.hero {
  position: relative;
  overflow-x: clip;
  padding-top: 34px;
  padding-bottom: 0;
}

.hero-inner {
  position: relative;
  display: flex;
  align-items: center;
  flex-direction: column;
  text-align: center;
}

.hero-tag {
  display: inline-flex;
  max-width: 100%;
  align-items: center;
  gap: 8px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-pill);
  background: var(--color-panel);
  padding: 5px 14px;
  color: var(--color-text-muted);
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.06em;
}

.hero-tag .status-dot {
  flex-shrink: 0;
}

.hero-title {
  margin-top: 18px;
  margin-bottom: 0;
  font-size: 60px;
  font-weight: 400;
}

.hero-title .keyword {
  display: inline-block;
}

.hero-title .highlight {
  position: relative;
  z-index: 0;
  display: inline-block;
  white-space: nowrap;
}

.hero-title .highlight::after {
  position: absolute;
  z-index: -1;
  right: 1px;
  bottom: 5px;
  left: 1px;
  height: 7px;
  transform: scaleX(0);
  transform-origin: left center;
  background: var(--color-accent-wash);
  content: "";
  animation: hero-sweep 400ms cubic-bezier(.22, .61, .36, 1) 600ms forwards;
}

.hero-cta {
  margin-top: 26px;
}

.hero-sub {
  max-width: 680px;
  margin: 20px auto 0;
  color: var(--color-text-muted);
  font-size: 16px;
}

.trust-row,
.platform-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
}

.trust-row {
  gap: 12px 26px;
  margin-top: 16px;
}

.trust-item {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  color: var(--color-text-muted);
  font-size: 13.5px;
}

.trust-item svg {
  width: 14px;
  height: 14px;
  flex-shrink: 0;
  color: var(--color-accent);
}

.platform-row {
  gap: 14px 30px;
  margin-top: 24px;
}

.platform-token {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--color-text-muted);
  font-size: 13.5px;
}

.platform-token svg {
  width: 17px;
  height: 17px;
  flex-shrink: 0;
  color: var(--color-text-muted);
}

.hero-rise {
  opacity: 0;
  animation: hero-rise 500ms cubic-bezier(.22, .61, .36, 1) forwards;
}

.hero-rise-1 { animation-delay: 0ms; }
.hero-rise-2 { animation-delay: 100ms; }
.hero-rise-3 { animation-delay: 200ms; }
.hero-rise-4 { animation-delay: 320ms; }
.hero-rise-5 { animation-delay: 420ms; }
.hero-rise-6 { animation-delay: 500ms; }
.hero-rise-7 { animation-delay: 580ms; }
.hero-rise-8 { animation-delay: 660ms; }

@keyframes hero-rise {
  from {
    opacity: 0;
    transform: translateY(16px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes hero-sweep {
  from { transform: scaleX(0); }
  to { transform: scaleX(1); }
}

.tunnel-card {
  width: 100%;
  margin-top: 30px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-panel);
  padding: 18px 22px 14px;
}

.tunnel-svg {
  width: 100%;
  height: auto;
}

.tunnel-svg .flow {
  fill: none;
  stroke: var(--color-flow);
  stroke-width: 1.2;
}

.tunnel-svg .flow-main {
  fill: none;
  stroke: var(--color-accent);
  stroke-width: 2;
}

.tunnel-svg .capsule {
  fill: var(--color-panel-soft);
  stroke: var(--color-text);
  stroke-width: 1.4;
}

.tunnel-svg .capsule-label {
  fill: var(--color-text);
  font-family: var(--font-mono);
  font-size: 26px;
}

.tunnel-svg .plate {
  fill: var(--color-text-muted);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
}

.tunnel-svg .section-line {
  fill: none;
  stroke: var(--color-border);
  stroke-width: 1;
  stroke-dasharray: 4 5;
}

.tunnel-svg .tick {
  fill: none;
  stroke: var(--color-border);
  stroke-width: 1;
}

.tunnel-svg .tag-box {
  fill: var(--color-panel);
  stroke: var(--color-accent);
  stroke-width: 1;
}

.tunnel-svg .tag-text {
  fill: var(--color-accent-strong);
  font-family: var(--font-mono);
  font-size: 11.5px;
}

.tunnel-svg .tag-lead {
  stroke: var(--color-accent);
  stroke-width: 1.4;
}

.tunnel-svg .flow-dot {
  fill: var(--color-accent);
}

.port-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  margin-top: 14px;
  border-top: 1px dashed var(--color-border);
  padding: 14px 20px 6px;
}

.port-item {
  display: inline-flex;
  min-width: 0;
  align-items: center;
  gap: 8px;
}

.port-item .flag {
  width: 26px;
  height: 18px;
  flex-shrink: 0;
  overflow: hidden;
}

.port-item .frame {
  fill: none;
  stroke: var(--color-border);
  stroke-width: 1;
}

.port-name {
  font-size: 13px;
}

.port-code {
  color: var(--color-text-muted);
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.08em;
}

