:root {
  --ink: #1a1a1a;
  --paper: #faf9f7;
  --accent: #c0392b;
  --muted: #6b6b6b;
  --line: #e2e0dc;
  --line-strong: #cfccc6;
  --paper-soft: #f2f0ec;
  --font-sans: "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Source Han Sans SC", sans-serif;
  --font-narrow: "Arial Narrow", "Helvetica Neue Condensed", "PingFang SC", "Microsoft YaHei", sans-serif;
  --font-mono: "SFMono-Regular", "Menlo", "Consolas", "Courier New", monospace;
  --wrap: 1180px;
  --wrap-narrow: 1000px;
  --gap: 28px;
  --radius: 6px;
  --radius-sm: 4px;
}

/* ============ base ============ */

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
}

body.site-body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.75;
  color: var(--ink);
  background-color: var(--paper);
  -webkit-font-smoothing: antialiased;
}

h1,
h2,
h3,
h4 {
  margin: 0;
  font-family: var(--font-narrow);
  font-weight: 700;
  line-height: 1.3;
  color: var(--ink);
}

p {
  margin: 0;
}

ul,
ol {
  margin: 0;
  padding: 0;
  list-style: none;
}

a {
  color: var(--ink);
  text-decoration: none;
}

a:hover,
a:focus-visible {
  color: var(--accent);
}

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

figure {
  margin: 0;
}

table {
  border-collapse: collapse;
  width: 100%;
}

button {
  font: inherit;
  color: inherit;
}

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

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

/* ============ layout ============ */

.site-header {
  border-bottom: 1px solid var(--line);
  background-color: var(--paper);
}

.site-header-inner {
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 18px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.site-main {
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 0 24px 72px;
}

.inner-main {
  max-width: var(--wrap);
  padding-top: 26px;
}

.site-footer {
  border-top: 1px solid var(--line);
  background-color: var(--paper-soft);
}

.site-footer-inner {
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 44px 24px 28px;
}

.footer-columns {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 28px;
}

.footer-bottom {
  margin-top: 32px;
  padding-top: 18px;
  border-top: 1px solid var(--line);
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 8px 20px;
}

/* ============ header / nav ============ */

.site-brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  min-height: 44px;
}

.brand-mark {
  font-family: var(--font-narrow);
  font-size: 22px;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--ink);
}

.brand-slogan {
  font-size: 12px;
  color: var(--muted);
  padding-left: 12px;
  border-left: 1px solid var(--line-strong);
  line-height: 1.4;
}

.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  padding: 0;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-sm);
  background-color: transparent;
  cursor: pointer;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
}

.nav-toggle-bar {
  display: block;
  width: 20px;
  height: 2px;
  background-color: var(--ink);
}

.site-nav {
  display: block;
}

.nav-list {
  display: flex;
  align-items: center;
  gap: 4px;
}

.nav-item {
  display: block;
}

.nav-link {
  display: block;
  padding: 10px 14px;
  font-size: 15px;
  color: var(--ink);
  border-radius: var(--radius-sm);
  min-height: 44px;
  line-height: 1.6;
  white-space: nowrap;
}

.nav-link:hover,
.nav-link:focus-visible {
  background-color: var(--paper-soft);
  color: var(--accent);
}

.nav-link.is-current {
  color: var(--accent);
  font-weight: 700;
  box-shadow: inset 0 -2px 0 var(--accent);
}

/* ============ breadcrumb / page header ============ */

.breadcrumb {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  font-size: 13px;
  color: var(--muted);
  margin-bottom: 18px;
}

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

.breadcrumb a:hover,
.breadcrumb a:focus-visible {
  color: var(--accent);
}

.breadcrumb-sep {
  color: var(--line-strong);
}

.breadcrumb-current {
  color: var(--ink);
}

.page-header,
.inner-main > .page-header {
  padding-bottom: 22px;
  margin-bottom: 30px;
  border-bottom: 1px solid var(--line);
}

.page-description {
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--accent);
  text-transform: uppercase;
  margin-bottom: 10px;
}

.page-title {
  font-size: 32px;
  font-weight: 700;
  line-height: 1.25;
  margin-bottom: 12px;
}

