:root {
  color-scheme: light;
  --color-bg: oklch(1 0 0);
  --color-surface: oklch(0.9787 0.0017 247.84);
  --color-surface-muted: oklch(0.958 0.003 247.84);
  --color-surface-strong: oklch(0.9189 0 0);
  --color-ink: oklch(0.173 0 0);
  --color-ink-soft: oklch(0.325 0 0);
  --color-muted: oklch(0.5278 0 0);
  --color-border: oklch(0.9189 0 0);
  --color-border-strong: oklch(0.82 0 0);
  --color-primary: oklch(0.7149 0.1805 52.68);
  --color-primary-hover: oklch(0.6345 0.1706 48.84);
  --color-primary-soft: oklch(0.9686 0.0194 60.18);
  --color-primary-ink: oklch(0.5258 0.1402 49.39);
  --color-brand-black: oklch(0.1149 0 0);
  --color-brand-panel: oklch(0.173 0 0);
  --color-brand-white: oklch(1 0 0);
  --color-low: oklch(0.43 0.12 151);
  --color-low-soft: oklch(0.95 0.035 151);
  --color-medium: oklch(0.48 0.12 72);
  --color-medium-soft: oklch(0.95 0.04 72);
  --color-high: oklch(0.50 0.17 25);
  --color-high-soft: oklch(0.95 0.035 25);
  --color-info: oklch(0.48 0.12 245);
  --color-info-soft: oklch(0.95 0.03 245);
  --color-violet: oklch(0.48 0.11 295);
  --color-violet-soft: oklch(0.95 0.025 295);
  --color-rose: oklch(0.52 0.13 12);
  --color-rose-soft: oklch(0.96 0.026 12);
  --font-sans: "Inter", "MiSans", system-ui, -apple-system, "Segoe UI", "PingFang SC", "Microsoft YaHei", Arial, sans-serif;
  --shadow-card: 0 1px 2px oklch(0.12 0 0 / 0.05), 0 12px 34px oklch(0.12 0 0 / 0.055);
  --shadow-focus: 0 0 0 4px oklch(0.7149 0.1805 52.68 / 0.22);
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --page-width: 1232px;
  --transition: 180ms cubic-bezier(0.22, 1, 0.36, 1);
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 92px;
}

body {
  margin: 0;
  min-width: 320px;
  background: var(--color-bg);
  color: var(--color-ink);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

button,
input {
  color: inherit;
  font: inherit;
}

button,
a {
  -webkit-tap-highlight-color: transparent;
}

button {
  border: 0;
}

a {
  color: inherit;
  text-decoration: none;
}

svg {
  display: block;
}

[hidden] {
  display: none !important;
}

.page-shell {
  width: min(100% - 48px, var(--page-width));
  margin-inline: auto;
}

.visually-hidden {
  position: absolute !important;
  width: 1px !important;
  height: 1px !important;
  padding: 0 !important;
  margin: -1px !important;
  overflow: hidden !important;
  clip: rect(0, 0, 0, 0) !important;
  white-space: nowrap !important;
  border: 0 !important;
}

.skip-link {
  position: fixed;
  top: 12px;
  left: 12px;
  z-index: 100;
  transform: translateY(-160%);
  border-radius: var(--radius-sm);
  background: var(--color-ink);
  color: white;
  padding: 10px 16px;
  font-weight: 700;
  transition: transform var(--transition);
}

.skip-link:focus {
  transform: translateY(0);
}

:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 3px;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  border-bottom: 1px solid var(--color-border);
  background: var(--color-bg);
}

.site-header__inner {
  display: flex;
  min-height: 72px;
  align-items: center;
  gap: 36px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--color-ink);
  font-size: 20px;
  font-weight: 800;
  letter-spacing: -0.03em;
}

.brand__mark {
  width: 28px;
  height: 28px;
  color: var(--color-primary);
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 18px;
  margin-left: auto;
  color: var(--color-ink-soft);
  font-size: 13px;
  font-weight: 600;
}

.site-nav a {
  position: relative;
  padding-block: 23px;
  transition: color var(--transition);
}

.site-nav a::after {
  position: absolute;
  right: 0;
  bottom: 15px;
  left: 0;
  height: 2px;
  border-radius: 999px;
  background: var(--color-primary);
  content: "";
  opacity: 0;
  transform: scaleX(0.4);
  transition: opacity var(--transition), transform var(--transition);
}

.site-nav a:hover,
.site-nav a:focus-visible {
  color: var(--color-primary-ink);
}

.site-nav a:hover::after,
.site-nav a:focus-visible::after {
  opacity: 1;
  transform: scaleX(1);
}

.header-status {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  border: 1px solid var(--color-border);
  border-radius: 999px;
  background: var(--color-surface);
  padding: 7px 12px;
  color: var(--color-ink-soft);
  font-size: 13px;
  font-weight: 650;
}

.header-status__dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--color-low);
  box-shadow: 0 0 0 3px var(--color-low-soft);
}

.language-switch {
  display: inline-flex;
  min-height: 38px;
  align-items: center;
  justify-content: center;
  border: 1px solid oklch(1 0 0 / 0.25);
  border-radius: 999px;
  padding: 7px 12px;
  color: var(--color-brand-white);
  font-size: 13px;
  font-weight: 750;
  white-space: nowrap;
  transition: border-color var(--transition), color var(--transition), background var(--transition);
}

