:root {
  --color-bg: #ffffff;
  --color-surface: #f5f7f8;
  --color-heading: #16191d;
  --color-text: #2b2f36;
  --color-muted: #6b7280;
  --color-accent: #1f6f8b;
  --color-accent-dark: #17566d;
  --color-line: #d8dee3;
  --color-gold: #e8b04b;
  --color-notice-bg: #f2f7f9;
  --color-notice-line: #bcd6df;
  --font-sans: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Segoe UI", sans-serif;
  --font-mono: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
  --radius-sm: 4px;
  --radius-md: 6px;
  --radius-lg: 8px;
  --container: 1140px;
  --container-narrow: 760px;
  --shadow-card: 0 1px 2px rgba(22, 25, 29, 0.06);
  --shadow-hover: 0 4px 14px rgba(22, 25, 29, 0.1);
  --transition: 0.2s ease;
}

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

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

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

body {
  margin: 0;
  padding: 0;
  background-color: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
}

h1,
h2,
h3,
h4 {
  margin: 0;
  color: var(--color-heading);
  font-weight: 700;
  line-height: 1.4;
}

p {
  margin: 0;
}

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

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

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

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

figure {
  margin: 0;
}

button {
  font-family: inherit;
  font-size: inherit;
  cursor: pointer;
}

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

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

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 30;
  background-color: var(--color-bg);
  border-bottom: 1px solid var(--color-line);
}

.header-inner {
  display: flex;
  align-items: center;
  gap: 16px;
  max-width: var(--container);
  margin: 0 auto;
  padding: 12px 24px;
}

.site-nav {
  margin-left: auto;
}

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

.nav-link {
  display: inline-block;
  padding: 8px 12px;
  color: var(--color-text);
  font-size: 15px;
  line-height: 1.5;
  border-radius: var(--radius-sm);
  border-bottom: 2px solid transparent;
}

.nav-link:hover,
.nav-link:focus-visible {
  color: var(--color-accent);
  background-color: var(--color-surface);
  text-decoration: none;
}

.nav-link.is-current {
  color: var(--color-heading);
  font-weight: 600;
  border-bottom-color: var(--color-accent);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 4px;
  width: 44px;
  height: 44px;
  padding: 0 10px;
  margin-left: auto;
  background-color: var(--color-bg);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-sm);
}

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

.print-button {
  flex: none;
  padding: 8px 14px;
  color: var(--color-muted);
  font-size: 14px;
  background-color: var(--color-bg);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-sm);
  transition: color var(--transition), border-color var(--transition);
}

.print-button::before {
  content: "打印本页";
}

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

.site-main {
  display: block;
  max-width: var(--container);
  margin: 0 auto;
  padding: 32px 24px 56px;
}

.inner-main {
  max-width: var(--container);
}

.fact-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 24px;
  justify-content: space-between;
  max-width: var(--container);
  margin: 0 auto;
  padding: 10px 24px;
  background-color: var(--color-surface);
  border-bottom: 1px solid var(--color-line);
  font-size: 13px;
  color: var(--color-muted);
}

.fact-bar-note,
.fact-bar-site {
  margin: 0;
}

.fact-bar-role,
.fact-bar-page {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--color-accent);
}

.breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 20px;
  font-size: 14px;
  color: var(--color-muted);
}

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

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

.page-header {
  padding-bottom: 24px;
  margin-bottom: 32px;
  border-bottom: 1px solid var(--color-line);
}

.page-title {
  font-size: 32px;
  font-weight: 700;
  line-height: 1.35;
}

.page-description {
  max-width: 820px;
  margin-top: 12px;
  font-size: 17px;
  color: var(--color-muted);
}

.section {
  margin-bottom: 48px;
}

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

.section-title {
  position: relative;
  padding-left: 14px;
  font-size: 22px;
  font-weight: 700;
}

.section-title::before {
  content: "";
  position: absolute;
  top: 4px;
  left: 0;
  bottom: 4px;
  width: 4px;
  background-color: var(--color-accent);
  border-radius: 2px;
}

.section-desc,
.section-lead,
.section-intro {
  margin-top: 10px;
  max-width: 820px;
  font-size: 15px;
  color: var(--color-muted);
}

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

/* ==========================================================================
   components
   ========================================================================== */

