:root {
  --ink: #101010;
  --paper: #fffdf5;
  --panel: #ffffff;
  --yellow: #f7d84a;
  --cyan: #4dd6ff;
  --red: #ff5a4f;
  --green: #62d26f;
  --muted: #ece7d8;
  --disabled: #d7d7d7;
  --disabled-text: #3f3f3f;
  --border: 3px solid var(--ink);
  --shadow: 6px 6px 0 var(--ink);
  --shadow-small: 4px 4px 0 var(--ink);
  --radius: 4px;
  --heading-font: Arial, Helvetica, sans-serif;
  --body-font: Arial, Helvetica, sans-serif;
  --mono-font: Consolas, "Courier New", monospace;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: auto;
}

body {
  margin: 0;
  background:
    linear-gradient(90deg, rgba(16, 16, 16, 0.05) 1px, transparent 1px),
    linear-gradient(0deg, rgba(16, 16, 16, 0.05) 1px, transparent 1px),
    var(--paper);
  background-size: 28px 28px;
  color: var(--ink);
  font-family: var(--body-font);
  font-size: 17px;
  line-height: 1.5;
  letter-spacing: 0;
}

button {
  font: inherit;
}

a {
  color: inherit;
}

a:focus-visible,
button:focus-visible {
  outline: 3px solid var(--ink);
  outline-offset: 2px;
}

main:focus {
  outline: none;
}

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

h1,
h2,
h3,
p,
dl,
ol {
  margin-top: 0;
}

h1,
h2,
h3 {
  font-family: var(--heading-font);
  line-height: 0.98;
}

h1 {
  max-width: 780px;
  margin-bottom: 24px;
  font-size: 72px;
}

h2 {
  margin-bottom: 16px;
  font-size: 44px;
}

h3 {
  margin-bottom: 12px;
  font-size: 24px;
}

p {
  max-width: 780px;
}

.shell {
  width: min(1180px, calc(100% - 40px));
  margin: 0 auto;
}

.skip-link {
  position: fixed;
  top: 12px;
  left: 12px;
  z-index: 100;
  display: inline-flex;
  min-height: 44px;
  align-items: center;
  border: var(--border);
  background: var(--yellow);
  padding: 0 14px;
  box-shadow: var(--shadow-small);
  transform: translateY(-140%);
}

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  border-bottom: var(--border);
  background: var(--paper);
}

.header-inner {
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 18px;
  align-items: center;
  min-height: 74px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 14px;
  min-height: 44px;
  padding-right: 10px;
  font-family: var(--mono-font);
  font-size: 20px;
  font-weight: 800;
  text-decoration: none;
}

.brand-mark {
  display: grid;
  width: 42px;
  height: 42px;
  place-items: center;
  border: var(--border);
  background: var(--yellow);
  box-shadow: var(--shadow-small);
  font-family: var(--mono-font);
  font-size: 16px;
}

.primary-nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 8px;
}

.primary-nav a,
.footer-nav a {
  display: inline-flex;
  min-height: 44px;
  align-items: center;
  border: 2px solid transparent;
  padding: 0 10px;
  font-family: var(--mono-font);
  font-size: 14px;
  text-decoration: none;
}

.primary-nav a:hover,
.footer-nav a:hover {
  border-color: var(--ink);
  background: var(--cyan);
}

.language-link {
  display: inline-flex;
  min-height: 44px;
  align-items: center;
  border: 2px solid var(--ink);
  background: var(--panel);
  padding: 0 10px;
  font-family: var(--mono-font);
  font-size: 13px;
  font-weight: 800;
  text-decoration: none;
}

.language-link:hover {
  background: var(--cyan);
}

.site-footer a:focus-visible {
  outline-color: var(--yellow);
  background: var(--paper);
  color: var(--ink);
}

.nav-actions,
.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
}

.nav-actions {
  justify-content: flex-end;
}

.status-chip,
.disabled-chip,
.mock-title,
.nav-status,
.action-status,
.disabled-reason,
.mock-panel,
.experience-card,
.trust-card,
.access-card,
.state-card,
.block {
  min-width: 0;
  overflow-wrap: anywhere;
}

.nav-status,
.action-status,
.disabled-reason {
  font-family: var(--mono-font);
  font-size: 13px;
  line-height: 1.35;
}