.page-summary,
.page-lead {
  font-size: 15px;
  color: var(--muted);
  max-width: 780px;
}

.page-summary a,
.page-lead a {
  color: var(--accent);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ============ shared section head ============ */

.section-head {
  margin-bottom: 24px;
}

.section-title {
  font-size: 22px;
  font-weight: 700;
  padding-left: 12px;
  border-left: 3px solid var(--accent);
  margin-bottom: 8px;
}

.module-title {
  font-size: 22px;
  font-weight: 700;
  padding-left: 12px;
  border-left: 3px solid var(--accent);
  margin-bottom: 8px;
}

.section-desc,
.section-intro,
.module-intro {
  font-size: 14px;
  color: var(--muted);
  max-width: 760px;
}

.module-intro {
  margin-bottom: 22px;
}

/* ============ buttons ============ */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 10px 22px;
  font-size: 15px;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  cursor: pointer;
}

.btn-primary {
  background-color: var(--accent);
  color: #ffffff;
}

.btn-primary:hover,
.btn-primary:focus-visible {
  background-color: #a5301f;
  color: #ffffff;
}

.btn-ghost {
  border-color: var(--line-strong);
  color: var(--ink);
}

.btn-ghost:hover,
.btn-ghost:focus-visible {
  border-color: var(--accent);
  color: var(--accent);
}

.button-primary,
.button-ghost {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 10px 22px;
  font-size: 15px;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
}

.button-primary {
  background-color: var(--accent);
  color: #ffffff;
}

.button-primary:hover,
.button-primary:focus-visible {
  background-color: #a5301f;
  color: #ffffff;
}

.button-ghost {
  border-color: var(--line-strong);
}

.button-ghost:hover,
.button-ghost:focus-visible {
  border-color: var(--accent);
  color: var(--accent);
}

.text-link,
.inline-link {
  color: var(--accent);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.text-link:hover,
.inline-link:hover,
.text-link:focus-visible,
.inline-link:focus-visible {
  color: #a5301f;
}

/* ============ footer ============ */

.footer-title {
  font-size: 14px;
  font-weight: 700;
  color: var(--ink);
  margin-bottom: 12px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--line);
}

.footer-list {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.footer-link {
  display: inline-block;
  font-size: 14px;
  color: var(--muted);
  min-height: 32px;
  line-height: 32px;
}

.footer-link:hover,
.footer-link:focus-visible {
  color: var(--accent);
}

.footer-brand {
  font-family: var(--font-narrow);
  font-size: 16px;
  font-weight: 700;
}

.footer-slogan {
  font-size: 13px;
  color: var(--muted);
}

.footer-copy {
  font-size: 12px;
  color: var(--muted);
  margin-left: auto;
}

/* ============ tables ============ */

.field-table {
  border-top: 1px solid var(--ink);
  font-size: 14px;
}

.field-caption,
.table-caption {
  caption-side: top;
  text-align: left;
  font-size: 13px;
  color: var(--muted);
  padding: 8px 0;
}

.field-table thead th {
  text-align: left;
  font-size: 13px;
  font-weight: 700;
  color: var(--ink);
  padding: 10px 14px;
  border-bottom: 1px solid var(--line-strong);
  background-color: var(--paper-soft);
}

.field-table tbody th,
.field-table tbody td {
  text-align: left;
  padding: 12px 14px;
  border-bottom: 1px solid var(--line);
  vertical-align: top;
  font-weight: 400;
}

.field-table tbody th {
  font-weight: 700;
  color: var(--ink);
  width: 32%;
}

.field-name {
  font-weight: 700;
  color: var(--ink);
  width: 32%;
}

.field-desc {
  color: var(--muted);
}

/* ============ index: fact bar ============ */

.fact-bar {
  background-color: var(--ink);
  color: #e9e7e3;
}

.fact-bar-inner {
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 8px 24px;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 6px 18px;
  font-size: 12.5px;
}

.fact-brand {
  font-weight: 700;
  color: #ffffff;
}

.fact-note {
  color: #c9c6c1;
}

/* ============ index: anchor nav ============ */

.anchor-nav {
  border-bottom: 1px solid var(--line);
  margin-bottom: 34px;
}

.anchor-list {
  display: flex;
  flex-wrap: wrap;
  gap: 4px 22px;
  padding: 12px 0;
}

