:root,
[data-theme="light"] {
  --paper: #f2efe7;
  --paper-raised: #faf8f2;
  --paper-deep: #e9e4d9;
  --ink: #171613;
  --ink-soft: #4f4b43;
  --ink-muted: #706b61;
  --line: #d8d1c4;
  --line-strong: #a49b89;
  --brass: #80622f;
  --brass-bright: #b28a43;
  --header-bg: rgba(242, 239, 231, 0.92);
  --shadow: rgba(35, 30, 20, 0.08);
  --on-dark: #f5f0e5;
  --plot-hatch: rgba(122, 110, 88, 0.14);
  --serif: "Noto Serif SC", "Source Han Serif SC", "Songti SC", STSong, SimSun, serif;
  --sans: "Noto Sans SC", "Source Han Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  --ui-sans: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  --latin: "Bodoni 72", Didot, "Times New Roman", serif;
  --mono: "JetBrains Mono", "SFMono-Regular", Consolas, monospace;
  --shell: min(1240px, calc(100vw - 64px));
}

[data-theme="dark"] {
  --paper: #12110e;
  --paper-raised: #1a1814;
  --paper-deep: #211e18;
  --ink: #eee9dd;
  --ink-soft: #c2baa9;
  --ink-muted: #978f7f;
  --line: #343028;
  --line-strong: #625a48;
  --brass: #c19b55;
  --brass-bright: #d5b56f;
  --header-bg: rgba(18, 17, 14, 0.92);
  --shadow: rgba(0, 0, 0, 0.28);
  --on-dark: #f4eee1;
  --plot-hatch: rgba(255, 255, 255, 0.05);
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  background: var(--paper);
  color: var(--ink);
  scroll-behavior: smooth;
  scrollbar-gutter: stable;
}

body {
  min-height: 100vh;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 15px;
  line-height: 1.75;
  text-rendering: optimizeLegibility;
}

body:not([data-page="reader"])::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: 20;
  pointer-events: none;
  opacity: 0.16;
  background-image: radial-gradient(rgba(74, 66, 53, 0.16) 0.45px, transparent 0.55px);
  background-size: 5px 5px;
  mix-blend-mode: multiply;
}

[data-theme="dark"] body:not([data-page="reader"])::before {
  opacity: 0.1;
  mix-blend-mode: screen;
}

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

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

button,
a,
[role="button"] {
  -webkit-tap-highlight-color: transparent;
}

svg {
  display: block;
  fill: none;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 1.75;
}

::selection {
  background: var(--brass);
  color: #fff;
}

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

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

.skip-link {
  position: fixed;
  top: 8px;
  left: 8px;
  z-index: 1000;
  padding: 9px 14px;
  background: var(--ink);
  color: var(--paper);
  transform: translateY(-140%);
}

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

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  min-height: 66px;
  border-bottom: 1px solid var(--line);
  background: var(--header-bg);
  backdrop-filter: blur(14px);
}

.site-header-inner {
  width: var(--shell);
  min-height: 66px;
  margin-inline: auto;
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 32px;
}

.wordmark {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  font-family: var(--serif);
  font-size: 23px;
  font-weight: 700;
  letter-spacing: 0.22em;
  white-space: nowrap;
}

.wordmark i {
  width: 6px;
  height: 6px;
  margin-right: 2px;
  border-radius: 50%;
  background: var(--brass);
}

.field-nav {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: clamp(18px, 2.2vw, 36px);
  font-family: var(--ui-sans);
  font-size: 15px;
  font-weight: 500;
  letter-spacing: 0.035em;
  line-height: 1;
  white-space: nowrap;
}

.field-tab {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding-block: 22px 20px;
  border: 0;
  background: transparent;
  color: var(--ink-soft);
  font: inherit;
  letter-spacing: inherit;
  white-space: inherit;
  cursor: pointer;
  transition: color 180ms ease;
}

.field-tab-short {
  display: none;
}

.field-tab-caret {
  width: 13px;
  height: 13px;
  opacity: 0.5;
  transition: transform 200ms ease;
}

.field-tab::after {
  content: "";
  position: absolute;
  right: 0;
  bottom: -1px;
  left: 0;
  height: 1px;
  background: var(--brass);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 200ms ease-out;
}

.field-tab:hover,
.field-tab.is-open,
.field-tab[data-active="true"] {
  color: var(--ink);
}

.field-tab:hover::after,
.field-tab.is-open::after,
.field-tab[data-active="true"]::after {
  transform: scaleX(1);
}

.field-tab.is-open .field-tab-caret {
  transform: rotate(180deg);
}

/* 面板挂在 sticky 的 header 上，跟着一起吸顶；未展开时不拦截点击。 */
.field-panels {
  position: absolute;
  top: 100%;
  left: 0;
  width: 100%;
  pointer-events: none;
}

.field-panel {
  pointer-events: auto;
  border-bottom: 1px solid var(--line);
  /* 实底而不是半透明加 backdrop-filter：面板压在正文上，滚动时半透明会让
     底下的字透上来闪，而且 header 已经有一层 backdrop-filter，不必再叠一层。 */
  background: var(--paper-raised);
  box-shadow: 0 22px 40px -32px var(--shadow);
  animation: field-panel-in 180ms ease-out;
}

.field-panel[hidden] {
  display: none;
}

@keyframes field-panel-in {
  from { opacity: 0; transform: translateY(-7px); }
  to { opacity: 1; transform: translateY(0); }
}

.field-panel-inner {
  width: var(--shell);
  margin-inline: auto;
  display: grid;
  grid-template-columns: 244px minmax(0, 1fr);
  gap: clamp(26px, 3.6vw, 58px);
  padding-block: 28px 34px;
}

.field-panel-id {
  position: relative;
  padding-right: clamp(18px, 2vw, 30px);
  border-right: 1px solid var(--line);
}

.field-panel-en {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--brass);
}

.field-panel-id h2 {
  margin-top: 9px;
  font-family: var(--serif);
  font-size: 23px;
  font-weight: 600;
  line-height: 1.35;
  letter-spacing: 0.02em;
  /* 「AI 行业场景拆解实验田」在 244px 的侧栏里必然折行，balance 让断点落在词组之间 */
  text-wrap: balance;
}

