:root {
  --page-bg: #f5f6f7;
  --surface: #ffffff;
  --surface-alt: #f0f2f4;
  --ink: #1f2328;
  --ink-soft: #5b6470;
  --line: #d8dde3;
  --line-strong: #c2c9d1;
  --accent: #2f6f5e;
  --accent-soft: #e7f0ed;
  --status: #b45309;
  --status-soft: #fbf1e5;
  --radius: 8px;
  --radius-sm: 6px;
  --shell: 1120px;
  --gap: 20px;
  --font-sans: "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Source Han Sans SC", "Noto Sans CJK SC", system-ui, sans-serif;
  --font-narrow: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Source Han Sans SC", system-ui, sans-serif;
}

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

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

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

body,
h1, h2, h3, h4,
p, figure, figcaption,
dl, dt, dd,
ul, ol, li,
table, caption, thead, tbody, th, td {
  margin: 0;
  padding: 0;
}

ul, ol {
  list-style: none;
}

.site-body {
  background-color: var(--page-bg);
  color: var(--ink);
  font-family: var(--font-sans);
  font-size: 15px;
  line-height: 1.75;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  overflow-wrap: break-word;
}

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

a {
  color: var(--accent);
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-thickness: 1px;
}

a:hover,
a:focus-visible {
  color: #235247;
  text-decoration-thickness: 2px;
}

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

h1, h2, h3, h4 {
  font-family: var(--font-narrow);
  font-weight: 700;
  line-height: 1.35;
  color: var(--ink);
}

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

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

/* ============================================================
   layout — 骨架容器
   ============================================================ */

.utility-bar {
  background-color: var(--surface-alt);
  border-bottom: 1px solid var(--line);
  font-size: 13px;
  color: var(--ink-soft);
}

.utility-inner {
  max-width: var(--shell);
  margin: 0 auto;
  padding: 6px 20px;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 8px 16px;
  min-height: 34px;
}

.utility-status {
  margin: 0;
  line-height: 1.5;
}

.utility-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
}

.utility-nav a {
  color: var(--ink-soft);
  text-decoration: none;
  line-height: 1.5;
  padding: 4px 0;
  min-height: 24px;
}

.utility-nav a:hover,
.utility-nav a:focus-visible {
  color: var(--accent);
  text-decoration: underline;
}

.site-header {
  background-color: var(--surface);
  border-bottom: 1px solid var(--line);
  position: relative;
  z-index: 20;
}

.header-inner {
  max-width: var(--shell);
  margin: 0 auto;
  padding: 12px 20px;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 10px 24px;
}

.brand {
  display: flex;
  flex-direction: column;
  gap: 2px;
  text-decoration: none;
  color: var(--ink);
  min-height: 44px;
  justify-content: center;
}

.brand-name {
  font-family: var(--font-narrow);
  font-size: 20px;
  font-weight: 700;
  line-height: 1.25;
}

.brand-tagline {
  font-size: 12px;
  color: var(--ink-soft);
  line-height: 1.4;
}

.brand:hover .brand-name,
.brand:focus-visible .brand-name {
  color: var(--accent);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 4px;
  width: 44px;
  height: 44px;
  padding: 10px;
  background-color: var(--surface);
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-sm);
  cursor: pointer;
}

.nav-toggle-bar {
  display: block;
  width: 100%;
  height: 2px;
  background-color: var(--ink);
}

.site-nav {
  display: flex;
  align-items: center;
}

.nav-list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 4px 8px;
}

.nav-list a {
  display: block;
  padding: 9px 12px;
  min-height: 44px;
  line-height: 26px;
  font-size: 14px;
  color: var(--ink);
  text-decoration: none;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
}

.nav-list a:hover,
.nav-list a:focus-visible {
  background-color: var(--surface-alt);
  border-color: var(--line);
  color: var(--accent);
}

.nav-list a.is-current {
  color: var(--accent);
  border-color: var(--accent);
  background-color: var(--accent-soft);
  font-weight: 700;
}

.site-main {
  flex: 1 1 auto;
  width: 100%;
}

.inner-main {
  max-width: var(--shell);
  margin: 0 auto;
  padding: 20px 20px 48px;
}

.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  color: var(--ink-soft);
  margin-bottom: 14px;
}

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

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

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

.breadcrumb-current {
  color: var(--ink);
  font-weight: 600;
}

.page-header {
  background-color: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 22px 24px;
  margin-bottom: 24px;
}