.anchor-link {
  display: inline-block;
  font-size: 14px;
  color: var(--muted);
  min-height: 44px;
  line-height: 44px;
  border-bottom: 2px solid transparent;
}

.anchor-link:hover,
.anchor-link:focus-visible {
  color: var(--accent);
  border-bottom-color: var(--accent);
}

/* ============ index: magazine hero ============ */

.magazine-hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 460px);
  gap: 48px;
  align-items: start;
  padding-bottom: 46px;
  margin-bottom: 46px;
  border-bottom: 1px solid var(--line);
}

.hero-text {
  padding-top: 8px;
}

.hero-issue {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.16em;
  color: var(--accent);
  margin-bottom: 14px;
}

.hero-title {
  font-size: 44px;
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: 18px;
}

.hero-lead {
  font-size: 16px;
  color: #3d3d3d;
  margin-bottom: 20px;
  max-width: 560px;
}

.hero-points {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 26px;
}

.hero-point {
  position: relative;
  padding-left: 18px;
  font-size: 14.5px;
  color: var(--muted);
}

.hero-point::before {
  content: "";
  position: absolute;
  left: 0;
  top: 11px;
  width: 8px;
  height: 1px;
  background-color: var(--accent);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.hero-visual {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  background-color: var(--paper-soft);
}

.hero-visual img {
  width: 100%;
  height: 420px;
  object-fit: cover;
  aspect-ratio: 4 / 5;
}

.hero-caption {
  padding: 12px 16px;
  font-size: 12.5px;
  color: var(--muted);
  border-top: 1px solid var(--line);
}

/* ============ index: subject overview ============ */

.subject-overview {
  padding-bottom: 46px;
  margin-bottom: 46px;
  border-bottom: 1px solid var(--line);
}

.subject-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 20px;
}

.subject-card {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 20px 18px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background-color: #ffffff;
}

.subject-name {
  font-size: 18px;
  font-weight: 700;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--line);
}

.subject-trait {
  font-size: 14px;
  color: var(--muted);
}

.subject-rep {
  font-size: 13px;
  color: #4a4a4a;
  padding: 8px 10px;
  background-color: var(--paper-soft);
  border-radius: var(--radius-sm);
}

.subject-link {
  margin-top: auto;
  font-size: 14px;
  color: var(--accent);
  min-height: 44px;
  display: inline-flex;
  align-items: center;
}

.subject-link:hover,
.subject-link:focus-visible {
  color: #a5301f;
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ============ index: home columns ============ */

.home-columns {
  padding-bottom: 46px;
  margin-bottom: 46px;
  border-bottom: 1px solid var(--line);
}

.columns-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.55fr) minmax(0, 1fr);
  gap: 40px;
  align-items: start;
}

.column-title {
  font-size: 19px;
  font-weight: 700;
  margin-bottom: 8px;
}

.column-desc {
  font-size: 14px;
  color: var(--muted);
  margin-bottom: 20px;
}

.cover-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 20px;
}

.cover-card {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 12px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background-color: #ffffff;
  transition: transform 0.18s ease, border-color 0.18s ease;
}

.cover-card:hover {
  border-color: var(--line-strong);
  transform: translateY(-2px);
}

.cover-figure {
  border-radius: var(--radius-sm);
  overflow: hidden;
  background-color: var(--paper-soft);
}

.cover-figure img {
  width: 100%;
  height: 200px;
  object-fit: cover;
  aspect-ratio: 3 / 4;
}

.cover-name {
  font-size: 15px;
  font-weight: 700;
  line-height: 1.4;
}

.cover-tag {
  font-size: 12.5px;
  color: var(--accent);
}

.cover-status {
  font-size: 12.5px;
  color: var(--muted);
}

.column-side {
  padding-left: 40px;
  border-left: 1px solid var(--line);
}

.update-list {
  display: flex;
  flex-direction: column;
}

.update-row {
  display: grid;
  grid-template-columns: 68px minmax(0, 1fr) 88px;
  gap: 10px;
  align-items: baseline;
  padding: 11px 0;
  border-bottom: 1px solid var(--line);
  font-size: 14px;
}

.update-batch {
  font-family: var(--font-mono);
  font-size: 12.5px;
  color: var(--accent);
}