.brand {
  display: inline-flex;
  flex-direction: column;
  line-height: 1.25;
  color: var(--color-heading);
  font-size: 20px;
  font-weight: 700;
  letter-spacing: 0;
}

.brand:hover,
.brand:focus-visible {
  color: var(--color-accent);
  text-decoration: none;
}

.brand-sub {
  font-size: 12px;
  font-weight: 400;
  color: var(--color-muted);
}

.notice-box {
  padding: 16px 18px;
  margin-bottom: 18px;
  background-color: var(--color-notice-bg);
  border-left: 4px solid var(--color-accent);
  border-radius: var(--radius-sm);
  font-size: 15px;
  color: var(--color-text);
}

.notice-text {
  margin: 0;
}

.field-table,
.rank-scope-table {
  font-size: 15px;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-md);
  overflow: hidden;
}

.field-table caption,
.rank-scope-table caption,
.table-caption {
  padding: 12px 16px;
  text-align: left;
  font-size: 14px;
  font-weight: 600;
  color: var(--color-heading);
  background-color: var(--color-surface);
  border-bottom: 1px solid var(--color-line);
}

.field-table th,
.field-table td,
.rank-scope-table th,
.rank-scope-table td {
  padding: 12px 16px;
  text-align: left;
  vertical-align: top;
  border-bottom: 1px solid var(--color-line);
}

.field-table thead th,
.rank-scope-table thead th {
  background-color: var(--color-surface);
  font-weight: 600;
  color: var(--color-heading);
  font-size: 14px;
}

.field-table tbody th {
  width: 30%;
  font-weight: 600;
  color: var(--color-heading);
  font-family: var(--font-mono);
  font-size: 13px;
}

.field-table tbody tr:last-child th,
.field-table tbody tr:last-child td,
.rank-scope-table tbody tr:last-child td {
  border-bottom: none;
}

.related-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 12px;
}

.related-item {
  padding: 14px 16px;
  background-color: var(--color-surface);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-md);
  transition: border-color var(--transition), box-shadow var(--transition);
}

.related-item:hover {
  border-color: var(--color-accent);
  box-shadow: var(--shadow-card);
}

.related-item a {
  font-weight: 600;
}

.related-desc {
  display: block;
  margin-top: 6px;
  font-size: 14px;
  color: var(--color-muted);
}

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

.archive-card {
  display: flex;
  flex-direction: column;
  padding: 12px;
  background-color: var(--color-bg);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-lg);
  transition: border-color var(--transition), box-shadow var(--transition);
}

.archive-card:hover {
  border-color: var(--color-accent);
  box-shadow: var(--shadow-hover);
}

.archive-cover {
  aspect-ratio: 3 / 4;
  overflow: hidden;
  border-radius: var(--radius-sm);
  background-color: var(--color-surface);
}

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

.archive-name,
.archive-title {
  margin-top: 12px;
  font-size: 16px;
  font-weight: 600;
  line-height: 1.5;
}

.archive-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 10px;
  margin-top: 8px;
  font-size: 13px;
  color: var(--color-muted);
}

.archive-genre {
  padding: 1px 8px;
  background-color: var(--color-surface);
  border: 1px solid var(--color-line);
  border-radius: 10px;
}

.archive-status {
  padding: 1px 8px;
  color: var(--color-accent);
  border: 1px solid var(--color-notice-line);
  border-radius: 10px;
}

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

.update-row {
  display: grid;
  grid-template-columns: 96px minmax(0, 1fr) 88px 72px;
  gap: 10px;
  align-items: baseline;
  padding: 10px 0;
  border-bottom: 1px dashed var(--color-line);
  font-size: 14px;
}

.update-row:last-child {
  border-bottom: none;
}

.update-date {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--color-muted);
}

.update-name,
.update-title {
  color: var(--color-heading);
  font-weight: 500;
  overflow-wrap: anywhere;
}

.update-genre {
  color: var(--color-muted);
}

.update-status {
  color: var(--color-accent);
  font-size: 13px;
  text-align: right;
}

.ranking-list {
  display: flex;
  flex-direction: column;
  counter-reset: rank;
}

.ranking-row {
  display: grid;
  grid-template-columns: 32px minmax(0, 1fr) minmax(0, 1.2fr);
  gap: 10px;
  align-items: baseline;
  padding: 10px 0;
  border-bottom: 1px dashed var(--color-line);
  font-size: 14px;
}