.nav-status {
  max-width: 170px;
}

.band-paper {
  background: var(--paper);
}

.band-muted {
  background: var(--muted);
}

.band-panel {
  background: var(--panel);
}

.hero {
  border-bottom: var(--border);
  padding: 62px 0 52px;
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.95fr) minmax(420px, 1.05fr);
  gap: 34px;
  align-items: center;
}

.eyebrow,
.card-kicker,
.mock-panel-title,
.mock-title,
.status-chip,
.state-card h3,
.experience-card dt,
.trust-card dt,
.proof-panel dt {
  font-family: var(--mono-font);
  letter-spacing: 0;
}

.eyebrow {
  margin-bottom: 14px;
  font-size: 14px;
  font-weight: 800;
  text-transform: uppercase;
}

.hero-lede {
  margin-bottom: 20px;
  font-size: 20px;
}

.hero-audience {
  max-width: 700px;
  margin-bottom: 20px;
  border-left: 8px solid var(--cyan);
  background: rgba(255, 253, 245, 0.72);
  padding: 10px 12px;
  font-size: 17px;
  font-weight: 800;
  line-height: 1.45;
}

.launch-strip {
  width: fit-content;
  max-width: 100%;
  margin-bottom: 20px;
  border: var(--border);
  background: var(--yellow);
  padding: 12px 14px;
  box-shadow: var(--shadow-small);
  font-family: var(--mono-font);
  font-size: 15px;
  font-weight: 800;
  overflow-wrap: anywhere;
}

.action-status {
  max-width: 360px;
}

.product-mock {
  border: var(--border);
  border-radius: 6px;
  background: var(--panel);
  box-shadow: var(--shadow);
  overflow: hidden;
  min-width: 0;
}

.mock-header {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
  justify-content: space-between;
  border-bottom: var(--border);
  background: var(--ink);
  color: var(--paper);
  padding: 12px;
}

.mock-title {
  font-size: 14px;
}

.status-chip {
  display: inline-flex;
  min-height: 30px;
  align-items: center;
  border: 2px solid var(--ink);
  border-radius: var(--radius);
  padding: 4px 8px;
  background: var(--muted);
  color: var(--ink);
  font-size: 12px;
  font-weight: 800;
}

.status-illustrative {
  background: var(--yellow);
}

.mock-columns {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  min-width: 0;
}

.mobile-mock-summary {
  display: none;
}

.mock-panel {
  min-height: 270px;
  padding: 16px;
}

.mock-panel + .mock-panel {
  border-left: var(--border);
}

.mock-panel-title {
  margin-bottom: 12px;
  font-size: 14px;
  text-transform: uppercase;
  font-weight: 800;
}

.mock-panel p {
  font-size: 15px;
  line-height: 1.35;
}

.mock-panel-cyan {
  background: var(--cyan);
}

.mock-panel-yellow {
  background: var(--yellow);
}

.mock-panel-green {
  background: var(--green);
}

.experience-card dl,
.trust-card dl,
.proof-panel dl {
  display: grid;
  gap: 10px;
  margin-bottom: 0;
}

.experience-card dl div,
.trust-card dl div,
.proof-panel dl div {
  border-top: 2px solid var(--ink);
  padding-top: 8px;
}

.experience-card dt,
.trust-card dt,
.proof-panel dt {
  margin-bottom: 2px;
  font-size: 12px;
  font-weight: 800;
  text-transform: uppercase;
}

.experience-card dd,
.trust-card dd,
.proof-panel dd {
  margin: 0;
  font-size: 14px;
}

.trust-label {
  border: 2px solid var(--ink);
  background: var(--paper);
  padding: 8px;
  font-family: var(--mono-font);
  font-weight: 800;
}

.warning-text {
  border-left: 8px solid var(--red);
  background: var(--paper);
  padding: 8px 10px;
  font-family: var(--mono-font);
  font-size: 14px;
  font-weight: 800;
}

.section {
  border-bottom: var(--border);
  padding: 78px 0;
  scroll-margin-top: 92px;
}