.language-switch:hover,
.language-switch:focus-visible {
  border-color: var(--color-primary);
  background: oklch(1 0 0 / 0.08);
  color: var(--color-primary);
}

.seo-breadcrumb {
  display: flex;
  align-items: center;
  gap: 9px;
  padding-top: 18px;
  color: var(--color-muted);
  font-size: 13px;
  font-weight: 650;
}

.seo-breadcrumb a:hover,
.seo-breadcrumb a:focus-visible {
  color: var(--color-primary-ink);
}

.hero {
  padding-block: 82px 48px;
  text-align: center;
}

.hero__label,
.section-label,
.result-card__kicker {
  margin: 0;
  color: var(--color-primary-ink);
  font-size: 13px;
  font-weight: 750;
  letter-spacing: 0.02em;
}

.hero h1 {
  max-width: 900px;
  margin: 12px auto 20px;
  color: var(--color-ink);
  font-size: 48px;
  font-weight: 820;
  letter-spacing: -0.04em;
  line-height: 1.18;
  text-wrap: balance;
}

.hero h1 span {
  color: var(--color-primary-ink);
}

.hero__description {
  max-width: 760px;
  margin: 0 auto;
  color: var(--color-muted);
  font-size: 17px;
  line-height: 1.85;
  text-wrap: pretty;
}

.lookup {
  padding-bottom: 100px;
}

.current-ip-panel {
  display: grid;
  grid-template-columns: minmax(210px, 0.8fr) minmax(260px, 1.4fr) auto;
  align-items: center;
  gap: 28px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  background: var(--color-surface);
  padding: 24px;
}

.current-ip-panel__identity {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 12px;
}

.field-label {
  flex-basis: 100%;
  color: var(--color-primary-ink);
  font-size: 13px;
  font-weight: 750;
}

.current-ip-panel__address,
.ip-chip,
.public-ip-list strong {
  font-variant-numeric: tabular-nums;
  overflow-wrap: anywhere;
}

.current-ip-panel__address {
  font-size: 21px;
  letter-spacing: -0.02em;
}

.current-ip-panel__note {
  margin: 0;
  color: var(--color-muted);
  font-size: 14px;
}

.current-ip-panel__actions,
.result-actions,
.lookup-tools {
  display: flex;
  align-items: center;
  gap: 8px;
}

.tag,
.state-pill,
.risk-badge,
.ip-chip {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 26px;
  border-radius: 999px;
  padding: 3px 10px;
  font-size: 12px;
  font-weight: 750;
  line-height: 1.2;
}

.tag--neutral,
.ip-chip {
  border: 1px solid var(--color-border);
  background: var(--color-bg);
  color: var(--color-ink-soft);
}

.button {
  display: inline-flex;
  min-height: 44px;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border-radius: var(--radius-sm);
  padding: 0 16px;
  cursor: pointer;
  font-size: 14px;
  font-weight: 720;
  line-height: 1;
  transition: background-color var(--transition), border-color var(--transition), color var(--transition), transform var(--transition);
}

.button:active:not(:disabled) {
  transform: translateY(1px);
}

.button:disabled {
  cursor: not-allowed;
  opacity: 0.48;
}

.button--primary {
  border: 1px solid var(--color-primary);
  background: var(--color-primary);
  color: white;
}

.button--primary:hover:not(:disabled) {
  border-color: var(--color-primary-hover);
  background: var(--color-primary-hover);
}

.button--primary:focus-visible {
  box-shadow: var(--shadow-focus);
}

.button--secondary {
  border: 1px solid var(--color-border-strong);
  background: var(--color-bg);
  color: var(--color-ink-soft);
}

.button--secondary:hover:not(:disabled) {
  border-color: var(--color-primary);
  background: var(--color-primary-soft);
  color: var(--color-primary-ink);
}

.button--text {
  background: transparent;
  color: var(--color-primary-ink);
}

.button--text:hover:not(:disabled) {
  background: var(--color-primary-soft);
}

.lookup-form {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 126px;
  gap: 10px;
  max-width: 820px;
  margin: 28px auto 0;
}

.lookup-form__input {
  width: 100%;
  height: 52px;
  border: 1px solid var(--color-border-strong);
  border-radius: var(--radius-md);
  background: var(--color-bg);
  padding: 0 17px;
  color: var(--color-ink);
  font-size: 16px;
  outline: none;
  transition: border-color var(--transition), box-shadow var(--transition);
}

.lookup-form__input::placeholder {
  color: var(--color-muted);
  opacity: 1;
}

.lookup-form__input:hover {
  border-color: var(--color-muted);
}

.lookup-form__input:focus {
  border-color: var(--color-primary);
  box-shadow: var(--shadow-focus);
}

.lookup-form__input[aria-invalid="true"] {
  border-color: var(--color-high);
  box-shadow: 0 0 0 4px oklch(0.50 0.17 25 / 0.12);
}

.lookup-form__submit {
  min-height: 52px;
  border-radius: var(--radius-md);
}

.button-spinner {
  display: none;
  width: 16px;
  height: 16px;
  border: 2px solid oklch(1 0 0 / 0.4);
  border-top-color: white;
  border-radius: 50%;
  animation: spin 700ms linear infinite;
}

