.tab-shell {
  width: 100%;
}

.tab-list {
  display: inline-flex;
  max-width: 100%;
  gap: 4px;
  overflow-x: auto;
  padding: 4px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-panel);
  scrollbar-width: none;
  -webkit-overflow-scrolling: touch;
}

.tab-list::-webkit-scrollbar,
.toc-tabs::-webkit-scrollbar {
  display: none;
}

.tab-list [role='tab'] {
  min-height: 40px;
  flex: 0 0 auto;
  padding: 8px 17px;
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  background: transparent;
  color: var(--color-text-muted);
  cursor: pointer;
  font-family: var(--font-mono);
  font-size: 12px;
}

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

.tab-list [role='tab'][aria-selected='true'],
.tab-list [role='tab'].is-active {
  border-color: var(--color-border);
  background: var(--color-panel-raised);
  color: var(--color-text);
}

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

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

.toc-tabs {
  position: sticky;
  top: 12px;
  z-index: 70;
  display: flex;
  width: 100%;
  max-width: 100%;
  gap: 6px;
  overflow-x: auto;
  padding: 7px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-panel);
  box-shadow: var(--edge-highlight);
  scrollbar-width: none;
  -webkit-overflow-scrolling: touch;
}

.toc-tabs a {
  display: inline-flex;
  min-height: 38px;
  flex: 0 0 auto;
  align-items: center;
  padding: 7px 13px;
  border-radius: var(--radius-sm);
  color: var(--color-text-muted);
  font-size: 13px;
  white-space: nowrap;
}

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

.toc-tabs-hosted {
  position: static;
}

.toc-sticky-host {
  position: sticky;
  top: var(--toc-host-top, var(--toc-offset));
  z-index: 70;
}

body:has(.toc-tabs) section[id] {
  scroll-margin-top: calc(var(--toc-offset) + 32px);
}

.faq-list {
  border-top: 1px solid var(--color-border);
}

.faq-item {
  border-bottom: 1px solid var(--color-border);
}

.faq-item summary {
  position: relative;
  display: flex;
  min-height: 64px;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 18px 44px 18px 0;
  color: var(--color-text);
  cursor: pointer;
  font-size: 16px;
  font-weight: 500;
  list-style: none;
}

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

.faq-item summary::after {
  position: absolute;
  right: 8px;
  width: 18px;
  height: 18px;
  color: var(--color-text-muted);
  content: '+';
  font-family: var(--font-mono);
  font-size: 18px;
  font-weight: 400;
  line-height: 18px;
  text-align: center;
  transition: transform var(--transition-fast), color var(--transition-fast);
}

.faq-item[open] summary::after {
  color: var(--color-accent);
  transform: rotate(45deg);
}

.faq-answer {
  max-width: 830px;
  padding: 0 44px 22px 0;
}

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

.pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.plan-card {
  position: relative;
  display: flex;
  min-height: 100%;
  flex-direction: column;
  padding: 28px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-panel);
  box-shadow: var(--edge-highlight);
}

.plan-card.is-current,
.plan-card.plan-featured {
  border-color: var(--color-accent-deep);
  background: var(--color-panel-raised);
}

.plan-card.plan-featured::before {
  position: absolute;
  top: -12px;
  right: 18px;
  padding: 4px 9px;
  border: 1px solid var(--color-accent-deep);
  border-radius: var(--radius-round);
  background: var(--color-bg);
  color: var(--color-accent);
  content: '最划算';
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.06em;
}

.plan-code {
  margin-bottom: 18px;
  color: var(--color-text-muted);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
}

.plan-name {
  margin-bottom: 10px;
  color: var(--color-text);
  font-family: var(--font-display);
  font-size: 29px;
  font-weight: 400;
}

.plan-price {
  display: flex;
  align-items: baseline;
  gap: 6px;
  margin-bottom: 5px;
  color: var(--color-text);
}

.plan-price strong {
  font-family: var(--font-mono);
  font-size: 32px;
  font-weight: 500;
}

.plan-price span,
.plan-cycle {
  color: var(--color-text-muted);
  font-size: 13px;
}

.plan-features {
  margin: 24px 0 28px;
  list-style: none;
}

.plan-features li {
  position: relative;
  padding-left: 16px;
  color: var(--color-text-muted);
  font-size: 14px;
}