.update-name {
  color: var(--ink);
  line-height: 1.5;
}

.update-subject {
  font-size: 12.5px;
  color: var(--muted);
  text-align: right;
}

.update-state {
  font-size: 12.5px;
  color: var(--muted);
  grid-column: 2 / 4;
}

.column-more {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  margin-top: 14px;
  font-size: 14px;
  color: var(--accent);
}

.column-more:hover,
.column-more:focus-visible {
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ============ index: guide steps + feedback ============ */

.guide-steps {
  padding-bottom: 46px;
  margin-bottom: 46px;
  border-bottom: 1px solid var(--line);
}

.step-list {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 22px;
}

.step-item {
  position: relative;
  padding: 22px 20px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background-color: #ffffff;
}

.step-index {
  display: block;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.12em;
  color: var(--accent);
  margin-bottom: 10px;
}

.step-name,
.step-title {
  font-size: 17px;
  font-weight: 700;
  margin-bottom: 8px;
}

.step-text {
  font-size: 14px;
  color: var(--muted);
  margin-bottom: 14px;
}

.step-link {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  font-size: 14px;
  color: var(--accent);
}

.step-link:hover,
.step-link:focus-visible {
  text-decoration: underline;
  text-underline-offset: 3px;
}

.feedback-note {
  margin-top: 26px;
  padding: 20px 22px;
  border-left: 3px solid var(--accent);
  background-color: var(--paper-soft);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
}

.feedback-title {
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 8px;
}

.feedback-text {
  font-size: 14px;
  color: var(--muted);
  margin-bottom: 10px;
}

.feedback-link {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  font-size: 14px;
  color: var(--accent);
}

.feedback-link:hover,
.feedback-link:focus-visible {
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ============ index: site index grid ============ */

.site-index {
  padding-bottom: 10px;
}

.index-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.index-item {
  display: block;
}

.index-link {
  display: flex;
  flex-direction: column;
  gap: 4px;
  min-height: 88px;
  padding: 16px 18px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background-color: #ffffff;
  transition: border-color 0.18s ease, transform 0.18s ease;
}

.index-link:hover,
.index-link:focus-visible {
  border-color: var(--accent);
  transform: translateY(-2px);
}

.index-name {
  font-family: var(--font-narrow);
  font-size: 16px;
  font-weight: 700;
}

.index-desc {
  font-size: 13px;
  color: var(--muted);
}

/* ============ subject page ============ */

.filter-bar {
  padding: 22px 0 26px;
  border-bottom: 1px solid var(--line);
  margin-bottom: 34px;
}

.filter-intro {
  font-size: 14px;
  color: var(--muted);
  margin-bottom: 16px;
  max-width: 780px;
}

.filter-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 14px;
}

.filter-tag {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 8px 18px;
  font-size: 14px;
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  color: var(--ink);
  background-color: #ffffff;
}

.filter-tag:hover,
.filter-tag:focus-visible {
  border-color: var(--accent);
  color: var(--accent);
}

.filter-status {
  font-size: 13.5px;
  color: var(--muted);
}

.filter-status strong {
  color: var(--accent);
}

.subject-groups {
  margin-bottom: 40px;
}

.subject-group {
  padding: 26px 0 30px;
  border-bottom: 1px solid var(--line);
}

.group-header {
  margin-bottom: 16px;
}

.group-title {
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 6px;
}

.group-note {
  font-size: 14px;
  color: var(--muted);
  max-width: 760px;
}

.group-cover {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  margin-bottom: 20px;
  background-color: var(--paper-soft);
}

.group-cover img {
  width: 100%;
  height: 260px;
  object-fit: cover;
  aspect-ratio: 16 / 5;
}

.group-cover-caption {
  padding: 10px 16px;
  font-size: 12.5px;
  color: var(--muted);
  border-top: 1px solid var(--line);
}

.entry-list {
  display: flex;
  flex-direction: column;
}

.entry-item {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  padding: 14px 0;
  border-bottom: 1px solid var(--line);
}

.entry-item:last-child {
  border-bottom: 0;
}

.entry-thumb {
  width: 96px;
  height: 128px;
  flex: 0 0 96px;
  object-fit: cover;
  border-radius: var(--radius-sm);
  background-color: var(--paper-soft);
}

