:root {
  --ink: #101114;
  --coral: #ed745f;
  --coral-ink: #b84939;
  --blue: #006b77;
  --blue-deep: #06464d;
  --paper: #f7f5ef;
  --white: #fffefa;
  --cement: #d9dbd8;
  --line: rgba(16, 17, 20, 0.2);
  --muted: #666c6c;
  --shell: min(1440px, calc(100% - 72px));
  --serif: "Songti SC", "STSong", "SimSun", serif;
  --sans: "PingFang SC", "Microsoft YaHei", system-ui, -apple-system, sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 82px;
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  line-height: 1.75;
  text-rendering: optimizeLegibility;
}

img {
  display: block;
  max-width: 100%;
}

button,
a {
  font: inherit;
}

a {
  color: inherit;
}

.skip-link {
  position: fixed;
  left: 20px;
  top: -60px;
  z-index: 1000;
  padding: 10px 16px;
  background: var(--coral);
  color: var(--ink);
  text-decoration: none;
  font-weight: 700;
}

.skip-link:focus {
  top: 12px;
}

.section-shell {
  width: var(--shell);
  margin-inline: auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(247, 245, 239, 0.96);
  border-bottom: 1px solid var(--ink);
  backdrop-filter: blur(12px);
}

.header-inner {
  width: var(--shell);
  min-height: 76px;
  margin-inline: auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 36px;
}

.brand-lockup {
  flex: 0 0 auto;
  display: flex;
  align-items: center;
  gap: 13px;
}

.brand-lockup img {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  object-fit: cover;
}

.brand-lockup span {
  display: grid;
  line-height: 1.1;
}

.brand-lockup b {
  font-family: var(--serif);
  font-size: 22px;
  font-weight: 600;
  letter-spacing: 0.08em;
}

.brand-lockup small {
  margin-top: 5px;
  color: var(--blue);
  font-size: 9px;
  font-weight: 700;
  letter-spacing: 0.16em;
}

.primary-nav {
  display: flex;
  align-items: stretch;
  align-self: stretch;
}

.primary-nav a {
  position: relative;
  display: grid;
  place-items: center;
  padding: 0 18px;
  text-decoration: none;
  color: #444849;
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.04em;
}

.primary-nav a::after {
  content: "";
  position: absolute;
  left: 18px;
  right: 18px;
  bottom: 0;
  height: 4px;
  background: var(--coral);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 180ms ease;
}

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

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

.primary-nav a:focus-visible,
.nav-toggle:focus-visible,
summary:focus-visible {
  outline: 3px solid var(--coral);
  outline-offset: 3px;
}

.nav-toggle {
  display: none;
}

.annual-cover {
  min-height: calc(100vh - 76px);
  background: var(--ink);
  color: var(--white);
  overflow: hidden;
}

.cover-kicker,
.cover-wordmark,
.cover-body {
  width: var(--shell);
  margin-inline: auto;
}

.cover-kicker {
  height: 94px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid rgba(255, 255, 255, 0.24);
  color: #c8cbca;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.22em;
}

.cover-kicker time {
  color: var(--coral);
  font-family: var(--serif);
  font-size: clamp(30px, 4vw, 62px);
  font-weight: 400;
  letter-spacing: 0;
  line-height: 1;
}

.cover-wordmark {
  padding: 48px 0 58px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.24);
}

.cover-wordmark p {
  margin: 0 0 18px;
  color: #8fc5c7;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.25em;
}

.cover-wordmark h1 {
  max-width: 1280px;
  margin: 0;
  font-family: var(--serif);
  font-size: clamp(52px, 7.4vw, 122px);
  font-weight: 400;
  letter-spacing: -0.045em;
  line-height: 0.99;
}

.cover-body {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(270px, 31%);
  gap: 0;
}

.cover-intro {
  padding: 58px 64px 64px 0;
}

.lead {
  max-width: 850px;
  margin: 0 0 60px;
  color: #e6e7e2;
  font-family: var(--serif);
  font-size: clamp(25px, 3vw, 44px);
  line-height: 1.5;
}

.summary-columns {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border-top: 1px solid rgba(255, 255, 255, 0.24);
}