.field-panel-cadence {
  margin-top: 7px;
  font-size: 13px;
  color: var(--ink-muted);
}

.field-panel-stat {
  margin-top: 18px;
  padding-top: 14px;
  border-top: 1px solid var(--line);
  font-family: var(--mono);
  font-size: 11.5px;
  letter-spacing: 0.03em;
  color: var(--ink-soft);
}

.field-panel-enter {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  margin-top: 13px;
  font-size: 13px;
  color: var(--ink-soft);
  transition: color 180ms ease;
}

.field-panel-enter svg {
  width: 14px;
  height: 14px;
}

.field-panel-enter:hover {
  color: var(--brass);
}

.field-panel-close {
  position: absolute;
  top: -4px;
  right: 8px;
  display: none;
  width: 34px;
  height: 34px;
  place-items: center;
  border: 1px solid var(--line);
  border-radius: 50%;
  background: transparent;
  color: var(--ink-soft);
  cursor: pointer;
}

.field-panel-close svg {
  width: 15px;
  height: 15px;
}

.field-panel-columns {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(206px, 1fr));
  gap: clamp(20px, 2.4vw, 40px);
}

.field-column {
  min-width: 0;
}

.field-column-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 10px;
  padding-bottom: 9px;
  border-bottom: 1px solid var(--line);
}

.field-column-head h3 {
  font-family: var(--serif);
  font-size: 17px;
  font-weight: 600;
  color: var(--ink);
  transition: color 160ms ease;
}

.field-column-head span {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--ink-muted);
  white-space: nowrap;
}

a.field-column-head:hover h3 {
  color: var(--brass);
}

.series-list {
  margin-top: 9px;
  list-style: none;
}

.series-list a {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto auto;
  align-items: baseline;
  gap: 9px;
  padding-block: 6px;
  font-size: 13.5px;
  color: var(--ink-soft);
  transition: color 160ms ease;
}

.series-list a:hover {
  color: var(--ink);
}

.series-list a[aria-current="true"] {
  color: var(--brass);
}

.series-list i,
.series-list b {
  font-family: var(--mono);
  font-size: 11px;
  font-style: normal;
  font-weight: 400;
  color: var(--ink-muted);
}

.series-list b {
  min-width: 18px;
  text-align: right;
}

.field-column-latest {
  display: block;
  margin-top: 10px;
  color: var(--ink-soft);
  transition: color 160ms ease;
}

.field-column-latest i {
  font-family: var(--mono);
  font-size: 11px;
  font-style: normal;
  letter-spacing: 0.05em;
  color: var(--brass);
}

.field-column-latest span {
  display: -webkit-box;
  margin-top: 4px;
  font-size: 13.5px;
  line-height: 1.55;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.field-column-latest:hover {
  color: var(--ink);
}

.field-column-all {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  margin-top: 12px;
  font-size: 12.5px;
  color: var(--ink-muted);
  transition: color 160ms ease;
}

.field-column-all svg {
  width: 13px;
  height: 13px;
}

.field-column-all:hover {
  color: var(--brass);
}

.field-column-note {
  margin-top: 11px;
  font-size: 12.5px;
  line-height: 1.6;
  color: var(--ink-muted);
}

.field-column.is-planned .field-column-head {
  border-bottom-style: dashed;
}

.field-column.is-planned .field-column-head h3 {
  color: var(--ink-muted);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 6px;
}

.icon-button {
  width: 38px;
  height: 38px;
  display: inline-grid;
  place-items: center;
  border: 1px solid transparent;
  border-radius: 50%;
  background: transparent;
  cursor: pointer;
  transition: color 180ms ease, border-color 180ms ease, background 180ms ease;
}

.icon-button svg {
  width: 18px;
  height: 18px;
}

.icon-button:hover {
  color: var(--brass);
  border-color: var(--line);
  background: var(--paper-raised);
}

.theme-toggle {
  position: relative;
  width: 66px;
  height: 34px;
  padding: 3px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: var(--paper-deep);
  cursor: pointer;
  transition: border-color 180ms ease, background 180ms ease;
}

.theme-toggle:hover {
  border-color: var(--line-strong);
}

.theme-choice {
  position: relative;
  z-index: 1;
  height: 26px;
  display: grid;
  place-items: center;
  color: var(--ink-muted);
  border-radius: 50%;
  transition: color 180ms ease, background 180ms ease, box-shadow 180ms ease;
}

.theme-choice svg {
  width: 15px;
  height: 15px;
}

.theme-toggle[data-active-theme="light"] .theme-light,
.theme-toggle[data-active-theme="dark"] .theme-dark {
  color: var(--ink);
  background: var(--paper-raised);
  box-shadow: 0 2px 7px var(--shadow);
}

.editorial-hero {
  position: relative;
  width: var(--shell);
  min-height: calc(100vh - 66px);
  min-height: max(640px, calc(100svh - 66px));
  margin-inline: auto;
  padding: 104px 0 96px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.hero-copy {
  width: min(980px, 100%);
  margin: 0 auto;
  padding-block: 0;
  transform: translateY(clamp(-105px, -9vh, -65px));
}

.eyebrow,
.lead-topline,
.desk-card-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  font-family: var(--sans);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.eyebrow {
  color: var(--ink-muted);
}

.editorial-hero .eyebrow {
  position: absolute;
  top: clamp(34px, 5vh, 48px);
  right: 0;
  left: 0;
}

.hero-logo {
  display: block;
  width: min(780px, 82vw);
  aspect-ratio: 25 / 8;
  margin: 0 auto;
  overflow: hidden;
}

.hero-logo-image {
  display: none;
  width: 100%;
  height: auto;
  transform: translateY(-10%);
}

[data-theme="light"] .hero-logo-light,
[data-theme="dark"] .hero-logo-dark {
  display: block;
}

.hero-statement {
  /* 620px 装不下 19 字 × 0.22em 字距的导语，宽屏会被折成两行 */
  width: min(760px, 100%);
  margin: clamp(64px, 10vh, 100px) auto 0;
  text-align: center;
}

.hero-lede {
  font-family: var(--serif);
  font-size: clamp(21px, 2.2vw, 30px);
  letter-spacing: 0.22em;
}

