:root {
  --table-min-width: 760px;
  --compare-min-width: 820px;
  --platform-icon-size: 46px;
  --rule-row-height: 49px;
}

.tab-shell {
  overflow: hidden;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  background: var(--color-panel);
  box-shadow: var(--shadow-card);
}

.tab-list,
[role="tablist"] {
  display: flex;
  gap: 6px;
  max-width: 100%;
  padding: 8px;
  overflow-x: auto;
  border-bottom: 1px solid var(--color-border-soft);
  background: var(--color-panel-raised);
  scrollbar-width: thin;
  -webkit-overflow-scrolling: touch;
}

.tab-list [role="tab"],
[role="tablist"] [role="tab"] {
  flex: 0 0 auto;
  min-height: 42px;
  padding: 8px 15px;
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  color: var(--color-text-muted);
  background: transparent;
  font-weight: 700;
  white-space: nowrap;
}

.tab-list [role="tab"]:hover,
[role="tablist"] [role="tab"]:hover {
  color: var(--color-text);
  background: var(--color-panel);
}

.tab-list [role="tab"][aria-selected="true"],
[role="tablist"] [role="tab"][aria-selected="true"] {
  border-color: var(--color-accent-bright);
  color: var(--color-text);
  background: var(--color-accent-dark);
  box-shadow: 0 8px 20px var(--color-glow-blue);
}

[role="tabpanel"] {
  padding: 28px;
}

[role="tabpanel"][hidden] {
  display: none;
}

.toc-tabs {
  position: sticky;
  top: 10px;
  z-index: 30;
  display: flex;
  gap: 6px;
  max-width: 100%;
  margin-bottom: 36px;
  padding: 7px;
  overflow-x: auto;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-panel);
  box-shadow: var(--shadow-card);
  scrollbar-width: thin;
  -webkit-overflow-scrolling: touch;
}

.toc-tabs a {
  flex: 0 0 auto;
  min-height: 40px;
  padding: 8px 13px;
  border-radius: var(--radius-xs);
  color: var(--color-text-muted);
  font-size: 13px;
  font-weight: 700;
  white-space: nowrap;
}

.toc-tabs a:hover,
.toc-tabs a.is-current,
.toc-tabs a[aria-current="location"] {
  color: var(--color-text);
  background: var(--color-accent-dark);
}

.toc-sticky-host {
  position: sticky;
  z-index: 29;
}

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

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

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

.faq-item summary {
  position: relative;
  display: flex;
  align-items: center;
  min-height: 64px;
  padding: 16px 52px 16px 20px;
  color: var(--color-text);
  font-weight: 750;
  list-style: none;
}

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

.faq-item summary::after {
  position: absolute;
  right: 20px;
  flex: 0 0 auto;
  color: var(--color-success);
  content: "+";
  font-family: var(--font-mono);
  font-size: 22px;
  line-height: 1;
  transition: transform var(--transition-fast);
}

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

.faq-item[open] summary {
  border-bottom: 1px solid var(--color-border-soft);
  background: var(--color-panel-raised);
}

.faq-item:not([open]) .faq-answer {
  display: none;
}

.faq-answer {
  position: static;
  display: block;
  padding: 18px 20px 20px;
}

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

.plan-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
  align-items: stretch;
}

.plan-card {
  position: relative;
  display: flex;
  min-width: 0;
  padding: 28px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-panel);
  box-shadow: var(--shadow-card);
  flex-direction: column;
}

.plan-card.is-featured,
.plan-card[aria-current="true"] {
  border-color: var(--color-accent-bright);
  background:
    linear-gradient(180deg, var(--color-panel-raised), var(--color-panel));
  box-shadow:
    0 0 0 1px var(--color-accent),
    0 24px 58px var(--color-shadow),
    0 0 36px var(--color-glow-blue);
}

.plan-badge {
  position: absolute;
  top: -13px;
  right: 18px;
  display: inline-flex;
  align-items: center;
  min-height: 27px;
  padding: 4px 10px;
  border: 1px solid var(--color-success);
  border-radius: var(--radius-pill);
  color: var(--color-panel);
  background: var(--color-success);
  font-size: 11px;
  font-weight: 850;
}

