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

.tab-list {
  display: flex;
  max-width: 100%;
  gap: 7px;
  overflow-x: auto;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-card);
  background: var(--color-panel);
  padding: 6px;
  scrollbar-width: thin;
  -webkit-overflow-scrolling: touch;
}

.tab-list [role="tab"] {
  display: inline-flex;
  min-width: max-content;
  min-height: 42px;
  align-items: center;
  justify-content: center;
  border: 1px solid transparent;
  border-radius: var(--radius-control);
  background: transparent;
  color: var(--color-ink-muted);
  padding: 8px 16px;
  font-weight: 680;
  cursor: pointer;
}

.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-brand-dark);
  box-shadow: var(--shadow-small);
}

.tab-panel {
  padding-top: 24px;
}

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

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

.toc-nav a {
  display: inline-flex;
  min-width: max-content;
  min-height: 40px;
  align-items: center;
  border-radius: var(--radius-control);
  color: var(--color-ink-muted);
  padding: 7px 13px;
  font-size: 14px;
  font-weight: 650;
  text-decoration: none;
}

.toc-nav a:hover,
.toc-nav a[aria-current="location"] {
  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-card);
  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 19px;
  font-weight: 750;
  cursor: pointer;
  list-style: none;
}

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

.faq-item summary::after {
  display: grid;
  width: 28px;
  height: 28px;
  flex: 0 0 auto;
  place-items: center;
  border-radius: 50%;
  background: var(--color-panel);
  color: var(--color-ink);
  content: "+";
  font-family: var(--font-mono);
  font-size: 18px;
}

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

.faq-answer {
  border-top: 1px solid var(--color-line);
  color: var(--color-ink-muted);
  padding: 16px 19px 19px;
}

.term-card {
  position: relative;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-card);
  background: var(--color-panel);
  color: var(--color-ink);
  padding: 22px;
}

.term-card::before {
  position: absolute;
  top: 22px;
  right: 22px;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--color-brand);
  content: "";
}

.term-card dt {
  padding-right: 28px;
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 820;
}

.term-card dd {
  margin: 9px 0 0;
  color: var(--color-ink-muted);
}

.term-meta {
  display: inline-flex;
  max-width: 100%;
  margin-top: 15px;
  border-radius: var(--radius-pill);
  background: var(--color-page);
  color: var(--color-ink-muted);
  padding: 4px 10px;
  font-size: 12px;
  font-weight: 650;
  overflow: hidden;
}

.download-card {
  display: flex;
  min-height: 100%;
  flex-direction: column;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-panel);
  background: var(--color-page);
  color: var(--color-ink);
  padding: 24px;
  box-shadow: var(--shadow-card);
}

.download-card-head {
  display: flex;
  align-items: flex-start;
  gap: 15px;
}

.download-card-icon {
  width: 52px;
  height: 52px;
  flex: 0 0 auto;
}

.download-card-title {
  flex: 1;
}

.download-card-title h3 {
  margin-bottom: 4px;
  font-size: 21px;
}

.download-card-title p {
  margin: 0;
  color: var(--color-ink-muted);
  font-size: 13px;
}

.download-card-body {
  flex: 1;
  margin-top: 17px;
  color: var(--color-ink-muted);
}

.download-card-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 9px;
  margin-top: 20px;
}

.download-card-actions .button {
  flex: 1 1 auto;
}

.version-slot:empty {
  display: none;
}

.badge-row,
.chip-row,
.platform-row {
  display: flex;
  max-width: 100%;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
}

.badge,
.chip,
.platform-chip {
  display: inline-flex;
  max-width: 100%;
  align-items: center;
  gap: 7px;
  border-radius: var(--radius-pill);
  font-size: 12px;
  font-weight: 720;
  line-height: 1.3;
}

.badge,
.chip {
  overflow: hidden;
  padding: 5px 10px;
}

.badge-recommended {
  background: var(--color-brand-soft);
  color: var(--color-brand-dark);
}

.badge-primary {
  background: var(--color-brand);
  color: var(--color-white);
}

.badge-maintained {
  background: var(--color-panel-strong);
  color: var(--color-ink);
}

.badge-stopped {
  background: var(--color-danger);
  color: var(--color-white);
}

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

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

.chip {
  border: 1px solid var(--color-line);
  background: var(--color-page);
  color: var(--color-ink-muted);
}

