.tab-system {
  display: grid;
  grid-template-columns: 226px minmax(0, 1fr);
  min-width: 0;
  overflow: hidden;
  border: var(--line-thin) solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-panel-deep);
  color: var(--color-text);
}

.tab-list {
  display: flex;
  min-width: 0;
  padding: 13px 10px;
  flex-direction: column;
  gap: 2px;
  border-right: var(--line-thin) solid var(--color-border);
  background: var(--color-panel);
}

.tab-list [role="tab"] {
  position: relative;
  display: flex;
  width: 100%;
  min-height: 44px;
  align-items: center;
  gap: 10px;
  padding: 10px 12px;
  border: 0;
  border-radius: var(--radius-sm);
  background: transparent;
  color: var(--color-text-muted);
  font: 12px/1.4 var(--font-mono);
  text-align: left;
}

.tab-list [role="tab"]::before {
  width: 6px;
  height: 6px;
  flex-shrink: 0;
  border: var(--line-thin) solid var(--color-text-muted);
  border-radius: 50%;
  content: "";
}

.tab-list [role="tab"][aria-selected="true"] {
  background: var(--color-panel-deep);
  color: var(--color-text);
}

.tab-list [role="tab"][aria-selected="true"]::before {
  border-color: var(--color-accent);
  background: var(--color-accent);
}

.tab-list [role="tab"][aria-selected="true"]::after {
  position: absolute;
  top: 11px;
  bottom: 11px;
  left: 0;
  width: 2px;
  border-radius: var(--radius-xs);
  background: var(--color-accent);
  content: "";
}

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

.tab-panel {
  min-width: 0;
  padding: 30px;
  color: var(--color-text-muted);
}

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

.tab-panel p:last-of-type {
  margin-bottom: 18px;
}

.tab-note {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
}

.toc {
  display: flex;
  max-width: 100%;
  margin-bottom: 42px;
  padding: 8px;
  overflow-x: visible;
  flex-wrap: wrap;
  gap: 4px;
  border: var(--line-thin) solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-panel-deep);
  color: var(--color-text);
  scrollbar-width: thin;
}

.toc a {
  display: inline-flex;
  min-height: 40px;
  flex: 0 0 auto;
  align-items: center;
  padding: 7px 12px;
  border-radius: var(--radius-sm);
  color: var(--color-text-muted);
  font: 12px/1.4 var(--font-mono);
}

.toc a:hover,
.toc a[aria-current="true"] {
  background: var(--color-panel);
  color: var(--color-text);
}

.faq-list {
  display: grid;
  gap: 10px;
}

.faq-item {
  min-width: 0;
  border: var(--line-thin) solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-panel-deep);
  color: var(--color-text);
}

.faq-item summary {
  display: flex;
  min-height: 54px;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding: 14px 17px;
  color: var(--color-text);
  font-weight: 500;
  list-style: none;
}

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

.faq-item summary::after {
  width: 9px;
  height: 9px;
  flex-shrink: 0;
  border-right: var(--line-thin) solid var(--color-accent);
  border-bottom: var(--line-thin) solid var(--color-accent);
  content: "";
  transform: rotate(45deg) translateY(-2px);
  transition: transform var(--transition-fast);
}

.faq-item[open] summary::after {
  transform: rotate(225deg) translate(-2px, -2px);
}

.faq-answer {
  padding: 0 17px 17px;
  border-top: var(--line-thin) solid var(--color-border);
  color: var(--color-text-muted);
}

.faq-answer p {
  margin: 14px 0 0;
}

.glossary-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.term-card {
  min-width: 0;
  padding: 22px;
  border: var(--line-thin) solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-panel);
  color: var(--color-text);
}

.term-card dt {
  margin-bottom: 9px;
  color: var(--color-accent);
  font: 600 13px/1.4 var(--font-mono);
}

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

.download-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.client-card {
  position: relative;
  display: flex;
  min-width: 0;
  padding: 24px;
  flex-direction: column;
  border: var(--line-thin) solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-panel);
  color: var(--color-text);
}

.client-card-head {
  display: flex;
  min-width: 0;
  align-items: flex-start;
  gap: 15px;
  margin-bottom: 17px;
}