.entry-body {
  min-width: 0;
}

.entry-body .entry-title {
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 6px;
}

.entry-meta {
  font-size: 13px;
  color: var(--muted);
}

.field-reference {
  padding: 30px 0 34px;
  border-top: 1px solid var(--line);
}

.field-intro {
  font-size: 14px;
  color: var(--muted);
  margin-bottom: 18px;
  max-width: 760px;
}

.result-note {
  margin-top: 22px;
  padding: 18px 20px;
  background-color: var(--paper-soft);
  border-radius: var(--radius-sm);
}

.result-title {
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 8px;
}

.result-text {
  font-size: 14px;
  color: var(--muted);
}

/* ============ updates page ============ */

.module {
  padding: 30px 0 34px;
  border-bottom: 1px solid var(--line);
}

.module:last-of-type {
  border-bottom: 0;
}

.batch-status-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.status-cell {
  padding: 18px 20px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background-color: #ffffff;
}

.status-label {
  font-size: 13px;
  color: var(--muted);
  font-weight: 400;
  margin-bottom: 8px;
}

.status-value {
  font-family: var(--font-mono);
  font-size: 20px;
  font-weight: 700;
  color: var(--accent);
  margin-bottom: 6px;
}

.status-note {
  font-size: 13px;
  color: var(--muted);
}

.batch-group {
  padding: 22px 0;
  border-bottom: 1px solid var(--line);
}

.batch-group:last-child {
  border-bottom: 0;
}

.batch-head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 6px 16px;
  margin-bottom: 12px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--line-strong);
  position: sticky;
  top: 0;
  background-color: var(--paper);
  z-index: 1;
}

.batch-title {
  font-size: 18px;
  font-weight: 700;
}

.batch-meta {
  font-size: 13px;
  color: var(--muted);
}

.update-timeline .update-list {
  display: flex;
  flex-direction: column;
}

.update-timeline .update-row {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  padding: 14px 0;
  border-bottom: 1px solid var(--line);
}

.update-timeline .update-row:last-child {
  border-bottom: 0;
}

.update-thumb {
  flex: 0 0 68px;
  width: 68px;
  height: 90px;
  border-radius: var(--radius-sm);
  overflow: hidden;
  background-color: var(--paper-soft);
}

.update-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.update-body {
  min-width: 0;
  flex: 1 1 auto;
}

.update-timeline .update-name {
  display: inline-block;
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 6px;
}

.update-timeline .update-tags {
  font-size: 13px;
  color: var(--muted);
}

.update-timeline .update-state {
  flex: 0 0 auto;
  font-size: 13px;
  color: var(--accent);
  padding-top: 3px;
}

.record-field-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.5fr) minmax(0, 1fr);
  gap: 36px;
  align-items: start;
}

.field-paragraph {
  font-size: 15px;
  color: #3d3d3d;
  margin-bottom: 14px;
}

.record-field-entry {
  padding: 20px 22px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background-color: #ffffff;
}

.record-field-entry .entry-title {
  font-size: 17px;
  font-weight: 700;
  margin-bottom: 12px;
}

.record-field-entry .entry-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.record-field-entry .entry-item {
  display: block;
  padding: 0;
  border-bottom: 0;
}

.record-field-entry .entry-link {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  font-size: 14px;
  color: var(--accent);
}

.record-field-entry .entry-link:hover,
.record-field-entry .entry-link:focus-visible {
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ============ task band / task strip ============ */

.task-band,
.task-strip {
  padding: 30px 0 10px;
}

.task-band-list,
.task-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.task-band-item,
.task-item {
  display: block;
}

.task-band-link,
.task-link {
  display: flex;
  flex-direction: column;
  gap: 4px;
  min-height: 76px;
  padding: 18px 20px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background-color: #ffffff;
  font-family: var(--font-narrow);
  font-size: 16px;
  font-weight: 700;
  transition: border-color 0.18s ease, transform 0.18s ease;
}

.task-band-link:hover,
.task-band-link:focus-visible,
.task-link:hover,
.task-link:focus-visible {
  border-color: var(--accent);
  transform: translateY(-2px);
}

