:root {
  --paper: #f5f6fa;
  --ink: #1b2033;
  --ink-soft: #4a5169;
  --ink-mute: #6b7288;
  --brand: #4b3fd6;
  --brand-soft: #eceafc;
  --hot: #ff5a3c;
  --hot-soft: #ffede9;
  --done: #12a594;
  --done-soft: #e4f6f3;
  --line: #e2e5ef;
  --card: #ffffff;
  --radius: 6px;
  --radius-sm: 4px;
  --shadow: 0 1px 2px rgba(27, 32, 51, 0.05);
  --wrap: 1120px;
  --narrow: 760px;
  --font: "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", "Source Han Sans SC", "Noto Sans CJK SC", system-ui, -apple-system, "Segoe UI", sans-serif;
  --mono: "SFMono-Regular", "JetBrains Mono", Consolas, "Liberation Mono", Menlo, monospace;
}

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

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

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

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

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

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

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

h1,
h2,
h3,
h4 {
  margin: 0;
  color: var(--ink);
  line-height: 1.4;
}

h1 {
  font-size: 32px;
  font-weight: 700;
}

h2 {
  font-size: 22px;
  font-weight: 700;
}

h3 {
  font-size: 17px;
  font-weight: 600;
}

h4 {
  font-size: 15px;
  font-weight: 600;
}

p {
  margin: 0 0 14px;
  color: var(--ink-soft);
}

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

figure {
  margin: 0;
}

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

button {
  font: inherit;
  color: inherit;
  cursor: pointer;
}

.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;
}

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

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

.site-body {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  background: var(--paper);
}

.site-main {
  flex: 1 1 auto;
  width: 100%;
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 0 24px 56px;
}

.inner-main {
  padding-top: 20px;
}

.site-inner {
  width: 100%;
  max-width: var(--wrap);
  margin: 0 auto;
}

.section {
  margin-top: 44px;
}

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

.section-title {
  position: relative;
  padding-left: 14px;
  margin-bottom: 10px;
  font-size: 22px;
  font-weight: 700;
}

.section-title::before {
  content: "";
  position: absolute;
  left: 0;
  top: 6px;
  bottom: 6px;
  width: 4px;
  border-radius: 2px;
  background: var(--brand);
}

.section-desc,
.section-lead,
.section-intro {
  max-width: 46em;
  margin: 0 0 4px;
  color: var(--ink-mute);
  font-size: 15px;
}

.section-foot {
  margin: 14px 0 0;
  font-size: 14px;
}

.text-link {
  display: inline-block;
  font-size: 14px;
  font-weight: 600;
  color: var(--brand);
}

.text-link::after {
  content: " →";
  font-weight: 400;
}

.page-layout {
  display: grid;
  gap: 32px;
  align-items: start;
}

.page-header {
  margin: 0 0 16px;
}

.page-title {
  margin: 0;
  font-size: 32px;
  font-weight: 700;
  color: var(--ink);
}

.page-head {
  margin: 0 0 26px;
}

.page-lead {
  max-width: 46em;
  margin: 0 0 12px;
  color: var(--ink-soft);
  font-size: 16px;
}

.page-tags,
.page-tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0;
}

.page-tags li,
.page-tag-list li {
  display: flex;
}

.breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  margin: 0 0 14px;
  font-size: 13px;
  color: var(--ink-mute);
}

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

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

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

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

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

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0 22px;
  border: 1px solid transparent;
  border-radius: var(--radius);
  font-size: 15px;
  font-weight: 600;
  transition: background-color 0.18s ease, border-color 0.18s ease, color 0.18s ease;
}

.btn:hover {
  text-decoration: none;
}

.btn-primary {
  background: var(--brand);
  color: #fff;
}

.btn-primary:hover {
  background: #3f34bb;
}

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

.btn-ghost:hover {
  border-color: var(--brand);
  color: var(--brand);
}

.chip {
  display: inline-flex;
  align-items: center;
  min-height: 32px;
  padding: 3px 14px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--card);
  color: var(--ink-soft);
  font-size: 13px;
  line-height: 1.5;
  transition: border-color 0.18s ease, color 0.18s ease, background-color 0.18s ease;
}

