:root {
  --ink: #1b1712;
  --ink-soft: #3f382e;
  --paper: #efe6d4;
  --paper-2: #f7f1e4;
  --rule: #c9bda4;
  --desk: #241c15;
  --usd-top: #1b4462;
  --usd: #10283c;
  --usd-edge: #d5e2ee;
  --cny-top: #8d3038;
  --cny: #641920;
  --cny-edge: #f0d7a4;
  --down: #f6d0cb;
  --up: #d7eadf;
  --sans: "Segoe UI", "Helvetica Neue", Arial, sans-serif;
  --serif: "Iowan Old Style", Palatino, "Palatino Linotype", "Book Antiqua", Georgia, serif;
  --mono: "SF Mono", ui-monospace, Menlo, Consolas, "Liberation Mono", monospace;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--desk);
  color: var(--ink);
  font-family: var(--serif);
  font-size: 17px;
  line-height: 1.5;
}

.wrap {
  max-width: 1120px;
  margin: 0 auto;
  background: var(--paper);
  min-height: 100vh;
  padding: 14px 14px 40px;
}

.skip {
  position: absolute;
  left: 8px;
  top: -40px;
  background: #fff;
  color: var(--ink);
  padding: 6px 10px;
  z-index: 2;
}

.skip:focus { top: 8px; }

a { color: #12324a; }

a:hover { color: #641920; }

a:focus-visible,
button:focus-visible,
input:focus-visible {
  outline: 2px solid var(--ink);
  outline-offset: 2px;
}

.mast { border-bottom: 2px solid var(--ink); padding-bottom: 10px; }

.mast-top,
.mast-mid {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 6px 16px;
  align-items: baseline;
}

.bureau,
.stamp,
.dateline,
.desk-name,
.kicker,
.lamps,
.nav a,
.network a,
.fine,
.mail,
button,
label,
.regime,
.found,
.toc,
.plaque .code,
.mini span,
.snapline,
figcaption,
.caption {
  font-family: var(--sans);
}

.bureau {
  margin: 0;
  font-size: 13px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.stamp,
.dateline,
.desk-name {
  margin: 0;
  font-size: 13px;
  color: var(--ink-soft);
}

.edition {
  margin: 8px 0 0;
  font-size: 42px;
  line-height: 0.92;
  letter-spacing: -0.03em;
}

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

.lamps {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin: 10px 0 0;
  padding: 0;
  list-style: none;
}

.lamps li {
  margin: 0;
  padding: 3px 8px;
  border: 1px solid var(--ink);
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.finder { margin-top: 12px; position: relative; }

.finder label {
  display: block;
  font-size: 12px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  margin-bottom: 4px;
}

.finder input,
.regime-tools input {
  width: 100%;
  max-width: 420px;
  border: 1px solid var(--ink);
  background: var(--paper-2);
  color: var(--ink);
  font: 16px var(--sans);
  padding: 8px 10px;
}

.found {
  margin-top: 8px;
  border: 1px solid var(--rule);
  background: var(--paper-2);
  padding: 8px;
  display: grid;
  gap: 6px;
}

.found[hidden] { display: none; }

.found a { font-family: var(--sans); font-size: 15px; }

.nav {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 12px;
  margin-top: 12px;
}

.nav a {
  font-size: 14px;
  text-decoration: none;
  border-bottom: 1px solid transparent;
}

.nav a[aria-current="page"] {
  border-bottom-color: var(--ink);
  font-weight: 700;
}

.desk {
  display: grid;
  gap: 12px;
  margin-top: 14px;
}

.plaque {
  min-height: 220px;
  padding: 14px 14px 16px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  color: #f6f8fb;
}

.plaque-usd {
  background: linear-gradient(180deg, var(--usd-top), var(--usd) 55%, #0c1c2b);
  box-shadow: inset 0 0 0 1px var(--usd-edge);
}

.plaque-cny {
  background: linear-gradient(180deg, var(--cny-top), var(--cny) 58%, #4a1218);
  box-shadow: inset 0 0 0 1px var(--cny-edge);
}

.plaque .kicker,
.plaque a { color: inherit; }

.plaque .code {
  margin: 0;
  font-size: 13px;
  letter-spacing: 0.05em;
}

.num {
  margin: 8px 0 0;
  font-family: var(--mono);
  font-size: 52px;
  font-weight: 620;
  letter-spacing: -0.04em;
  line-height: 0.9;
}

.unit { font-size: 0.38em; letter-spacing: 0; margin-left: 4px; }

.chg {
  margin: 8px 0 0;
  font-family: var(--mono);
  font-size: 16px;
}

.plaque-usd .chg { color: var(--down); }

.plaque-cny .chg { color: #f8d7a8; }

.plaque .more {
  margin: 12px 0 0;
  font-family: var(--sans);
  font-size: 14px;
}

.rail {
  position: relative;
  background: var(--paper-2);
  border: 1px solid var(--rule);
  padding: 12px 12px 14px 22px;
}

.rail::before {
  content: "";
  position: absolute;
  left: 8px;
  top: 12px;
  bottom: 12px;
  width: 6px;
  background: radial-gradient(circle, var(--desk) 1.15px, transparent 1.25px);
  background-size: 6px 12px;
}