#problem {
  padding-top: 52px;
}

.section-heading {
  max-width: 760px;
  margin-bottom: 28px;
}

.section-heading.wide {
  max-width: 920px;
}

.section-heading p {
  font-size: 18px;
}

.problem-grid,
.trust-grid,
.access-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.block,
.state-card,
.experience-card,
.trust-card,
.access-card,
.proof-panel {
  border: var(--border);
  border-radius: var(--radius);
  background: var(--panel);
  box-shadow: var(--shadow);
  padding: 20px;
}

.block {
  min-height: 190px;
}

.block p,
.state-card p,
.access-card p,
.experience-card p,
.trust-card p {
  margin-bottom: 0;
}

.accent-yellow {
  background: var(--yellow);
}

.accent-red {
  background: var(--red);
}

.accent-cyan {
  background: var(--cyan);
}

.accent-green {
  background: var(--green);
}

.accent-muted {
  background: var(--muted);
}

.state-card {
  min-height: 165px;
  padding: 14px;
  box-shadow: var(--shadow-small);
}

.state-card h3 {
  font-size: 15px;
  line-height: 1.2;
  overflow-wrap: anywhere;
}

.state-card p {
  font-size: 14px;
}

.card-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) repeat(2, minmax(0, 0.85fr));
  gap: 18px;
}

.featured-card {
  grid-row: auto;
}

.card-kicker {
  display: inline-flex;
  min-height: 32px;
  align-items: center;
  margin-bottom: 16px;
  border: 2px solid var(--ink);
  background: var(--cyan);
  padding: 4px 8px;
  font-size: 12px;
  font-weight: 800;
  text-transform: uppercase;
}

.experience-card h3 {
  line-height: 1.08;
}

.compact-card {
  min-height: 230px;
}

.compact-card p {
  font-family: var(--mono-font);
  font-size: 14px;
}

.split-layout,
.proof-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.85fr) minmax(420px, 1.15fr);
  gap: 34px;
  align-items: start;
}

.writer-flow {
  display: grid;
  gap: 10px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.writer-flow li {
  border: var(--border);
  background: var(--panel);
  padding: 14px 16px;
  box-shadow: var(--shadow-small);
  font-family: var(--mono-font);
  font-weight: 800;
}

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

.trust-points {
  display: grid;
  gap: 10px;
  margin: 0;
  padding-left: 20px;
  line-height: 1.55;
}

.approval-card {
  background: var(--panel);
}

.revocation-card {
  background: var(--panel);
}

.trust-note {
  margin-top: 18px;
  border: 2px solid var(--ink);
  background: var(--paper);
  padding: 10px;
  font-family: var(--mono-font);
  font-size: 14px;
  font-weight: 800;
}

.access-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.access-card {
  display: grid;
  gap: 10px;
  align-content: start;
  min-height: 260px;
  background: var(--muted);
}

.access-card h3 {
  overflow-wrap: anywhere;
}

.disabled-chip {
  display: block;
  width: 100%;
  border: var(--border);
  border-radius: var(--radius);
  background: var(--disabled);
  color: var(--disabled-text);
  padding: 10px 12px;
  font-family: var(--mono-font);
  font-weight: 800;
  line-height: 1.35;
}

.disabled-reason {
  display: block;
  color: var(--disabled-text);
  font-weight: 800;
}

.proof-panel {
  background: var(--cyan);
}

.site-footer {
  background: var(--ink);
  color: var(--paper);
  padding: 42px 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(180px, 0.6fr) minmax(0, 1.1fr);
  gap: 26px;
  align-items: start;
}

.footer-brand {
  color: var(--paper);
}

.footer-brand .brand-mark {
  color: var(--ink);
}

.footer-nav {
  display: grid;
  gap: 6px;
}

.footer-status {
  display: grid;
  gap: 10px;
  font-family: var(--mono-font);
  font-size: 13px;
}

.footer-status p,
.site-footer p {
  margin-bottom: 0;
}

.en-page .eyebrow,
.en-page .card-kicker {
  text-transform: none;
}

.en-page .section-heading {
  display: grid;
  grid-template-columns: 10px minmax(0, 1fr);
  column-gap: 18px;
  align-items: start;
  max-width: 48rem;
  margin-bottom: 36px;
  padding-left: 0;
}

