.tab-shell {
  min-width: 0;
}

.tab-list {
  display: flex;
  max-width: 100%;
  gap: 6px;
  padding: 6px;
  overflow-x: auto;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-round);
  background: var(--color-panel);
  -webkit-overflow-scrolling: touch;
  scrollbar-width: thin;
}

.tab-list [role="tab"] {
  min-height: 42px;
  flex: 0 0 auto;
  padding: 8px 18px;
  border: 1px solid transparent;
  border-radius: var(--radius-round);
  background: transparent;
  color: var(--color-muted);
  font-weight: 650;
  white-space: nowrap;
}

.tab-list [role="tab"]:hover {
  color: var(--color-ink);
}

.tab-list [role="tab"].is-active,
.tab-list [role="tab"][aria-selected="true"] {
  border-color: var(--color-line);
  background: var(--color-page);
  color: var(--color-ink);
  box-shadow: var(--shadow-soft);
}

.tab-panel {
  padding-top: 28px;
}

.tab-panel[hidden] {
  display: none;
}

.toc-tabs {
  position: sticky;
  top: 12px;
  z-index: 20;
  display: flex;
  max-width: 100%;
  gap: 7px;
  margin-bottom: 36px;
  padding: 8px;
  overflow-x: auto;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-round);
  background: var(--color-page);
  color: var(--color-ink);
  box-shadow: var(--shadow-soft);
  -webkit-overflow-scrolling: touch;
}

.toc-tabs a {
  min-height: 40px;
  flex: 0 0 auto;
  padding: 8px 15px;
  border-radius: var(--radius-round);
  color: var(--color-muted);
  font-size: 14px;
  white-space: nowrap;
}

.toc-tabs a:hover {
  background: var(--color-panel);
  color: var(--color-ink);
}

.faq-list {
  display: grid;
  gap: 12px;
}

.faq-item {
  overflow: clip;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-md);
  background: var(--color-page);
  color: var(--color-ink);
}

.faq-item summary {
  display: flex;
  min-height: 58px;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding: 16px 20px;
  cursor: pointer;
  font-weight: 700;
  list-style: none;
}

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

.faq-item summary::after {
  width: 24px;
  height: 24px;
  flex-shrink: 0;
  border: 1px solid var(--color-line);
  border-radius: 50%;
  color: var(--color-brand-deep);
  content: "+";
  font-size: 18px;
  line-height: 21px;
  text-align: center;
}

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

.faq-answer {
  padding: 0 20px 20px;
  color: var(--color-muted);
}

.glossary-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.term-card {
  position: relative;
  padding: 25px;
  overflow: clip;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-lg);
  background: var(--color-page);
  color: var(--color-ink);
  box-shadow: var(--shadow-soft);
}

.term-card::before {
  position: absolute;
  top: 0;
  right: 28px;
  left: 28px;
  height: 3px;
  border-radius: 0 0 var(--radius-round) var(--radius-round);
  background: var(--gradient-brand);
  content: "";
}

.term-name {
  margin-bottom: 8px;
  font-family: var(--font-display);
  font-size: 19px;
  font-weight: 750;
}

.term-en {
  margin-bottom: 13px;
  color: var(--color-muted);
  font-family: var(--font-mono);
  font-size: 12px;
}

.term-description {
  color: var(--color-muted);
}

.download-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 20px;
}

.client-card {
  display: flex;
  min-width: 0;
  flex-direction: column;
  gap: 18px;
  padding: 26px;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-xl);
  background: var(--color-page);
  color: var(--color-ink);
  box-shadow: var(--shadow-soft);
}

.client-card.is-featured {
  background: var(--color-panel);
}

.client-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
}

.client-identity {
  display: flex;
  min-width: 0;
  align-items: center;
  gap: 14px;
}

.client-icon {
  width: 52px;
  height: 52px;
  flex-shrink: 0;
}

.client-name {
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 750;
  overflow-wrap: anywhere;
}

.client-summary {
  color: var(--color-muted);
}

.client-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: auto;
}

[data-version] {
  display: none;
  color: var(--color-muted);
  font-family: var(--font-mono);
  font-size: 12px;
}