.rail h2 {
  margin: 0 0 8px;
  font-size: 18px;
}

.rail p { margin: 0 0 10px; font-size: 15px; }

.rail ul { margin: 0; padding-left: 18px; }

.rail li { margin: 0 0 8px; }

.block {
  margin-top: 16px;
}

.block h2,
.prose h2 {
  font-size: 22px;
  line-height: 1.25;
  margin: 0 0 8px;
}

.caption,
.snapline,
figcaption {
  margin: 8px 0 0;
  font-size: 12px;
  line-height: 1.4;
  color: var(--ink-soft);
}

.regime-tools { margin: 8px 0; }

.regime-tools label {
  display: block;
  font-size: 12px;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  margin-bottom: 4px;
}

.table-scroll {
  overflow-x: auto;
  max-width: 100%;
  border-top: 2px solid var(--ink);
}

.regime {
  width: 100%;
  min-width: 680px;
  border-collapse: collapse;
  font-size: 14px;
}

.regime th {
  text-align: left;
  font-size: 11px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 6px 8px;
  border-bottom: 1px solid var(--ink);
}

.regime td {
  padding: 7px 8px;
  border-bottom: 1px solid var(--rule);
  vertical-align: top;
}

.regime tr[hidden] { display: none; }

.mono, .regime td.n {
  font-family: var(--mono);
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
}

.cols {
  display: grid;
  gap: 16px;
  margin-top: 16px;
}

.lead {
  padding: 10px 0 12px;
  border-top: 1px solid var(--ink);
}

.lead h3 {
  margin: 0 0 6px;
  font-size: 20px;
  line-height: 1.25;
}

.lead p { margin: 0; }

.kicker {
  margin: 0 0 4px;
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-soft);
}

.diagram { margin: 14px 0 0; }

.diagram svg {
  width: 100%;
  height: auto;
  display: block;
  background: #e7dcc6;
  border: 1px solid var(--ink);
}

.sheet {
  display: grid;
  gap: 18px;
  margin-top: 16px;
}

.prose h1 {
  margin: 0 0 8px;
  font-size: 32px;
  line-height: 1.12;
  letter-spacing: -0.02em;
}

.deck {
  margin: 0 0 12px;
  font-size: 19px;
  line-height: 1.35;
}

.prose p { margin: 0 0 12px; }

.prose h2 { margin-top: 22px; }

.note {
  background: var(--paper-2);
  border-left: 3px solid var(--ink);
  padding: 8px 12px;
  margin: 0 0 12px;
}

.wrong { border-left-color: #641920; }

.toc {
  margin: 0 0 12px;
  padding: 8px 10px;
  background: var(--paper-2);
  border: 1px solid var(--rule);
}

.toc[hidden] { display: none; }

.toc ol { margin: 6px 0 0; padding-left: 18px; }

.toc li { margin: 0 0 4px; }

#toc-toggle,
.toc-title {
  font-family: var(--sans);
}

#toc-toggle {
  margin: 0 0 8px;
  background: transparent;
  border: 1px solid var(--ink);
  padding: 6px 10px;
  font-size: 13px;
  cursor: pointer;
}

.side {
  display: grid;
  gap: 10px;
  align-content: start;
}

.mini {
  padding: 10px 12px;
  color: #f6f8fb;
}

.mini p { margin: 0; font-family: var(--sans); font-size: 12px; letter-spacing: 0.08em; text-transform: uppercase; }

.mini b {
  display: block;
  margin-top: 4px;
  font-family: var(--mono);
  font-size: 32px;
  font-weight: 620;
  letter-spacing: -0.03em;
  line-height: 1;
}

.mini span { display: block; margin-top: 6px; font-size: 12px; line-height: 1.35; }

.mini.usd { background: var(--usd); box-shadow: inset 0 0 0 1px var(--usd-edge); }

.mini.cny { background: var(--cny); box-shadow: inset 0 0 0 1px var(--cny-edge); }

.side nav {
  display: grid;
  gap: 4px;
  font-family: var(--sans);
  font-size: 14px;
}

.colophon {
  margin-top: 28px;
  padding-top: 14px;
  border-top: 2px solid var(--ink);
}

.disclaimer { margin: 0 0 8px; font-size: 15px; }

.mail, .fine { margin: 0 0 8px; font-size: 14px; }

.network {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 12px;
}

.network a {
  font-size: 13px;
  text-decoration: none;
  border-bottom: 1px solid var(--rule);
}

.network a.is-edition { font-weight: 700; border-bottom-color: var(--ink); }

.status { min-height: 1.2em; font-family: var(--sans); font-size: 13px; margin: 6px 0 0; }

@media (min-width: 960px) {
  body { font-size: 18px; }

  .wrap { padding: 26px 28px 56px; }

  .edition { font-size: 68px; }

  .desk {
    grid-template-columns: 1fr 1fr 300px;
    grid-template-areas:
      "usd cny rail"
      "table table rail"
      "feed feed rail";
    align-items: start;
  }

  .plaque-usd { grid-area: usd; }
  .plaque-cny { grid-area: cny; }
  .rail { grid-area: rail; }
  .regime-block { grid-area: table; }
  .feed { grid-area: feed; }

  .num { font-size: 74px; }

  .cols { grid-template-columns: 1.25fr 0.9fr 0.9fr; }

  .sheet { grid-template-columns: minmax(0, 1fr) 290px; align-items: start; }

  .side { position: sticky; top: 12px; }

  .prose h1 { font-size: 40px; }
}

@media (max-width: 359px) {
  .num { font-size: 44px; }
  .edition { font-size: 36px; }
}