.page-title {
  font-size: 32px;
  line-height: 1.3;
  font-weight: 700;
  margin-bottom: 10px;
}

.page-description {
  font-size: 15px;
  line-height: 1.75;
  color: var(--ink-soft);
  max-width: 900px;
}

.page-lead {
  font-size: 14px;
  line-height: 1.75;
  color: var(--ink-soft);
  margin-top: 10px;
  padding-top: 10px;
  border-top: 1px dashed var(--line);
  max-width: 900px;
}

.site-footer {
  background-color: var(--surface);
  border-top: 1px solid var(--line);
  margin-top: auto;
}

.footer-inner {
  max-width: var(--shell);
  margin: 0 auto;
  padding: 28px 20px 20px;
}

.footer-groups {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 24px;
  padding-bottom: 22px;
  border-bottom: 1px solid var(--line);
}

.footer-group-title {
  font-size: 14px;
  font-weight: 700;
  color: var(--ink);
  margin-bottom: 10px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--line);
}

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

.footer-list a {
  font-size: 13px;
  color: var(--ink-soft);
  text-decoration: none;
  line-height: 1.6;
  display: inline-block;
  padding: 3px 0;
}

.footer-list a:hover,
.footer-list a:focus-visible {
  color: var(--accent);
  text-decoration: underline;
}

.footer-bottom {
  padding-top: 16px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.footer-about {
  font-size: 13px;
  line-height: 1.7;
  color: var(--ink-soft);
}

.footer-copy {
  font-size: 12px;
  line-height: 1.7;
  color: var(--ink-soft);
}

/* ============================================================
   components — 通用模块
   ============================================================ */

.section {
  background-color: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 22px 24px;
  margin-bottom: 20px;
}

.section-title {
  font-size: 22px;
  line-height: 1.4;
  margin-bottom: 10px;
}

.section-intro,
.section-desc,
.section-text {
  font-size: 15px;
  line-height: 1.75;
  color: var(--ink-soft);
}

.section-text + .section-text {
  margin-top: 12px;
}

.section-intro,
.section-desc {
  margin-bottom: 16px;
}

.section-note {
  margin-top: 14px;
  font-size: 13px;
  line-height: 1.7;
  color: var(--ink-soft);
  padding: 10px 12px;
  background-color: var(--surface-alt);
  border-left: 3px solid var(--accent);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
}

.section-tail {
  margin-top: 16px;
  font-size: 13px;
  line-height: 1.8;
  color: var(--ink-soft);
}

.data-table {
  font-size: 14px;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  overflow: hidden;
}

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

.data-table thead th {
  background-color: var(--surface-alt);
  color: var(--ink);
  font-weight: 700;
  text-align: left;
  padding: 10px 12px;
  border-bottom: 1px solid var(--line-strong);
  white-space: nowrap;
}

.data-table tbody th,
.data-table tbody td {
  padding: 10px 12px;
  border-bottom: 1px solid var(--line);
  vertical-align: top;
  line-height: 1.7;
}

.data-table tbody th {
  text-align: left;
  font-weight: 700;
  color: var(--ink);
  background-color: #fafbfc;
  white-space: nowrap;
}

.data-table tbody tr:last-child th,
.data-table tbody tr:last-child td {
  border-bottom: 0;
}

.data-table tbody tr:hover {
  background-color: #fafbfc;
}

.table-scroll {
  width: 100%;
  overflow-x: auto;
}

.table-scroll .data-table {
  min-width: 640px;
}

.step-list {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.step-item {
  display: flex;
  gap: 14px;
  align-items: flex-start;
  padding: 14px 16px;
  background-color: var(--surface-alt);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
}

.step-index {
  flex: 0 0 auto;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background-color: var(--accent);
  color: #ffffff;
  font-size: 13px;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  line-height: 1;
}

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

.step-title {
  font-size: 16px;
  line-height: 1.5;
  margin-bottom: 4px;
}

.step-text {
  font-size: 14px;
  line-height: 1.75;
  color: var(--ink-soft);
}

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

.summary-point {
  background-color: var(--surface-alt);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  padding: 14px 16px;
}

.summary-point-title {
  font-size: 16px;
  line-height: 1.5;
  margin-bottom: 6px;
}

.summary-point p {
  font-size: 14px;
  line-height: 1.75;
  color: var(--ink-soft);
}