.en-page .section-heading::before {
  content: "";
  grid-column: 1;
  grid-row: 1 / 4;
  align-self: stretch;
  width: 8px;
  min-height: 64px;
  border: 2px solid var(--ink);
  background: var(--cyan);
}

.en-page .section-heading > * {
  grid-column: 2;
}

.en-page .section-heading.wide {
  max-width: 58rem;
}

.en-page .section-heading h2 {
  max-width: 50rem;
  margin-bottom: 16px;
}

.en-page .section-heading > p:not(.eyebrow) {
  max-width: 42rem;
  margin-left: 3px;
  color: #33302c;
  font-size: 18px;
  line-height: 1.65;
}

.en-page .block p,
.en-page .state-card p,
.en-page .access-card p,
.en-page .trust-card p {
  color: #34312d;
  line-height: 1.55;
}

.en-page .accent-red p,
.ja-page .accent-red p {
  color: var(--ink);
}

.en-page .card-summary {
  max-width: 32rem;
  margin: -2px 0 16px;
  border-left: 8px solid var(--ink);
  background: rgba(255, 253, 245, 0.86);
  padding: 10px 12px;
  font-family: var(--body-font);
  font-size: 16px;
  font-weight: 800;
  line-height: 1.45;
}

.en-page .compact-card p:not(.card-summary) {
  font-family: var(--body-font);
  font-size: 15px;
  line-height: 1.55;
}

.en-page .featured-card h3 {
  max-width: 34rem;
  font-size: 30px;
}

.en-page .featured-card .card-summary {
  font-size: 18px;
}

.en-page .experience-card dl,
.en-page .trust-card dl,
.en-page .proof-panel dl {
  gap: 0;
  border: 2px solid rgba(16, 16, 16, 0.7);
  background: rgba(255, 253, 245, 0.62);
  padding: 10px 12px;
}

.en-page .experience-card dl div,
.en-page .trust-card dl div,
.en-page .proof-panel dl div {
  display: grid;
  grid-template-columns: minmax(8rem, 0.42fr) minmax(0, 1fr);
  gap: 10px;
  border-top: 1px solid rgba(16, 16, 16, 0.36);
  padding: 6px 0;
}

.en-page .experience-card dl div:first-child,
.en-page .trust-card dl div:first-child,
.en-page .proof-panel dl div:first-child {
  border-top: 0;
}

.en-page .experience-card dt,
.en-page .trust-card dt,
.en-page .proof-panel dt {
  margin-bottom: 0;
  color: #56514a;
  font-size: 10px;
  line-height: 1.35;
  text-transform: none;
}

.en-page .experience-card dd,
.en-page .trust-card dd,
.en-page .proof-panel dd {
  color: #252525;
  font-size: 13px;
  line-height: 1.48;
}

.en-page .state-card {
  background: var(--paper);
}

.en-page .state-card h3 {
  margin-bottom: 8px;
}

.ja-page {
  --ja-heading-font: "BIZ UDPGothic", "Yu Gothic", "YuGothic", "Hiragino Kaku Gothic ProN", "Noto Sans JP", Meiryo, sans-serif;
  --ja-body-font: "BIZ UDPGothic", "Yu Gothic", "YuGothic", "Hiragino Kaku Gothic ProN", "Noto Sans JP", Meiryo, sans-serif;
  --ja-code-font: "SFMono-Regular", Consolas, "Liberation Mono", "Yu Gothic", monospace;
  --shadow: 4px 4px 0 var(--ink);
  --shadow-small: 3px 3px 0 var(--ink);
  font-family: var(--ja-body-font);
  line-height: 1.75;
}

.ja-page h1,
.ja-page h2,
.ja-page h3 {
  font-family: var(--ja-heading-font);
  line-height: 1.16;
}

.ja-page h1 {
  max-width: 34rem;
  font-size: 56px;
}

.ja-page h2 {
  font-size: 40px;
}

.ja-page h3 {
  line-height: 1.22;
}

.ja-page p {
  max-width: 38rem;
}

.ja-page .hero-lede {
  max-width: 34rem;
  line-height: 1.7;
}

.ja-page .hero-audience {
  max-width: 34rem;
  border-left-color: var(--yellow);
  font-size: 16px;
  line-height: 1.65;
}