.ranking-row:last-child {
  border-bottom: none;
}

.ranking-index {
  font-family: var(--font-mono);
  font-weight: 700;
  color: var(--color-gold);
}

.ranking-name {
  color: var(--color-heading);
  font-weight: 500;
  overflow-wrap: anywhere;
}

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

.panel {
  padding: 20px;
  background-color: var(--color-surface);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-lg);
}

.panel-title {
  font-size: 18px;
  margin-bottom: 14px;
}

.panel-title-link {
  color: var(--color-heading);
}

.panel-more {
  display: inline-block;
  margin-top: 16px;
  font-size: 14px;
  font-weight: 600;
}

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

.summary-col {
  padding: 22px;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-lg);
}

.summary-title {
  font-size: 17px;
  margin-bottom: 14px;
}

.field-list {
  margin: 0;
}

.field-list dt {
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 600;
  color: var(--color-heading);
  margin-top: 12px;
}

.field-list dt:first-child {
  margin-top: 0;
}

.field-list dd {
  margin: 4px 0 0;
  font-size: 14px;
  color: var(--color-muted);
}

.summary-more {
  display: inline-block;
  margin-top: 18px;
  font-size: 14px;
  font-weight: 600;
}

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

.scope-item {
  position: relative;
  padding-left: 18px;
  font-size: 14px;
  color: var(--color-text);
}

.scope-item::before {
  content: "";
  position: absolute;
  top: 10px;
  left: 0;
  width: 6px;
  height: 6px;
  background-color: var(--color-accent);
  border-radius: 50%;
}

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

.index-item {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 16px;
  color: var(--color-text);
  background-color: var(--color-bg);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-md);
  transition: border-color var(--transition), box-shadow var(--transition);
}

.index-item:hover,
.index-item:focus-visible {
  color: var(--color-text);
  border-color: var(--color-accent);
  box-shadow: var(--shadow-card);
  text-decoration: none;
}

.index-name {
  font-weight: 600;
  color: var(--color-heading);
}

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

/* ==========================================================================
   pages
   ========================================================================== */

.hero-section {
  padding-bottom: 40px;
  margin-bottom: 48px;
  border-bottom: 1px solid var(--color-line);
}

.hero-inner {
  display: grid;
  grid-template-columns: 5fr 7fr;
  gap: 40px;
  align-items: start;
}

.hero-title {
  font-size: 34px;
  line-height: 1.3;
}

.hero-summary {
  margin-top: 16px;
  font-size: 17px;
  color: var(--color-text);
}

.hero-paths {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-top: 24px;
}

.hero-path {
  display: grid;
  grid-template-columns: 28px minmax(0, 1fr);
  gap: 10px;
  align-items: baseline;
  padding: 12px 14px;
  background-color: var(--color-surface);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-md);
  transition: border-color var(--transition);
}

.hero-path:hover {
  border-color: var(--color-accent);
}

.hero-path-index {
  font-family: var(--font-mono);
  font-weight: 700;
  color: var(--color-accent);
}

.hero-path-link {
  font-weight: 600;
}

.hero-path-name {
  display: block;
  color: var(--color-heading);
}

.hero-path-desc {
  display: block;
  margin-top: 2px;
  font-size: 13px;
  color: var(--color-muted);
}

.hero-media {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.hero-figure {
  overflow: hidden;
  border-radius: var(--radius-lg);
  background-color: var(--color-surface);
}

.hero-figure img {
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 9;
  object-fit: cover;
}

.hero-figure figcaption {
  padding: 10px 14px;
  font-size: 13px;
  color: var(--color-muted);
  border-top: 1px solid var(--color-line);
}

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

.cover-thumb {
  overflow: hidden;
  background-color: var(--color-bg);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-md);
}

.cover-thumb img {
  width: 100%;
  aspect-ratio: 3 / 4;
  object-fit: cover;
}

.cover-thumb figcaption {
  padding: 8px 12px;
  font-size: 13px;
  color: var(--color-muted);
  border-top: 1px solid var(--color-line);
}

.genre-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 18px;
}

.genre-card {
  display: flex;
  flex-direction: column;
  padding: 20px;
  background-color: var(--color-bg);
  border: 1px solid var(--color-line);
  border-top: 3px solid var(--color-accent);
  border-radius: var(--radius-md);
  transition: box-shadow var(--transition);
}