/* ============================================================
   pages — 首页
   ============================================================ */

.home-main {
  width: 100%;
}

.home-hero {
  background-color: var(--surface);
  border-bottom: 1px solid var(--line);
}

.hero-inner {
  max-width: var(--shell);
  margin: 0 auto;
  padding: 32px 20px 36px;
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(0, 1fr);
  gap: 32px;
  align-items: start;
}

.hero-text {
  min-width: 0;
}

.hero-kicker {
  font-size: 13px;
  font-weight: 700;
  color: var(--accent);
  border-left: 3px solid var(--accent);
  padding-left: 10px;
  margin-bottom: 12px;
  line-height: 1.5;
}

.hero-title {
  font-size: 32px;
  line-height: 1.3;
  font-weight: 700;
  margin-bottom: 14px;
}

.hero-summary {
  font-size: 15px;
  line-height: 1.8;
  color: var(--ink-soft);
  margin-bottom: 20px;
}

.hero-paths {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
}

.hero-path {
  background-color: var(--surface-alt);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  padding: 12px 14px;
  transition: border-color 0.18s ease, background-color 0.18s ease;
}

.hero-path:hover,
.hero-path:focus-within {
  border-color: var(--accent);
  background-color: var(--accent-soft);
}

.hero-path-name {
  display: block;
  font-size: 15px;
  font-weight: 700;
  line-height: 1.5;
  margin-bottom: 4px;
}

.hero-path-name a {
  color: var(--ink);
  text-decoration: none;
}

.hero-path-name a:hover,
.hero-path-name a:focus-visible {
  color: var(--accent);
  text-decoration: underline;
}

.hero-path-desc {
  font-size: 13px;
  line-height: 1.65;
  color: var(--ink-soft);
}

.hero-side {
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.hero-figure {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  background-color: var(--surface-alt);
}

.hero-figure img {
  width: 100%;
  height: 240px;
  object-fit: cover;
}

.hero-caption {
  font-size: 12px;
  line-height: 1.6;
  color: var(--ink-soft);
  padding: 8px 12px;
  border-top: 1px solid var(--line);
  background-color: var(--surface);
}

.hero-chapters {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 14px 16px;
  background-color: var(--surface);
}

.hero-chapters-title {
  font-size: 15px;
  line-height: 1.5;
  margin-bottom: 10px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--line);
}

.hero-chapter-list {
  counter-reset: chapter;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.hero-chapter-list li {
  counter-increment: chapter;
  font-size: 14px;
  line-height: 1.7;
  color: var(--ink-soft);
  padding-left: 30px;
  position: relative;
}

.hero-chapter-list li::before {
  content: counter(chapter, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 0;
  font-size: 12px;
  font-weight: 700;
  color: var(--accent);
  line-height: 1.95;
}

.home-section {
  max-width: var(--shell);
  margin: 0 auto 20px;
  padding: 24px 20px;
}

.home-section .section-head {
  margin-bottom: 18px;
}

.section-head h2 {
  font-size: 22px;
  line-height: 1.4;
  margin-bottom: 6px;
}

.section-head .section-desc {
  margin-bottom: 0;
}

.genre-overview {
  padding-top: 32px;
}

.genre-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
}

.genre-card {
  background-color: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  transition: border-color 0.18s ease, background-color 0.18s ease;
}

.genre-card:hover,
.genre-card:focus-within {
  border-color: var(--accent);
  background-color: #fbfdfc;
}

.genre-card-title {
  font-size: 17px;
  line-height: 1.5;
}

.genre-card-scope {
  font-size: 13px;
  line-height: 1.7;
  color: var(--ink-soft);
}

.genre-card-trait {
  font-size: 13px;
  line-height: 1.7;
  color: var(--ink-soft);
  padding-top: 8px;
  border-top: 1px dashed var(--line);
}

.genre-card-link {
  margin-top: auto;
  font-size: 13px;
  font-weight: 700;
  text-decoration: none;
  color: var(--accent);
  padding: 8px 0 2px;
  display: inline-block;
}

.genre-card-link:hover,
.genre-card-link:focus-visible {
  text-decoration: underline;
}

.updates-layout,
.ranking-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(0, 1fr);
  gap: 24px;
  align-items: start;
}

.sub-title {
  font-size: 17px;
  line-height: 1.5;
  margin-bottom: 12px;
}

.updates-entries,
.updates-batches,
.ranking-list-wrap,
.fields-excerpt {
  min-width: 0;
}