.plan-name {
  margin-bottom: 8px;
  color: var(--color-text-muted);
  font-size: 14px;
  font-weight: 750;
}

.plan-price {
  display: flex;
  align-items: baseline;
  gap: 5px;
  margin-bottom: 4px;
  color: var(--color-text);
}

.plan-price strong {
  font-family: var(--font-display);
  font-size: 42px;
  font-weight: 900;
  line-height: 1;
  letter-spacing: -0.02em;
}

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

.plan-period {
  min-height: 26px;
  color: var(--color-text-faint);
  font-family: var(--font-mono);
  font-size: 11px;
}

.plan-features {
  display: grid;
  gap: 10px;
  margin: 24px 0;
  padding: 20px 0 0;
  border-top: 1px solid var(--color-border-soft);
  list-style: none;
}

.plan-features li {
  position: relative;
  padding-left: 21px;
  color: var(--color-text-muted);
  font-size: 14px;
}

.plan-features li::before {
  position: absolute;
  top: 0.65em;
  left: 0;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  content: "";
  background: var(--color-success);
  box-shadow: 0 0 10px var(--color-success);
}

.plan-card .button {
  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);
  box-shadow: var(--shadow-card);
  -webkit-overflow-scrolling: touch;
}

.data-table,
.server-table,
.comparison-table {
  width: 100%;
  min-width: var(--table-min-width);
  border-collapse: collapse;
  color: var(--color-text-muted);
  background: var(--color-panel);
}

.comparison-table {
  min-width: var(--compare-min-width);
}

.data-table th,
.data-table td,
.server-table th,
.server-table td,
.comparison-table th,
.comparison-table td {
  padding: 15px 18px;
  border-bottom: 1px solid var(--color-border-soft);
  text-align: left;
  vertical-align: middle;
}

.data-table th,
.server-table th,
.comparison-table th {
  color: var(--color-text);
  background: var(--color-panel-raised);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.03em;
}

.data-table td:first-child,
.server-table td:first-child,
.comparison-table td:first-child {
  color: var(--color-text);
  font-weight: 700;
}

.data-table tbody tr:hover,
.server-table tbody tr:hover,
.comparison-table tbody tr:hover {
  background: var(--color-panel-subtle);
}

.server-group-row th {
  color: var(--color-success);
  background: var(--color-accent-dark);
  font-family: var(--font-mono);
}

.server-country {
  display: inline-flex;
  align-items: center;
  gap: 9px;
}

.server-country svg {
  flex: 0 0 auto;
  width: 25px;
  height: 17px;
  border-radius: var(--radius-xs);
}

.route-label {
  display: inline-flex;
  max-width: 100%;
  padding: 4px 8px;
  overflow: hidden;
  border: 1px solid var(--color-success);
  border-radius: var(--radius-xs);
  color: var(--color-success);
  background: var(--color-success-soft);
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 750;
  text-overflow: ellipsis;
  white-space: nowrap;
}

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

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

.platform-card {
  display: flex;
  min-width: 0;
  min-height: 210px;
  padding: 22px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-panel);
  box-shadow: var(--shadow-card);
  flex-direction: column;
}

.platform-icon {
  display: grid;
  flex: 0 0 auto;
  width: var(--platform-icon-size);
  height: var(--platform-icon-size);
  margin-bottom: 22px;
  place-items: center;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  color: var(--color-text);
  background: var(--color-panel-raised);
}

.platform-icon svg {
  width: 25px;
  height: 25px;
}

.platform-card h3 {
  font-size: 18px;
}

.platform-card p {
  font-size: 13px;
}

.platform-card .button {
  width: 100%;
  min-width: 0;
  min-height: 42px;
  margin-top: auto;
  padding-inline: 10px;
  font-size: 13px;
}

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

.article-card {
  display: flex;
  min-width: 0;
  min-height: 280px;
  overflow: clip;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-panel);
  box-shadow: var(--shadow-card);
  flex-direction: column;
}

.article-card-top {
  min-height: 9px;
  background: linear-gradient(90deg, var(--color-accent), var(--color-success));
}