.plan-features li + li {
  margin-top: 10px;
}

.plan-features li::before {
  position: absolute;
  top: 0.72em;
  left: 0;
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--color-accent);
  content: '';
}

.plan-card .btn-primary,
.plan-card .btn-secondary {
  width: 100%;
  margin-top: auto;
}

.table-scroll {
  width: 100%;
  max-width: 100%;
  overflow-x: auto;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-panel);
  -webkit-overflow-scrolling: touch;
}

.data-table,
.route-table,
.compare-table {
  width: 100%;
  min-width: 700px;
  color: var(--color-text-muted);
  font-size: 14px;
}

.data-table th,
.data-table td,
.route-table th,
.route-table td,
.compare-table th,
.compare-table td {
  padding: 14px 17px;
  border-bottom: 1px solid var(--color-border);
  text-align: left;
  vertical-align: middle;
}

.data-table th,
.route-table th,
.compare-table th {
  background: var(--color-panel-raised);
  color: var(--color-text);
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.05em;
}

.data-table tr:last-child td,
.route-table tr:last-child td,
.compare-table tr:last-child td {
  border-bottom: 0;
}

.data-table th:first-child,
.data-table td:first-child,
.route-table th:first-child,
.route-table td:first-child,
.compare-table th:first-child,
.compare-table td:first-child {
  color: var(--color-text);
}

.route-region-row th {
  background: var(--color-bg);
  color: var(--color-accent);
  font-size: 11px;
  letter-spacing: 0.08em;
}

.route-type {
  display: inline-flex;
  max-width: 100%;
  padding: 3px 8px;
  overflow: hidden;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xs);
  color: var(--color-text);
  font-family: var(--font-mono);
  font-size: 10px;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.support-yes {
  color: var(--color-success);
}

.support-limited {
  color: var(--color-warn);
}

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

.platform-grid {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 12px;
}

.platform-card {
  display: flex;
  min-height: 190px;
  flex-direction: column;
  align-items: flex-start;
  padding: 22px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-panel);
  transition: border-color var(--transition-fast), background-color var(--transition-fast), transform var(--transition-fast);
}

.platform-card:hover {
  border-color: var(--color-text-muted);
  background: var(--color-panel-raised);
  transform: translateY(-2px);
}

.platform-icon {
  width: 28px;
  height: 28px;
  flex-shrink: 0;
  margin-bottom: 25px;
  color: var(--color-text-muted);
  transition: color var(--transition-fast);
}

.platform-card:hover .platform-icon {
  color: var(--color-accent);
}

.platform-name {
  margin-bottom: 5px;
  color: var(--color-text);
  font-size: 16px;
  font-weight: 600;
}

.platform-note {
  margin-bottom: 20px;
  color: var(--color-text-muted);
  font-size: 12px;
}

.platform-card .btn-ghost {
  width: 100%;
  margin-top: auto;
  padding-inline: 12px;
  font-size: 13px;
}

.article-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.article-card {
  display: flex;
  min-height: 260px;
  flex-direction: column;
  padding: 25px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-panel);
  transition: border-color var(--transition-fast), transform var(--transition-fast);
}

.article-card:hover {
  border-color: var(--color-text-muted);
  transform: translateY(-2px);
}

.article-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 9px 14px;
  margin-bottom: 22px;
  color: var(--color-text-muted);
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.04em;
}

.article-title {
  margin-bottom: 13px;
  color: var(--color-text);
  font-family: var(--font-display);
  font-size: 25px;
  font-weight: 400;
  line-height: 1.32;
}

.article-summary {
  margin-bottom: 24px;
  color: var(--color-text-muted);
  font-size: 13.5px;
}

.article-link {
  margin-top: auto;
  color: var(--color-text);
  font-family: var(--font-mono);
  font-size: 11px;
}

.callout {
  position: relative;
  margin: 30px 0;
  padding: 22px 24px 22px 28px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-panel);
}

.callout::before {
  position: absolute;
  top: 18px;
  bottom: 18px;
  left: 0;
  width: 2px;
  background: var(--color-accent);
  content: '';
}

.callout-title {
  margin-bottom: 7px;
  color: var(--color-text);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.07em;
}

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

.article-promo {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  gap: 28px;
  margin-top: 68px;
  padding: 34px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-panel-raised);
  box-shadow: var(--edge-highlight);
}