[data-version]:not(:empty) {
  display: inline;
}

.badge {
  display: inline-flex;
  align-items: center;
  max-width: 100%;
  gap: 6px;
  padding: 4px 10px;
  overflow: hidden;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-round);
  background: var(--color-page);
  color: var(--color-muted);
  font-size: 12px;
  font-weight: 700;
  line-height: 1.35;
}

.badge-primary {
  border-color: var(--color-brand);
  color: var(--color-brand-deep);
}

.badge-success {
  color: var(--color-success);
}

.badge-warning {
  color: var(--color-ink);
}

.badge-retired {
  color: var(--color-danger);
}

.post-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 20px;
}

.post-card {
  display: flex;
  min-width: 0;
  flex-direction: column;
  padding: 24px;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-lg);
  background: var(--color-page);
  color: var(--color-ink);
  box-shadow: var(--shadow-soft);
  transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

.post-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-app);
}

.post-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 9px;
  margin-bottom: 14px;
  color: var(--color-muted);
  font-size: 12px;
}

.post-title {
  margin-bottom: 12px;
  font-family: var(--font-display);
  font-size: 19px;
  font-weight: 750;
  line-height: 1.4;
}

.post-excerpt {
  margin-bottom: 20px;
  color: var(--color-muted);
  font-size: 14px;
}

.post-link {
  margin-top: auto;
  color: var(--color-brand-deep);
  font-weight: 700;
}

.callout {
  position: relative;
  margin-block: 24px;
  padding: 20px 22px 20px 26px;
  overflow: clip;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-md);
  background: var(--color-panel);
  color: var(--color-ink);
}

.callout::before {
  position: absolute;
  top: 14px;
  bottom: 14px;
  left: 0;
  width: 4px;
  border-radius: 0 var(--radius-round) var(--radius-round) 0;
  background: var(--gradient-brand);
  content: "";
}

.callout-title {
  margin-bottom: 6px;
  font-weight: 750;
}

.callout p {
  color: var(--color-muted);
}

.compare-list {
  display: grid;
  gap: 13px;
  list-style: none;
}

.compare-item {
  display: flex;
  align-items: flex-start;
  gap: 11px;
  color: var(--color-muted);
}

.compare-dot {
  display: inline-flex;
  width: 24px;
  height: 24px;
  flex-shrink: 0;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: var(--color-page);
  font-weight: 800;
}

.compare-item.is-good .compare-dot {
  color: var(--color-success);
}

.compare-item.is-bad .compare-dot {
  color: var(--color-danger);
}

.dl-fab {
  position: fixed;
  right: max(18px, var(--gutter));
  bottom: 18px;
  z-index: 70;
  display: flex;
  width: min(360px, calc(100vw - var(--gutter) * 2));
  align-items: center;
  gap: 12px;
  padding: 13px 16px;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-lg);
  background: var(--color-page);
  color: var(--color-ink);
  box-shadow: var(--shadow-app);
}

.dl-fab-icon {
  display: inline-flex;
  width: 42px;
  height: 42px;
  flex-shrink: 0;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-md);
  background: var(--gradient-brand);
  color: var(--color-on-brand);
}

.dl-fab-icon svg {
  width: 21px;
  height: 21px;
}

.dl-fab-copy {
  min-width: 0;
}

.dl-fab-title {
  display: block;
  font-weight: 750;
}

.dl-fab-text {
  display: block;
  color: var(--color-muted);
  font-size: 12px;
}

.end-download-card {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 22px;
  margin-top: 54px;
  padding: 26px;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-xl);
  background: var(--color-panel);
  color: var(--color-ink);
}

.end-download-card__copy {
  max-width: 38em;
}

.end-download-card__copy p {
  margin-top: 7px;
  color: var(--color-muted);
}

.prose > .data-table {
  display: block;
  max-width: 100%;
  min-width: 0;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.hero-preview {
  position: relative;
  overflow-x: clip;
  padding-top: 10px;
  padding-bottom: 30px;
}

.hero-preview-grid {
  display: grid;
  grid-template-columns: 0.84fr 1.16fr;
  gap: 22px;
  align-items: stretch;
}

.hero-bento-copy {
  display: flex;
  min-width: 0;
  flex-direction: column;
  gap: 20px;
}