.chip:hover {
  border-color: var(--brand);
  color: var(--brand);
  text-decoration: none;
}

.chip-sm {
  min-height: 24px;
  padding: 1px 10px;
  font-size: 12px;
  background: var(--brand-soft);
  border-color: transparent;
  color: var(--brand);
}

.tag-pill {
  display: inline-flex;
  align-items: center;
  min-height: 30px;
  padding: 2px 13px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--card);
  color: var(--ink-soft);
  font-size: 13px;
  line-height: 1.5;
}

.tag-pill:hover {
  border-color: var(--brand);
  color: var(--brand);
  text-decoration: none;
}

.tag-pill--hot {
  background: var(--hot-soft);
  border-color: transparent;
  color: #c9351c;
}

.tag-pill--done {
  background: var(--done-soft);
  border-color: transparent;
  color: #0b7d70;
}

.genre-pill {
  display: inline-flex;
  align-items: center;
  min-height: 34px;
  padding: 3px 16px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--card);
  color: var(--ink-soft);
  font-size: 14px;
  line-height: 1.5;
}

.genre-pill:hover {
  border-color: var(--brand);
  background: var(--brand-soft);
  color: var(--brand);
  text-decoration: none;
}

.status,
.status-badge {
  display: inline-flex;
  align-items: center;
  padding: 1px 9px;
  border-radius: var(--radius-sm);
  font-size: 12px;
  font-weight: 700;
  line-height: 1.7;
  white-space: nowrap;
}

.status-ongoing,
.status-badge--hot {
  background: var(--hot-soft);
  color: #c9351c;
}

.status-done,
.status-badge--done {
  background: var(--done-soft);
  color: #0b7d70;
}

.status-badge {
  border: 1px solid transparent;
}

.table-scroll,
.table-wrap {
  overflow-x: auto;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--card);
}

.data-table {
  width: 100%;
  min-width: 560px;
  font-size: 14px;
}

.data-table caption,
.table-caption {
  padding: 12px 16px 0;
  color: var(--ink-mute);
  font-size: 13px;
  text-align: left;
}

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

.data-table thead th {
  background: #fafbff;
  color: var(--ink);
  font-size: 13px;
  font-weight: 700;
  white-space: nowrap;
}

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

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

.cell-index,
.cell-rank,
.cell-num,
.cell-mono,
.cell-range {
  font-family: var(--mono);
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
}

.cell-index,
.cell-rank {
  color: var(--brand);
  font-weight: 700;
  width: 64px;
}

.cell-title {
  color: var(--ink);
  font-weight: 600;
}

.cell-num,
.cell-range {
  color: var(--ink-mute);
  font-size: 13px;
}

.media-figure,
.cover-media,
.cover-figure,
.genre-visual-item,
.side-figure,
.figure {
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--card);
}

.media-figure img,
.cover-media img,
.cover-figure img,
.genre-visual-item img,
.side-figure img,
.figure img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.media-figure figcaption,
.cover-figure figcaption,
.genre-visual-item figcaption,
.side-figure figcaption,
.figure-caption {
  padding: 10px 14px;
  color: var(--ink-mute);
  font-size: 13px;
  line-height: 1.6;
}

.figure-wide {
  margin: 0 0 20px;
}

.figure-wide img {
  aspect-ratio: 16 / 8;
}

.prose p {
  max-width: 42em;
}

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  background: var(--card);
  border-bottom: 1px solid var(--line);
}

.header-inner {
  display: flex;
  align-items: center;
  gap: 24px;
  width: 100%;
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 12px 24px;
}

.brand {
  display: flex;
  flex-direction: column;
  gap: 2px;
  flex: 0 0 auto;
}