.summary-columns article {
  min-height: 230px;
  padding: 25px 28px 0 0;
}

.summary-columns article + article {
  padding-left: 28px;
  border-left: 1px solid rgba(255, 255, 255, 0.24);
}

.summary-columns span {
  color: var(--coral);
  font-size: 10px;
  font-weight: 800;
  letter-spacing: 0.18em;
}

.section-title > span,
.archive-heading > span {
  color: var(--coral-ink);
  font-size: 10px;
  font-weight: 800;
  letter-spacing: 0.18em;
}

.summary-columns h2 {
  margin: 20px 0 12px;
  font-family: var(--serif);
  font-size: 25px;
  font-weight: 500;
}

.summary-columns p {
  margin: 0;
  color: #aeb3b1;
  font-size: 14px;
}

.cover-visual {
  position: relative;
  min-height: 540px;
  margin: 0;
  border-left: 1px solid rgba(255, 255, 255, 0.24);
  overflow: hidden;
}

.cover-visual::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 55%, rgba(0, 107, 119, 0.38));
  pointer-events: none;
}

.cover-visual img {
  width: 100%;
  height: 100%;
  min-height: 540px;
  object-fit: cover;
  filter: saturate(0.72) contrast(1.04);
}

.official-scope {
  padding: 130px 0;
}

.scope-layout {
  display: grid;
  grid-template-columns: 0.82fr 1.65fr 0.72fr;
  gap: clamp(32px, 5vw, 86px);
  align-items: start;
}

.section-title h2,
.archive-heading h2 {
  margin: 20px 0 0;
  font-family: var(--serif);
  font-size: clamp(38px, 4.5vw, 70px);
  font-weight: 400;
  letter-spacing: -0.035em;
  line-height: 1.15;
}

.section-title > p {
  max-width: 720px;
  margin: 24px 0 0;
  color: var(--muted);
}

.scope-statement {
  padding-left: 36px;
  border-left: 1px solid var(--ink);
}

.scope-statement p {
  margin: 0 0 22px;
  color: #555b5b;
  font-size: 16px;
}

.scope-statement .scope-lead {
  margin-bottom: 30px;
  color: var(--ink);
  font-family: var(--serif);
  font-size: clamp(26px, 3vw, 42px);
  line-height: 1.5;
}

.scope-notes {
  border-top: 5px solid var(--blue);
}

.scope-notes p {
  margin: 0;
  padding: 20px 0;
  display: grid;
  border-bottom: 1px solid var(--line);
}

.scope-notes b {
  font-size: 15px;
}

.scope-notes span {
  color: var(--muted);
  font-size: 12px;
}

.coordinates {
  padding: 130px 0 150px;
  background: var(--blue-deep);
  color: var(--white);
}

.section-title.inverse > span {
  color: #ffad9b;
}

.section-title.inverse > p {
  color: #a7c0c0;
}

.coordinate-stage {
  position: relative;
  min-height: 720px;
  margin-top: 72px;
  border: 1px solid rgba(255, 255, 255, 0.28);
  background-image: linear-gradient(rgba(255,255,255,.045) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.045) 1px, transparent 1px);
  background-size: 80px 80px;
}

.coordinate-axis {
  position: absolute;
  background: rgba(255, 255, 255, 0.25);
}

.axis-x {
  left: 0;
  right: 0;
  top: 50%;
  height: 1px;
}

.axis-y {
  top: 0;
  bottom: 0;
  left: 50%;
  width: 1px;
}

.coordinate-core {
  position: absolute;
  left: 50%;
  top: 50%;
  width: 220px;
  height: 220px;
  border: 1px solid var(--coral);
  border-radius: 50%;
  transform: translate(-50%, -50%);
  display: grid;
  place-content: center;
  text-align: center;
  background: var(--blue-deep);
}

.coordinate-core::before,
.coordinate-core::after {
  content: "";
  position: absolute;
  inset: 18px;
  border: 1px solid rgba(237, 116, 95, 0.32);
  border-radius: 50%;
}

.coordinate-core::after {
  inset: -24px;
  border-color: rgba(255, 255, 255, 0.13);
}

.coordinate-core span,
.coordinate-core small {
  color: #a8c3c4;
  font-size: 9px;
  letter-spacing: 0.18em;
}

