:root {
  color-scheme: light;
  --paper: #f4f4f2;
  --ink: #080808;
  --graphite: #3f3f3c;
  --muted: #777773;
  --line: #b9b9b4;
  --white: #ffffff;
  --page: 1180px;
  font-family: "Microsoft YaHei UI", "PingFang SC", "Noto Sans CJK SC", sans-serif;
  background: var(--paper);
  color: var(--ink);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background:
    linear-gradient(90deg, transparent 0 49.94%, rgba(8, 8, 8, 0.045) 49.94% 50.06%, transparent 50.06%),
    var(--paper);
}

a {
  color: inherit;
  text-decoration-thickness: 1px;
  text-underline-offset: 0.24em;
}

a:focus-visible {
  outline: 2px solid var(--ink);
  outline-offset: 4px;
}

.nowrap {
  white-space: nowrap;
}

.brief-shell {
  width: min(calc(100% - 40px), var(--page));
  margin: 0 auto;
  padding-bottom: 48px;
}

.masthead {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 86px;
  border-bottom: 2px solid var(--ink);
}

.brand {
  font-size: 1.05rem;
  font-weight: 800;
  text-decoration: none;
  letter-spacing: -0.04em;
}

.issue-meta {
  display: flex;
  gap: 28px;
  color: var(--graphite);
  font-size: 0.78rem;
  font-variant-numeric: tabular-nums;
}

.lead {
  display: grid;
  grid-template-columns: 1.02fr 1.38fr;
  gap: 0 72px;
  padding: 70px 0 58px;
  border-bottom: 1px solid var(--line);
}

.lead-heading {
  align-self: start;
}

.source-line {
  margin: 0 0 22px;
  color: var(--graphite);
  font-size: 0.78rem;
}

h1,
h2,
h3,
p,
figure,
blockquote,
dl,
dd {
  margin-top: 0;
}

h1 {
  max-width: 9em;
  margin-bottom: 0;
  font-size: clamp(3.15rem, 6.4vw, 6.15rem);
  font-weight: 900;
  line-height: 0.96;
  letter-spacing: -0.075em;
}

.source-quote {
  position: relative;
  margin: 0;
  padding: 0 0 38px 40px;
  border-left: 10px solid var(--ink);
}

.source-quote blockquote {
  max-width: 18em;
  margin-bottom: 36px;
  font-size: clamp(1.65rem, 3.2vw, 3.05rem);
  font-weight: 700;
  line-height: 1.17;
  letter-spacing: -0.045em;
}

.source-quote figcaption {
  display: grid;
  grid-template-columns: 92px 1fr;
  gap: 20px;
  color: var(--graphite);
  font-size: 0.92rem;
  line-height: 1.7;
}

.source-quote figcaption strong {
  color: var(--ink);
}

.lead-context {
  grid-column: 2;
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 32px;
  padding-top: 30px;
  border-top: 1px solid var(--line);
}

.lead-context p {
  max-width: 43em;
  margin-bottom: 0;
  color: var(--graphite);
  font-size: 0.92rem;
  line-height: 1.75;
}

.lead-context a,
.dispatch a {
  flex: none;
  font-size: 0.78rem;
  font-weight: 700;
}

.signals,
.dispatches {
  padding: 58px 0 64px;
  border-bottom: 1px solid var(--line);
}

.section-label {
  display: grid;
  grid-template-columns: 1fr 1.38fr;
  gap: 72px;
  align-items: end;
  margin-bottom: 28px;
}

.section-label h2,
.availability h2 {
  margin-bottom: 0;
  font-size: clamp(1.55rem, 2.5vw, 2.25rem);
  line-height: 1.1;
  letter-spacing: -0.045em;
}

.section-label p {
  margin-bottom: 0;
  color: var(--muted);
  font-size: 0.8rem;
}

.signal-list {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border-top: 2px solid var(--ink);
  border-bottom: 2px solid var(--ink);
}