/* 折行只允许发生在逗号处：每个短语是原子行内块，内部不断、之间可断。
   不能用 white-space:nowrap 的行内 span —— 相邻 nowrap 行内盒会连成一串
   不可断序列，窄屏下把整块 hero 撑出视口。 */
.hero-lede span {
  display: inline-block;
}

.hero-note {
  margin-top: 12px;
  color: var(--ink-muted);
  font-family: var(--serif);
  font-size: 14px;
  letter-spacing: 0.08em;
}

.hero-enter {
  position: absolute;
  bottom: clamp(32px, 5vh, 48px);
  left: 50%;
  margin-top: 0;
  display: inline-flex;
  align-items: center;
  gap: 12px;
  color: var(--ink-muted);
  font-size: 11px;
  letter-spacing: 0.2em;
  transform: translateX(-50%);
  transition: color 180ms ease;
}

.hero-enter:active {
  transform: translate(-50%, 1px);
}

.hero-enter svg {
  width: 15px;
  height: 15px;
}

.hero-enter:hover {
  color: var(--brass);
}

.today-section,
.recent-section {
  padding-block: 104px;
}

/* 两块田之间不再叠两份 section padding：208px 的白纸在矮内容下是峡谷 */
.field-spread-section {
  padding-block: 84px;
}

.field-spread-section + .field-spread-section {
  padding-top: 0;
}

.editorial-hero + .today-section {
  padding-top: clamp(72px, 8vh, 88px);
}

.section-heading {
  min-height: 68px;
  margin-bottom: 34px;
  padding-bottom: 0;
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 24px;
}

#today-publications,
#field-observation,
#field-handbook {
  scroll-margin-top: 86px;
}

.section-heading h2 {
  margin-top: 4px;
  font-family: var(--serif);
  font-size: clamp(28px, 3vw, 42px);
  font-weight: 600;
  letter-spacing: 0.1em;
  line-height: 1.2;
}

.section-kicker {
  color: var(--brass);
  font-family: var(--sans);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.1em;
}

.section-meta {
  color: var(--ink-muted);
  font-family: var(--sans);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.08em;
}

.text-link,
.primary-link {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  color: var(--ink-soft);
  font-size: 12px;
  letter-spacing: 0.12em;
  transition: color 180ms ease;
}

.text-link:hover,
.primary-link:hover {
  color: var(--brass);
}

.today-board {
  display: grid;
  grid-template-columns: minmax(0, 7fr) minmax(340px, 5fr);
  gap: 18px;
}

.lead-publication {
  position: relative;
  min-height: 760px;
  padding: clamp(28px, 4vw, 52px);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  background: #1a1719;
  color: var(--on-dark);
  border: 1px solid rgba(255,255,255,0.14);
  cursor: pointer;
  box-shadow: 0 16px 50px var(--shadow);
  transition: border-color 200ms ease, box-shadow 200ms ease;
}

.lead-publication::before,
.lead-publication::after {
  content: "";
  position: absolute;
  pointer-events: none;
}

.lead-publication::before {
  top: 0;
  left: 26%;
  width: 1px;
  height: 100%;
  background: rgba(255,255,255,0.08);
  box-shadow: 154px 0 rgba(184,57,43,0.28), 308px 0 rgba(167,139,250,0.2);
  transform: skewX(-18deg);
  transform-origin: top;
}

.lead-publication::after {
  right: -80px;
  bottom: -80px;
  width: 260px;
  height: 260px;
  border: 1px solid rgba(167,139,250,0.28);
  border-radius: 50%;
  box-shadow: 0 0 0 42px rgba(184,57,43,0.07), 0 0 0 84px rgba(139,69,19,0.06);
}

.lead-publication > * {
  position: relative;
  z-index: 1;
}

.lead-publication:hover {
  border-color: var(--publication-accent);
  box-shadow: 0 22px 60px rgba(20, 15, 14, 0.22);
}

.lead-topline {
  color: rgba(245,240,229,0.66);
}

.publication-status {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  color: inherit;
  font-family: var(--sans);
  font-size: 10px;
  letter-spacing: 0.08em;
  white-space: nowrap;
}

.publication-status i {
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: currentColor;
}

.status-published {
  color: #49685b;
}

.status-upcoming,
.status-waiting {
  color: var(--ink-muted);
}

.status-incubating {
  color: var(--brass);
}

.lead-publication .status-upcoming,
.lead-publication .status-waiting {
  color: rgba(245,240,229,0.58);
}

.lead-publication .status-published,
.publication-identity .status-published {
  color: #b7cdbf;
}

.publication-identity .status-upcoming,
.publication-identity .status-waiting {
  color: rgba(255,255,255,0.68);
}

.publication-identity .status-incubating {
  color: rgba(255,255,255,0.68);
}

.lead-title {
  margin-top: clamp(58px, 8vh, 94px);
}

.lead-title p {
  color: rgba(245,240,229,0.7);
  font-family: var(--sans);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.12em;
}

.lead-title h3 {
  margin-top: 8px;
  font-family: var(--serif);
  font-size: clamp(58px, 7vw, 96px);
  font-weight: 500;
  letter-spacing: 0.1em;
  line-height: 1.1;
}

.lead-issue {
  width: min(590px, 100%);
  margin-top: auto;
  padding-top: 60px;
}

.lead-date {
  color: rgba(245,240,229,0.58);
  font-family: var(--sans);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.08em;
}

.lead-issue h4 {
  margin-top: 12px;
  font-family: var(--serif);
  font-size: clamp(23px, 2.4vw, 35px);
  font-weight: 500;
  line-height: 1.45;
}

.lead-summary {
  margin-top: 16px;
  display: -webkit-box;
  overflow: hidden;
  color: rgba(245,240,229,0.72);
  font-family: var(--serif);
  font-size: 14px;
  line-height: 1.9;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 3;
}

.lead-highlights {
  margin-top: 32px;
  display: grid;
  gap: 9px;
  list-style: none;
}

.lead-highlights li {
  display: grid;
  grid-template-columns: 30px 1fr;
  gap: 10px;
  color: rgba(245,240,229,0.74);
  font-size: 12px;
}

.lead-highlights span {
  color: var(--publication-accent);
  font-family: var(--sans);
  font-weight: 600;
}