.ja-page .eyebrow,
.ja-page .card-kicker,
.ja-page .mock-panel-title,
.ja-page .mock-title,
.ja-page .status-chip,
.ja-page .state-card h3,
.ja-page .experience-card dt,
.ja-page .trust-card dt,
.ja-page .proof-panel dt,
.ja-page .nav-status,
.ja-page .action-status,
.ja-page .disabled-reason,
.ja-page .disabled-chip,
.ja-page .footer-status,
.ja-page .writer-flow li,
.ja-page .trust-note {
  font-family: var(--ja-code-font);
  text-transform: none;
}

.ja-page .eyebrow {
  font-size: 13px;
}

.ja-page .primary-nav a,
.ja-page .footer-nav a,
.ja-page .language-link {
  font-family: var(--ja-body-font);
  font-weight: 800;
}

.ja-page .launch-strip {
  font-family: var(--ja-body-font);
  line-height: 1.6;
}

.ja-page .hero-actions {
  align-items: flex-start;
}

.ja-page .product-mock {
  box-shadow: var(--shadow);
}

.ja-page .mock-panel {
  min-height: 292px;
  line-height: 1.58;
}

.ja-page .mock-panel-cyan,
.ja-page .mock-panel-yellow,
.ja-page .mock-panel-green {
  background: var(--panel);
}

.ja-page .mock-panel-cyan {
  border-top: 12px solid var(--cyan);
}

.ja-page .mock-panel-yellow {
  border-top: 12px solid var(--yellow);
}

.ja-page .mock-panel-green {
  border-top: 12px solid var(--green);
}

.ja-page .mock-panel p,
.ja-page .experience-card dd,
.ja-page .trust-card dd,
.ja-page .proof-panel dd {
  line-height: 1.58;
}

.ja-page .mock-panel-title {
  margin-bottom: 4px;
  font-size: 16px;
}

.ja-page .warning-text {
  font-family: var(--ja-body-font);
  line-height: 1.55;
}

.ja-page .section-heading {
  display: grid;
  grid-template-columns: 10px minmax(0, 1fr);
  column-gap: 18px;
  align-items: start;
  max-width: 48rem;
  margin-bottom: 38px;
  padding-left: 0;
}

.ja-page .section-heading::before {
  content: "";
  grid-column: 1;
  grid-row: 1 / 4;
  align-self: stretch;
  width: 8px;
  min-height: 72px;
  border: 2px solid var(--ink);
  background: var(--yellow);
}

.ja-page .section-heading > * {
  grid-column: 2;
}

.ja-page .section-heading.wide {
  max-width: 57rem;
}

.ja-page .section-heading .eyebrow {
  margin-bottom: 10px;
  color: var(--ink);
  font-size: 13px;
  line-height: 1.35;
}

.ja-page .section-heading h2 {
  max-width: 46rem;
  margin-bottom: 18px;
}

.ja-page .section-heading > p:not(.eyebrow) {
  max-width: 38rem;
  margin-left: 3px;
  color: #34312d;
  font-size: 17px;
  line-height: 1.78;
}

.ja-page .block,
.ja-page .state-card,
.ja-page .experience-card,
.ja-page .trust-card,
.ja-page .access-card,
.ja-page .proof-panel {
  box-shadow: var(--shadow-small);
}

.ja-page .card-kicker {
  background: var(--yellow);
}

.ja-page .card-summary {
  max-width: 30rem;
  margin: -2px 0 16px;
  border-left: 8px solid var(--ink);
  background: rgba(255, 253, 245, 0.82);
  padding: 10px 12px;
  font-size: 16px;
  font-weight: 800;
  line-height: 1.55;
}

.ja-page .compact-card p:not(.card-summary) {
  font-family: var(--ja-body-font);
  font-size: 16px;
  line-height: 1.7;
}

.ja-page .featured-card .card-summary {
  font-size: 18px;
}

.ja-page .experience-card h3,
.ja-page .access-card h3 {
  max-width: 30rem;
}

.ja-page .featured-card h3 {
  max-width: 34rem;
  font-size: 29px;
}

.ja-page .compact-card {
  min-height: 250px;
}

.ja-page .experience-card dl,
.ja-page .trust-card dl,
.ja-page .proof-panel dl {
  gap: 0;
  border: 2px solid rgba(16, 16, 16, 0.68);
  background: rgba(255, 253, 245, 0.58);
  padding: 10px 12px;
}