.upcoming-tools .tag--available,
.upcoming-tools .tag--available:hover,
.upcoming-tools .tag--available:focus-visible,
body .query-status--corrected::before {
  color: var(--color-brand-black);
}

.is-querying .button-spinner {
  display: block;
}

.lookup-tools {
  justify-content: center;
  margin-top: 10px;
}

.text-action {
  border-radius: 6px;
  background: transparent;
  padding: 7px 9px;
  color: var(--color-muted);
  cursor: pointer;
  font-size: 13px;
  font-weight: 650;
}

.text-action:hover:not(:disabled) {
  background: var(--color-surface-muted);
  color: var(--color-primary-ink);
}

.text-action:disabled {
  cursor: not-allowed;
  opacity: 0.45;
}

.examples {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 6px 12px;
  margin-top: 4px;
  color: var(--color-muted);
  font-size: 13px;
}

.examples button {
  border-bottom: 1px dashed var(--color-border-strong);
  background: transparent;
  padding: 0;
  color: var(--color-ink-soft);
  cursor: pointer;
  font-variant-numeric: tabular-nums;
}

.examples button:hover {
  border-color: var(--color-primary);
  color: var(--color-primary-ink);
}

.query-status {
  min-height: 27px;
  margin: 8px auto 0;
  color: var(--color-high);
  text-align: center;
  font-size: 14px;
  font-weight: 620;
}

.privacy-note {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  margin-top: 28px;
  border: 1px solid oklch(0.88 0.04 72);
  border-radius: var(--radius-md);
  background: var(--color-medium-soft);
  padding: 18px 20px;
  color: oklch(0.36 0.07 72);
}

.privacy-note svg {
  flex: 0 0 auto;
  width: 24px;
  height: 24px;
  margin-top: 2px;
}

.privacy-note strong {
  font-size: 14px;
}

.privacy-note p {
  margin: 2px 0 0;
  font-size: 13px;
}

.results {
  margin-top: 64px;
}

.results__heading,
.history-panel__header,
.map-section__heading {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: 20px;
}

.results__heading h2,
.history-panel__header h2,
.map-section__heading h3 {
  margin: 3px 0 0;
  font-size: 28px;
  letter-spacing: -0.025em;
  line-height: 1.25;
}

.ip-chip {
  max-width: min(50%, 420px);
  min-height: 34px;
  padding-inline: 13px;
  font-size: 13px;
}

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

.skeleton-card,
.result-card {
  min-width: 0;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  background: var(--color-bg);
  box-shadow: var(--shadow-card);
  padding: 24px;
}

.skeleton-card {
  min-height: 390px;
}

.skeleton-card span {
  display: block;
  height: 16px;
  margin-bottom: 22px;
  border-radius: 999px;
  background: var(--color-surface-strong);
  animation: skeleton-pulse 1.25s ease-in-out infinite alternate;
}

.skeleton-card span:first-child {
  width: 42%;
  height: 26px;
  margin-bottom: 42px;
}

.skeleton-card span:nth-child(2) {
  width: 88%;
}

.skeleton-card span:nth-child(3) {
  width: 72%;
}

.skeleton-card span:nth-child(4) {
  width: 80%;
}

.result-error {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  border: 1px solid oklch(0.83 0.07 25);
  border-radius: var(--radius-lg);
  background: var(--color-high-soft);
  padding: 24px;
  color: oklch(0.36 0.11 25);
}

.result-error svg {
  width: 26px;
  height: 26px;
  flex: 0 0 auto;
}

.result-error h3,
.result-error p {
  margin: 0;
}

.result-error p {
  margin-top: 4px;
  color: oklch(0.42 0.07 25);
}

.partial-warning {
  margin-bottom: 20px;
  border: 1px solid oklch(0.85 0.05 72);
  border-radius: var(--radius-md);
  background: var(--color-medium-soft);
  padding: 13px 16px;
  color: oklch(0.38 0.07 72);
  font-size: 14px;
  font-weight: 620;
}

.result-card__header {
  display: flex;
  align-items: center;
  gap: 13px;
  margin-bottom: 22px;
}

.result-card__header h3 {
  margin: 1px 0 0;
  font-size: 20px;
  letter-spacing: -0.02em;
}

.result-card__kicker {
  color: var(--color-muted);
  font-size: 11px;
}

.icon-box {
  display: inline-flex;
  width: 42px;
  height: 42px;
  flex: 0 0 auto;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-md);
}

.icon-box svg {
  width: 23px;
  height: 23px;
}

.icon-box--teal {
  background: var(--color-primary-soft);
  color: var(--color-primary-ink);
}

.icon-box--rose {
  background: var(--color-rose-soft);
  color: var(--color-rose);
}

.icon-box--blue {
  background: var(--color-info-soft);
  color: var(--color-info);
}

.icon-box--violet {
  background: var(--color-violet-soft);
  color: var(--color-violet);
}

.risk-summary {
  display: grid;
  grid-template-columns: auto 1fr;
  align-items: center;
  gap: 8px 12px;
  border-radius: var(--radius-md);
  background: var(--color-surface);
  padding: 18px;
}

.risk-summary strong {
  font-size: 17px;
}

.risk-summary p {
  grid-column: 1 / -1;
  margin: 0;
  color: var(--color-muted);
  font-size: 13px;
}