.card-action {
  margin-top: 30px;
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 11px;
  letter-spacing: 0.16em;
}

.card-action svg,
.desk-card-foot svg,
.primary-link svg {
  width: 17px;
  height: 17px;
  transition: transform 180ms ease;
}

a:hover .card-action svg,
a:hover .desk-card-foot svg,
.primary-link:hover svg {
  transform: translateX(3px);
}

.desk-rail {
  display: grid;
  grid-template-rows: repeat(3, 1fr);
  gap: 18px;
}

.desk-card {
  position: relative;
  min-height: 0;
  padding: 26px 28px 22px;
  display: flex;
  flex-direction: column;
  background: var(--paper-raised);
  border: 0;
  border-left: 3px solid var(--publication);
  cursor: pointer;
  transition: border-color 180ms ease, background 180ms ease, box-shadow 180ms ease;
}

.desk-card:hover {
  border-color: var(--publication-accent);
  background: var(--paper);
  box-shadow: 0 12px 30px var(--shadow);
}

.desk-card-top {
  color: var(--ink-muted);
}

.desk-card-body {
  margin-top: 22px;
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 16px;
}

.desk-card-body p {
  color: var(--publication);
  font-family: var(--sans);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.08em;
}

[data-theme="dark"] .desk-card-body p {
  color: var(--publication-accent);
}

.desk-card-body h3 {
  margin-top: 2px;
  font-family: var(--serif);
  font-size: clamp(26px, 2.4vw, 34px);
  font-weight: 600;
  letter-spacing: 0.12em;
  line-height: 1.25;
}

.desk-time {
  color: var(--publication);
  font-family: var(--latin);
  font-size: 28px;
}

[data-theme="dark"] .desk-time {
  color: var(--publication-accent);
}

.desk-card h4 {
  margin-top: auto;
  padding-top: 20px;
  display: -webkit-box;
  overflow: hidden;
  font-family: var(--serif);
  font-size: 17px;
  font-weight: 500;
  line-height: 1.55;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 2;
}

.desk-card-foot {
  margin-top: 14px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  color: var(--ink-muted);
  font-family: var(--sans);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.08em;
}

.recent-section {
  border-top: 0;
}

.issue-list,
.archive-list {
  border-top: 0;
}

.issue-row {
  --publication: var(--brass);
  position: relative;
  min-height: 154px;
  padding: 25px 4px;
  display: grid;
  grid-template-columns: 42px 110px minmax(0, 1fr) 36px;
  align-items: start;
  gap: 24px;
  border-bottom: 0;
  cursor: pointer;
  transition: padding 180ms ease, background 180ms ease;
}

.issue-row:hover {
  padding-inline: 16px;
  background: var(--paper-raised);
}

.issue-row + .issue-row {
  margin-top: 6px;
}

.issue-index {
  color: var(--line-strong);
  font-family: var(--latin);
  font-size: 20px;
  line-height: 1.2;
}

.issue-date {
  display: grid;
  gap: 6px;
}

.issue-date > span {
  color: var(--publication);
  font-family: var(--latin);
  font-size: 25px;
  line-height: 1;
}

[data-theme="dark"] .issue-date > span {
  color: var(--publication-accent);
}

.issue-date small {
  color: var(--ink-muted);
  font-family: var(--sans);
  font-size: 10px;
  font-weight: 500;
  letter-spacing: 0.07em;
}

.issue-main {
  min-width: 0;
}

.issue-meta-line {
  display: flex;
  gap: 12px;
  color: var(--ink-muted);
  font-size: 10px;
  letter-spacing: 0.12em;
}

.issue-meta-line span + span::before {
  content: "/";
  margin-right: 12px;
  color: var(--line-strong);
}

.issue-main h3 {
  margin-top: 7px;
  font-family: var(--serif);
  font-size: clamp(18px, 1.7vw, 23px);
  font-weight: 600;
  line-height: 1.5;
  transition: color 180ms ease;
}

.issue-row:hover .issue-main h3 {
  color: var(--publication);
}

[data-theme="dark"] .issue-row:hover .issue-main h3 {
  color: var(--publication-accent);
}

.issue-main p {
  max-width: 800px;
  margin-top: 8px;
  display: -webkit-box;
  overflow: hidden;
  color: var(--ink-muted);
  font-family: var(--serif);
  font-size: 13px;
  line-height: 1.8;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 2;
}

.issue-arrow {
  align-self: center;
  justify-self: end;
  color: var(--line-strong);
}

.issue-arrow svg {
  width: 20px;
  height: 20px;
  transition: color 180ms ease, transform 180ms ease;
}

.issue-row:hover .issue-arrow svg {
  color: var(--publication);
  transform: translateX(3px);
}

/* ===== Field Spread：田身份 header + 全宽栏目目录 =====
   每块 .column-plot 通过 inline style 提供 --publication / --publication-accent，
   JS 会在 .field-spread 上设置 --field-color。 */
.field-spread {
  display: block;
}

/* 田标题横幅：以「田垄」为动机 —— 细竖线犁沟 + 巨型描边序号 + 强调色短杠，
   与多棱世界大卡的「棱镜折射」（斜线+光圈）刻意区分。 */
.field-identity {
  position: relative;
  margin-bottom: 28px;
  padding: 34px 38px;
  overflow: hidden;
  color: var(--on-dark);
  border: 1px solid rgba(255, 255, 255, 0.1);
  background:
    repeating-linear-gradient(90deg, rgba(255, 255, 255, 0.05) 0 1px, transparent 1px 54px),
    linear-gradient(120deg, #191613, #141210 74%);
}

@supports (color: color-mix(in srgb, red, blue)) {
  .field-identity {
    background:
      repeating-linear-gradient(90deg, rgba(255, 255, 255, 0.05) 0 1px, transparent 1px 54px),
      linear-gradient(120deg, color-mix(in srgb, var(--field-color) 46%, #141210), #15130f 76%);
  }
}

/* 巨型描边序号：田的图形锚点 */
.field-identity::after {
  content: attr(data-index);
  position: absolute;
  right: 34px;
  top: 50%;
  transform: translateY(-50%);
  font-family: var(--latin);
  font-size: clamp(96px, 13vw, 176px);
  font-weight: 700;
  line-height: 0.8;
  letter-spacing: -0.03em;
  color: transparent;
  -webkit-text-stroke: 1px rgba(255, 255, 255, 0.16);
  pointer-events: none;
  user-select: none;
}