.ja-page .experience-card dl div,
.ja-page .trust-card dl div,
.ja-page .proof-panel dl div {
  display: grid;
  grid-template-columns: minmax(8rem, 0.44fr) minmax(0, 1fr);
  gap: 10px;
  border-top: 1px solid rgba(16, 16, 16, 0.36);
  padding: 6px 0;
}

.ja-page .experience-card dl div:first-child,
.ja-page .trust-card dl div:first-child,
.ja-page .proof-panel dl div:first-child {
  border-top: 0;
}

.ja-page .experience-card dt,
.ja-page .trust-card dt,
.ja-page .proof-panel dt {
  margin-bottom: 0;
  color: #57524a;
  font-size: 10px;
  line-height: 1.35;
}

.ja-page .experience-card dd,
.ja-page .trust-card dd,
.ja-page .proof-panel dd {
  color: #252525;
  font-size: 13px;
  line-height: 1.5;
}

.ja-page .state-card {
  background: var(--paper);
}

.ja-page .state-card h3 {
  margin-bottom: 8px;
}

.ja-page .state-card p {
  color: #3d3a35;
  line-height: 1.55;
}

.ja-page .problem-grid {
  align-items: start;
}

.ja-page .block {
  min-height: 0;
}

.ja-page .access-card {
  min-height: 240px;
}

.ja-page .footer-status {
  line-height: 1.65;
}

.zh-page {
  --ja-heading-font: "Microsoft YaHei", "PingFang SC", "Noto Sans SC", "Source Han Sans SC", "Hiragino Sans GB", Arial, sans-serif;
  --ja-body-font: "Microsoft YaHei", "PingFang SC", "Noto Sans SC", "Source Han Sans SC", "Hiragino Sans GB", Arial, sans-serif;
  --ja-code-font: "SFMono-Regular", Consolas, "Liberation Mono", "Microsoft YaHei", monospace;
}

.zh-page h1 {
  max-width: 35rem;
  font-size: 54px;
}

.zh-page .hero-lede,
.zh-page .hero-audience {
  max-width: 35rem;
}

.zh-page .section-heading::before {
  background: var(--cyan);
}

.zh-page .card-kicker {
  background: var(--cyan);
}

.zh-page .featured-card h3 {
  max-width: 34rem;
  font-size: 28px;
}

@media (max-width: 1100px) {
  h1 {
    font-size: 56px;
  }

  h2 {
    font-size: 38px;
  }

  .header-inner {
    grid-template-columns: auto 1fr;
  }

  .primary-nav {
    order: 3;
    grid-column: 1 / -1;
    justify-content: flex-start;
    padding-bottom: 12px;
  }

  .hero-grid,
  .split-layout,
  .proof-grid {
    grid-template-columns: 1fr;
  }

  .mock-panel {
    min-height: 220px;
  }

  .ja-page h1 {
    font-size: 44px;
  }

  .zh-page h1 {
    font-size: 43px;
  }

  .ja-page .mock-panel {
    min-height: 235px;
  }

  .access-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .card-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 768px) and (max-width: 899px) {
  .section {
    scroll-margin-top: 146px;
  }
}

@media (min-width: 900px) and (max-width: 1100px) {
  .header-inner {
    grid-template-columns: auto 1fr auto;
    min-height: 74px;
  }

  .primary-nav {
    order: initial;
    grid-column: auto;
    justify-content: center;
    padding-bottom: 0;
  }

  .nav-status {
    display: none;
  }

  .ja-page .nav-status {
    display: inline-flex;
  }

  h1 {
    font-size: 42px;
  }

  .hero {
    padding: 42px 0;
  }

  .hero-grid {
    grid-template-columns: minmax(0, 0.75fr) minmax(520px, 1.25fr);
    gap: 24px;
    align-items: center;
  }