.client-card-head > img {
  width: 52px;
  height: 52px;
  flex-shrink: 0;
}

.client-card-title {
  min-width: 0;
}

.client-card-title h3 {
  margin-bottom: 4px;
}

.client-card p {
  color: var(--color-text-muted);
}

.client-actions {
  display: flex;
  margin-top: auto;
  flex-wrap: wrap;
  gap: 9px;
}

.version-line {
  margin-bottom: 14px;
  color: var(--color-text-muted);
  font: 11.5px/1.5 var(--font-mono);
}

.recommend-badge,
.primary-badge,
.retired-badge {
  display: inline-flex;
  max-width: 100%;
  align-items: center;
  padding: 3px 9px;
  overflow: hidden;
  border-radius: var(--radius-sm);
  font: 600 10.5px/1.5 var(--font-mono);
  text-overflow: ellipsis;
}

.primary-badge {
  border: var(--line-thin) solid var(--color-accent-strong);
  background: var(--color-accent-soft);
  color: var(--color-accent);
}

.recommend-badge {
  border: var(--line-thin) solid var(--color-success);
  background: var(--color-success-soft);
  color: var(--color-success);
}

.retired-badge {
  border: var(--line-thin) solid var(--color-error);
  background: var(--color-error-soft);
  color: var(--color-error);
}

.article-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.article-card {
  display: flex;
  min-width: 0;
  padding: 23px;
  flex-direction: column;
  border: var(--line-thin) solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-panel);
  color: var(--color-text);
  transition:
    border-color var(--transition-fast),
    background-color var(--transition-fast);
}

.article-card:hover {
  border-color: var(--color-text-muted);
  background: var(--color-panel-deep);
}

.article-meta {
  display: flex;
  margin-bottom: 13px;
  flex-wrap: wrap;
  align-items: center;
  gap: 9px;
  color: var(--color-text-muted);
  font: 11px/1.5 var(--font-mono);
}

.article-card h3 {
  font-size: 19px;
}

.article-card p {
  color: var(--color-text-muted);
}

.article-link {
  margin-top: auto;
  color: var(--color-accent);
  font-size: 13px;
}

.callout {
  position: relative;
  margin: 24px 0;
  padding: 18px 20px 18px 22px;
  border: var(--line-thin) solid var(--color-border);
  border-left: 2px solid var(--color-accent);
  border-radius: var(--radius-sm);
  background: var(--color-panel);
  color: var(--color-text);
}

.callout strong {
  color: var(--color-accent);
}

.callout p:last-child {
  margin-bottom: 0;
}

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

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

.end-download-card {
  display: flex;
  min-width: 0;
  margin-top: 50px;
  padding: 24px;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  border: var(--line-thin) solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-panel);
  color: var(--color-text);
}

.end-download-card-copy {
  min-width: 0;
}

.end-download-card-copy p {
  margin: 6px 0 0;
  color: var(--color-text-muted);
}

.dl-fab {
  position: fixed;
  z-index: 100;
  right: 26px;
  bottom: 26px;
  display: inline-flex;
  min-height: 44px;
  max-width: calc(100vw - 32px);
  align-items: center;
  gap: 9px;
  padding: 11px 17px;
  border: var(--line-thin) solid var(--color-accent-strong);
  border-radius: var(--radius-md);
  background: var(--color-accent);
  color: var(--color-bg);
  font-size: 14px;
  font-weight: 600;
  transition: background-color var(--transition-fast);
}

.dl-fab:hover {
  background: var(--color-accent-strong);
  color: var(--color-bg);
}

.dl-fab svg {
  width: 16px;
  height: 16px;
  flex-shrink: 0;
}

.hero {
  position: relative;
  padding-top: 44px;
  overflow-x: clip;
}

.hero-copy {
  position: relative;
  z-index: 2;
}

.hero-title-accent {
  color: var(--color-accent);
}

.hero-desc {
  max-width: 720px;
  margin-bottom: 0;
  color: var(--color-text-muted);
  font-size: 15.5px;
}

.hero-chips {
  display: flex;
  margin-top: 19px;
  flex-wrap: wrap;
  gap: 8px;
}

.hero-spark {
  position: absolute;
  z-index: 1;
  width: 16px;
  height: 11px;
  color: var(--color-accent);
  pointer-events: none;
}

