/* Hallmark · genre: editorial · macrostructure: Long Document · tone: austere legal editorial · anchor hue: UN blue */
@import url("tokens.css");

html,
body {
  overflow-x: clip;
}

html {
  color-scheme: light dark;
  scroll-behavior: smooth;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100dvh;
  background: var(--color-paper);
  color: var(--color-ink);
  font-family: var(--font-body);
  font-size: var(--text-base);
  line-height: 1.78;
  text-rendering: optimizeLegibility;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background-image: repeating-linear-gradient(
    0deg,
    transparent 0,
    transparent calc(var(--space-xl) - var(--rule-thin)),
    var(--color-rule) var(--space-xl)
  );
  opacity: 0.14;
  z-index: var(--z-base);
}

a {
  color: var(--color-accent);
  text-decoration-thickness: var(--rule-thin);
  text-underline-offset: var(--space-2xs);
}

a:hover {
  text-decoration-thickness: var(--rule-heavy);
}

a:focus-visible,
button:focus-visible,
summary:focus-visible {
  outline: var(--rule-heavy) solid var(--color-focus);
  outline-offset: var(--space-2xs);
}

button {
  font: inherit;
}

.skip-link {
  position: fixed;
  inset-block-start: var(--space-md);
  inset-inline-start: var(--space-md);
  transform: translateY(-180%);
  background: var(--color-ink);
  color: var(--color-paper);
  padding: var(--space-sm) var(--space-md);
  z-index: calc(var(--z-sticky) + 1);
  white-space: nowrap;
}

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

.site-nav {
  display: none;
}

.mobile-nav {
  position: sticky;
  inset-block-start: 0;
  z-index: var(--z-sticky);
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  align-items: start;
  background: var(--color-paper-raised);
  border-block-end: var(--rule-heavy) double var(--color-rule-strong);
}

.site-home-link {
  min-height: 3.25rem;
  display: flex;
  align-items: center;
  padding-inline: clamp(var(--space-md), 4vw, var(--space-lg));
  color: var(--color-accent);
  font-weight: 700;
  text-decoration: none;
  white-space: nowrap;
}

.mobile-nav details {
  min-width: 0;
}

.mobile-nav summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 3.25rem;
  padding-inline: clamp(var(--space-md), 4vw, var(--space-lg));
  cursor: pointer;
  font-family: var(--font-display);
  font-weight: 700;
  list-style: none;
  white-space: nowrap;
}

.mobile-nav summary::-webkit-details-marker {
  display: none;
}

.mobile-nav summary::after {
  content: "目录";
  color: var(--color-accent);
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-weight: 700;
}

.mobile-nav[open] summary::after {
  content: "收起";
}

.mobile-links {
  display: grid;
  gap: var(--space-2xs);
  padding: 0 var(--space-md) var(--space-md);
}

.mobile-links a,
.mobile-links button {
  min-height: 2.75rem;
  display: flex;
  align-items: center;
  padding-inline: var(--space-sm);
  border: var(--rule-thin) solid var(--color-rule);
  background: var(--color-paper);
  color: var(--color-ink);
  text-align: start;
  text-decoration: none;
  white-space: nowrap;
}

.mobile-links [aria-current="page"] {
  border-color: var(--color-accent);
  color: var(--color-accent);
}

.theme-toggle {
  cursor: pointer;
}

.page-shell {
  position: relative;
  z-index: calc(var(--z-base) + 1);
  max-width: 74rem;
  margin-inline: auto;
  padding: var(--space-lg) clamp(var(--space-md), 5vw, var(--space-2xl)) var(--space-3xl);
}

.breadcrumb {
  display: flex;
  gap: var(--space-xs);
  align-items: center;
  overflow-x: auto;
  padding-block: var(--space-sm);
  color: var(--color-muted);
  font-size: var(--text-sm);
  white-space: nowrap;
}

.breadcrumb a {
  color: var(--color-muted);
  white-space: nowrap;
}

.document-head {
  padding-block: var(--space-xl) var(--space-2xl);
  border-block-end: var(--rule-heavy) double var(--color-rule-strong);
}

.document-meta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm) var(--space-lg);
  margin: 0 0 var(--space-lg);
  color: var(--color-muted);
  font-family: var(--font-outlier);
  font-size: var(--text-xs);
  letter-spacing: 0.05em;
}

.page-shell > .document-meta {
  padding-block-start: var(--space-lg);
}

.document-head h1 {
  max-width: 14ch;
  min-width: 0;
  margin: 0;
  color: var(--color-ink);
  font-family: var(--font-display);
  font-size: var(--text-display);
  font-style: normal;
  font-weight: 800;
  letter-spacing: -0.045em;
  line-height: 1.08;
  overflow-wrap: anywhere;
}

.lede {
  max-width: 46ch;
  margin: var(--space-lg) 0 0;
  color: var(--color-ink-soft);
  font-family: var(--font-display);
  font-size: var(--text-md);
  line-height: 1.6;
}

main[data-kb-content] {
  max-width: var(--measure);
  padding-block: var(--space-xl);
}

template {
  display: none;
}

.prose-section {
  display: flow-root;
  padding-block: var(--space-lg) var(--space-xl);
}