.hero-main-cell {
  display: flex;
  flex: 1;
  flex-direction: column;
  justify-content: center;
  gap: 18px;
  padding: 40px 38px 32px;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-xl);
  background: var(--color-panel);
  color: var(--color-ink);
}

.hero-title {
  font-size: clamp(34px, 3.2vw, 45px);
  line-height: 1.18;
}

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

.hero-description {
  max-width: 36em;
  color: var(--color-muted);
}

.hero-description strong {
  color: var(--color-ink);
}

.hero-mini-grid {
  display: grid;
  grid-template-columns: 1fr 1fr 1.4fr;
  gap: 20px;
}

.hero-mini {
  display: flex;
  min-height: 98px;
  flex-direction: column;
  justify-content: center;
  gap: 3px;
  padding: 18px 20px 16px;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-lg);
  color: var(--color-ink);
  transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

.hero-mini:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-soft);
}

.hero-mini:nth-child(1) {
  background: var(--color-page);
  box-shadow: var(--shadow-soft);
}

.hero-mini:nth-child(2) {
  background: var(--color-panel-strong);
}

.hero-mini:nth-child(3) {
  background: var(--color-panel);
}

.hero-mini-label {
  color: var(--color-muted);
  font-size: 11px;
  letter-spacing: 0.1em;
}

.hero-mini-value {
  font-family: var(--font-display);
  font-size: 16px;
  font-weight: 750;
}

.hero-mini-value.is-mono {
  font-family: var(--font-mono);
  font-size: 14px;
}

.hero-mini-note {
  color: var(--color-muted);
  font-size: 12px;
}

.hero-stage {
  position: relative;
  display: flex;
  min-height: 590px;
  align-items: center;
  justify-content: center;
  padding: 26px 18px 30px;
  overflow-x: clip;
}

.hero-stage-glow {
  position: absolute;
  inset: 0;
  z-index: 0;
  background: var(--gradient-glow);
  pointer-events: none;
}

.app-window {
  position: relative;
  z-index: 1;
  display: flex;
  width: 100%;
  max-width: 660px;
  min-height: 545px;
  flex-direction: column;
  overflow: hidden;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-xl);
  background: var(--color-page);
  color: var(--color-ink);
  box-shadow: var(--shadow-app);
  transform: rotate(-2deg);
}

.app-chrome {
  display: flex;
  align-items: center;
  gap: 7px;
  padding: 13px 18px;
  border-bottom: 1px solid var(--color-line);
  background: var(--color-page);
  color: var(--color-muted);
}

.chrome-dot {
  width: 10px;
  height: 10px;
  flex-shrink: 0;
  border: 1px solid var(--color-line);
  border-radius: 50%;
  background: var(--color-panel-strong);
}

.chrome-title {
  margin-left: 8px;
  font-family: var(--font-display);
  font-size: 12px;
  font-weight: 650;
}

.app-body {
  display: flex;
  flex: 1;
  min-height: 0;
}

.app-sidebar {
  width: 152px;
  flex-shrink: 0;
  padding: 14px 10px;
  border-right: 1px solid var(--color-line);
  background: var(--color-page);
  color: var(--color-muted);
}

.app-nav-item {
  display: flex;
  align-items: center;
  gap: 9px;
  padding: 9px 12px;
  border-radius: var(--radius-sm);
  font-size: 13px;
}

.app-nav-item + .app-nav-item {
  margin-top: 4px;
}

.app-nav-item svg {
  width: 15px;
  height: 15px;
  flex-shrink: 0;
}

.app-nav-item.is-current {
  background: var(--color-panel);
  color: var(--color-ink);
  font-weight: 700;
}

.app-main {
  display: flex;
  min-width: 0;
  flex: 1;
  flex-direction: column;
  gap: 15px;
  padding: 18px;
  background: var(--color-panel);
  color: var(--color-ink);
}

.app-pane {
  padding: 14px 16px;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-md);
  background: var(--color-page);
  color: var(--color-ink);
}

.app-pane.is-flex {
  flex: 1;
}

.app-pane-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  margin-bottom: 10px;
}

.app-pane-title {
  font-family: var(--font-display);
  font-size: 13px;
  font-weight: 750;
}