.article-promo-brand {
  margin-bottom: 7px;
  color: var(--color-accent);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
}

.article-promo h2 {
  margin-bottom: 10px;
  font-family: var(--font-display);
  font-size: 30px;
  font-weight: 400;
}

.article-promo p {
  max-width: 660px;
  margin-bottom: 0;
}

.float-cta {
  position: fixed;
  right: 28px;
  bottom: calc(28px + env(safe-area-inset-bottom, 0px));
  z-index: 90;
  display: inline-flex;
  min-height: 46px;
  align-items: center;
  gap: 9px;
  padding: 11px 22px;
  border-radius: var(--radius-round);
  background: var(--color-text);
  color: var(--color-bg);
  box-shadow: var(--shadow-float);
  font-size: 14px;
  font-weight: 600;
  transition: opacity var(--transition-fast), transform var(--transition-fast);
}

.float-cta:hover {
  opacity: 0.88;
  transform: translateY(-1px);
}

.float-cta svg {
  width: 17px;
  height: 17px;
  flex-shrink: 0;
}

body:has(.float-cta)::after {
  display: block;
  height: calc(88px + env(safe-area-inset-bottom, 0px));
  content: '';
}

.gear-rows {
  display: grid;
  gap: 14px;
  margin-top: 30px;
  padding-top: 22px;
  border-top: 1px solid var(--color-border);
}

.gear-line {
  display: flex;
  align-items: flex-start;
  gap: 18px;
}

.gear-label {
  width: 66px;
  flex-shrink: 0;
  padding-top: 2px;
  color: var(--color-text-muted);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
}

.platform-list,
.flag-list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 14px 19px;
}

.platform-mark,
.flag-mark {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  color: var(--color-text-muted);
  font-size: 12.5px;
}

.platform-mark {
  transition: color var(--transition-fast);
}

.platform-mark:hover {
  color: var(--color-accent);
}

.platform-mark svg {
  width: 16px;
  height: 16px;
  flex-shrink: 0;
}

.flag-mark svg {
  width: 22px;
  height: 15px;
  flex-shrink: 0;
  overflow: hidden;
  border-radius: 3px;
}

.hero-visual {
  position: relative;
  z-index: 1;
  display: flex;
  justify-content: center;
}

.app-card {
  width: 100%;
  max-width: 600px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  background: var(--color-panel);
  box-shadow: var(--shadow-card), var(--edge-highlight);
}

.app-chrome {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 13px 18px;
  border-bottom: 1px solid var(--color-border);
}

.chrome-dots {
  display: flex;
  flex-shrink: 0;
  gap: 6px;
}

.chrome-dots i {
  width: 9px;
  height: 9px;
  border: 1px solid var(--color-border);
  border-radius: 50%;
  background: var(--color-panel-raised);
}

.chrome-title,
.chrome-state {
  color: var(--color-text-muted);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.05em;
}

.chrome-state {
  display: flex;
  margin-left: auto;
  align-items: center;
  gap: 7px;
  color: var(--color-success);
}

.app-body {
  padding: 22px 22px 18px;
}

.radar-wrap {
  display: flex;
  justify-content: center;
}

.radar {
  position: relative;
  width: min(392px, 100%);
  aspect-ratio: 1;
  overflow: hidden;
  border: 1px solid var(--color-border);
  border-radius: 50%;
  background: radial-gradient(circle at 50% 46%, var(--color-panel-raised), var(--color-panel) 72%);
}

.radar-grid {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

.radar-sweep {
  position: absolute;
  inset: 0;
  border-radius: 50%;
  background: conic-gradient(from 0deg at 50% 50%, var(--color-accent-clear) 0deg, var(--color-accent-clear) 244deg, var(--color-accent-haze) 350deg, var(--color-accent-edge) 357deg, var(--color-accent-clear) 360deg);
  animation: radar-turn 9s linear infinite;
}

@keyframes radar-turn {
  to {
    transform: rotate(360deg);
  }
}

.radar-core {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 6px;
  height: 6px;
  margin: -3px 0 0 -3px;
  border-radius: 50%;
  background: var(--color-text-muted);
}

.radar-node {
  position: absolute;
  z-index: 3;
  display: flex;
  align-items: center;
  gap: 7px;
}