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

  .mock-panel {
    min-height: 250px;
    padding: 14px;
  }

  .mock-panel p {
    font-size: 13px;
  }

  .ja-page h1 {
    font-size: 42px;
  }

  .zh-page h1 {
    font-size: 40px;
  }
}

@media (max-width: 767px) {
  html,
  body {
    max-width: 100%;
    overflow-x: clip;
  }

  body {
    font-size: 16px;
  }

  h1 {
    margin-bottom: 10px;
    max-width: 320px;
    font-size: 36px;
  }

  h2 {
    font-size: 32px;
  }

  h3 {
    font-size: 22px;
  }

  .shell {
    width: min(100% - 48px, 640px);
  }

  .header-inner {
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 10px;
    min-height: 64px;
  }

  .primary-nav,
  .nav-status {
    display: none;
  }

  .ja-page .nav-status {
    display: none;
  }

  .nav-actions {
    display: flex;
    justify-content: flex-end;
    min-width: 0;
  }

  .nav-actions .status-chip {
    display: none;
  }

  .brand {
    gap: 11px;
    min-width: 0;
    padding-right: 4px;
    font-size: 18px;
  }

  .brand span:last-child {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
  }

  .brand-mark {
    width: 40px;
    height: 40px;
  }

  .hero {
    padding: 8px 0 12px;
  }

  .hero-grid {
    gap: 16px;
  }

  .eyebrow {
    margin-bottom: 8px;
    font-size: 12px;
  }

  .hero-lede {
    margin-bottom: 10px;
    line-height: 1.28;
    font-size: 16px;
    overflow-wrap: anywhere;
  }

  .hero-audience {
    margin-bottom: 10px;
    padding: 8px 10px;
    font-size: 14px;
    line-height: 1.38;
  }

  .launch-strip {
    width: 100%;
    margin-bottom: 10px;
    padding: 9px;
    font-size: 13px;
    line-height: 1.28;
  }

  .hero-actions {
    gap: 8px;
  }

  .action-status {
    font-size: 12px;
  }

  .hero-actions .action-status {
    display: none;
  }

  .hero-disabled-reason {
    display: block;
    width: 100%;
  }

  .product-mock {
    box-shadow: var(--shadow-small);
  }

  .mock-header {
    padding: 8px;
  }

  .mock-title {
    display: none;
  }

  .mock-columns {
    display: none;
  }

  .mobile-mock-summary {
    display: grid;
    gap: 6px;
    padding: 8px;
    background: var(--panel);
  }

  .mobile-mock-summary p {
    margin: 0;
    font-family: var(--mono-font);
    font-size: 13px;
    line-height: 1.2;
    overflow-wrap: anywhere;
  }

  .mobile-mock-row,
  .mobile-mock-warning {
    border: 2px solid var(--ink);
    padding: 5px 8px;
  }

  .mobile-mock-private {
    display: grid;
    gap: 2px;
    background: var(--green);
  }

  .mobile-mock-warning {
    border-left: 8px solid var(--red);
    background: var(--paper);
    font-weight: 800;
  }

  .mobile-mock-abstention {
    background: var(--yellow);
    font-weight: 800;
  }

  .section {
    padding: 56px 0;
  }

  .section-heading {
    margin-bottom: 22px;
  }

  .en-page .section-heading {
    margin-bottom: 28px;
    grid-template-columns: 8px minmax(0, 1fr);
    column-gap: 14px;
    padding-left: 0;
  }

  .en-page .section-heading::before {
    width: 6px;
    min-height: 54px;
  }

  .ja-page .section-heading {
    margin-bottom: 28px;
    grid-template-columns: 8px minmax(0, 1fr);
    column-gap: 14px;
    padding-left: 0;
  }

  .ja-page .section-heading::before {
    width: 6px;
    min-height: 58px;
  }

  .problem-grid,
  .trust-grid,
  .access-grid,
  .card-grid,
  .footer-grid {
    grid-template-columns: 1fr;
  }

  .block,
  .state-card,
  .experience-card,
  .trust-card,
  .access-card,
  .proof-panel {
    box-shadow: var(--shadow-small);
  }

  .block {
    min-height: 0;
  }

  .featured-card {
    grid-row: auto;
  }

  .compact-card,
  .access-card {
    min-height: 0;
  }

  .footer-nav {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .ja-page {
    font-size: 16px;
  }

  .ja-page h1 {
    max-width: 21rem;
    font-size: 33px;
    line-height: 1.16;
  }