.entry-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}

.entry-card {
  background-color: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 10px;
  display: flex;
  flex-direction: column;
  gap: 6px;
  transition: border-color 0.18s ease;
}

.entry-card:hover,
.entry-card:focus-within {
  border-color: var(--accent);
}

.entry-figure {
  border-radius: var(--radius-sm);
  overflow: hidden;
  background-color: var(--surface-alt);
}

.entry-figure img {
  width: 100%;
  height: 150px;
  object-fit: cover;
}

.entry-name {
  font-size: 14px;
  line-height: 1.5;
}

.entry-meta {
  font-size: 12px;
  line-height: 1.6;
  color: var(--ink-soft);
}

.entry-status {
  font-size: 12px;
  line-height: 1.6;
  color: var(--status);
  background-color: var(--status-soft);
  border-radius: var(--radius-sm);
  padding: 3px 8px;
  align-self: flex-start;
}

.batch-list {
  display: flex;
  flex-direction: column;
  gap: 0;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  overflow: hidden;
  background-color: var(--surface);
}

.batch-row {
  display: grid;
  grid-template-columns: 92px minmax(0, 1fr) 72px 96px;
  gap: 10px;
  align-items: center;
  padding: 10px 12px;
  border-bottom: 1px solid var(--line);
  font-size: 13px;
  line-height: 1.6;
}

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

.batch-row:hover {
  background-color: #fafbfc;
}

.batch-code {
  font-weight: 700;
  color: var(--accent);
  white-space: nowrap;
}

.batch-genre {
  color: var(--ink);
}

.batch-count {
  color: var(--ink-soft);
  white-space: nowrap;
}

.batch-time {
  color: var(--ink-soft);
  white-space: nowrap;
  text-align: right;
}

.batch-more,
.rank-more,
.fields-link {
  display: inline-block;
  margin-top: 12px;
  font-size: 13px;
  font-weight: 700;
  text-decoration: none;
  color: var(--accent);
  padding: 8px 0;
}

.batch-more:hover,
.batch-more:focus-visible,
.rank-more:hover,
.rank-more:focus-visible,
.fields-link:hover,
.fields-link:focus-visible {
  text-decoration: underline;
}

.rank-list {
  display: flex;
  flex-direction: column;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  overflow: hidden;
  background-color: var(--surface);
}

.rank-row {
  display: grid;
  grid-template-columns: 42px minmax(0, 1fr) 96px 116px;
  gap: 10px;
  align-items: center;
  padding: 10px 12px;
  border-bottom: 1px solid var(--line);
  font-size: 13px;
  line-height: 1.6;
}

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

.rank-row:hover {
  background-color: #fafbfc;
}

.rank-no {
  font-weight: 700;
  color: var(--accent);
  font-variant-numeric: tabular-nums;
}

.rank-name {
  font-weight: 700;
  color: var(--ink);
}

.rank-genre {
  color: var(--ink-soft);
  white-space: nowrap;
}

.rank-note {
  color: var(--ink-soft);
  text-align: right;
}

.fields-excerpt {
  background-color: var(--surface-alt);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 16px 18px;
}

.field-summary {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.field-summary dt {
  font-size: 14px;
  font-weight: 700;
  color: var(--ink);
  padding-top: 10px;
  border-top: 1px dashed var(--line);
}

.field-summary dt:first-of-type {
  padding-top: 0;
  border-top: 0;
}

.field-summary dd {
  font-size: 13px;
  line-height: 1.7;
  color: var(--ink-soft);
  margin: 2px 0 10px;
}

.reading-path {
  background-color: var(--surface);
}

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

.path-step {
  background-color: var(--surface-alt);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  padding: 16px;
}

.path-no {
  display: inline-block;
  font-size: 12px;
  font-weight: 700;
  color: #ffffff;
  background-color: var(--accent);
  border-radius: var(--radius-sm);
  padding: 2px 8px;
  margin-bottom: 8px;
  line-height: 1.6;
}

.path-title {
  font-size: 16px;
  line-height: 1.5;
  margin-bottom: 6px;
}

.path-desc {
  font-size: 14px;
  line-height: 1.75;
  color: var(--ink-soft);
}

.feedback-note {
  margin-top: 20px;
  padding: 16px 18px;
  background-color: var(--status-soft);
  border: 1px solid #efd9bd;
  border-radius: var(--radius);
}