.field-identity > * {
  position: relative;
  z-index: 1;
}

.field-identity .field-number {
  color: rgba(245, 240, 229, 0.62);
  letter-spacing: 0.22em;
}

.field-identity .field-name {
  color: var(--on-dark);
}

/* 田名下方的强调色短杠：编辑感锚点 */
.field-identity .field-name::after {
  content: "";
  display: block;
  width: 46px;
  height: 3px;
  margin-top: 14px;
  background: var(--field-accent, var(--field-color));
}

.field-identity .field-meta {
  color: rgba(245, 240, 229, 0.62);
}

[data-theme="dark"] .field-identity {
  border-color: rgba(255, 255, 255, 0.16);
}

[data-theme="dark"] .field-identity::after {
  -webkit-text-stroke-color: rgba(255, 255, 255, 0.12);
}

.field-number {
  color: var(--ink-muted);
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.15em;
}

.field-name {
  margin-top: 8px;
  font-family: var(--serif);
  font-size: clamp(24px, 3vw, 32px);
  font-weight: 600;
  letter-spacing: 0.08em;
  line-height: 1.3;
}

.field-meta {
  margin-top: 10px;
  color: var(--ink-muted);
  font-family: var(--sans);
  font-size: 12px;
  letter-spacing: 0.04em;
}

.field-watermark {
  position: absolute;
  top: -22px;
  left: -4px;
  color: var(--ink);
  font-family: var(--latin);
  font-size: 84px;
  line-height: 1;
  letter-spacing: 0.02em;
  white-space: nowrap;
  opacity: 0.03;
  pointer-events: none;
  user-select: none;
}

[data-theme="dark"] .field-watermark {
  opacity: 0.02;
}

/* ===== 阡陌：栏目 = 地块 =====
   相邻地块共用 1px 边线当田埂：容器持上、左，地块持右、下，接缝只画一次。
   无 gap、无圆角、无投影 —— 地块是连成一整片的，不是浮着的卡片。
   --plots 由 JS 按田内栏目数写入（FIELD 01 四块、FIELD 02 五块），
   两块田的地块宽度因此天然不同。 */
.field-columns {
  display: grid;
  grid-template-columns: repeat(var(--plots, 4), minmax(0, 1fr));
  border-top: 1px solid var(--line);
  border-left: 1px solid var(--line);
}

.column-plot {
  position: relative;
  display: flex;
  flex-direction: column;
  min-width: 0;
  min-height: 300px;
  padding: 28px 24px 22px;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  color: inherit;
  text-decoration: none;
  transition: background-color 200ms ease;
}

/* 地块顶部的土层线：栏目的颜色身份，hover 时犁深 */
.plot-soil {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--publication);
  transition: height 200ms ease;
}

.column-number {
  color: var(--publication);
  font-family: var(--mono);
  font-size: 12px;
  line-height: 1.6;
}

/* 状态钉在底边：内容在上、界标在下，地块中段的留白才读作土，不读作空 */
.column-latest {
  margin-top: auto;
  padding-top: 24px;
  min-width: 0;
  overflow: hidden;
  color: var(--ink-muted);
  font-family: var(--sans);
  font-size: 11px;
  text-align: left;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.column-body {
  margin-top: 42px;
  display: flex;
  flex-direction: column;
  gap: 7px;
  min-width: 0;
}

.column-name {
  font-family: var(--serif);
  font-size: clamp(24px, 2.4vw, 30px);
  font-weight: 600;
  letter-spacing: 0.06em;
  line-height: 1.3;
  transition: color 180ms ease;
}

.column-en {
  overflow: hidden;
  color: var(--ink-muted);
  font-family: var(--sans);
  font-size: 10.5px;
  letter-spacing: 0.08em;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.column-kicker {
  margin-top: 10px;
  color: var(--ink-soft);
  font-family: var(--serif);
  font-size: 14px;
  line-height: 1.7;
}

.column-arrow {
  position: absolute;
  right: 16px;
  bottom: 14px;
  color: var(--publication);
  font-size: 15px;
  line-height: 1.4;
  opacity: 0;
  transform: translateX(-8px);
  transition: opacity 200ms ease, transform 200ms ease;
}

/* 还没下种的地：斜纹翻土，一眼看出这块地是空的 */
.column-plot.is-fallow {
  background-image: repeating-linear-gradient(135deg, var(--plot-hatch) 0 1px, transparent 1px 10px);
}

/* 最近有更新的地块：状态点铜色，给 2D 扫描一个落点 */
.column-plot.is-featured .column-latest {
  color: var(--brass);
}

.column-plot:hover {
  background-color: var(--paper-raised);
}

.column-plot:hover .plot-soil {
  height: 5px;
}

.column-plot:hover .column-name {
  color: var(--publication);
}

.column-plot:hover .column-arrow {
  opacity: 1;
  transform: translateX(0);
}

.column-plot:focus-visible {
  outline: 2px solid var(--publication-accent);
  outline-offset: -3px;
}

/* 规划中的栏目：虚线土层、全文字弱化、无交互效果。 */
.column-plot.is-planned {
  cursor: default;
}

.column-plot.is-planned .plot-soil {
  height: 0;
  background: none;
  border-top: 3px dashed var(--line);
}

.column-plot.is-planned .column-number,
.column-plot.is-planned .column-name,
.column-plot.is-planned .column-en,
.column-plot.is-planned .column-kicker,
.column-plot.is-planned .column-latest {
  color: var(--ink-muted);
  opacity: 0.7;
}

.column-plot.is-planned:hover {
  background-color: transparent;
}

.column-plot.is-planned:hover .plot-soil {
  height: 0;
}

.column-plot.is-planned:hover .column-name {
  color: var(--ink-muted);
}

[data-theme="dark"] .field-columns {
  border-top-color: rgba(255, 255, 255, 0.06);
  border-left-color: rgba(255, 255, 255, 0.06);
}

[data-theme="dark"] .column-plot {
  border-right-color: rgba(255, 255, 255, 0.06);
  border-bottom-color: rgba(255, 255, 255, 0.06);
}