.article-card-body {
  display: flex;
  height: 100%;
  padding: 24px;
  flex-direction: column;
}

.article-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 12px;
  margin-bottom: 16px;
  color: var(--color-text-faint);
  font-family: var(--font-mono);
  font-size: 10px;
}

.article-card h3 {
  font-size: 21px;
}

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

.article-card-link {
  margin-top: auto;
  color: var(--color-success);
  font-size: 13px;
  font-weight: 750;
}

.callout {
  position: relative;
  margin: 28px 0;
  padding: 20px 22px 20px 26px;
  border: 1px solid var(--color-border);
  border-left: 4px solid var(--color-success);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  background: var(--color-panel-raised);
}

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

.callout-title {
  display: block;
  margin-bottom: 7px;
  color: var(--color-text);
  font-weight: 800;
}

.promo-block {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 26px;
  align-items: center;
  margin-top: 56px;
  padding: 30px;
  overflow-x: clip;
  border: 1px solid var(--color-accent-bright);
  border-radius: var(--radius-lg);
  background:
    linear-gradient(120deg, var(--color-panel-raised), var(--color-panel));
  box-shadow:
    var(--shadow-card),
    inset 0 1px 0 var(--color-border-soft);
}

.promo-block::after {
  position: absolute;
  top: -70px;
  right: -40px;
  width: 190px;
  height: 190px;
  border: 1px dashed var(--color-success);
  border-radius: 50%;
  content: "";
  opacity: 0.3;
}

.promo-copy {
  position: relative;
  z-index: 1;
}

.promo-brand {
  display: block;
  margin-bottom: 6px;
  color: var(--color-success);
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.08em;
}

.promo-block h2,
.promo-block h3 {
  margin-bottom: 8px;
  font-size: clamp(24px, 3vw, 34px);
}

.promo-block p {
  margin-bottom: 0;
}

.promo-block .button {
  position: relative;
  z-index: 1;
}

.rule-visual {
  position: relative;
  z-index: 1;
  min-width: 0;
}

.visual-orbit {
  position: absolute;
  top: 42%;
  left: 44%;
  z-index: -1;
  width: 490px;
  height: 490px;
  border: 1px dashed var(--color-border);
  border-radius: 50%;
  opacity: 0.38;
  transform: translate(-50%, -50%);
  animation: orbit-turn 28s linear infinite;
}

.visual-orbit::before,
.visual-orbit::after {
  position: absolute;
  border-radius: 50%;
  content: "";
}

.visual-orbit::before {
  top: 47px;
  right: 48px;
  width: 10px;
  height: 10px;
  background: var(--color-success);
  box-shadow: 0 0 22px var(--color-success);
}

.visual-orbit::after {
  bottom: 68px;
  left: 30px;
  width: 8px;
  height: 8px;
  background: var(--color-accent-bright);
  box-shadow: 0 0 20px var(--color-accent);
}

.rule-window {
  position: relative;
  width: 100%;
  max-width: 720px;
  overflow: hidden;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  background: var(--color-panel);
  box-shadow: var(--shadow-window);
}

.rule-window::before {
  position: absolute;
  inset: 0;
  z-index: 3;
  border-radius: inherit;
  pointer-events: none;
  content: "";
  box-shadow: inset 0 1px 0 var(--color-border-soft);
}

.window-chrome {
  display: flex;
  align-items: center;
  height: 52px;
  padding: 0 18px;
  border-bottom: 1px solid var(--color-border-soft);
  background: linear-gradient(90deg, var(--color-panel), var(--color-panel-raised));
}

.window-dots {
  display: flex;
  flex: 0 0 auto;
  gap: 7px;
  margin-right: 15px;
}

.window-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--color-border);
}

.window-dot:nth-child(1) {
  background: var(--color-error);
}

.window-dot:nth-child(2) {
  background: var(--color-warn);
}

.window-dot:nth-child(3) {
  background: var(--color-success);
}

.window-title {
  color: var(--color-text);
  font-size: 13px;
  font-weight: 750;
}