.feedback-title {
  font-size: 16px;
  line-height: 1.5;
  margin-bottom: 6px;
  color: var(--status);
}

.feedback-desc {
  font-size: 14px;
  line-height: 1.75;
  color: var(--ink-soft);
}

.site-index {
  padding-bottom: 32px;
}

.index-columns {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 14px;
}

.index-col {
  background-color: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 14px 16px;
  transition: border-color 0.18s ease;
}

.index-col:hover,
.index-col:focus-within {
  border-color: var(--accent);
}

.index-col a {
  display: inline-block;
  font-size: 15px;
  font-weight: 700;
  line-height: 1.5;
  text-decoration: none;
  color: var(--ink);
  margin-bottom: 6px;
  padding: 2px 0;
}

.index-col a:hover,
.index-col a:focus-visible {
  color: var(--accent);
  text-decoration: underline;
}

.index-desc {
  font-size: 13px;
  line-height: 1.7;
  color: var(--ink-soft);
}

/* ============================================================
   pages — 题材分类
   ============================================================ */

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

.conclusion-item {
  background-color: var(--surface-alt);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  padding: 14px 16px;
}

.conclusion-title {
  font-size: 16px;
  line-height: 1.5;
  margin-bottom: 6px;
}

.conclusion-text {
  font-size: 14px;
  line-height: 1.75;
  color: var(--ink-soft);
}

.genre-matrix-table tbody th {
  white-space: nowrap;
}

.section-genre-directions .direction-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
}

.direction-card {
  background-color: var(--surface-alt);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 12px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  transition: border-color 0.18s ease, background-color 0.18s ease;
}

.direction-card:hover,
.direction-card:focus-within {
  border-color: var(--accent);
  background-color: #fbfdfc;
}

.direction-media {
  border-radius: var(--radius-sm);
  overflow: hidden;
  background-color: #e6e9ec;
}

.direction-media img {
  width: 100%;
  height: 160px;
  object-fit: cover;
}

.direction-name {
  font-size: 17px;
  line-height: 1.5;
}

.direction-meta {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.direction-meta dt {
  font-size: 12px;
  font-weight: 700;
  color: var(--accent);
  line-height: 1.6;
}

.direction-meta dd {
  font-size: 13px;
  line-height: 1.7;
  color: var(--ink-soft);
  margin-bottom: 6px;
}

.direction-link {
  margin-top: auto;
  font-size: 13px;
  font-weight: 700;
  text-decoration: none;
  color: var(--accent);
  padding: 6px 0 2px;
}

.direction-link:hover,
.direction-link:focus-visible {
  text-decoration: underline;
}

.title-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
}

.title-card {
  background-color: var(--surface-alt);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 10px;
  display: flex;
  flex-direction: column;
  gap: 6px;
  transition: border-color 0.18s ease;
}

.title-card:hover,
.title-card:focus-within {
  border-color: var(--accent);
}

.title-media {
  border-radius: var(--radius-sm);
  overflow: hidden;
  background-color: #e6e9ec;
}

.title-media img {
  width: 100%;
  height: 150px;
  object-fit: cover;
}

.title-name {
  font-size: 14px;
  line-height: 1.5;
}

.title-genre {
  font-size: 12px;
  line-height: 1.6;
  color: var(--ink-soft);
}

.next-links {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
}

.next-links li a {
  display: block;
  padding: 12px 14px;
  min-height: 44px;
  background-color: var(--surface-alt);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  font-size: 14px;
  font-weight: 700;
  text-decoration: none;
  color: var(--ink);
  line-height: 1.6;
  transition: border-color 0.18s ease, background-color 0.18s ease;
}

.next-links li a:hover,
.next-links li a:focus-visible {
  border-color: var(--accent);
  background-color: var(--accent-soft);
  color: var(--accent);
}

/* ============================================================
   pages — 最近更新
   ============================================================ */

.content-shell {
  display: block;
}

.batch-figure {
  margin-top: 16px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  background-color: var(--surface-alt);
}

.batch-figure img {
  width: 100%;
  height: 260px;
  object-fit: cover;
}

.batch-figure figcaption {
  font-size: 12px;
  line-height: 1.6;
  color: var(--ink-soft);
  padding: 8px 12px;
  border-top: 1px solid var(--line);
  background-color: var(--surface);
}

.batch-table .cell-batch {
  font-weight: 700;
  color: var(--accent);
  white-space: nowrap;
}