.brand:hover {
  text-decoration: none;
}

.brand-name {
  font-size: 19px;
  font-weight: 700;
  color: var(--ink);
  line-height: 1.3;
}

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

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

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

.nav-link {
  display: inline-flex;
  align-items: center;
  min-height: 40px;
  padding: 0 12px;
  border-radius: var(--radius-sm);
  color: var(--ink-soft);
  font-size: 15px;
  white-space: nowrap;
}

.nav-link:hover {
  background: var(--brand-soft);
  color: var(--brand);
  text-decoration: none;
}

.nav-link.is-current {
  color: var(--brand);
  font-weight: 600;
  box-shadow: inset 0 -2px 0 var(--brand);
  border-radius: 0;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  margin-left: auto;
  padding: 0 10px;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
}

.nav-toggle-bar {
  display: block;
  height: 2px;
  border-radius: 1px;
  background: var(--ink);
}

.mobile-nav {
  border-top: 1px solid var(--line);
  background: var(--card);
}

.mobile-nav[hidden] {
  display: none;
}

.mobile-nav-list {
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 8px 24px 14px;
}

.mobile-nav-list a {
  display: flex;
  align-items: center;
  min-height: 44px;
  padding: 0 4px;
  border-bottom: 1px solid var(--line);
  color: var(--ink-soft);
  font-size: 15px;
}

.mobile-nav-list li:last-child a {
  border-bottom: 0;
}

.mobile-nav-list a:hover {
  color: var(--brand);
  text-decoration: none;
}

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

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

.footer-inner {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 32px;
  width: 100%;
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 40px 24px 28px;
}

.footer-brand {
  margin: 0 0 4px;
  font-size: 18px;
  font-weight: 700;
  color: var(--ink);
}

.footer-slogan {
  margin: 0 0 10px;
  color: var(--brand);
  font-size: 14px;
  font-weight: 600;
}

.footer-desc {
  max-width: 34em;
  margin: 0;
  color: var(--ink-mute);
  font-size: 14px;
}

.footer-title {
  margin: 0 0 12px;
  font-size: 15px;
  font-weight: 700;
  color: var(--ink);
}

.footer-list li + li {
  margin-top: 8px;
}

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

.footer-list a:hover {
  color: var(--brand);
}

.footer-bottom {
  border-top: 1px solid var(--line);
}

.copyright {
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 16px 24px;
  color: var(--ink-mute);
  font-size: 13px;
}

/* ============ pages: index ============ */

.hero {
  padding: 40px 0 8px;
}

.hero-inner {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
  gap: 40px;
  align-items: center;
}

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

.hero-eyebrow {
  display: inline-block;
  margin: 0 0 12px;
  padding: 3px 12px;
  border-radius: 999px;
  background: var(--brand-soft);
  color: var(--brand);
  font-size: 13px;
  font-weight: 600;
}

.hero-content h1 {
  margin: 0 0 14px;
  font-size: 32px;
  font-weight: 700;
}

.hero-lead {
  max-width: 40em;
  margin: 0 0 22px;
  color: var(--ink-soft);
  font-size: 16px;
}

.hero-steps {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 20px;
  margin: 0 0 26px;
}

.hero-step {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  color: var(--ink-soft);
}

.step-index {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex: 0 0 auto;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: var(--brand);
  color: #fff;
  font-family: var(--mono);
  font-size: 12px;
  font-weight: 700;
}

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

.hero-media {
  min-width: 0;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--card);
}

.hero-media img {
  display: block;
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
}

.hero-media figcaption {
  padding: 10px 14px;
  color: var(--ink-mute);
  font-size: 13px;
}

.genre-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 26px;
}

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

.cover-card {
  display: flex;
  flex-direction: column;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--card);
  box-shadow: var(--shadow);
  transition: transform 0.18s ease, border-color 0.18s ease;
}