.window-path {
  margin-left: 12px;
  padding-left: 12px;
  border-left: 1px solid var(--color-border-soft);
  color: var(--color-text-faint);
  font-family: var(--font-mono);
  font-size: 10px;
}

.window-state {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  margin-left: auto;
  color: var(--color-success);
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 750;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.window-state::before {
  flex: 0 0 auto;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  content: "";
  background: var(--color-success);
  box-shadow: 0 0 11px var(--color-success);
}

.rule-table-head,
.rule-row {
  display: grid;
  grid-template-columns: 1.22fr 1.18fr 0.9fr 0.62fr;
  align-items: center;
  column-gap: 12px;
}

.rule-table-head {
  min-height: 37px;
  padding: 0 18px;
  border-bottom: 1px solid var(--color-border-soft);
  color: var(--color-text-faint);
  font-size: 10px;
  font-weight: 750;
  letter-spacing: 0.08em;
}

.rule-list {
  padding: 5px 8px;
}

.rule-row {
  min-height: var(--rule-row-height);
  padding: 0 10px;
  border-bottom: 1px solid var(--color-border-soft);
}

.rule-row:last-child {
  border-bottom: 0;
}

.rule-row.is-selected {
  margin: 2px 0;
  border: 1px solid var(--color-accent);
  border-radius: var(--radius-sm);
  background: linear-gradient(90deg, var(--color-panel-selected), var(--color-panel-raised));
  box-shadow:
    inset 3px 0 0 var(--color-success),
    0 8px 22px var(--color-shadow-soft);
}

.rule-device,
.rule-destination {
  display: flex;
  align-items: center;
  min-width: 0;
  gap: 9px;
  color: var(--color-text);
  font-size: 12px;
  font-weight: 700;
}

.rule-device-icon {
  display: grid;
  flex: 0 0 auto;
  width: 25px;
  height: 25px;
  place-items: center;
  border: 1px solid var(--color-border-soft);
  border-radius: var(--radius-xs);
  color: var(--color-text-muted);
  background: var(--color-panel-raised);
}

.rule-device-icon svg {
  width: 15px;
  height: 15px;
}

.flag {
  position: relative;
  flex: 0 0 auto;
  width: 28px;
  height: 19px;
  overflow: hidden;
  border: 1px solid var(--color-border-soft);
  border-radius: var(--radius-xs);
  background: var(--color-flag-white);
}

.flag svg {
  width: 100%;
  height: 100%;
}

.route-type {
  justify-self: start;
  padding: 5px 8px;
  border: 1px solid var(--color-success);
  border-radius: var(--radius-xs);
  color: var(--color-success);
  background: var(--color-success-soft);
  font-family: var(--font-mono);
  font-size: 9px;
  font-weight: 750;
}

.rule-switch {
  position: relative;
  justify-self: end;
  width: 32px;
  height: 18px;
  border: 1px solid var(--color-accent-bright);
  border-radius: var(--radius-pill);
  background: var(--color-accent);
  box-shadow: 0 0 13px var(--color-glow-blue);
}

.rule-switch::after {
  position: absolute;
  top: 3px;
  right: 3px;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  content: "";
  background: var(--color-white);
}

.rule-footer {
  display: flex;
  align-items: center;
  gap: 11px;
  min-height: 47px;
  padding: 0 18px;
  border-top: 1px solid var(--color-border-soft);
  color: var(--color-text-muted);
  background: var(--color-panel-subtle);
  font-size: 11px;
}

.rule-footer svg {
  flex: 0 0 auto;
  width: 17px;
  height: 17px;
  color: var(--color-success);
}

.device-furniture {
  display: grid;
  gap: 8px;
  margin-top: 14px;
}

.furniture-line {
  display: flex;
  align-items: center;
  min-height: 38px;
  padding: 0 12px;
  border: 1px solid var(--color-border-soft);
  border-radius: var(--radius-sm);
  background: var(--color-panel-translucent);
  box-shadow: 0 8px 18px var(--color-shadow-soft);
}

.furniture-label {
  flex: 0 0 76px;
  color: var(--color-text-faint);
  font-family: var(--font-mono);
  font-size: 9px;
  font-weight: 750;
  letter-spacing: 0.08em;
}