.coordinate-core b {
  margin: 6px 0;
  font-family: var(--serif);
  font-size: 26px;
  font-weight: 500;
}

.coordinate-point {
  position: absolute;
  width: min(290px, 30%);
  padding: 22px 24px;
  background: rgba(6, 70, 77, 0.88);
  border-top: 3px solid var(--coral);
}

.coordinate-point > span {
  float: right;
  color: #81a9aa;
  font-family: var(--serif);
  font-size: 46px;
  line-height: 1;
}

.coordinate-point h3 {
  margin: 0 0 12px;
  font-family: var(--serif);
  font-size: 25px;
  font-weight: 500;
}

.coordinate-point p {
  margin: 0;
  color: #aac0c0;
  font-size: 13px;
}

.point-a { left: 7%; top: 9%; }
.point-b { right: 7%; top: 9%; }
.point-c { left: 7%; bottom: 9%; }
.point-d { right: 7%; bottom: 9%; }

.visual-themes {
  padding: 138px 0;
  background: var(--white);
}

.visual-themes .section-title {
  display: grid;
  grid-template-columns: 0.75fr 1.25fr;
  align-items: end;
  column-gap: 56px;
}

.visual-themes .section-title > span {
  grid-column: 1 / -1;
}

.visual-themes .section-title > p {
  margin-bottom: 8px;
}

.theme-spread {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  grid-auto-rows: minmax(90px, auto);
  gap: 22px;
  margin-top: 76px;
}

.theme-photo {
  margin: 0;
  overflow: hidden;
}

.theme-photo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 500ms ease;
}

.theme-photo:hover img {
  transform: scale(1.025);
}

.photo-primary {
  grid-column: 1 / 8;
  grid-row: 1 / 5;
  aspect-ratio: 16 / 10;
}

.photo-secondary {
  grid-column: 8 / 13;
  grid-row: 4 / 8;
  aspect-ratio: 3 / 2;
}

.theme-story {
  padding: 28px 30px;
  border: 1px solid var(--line);
}

.theme-story span {
  color: var(--coral-ink);
  font-size: 10px;
  font-weight: 800;
  letter-spacing: 0.16em;
}

.theme-story h3 {
  margin: 18px 0 14px;
  font-family: var(--serif);
  font-size: clamp(24px, 2.3vw, 36px);
  font-weight: 500;
  line-height: 1.25;
}

.theme-story p {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
}

.story-one {
  grid-column: 8 / 13;
  grid-row: 1 / 4;
  background: var(--paper);
}

.story-two {
  grid-column: 1 / 5;
  grid-row: 5 / 8;
}

.story-three {
  grid-column: 5 / 8;
  grid-row: 5 / 8;
  background: var(--coral);
  border-color: var(--coral);
}

.story-three span,
.story-three p {
  color: #53271f;
}

.classification {
  padding: 120px 0;
  background: var(--cement);
}

.section-title.compact {
  max-width: 820px;
}

.classification-list {
  margin-top: 70px;
  border-top: 1px solid var(--ink);
}

.classification-list article {
  display: grid;
  grid-template-columns: 70px 1fr 1.2fr 0.9fr;
  gap: 30px;
  align-items: center;
  min-height: 118px;
  border-bottom: 1px solid rgba(16, 17, 20, 0.55);
  transition: background 160ms ease, padding 160ms ease;
}

.classification-list article:hover {
  padding-inline: 20px;
  background: rgba(255, 254, 250, 0.52);
}

.classification-list span {
  color: var(--blue);
  font-family: var(--serif);
  font-size: 34px;
}

.classification-list h3 {
  margin: 0;
  font-family: var(--serif);
  font-size: 30px;
  font-weight: 500;
}

.classification-list p {
  margin: 0;
  color: #4f5555;
}

.classification-list b {
  color: var(--blue-deep);
  font-size: 12px;
  letter-spacing: 0.05em;
}

.bulletin {
  padding: 130px 0;
  background: var(--coral);
}

.bulletin-sheet {
  border-top: 8px solid var(--ink);
  border-bottom: 1px solid var(--ink);
}

.bulletin-masthead {
  display: grid;
  grid-template-columns: 0.6fr 1.5fr auto;
  gap: 36px;
  align-items: end;
  padding: 34px 0 38px;
  border-bottom: 3px double var(--ink);
}