.field-table .cell-field {
  font-weight: 700;
  color: var(--ink);
  white-space: nowrap;
  width: 180px;
}

.section-related .related-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.related-item {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 6px 10px;
  padding: 12px 14px;
  background-color: var(--surface-alt);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
}

.related-item a {
  font-size: 14px;
  font-weight: 700;
  text-decoration: none;
  color: var(--accent);
}

.related-item a:hover,
.related-item a:focus-visible {
  text-decoration: underline;
}

.related-desc {
  font-size: 13px;
  line-height: 1.7;
  color: var(--ink-soft);
}

/* ============================================================
   pages — 人气位次
   ============================================================ */

.section-ranking-summary .summary-points {
  margin-top: 4px;
}

.media-figure {
  margin-bottom: 18px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  background-color: var(--surface-alt);
}

.media-figure img {
  width: 100%;
  height: 240px;
  object-fit: cover;
}

.media-figure figcaption {
  font-size: 12px;
  line-height: 1.6;
  color: var(--ink-soft);
  padding: 8px 12px;
  border-top: 1px solid var(--line);
  background-color: var(--surface);
}

.ranking-list {
  display: flex;
  flex-direction: column;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  overflow: hidden;
  background-color: var(--surface);
}

.ranking-row {
  display: grid;
  grid-template-columns: 48px minmax(0, 1fr) minmax(0, 1fr);
  gap: 12px;
  align-items: center;
  padding: 12px 14px;
  border-bottom: 1px solid var(--line);
}

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

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

.ranking-index {
  font-size: 15px;
  font-weight: 700;
  color: var(--accent);
  font-variant-numeric: tabular-nums;
}

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

.ranking-name {
  font-size: 15px;
  line-height: 1.5;
}

.ranking-genre {
  font-size: 12px;
  line-height: 1.6;
  color: var(--ink-soft);
}

.ranking-note {
  font-size: 13px;
  line-height: 1.7;
  color: var(--ink-soft);
  text-align: right;
}

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

.method-item {
  background-color: var(--surface-alt);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  padding: 14px 16px;
}

.method-term {
  font-size: 15px;
  font-weight: 700;
  color: var(--ink);
  margin-bottom: 6px;
  line-height: 1.5;
}

.method-desc {
  font-size: 14px;
  line-height: 1.75;
  color: var(--ink-soft);
}

.genre-link-list {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
}

.genre-link-item {
  background-color: var(--surface-alt);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  padding: 14px 16px;
}

.genre-link-title {
  font-size: 16px;
  line-height: 1.5;
  margin-bottom: 6px;
}

.genre-link-item p {
  font-size: 13px;
  line-height: 1.7;
  color: var(--ink-soft);
}

/* ============================================================
   pages — 条目字段说明
   ============================================================ */

.page-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 280px;
  gap: 24px;
  align-items: start;
}

.fields-section {
  background-color: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 22px 24px;
  margin-bottom: 20px;
}

.fields-section .section-title {
  font-size: 22px;
  line-height: 1.4;
  margin-bottom: 10px;
}

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

.fields-summary .summary-point {
  background-color: var(--surface-alt);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  padding: 14px 16px;
}

.point-title {
  font-size: 16px;
  line-height: 1.5;
  margin-bottom: 6px;
}

.fields-summary .summary-point p {
  font-size: 14px;
  line-height: 1.75;
  color: var(--ink-soft);
}

.fields-figure {
  margin: 0 0 20px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  background-color: var(--surface-alt);
}

.fields-figure img {
  width: 100%;
  height: 260px;
  object-fit: cover;
}

.fields-figure figcaption {
  font-size: 12px;
  line-height: 1.6;
  color: var(--ink-soft);
  padding: 8px 12px;
  border-top: 1px solid var(--line);
  background-color: var(--surface);
}

.fields-table {
  font-size: 14px;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  overflow: hidden;
}

.fields-table thead th {
  background-color: var(--surface-alt);
  font-weight: 700;
  text-align: left;
  padding: 10px 12px;
  border-bottom: 1px solid var(--line-strong);
  white-space: nowrap;
}

.fields-table tbody td {
  padding: 10px 12px;
  border-bottom: 1px solid var(--line);
  vertical-align: top;
  line-height: 1.7;
}

.fields-table tbody td:first-child {
  font-weight: 700;
  color: var(--ink);
  white-space: nowrap;
}