.risk-badge--low {
  background: var(--color-low-soft);
  color: var(--color-low);
}

.risk-badge--medium {
  background: var(--color-medium-soft);
  color: var(--color-medium);
}

.risk-badge--high {
  background: var(--color-high-soft);
  color: var(--color-high);
}

.signal-list {
  display: grid;
  gap: 9px;
  margin: 18px 0 0;
  padding: 0;
  list-style: none;
}

.signal-list li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  color: var(--color-ink-soft);
  font-size: 14px;
}

.signal-list li::before {
  width: 8px;
  height: 8px;
  flex: 0 0 auto;
  margin-top: 8px;
  border-radius: 50%;
  background: var(--color-primary);
  content: "";
}

.method-note {
  margin: 20px 0 0;
  border-top: 1px solid var(--color-border);
  padding-top: 16px;
  color: var(--color-muted);
  font-size: 12px;
}

.card-unavailable {
  border-radius: var(--radius-md);
  background: var(--color-surface-muted);
  padding: 18px;
  color: var(--color-muted);
  font-size: 14px;
}

.data-list {
  margin: 0;
}

.data-list > div {
  display: grid;
  grid-template-columns: minmax(100px, 0.42fr) minmax(0, 1fr);
  gap: 16px;
  border-bottom: 1px solid var(--color-border);
  padding: 12px 0;
}

.data-list > div:first-child {
  padding-top: 0;
}

.data-list > div:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}

.data-list dt {
  color: var(--color-muted);
  font-size: 13px;
}

.data-list dd {
  min-width: 0;
  margin: 0;
  color: var(--color-ink);
  font-size: 14px;
  font-weight: 650;
  overflow-wrap: anywhere;
  text-align: right;
}

.state-pill {
  min-width: 46px;
  min-height: 25px;
  background: var(--color-surface-muted);
  color: var(--color-muted);
}

.state-pill--clear {
  background: var(--color-low-soft);
  color: var(--color-low);
}

.state-pill--detected {
  background: var(--color-high-soft);
  color: var(--color-high);
}

.map-section {
  margin-top: 24px;
}

.map-section__heading {
  align-items: center;
}

.map {
  width: 100%;
  height: 420px;
  overflow: hidden;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  background: var(--color-surface-muted);
}

.map .leaflet-control-attribution {
  font-family: var(--font-sans);
  font-size: 10px;
}

.map-fallback {
  margin: 10px 0 0;
  color: var(--color-high);
  font-size: 13px;
}

.map-disclaimer {
  margin: 10px 0 0;
  color: var(--color-muted);
  font-size: 12px;
  text-align: center;
}

.result-actions {
  justify-content: flex-end;
  margin-top: 20px;
}

.history-panel {
  margin-top: 72px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  background: var(--color-surface);
  padding: 24px;
}

.history-panel__header {
  align-items: center;
  margin-bottom: 12px;
}

.history-panel__header h2 {
  font-size: 22px;
}

.history-list {
  display: grid;
}

.history-item {
  display: grid;
  grid-template-columns: minmax(180px, 0.8fr) minmax(180px, 1fr) auto;
  align-items: center;
  gap: 16px;
  border-top: 1px solid var(--color-border);
  background: transparent;
  padding: 14px 4px;
  color: var(--color-ink);
  cursor: pointer;
  text-align: left;
}

.history-item:hover {
  color: var(--color-primary-ink);
}

.history-item strong {
  font-size: 14px;
  overflow-wrap: anywhere;
}

.history-item span {
  color: var(--color-muted);
  font-size: 13px;
}

.history-item time {
  color: var(--color-muted);
  font-size: 12px;
  white-space: nowrap;
}

.history-empty {
  margin: 0;
  border-top: 1px solid var(--color-border);
  padding: 20px 4px 2px;
  color: var(--color-muted);
  font-size: 14px;
}

.section-block {
  padding-block: 96px;
}

.section-heading {
  max-width: 760px;
  margin-bottom: 36px;
}

.section-heading--compact {
  margin-bottom: 30px;
}

.section-heading h2 {
  margin: 7px 0 12px;
  font-size: 36px;
  letter-spacing: -0.035em;
  line-height: 1.24;
  text-wrap: balance;
}

.section-heading p:last-child {
  max-width: 680px;
  margin: 0;
  color: var(--color-muted);
  text-wrap: pretty;
}

.tool-ecosystem {
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(0, 0.92fr);
  gap: 22px;
}

.featured-tool {
  display: flex;
  min-height: 430px;
  flex-direction: column;
  align-items: flex-start;
  border-radius: var(--radius-xl);
  background: var(--color-ink);
  padding: 38px;
  color: white;
}

.featured-tool__status {
  border-radius: 999px;
  background: oklch(1 0 0 / 0.1);
  padding: 6px 11px;
  color: var(--color-primary);
  font-size: 12px;
  font-weight: 750;
}

.featured-tool svg {
  width: 58px;
  height: 58px;
  margin-top: auto;
  color: var(--color-primary);
}

.featured-tool h3 {
  margin: 22px 0 10px;
  font-size: 30px;
  letter-spacing: -0.03em;
}