.task-desc {
  font-family: var(--font-sans);
  font-size: 13px;
  font-weight: 400;
  color: var(--muted);
}

.task-links,
.task-band-links {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

.task-links .task-link,
.task-band-links .task-link {
  flex: 1 1 260px;
}

/* ============ ranking page ============ */

.page-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.6fr) minmax(0, 1fr);
  gap: 40px;
  align-items: start;
}

.ranking-list-section {
  min-width: 0;
}

.ranking-list {
  display: flex;
  flex-direction: column;
  border-top: 1px solid var(--ink);
}

.ranking-row {
  display: grid;
  grid-template-columns: 44px 76px minmax(0, 1fr);
  gap: 16px;
  align-items: center;
  padding: 14px 0;
  border-bottom: 1px solid var(--line);
  transition: background-color 0.18s ease;
}

.ranking-row:hover {
  background-color: #ffffff;
}

.ranking-index {
  font-family: var(--font-mono);
  font-size: 18px;
  font-weight: 700;
  color: var(--accent);
  text-align: center;
}

.ranking-cover {
  width: 76px;
  height: 100px;
  border-radius: var(--radius-sm);
  overflow: hidden;
  background-color: var(--paper-soft);
}

.ranking-cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.ranking-body {
  min-width: 0;
}

.ranking-name {
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 4px;
}

.ranking-tag {
  font-size: 13px;
  color: var(--accent);
  margin-bottom: 4px;
}

.ranking-meta {
  font-size: 13px;
  color: var(--muted);
}

.ranking-field-section {
  display: grid;
  grid-template-columns: minmax(0, 1.5fr) minmax(0, 1fr);
  gap: 36px;
  align-items: start;
  padding: 34px 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  margin-top: 40px;
}

.ranking-field-main {
  min-width: 0;
}

.ranking-field-aside {
  min-width: 0;
  padding: 20px 22px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background-color: #ffffff;
}

.ranking-field-aside .section-title {
  font-size: 18px;
}

.aside-text {
  font-size: 14px;
  color: var(--muted);
  margin: 12px 0 16px;
}

.read-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.read-item {
  position: relative;
  padding-left: 16px;
  font-size: 14px;
  color: #3d3d3d;
}

.read-item::before {
  content: "";
  position: absolute;
  left: 0;
  top: 11px;
  width: 7px;
  height: 1px;
  background-color: var(--accent);
}

.ranking-misread-section {
  padding: 34px 0 20px;
}

.misread-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 20px;
  margin-top: 20px;
}

.misread-card {
  padding: 20px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background-color: #ffffff;
}

.misread-title {
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 10px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--line);
}

.misread-text {
  font-size: 14px;
  color: var(--muted);
  margin-bottom: 10px;
}

.misread-advice {
  font-size: 13.5px;
  color: var(--accent);
}

/* ============ guide page ============ */

.guide-steps .step-body {
  min-width: 0;
}

.guide-figure {
  margin-top: 30px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  background-color: var(--paper-soft);
}

.guide-figure img {
  width: 100%;
  height: 300px;
  object-fit: cover;
  aspect-ratio: 16 / 6;
}

.figure-caption {
  padding: 10px 16px;
  font-size: 12.5px;
  color: var(--muted);
  border-top: 1px solid var(--line);
}

.guide-terms {
  padding: 34px 0;
  border-top: 1px solid var(--line);
}

.guide-boundary {
  padding: 34px 0;
  border-top: 1px solid var(--line);
}

.boundary-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px 24px;
  margin-bottom: 24px;
}

.boundary-item {
  position: relative;
  padding-left: 18px;
  font-size: 14.5px;
  color: #3d3d3d;
}

.boundary-item::before {
  content: "";
  position: absolute;
  left: 0;
  top: 12px;
  width: 9px;
  height: 1px;
  background-color: var(--accent);
}

/* ============ special page ============ */

.special-layout {
  display: block;
}

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

.special-intro {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 440px);
  gap: 40px;
  align-items: start;
  padding-bottom: 34px;
  border-bottom: 1px solid var(--line);
}

.special-intro-text {
  min-width: 0;
}

.special-intro-lead {
  font-size: 16px;
  color: #3d3d3d;
  margin: 12px 0 14px;
}