/* 深色下栏目主色太沉：土层线、编号与 hover 改用强调色，地块身份才看得见 */
[data-theme="dark"] .column-number,
[data-theme="dark"] .column-arrow {
  color: var(--publication-accent, var(--publication));
}

[data-theme="dark"] .plot-soil {
  background: var(--publication-accent, var(--publication));
}

[data-theme="dark"] .column-plot:hover .column-name {
  color: var(--publication-accent, var(--publication));
}

[data-theme="dark"] .column-plot:hover {
  background-color: rgba(255, 255, 255, 0.03);
}

[data-theme="dark"] .column-plot.is-planned:hover {
  background-color: transparent;
}

.volume-list {
  margin-top: 24px;
  display: grid;
  gap: 8px;
  color: var(--ink-muted);
  font-family: var(--serif);
  font-size: 13px;
  font-weight: 400;
  letter-spacing: 0;
}

.site-footer {
  margin-top: 80px;
  background: #171613;
  color: #e9e3d6;
}

.footer-inner {
  min-height: 330px;
  padding-block: 64px 34px;
}

.footer-main {
  display: grid;
  grid-template-columns: minmax(240px, 1fr) minmax(280px, 420px);
  align-items: end;
  gap: clamp(56px, 9vw, 140px);
}

.footer-brand {
  align-self: start;
}

.footer-overline {
  color: #8f8779;
  font-family: var(--sans);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.1em;
}

.footer-wordmark {
  display: inline-block;
  margin-top: 18px;
  font-family: var(--serif);
  font-size: 42px;
  font-weight: 700;
  letter-spacing: 0.2em;
  line-height: 1.1;
}

.footer-wordmark span {
  color: #c19b55;
}

.footer-tagline {
  margin-top: 15px;
  color: #9e9688;
  font-family: var(--serif);
  font-size: 13px;
  letter-spacing: 0.14em;
}

.footer-closer {
  justify-self: end;
  padding-bottom: 2px;
  text-align: right;
}

.footer-closer p {
  color: #9e9688;
  font-family: var(--serif);
  font-size: 15px;
  letter-spacing: 0.08em;
}

.footer-closer a {
  margin-top: 26px;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: #e9e3d6;
  font-family: var(--sans);
  font-size: 12px;
  font-weight: 400;
  letter-spacing: 0.08em;
  transition: color 180ms ease;
}

.footer-closer a:hover {
  color: #d5b56f;
}

.footer-closer svg {
  width: 15px;
  height: 15px;
}

.footer-meta {
  margin-top: 70px;
  display: flex;
  gap: 16px;
  color: #777065;
  font-family: var(--sans);
  font-size: 10px;
  font-weight: 500;
  letter-spacing: 0.08em;
}

.footer-meta span + span::before {
  content: "·";
  margin-right: 16px;
}

.footer-beian {
  margin-top: 16px;
  display: flex;
  flex-wrap: wrap;
  gap: 8px 24px;
  color: #777065;
  font-family: var(--sans);
  font-size: 10px;
  font-weight: 500;
  letter-spacing: 0.08em;
}

.footer-beian a {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: inherit;
  transition: color 180ms ease;
}

.footer-beian a:hover {
  color: #d5b56f;
}

.footer-beian img {
  width: 16px;
  height: 18px;
}

.publication-page {
  padding-top: 56px;
}

.publication-hero {
  display: grid;
  grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
  min-height: 580px;
  border: 1px solid var(--line);
  background: var(--paper-raised);
}

.publication-identity,
.latest-cover {
  padding: clamp(32px, 5vw, 64px);
}

.publication-identity {
  display: flex;
  flex-direction: column;
  color: var(--on-dark);
  background: var(--publication);
}

.publication-overline {
  color: rgba(255,255,255,0.68);
  font-family: var(--sans);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.12em;
}

.publication-kicker {
  margin-top: 58px;
  color: rgba(255,255,255,0.7);
  font-family: var(--sans);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.1em;
}

.publication-identity h1 {
  margin-top: 5px;
  font-family: var(--serif);
  font-size: clamp(48px, 6vw, 82px);
  font-weight: 500;
  letter-spacing: 0.12em;
  line-height: 1.2;
}

.publication-description {
  max-width: 390px;
  margin-top: 24px;
  color: rgba(255,255,255,0.73);
  font-family: var(--serif);
  font-size: 14px;
}

.hero-volumes {
  margin-top: 34px;
  display: grid;
  gap: 9px;
}

.hero-volumes span {
  display: flex;
  align-items: baseline;
  gap: 14px;
  font-family: var(--serif);
  font-size: 12px;
  font-weight: 400;
  letter-spacing: 0;
}

.hero-volumes i {
  min-width: 50px;
  color: var(--publication-accent);
  font-family: var(--latin);
  font-size: 10px;
  font-weight: 400;
  font-style: normal;
  letter-spacing: 0.08em;
}

.publication-schedule {
  margin-top: auto;
  display: grid;
  grid-template-columns: auto auto 1fr;
  align-items: baseline;
  gap: 14px;
  color: rgba(255,255,255,0.62);
  font-family: var(--sans);
  font-size: 10px;
  font-weight: 500;
  letter-spacing: 0.08em;
}

.publication-schedule strong {
  color: #fff;
  font-family: var(--latin);
  font-size: 27px;
  font-weight: 400;
}

.latest-cover {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  justify-content: center;
}

.latest-cover-head {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.latest-cover-date {
  margin-top: 46px;
  color: var(--ink-muted);
  font-family: var(--sans);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.08em;
}

.latest-cover h2 {
  max-width: 660px;
  margin-top: 15px;
  font-family: var(--serif);
  font-size: clamp(30px, 4vw, 53px);
  font-weight: 600;
  line-height: 1.38;
}

.latest-cover > p:not(.section-kicker):not(.latest-cover-date) {
  max-width: 660px;
  margin-top: 23px;
  display: -webkit-box;
  overflow: hidden;
  color: var(--ink-muted);
  font-family: var(--serif);
  font-size: 14px;
  line-height: 1.95;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 4;
}

.primary-link {
  margin-top: 38px;
  color: var(--ink);
}

.archive-section {
  padding-top: 104px;
}

.archive-tools {
  margin-bottom: 42px;
  display: grid;
  grid-template-columns: minmax(260px, 420px) 1fr;
  align-items: center;
  gap: 24px;
}