.cover-card:hover {
  transform: translateY(-2px);
  border-color: #c8cee4;
}

.cover-media img {
  aspect-ratio: 3 / 4;
}

.cover-body {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 14px;
}

.cover-title {
  font-size: 16px;
  font-weight: 600;
}

.cover-title a {
  color: var(--ink);
}

.cover-title a:hover {
  color: var(--brand);
}

.cover-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin: 0;
}

.cover-note {
  margin: 0;
  color: var(--ink-mute);
  font-size: 13px;
  line-height: 1.65;
}

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

.rank-block {
  padding: 20px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--card);
}

.rank-title {
  margin: 0 0 6px;
  font-size: 17px;
}

.rank-desc {
  margin: 0 0 14px;
  color: var(--ink-mute);
  font-size: 13px;
}

.rank-list {
  border-top: 1px solid var(--line);
}

.rank-item {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 12px 0;
  border-bottom: 1px solid var(--line);
}

.rank-pos {
  flex: 0 0 auto;
  width: 22px;
  font-family: var(--mono);
  font-size: 13px;
  font-weight: 700;
  color: var(--brand);
}

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

.rank-name {
  display: block;
  margin-bottom: 2px;
  color: var(--ink);
  font-size: 15px;
  font-weight: 600;
}

.rank-note {
  margin: 0;
  color: var(--ink-mute);
  font-size: 13px;
}

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

.entry-card {
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--card);
}

.entry-title {
  margin: 0 0 8px;
  font-size: 17px;
}

.entry-desc {
  margin: 0 0 14px;
  color: var(--ink-mute);
  font-size: 14px;
}

.entry-list {
  margin: 0 0 16px;
}

.entry-list li {
  position: relative;
  padding-left: 16px;
  margin-bottom: 8px;
  color: var(--ink-soft);
  font-size: 14px;
  line-height: 1.7;
}

.entry-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 10px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--brand);
}

.index-grid {
  display: grid;
  grid-template-columns: repeat(7, minmax(0, 1fr));
  gap: 12px;
}

.index-link {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 52px;
  padding: 8px 10px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--card);
  color: var(--ink-soft);
  font-size: 14px;
  text-align: center;
}

.index-link:hover {
  border-color: var(--brand);
  background: var(--brand-soft);
  color: var(--brand);
  text-decoration: none;
}

/* ============ pages: catalog ============ */

.filter-note {
  margin: 0 0 28px;
  padding: 20px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--card);
}

.filter-note-body p:last-child {
  margin-bottom: 0;
}

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

.sidebar-left .catalog-sidebar,
.catalog-layout .catalog-sidebar {
  position: sticky;
  top: 84px;
  min-width: 0;
  padding: 20px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--card);
}

.sidebar-title {
  margin: 0 0 8px;
  font-size: 17px;
}

.sidebar-note {
  margin: 0 0 16px;
  color: var(--ink-mute);
  font-size: 13px;
}

.tag-group + .tag-group {
  margin-top: 18px;
  padding-top: 18px;
  border-top: 1px solid var(--line);
}

.tag-group-title {
  margin: 0 0 10px;
  color: var(--ink-mute);
  font-size: 13px;
  font-weight: 600;
}

.tag-group-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

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

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

.cover-wall .cover-card {
  padding-bottom: 14px;
}

.cover-wall .cover-title {
  margin: 12px 14px 8px;
  font-size: 16px;
}

.cover-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin: 0 14px 8px;
}

.cover-meta li {
  display: inline-flex;
  align-items: center;
  padding: 1px 9px;
  border-radius: var(--radius-sm);
  background: var(--brand-soft);
  color: var(--brand);
  font-size: 12px;
}

.cover-desc {
  margin: 0 14px 8px;
  color: var(--ink-mute);
  font-size: 13px;
  line-height: 1.65;
}

.cover-chapter {
  margin: 0 14px;
  color: var(--ink-soft);
  font-family: var(--mono);
  font-size: 12px;
}

.catalog-tips {
  margin-top: 40px;
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--card);
}