.prose-section + .prose-section {
  border-block-start: var(--rule-thin) solid var(--color-rule);
}

h2,
h3 {
  min-width: 0;
  color: var(--color-ink);
  font-family: var(--font-display);
  font-style: normal;
  overflow-wrap: anywhere;
}

h2 {
  margin: 0 0 var(--space-lg);
  font-size: var(--text-xl);
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.28;
}

h3 {
  margin: var(--space-xl) 0 var(--space-sm);
  font-size: var(--text-md);
  font-weight: 800;
  line-height: 1.4;
}

p {
  margin: 0 0 var(--space-md);
}

.prose-section > p:first-of-type::first-letter {
  float: inline-start;
  margin-inline-end: var(--space-xs);
  color: var(--color-seal);
  font-family: var(--font-display);
  font-size: var(--text-3xl);
  font-weight: 800;
  line-height: 0.88;
}

dfn {
  color: var(--color-ink);
  font-style: normal;
  font-weight: 700;
  text-decoration: underline;
  text-decoration-color: var(--color-accent);
  text-decoration-thickness: var(--rule-heavy);
  text-underline-offset: var(--space-2xs);
}

.docket,
.boundary-note,
.source-note {
  margin-block: var(--space-xl);
  padding: var(--space-lg);
  background: var(--color-paper-muted);
  border-block: var(--rule-thin) solid var(--color-rule-strong);
}

.docket h3,
.boundary-note h3,
.source-note h3 {
  margin-block-start: 0;
}

.docket dl {
  display: grid;
  grid-template-columns: minmax(0, 9rem) minmax(0, 1fr);
  gap: var(--space-sm) var(--space-lg);
  margin: 0;
}

.docket dt {
  color: var(--color-seal);
  font-family: var(--font-display);
  font-weight: 800;
}

.docket dd {
  margin: 0;
}

.institution-map {
  margin-block: var(--space-xl);
  border-block: var(--rule-heavy) double var(--color-rule-strong);
}

.institution-row {
  display: grid;
  grid-template-columns: minmax(0, 11rem) minmax(0, 1fr);
  gap: var(--space-lg);
  padding-block: var(--space-md);
  border-block-end: var(--rule-thin) solid var(--color-rule);
}

.institution-row:last-child {
  border-block-end: 0;
}

.institution-row strong {
  font-family: var(--font-display);
  font-size: var(--text-md);
}

.institution-row p {
  margin: 0;
}

.balance-figure {
  margin: var(--space-2xl) 0;
  padding: var(--space-xl) 0;
  border-block: var(--rule-heavy) solid var(--color-ink);
}

.balance-figure figcaption {
  margin-block-start: var(--space-lg);
  color: var(--color-muted);
  font-size: var(--text-sm);
}

.balance-triangle {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--space-md);
}

.balance-axis {
  padding: var(--space-lg);
  border: var(--rule-thin) solid var(--color-rule-strong);
}

.balance-axis strong {
  display: block;
  margin-block-end: var(--space-xs);
  color: var(--color-accent);
  font-family: var(--font-display);
  font-size: var(--text-lg);
}

.balance-axis p {
  margin: 0;
}

.spec-table {
  width: 100%;
  margin-block: var(--space-xl);
  border-collapse: collapse;
  font-variant-numeric: tabular-nums;
}

.spec-table caption {
  margin-block-end: var(--space-sm);
  color: var(--color-muted);
  font-size: var(--text-sm);
  text-align: start;
}

.spec-table th,
.spec-table td {
  padding: var(--space-sm) var(--space-xs);
  border-block-end: var(--rule-thin) solid var(--color-rule);
  text-align: start;
  vertical-align: top;
}

.spec-table th {
  color: var(--color-ink);
  font-family: var(--font-display);
}

.judgment-list {
  margin: var(--space-xl) 0;
  padding: 0;
  list-style: none;
  counter-reset: judgment;
}

.judgment-list li {
  counter-increment: judgment;
  display: grid;
  grid-template-columns: minmax(0, 3rem) minmax(0, 1fr);
  gap: var(--space-md);
  padding-block: var(--space-lg);
  border-block-start: var(--rule-thin) solid var(--color-rule);
}

.judgment-list li::before {
  content: counter(judgment, decimal-leading-zero);
  color: var(--color-seal);
  font-family: var(--font-body);
  font-size: var(--text-md);
  font-weight: 700;
}

.judgment-list h3 {
  margin: 0 0 var(--space-xs);
}

.judgment-list p {
  margin: 0;
}

.page-turn {
  display: grid;
  gap: var(--space-sm);
  margin-block-start: var(--space-2xl);
  padding-block: var(--space-xl);
  border-block-start: var(--rule-heavy) double var(--color-rule-strong);
}

.page-turn a {
  width: fit-content;
  font-family: var(--font-display);
  font-size: var(--text-md);
  font-weight: 800;
  white-space: nowrap;
}