.fields-table tbody tr:last-child td {
  border-bottom: 0;
}

.fields-table tbody tr:hover {
  background-color: #fafbfc;
}

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

.boundary-item {
  background-color: var(--surface-alt);
  border: 1px solid var(--line);
  border-left: 3px solid var(--status);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  padding: 14px 16px;
}

.boundary-title {
  font-size: 15px;
  line-height: 1.5;
  margin-bottom: 6px;
}

.boundary-item p {
  font-size: 14px;
  line-height: 1.75;
  color: var(--ink-soft);
}

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

.fields-path .path-step {
  background-color: var(--surface-alt);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  padding: 16px;
}

.fields-path .step-index {
  display: inline-flex;
  width: 26px;
  height: 26px;
  border-radius: 50%;
  background-color: var(--accent);
  color: #ffffff;
  font-size: 13px;
  font-weight: 700;
  align-items: center;
  justify-content: center;
  margin-bottom: 8px;
  line-height: 1;
}

.fields-path .step-title {
  font-size: 16px;
  line-height: 1.5;
  margin-bottom: 6px;
}

.fields-path .path-step p {
  font-size: 14px;
  line-height: 1.75;
  color: var(--ink-soft);
}

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

.faq-item {
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background-color: var(--surface-alt);
  overflow: hidden;
}

.faq-question {
  font-size: 15px;
  font-weight: 700;
  line-height: 1.6;
  color: var(--ink);
  padding: 12px 14px;
  cursor: pointer;
  list-style: none;
  position: relative;
  padding-right: 40px;
}

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

.faq-question::after {
  content: "+";
  position: absolute;
  right: 14px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 18px;
  font-weight: 700;
  color: var(--accent);
  line-height: 1;
}

.faq-item[open] .faq-question::after {
  content: "−";
}

.faq-question:hover,
.faq-question:focus-visible {
  color: var(--accent);
}

.faq-answer {
  font-size: 14px;
  line-height: 1.8;
  color: var(--ink-soft);
  padding: 0 14px 14px;
  border-top: 1px solid var(--line);
  padding-top: 12px;
  background-color: var(--surface);
}

.fields-aside {
  background-color: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 18px 20px;
  position: sticky;
  top: 20px;
}

.aside-title {
  font-size: 17px;
  line-height: 1.5;
  margin-bottom: 8px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--line);
}

.aside-intro {
  font-size: 13px;
  line-height: 1.7;
  color: var(--ink-soft);
  margin-bottom: 12px;
}

.aside-links {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.aside-links li a {
  display: block;
  padding: 10px 12px;
  min-height: 44px;
  font-size: 14px;
  line-height: 1.6;
  text-decoration: none;
  color: var(--ink);
  background-color: var(--surface-alt);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  transition: border-color 0.18s ease, background-color 0.18s ease;
}

.aside-links li a:hover,
.aside-links li a:focus-visible {
  border-color: var(--accent);
  background-color: var(--accent-soft);
  color: var(--accent);
}

/* ============================================================
   pages — 404
   ============================================================ */

.error-main {
  max-width: var(--shell);
  margin: 0 auto;
  padding: 40px 20px 56px;
  width: 100%;
}

.error-panel {
  background-color: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 32px 28px;
  max-width: 720px;
}

.error-code {
  font-size: 13px;
  font-weight: 700;
  color: var(--status);
  background-color: var(--status-soft);
  border-radius: var(--radius-sm);
  padding: 3px 10px;
  display: inline-block;
  margin-bottom: 12px;
  line-height: 1.6;
}

.error-panel h1 {
  font-size: 32px;
  line-height: 1.3;
  margin-bottom: 12px;
}

.error-text {
  font-size: 15px;
  line-height: 1.8;
  color: var(--ink-soft);
  margin-bottom: 18px;
}

.error-hints {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 22px;
}

.error-hints li {
  font-size: 14px;
  line-height: 1.75;
  color: var(--ink-soft);
  padding-left: 18px;
  position: relative;
}

.error-hints li::before {
  content: "";
  position: absolute;
  left: 2px;
  top: 10px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background-color: var(--accent);
}

.error-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 18px;
}

.error-actions a {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 10px 18px;
  font-size: 14px;
  font-weight: 700;
  text-decoration: none;
  border-radius: var(--radius-sm);
  border: 1px solid var(--line-strong);
  color: var(--ink);
  background-color: var(--surface-alt);
  transition: border-color 0.18s ease, background-color 0.18s ease;
}

