-family: var(--display);
  font-size: clamp(64px, 11vw, 160px);
  letter-spacing: -0.07em;
  line-height: 0.9;
  margin: 20px 0 30px;
}

[data-reveal] {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 520ms ease, transform 520ms ease;
}

[data-reveal][data-revealed="true"] {
  opacity: 1;
  transform: translateY(0);
}

@media (max-width: 1040px) {
  .hero-inner {
    grid-template-columns: 1fr;
  }

  .hero-proof {
    margin: 20px auto 0;
    max-width: 760px;
    width: 100%;
  }

  .hero-meta {
    grid-template-columns: repeat(2, 1fr);
  }

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

  .product-stage,
  .architecture-grid {
    grid-template-columns: 1fr;
  }

  .product-copy {
    max-width: 720px;
  }
}

@media (max-width: 820px) {
  :root {
    --page: min(100% - 32px, 680px);
  }

  .header-inner {
    gap: 14px;
    grid-template-columns: 1fr auto auto;
    min-height: 70px;
  }

  .menu-button {
    display: flex;
    grid-column: 3;
    grid-row: 1;
    position: relative;
  }

  .header-inner > .workbench-button {
    font-size: 0;
    grid-column: 2;
    grid-row: 1;
    min-height: 40px;
    padding: 0 13px;
  }

  .header-inner > .workbench-button::before {
    font-size: 12px;
  }

  .header-inner > .workbench-button::after {
    margin: 0;
  }

  .site-nav {
    align-items: stretch;
    background: var(--paper-bright);
    border-bottom: 1px solid var(--line);
    border-top: 1px solid var(--line);
    display: none;
    flex-direction: column;
    grid-column: 1 / -1;
    padding: 12px 16px 18px;
    position: absolute;
    top: 70px;
    width: 100%;
  }

  .site-nav[data-open="true"] {
    display: flex;
  }

  .site-nav a {
    border-radius: 8px;
    padding: 11px 12px;
  }

  .hero {
    min-height: auto;
    padding: 132px 0 72px;
  }

  .hero h1 {
    font-size: clamp(54px, 16vw, 84px);
  }

  .section {
    padding: 88px 0;
  }

  .section-heading {
    align-items: start;
    gap: 24px;
    grid-template-columns: 1fr;
    margin-bottom: 44px;
  }

  .capability-card:nth-child(n) {
    grid-column: span 12;
  }

  .blog-grid,
  .all-posts {
    grid-template-columns: 1fr;
  }

  .all-posts .blog-card:first-child {
    grid-column: span 1;
  }

  .cta-inner {
    align-items: start;
    grid-template-columns: 1fr;
  }

  .footer-main {
    grid-template-columns: 1fr 1fr;
  }

  .footer-brand {
    grid-column: 1 / -1;
  }

  .page-index {
    grid-template-columns: 1fr;
  }

  .article-layout {
    gap: 30px;
    grid-template-columns: 1fr;
  }

  .article-aside {
    display: none;
  }
}

@media (max-width: 540px) {
  :root {
    --page: calc(100vw - 28px);
  }

  .brand-copy small {
    display: none;
  }

  .hero-inner {
    gap: 44px;
  }

  .hero-lede {
    font-size: 17px;
  }

  .hero-thesis {
    font-size: 20px;
  }

  .hero h1 {
    font-size: clamp(46px, 13.4vw, 64px);
  }

  .hero-actions {
    align-items: stretch;
    flex-direction: column;
  }

  .hero-actions a {
    width: 100%;
  }

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

  .principle-grid {
    grid-template-columns: 1fr;
  }

  .principle-card {
    min-height: 235px;
  }

  .principle-card h3 {
    margin-top: 48px;
  }

  .capability-card {
    min-height: 300px;
    padding: 26px;
  }

  .product-visual {
    border-radius: 18px;
    padding: 10px;
  }

  .visual-caption span:last-child {
    display: none;
  }

  .blog-card {
    min-height: 330px;
  }

  .footer-main {
    grid-template-columns: 1fr;
  }

  .footer-brand {
    grid-column: auto;
  }

  .footer-bottom,
  .article-meta,
  .article-nav {
    align-items: flex-start;
    flex-direction: column;
    gap: 12px;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
  }

  [data-reveal] {
    opacity: 1;
    transform: none;
  }
}