.featured-tool p {
  max-width: 52ch;
  margin: 0;
  color: oklch(0.82 0 0);
}

.featured-tool a {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-top: 24px;
  border-bottom: 1px solid var(--color-primary);
  padding-bottom: 2px;
  color: var(--color-primary);
  font-weight: 750;
}

.upcoming-tools {
  display: grid;
  gap: 12px;
}

.upcoming-tools article {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  gap: 8px 16px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  background: var(--color-bg);
  padding: 23px;
}

.upcoming-tools article.upcoming-tool--available {
  border-color: color-mix(in oklch, var(--color-primary) 32%, var(--color-border));
  background: var(--color-primary-soft);
}

.upcoming-tools article > div {
  display: flex;
  align-items: center;
  gap: 12px;
}

.upcoming-tools article > div span {
  color: var(--color-primary-ink);
  font-size: 12px;
  font-weight: 800;
}

.upcoming-tools h3 {
  margin: 0;
  font-size: 17px;
}

.upcoming-tools h3 a {
  color: inherit;
  text-decoration: none;
}

.upcoming-tools h3 a:hover,
.upcoming-tools h3 a:focus-visible {
  color: var(--color-primary-ink);
}

.upcoming-tools p {
  grid-column: 1;
  margin: 0;
  color: var(--color-muted);
  font-size: 13px;
}

.upcoming-tools .tag {
  grid-column: 2;
  grid-row: 1 / span 2;
}

.upcoming-tools .tag--available {
  border-color: transparent;
  background: var(--color-primary);
  color: var(--color-bg);
  text-decoration: none;
}

.upcoming-tools .tag--available:hover,
.upcoming-tools .tag--available:focus-visible {
  background: var(--color-primary-hover);
  color: var(--color-bg);
}

.knowledge-section {
  background: var(--color-surface-muted);
  padding-block: 96px;
}

.knowledge-layout {
  display: grid;
  grid-template-columns: 1.1fr 0.95fr 0.95fr;
  gap: 44px;
}

.knowledge-layout article {
  min-width: 0;
}

.knowledge-layout h3,
.signal-guide h3 {
  margin: 0 0 14px;
  font-size: 22px;
  letter-spacing: -0.02em;
}

.knowledge-layout p {
  color: var(--color-ink-soft);
}

.protocol-pair {
  display: grid;
  gap: 12px;
  margin-top: 24px;
}

.protocol-pair > div {
  border-radius: var(--radius-md);
  background: var(--color-bg);
  padding: 17px;
}

.protocol-pair strong {
  color: var(--color-primary-ink);
}

.protocol-pair p {
  margin: 5px 0 0;
  color: var(--color-muted);
  font-size: 13px;
}

.fact-list {
  display: grid;
  gap: 4px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.fact-list li {
  position: relative;
  padding: 12px 0 12px 28px;
}

.fact-list li::before {
  position: absolute;
  top: 18px;
  left: 2px;
  display: inline-flex;
  width: 16px;
  height: 16px;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  font-size: 10px;
  font-weight: 900;
  line-height: 1;
}

.fact-list--can li::before {
  background: var(--color-low-soft);
  color: var(--color-low);
  content: "✓";
}

.fact-list--cannot li::before {
  background: var(--color-surface-strong);
  color: var(--color-muted);
  content: "–";
}

.fact-list strong,
.fact-list span {
  display: block;
}

.fact-list strong {
  font-size: 14px;
}

.fact-list span {
  margin-top: 3px;
  color: var(--color-muted);
  font-size: 13px;
}

.signal-guide {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  margin-top: 52px;
  border-radius: var(--radius-xl);
  background: var(--color-bg);
  padding: 34px;
}

.signal-guide > div > p:last-child {
  margin: 8px 0 0;
  color: var(--color-muted);
}

.signal-guide dl {
  margin: 0;
}

.signal-guide dl > div {
  display: grid;
  grid-template-columns: 110px 1fr;
  gap: 18px;
  border-bottom: 1px solid var(--color-border);
  padding: 12px 0;
}

.signal-guide dl > div:last-child {
  border-bottom: 0;
}

.signal-guide dt {
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 750;
}

.signal-guide dd {
  margin: 0;
  color: var(--color-muted);
  font-size: 13px;
}

.risk-dot {
  width: 9px;
  height: 9px;
  border-radius: 50%;
}

.risk-dot--low {
  background: var(--color-low);
}

.risk-dot--medium {
  background: var(--color-medium);
}

.risk-dot--high {
  background: var(--color-high);
}

.public-ip-list {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.public-ip-list button {
  display: flex;
  min-width: 210px;
  flex: 1 1 210px;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-bg);
  padding: 15px 16px;
  cursor: pointer;
  text-align: left;
  transition: border-color var(--transition), background-color var(--transition), transform var(--transition);
}

.public-ip-list button:hover {
  border-color: var(--color-primary);
  background: var(--color-primary-soft);
  transform: translateY(-1px);
}

.public-ip-list strong {
  color: var(--color-primary-ink);
  font-size: 14px;
}

.public-ip-list span {
  color: var(--color-muted);
  font-size: 12px;
  text-align: right;
}

.faq-section {
  padding-block: 32px 120px;
}

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

.faq-list details {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-surface);
  transition: border-color var(--transition), background-color var(--transition);
}