.genre-card:hover {
  box-shadow: var(--shadow-card);
}

.genre-name {
  font-size: 17px;
}

.genre-name a {
  color: var(--color-heading);
}

.genre-trait {
  margin-top: 10px;
  font-size: 14px;
  color: var(--color-muted);
}

.genre-count {
  margin-top: 12px;
  font-size: 13px;
  color: var(--color-text);
}

.genre-count-num {
  font-family: var(--font-mono);
  font-weight: 700;
  color: var(--color-accent);
}

.genre-entry {
  margin-top: auto;
  padding-top: 14px;
  font-size: 14px;
  font-weight: 600;
}

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

.genre-overview {
  margin-bottom: 44px;
}

.genre-archive {
  margin-bottom: 44px;
}

.genre-group {
  margin-bottom: 36px;
  padding-top: 4px;
}

.genre-group-head {
  margin-bottom: 18px;
}

.genre-group-title {
  font-size: 19px;
}

.genre-group-note {
  margin-top: 6px;
  font-size: 14px;
  color: var(--color-muted);
}

.genre-order {
  margin-bottom: 44px;
}

.order-steps {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
  counter-reset: step;
}

.order-step {
  position: relative;
  padding: 20px 20px 20px 56px;
  background-color: var(--color-surface);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-md);
}

.order-step::before {
  counter-increment: step;
  content: counter(step);
  position: absolute;
  top: 20px;
  left: 18px;
  width: 26px;
  height: 26px;
  line-height: 26px;
  text-align: center;
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 700;
  color: #ffffff;
  background-color: var(--color-accent);
  border-radius: 50%;
}

.order-step-title {
  font-size: 16px;
}

.order-step-desc {
  margin-top: 8px;
  font-size: 14px;
  color: var(--color-muted);
}

.field-glance {
  margin-bottom: 44px;
}

.layout-shell {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 28px;
  margin-bottom: 44px;
}

.updates-guide .section-title {
  margin-bottom: 10px;
}

.updates-guide .section-lead {
  margin-bottom: 20px;
}

.media-figure {
  margin-bottom: 22px;
  overflow: hidden;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-lg);
}

.media-figure img {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
}

.media-figure figcaption {
  padding: 10px 14px;
  font-size: 13px;
  color: var(--color-muted);
  border-top: 1px solid var(--color-line);
}

.updates-timeline {
  margin-bottom: 44px;
}

.update-group {
  padding: 18px 20px;
  margin-bottom: 18px;
  background-color: var(--color-bg);
  border: 1px solid var(--color-line);
  border-left: 3px solid var(--color-accent);
  border-radius: var(--radius-md);
}

.update-group-date {
  font-family: var(--font-mono);
  font-size: 16px;
  color: var(--color-heading);
}

.update-group-note {
  margin-top: 4px;
  margin-bottom: 10px;
  font-size: 13px;
  color: var(--color-muted);
}

.updates-distribution {
  margin-bottom: 44px;
}

.genre-count-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 18px;
}

.genre-count-name {
  font-size: 17px;
  margin-bottom: 8px;
}

.genre-count-value {
  font-family: var(--font-mono);
  font-size: 22px;
  font-weight: 700;
  color: var(--color-accent);
}

.genre-count-desc {
  margin-top: 8px;
  font-size: 14px;
  color: var(--color-muted);
}

.genre-count-link {
  display: inline-block;
  margin-top: 14px;
  font-size: 14px;
  font-weight: 600;
}

.rank-scope {
  margin-bottom: 44px;
}

.rank-scope .section-lead {
  margin-bottom: 20px;
}

.rank-figure {
  margin-top: 22px;
  overflow: hidden;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-lg);
}

.rank-figure img {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
}

.figure-caption {
  padding: 10px 14px;
  font-size: 13px;
  color: var(--color-muted);
  border-top: 1px solid var(--color-line);
}

.rank-list-section {
  margin-bottom: 44px;
}

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

.rank-item {
  display: grid;
  grid-template-columns: 44px 96px minmax(0, 1fr);
  gap: 16px;
  align-items: start;
  padding: 16px;
  background-color: var(--color-bg);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-md);
  transition: border-color var(--transition), box-shadow var(--transition);
}