.error-actions a:hover,
.error-actions a:focus-visible {
  border-color: var(--accent);
  background-color: var(--accent-soft);
  color: var(--accent);
}

.error-actions .error-action-primary {
  background-color: var(--accent);
  border-color: var(--accent);
  color: #ffffff;
}

.error-actions .error-action-primary:hover,
.error-actions .error-action-primary:focus-visible {
  background-color: #235247;
  border-color: #235247;
  color: #ffffff;
}

.error-note {
  font-size: 13px;
  line-height: 1.7;
  color: var(--ink-soft);
  padding-top: 14px;
  border-top: 1px dashed var(--line);
}

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

@media (max-width: 1024px) {
  .genre-grid,
  .index-columns,
  .title-grid,
  .genre-link-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

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

  .page-layout {
    grid-template-columns: minmax(0, 1fr) 240px;
  }

  .hero-inner {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    gap: 24px;
  }
}

@media (max-width: 900px) {
  .updates-layout,
  .ranking-layout {
    grid-template-columns: minmax(0, 1fr);
  }

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

  .fields-aside {
    position: static;
  }

  .summary-points,
  .fields-summary .summary-points,
  .section-genre-conclusion .conclusion-list,
  .path-steps,
  .fields-path .path-steps,
  .method-list,
  .boundary-list,
  .section-related .related-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

@media (max-width: 768px) {
  .nav-toggle {
    display: flex;
  }

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

  .nav-list {
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 4px;
    width: 100%;
    padding: 8px 0 4px;
    border-top: 1px solid var(--line);
    margin-top: 4px;
  }

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

  .nav-list a {
    padding: 11px 12px;
    min-height: 44px;
    border: 1px solid var(--line);
    background-color: var(--surface-alt);
  }

  .hero-inner {
    grid-template-columns: minmax(0, 1fr);
    gap: 24px;
    padding: 24px 20px 28px;
  }

  .hero-title,
  .page-title,
  .error-panel h1 {
    font-size: 26px;
  }

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

  .genre-grid,
  .index-columns,
  .title-grid,
  .genre-link-list,
  .direction-grid,
  .next-links {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

  .summary-points,
  .fields-summary .summary-points,
  .section-genre-conclusion .conclusion-list,
  .path-steps,
  .fields-path .path-steps,
  .method-list,
  .boundary-list,
  .section-related .related-list {
    grid-template-columns: minmax(0, 1fr);
  }

  .batch-row {
    grid-template-columns: 84px minmax(0, 1fr);
    row-gap: 4px;
  }

  .batch-count,
  .batch-time {
    grid-column: 2;
    text-align: left;
  }

  .rank-row {
    grid-template-columns: 38px minmax(0, 1fr);
    row-gap: 4px;
  }

  .rank-genre,
  .rank-note {
    grid-column: 2;
    text-align: left;
  }

  .ranking-row {
    grid-template-columns: 40px minmax(0, 1fr);
    row-gap: 4px;
  }

  .ranking-note {
    grid-column: 2;
    text-align: left;
  }

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

  .hero-figure img,
  .media-figure img,
  .batch-figure img,
  .fields-figure img {
    height: 200px;
  }
}

@media (max-width: 480px) {
  .utility-inner,
  .header-inner,
  .inner-main,
  .home-section,
  .hero-inner,
  .footer-inner,
  .error-main {
    padding-left: 14px;
    padding-right: 14px;
  }

  .page-header,
  .section,
  .fields-section {
    padding: 18px 16px;
  }

  .hero-title,
  .page-title,
  .error-panel h1 {
    font-size: 22px;
  }

  .hero-paths,
  .genre-grid,
  .index-columns,
  .title-grid,
  .genre-link-list,
  .direction-grid,
  .entry-grid,
  .next-links,
  .footer-groups {
    grid-template-columns: minmax(0, 1fr);
  }

  .hero-figure img,
  .media-figure img,
  .batch-figure img,
  .fields-figure img {
    height: 180px;
  }

  .entry-figure img,
  .title-media img,
  .direction-media img {
    height: 170px;
  }

  .error-panel {
    padding: 24px 18px;
  }

  .error-actions a {
    width: 100%;
    justify-content: center;
  }
}

@media (prefers-reduced-motion: reduce) {
  * {
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
  }
}