.flag-white { fill: var(--color-flag-white); }
.flag-red { fill: var(--color-flag-red); }
.flag-blue { fill: var(--color-flag-blue); }
.flag-gold { fill: var(--color-flag-gold); }
.flag-black { fill: var(--color-flag-black); }

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

.tab-list {
  display: flex;
  gap: 4px;
  overflow-x: auto;
  border-bottom: 1px solid var(--color-border);
  background: var(--color-panel-soft);
  padding: 8px;
  -webkit-overflow-scrolling: touch;
}

.tab-list [role="tab"] {
  min-height: 42px;
  flex: 0 0 auto;
  border: 1px solid transparent;
  border-radius: var(--radius-xs);
  background: transparent;
  padding: 9px 16px;
}

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

.tab-panel {
  padding: 28px;
}

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

.toc-tabs {
  position: sticky;
  z-index: 30;
  top: 0;
  display: flex;
  max-width: 100%;
  overflow-x: auto;
  border-block: 1px solid var(--color-border);
  background: var(--color-panel);
  padding: 7px;
  scrollbar-width: thin;
  -webkit-overflow-scrolling: touch;
}

.toc-tabs a {
  min-height: 42px;
  flex: 0 0 auto;
  border-left: 2px solid transparent;
  padding: 9px 15px;
  color: var(--color-text-muted);
  font-size: 14px;
  white-space: nowrap;
}

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

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

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

.faq-item summary {
  position: relative;
  min-height: 60px;
  padding: 18px 42px 18px 0;
  font-weight: 600;
  list-style: none;
}

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

.faq-item summary::after {
  position: absolute;
  top: 18px;
  right: 4px;
  color: var(--color-accent-strong);
  content: "+";
  font-family: var(--font-mono);
  font-size: 20px;
}

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

.faq-answer {
  max-width: 780px;
  padding: 0 42px 22px 0;
  color: var(--color-text-muted);
}

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

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

.plan-card.is-featured {
  border-color: var(--color-accent);
}

.plan-ribbon {
  position: absolute;
  top: 14px;
  right: 14px;
  border-radius: var(--radius-pill);
  background: var(--color-accent);
  padding: 4px 9px;
  color: var(--color-panel);
  font-size: 11px;
}

.plan-name {
  margin-bottom: 18px;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.06em;
}

.plan-price {
  margin-bottom: 6px;
  color: var(--color-accent-strong);
  font-family: var(--font-display);
  font-size: 44px;
  line-height: 1;
}

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

.plan-features {
  flex: 1;
  margin: 24px 0;
  padding-left: 1.2em;
}

.plan-features li + li {
  margin-top: 8px;
}

.plan-card .button {
  width: 100%;
}

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

.data-table,
.server-table,
.compare-table {
  width: 100%;
  min-width: 720px;
  background: var(--color-panel);
}

.data-table th,
.data-table td,
.server-table th,
.server-table td,
.compare-table th,
.compare-table td {
  border-bottom: 1px solid var(--color-border);
  padding: 14px 16px;
  text-align: left;
  vertical-align: top;
}

.data-table th,
.server-table th,
.compare-table th {
  background: var(--color-panel-soft);
  color: var(--color-text);
  font-size: 13px;
  font-weight: 600;
  white-space: nowrap;
}

.data-table td:first-child,
.server-table td:first-child,
.compare-table td:first-child {
  color: var(--color-text);
  font-weight: 500;
}

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

.server-region {
  margin-top: 34px;
}

.server-region-title {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 12px;
  font-family: var(--font-mono);
  font-size: 13px;
}

.server-region-title::before {
  width: 18px;
  height: 2px;
  flex-shrink: 0;
  background: var(--color-accent);
  content: "";
}

.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;
  align-items: center;
  flex-direction: column;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-panel);
  padding: 24px 16px;
  text-align: center;
}

.platform-card svg {
  width: 30px;
  height: 30px;
  margin-bottom: 15px;
  color: var(--color-accent);
}

.platform-card h3 {
  margin-bottom: 6px;
  font-size: 17px;
}

.platform-card p {
  flex: 1;
  color: var(--color-text-muted);
  font-size: 13px;
}

.platform-card .button {
  width: 100%;
  padding-inline: 12px;
  font-size: 13px;
}

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

.article-card {
  display: flex;
  min-width: 0;
  flex-direction: column;
  border-top: 2px solid var(--color-accent);
  border-right: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
  border-left: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-panel);
  padding: 24px;
}

.article-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 14px;
  margin-bottom: 16px;
  color: var(--color-text-muted);
  font-family: var(--font-mono);
  font-size: 11px;
}

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

.article-card p {
  flex: 1;
  color: var(--color-text-muted);
  font-size: 14px;
}

.article-link {
  color: var(--color-accent-strong);
  font-weight: 600;
}

.callout {
  border-left: 3px solid var(--color-accent);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  background: var(--color-panel-soft);
  padding: 20px 22px;
}

.callout-title {
  margin-bottom: 6px;
  color: var(--color-accent-strong);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
}

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

.end-promo {
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: center;
  gap: 28px;
  border: 1px solid var(--color-accent);
  border-radius: var(--radius-md);
  background: var(--color-panel);
  padding: 30px;
}