.special-intro-text p {
  font-size: 15px;
  color: var(--muted);
  margin-bottom: 16px;
}

.special-points {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.special-point {
  position: relative;
  padding-left: 18px;
  font-size: 14px;
  color: var(--muted);
}

.special-point::before {
  content: "";
  position: absolute;
  left: 0;
  top: 11px;
  width: 8px;
  height: 1px;
  background-color: var(--accent);
}

.special-hero {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  background-color: var(--paper-soft);
}

.special-hero img {
  width: 100%;
  height: 340px;
  object-fit: cover;
  aspect-ratio: 4 / 3;
}

.special-hero-caption {
  padding: 10px 16px;
  font-size: 12.5px;
  color: var(--muted);
  border-top: 1px solid var(--line);
}

.special-items {
  padding: 34px 0;
  border-bottom: 1px solid var(--line);
}

.special-card-list {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 20px;
  margin-top: 20px;
}

.special-card {
  display: block;
}

.special-card-link {
  display: flex;
  flex-direction: column;
  gap: 6px;
  height: 100%;
  padding: 12px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background-color: #ffffff;
  transition: border-color 0.18s ease, transform 0.18s ease;
}

.special-card-link:hover,
.special-card-link:focus-visible {
  border-color: var(--accent);
  transform: translateY(-2px);
}

.special-card-media {
  border-radius: var(--radius-sm);
  overflow: hidden;
  background-color: var(--paper-soft);
}

.special-card-media img {
  width: 100%;
  height: 190px;
  object-fit: cover;
  aspect-ratio: 3 / 4;
}

.special-card-title {
  font-size: 15.5px;
  font-weight: 700;
  line-height: 1.4;
}

.special-card-tag {
  font-size: 12.5px;
  color: var(--accent);
}

.special-card-state {
  font-size: 12.5px;
  color: var(--muted);
}

.special-more {
  padding: 34px 0;
  border-bottom: 1px solid var(--line);
}

.special-more-list {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
  margin-top: 18px;
}

.special-more-item {
  display: block;
}

.special-more-link {
  display: flex;
  flex-direction: column;
  gap: 4px;
  min-height: 76px;
  padding: 16px 18px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background-color: #ffffff;
  transition: border-color 0.18s ease;
}

.special-more-link:hover,
.special-more-link:focus-visible {
  border-color: var(--accent);
}

.special-more-title {
  font-family: var(--font-narrow);
  font-size: 16px;
  font-weight: 700;
}

.special-more-desc {
  font-size: 13px;
  color: var(--muted);
}

.special-source {
  padding: 34px 0 10px;
}

.special-source p {
  font-size: 14.5px;
  color: var(--muted);
  margin-top: 12px;
  max-width: 820px;
}

.special-source-links {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 20px;
}

/* ============ 404 ============ */

.error-main {
  max-width: var(--wrap-narrow);
}

.error-panel {
  padding: 60px 0 80px;
  text-align: center;
}

.error-code {
  font-family: var(--font-mono);
  font-size: 14px;
  letter-spacing: 0.24em;
  color: var(--accent);
  margin-bottom: 16px;
}

.error-title {
  font-size: 34px;
  font-weight: 700;
  margin-bottom: 14px;
}

.error-text {
  font-size: 15px;
  color: var(--muted);
  max-width: 560px;
  margin: 0 auto 28px;
}

.error-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px;
  margin-bottom: 40px;
}

.error-hints {
  max-width: 640px;
  margin: 0 auto;
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background-color: #ffffff;
  text-align: left;
}

.error-hints-title {
  font-size: 17px;
  font-weight: 700;
  margin-bottom: 14px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--line);
}

.error-hints-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px 20px;
}

.error-hint-item {
  font-size: 14px;
}

/* ============ responsive ============ */

@media (max-width: 900px) {
  .site-header-inner {
    padding: 14px 20px;
    flex-wrap: wrap;
  }

  .brand-slogan {
    display: none;
  }

  .nav-toggle {
    display: flex;
  }

  .site-nav {
    flex-basis: 100%;
    width: 100%;
  }

  .nav-list {
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 10px 0 6px;
    border-top: 1px solid var(--line);
  }