.rank-item:hover {
  border-color: var(--color-accent);
  box-shadow: var(--shadow-card);
}

.rank-number {
  font-family: var(--font-mono);
  font-size: 20px;
  font-weight: 700;
  color: var(--color-gold);
  line-height: 1.2;
}

.rank-cover {
  aspect-ratio: 3 / 4;
  overflow: hidden;
  border-radius: var(--radius-sm);
  background-color: var(--color-surface);
}

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

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

.rank-name {
  font-size: 17px;
}

.rank-tag {
  margin-top: 6px;
  font-size: 13px;
  color: var(--color-accent);
}

.rank-note {
  margin-top: 8px;
  font-size: 14px;
  color: var(--color-muted);
}

.rank-tips {
  margin-bottom: 44px;
}

.tip-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
  counter-reset: tip;
}

.tip-item {
  position: relative;
  padding: 14px 16px 14px 52px;
  background-color: var(--color-surface);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-md);
  font-size: 15px;
}

.tip-item::before {
  counter-increment: tip;
  content: counter(tip);
  position: absolute;
  top: 14px;
  left: 16px;
  width: 24px;
  height: 24px;
  line-height: 24px;
  text-align: center;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  color: var(--color-accent);
  border: 1px solid var(--color-accent);
  border-radius: 50%;
}

.section-fields,
.section-scope,
.section-path,
.section-related {
  max-width: var(--container-narrow);
  margin-bottom: 44px;
}

.field-figure {
  margin-bottom: 24px;
  overflow: hidden;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-lg);
}

.field-figure img {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
}

.field-figure figcaption {
  padding: 10px 14px;
  font-size: 13px;
  color: var(--color-muted);
  border-top: 1px solid var(--color-line);
}

.field-item {
  border-bottom: 1px solid var(--color-line);
}

.field-item:first-of-type {
  border-top: 1px solid var(--color-line);
}

.field-summary {
  display: flex;
  flex-wrap: wrap;
  gap: 4px 12px;
  align-items: baseline;
  padding: 14px 30px 14px 4px;
  position: relative;
  cursor: pointer;
  list-style: none;
}

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

.field-summary::after {
  content: "+";
  position: absolute;
  top: 14px;
  right: 8px;
  font-family: var(--font-mono);
  font-size: 16px;
  color: var(--color-accent);
}

.field-item[open] .field-summary::after {
  content: "−";
}

.field-summary:hover .field-name {
  color: var(--color-accent);
}

.field-item .field-name {
  font-family: var(--font-mono);
  font-size: 15px;
  font-weight: 600;
  color: var(--color-heading);
}

.field-item .field-hint {
  font-size: 13px;
  color: var(--color-muted);
}

.field-body {
  padding: 0 4px 16px;
  font-size: 15px;
  color: var(--color-text);
}

.path-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.path-item {
  padding: 18px 20px 18px 56px;
  position: relative;
  background-color: var(--color-surface);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-md);
}

.path-step {
  position: absolute;
  top: 18px;
  left: 18px;
  width: 26px;
  height: 26px;
  line-height: 26px;
  text-align: center;
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 700;
  color: #ffffff;
  background-color: var(--color-accent);
  border-radius: 50%;
}

.path-title {
  font-size: 16px;
}

.path-text {
  margin-top: 8px;
  font-size: 14px;
  color: var(--color-muted);
}

.error-main {
  display: block;
}

.container.error-inner {
  max-width: 640px;
  margin: 0 auto;
  padding: 40px 0;
  text-align: center;
}

.error-code {
  font-family: var(--font-mono);
  font-size: 64px;
  font-weight: 700;
  line-height: 1;
  color: var(--color-line);
}

.error-title {
  margin-top: 16px;
  font-size: 28px;
}

.error-text {
  margin-top: 14px;
  font-size: 16px;
  color: var(--color-muted);
}

.error-text + .error-text {
  margin-top: 6px;
}

.error-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  justify-content: center;
  margin-top: 28px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 10px 22px;
  font-size: 15px;
  font-weight: 600;
  border-radius: var(--radius-md);
  border: 1px solid transparent;
  transition: background-color var(--transition), color var(--transition), border-color var(--transition);
}