.faq-list details[open] {
  border-color: var(--color-border-strong);
  background: var(--color-bg);
}

.faq-list summary {
  position: relative;
  padding: 19px 52px 19px 20px;
  cursor: pointer;
  font-size: 15px;
  font-weight: 720;
  list-style: none;
}

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

.faq-list summary::after {
  position: absolute;
  top: 50%;
  right: 20px;
  width: 18px;
  height: 18px;
  color: var(--color-primary-ink);
  content: "+";
  font-size: 20px;
  font-weight: 500;
  line-height: 16px;
  text-align: center;
  transform: translateY(-50%);
}

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

.faq-list p {
  max-width: 78ch;
  margin: -2px 52px 20px 20px;
  color: var(--color-muted);
  font-size: 14px;
}

.site-footer {
  background: var(--color-brand-black);
  color: oklch(0.91 0 0);
  padding-block: 72px 28px;
}

.site-footer__grid {
  display: grid;
  grid-template-columns: minmax(260px, 0.7fr) minmax(0, 2fr);
  gap: 64px;
}

.brand--footer {
  color: white;
}

.site-footer__brand p {
  max-width: 44ch;
  margin: 18px 0 0;
  color: oklch(0.72 0 0);
  font-size: 14px;
}

.site-footer nav {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 11px;
}

.site-footer__grid > nav {
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  align-content: start;
  align-items: start;
  column-gap: 24px;
  row-gap: 14px;
}

.site-footer__grid > nav h2 {
  grid-column: 1 / -1;
}

.site-footer nav h2 {
  margin: 0 0 5px;
  color: white;
  font-size: 14px;
}

.site-footer nav a,
.site-footer nav span {
  color: oklch(0.72 0 0);
  font-size: 13px;
}

.site-footer nav a:hover {
  color: var(--color-primary);
}

.site-footer__bottom {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  margin-top: 58px;
  border-top: 1px solid oklch(1 0 0 / 0.11);
  padding-top: 22px;
  color: oklch(0.65 0 0);
  font-size: 12px;
}

.toast {
  position: fixed;
  right: 24px;
  bottom: 24px;
  z-index: 60;
  max-width: min(360px, calc(100vw - 48px));
  border: 1px solid oklch(1 0 0 / 0.12);
  border-radius: var(--radius-md);
  background: var(--color-ink);
  box-shadow: 0 16px 44px oklch(0.1 0 0 / 0.22);
  padding: 13px 16px;
  color: white;
  font-size: 14px;
  font-weight: 620;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

@keyframes skeleton-pulse {
  from { opacity: 0.55; }
  to { opacity: 1; }
}

@media (max-width: 980px) {
  .site-header__inner {
    gap: 20px;
  }

  .site-nav {
    gap: 18px;
  }

  .current-ip-panel {
    grid-template-columns: 1fr auto;
  }

  .current-ip-panel__note {
    grid-column: 1 / -1;
    grid-row: 2;
  }

  .knowledge-layout {
    grid-template-columns: 1fr 1fr;
  }

  .knowledge-intro {
    grid-column: 1 / -1;
  }
}

@media (max-width: 760px) {
  .site-nav {
    display: none;
  }

  .header-status {
    margin-left: auto;
  }

  .hero {
    padding-block: 58px 38px;
  }

  .hero h1 {
    font-size: 38px;
  }

  .current-ip-panel {
    grid-template-columns: 1fr;
  }

  .current-ip-panel__note,
  .current-ip-panel__actions {
    grid-column: 1;
    grid-row: auto;
  }

  .skeleton-grid,
  .result-grid,
  .tool-ecosystem,
  .signal-guide {
    grid-template-columns: 1fr;
  }

  .featured-tool {
    min-height: 390px;
  }

  .knowledge-layout {
    grid-template-columns: 1fr;
  }

  .knowledge-intro {
    grid-column: auto;
  }

  .site-footer__grid {
    grid-template-columns: 1fr;
  }

  .site-footer__brand {
    grid-column: auto;
  }

  .site-footer__grid > nav {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (max-width: 560px) {
  .page-shell {
    width: calc(100% - 48px);
  }

  .site-header__inner {
    min-height: 64px;
  }

  .brand {
    font-size: 18px;
  }

  .brand__mark {
    width: 25px;
    height: 25px;
  }

  .header-status {
    padding: 6px 9px;
    font-size: 11px;
  }

  .hero {
    padding-block: 50px 34px;
  }

  .hero h1 {
    margin-top: 9px;
    font-size: 32px;
    letter-spacing: -0.035em;
  }

  .hero__description {
    font-size: 15px;
  }

  .current-ip-panel {
    gap: 17px;
    padding: 20px;
  }

  .current-ip-panel__actions,
  .result-actions {
    flex-wrap: wrap;
  }

  .lookup-form {
    grid-template-columns: 1fr;
    margin-top: 20px;
  }

  .lookup-form__submit {
    width: 100%;
  }

  .privacy-note {
    padding: 16px;
  }

  .results {
    margin-top: 52px;
  }

  .results__heading,
  .history-panel__header,
  .map-section__heading {
    align-items: flex-start;
  }