.app-pane-action {
  padding: 3px 10px;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-round);
  color: var(--color-brand-deep);
  font-size: 11px;
  font-weight: 700;
}

.profile-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 11px 12px;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-sm);
  background: var(--color-panel);
  color: var(--color-ink);
}

.profile-row + .profile-row {
  margin-top: 8px;
}

.profile-name {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  font-weight: 700;
}

.profile-meta,
.setting-note {
  color: var(--color-muted);
  font-size: 11px;
}

.status-dot {
  width: 7px;
  height: 7px;
  flex-shrink: 0;
  border-radius: 50%;
  background: var(--color-success);
}

.setting-list {
  display: grid;
  align-content: space-evenly;
  height: 100%;
}

.setting-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding: 9px 2px;
}

.setting-row + .setting-row {
  border-top: 1px solid var(--color-panel);
}

.setting-name {
  font-size: 13px;
  font-weight: 700;
}

.toggle-demo {
  position: relative;
  width: 40px;
  height: 23px;
  flex-shrink: 0;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-round);
  background: var(--color-panel-strong);
}

.toggle-demo::after {
  position: absolute;
  top: 2px;
  left: 3px;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--color-page);
  box-shadow: 0 1px 3px var(--color-switch-shadow);
  content: "";
}

.toggle-demo.is-on {
  border-color: var(--color-brand-deep);
  background: var(--gradient-brand);
}

.toggle-demo.is-on::after {
  right: 3px;
  left: auto;
}

.preview-section {
  padding-top: 96px;
  padding-bottom: 96px;
}

.preview-heading {
  margin-bottom: 34px;
}

.preview-heading p {
  max-width: 42em;
  margin-top: 12px;
  color: var(--color-muted);
}

.token-grid {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 14px;
}

.token-card {
  overflow: hidden;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-md);
  background: var(--color-page);
  color: var(--color-ink);
}

.token-swatch {
  height: 92px;
  border-bottom: 1px solid var(--color-line);
}

.token-swatch.is-page {
  background: var(--color-page);
}

.token-swatch.is-panel {
  background: var(--color-panel);
}

.token-swatch.is-panel-strong {
  background: var(--color-panel-strong);
}

.token-swatch.is-brand {
  background: var(--color-brand);
}

.token-swatch.is-brand-deep {
  background: var(--color-brand-deep);
}

.token-swatch.is-ink {
  background: var(--color-ink);
}

.token-swatch.is-muted {
  background: var(--color-muted);
}

.token-swatch.is-success {
  background: var(--color-success);
}

.token-swatch.is-warning {
  background: var(--color-warning);
}

.token-swatch.is-danger {
  background: var(--color-danger);
}

.token-meta {
  padding: 12px;
  font-family: var(--font-mono);
  font-size: 11px;
  overflow-wrap: anywhere;
}

.type-stack {
  display: grid;
  gap: 25px;
}

.type-label {
  margin-bottom: 6px;
  color: var(--color-muted);
  font-family: var(--font-mono);
  font-size: 12px;
}

@media (max-width: 1120px) {
  .hero-preview-grid {
    grid-template-columns: 1fr;
  }

  .hero-stage {
    min-height: 600px;
  }

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

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

@media (max-width: 768px) {
  .download-grid,
  .glossary-grid {
    grid-template-columns: 1fr;
  }

  .end-download-card {
    align-items: flex-start;
    flex-direction: column;
  }

  .toc-tabs {
    top: 8px;
  }
}

@media (max-width: 640px) {
  .hero-main-cell {
    padding: 28px 24px;
  }

  .hero-title {
    font-size: clamp(26px, 7.4vw, 30px);
  }

  .hero-mini-grid,
  .post-grid {
    grid-template-columns: 1fr;
  }

  .hero-stage {
    min-height: 540px;
    padding-inline: 0;
  }

  .app-window {
    min-height: 510px;
    transform: none;
  }

  .app-sidebar {
    width: 92px;
  }

  .app-nav-item {
    padding-inline: 8px;
    font-size: 11px;
  }

  .app-nav-item svg {
    display: none;
  }

  .app-main {
    padding: 10px;
  }

  .app-pane {
    padding: 12px;
  }

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

  .dl-fab {
    right: var(--gutter);
    bottom: 12px;
  }
}