.search-field {
  position: relative;
  display: block;
}

.search-field svg {
  position: absolute;
  top: 50%;
  left: 16px;
  width: 18px;
  height: 18px;
  color: var(--ink-muted);
  transform: translateY(-50%);
}

.search-field input {
  width: 100%;
  height: 48px;
  padding: 0 16px 0 48px;
  background: var(--paper-raised);
  border: 1px solid var(--line);
  border-radius: 0;
  outline: none;
  font-family: var(--sans);
  font-size: 14px;
  font-weight: 400;
  letter-spacing: 0.015em;
  line-height: 1;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  transition: border-color 180ms ease, box-shadow 180ms ease;
}

.search-field input:focus {
  border-color: var(--brass);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--brass) 12%, transparent);
}

.search-field input::placeholder {
  color: var(--ink-muted);
  font-family: var(--sans);
  font-size: inherit;
  font-style: normal;
  font-weight: 300;
  letter-spacing: 0;
  opacity: 0.66;
}

.filter-row {
  display: flex;
  justify-content: flex-end;
  gap: 8px;
  overflow-x: auto;
  scrollbar-width: none;
}

.filter-row::-webkit-scrollbar {
  display: none;
}

.filter-chip {
  flex: 0 0 auto;
  min-height: 34px;
  padding: 6px 13px;
  color: var(--ink-muted);
  background: transparent;
  border: 1px solid var(--line);
  border-radius: 999px;
  cursor: pointer;
  font-size: 11px;
  transition: color 180ms ease, border-color 180ms ease, background 180ms ease;
}

.filter-chip:hover {
  color: var(--ink);
  border-color: var(--line-strong);
}

.filter-chip.active {
  color: var(--paper);
  background: var(--ink);
  border-color: var(--ink);
}

/* 篇筛选是链接而不是按钮：篇是结构层级，要有可分享、可收藏的地址。 */
a.filter-chip {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  font-family: var(--ui-sans);
}

a.filter-chip b {
  font-family: var(--mono);
  font-weight: 400;
  opacity: 0.6;
}

.part-row {
  justify-content: flex-start;
  margin-bottom: 18px;
}

.archive-year {
  padding: 36px 0 12px;
  display: flex;
  align-items: center;
  gap: 18px;
  color: var(--line-strong);
  font-family: var(--latin);
  font-size: 23px;
}

.archive-year i {
  display: none;
}

.archive-list .issue-row {
  grid-template-columns: 110px minmax(0, 1fr) 36px;
}

.archive-list .issue-index {
  display: none;
}

.search-page {
  padding-top: 44px;
}

.search-stage {
  max-width: 1040px;
  padding: 40px 0 64px;
}

.search-stage h1 {
  margin-top: 9px;
  font-family: var(--serif);
  font-size: clamp(46px, 6vw, 70px);
  font-weight: 500;
  letter-spacing: 0.12em;
  line-height: 1.25;
}

.search-stage > p:not(.section-kicker) {
  margin-top: 12px;
  color: var(--ink-muted);
  font-family: var(--serif);
  font-size: 15px;
}

.search-field-large {
  max-width: 940px;
  margin-top: 30px;
}

.search-field-large input {
  height: 72px;
  padding: 0 22px 0 66px;
  background: var(--paper-raised);
  border: 1px solid var(--line-strong);
  box-shadow: 0 12px 36px var(--shadow);
  font-family: var(--sans);
  font-size: 15px;
  font-weight: 400;
  letter-spacing: 0;
}

.search-field-large svg {
  left: 24px;
  width: 23px;
  height: 23px;
  color: var(--ink);
}

.search-filters {
  max-width: 940px;
  margin-top: 18px;
  justify-content: flex-start;
}

.search-results-section {
  padding-bottom: 80px;
}

.result-heading h2 {
  font-size: 27px;
}

.empty-state {
  min-height: 260px;
  padding: 64px 20px;
  display: grid;
  place-items: center;
  align-content: center;
  text-align: center;
}

.empty-mark {
  color: var(--brass);
  font-family: var(--latin);
  font-size: 34px;
}

.empty-state h3 {
  margin-top: 10px;
  font-family: var(--serif);
  font-size: 22px;
}

.empty-state p {
  margin-top: 8px;
  color: var(--ink-muted);
  font-family: var(--serif);
  font-size: 13px;
}

.noscript {
  padding: 24px;
  color: #fff;
  background: #8d2f2f;
  text-align: center;
}

/* 阅读器外壳：让内刊视觉完整占据视口 */
html.reader-page {
  scrollbar-gutter: auto;
}

body[data-page="reader"] {
  overflow: hidden;
  background: #111;
}

.reader-frame {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  border: 0;
  background: #fff;
}

.reader-loading {
  position: fixed;
  inset: 0;
  z-index: 850;
  display: grid;
  place-items: center;
  color: #8d8577;
  background: #f2efe7;
  font-family: var(--serif);
  letter-spacing: 0.18em;
}

.reader-loading.hidden {
  display: none;
}

.theme-anim,
.theme-anim .site-header,
.theme-anim .desk-card,
.theme-anim .column-plot,
.theme-anim .issue-row,
.theme-anim .site-footer {
  transition: color 220ms ease, background-color 220ms ease, border-color 220ms ease;
}

@media (max-width: 1000px) {
  :root { --shell: min(calc(100vw - 40px), 900px); }
  .site-header-inner { gap: 18px; }
  .field-nav { gap: 22px; font-size: 14px; }
  .field-panel-inner { grid-template-columns: 1fr; gap: 24px; }
  .field-panel-id { padding-right: 46px; padding-bottom: 18px; border-right: 0; border-bottom: 1px solid var(--line); }
  .field-panel-stat { margin-top: 12px; }
  /* 单栏面板下篇行只留篇名：章号区间与篇数在窄屏是次要信息，
     而三轨 grid 在窄容器里会把它们顶出右边界。 */
  .series-list a { display: block; }
  .series-list i,
  .series-list b { display: none; }
  .today-board { grid-template-columns: 1fr; }
  .lead-publication { min-height: 680px; }
  .desk-rail { grid-template-columns: repeat(3, minmax(0, 1fr)); grid-template-rows: none; }
  .desk-card { min-height: 270px; }
  .desk-card-body { align-items: flex-start; }
  .desk-time { font-size: 21px; }
  .desk-card h4 { font-size: 15px; }
  .field-identity {
    margin-bottom: 24px;
  }
  /* 阡陌收成两列；五块地的末块横跨补齐，不留孤块 */
  .field-columns { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .column-plot:last-child:nth-child(odd) { grid-column: span 2; }
  .field-watermark { display: none; }
  .publication-hero { grid-template-columns: 1fr; }
  .publication-identity { min-height: 520px; }
  .latest-cover { min-height: 470px; }
}