.radar-blip {
  width: 6px;
  height: 6px;
  flex-shrink: 0;
  border-radius: 50%;
  background: var(--color-accent);
  box-shadow: 0 0 9px 2px var(--color-accent-glow);
}

.radar-node span {
  color: var(--color-text-muted);
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.05em;
}

.node-tyo {
  top: 25%;
  left: 64%;
}

.node-hkg {
  top: 45%;
  left: 53%;
}

.node-sin {
  top: 66%;
  left: 43%;
}

.node-lax {
  top: 37%;
  left: 19%;
}

.node-fra {
  top: 58%;
  left: 25%;
}

.app-settings {
  margin-top: 18px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-panel-raised);
}

.app-setting {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 12px 16px;
  border-bottom: 1px solid var(--color-border);
}

.app-setting:last-child {
  border-bottom: 0;
}

.setting-label {
  color: var(--color-text-muted);
  font-size: 11.5px;
}

.setting-value {
  margin-top: 1px;
  color: var(--color-text);
  font-size: 13.5px;
}

.setting-note {
  color: var(--color-text-muted);
  font-family: var(--font-mono);
  font-size: 11px;
}

.switch-on {
  position: relative;
  width: 34px;
  height: 19px;
  flex-shrink: 0;
  border-radius: var(--radius-round);
  background: var(--color-accent-deep);
}

.switch-on::after {
  position: absolute;
  top: 2.5px;
  right: 2.5px;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--color-text);
  content: '';
}

.preview-main {
  overflow-x: clip;
}

.preview-section-head {
  max-width: 760px;
  margin-bottom: 42px;
}

.preview-section-head h2 {
  margin-bottom: 12px;
}

.preview-section-head p {
  margin-bottom: 0;
}

.preview-header-note {
  border-bottom: 1px solid var(--color-border);
  background: var(--color-panel);
}

.preview-header-note .wrap {
  padding-top: 8px;
  padding-bottom: 8px;
  color: var(--color-text-muted);
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.06em;
}

.swatch-grid {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 12px;
}

.swatch {
  overflow: hidden;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-panel);
}

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

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

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

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

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

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

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

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

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

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

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

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

.swatch-meta {
  padding: 13px;
}

.swatch-name {
  display: block;
  color: var(--color-text);
  font-family: var(--font-mono);
  font-size: 10.5px;
  overflow-wrap: anywhere;
}

.type-stack {
  display: grid;
  gap: 22px;
}

.type-sample {
  padding-bottom: 22px;
  border-bottom: 1px solid var(--color-border);
}

.type-sample:last-child {
  border-bottom: 0;
}

.type-label {
  margin-bottom: 8px;
  color: var(--color-text-muted);
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.08em;
}

.type-display {
  color: var(--color-text);
  font-family: var(--font-display);
  font-size: clamp(36px, 5vw, 64px);
  font-weight: 400;
  line-height: 1.12;
}

.type-body {
  max-width: 720px;
  color: var(--color-text-muted);
  font-size: 17px;
}

.type-mono {
  color: var(--color-accent);
  font-family: var(--font-mono);
  font-size: 14px;
}

.preview-button-row,
.preview-badge-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

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

.preview-stack {
  display: grid;
  gap: 20px;
}

.static-footer {
  margin-top: var(--section-space);
}

@media (max-width: 1100px) {
  .platform-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

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

@media (max-width: 820px) {
  .pricing-grid,
  .article-grid {
    grid-template-columns: minmax(0, 1fr);
  }

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

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

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

@media (max-width: 640px) {
  .toc-tabs {
    top: 7px;
  }

  .gear-line {
    flex-direction: column;
    gap: 9px;
  }

  .gear-label {
    width: auto;
  }

  .app-body {
    padding: 14px;
  }

  .radar-node span {
    font-size: 8.5px;
  }

  .node-tyo {
    left: 60%;
  }

  .node-lax {
    left: 13%;
  }

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

  .platform-card {
    min-height: 160px;
  }

  .article-promo {
    padding: 24px;
  }

  .float-cta {
    right: 16px;
    bottom: calc(16px + env(safe-area-inset-bottom, 0px));
  }

  .faq-item summary {
    padding-right: 36px;
  }

  .faq-answer {
    padding-right: 12px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .radar-sweep {
    animation: none;
    transform: rotate(212deg);
  }
}