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

.button-primary:hover,
.button-primary:focus-visible {
  color: #ffffff;
  background-color: var(--color-accent-dark);
  text-decoration: none;
}

.button-ghost {
  color: var(--color-accent);
  background-color: var(--color-bg);
  border-color: var(--color-accent);
}

.button-ghost:hover,
.button-ghost:focus-visible {
  color: #ffffff;
  background-color: var(--color-accent);
  text-decoration: none;
}

.error-links {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 20px;
  justify-content: center;
  margin-top: 30px;
  padding-top: 22px;
  border-top: 1px solid var(--color-line);
  font-size: 14px;
}

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

.site-footer {
  margin-top: 40px;
  background-color: var(--color-surface);
  border-top: 1px solid var(--color-line);
}

.footer-inner {
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr);
  gap: 32px;
  max-width: var(--container);
  margin: 0 auto;
  padding: 36px 24px 28px;
}

.footer-brand-name {
  font-size: 18px;
  font-weight: 700;
  color: var(--color-heading);
}

.footer-brand-desc {
  margin-top: 10px;
  font-size: 14px;
  color: var(--color-text);
}

.footer-brand-note {
  margin-top: 8px;
  font-size: 13px;
  color: var(--color-muted);
}

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

.footer-group-title {
  font-size: 15px;
  margin-bottom: 12px;
}

.footer-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.footer-list a {
  font-size: 14px;
  color: var(--color-muted);
}

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

.footer-bottom {
  max-width: var(--container);
  margin: 0 auto;
  padding: 16px 24px 24px;
  border-top: 1px solid var(--color-line);
}

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

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

@media (max-width: 960px) {
  .header-inner {
    flex-wrap: wrap;
    padding: 10px 20px;
  }

  .nav-toggle {
    display: flex;
  }

  .site-nav {
    order: 4;
    width: 100%;
    margin-left: 0;
  }

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

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

  .nav-link {
    display: block;
    padding: 12px 8px;
    font-size: 16px;
    border-bottom: none;
    border-left: 2px solid transparent;
    border-radius: 0;
  }

  .nav-link.is-current {
    border-left-color: var(--color-accent);
    border-bottom-color: transparent;
  }

  .print-button {
    order: 3;
  }

  .site-main {
    padding: 24px 20px 44px;
  }

  .fact-bar {
    padding: 10px 20px;
  }

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

  .hero-title {
    font-size: 28px;
  }

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

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

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

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

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

  .rank-item {
    grid-template-columns: 36px 80px minmax(0, 1fr);
    gap: 12px;
  }

  .footer-inner {
    grid-template-columns: minmax(0, 1fr);
    gap: 26px;
    padding: 30px 20px 24px;
  }

  .footer-bottom {
    padding: 14px 20px 22px;
  }
}

@media (max-width: 640px) {
  body {
    font-size: 15px;
  }

  .site-main {
    padding: 20px 16px 40px;
  }

  .fact-bar {
    flex-direction: column;
    gap: 4px;
    padding: 10px 16px;
  }

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

  .page-description {
    font-size: 15px;
  }

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

  .hero-summary {
    font-size: 16px;
  }

  .hero-covers {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 12px;
  }

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

  .index-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 10px;
  }

  .update-row {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    gap: 4px 10px;
  }

  .update-status {
    text-align: left;
  }

  .ranking-row {
    grid-template-columns: 28px minmax(0, 1fr);
  }

  .ranking-note {
    grid-column: 2;
  }

  .rank-item {
    grid-template-columns: 32px 72px minmax(0, 1fr);
    gap: 10px;
    padding: 12px;
  }

  .field-table tbody th {
    width: 38%;
  }

  .field-table th,
  .field-table td,
  .rank-scope-table th,
  .rank-scope-table td {
    padding: 10px 12px;
    font-size: 14px;
  }

  .footer-links {
    gap: 20px;
  }
}

@media print {
  .site-header,
  .fact-bar,
  .nav-toggle,
  .print-button,
  .breadcrumb,
  .site-footer,
  .error-actions {
    display: none;
  }

  .site-main {
    max-width: none;
    padding: 0;
  }

  .archive-card,
  .genre-card,
  .panel,
  .summary-col,
  .update-group,
  .rank-item,
  .path-item,
  .tip-item,
  .related-item {
    box-shadow: none;
    break-inside: avoid;
  }
}

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