.hero-spark path {
  fill: none;
  stroke: currentColor;
  stroke-width: 1.4;
}

.hero-spark circle {
  fill: currentColor;
}

.spark-a {
  top: 34px;
  left: 71%;
}

.spark-b {
  top: 150px;
  left: 88%;
}

.spark-c {
  top: 96px;
  left: 56%;
}

.spark-d {
  top: 210px;
  left: 3%;
}

.hero-stage {
  position: relative;
  z-index: 2;
  margin-top: 26px;
  padding: 24px;
  border: var(--line-thin) solid var(--color-border);
  border-radius: var(--radius-lg);
  background: linear-gradient(180deg, var(--color-panel), var(--color-bg));
  color: var(--color-text);
}

.control-window {
  overflow: hidden;
  border: var(--line-thin) solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-panel-deep);
  color: var(--color-text);
}

.control-bar {
  display: flex;
  height: 44px;
  padding-inline: 16px;
  align-items: stretch;
  gap: 18px;
  border-bottom: var(--line-thin) solid var(--color-border);
}

.control-mark {
  display: flex;
  align-items: center;
  color: var(--color-accent);
}

.control-mark svg {
  width: 15px;
  height: 15px;
}

.control-tabs {
  display: flex;
  align-items: stretch;
  gap: 2px;
}

.control-tab {
  display: flex;
  padding-inline: 12px;
  align-items: center;
  border-bottom: 2px solid transparent;
  color: var(--color-text-muted);
  font: 12px/1.4 var(--font-mono);
}

.control-tab.is-current {
  border-bottom-color: var(--color-accent);
  color: var(--color-text);
}

.control-status {
  display: flex;
  margin-left: auto;
  align-items: center;
  gap: 14px;
  color: var(--color-text-muted);
  font: 11.5px/1.4 var(--font-mono);
}

.control-body {
  display: grid;
  grid-template-columns: 232px minmax(0, 1fr);
  min-height: 322px;
}

.control-side {
  display: flex;
  padding: 12px 10px;
  flex-direction: column;
  gap: 1px;
  border-right: var(--line-thin) solid var(--color-border);
}

.control-group {
  padding: 9px 10px 5px;
  color: var(--color-text-muted);
  font: 10.5px/1.4 var(--font-mono);
  letter-spacing: 0.09em;
}

.control-node {
  position: relative;
  display: flex;
  padding: 7px 11px;
  align-items: center;
  gap: 9px;
  border-radius: var(--radius-sm);
  color: var(--color-text-muted);
  font: 12px/1.4 var(--font-mono);
}

.control-node.is-current {
  background: var(--color-panel);
  color: var(--color-text);
}

.control-node.is-current::before {
  position: absolute;
  top: 8px;
  bottom: 8px;
  left: 0;
  width: 2px;
  border-radius: var(--radius-xs);
  background: var(--color-accent);
  content: "";
}

.control-main {
  display: flex;
  min-width: 0;
  padding: 16px 20px 10px;
  flex-direction: column;
  gap: 12px;
}

.control-main-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.control-main-title {
  color: var(--color-text);
  font-size: 13.5px;
  font-weight: 500;
}

.config-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.config-chip {
  padding: 3px 10px;
  border: var(--line-thin) solid var(--color-border);
  border-radius: 999px;
  color: var(--color-text-muted);
  font: 10.5px/1.5 var(--font-mono);
}

.config-chip b {
  color: var(--color-accent);
  font-weight: 400;
}

.link-chart {
  width: 100%;
  height: auto;
}

.link-chart .node-box {
  fill: var(--color-panel);
  stroke: var(--color-accent);
}

.link-chart .node-icon {
  fill: none;
  stroke: var(--color-text-muted);
  stroke-width: 1.2;
}

.link-chart .node-dot,
.link-chart .link-dot,
.link-chart .link-arrow {
  fill: var(--color-accent);
}

.link-chart .node-name {
  fill: var(--color-text);
  font: 13px var(--font-body);
}

.link-chart .node-port {
  fill: var(--color-accent);
  font: 11px var(--font-mono);
}

.link-chart .node-sub {
  fill: var(--color-text-muted);
  font: 10px var(--font-mono);
  letter-spacing: 0.08em;
}

.link-chart .link-line {
  fill: none;
  stroke: var(--color-accent);
  stroke-width: 1.3;
}

.control-foot {
  display: flex;
  height: 44px;
  padding-inline: 16px;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  border-top: var(--line-thin) solid var(--color-border);
  color: var(--color-text-muted);
  font: 11.5px/1.4 var(--font-mono);
}