  .results__heading {
    flex-direction: column;
    gap: 12px;
  }

  .ip-chip {
    max-width: 100%;
  }

  .skeleton-card,
  .result-card {
    padding: 20px;
  }

  .risk-summary {
    grid-template-columns: 1fr;
  }

  .risk-summary p {
    grid-column: 1;
  }

  .risk-badge {
    justify-self: start;
  }

  .data-list > div {
    grid-template-columns: 96px minmax(0, 1fr);
    gap: 12px;
  }

  .map-section__heading {
    flex-direction: column;
  }

  .map {
    height: 320px;
  }

  .result-actions .button {
    flex: 1 1 130px;
  }

  .history-panel {
    margin-top: 52px;
    padding: 20px;
  }

  .history-item {
    grid-template-columns: 1fr auto;
    gap: 3px 12px;
  }

  .history-item span {
    grid-column: 1;
  }

  .history-item time {
    grid-column: 2;
    grid-row: 1 / span 2;
  }

  .section-block,
  .knowledge-section {
    padding-block: 72px;
  }

  .section-heading h2 {
    font-size: 30px;
  }

  .featured-tool {
    min-height: 420px;
    padding: 28px;
  }

  .featured-tool h3 {
    font-size: 26px;
  }

  .upcoming-tools article {
    grid-template-columns: 1fr;
  }

  .upcoming-tools .tag {
    grid-column: 1;
    grid-row: auto;
    justify-self: start;
  }

  .knowledge-layout {
    gap: 36px;
  }

  .signal-guide {
    gap: 24px;
    padding: 24px;
  }

  .signal-guide dl > div {
    grid-template-columns: 1fr;
    gap: 4px;
  }

  .public-ip-list button {
    min-width: 100%;
  }

  .faq-section {
    padding-block: 20px 88px;
  }

  .faq-list summary {
    padding-left: 16px;
  }

  .faq-list p {
    margin-right: 20px;
    margin-left: 16px;
  }

  .site-footer {
    padding-top: 56px;
  }

  .site-footer__grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .site-footer__brand {
    grid-column: auto;
  }

  .site-footer__grid > nav {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .site-footer__bottom {
    flex-direction: column;
    margin-top: 44px;
  }

  .toast {
    right: 24px;
    bottom: 18px;
    left: 24px;
    max-width: none;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
  }
}

/* MiyaIP official brand layer: black field, white wordmark and orange action path. */
.site-header {
  border-bottom-color: oklch(1 0 0 / 0.12);
  background: oklch(0.1149 0 0 / 0.96);
  color: var(--color-brand-white);
}

.site-header__inner {
  min-height: 64px;
}

.brand {
  min-width: 116px;
  gap: 0;
  color: transparent;
  font-size: 0;
  letter-spacing: 0;
}

.brand::before {
  width: 116px;
  height: 42px;
  flex: 0 0 auto;
  background: url("/assets/miyaip-logo.svg") center / contain no-repeat;
  content: "";
}

.brand__mark,
.brand > span {
  display: none;
}

.site-nav {
  color: oklch(0.86 0 0);
}

.site-nav a::after {
  bottom: 12px;
  background: var(--color-primary);
}

.site-nav a:hover,
.site-nav a:focus-visible {
  color: var(--color-brand-white);
}

.header-status {
  border-color: oklch(1 0 0 / 0.2);
  background: oklch(1 0 0 / 0.06);
  color: oklch(0.9 0 0);
}

.hero {
  position: relative;
  z-index: 0;
  color: var(--color-brand-white);
  isolation: isolate;
}

.hero::before {
  position: absolute;
  z-index: -1;
  top: 0;
  bottom: 0;
  left: 50%;
  width: 100vw;
  background:
    radial-gradient(circle at 50% 125%, oklch(0.7149 0.1805 52.68 / 0.22), transparent 38%),
    var(--color-brand-black);
  content: "";
  transform: translateX(-50%);
}

body .hero__label,
body .hero .section-label {
  color: var(--color-primary);
}

.hero h1 {
  color: var(--color-brand-white);
}

.hero h1 span,
.proxy-list-hero h1 span {
  color: var(--color-primary);
}

.hero__description,
.hero .hero__privacy {
  color: oklch(0.78 0 0);
}

.hero .environment-hero__facts span,
.hero .proxy-list-hero__facts span,
.hero .bandwidth-hero__fact {
  border-color: oklch(1 0 0 / 0.22);
  background: oklch(1 0 0 / 0.07);
  color: oklch(0.92 0 0);
}

.hero .bandwidth-hero__fact small {
  color: oklch(0.74 0 0);
}

.button--primary {
  border-color: var(--color-primary);
  background: var(--color-primary);
  color: var(--color-brand-black);
}

.button--primary:hover:not(:disabled) {
  border-color: var(--color-primary-hover);
  background: var(--color-primary-hover);
  color: var(--color-brand-black);
}

.button-spinner {
  border-color: oklch(0.1149 0 0 / 0.28);
  border-top-color: var(--color-brand-black);
}

.site-footer {
  background: var(--color-brand-black);
  color: oklch(0.92 0 0);
}

.site-footer .brand::before {
  width: 138px;
  height: 50px;
}

.site-footer__brand p,
.site-footer nav a,
.site-footer nav span {
  color: oklch(0.72 0 0);
}