  .nav-list.is-open {
    display: flex;
  }

  .nav-link {
    min-height: 46px;
    padding: 12px 6px;
    border-radius: 0;
    border-bottom: 1px solid var(--line);
  }

  .nav-link.is-current {
    box-shadow: inset 3px 0 0 var(--accent);
    padding-left: 12px;
  }

  .site-main {
    padding: 0 20px 60px;
  }

  .magazine-hero {
    grid-template-columns: minmax(0, 1fr);
    gap: 28px;
    padding-bottom: 34px;
    margin-bottom: 34px;
  }

  .hero-title {
    font-size: 32px;
  }

  .hero-visual img {
    height: 300px;
    aspect-ratio: 16 / 10;
  }

  .subject-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .columns-grid {
    grid-template-columns: minmax(0, 1fr);
    gap: 30px;
  }

  .column-side {
    padding-left: 0;
    padding-top: 26px;
    border-left: 0;
    border-top: 1px solid var(--line);
  }

  .cover-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .step-list {
    grid-template-columns: minmax(0, 1fr);
  }

  .index-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-layout {
    grid-template-columns: minmax(0, 1fr);
    gap: 30px;
  }

  .ranking-field-section {
    grid-template-columns: minmax(0, 1fr);
    gap: 26px;
  }

  .record-field-grid {
    grid-template-columns: minmax(0, 1fr);
    gap: 26px;
  }

  .special-intro {
    grid-template-columns: minmax(0, 1fr);
    gap: 26px;
  }

  .special-hero img {
    height: 260px;
    aspect-ratio: 16 / 9;
  }

  .special-card-list,
  .special-more-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .misread-grid {
    grid-template-columns: minmax(0, 1fr);
  }

  .footer-columns {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 24px 20px;
  }

  .batch-status-grid {
    grid-template-columns: minmax(0, 1fr);
  }

  .group-cover img {
    height: 200px;
    aspect-ratio: 16 / 7;
  }
}

@media (max-width: 600px) {
  body.site-body {
    font-size: 15px;
  }

  .fact-bar-inner {
    padding: 8px 16px;
    font-size: 12px;
  }

  .site-header-inner {
    padding: 12px 16px;
  }

  .brand-mark {
    font-size: 19px;
  }

  .site-main {
    padding: 0 16px 48px;
  }

  .page-title {
    font-size: 24px;
  }

  .hero-title {
    font-size: 26px;
  }

  .hero-lead {
    font-size: 15px;
  }

  .hero-visual img {
    height: 220px;
  }

  .subject-grid {
    grid-template-columns: minmax(0, 1fr);
  }

  .cover-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 14px;
  }

  .cover-figure img {
    height: 160px;
  }

  .index-grid {
    grid-template-columns: minmax(0, 1fr);
  }

  .update-row {
    grid-template-columns: 62px minmax(0, 1fr);
    gap: 6px 10px;
  }

  .update-subject {
    grid-column: 2 / 3;
    text-align: left;
  }

  .update-state {
    grid-column: 2 / 3;
  }

  .entry-thumb {
    width: 74px;
    height: 98px;
    flex-basis: 74px;
  }

  .ranking-row {
    grid-template-columns: 32px 62px minmax(0, 1fr);
    gap: 12px;
  }

  .ranking-cover {
    width: 62px;
    height: 82px;
  }

  .ranking-index {
    font-size: 16px;
  }

  .special-card-list,
  .special-more-list {
    grid-template-columns: minmax(0, 1fr);
  }

  .special-card-media img {
    height: 220px;
  }

  .task-band-list,
  .task-list {
    grid-template-columns: minmax(0, 1fr);
  }

  .boundary-list {
    grid-template-columns: minmax(0, 1fr);
  }

  .error-hints-list {
    grid-template-columns: minmax(0, 1fr);
  }

  .error-title {
    font-size: 26px;
  }

  .footer-columns {
    grid-template-columns: minmax(0, 1fr);
  }

  .footer-copy {
    margin-left: 0;
  }

  .field-table thead th,
  .field-table tbody th,
  .field-table tbody td {
    padding: 10px 10px;
    font-size: 13.5px;
  }

  .field-table tbody th,
  .field-name {
    width: 40%;
  }

  .batch-head {
    position: static;
  }
}