  .ja-page h2 {
    font-size: 30px;
  }

  .ja-page .hero-lede {
    line-height: 1.62;
    font-size: 16px;
  }

  .ja-page .hero-audience {
    font-size: 15px;
    line-height: 1.55;
  }

  .ja-page p,
  .ja-page dd,
  .ja-page li {
    max-width: 34em;
  }

  .ja-page .hero-audience,
  .ja-page .section-heading > p:not(.eyebrow) {
    max-width: 34em;
  }

  .ja-page .launch-strip {
    line-height: 1.48;
  }

  .ja-page .hero-actions .status-chip {
    min-height: 34px;
  }

  .ja-page .mobile-mock-summary {
    max-height: 240px;
  }

  .ja-page .mobile-mock-summary p {
    font-size: 12px;
    line-height: 1.25;
  }

  .ja-page .state-card,
  .ja-page .experience-card,
  .ja-page .trust-card,
  .ja-page .access-card,
  .ja-page .proof-panel {
    padding: 16px;
  }

  .en-page .featured-card h3 {
    font-size: 24px;
  }

  .en-page .section-heading > p:not(.eyebrow) {
    margin-left: 2px;
    font-size: 16px;
    line-height: 1.58;
  }

  .en-page .card-summary,
  .en-page .featured-card .card-summary {
    font-size: 15px;
  }

  .en-page .experience-card dl div,
  .en-page .trust-card dl div,
  .en-page .proof-panel dl div {
    grid-template-columns: 1fr;
    gap: 2px;
    padding: 7px 0;
  }

  .ja-page .section-heading > p:not(.eyebrow) {
    margin-left: 2px;
    font-size: 16px;
    line-height: 1.72;
  }

  .ja-page .featured-card h3 {
    font-size: 24px;
  }

  .zh-page h1 {
    max-width: 21rem;
    font-size: 31px;
  }

  .zh-page .hero-lede,
  .zh-page .hero-audience,
  .zh-page .section-heading > p:not(.eyebrow) {
    max-width: 34em;
  }

  .zh-page .featured-card h3 {
    font-size: 23px;
  }

  .ja-page .card-summary,
  .ja-page .featured-card .card-summary {
    font-size: 15px;
  }

  .ja-page .experience-card dl div,
  .ja-page .trust-card dl div,
  .ja-page .proof-panel dl div {
    grid-template-columns: 1fr;
    gap: 2px;
    padding: 7px 0;
  }
}

@media (max-width: 400px) {
  .shell {
    width: min(100% - 32px, 640px);
  }

  h1 {
    font-size: 30px;
  }

  h2 {
    font-size: 29px;
  }

  .ja-page h1 {
    font-size: 31px;
  }

  .zh-page h1 {
    font-size: 29px;
  }

  .ja-page .shell {
    width: min(100% - 36px, 640px);
  }

  .ja-page .hero-lede {
    font-size: 16px;
  }

  .language-link {
    min-height: 38px;
    padding: 0 8px;
    font-size: 13px;
  }
}

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

@media (min-width: 768px) {
  /* Keep section breaks, but let short English cards size to their content. */
  body.en-page .hero {
    padding: 42px 0 38px;
  }

  body.en-page .section {
    padding: 48px 0 42px;
  }

  body.en-page #problem {
    padding-top: 40px;
  }

  body.en-page .section-heading {
    margin-bottom: 20px;
  }

  body.en-page .mock-panel {
    min-height: 160px;
  }

  body.en-page .block,
  body.en-page .state-card,
  body.en-page .access-card {
    min-height: 0;
  }

  body.en-page .access-card {
    gap: 8px;
    padding: 16px;
  }

  body.en-page .problem-grid,
  body.en-page .access-grid,
  body.en-page .card-grid,
  body.en-page .trust-grid {
    align-items: start;
  }

  body.en-page .block,
  body.en-page .state-card,
  body.en-page .experience-card,
  body.en-page .trust-card,
  body.en-page .proof-panel {
    padding: 18px;
  }

  body.en-page .card-kicker {
    margin-bottom: 12px;
  }

  body.en-page .card-summary {
    margin-bottom: 12px;
  }

  body.en-page .trust-note {
    margin-top: 14px;
  }
}