.signal {
  min-height: 282px;
  padding: 30px 28px 32px;
}

.signal + .signal {
  border-left: 1px solid var(--line);
}

.signal-value {
  margin-bottom: 68px;
  font-size: clamp(2.2rem, 4vw, 4rem);
  font-weight: 900;
  line-height: 1;
  letter-spacing: -0.065em;
  font-variant-numeric: tabular-nums;
}

.signal h3 {
  margin-bottom: 10px;
  font-size: 1rem;
}

.signal p:last-child {
  margin-bottom: 0;
  color: var(--graphite);
  font-size: 0.84rem;
  line-height: 1.65;
}

.availability {
  display: grid;
  grid-template-columns: 1fr 2.45fr;
  gap: 72px;
  padding: 48px 0;
  color: var(--white);
  background: var(--ink);
  box-shadow: 40px 0 0 var(--ink), -40px 0 0 var(--ink);
}

.availability-grid {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 54px;
}

.availability-grid > p {
  margin-bottom: 0;
  color: #d2d2cf;
  font-size: 0.92rem;
  line-height: 1.8;
}

.availability dl {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 26px;
  margin-bottom: 0;
}

.availability dl div {
  padding-top: 12px;
  border-top: 1px solid #5f5f5c;
}

.availability dt {
  color: #a8a8a4;
  font-size: 0.72rem;
}

.availability dd {
  margin: 16px 0 0;
  font-size: 1rem;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
}

.dispatch-list {
  border-top: 2px solid var(--ink);
}

.dispatch {
  display: grid;
  grid-template-columns: 1fr 2.45fr;
  gap: 72px;
  padding: 32px 0 36px;
  border-bottom: 1px solid var(--line);
}

.dispatch-meta {
  display: flex;
  justify-content: space-between;
  align-items: start;
  gap: 20px;
  color: var(--graphite);
  font-size: 0.78rem;
  font-variant-numeric: tabular-nums;
}

.dispatch h3 {
  margin-bottom: 12px;
  font-size: clamp(1.25rem, 2.4vw, 2rem);
  line-height: 1.2;
  letter-spacing: -0.04em;
}

.dispatch p {
  max-width: 47em;
  margin-bottom: 20px;
  color: var(--graphite);
  font-size: 0.88rem;
  line-height: 1.75;
}

.footer {
  display: flex;
  justify-content: space-between;
  gap: 48px;
  padding: 32px 0 0;
  color: var(--muted);
  font-size: 0.75rem;
  line-height: 1.7;
}

.footer p {
  max-width: 56em;
  margin-bottom: 0;
}

.footer a {
  color: var(--ink);
  font-weight: 700;
}

@media (max-width: 820px) {
  body {
    background: var(--paper);
  }

  .brief-shell {
    width: min(calc(100% - 32px), var(--page));
  }

  .lead,
  .section-label,
  .availability,
  .availability-grid,
  .dispatch {
    grid-template-columns: 1fr;
  }

  .lead {
    gap: 42px;
    padding: 46px 0;
  }

  h1 {
    max-width: 8em;
  }

  .source-quote {
    padding-left: 24px;
    border-left-width: 7px;
  }

  .lead-context {
    grid-column: 1;
  }

  .section-label,
  .availability,
  .availability-grid,
  .dispatch {
    gap: 24px;
  }

  .signal-list {
    grid-template-columns: 1fr;
  }

  .signal {
    min-height: auto;
  }

  .signal + .signal {
    border-top: 1px solid var(--line);
    border-left: 0;
  }

  .signal-value {
    margin-bottom: 38px;
  }

  .availability {
    box-shadow: 16px 0 0 var(--ink), -16px 0 0 var(--ink);
  }

  .dispatch-meta {
    justify-content: flex-start;
  }
}

@media (max-width: 520px) {
  .masthead {
    align-items: flex-start;
    padding: 22px 0;
  }

  .issue-meta {
    flex-direction: column;
    gap: 4px;
    text-align: right;
  }

  h1 {
    font-size: 2.72rem;
    line-height: 0.98;
  }

  .source-quote figcaption,
  .availability dl {
    grid-template-columns: 1fr;
  }

  .lead-context,
  .footer {
    align-items: flex-start;
    flex-direction: column;
  }

  .lead-context {
    display: flex;
  }
}

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