.end-promo h2 {
  margin-bottom: 8px;
  font-size: 30px;
}

.end-promo p {
  margin-bottom: 0;
  color: var(--color-text-muted);
}

.feature-browser {
  display: grid;
  grid-template-columns: 300px minmax(0, 1fr);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-panel);
}

.feature-list {
  border-right: 1px solid var(--color-border);
}

.feature-option {
  display: grid;
  width: 100%;
  grid-template-columns: 52px minmax(0, 1fr);
  align-items: center;
  border: 0;
  border-bottom: 1px solid var(--color-border);
  border-left: 3px solid transparent;
  background: transparent;
  padding: 17px 18px 17px 15px;
  text-align: left;
}

.feature-option:last-child {
  border-bottom: 0;
}

.feature-option[aria-selected="true"] {
  border-left-color: var(--color-accent);
  background: var(--color-panel-soft);
}

.feature-number {
  color: var(--color-text-muted);
  font-family: var(--font-mono);
  font-size: 12px;
}

.feature-option[aria-selected="true"] .feature-number {
  color: var(--color-accent-strong);
}

.feature-detail {
  padding: 40px;
}

.parameter-line {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 10px 20px;
  margin-top: 24px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xs);
  padding: 12px 14px;
  color: var(--color-text-muted);
  font-family: var(--font-mono);
  font-size: 12px;
}

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

.preview-section {
  padding-top: 88px;
  padding-bottom: 88px;
  border-top: 1px solid var(--color-border);
}

.preview-section-title {
  margin-bottom: 36px;
  font-size: 40px;
}

.preview-note {
  max-width: 740px;
  color: var(--color-text-muted);
}

.preview-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 22px;
}

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

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

.token-card {
  overflow: hidden;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-panel);
}

.token-swatch {
  height: 84px;
  border-bottom: 1px solid var(--color-border);
}

.token-swatch.canvas { background: var(--color-canvas); }
.token-swatch.panel { background: var(--color-panel); }
.token-swatch.soft { background: var(--color-panel-soft); }
.token-swatch.border { background: var(--color-border); }
.token-swatch.accent { background: var(--color-accent); }
.token-swatch.accent-strong { background: var(--color-accent-strong); }
.token-swatch.text { background: var(--color-text); }
.token-swatch.muted { background: var(--color-text-muted); }
.token-swatch.success { background: var(--color-success); }
.token-swatch.warning { background: var(--color-warning); }
.token-swatch.error { background: var(--color-error); }

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

.type-sample {
  border-bottom: 1px solid var(--color-border);
  padding: 22px 0;
}

.type-display {
  font-family: var(--font-display);
  font-size: clamp(42px, 6vw, 70px);
  font-weight: 400;
  line-height: 1.1;
}

.type-body {
  max-width: 720px;
  color: var(--color-text-muted);
  font-size: 18px;
}

.type-mono {
  color: var(--color-accent-strong);
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.08em;
}

.button-demo {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.preview-footer {
  margin-top: 0;
}

@media (max-width: 960px) {
  .hero-title {
    font-size: 38px;
  }

  .port-row {
    flex-wrap: wrap;
    justify-content: center;
  }

  .plan-grid,
  .article-grid {
    grid-template-columns: 1fr;
  }

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

  .feature-browser {
    grid-template-columns: 1fr;
  }

  .feature-list {
    border-right: 0;
    border-bottom: 1px solid var(--color-border);
  }

  .feature-detail {
    padding: 28px;
  }

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

@media (max-width: 768px) {
  .hero {
    padding-top: 28px;
  }

  .hero-title {
    font-size: clamp(32px, 9.6vw, 40px);
  }

  .hero-cta {
    width: 100%;
  }

  .hero-sub {
    font-size: 15px;
  }

  .trust-row {
    align-items: stretch;
    flex-direction: column;
    gap: 8px;
  }

  .trust-item {
    justify-content: flex-start;
    text-align: left;
  }

  .platform-row {
    display: grid;
    width: 100%;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 10px;
  }

  .platform-token {
    justify-content: center;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xs);
    padding: 9px 6px;
    font-size: 12px;
  }

  .tunnel-card {
    margin-top: 24px;
    padding: 12px 10px 10px;
  }

  .tunnel-svg {
    min-width: 660px;
  }

  .tunnel-card[data-hero-visual] {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
  }

  .port-row {
    min-width: 660px;
    display: grid;
    grid-template-columns: repeat(6, minmax(92px, 1fr));
    padding-inline: 6px;
  }

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

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

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

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

  .preview-section {
    padding-top: 68px;
    padding-bottom: 68px;
  }

  .preview-section-title {
    font-size: 34px;
  }
}

@media (max-width: 480px) {
  .hero-cta .btn-main,
  .hero-cta .btn-sub {
    width: 100%;
  }

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

  .platform-token:last-child {
    grid-column: 1 / -1;
  }

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

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

  .tab-panel,
  .feature-detail {
    padding: 20px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .hero-rise {
    opacity: 1;
    animation: none;
  }

  .hero-title .highlight::after {
    transform: scaleX(1);
    animation: none;
  }
}