.bulletin-masthead span,
.bulletin-masthead time {
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.16em;
}

.bulletin-masthead h2 {
  margin: 0;
  font-family: var(--serif);
  font-size: clamp(40px, 5vw, 78px);
  font-weight: 500;
  letter-spacing: -0.04em;
  line-height: 1;
}

.bulletin-lead {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 26px;
  max-width: 980px;
  margin: 58px auto;
}

.drop-cap {
  margin: 0;
  font-family: var(--serif);
  font-size: 120px;
  line-height: 0.8;
}

.bulletin-lead h3 {
  margin: 0 0 12px;
  font-family: var(--serif);
  font-size: clamp(30px, 3.6vw, 50px);
  font-weight: 500;
}

.bulletin-lead p:not(.drop-cap) {
  margin: 0;
  font-size: 16px;
}

.bulletin-briefs {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border-top: 1px solid var(--ink);
}

.bulletin-briefs article {
  padding: 34px 30px 42px 0;
}

.bulletin-briefs article + article {
  padding-left: 30px;
  border-left: 1px solid var(--ink);
}

.bulletin-briefs span {
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.12em;
}

.bulletin-briefs h3 {
  margin: 14px 0 12px;
  font-family: var(--serif);
  font-size: 24px;
}

.bulletin-briefs p {
  margin: 0;
  color: #542920;
  font-size: 13px;
}

.access-manual {
  padding: 135px 0;
  background: var(--ink);
  color: var(--white);
}

.manual-steps {
  margin: 76px 0 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid rgba(255, 255, 255, 0.34);
}

.manual-steps li {
  display: grid;
  grid-template-columns: 90px 1fr 230px;
  gap: 44px;
  align-items: center;
  min-height: 170px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.34);
}

.manual-steps li > span {
  color: var(--coral);
  font-family: var(--serif);
  font-size: 42px;
}

.manual-steps h3 {
  margin: 0 0 10px;
  font-family: var(--serif);
  font-size: 29px;
  font-weight: 500;
}

.manual-steps p {
  max-width: 720px;
  margin: 0;
  color: #aeb4b2;
  font-size: 14px;
}

.manual-steps li > b {
  padding-left: 20px;
  border-left: 1px solid rgba(255, 255, 255, 0.24);
  color: #8ec2c5;
  font-size: 12px;
  letter-spacing: 0.08em;
}

.faq {
  padding: 135px 0;
  background: var(--white);
}

.faq-layout {
  display: grid;
  grid-template-columns: 0.72fr 1.28fr;
  gap: clamp(50px, 8vw, 130px);
  align-items: start;
}

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

.faq-list details {
  border-bottom: 1px solid var(--line);
}

.faq-list summary {
  position: relative;
  cursor: pointer;
  list-style: none;
  padding: 26px 54px 26px 0;
  font-family: var(--serif);
  font-size: 22px;
}

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

.faq-list summary::after {
  content: "+";
  position: absolute;
  right: 5px;
  top: 21px;
  color: var(--coral);
  font-family: var(--sans);
  font-size: 28px;
  font-weight: 300;
}

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

.faq-list details p {
  margin: -4px 60px 26px 0;
  color: var(--muted);
}

.source-principles {
  padding: 110px 0;
  background: var(--blue-deep);
  color: var(--white);
}

.principles-grid {
  display: grid;
  grid-template-columns: 1.1fr repeat(3, 0.9fr);
  gap: 0;
  border-top: 1px solid rgba(255, 255, 255, 0.3);
  border-bottom: 1px solid rgba(255, 255, 255, 0.3);
}

.principles-grid > * {
  min-height: 290px;
  padding: 34px 30px;
}

.principles-grid > * + * {
  border-left: 1px solid rgba(255, 255, 255, 0.3);
}

.principle > span {
  color: var(--coral);
  font-family: var(--serif);
  font-size: 38px;
}

.principle h3 {
  margin: 28px 0 12px;
  font-family: var(--serif);
  font-size: 25px;
  font-weight: 500;
}

.principle p {
  margin: 0;
  color: #a7c0c0;
  font-size: 13px;
}

.brand-archive {
  padding: 140px 0;
  background: var(--paper);
}

.archive-layout {
  display: grid;
  grid-template-columns: 0.72fr 1.28fr;
  gap: clamp(50px, 8vw, 140px);
}