.control-foot-left {
  display: flex;
  align-items: center;
  gap: 22px;
}

.toggle-item {
  display: flex;
  align-items: center;
  gap: 8px;
}

.mini-toggle {
  position: relative;
  width: 26px;
  height: 14px;
  flex-shrink: 0;
  border: var(--line-thin) solid var(--color-border);
  border-radius: 999px;
  background: var(--color-panel);
}

.mini-toggle::after {
  position: absolute;
  top: 2px;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  content: "";
}

.mini-toggle.is-off::after {
  left: 2px;
  background: var(--color-text-muted);
}

.mini-toggle.is-on {
  border-color: var(--color-accent-strong);
  background: var(--color-accent);
}

.mini-toggle.is-on::after {
  right: 2px;
  background: var(--color-panel-deep);
}

.hero-actions {
  position: relative;
  z-index: 2;
  display: flex;
  margin-top: 20px;
  padding-bottom: 30px;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 24px;
}

.cta-group,
.platform-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
}

.platform-link {
  display: inline-flex;
  min-height: 40px;
  align-items: center;
  gap: 8px;
  padding: 8px 13px;
  border: var(--line-thin) solid var(--color-border);
  border-radius: var(--radius-sm);
  color: var(--color-text-muted);
  font: 12px/1.4 var(--font-mono);
}

.platform-link:hover {
  border-color: var(--color-text-muted);
  color: var(--color-text);
}

.platform-link svg {
  width: 15px;
  height: 15px;
  flex-shrink: 0;
}

.preview-section {
  padding-top: 82px;
  padding-bottom: 82px;
  border-top: var(--line-thin) solid var(--color-border);
}

.token-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
}

.token-card {
  overflow: hidden;
  border: var(--line-thin) solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-panel);
  color: var(--color-text);
}

.token-swatch {
  height: 70px;
  border-bottom: var(--line-thin) solid var(--color-border);
}

.swatch-bg {
  background: var(--color-bg);
}

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

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

.swatch-border {
  background: var(--color-border);
}

.swatch-accent {
  background: var(--color-accent);
}

.swatch-accent-strong {
  background: var(--color-accent-strong);
}

.swatch-text {
  background: var(--color-text);
}

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

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

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

.swatch-error {
  background: var(--color-error);
}

.token-label {
  padding: 11px;
  color: var(--color-text-muted);
  font: 11px/1.4 var(--font-mono);
}

.preview-footer {
  padding-top: 45px;
  padding-bottom: 28px;
}

@media (max-width: 900px) {
  .tab-system {
    grid-template-columns: minmax(0, 1fr);
  }

  .tab-list {
    overflow-x: auto;
    flex-direction: row;
    border-right: 0;
    border-bottom: var(--line-thin) solid var(--color-border);
  }

  .tab-list [role="tab"] {
    width: auto;
    flex: 0 0 auto;
  }

  .download-grid,
  .article-grid {
    grid-template-columns: minmax(0, 1fr);
  }

  .control-body {
    grid-template-columns: 190px minmax(0, 1fr);
  }

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

@media (max-width: 700px) {
  .control-side {
    display: none;
  }

  .control-body {
    grid-template-columns: minmax(0, 1fr);
  }

  .control-tabs .control-tab:nth-child(n+3),
  .control-status .status-extra {
    display: none;
  }

  .hero-stage {
    padding: 12px;
  }

  .control-main {
    padding-inline: 12px;
  }

  .control-foot {
    height: auto;
    min-height: 44px;
    padding-top: 10px;
    padding-bottom: 10px;
    align-items: flex-start;
    flex-direction: column;
  }

  .control-foot-left {
    flex-wrap: wrap;
    gap: 10px 18px;
  }

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

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

@media (max-width: 640px) {
  .tab-panel {
    padding: 20px;
  }

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

  .hero {
    padding-top: 34px;
  }

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

  .cta-group {
    align-items: stretch;
  }

  .cta-group .btn,
  .cta-group .button {
    flex: 1 1 auto;
  }

  .platform-row {
    justify-content: flex-start;
  }

  .platform-link {
    flex: 1 1 calc(50% - 8px);
    justify-content: center;
  }

  .config-chips {
    display: none;
  }

  .control-main-head {
    min-height: 28px;
  }

  .link-chart {
    min-width: 540px;
  }

  .control-main {
    overflow-x: auto;
  }

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