.site-footer nav h2 {
  color: var(--color-primary);
}

.site-footer nav a:hover {
  color: var(--color-brand-white);
}

.site-footer__bottom {
  color: oklch(0.62 0 0);
}

.toast {
  border-color: oklch(1 0 0 / 0.16);
  background: var(--color-brand-panel);
}

@media (max-width: 1160px) {
  .site-nav {
    display: none;
  }

  .language-switch { margin-left: auto; }
  .header-status { margin-left: 0; }
}

@media (max-width: 560px) {
  .brand {
    min-width: 102px;
    font-size: 0;
  }

  .brand::before {
    width: 102px;
    height: 37px;
  }

  .site-footer .brand::before {
    width: 124px;
    height: 44px;
  }

  .header-status {
    width: 10px;
    min-width: 10px;
    overflow: hidden;
    border: 0;
    padding: 0;
    color: transparent;
  }

  .header-status__dot {
    flex: 0 0 auto;
  }

  .language-switch {
    padding-inline: 10px;
  }
}

/* Bilingual navigation: keep long English labels on one stable tool rail. */
html {
  scroll-padding-top: 126px;
}

.site-header__inner {
  display: grid;
  grid-template-columns: minmax(116px, 1fr) auto auto;
  grid-template-rows: 64px 46px;
  column-gap: 12px;
  row-gap: 0;
  min-height: 110px;
}

.language-landing .site-header__inner {
  display: flex;
  min-height: 64px;
}

.language-landing .header-status {
  margin-left: auto;
}

.site-header .brand {
  grid-column: 1;
  grid-row: 1;
  justify-self: start;
}

.site-header .language-switch {
  grid-column: 2;
  grid-row: 1;
  margin-left: 0;
}

.site-header .header-status {
  grid-column: 3;
  grid-row: 1;
  margin-left: 0;
  white-space: nowrap;
}

.site-header .site-nav {
  display: flex;
  grid-column: 1 / -1;
  grid-row: 2;
  width: 100%;
  min-width: 0;
  height: 46px;
  align-items: stretch;
  justify-content: space-between;
  gap: 2px;
  margin-left: 0;
  overflow-x: auto;
  overflow-y: hidden;
  border-top: 1px solid oklch(1 0 0 / 0.1);
  overscroll-behavior-inline: contain;
  scroll-snap-type: inline proximity;
  scrollbar-width: none;
}

.site-header .site-nav::-webkit-scrollbar {
  display: none;
}

.site-header .site-nav a {
  display: inline-flex;
  min-height: 46px;
  flex: 0 0 auto;
  align-items: center;
  border-radius: 8px 8px 0 0;
  padding: 0 9px;
  scroll-snap-align: center;
  white-space: nowrap;
}

.site-header .site-nav a::after {
  right: 9px;
  bottom: 0;
  left: 9px;
}

.site-header .site-nav a:hover,
.site-header .site-nav a:focus-visible {
  background: oklch(1 0 0 / 0.065);
}

.site-header .site-nav a[aria-current="page"] {
  background: oklch(1 0 0 / 0.075);
  color: var(--color-brand-white);
}

.site-header .site-nav a[aria-current="page"]::after {
  opacity: 1;
  transform: scaleX(1);
}

.seo-breadcrumb {
  display: flex;
  min-height: 44px;
  align-items: center;
  gap: 5px;
  margin-block: 12px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-surface);
  padding: 6px 9px;
  color: var(--color-muted);
  font-size: 13px;
  font-weight: 650;
  line-height: 1.3;
}

.seo-breadcrumb__home {
  display: inline-flex;
  min-height: 30px;
  flex: 0 0 auto;
  align-items: center;
  gap: 7px;
  border-radius: 7px;
  padding: 4px 8px;
  color: var(--color-ink-soft);
  transition: background var(--transition), color var(--transition);
}

.seo-breadcrumb__home svg {
  width: 16px;
  height: 16px;
  flex: 0 0 auto;
}

.seo-breadcrumb__home:hover,
.seo-breadcrumb__home:focus-visible {
  background: var(--color-bg);
  color: var(--color-primary-ink);
}

.seo-breadcrumb__separator {
  display: inline-flex;
  flex: 0 0 auto;
  color: var(--color-border-strong);
}

.seo-breadcrumb__separator svg {
  width: 15px;
  height: 15px;
}

.seo-breadcrumb__current {
  min-width: 0;
  overflow-wrap: anywhere;
  color: var(--color-ink);
  font-weight: 730;
}

@media (max-width: 1160px) {
  .site-header .site-nav {
    justify-content: flex-start;
  }

  .site-header .site-nav a {
    padding-inline: 12px;
  }
}

@media (max-width: 560px) {
  html {
    scroll-padding-top: 118px;
  }

  .site-header__inner {
    grid-template-columns: minmax(102px, 1fr) auto auto;
    grid-template-rows: 62px 44px;
    min-height: 106px;
  }

  .site-header .site-nav {
    height: 44px;
    margin-inline: -4px;
    width: calc(100% + 8px);
  }

  .site-header .site-nav a {
    min-height: 44px;
    padding-inline: 11px;
    font-size: 12px;
  }

  .seo-breadcrumb {
    width: calc(100% - 32px);
    margin-block: 10px;
    padding-inline: 7px;
  }

  .seo-breadcrumb__home {
    padding-inline: 7px;
  }
}