.archive-heading p {
  max-width: 480px;
  margin: 28px 0 0;
  color: var(--muted);
}

.archive-data {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  margin: 0;
  border-top: 5px solid var(--blue);
}

.archive-data div {
  min-height: 130px;
  padding: 24px;
  border-bottom: 1px solid var(--line);
}

.archive-data div:nth-child(odd):not(.wide) {
  border-right: 1px solid var(--line);
}

.archive-data .wide {
  grid-column: 1 / -1;
  display: grid;
  grid-template-columns: 160px 1fr;
  align-items: start;
}

.archive-data dt {
  color: var(--coral-ink);
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.12em;
}

.archive-data dd {
  margin: 12px 0 0;
  font-family: var(--serif);
  font-size: 21px;
  line-height: 1.5;
}

.archive-data .wide dd {
  margin-top: -3px;
}

.site-footer {
  padding: 54px 0 42px;
  background: var(--ink);
  color: var(--white);
}

.footer-inner {
  width: var(--shell);
  margin-inline: auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 36px 80px;
  align-items: start;
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 18px;
}

.footer-brand img {
  width: 58px;
  height: 58px;
  border-radius: 50%;
}

.footer-brand div {
  display: grid;
}

.footer-brand b {
  font-family: var(--serif);
  font-size: 24px;
  font-weight: 500;
}

.footer-brand span {
  color: #9ea4a2;
  font-size: 11px;
  letter-spacing: 0.08em;
}

.footer-info {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 8px 28px;
}

.footer-info p {
  margin: 0;
  color: #c4c8c6;
  font-size: 13px;
}

.footer-inner > small {
  grid-column: 1 / -1;
  padding-top: 24px;
  border-top: 1px solid rgba(255, 255, 255, 0.18);
  color: #848a88;
}

@media (max-width: 1120px) {
  :root {
    --shell: min(100% - 48px, 1080px);
  }

  .primary-nav a {
    padding-inline: 11px;
    font-size: 13px;
  }

  .cover-body {
    grid-template-columns: 1fr 300px;
  }

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

  .summary-columns article {
    min-height: auto;
    padding: 22px 20px 22px 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.18);
  }

  .summary-columns article + article {
    padding-left: 0;
    border-left: 0;
  }

  .scope-layout {
    grid-template-columns: 0.7fr 1.3fr;
  }

  .scope-notes {
    grid-column: 2;
  }

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

  .principles-grid .section-title {
    grid-column: 1 / -1;
    min-height: auto;
    border-bottom: 1px solid rgba(255, 255, 255, 0.3);
  }

  .principles-grid > :nth-child(2) {
    border-left: 0;
  }
}

@media (max-width: 820px) {
  :root {
    --shell: calc(100% - 36px);
  }

  html {
    scroll-padding-top: 70px;
  }

  .header-inner {
    min-height: 68px;
  }

  .nav-toggle {
    width: 52px;
    height: 42px;
    display: grid;
    align-content: center;
    gap: 5px;
    padding: 7px 10px;
    background: transparent;
    border: 1px solid var(--ink);
    cursor: pointer;
  }

  .nav-toggle span {
    display: block;
    height: 1px;
    background: var(--ink);
  }

  .nav-toggle b {
    position: absolute;
    width: 1px;
    height: 1px;
    overflow: hidden;
    clip-path: inset(50%);
  }

  .primary-nav {
    position: absolute;
    left: 0;
    right: 0;
    top: 68px;
    display: none;
    padding: 10px 18px 20px;
    background: var(--paper);
    border-bottom: 1px solid var(--ink);
  }

  .primary-nav.open {
    display: grid;
  }

  .primary-nav a {
    min-height: 48px;
    justify-content: start;
    border-bottom: 1px solid var(--line);
  }

  .primary-nav a::after {
    left: 0;
    right: auto;
    width: 4px;
    height: 100%;
  }