.platform-list,
.route-list {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  min-width: 0;
  gap: 8px;
}

.platform-item,
.route-item {
  display: inline-flex;
  align-items: center;
  min-width: 0;
  gap: 5px;
  color: var(--color-text-muted);
  font-size: 10px;
  font-weight: 700;
  white-space: nowrap;
}

.platform-item svg {
  flex: 0 0 auto;
  width: 14px;
  height: 14px;
  color: var(--color-text);
}

.route-item .flag {
  width: 21px;
  height: 14px;
}

.palette-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-sm);
  background: var(--color-panel);
}

.swatch-color {
  height: 88px;
}

.swatch-info {
  padding: 12px;
}

.swatch-info strong,
.swatch-info code {
  display: block;
}

.swatch-info code {
  margin-top: 4px;
  color: var(--color-text-faint);
  font-size: 10px;
}

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

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

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

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

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

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

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

.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);
}

.flag-us .stripe-red {
  fill: var(--color-flag-red-deep);
}

.flag-us .stripe-white,
.flag-jp .field,
.flag-hk .flower,
.flag-sg .lower,
.flag-kr .field {
  fill: var(--color-flag-white);
}

.flag-us .canton,
.flag-kr .blue {
  fill: var(--color-flag-blue);
}

.flag-us .stars {
  fill: var(--color-flag-white);
}

.flag-jp .sun,
.flag-hk .field,
.flag-sg .upper,
.flag-kr .red {
  fill: var(--color-flag-red);
}

.flag-sg .moon,
.flag-sg .star {
  fill: var(--color-flag-white);
}

.flag-kr .bar {
  fill: var(--color-flag-black);
}

@keyframes orbit-turn {
  from {
    transform: translate(-50%, -50%) rotate(0deg);
  }

  to {
    transform: translate(-50%, -50%) rotate(360deg);
  }
}

@media (max-width: 1080px) {
  .platform-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

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

@media (max-width: 900px) {
  .plan-grid,
  .article-grid {
    grid-template-columns: 1fr;
  }

  .plan-card {
    max-width: 620px;
    width: 100%;
    margin-inline: auto;
  }

  .rule-visual {
    max-width: 720px;
    margin-inline: auto;
  }
}

@media (max-width: 768px) {
  .platform-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

  .promo-block {
    grid-template-columns: 1fr;
  }

  .promo-block .button {
    justify-self: start;
  }

  .visual-orbit {
    width: 390px;
    height: 390px;
  }
}

@media (max-width: 640px) {
  [role="tabpanel"] {
    padding: 20px;
  }

  .toc-tabs {
    top: 6px;
    border-radius: var(--radius-xs);
  }

  .plan-card {
    padding: 23px 20px;
  }

  .platform-grid {
    grid-template-columns: 1fr;
  }

  .platform-card {
    min-height: 190px;
  }

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

  .rule-window {
    border-radius: var(--radius-md);
  }

  .window-chrome {
    height: 48px;
    padding-inline: 12px;
  }

  .window-path {
    display: none;
  }

  .rule-table-head {
    display: none;
  }

  .rule-list {
    padding: 5px;
  }

  .rule-row {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 1fr) auto;
    gap: 8px;
    min-height: 58px;
    padding-inline: 8px;
  }

  .rule-row .route-type {
    display: none;
  }

  .rule-device,
  .rule-destination {
    gap: 6px;
    font-size: 11px;
  }

  .rule-device-icon {
    width: 23px;
    height: 23px;
  }

  .rule-footer {
    align-items: flex-start;
    padding-top: 12px;
    padding-bottom: 12px;
  }

  .furniture-line {
    align-items: flex-start;
    padding-top: 10px;
    padding-bottom: 10px;
    flex-direction: column;
  }

  .furniture-label {
    flex-basis: auto;
    margin-bottom: 8px;
  }

  .platform-list,
  .route-list {
    flex-wrap: wrap;
    justify-content: flex-start;
  }

  .visual-orbit {
    display: none;
  }

  .promo-block {
    padding: 24px 20px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .visual-orbit {
    animation: none;
  }
}