.platform-chip {
  min-height: 34px;
  border: 1px solid var(--color-line);
  background: var(--color-page);
  color: var(--color-ink-muted);
  padding: 6px 13px;
  text-decoration: none;
}

.platform-chip:hover {
  border-color: var(--color-line-strong);
  color: var(--color-ink);
}

.platform-chip svg {
  width: 14px;
  height: 14px;
  flex: 0 0 auto;
}

.blog-card {
  display: flex;
  min-height: 100%;
  flex-direction: column;
  border-radius: var(--radius-panel);
  background: var(--color-panel);
  color: var(--color-ink);
  padding: 25px;
  text-decoration: none;
  transition: transform var(--duration-fast) ease, box-shadow var(--duration-fast) ease;
}

.blog-card:hover {
  color: var(--color-ink);
  transform: translateY(-3px);
  box-shadow: var(--shadow-card);
}

.blog-card-meta {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 9px;
  margin-bottom: 15px;
  color: var(--color-ink-muted);
  font-family: var(--font-mono);
  font-size: 12px;
}

.blog-card h3 {
  font-size: 22px;
}

.blog-card p {
  flex: 1;
  color: var(--color-ink-muted);
}

.blog-card-more {
  margin-top: 17px;
  color: var(--color-brand-dark);
  font-weight: 750;
}

.callout {
  position: relative;
  margin: 24px 0;
  border: 1px solid var(--color-line);
  border-left: 5px solid var(--color-brand);
  border-radius: 0 var(--radius-card) var(--radius-card) 0;
  background: var(--color-brand-soft);
  color: var(--color-ink);
  padding: 18px 20px;
}

.callout strong:first-child {
  display: block;
  margin-bottom: 5px;
}

.callout-success {
  border-left-color: var(--color-success);
  background: var(--color-panel);
  color: var(--color-ink);
}

.callout-warning {
  border-left-color: var(--color-warning);
  background: var(--color-panel);
  color: var(--color-ink);
}

.callout-danger {
  border-left-color: var(--color-danger);
  background: var(--color-panel);
  color: var(--color-ink);
}

.dl-fab {
  position: fixed;
  right: max(16px, var(--gutter));
  bottom: max(16px, var(--gutter));
  z-index: 70;
  display: flex;
  max-width: min(320px, calc(100vw - 32px));
  align-items: center;
  gap: 12px;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-card);
  background: var(--color-page);
  color: var(--color-ink);
  padding: 12px 15px 12px 12px;
  box-shadow: var(--shadow-float);
  text-decoration: none;
}

.dl-fab:hover {
  color: var(--color-ink);
  transform: translateY(-2px);
}

.dl-fab-icon {
  display: grid;
  width: 42px;
  height: 42px;
  flex: 0 0 auto;
  place-items: center;
  border-radius: var(--radius-control);
  background: var(--color-brand);
  color: var(--color-white);
}

.dl-fab-icon svg {
  width: 20px;
  height: 20px;
}

.dl-fab-copy {
  display: grid;
  line-height: 1.35;
}

.dl-fab-copy strong {
  font-size: 14px;
}

.dl-fab-copy span {
  color: var(--color-ink-muted);
  font-size: 12px;
}

.end-download-card {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  margin-top: 42px;
  border-radius: var(--radius-panel);
  background: var(--color-panel);
  color: var(--color-ink);
  padding: clamp(22px, 4vw, 34px);
}

.end-download-card-copy {
  max-width: 620px;
}

.end-download-card h2,
.end-download-card h3 {
  margin-bottom: 7px;
}

.data-table {
  min-width: 620px;
}

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

.ui-window {
  overflow: hidden;
  border: 1px solid var(--color-line-strong);
  border-radius: var(--radius-window);
  background: var(--color-page);
  color: var(--color-ink);
  box-shadow: var(--shadow-window);
}

.ui-titlebar {
  display: flex;
  height: 42px;
  align-items: center;
  border-bottom: 1px solid var(--color-line);
  background: var(--color-panel);
  color: var(--color-ink-muted);
  padding: 0 16px;
}

.traffic-lights {
  display: flex;
  flex: 0 0 auto;
  gap: 8px;
}

.traffic-lights i {
  width: 12px;
  height: 12px;
  flex: 0 0 auto;
  border-radius: 50%;
}