.related-reading {
  margin-block: var(--space-2xl) 0;
}

.related-reading ul,
.source-list {
  padding: 0;
  list-style: none;
}

.related-reading li,
.source-list li {
  padding-block: var(--space-md);
  border-block-start: var(--rule-thin) solid var(--color-rule);
}

.source-list a {
  font-family: var(--font-display);
  font-weight: 800;
}

.source-list p {
  margin: var(--space-xs) 0 0;
  color: var(--color-ink-soft);
}

.foot-dense {
  position: relative;
  z-index: calc(var(--z-base) + 1);
  padding: var(--space-xl) clamp(var(--space-md), 5vw, var(--space-2xl));
  border-block-start: var(--rule-heavy) double var(--color-rule-strong);
  background: var(--color-paper-muted);
  color: var(--color-ink-soft);
  font-family: var(--font-outlier);
  font-size: var(--text-xs);
  line-height: 1.7;
}

.foot-dense p {
  max-width: 78rem;
  margin: 0 auto;
}

.foot-dense a {
  white-space: nowrap;
}

button:active,
summary:active {
  color: var(--color-accent);
}

button:disabled {
  cursor: not-allowed;
  opacity: 0.55;
}

@media (min-width: 40rem) {
  .balance-triangle {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-turn {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    align-items: end;
  }

  .page-turn a:last-child {
    justify-self: end;
  }
}

@media (min-width: 60rem) {
  .mobile-nav {
    position: fixed;
    inset-block: auto var(--space-lg);
    inset-inline-start: var(--space-lg);
    display: block;
    width: calc(var(--rail-width) - (2 * var(--space-lg)));
    background: transparent;
    border: 0;
  }

  .mobile-nav details {
    display: none;
  }

  .site-home-link {
    min-height: 2.75rem;
    padding-inline: var(--space-sm);
    border: var(--rule-thin) solid var(--color-rule-strong);
  }

  .site-nav {
    position: fixed;
    inset-block: 0;
    inset-inline-start: 0;
    z-index: var(--z-sticky);
    display: flex;
    width: var(--rail-width);
    flex-direction: column;
    justify-content: space-between;
    padding: var(--space-xl) var(--space-lg);
    background: var(--color-paper-muted);
    border-inline-end: var(--rule-heavy) double var(--color-rule-strong);
  }

  .rail-wordmark {
    margin: 0;
    color: var(--color-ink);
    font-family: var(--font-display);
    font-size: var(--text-md);
    font-weight: 800;
    line-height: 1.45;
  }

  .rail-kicker {
    margin: var(--space-sm) 0 0;
    color: var(--color-muted);
    font-family: var(--font-body);
    font-size: var(--text-xs);
  }

  .rail-links {
    display: grid;
    gap: var(--space-2xs);
  }

  .rail-links a,
  .rail-links button {
    min-height: 2.75rem;
    display: flex;
    align-items: center;
    padding: var(--space-xs) var(--space-sm);
    border: 0;
    border-inline-start: var(--rule-heavy) solid transparent;
    background: transparent;
    color: var(--color-ink-soft);
    cursor: pointer;
    text-align: start;
    text-decoration: none;
    white-space: nowrap;
  }

  .rail-links a:hover,
  .rail-links button:hover,
  .rail-links [aria-current="page"] {
    border-inline-start-color: var(--color-accent);
    color: var(--color-accent);
  }

  .page-shell,
  .foot-dense {
    margin-inline-start: var(--rail-width);
  }

  .document-head {
    display: grid;
    grid-template-columns: minmax(0, 2fr) minmax(18rem, 1fr);
    gap: var(--space-2xl);
    align-items: end;
  }

  .lede {
    margin: 0;
  }
}

@media (max-width: 39.999rem) {
  .institution-row,
  .docket dl {
    grid-template-columns: minmax(0, 1fr);
    gap: var(--space-xs);
  }

  .spec-table,
  .spec-table tbody,
  .spec-table tr,
  .spec-table th,
  .spec-table td {
    display: block;
  }

  .spec-table thead {
    position: absolute;
    width: 1px;
    height: 1px;
    overflow: hidden;
    clip: rect(0 0 0 0);
  }

  .spec-table tr {
    padding-block: var(--space-md);
    border-block-start: var(--rule-thin) solid var(--color-rule-strong);
  }

  .spec-table td {
    display: grid;
    grid-template-columns: minmax(5.5rem, 0.45fr) minmax(0, 1fr);
    gap: var(--space-sm);
    border: 0;
  }

  .spec-table td::before {
    content: attr(data-label);
    color: var(--color-muted);
    font-family: var(--font-body);
    font-size: var(--text-xs);
  }
}

@media (pointer: coarse) {
  a,
  button,
  summary {
    min-height: 2.75rem;
  }
}

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

  *,
  *::before,
  *::after {
    animation-duration: var(--dur-micro) !important;
    animation-iteration-count: 1 !important;
    transition-duration: var(--dur-micro) !important;
  }
}

@media print {
  .site-nav,
  .mobile-nav,
  .skip-link,
  .page-turn {
    display: none;
  }

  body::before {
    content: none;
  }

  .page-shell,
  .foot-dense {
    margin: 0;
  }

  a {
    color: var(--color-ink);
  }
}