  .cover-kicker {
    height: 70px;
  }

  .cover-wordmark {
    padding: 38px 0 42px;
  }

  .cover-wordmark h1 {
    font-size: clamp(43px, 12vw, 78px);
  }

  .cover-body {
    grid-template-columns: 1fr;
  }

  .cover-intro {
    padding: 44px 0 36px;
  }

  .lead {
    margin-bottom: 38px;
  }

  .cover-visual {
    min-height: 400px;
    border-top: 1px solid rgba(255, 255, 255, 0.24);
    border-left: 0;
  }

  .cover-visual img {
    min-height: 400px;
    max-height: 620px;
  }

  .official-scope,
  .coordinates,
  .visual-themes,
  .classification,
  .bulletin,
  .access-manual,
  .faq,
  .brand-archive {
    padding-block: 90px;
  }

  .scope-layout,
  .faq-layout,
  .archive-layout {
    grid-template-columns: 1fr;
  }

  .scope-statement {
    padding-left: 24px;
  }

  .scope-notes {
    grid-column: 1;
  }

  .coordinate-stage {
    min-height: auto;
    padding: 28px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 18px;
    background-size: 48px 48px;
  }

  .coordinate-axis,
  .coordinate-core {
    display: none;
  }

  .coordinate-point {
    position: static;
    width: auto;
  }

  .visual-themes .section-title {
    display: block;
  }

  .theme-spread {
    grid-template-columns: 1fr 1fr;
    grid-auto-rows: auto;
  }

  .photo-primary,
  .photo-secondary,
  .story-one,
  .story-two,
  .story-three {
    grid-column: auto;
    grid-row: auto;
  }

  .photo-primary {
    grid-column: 1 / -1;
  }

  .classification-list article {
    grid-template-columns: 55px 0.75fr 1.25fr;
    gap: 18px;
    padding-block: 20px;
  }

  .classification-list b {
    grid-column: 2 / -1;
  }

  .bulletin-masthead {
    grid-template-columns: 1fr auto;
  }

  .bulletin-masthead h2 {
    grid-column: 1 / -1;
    grid-row: 2;
  }

  .bulletin-briefs {
    grid-template-columns: 1fr;
  }

  .bulletin-briefs article + article {
    padding-left: 0;
    border-left: 0;
    border-top: 1px solid var(--ink);
  }

  .manual-steps li {
    grid-template-columns: 64px 1fr;
    gap: 24px;
    padding-block: 26px;
  }

  .manual-steps li > b {
    grid-column: 2;
    padding: 0;
    border: 0;
  }

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

  .principles-grid > * {
    min-height: auto;
  }

  .principles-grid > * + * {
    border-top: 1px solid rgba(255, 255, 255, 0.3);
    border-left: 0;
  }

  .archive-data {
    grid-template-columns: 1fr;
  }

  .archive-data div:nth-child(odd):not(.wide) {
    border-right: 0;
  }

  .archive-data .wide {
    grid-column: 1;
    grid-template-columns: 1fr;
  }

  .archive-data .wide dd {
    margin-top: 12px;
  }

  .footer-inner {
    grid-template-columns: 1fr;
  }

  .footer-info {
    grid-template-columns: 1fr;
  }

  .footer-inner > small {
    grid-column: 1;
  }
}

@media (max-width: 540px) {
  :root {
    --shell: calc(100% - 28px);
  }

  .brand-lockup small {
    display: none;
  }

  .cover-kicker span {
    max-width: 180px;
    line-height: 1.4;
  }

  .cover-wordmark h1 {
    font-size: clamp(38px, 11.5vw, 58px);
    line-height: 1.08;
  }

  .summary-columns h2 {
    font-size: 22px;
  }

  .section-title h2,
  .archive-heading h2 {
    font-size: 37px;
  }

  .coordinate-stage,
  .theme-spread {
    grid-template-columns: 1fr;
  }

  .photo-primary {
    grid-column: auto;
  }

  .theme-story {
    padding: 25px 22px;
  }

  .classification-list article {
    grid-template-columns: 42px 1fr;
    gap: 10px 18px;
  }

  .classification-list p,
  .classification-list b {
    grid-column: 2;
  }

  .bulletin-lead {
    grid-template-columns: 1fr;
  }

  .drop-cap {
    font-size: 80px;
  }

  .manual-steps li {
    grid-template-columns: 1fr;
  }

  .manual-steps li > b {
    grid-column: 1;
  }

  .manual-steps li > span {
    font-size: 34px;
  }
}

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

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