.light-red {
  background: var(--color-danger);
}

.light-yellow {
  background: var(--color-yellow);
}

.light-green {
  background: var(--color-success);
}

.ui-title {
  flex: 1;
  margin-right: 52px;
  color: var(--color-ink-muted);
  font-size: 13px;
  font-weight: 650;
  text-align: center;
}

.ui-window-body {
  display: grid;
  grid-template-columns: 184px minmax(0, 1fr);
}

.ui-sidebar {
  display: flex;
  flex-direction: column;
  gap: 2px;
  border-right: 1px solid var(--color-line);
  background: var(--color-panel);
  color: var(--color-ink-muted);
  padding: 14px 10px;
}

.ui-side-item {
  display: flex;
  align-items: center;
  gap: 9px;
  border-radius: var(--radius-control);
  padding: 8px 12px;
  font-size: 14px;
  font-weight: 550;
}

.ui-side-item i {
  width: 6px;
  height: 6px;
  flex: 0 0 auto;
  border-radius: 50%;
  background: var(--color-line-strong);
}

.ui-side-item.is-active {
  background: var(--color-panel-strong);
  color: var(--color-ink);
  font-weight: 700;
}

.ui-side-item.is-active i {
  background: var(--color-brand);
}

.ui-main {
  background: var(--color-page);
  color: var(--color-ink);
  padding: 18px 26px 20px;
}

.ui-main-head,
.setting-line {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 22px;
}

.ui-main-head {
  border-bottom: 1px solid var(--color-line);
  padding-bottom: 13px;
}

.ui-main-head h2,
.ui-main-head h3 {
  margin: 0;
  font-size: 17px;
}

.core-state {
  display: inline-flex;
  flex: 0 0 auto;
  align-items: center;
  gap: 7px;
  color: var(--color-ink-muted);
  font: 12px var(--font-mono);
}

.core-state i {
  width: 8px;
  height: 8px;
  flex: 0 0 auto;
  border-radius: 50%;
  background: var(--color-success);
}

.setting-line {
  border-bottom: 1px solid var(--color-line);
  padding: 13px 0;
}

.setting-line:last-child {
  border-bottom: 0;
  padding-bottom: 4px;
}

.setting-copy b {
  display: block;
  font-size: 14px;
}

.setting-copy span {
  display: block;
  margin-top: 1px;
  color: var(--color-ink-muted);
  font-size: 12px;
}

.demo-switch {
  position: relative;
  width: 42px;
  height: 24px;
  flex: 0 0 auto;
  border: 1px solid var(--color-line-strong);
  border-radius: var(--radius-pill);
  background: var(--color-panel-strong);
}

.demo-switch::after {
  position: absolute;
  top: 2px;
  left: 2px;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--color-white);
  box-shadow: var(--shadow-small);
  content: "";
}

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

.demo-switch.is-on::after {
  right: 2px;
  left: auto;
}

.demo-segment {
  display: inline-flex;
  flex: 0 0 auto;
  gap: 3px;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-control);
  background: var(--color-panel-strong);
  padding: 3px;
}

.demo-segment span {
  border-radius: var(--radius-small);
  color: var(--color-ink-muted);
  padding: 4px 10px;
  font: 11px var(--font-mono);
}

.demo-segment .is-selected {
  background: var(--color-page);
  color: var(--color-brand-dark);
  font-weight: 750;
  box-shadow: var(--shadow-small);
}

@media (max-width: 640px) {
  .toc-nav {
    top: 6px;
  }

  .download-card,
  .blog-card,
  .term-card {
    padding: 19px;
  }

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

  .end-download-card .button {
    width: 100%;
  }

  .ui-window-body {
    grid-template-columns: 1fr;
  }

  .ui-sidebar {
    flex-direction: row;
    flex-wrap: wrap;
    border-right: 0;
    border-bottom: 1px solid var(--color-line);
  }

  .ui-side-item {
    padding: 7px 9px;
    font-size: 12px;
  }

  .ui-main {
    padding: 16px;
  }

  .setting-line {
    gap: 12px;
  }

  .setting-copy span {
    font-size: 11px;
  }

  .demo-segment span {
    padding-inline: 7px;
  }

  .dl-fab {
    right: 16px;
    bottom: 16px;
  }
}