@media (max-width: 720px) {
  :root { --shell: calc(100vw - 32px); }
  .site-header { min-height: 108px; }
  #today-publications, #field-observation, #field-handbook { scroll-margin-top: 126px; }
  .site-header-inner { min-height: 108px; grid-template-columns: 1fr auto; grid-template-rows: 56px 52px; }
  .wordmark { font-size: 20px; }
  .field-nav { grid-column: 1 / -1; grid-row: 2; gap: 26px; font-size: 15px; }
  .field-tab { padding-block: 14px; }
  .field-tab-full { display: none; }
  .field-tab-short { display: inline; }
  /* header 有 backdrop-filter，会成为 fixed 后代的包含块，所以这里只能用
     absolute + max-height：面板从 header 底边起算，超出视口的部分内部滚动。 */
  .field-panel { max-height: calc(100vh - 108px); max-height: calc(100svh - 108px); overflow-y: auto; background: var(--paper); animation: none; }
  /* 宽度跟着面板走而不是 100vw：vw 会把滚动条算进去，比可见区宽，
     右对齐的章号区间会被顶到屏幕外。 */
  .field-panel-inner { width: auto; margin-inline: 16px; padding-block: 20px 44px; }
  .field-panel-close { display: grid; }
  /* 侧栏不再是定位基准，关闭按钮直接钉在面板右上角，避免被滚动容器裁掉 */
  .field-panel { position: relative; }
  .field-panel-id { position: static; }
  .field-panel-close { top: 10px; right: 10px; }
  .field-panel-columns { grid-template-columns: 1fr; gap: 28px; }
  body.field-nav-open { overflow: hidden; }
  .header-actions { grid-column: 2; grid-row: 1; }
  .editorial-hero { min-height: calc(100vh - 108px); min-height: max(540px, calc(100svh - 108px)); padding: 88px 0 76px; }
  .editorial-hero .eyebrow { top: 24px; }
  .hero-copy { padding-block: 0; transform: translateY(-4vh); }
  .hero-logo { width: min(560px, 92vw); margin-top: 0; }
  .hero-statement { margin-top: 60px; }
  .hero-enter { bottom: 28px; }
  .hero-lede { font-size: 20px; letter-spacing: 0.16em; }
  .hero-note { font-size: 12px; }
  .today-section, .recent-section, .field-spread-section { padding-block: 72px; }
  .section-heading { align-items: flex-end; }
  .section-heading h2 { font-size: 29px; }
  .lead-publication { min-height: 620px; padding: 28px 24px; }
  .lead-title { margin-top: 54px; }
  .lead-title h3 { font-size: clamp(48px, 15vw, 68px); }
  .lead-issue { padding-top: 44px; }
  .lead-summary { -webkit-line-clamp: 2; }
  .desk-rail { grid-template-columns: 1fr; }
  .desk-card { min-height: 250px; }
  .issue-row, .archive-list .issue-row { grid-template-columns: 74px minmax(0, 1fr) 24px; gap: 14px; }
  .issue-index { display: none; }
  .issue-date > span { font-size: 20px; }
  .issue-main p { -webkit-line-clamp: 2; }
  .column-plot { min-height: 250px; padding: 22px 18px 18px; }
  .column-body { margin-top: 30px; }
  .column-latest { padding-top: 18px; }
  .footer-main { grid-template-columns: 1fr; gap: 46px; }
  .footer-closer { justify-self: start; text-align: left; }
  .footer-meta { margin-top: 52px; flex-wrap: wrap; }
  .publication-page { padding-top: 32px; }
  .publication-identity, .latest-cover { padding: 34px 26px; }
  .publication-identity { min-height: 490px; }
  .publication-kicker { margin-top: 56px; }
  .publication-identity h1 { font-size: 52px; }
  .latest-cover { min-height: 430px; }
  .latest-cover-date { margin-top: 36px; }
  .latest-cover h2 { font-size: 31px; }
  .archive-section { padding-top: 72px; }
  .archive-tools { grid-template-columns: 1fr; }
  .filter-row { justify-content: flex-start; }
  .search-page { padding-top: 36px; }
  .search-stage { padding: 36px 0 54px; }
  .search-stage h1 { font-size: 48px; }
  .search-field-large input { font-size: 14px; }
}

@media (max-width: 480px) {
  .eyebrow { align-items: flex-start; flex-direction: column; gap: 5px; }
  .hero-statement { margin-top: 42px; }
  .hero-note { padding-inline: 12px; }
  .section-heading { min-height: 58px; margin-bottom: 24px; }
  .section-meta, .section-heading .text-link { max-width: 120px; text-align: right; }
  .lead-publication { min-height: 590px; }
  .lead-title h3 { letter-spacing: 0.06em; }
  .lead-highlights { display: none; }
  .issue-row, .archive-list .issue-row { grid-template-columns: 1fr 26px; }
  .issue-date { grid-column: 1; display: flex; align-items: baseline; gap: 9px; }
  .issue-main { grid-column: 1; }
  .issue-arrow { grid-column: 2; grid-row: 1 / 3; }
  .field-columns { grid-template-columns: 1fr; }
  .column-plot:last-child:nth-child(odd) { grid-column: auto; }
  .column-plot { min-height: 210px; }
  .publication-schedule { grid-template-columns: auto auto; }
  .publication-schedule span:last-child { grid-column: 1 / -1; }
  .footer-meta { display: grid; gap: 7px; }
  .footer-meta span + span::before { display: none; }
  .footer-beian { display: grid; gap: 8px; justify-items: start; }
}

@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; }
}