.tips-list {
  margin-top: 12px;
}

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

.tip-label {
  flex: 0 0 auto;
  padding: 2px 10px;
  border-radius: 999px;
  background: var(--brand-soft);
  color: var(--brand);
  font-size: 12px;
  font-weight: 600;
  line-height: 1.8;
}

.tip-row p {
  margin: 0;
  font-size: 14px;
}

/* ============ pages: genres ============ */

.page-hero {
  margin: 0 0 8px;
}

.genre-overview {
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--card);
}

.genre-index-list {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 4px 0 16px;
}

.genre-overview-note {
  margin: 0;
  color: var(--ink-mute);
  font-size: 14px;
}

.genre-overview-note a {
  margin-right: 12px;
}

.genre-block {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
  gap: 28px;
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--card);
}

.genre-block + .genre-block {
  margin-top: 18px;
}

.genre-block-info {
  min-width: 0;
}

.genre-block-title {
  margin: 0 0 10px;
  font-size: 18px;
}

.genre-block-desc {
  margin: 0 0 10px;
  color: var(--ink-soft);
  font-size: 14px;
}

.genre-block-meta {
  margin: 0;
  color: var(--ink-mute);
  font-size: 13px;
}

.genre-block-works {
  min-width: 0;
  padding-left: 24px;
  border-left: 1px solid var(--line);
}

.genre-block-subtitle {
  margin: 0 0 10px;
  color: var(--ink-mute);
  font-size: 13px;
  font-weight: 600;
}

.genre-work-list li + li {
  margin-top: 10px;
}

.genre-work-item {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 8px;
  font-size: 14px;
}

.genre-work-item a {
  font-weight: 600;
}

.genre-work-note {
  color: var(--ink-mute);
  font-size: 13px;
}

.genre-visual-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 20px;
  margin-top: 16px;
}

.genre-visual-item img {
  aspect-ratio: 16 / 9;
}

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

.advice-item {
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--card);
}

.advice-title {
  margin: 0 0 8px;
  font-size: 16px;
}

.advice-desc {
  margin: 0;
  color: var(--ink-mute);
  font-size: 14px;
}

.genre-glossary-map {
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--card);
}

/* ============ pages: ranking ============ */

.section-ranking-intro {
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--card);
}

.intro-body p:last-child {
  margin-bottom: 0;
}

.tier-legend {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 16px;
}

.tier-legend-item {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--ink-mute);
  font-size: 13px;
}

.tier-badge {
  display: inline-flex;
  align-items: center;
  padding: 2px 10px;
  border-radius: var(--radius-sm);
  font-size: 12px;
  font-weight: 700;
}

.tier-badge--hot {
  background: var(--hot-soft);
  color: #c9351c;
}

.tier-badge--done {
  background: var(--done-soft);
  color: #0b7d70;
}

.tier-badge--brand {
  background: var(--brand-soft);
  color: var(--brand);
}

.section-tier {
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--card);
}

.tier-head {
  margin-bottom: 14px;
}

.tier-note {
  margin: 0;
  color: var(--ink-mute);
  font-size: 13px;
}

.tier-media {
  margin-bottom: 18px;
}

.tier-media img {
  aspect-ratio: 16 / 7;
}

.section-tier .table-wrap {
  border-radius: var(--radius-sm);
}

.usage-list {
  margin-top: 16px;
}

.usage-row {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 24px;
  padding: 18px 0;
  border-top: 1px solid var(--line);
}

.usage-col {
  min-width: 0;
}

.usage-subtitle {
  margin: 0 0 6px;
  color: var(--ink-mute);
  font-size: 13px;
  font-weight: 700;
}

.usage-col--ranking .usage-subtitle {
  color: var(--brand);
}

.usage-col p {
  margin: 0;
  font-size: 14px;
}

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

.related-card {
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--card);
}

.related-card-title {
  margin: 0 0 8px;
  font-size: 16px;
}

.related-card p {
  margin: 0;
  color: var(--ink-mute);
  font-size: 14px;
}

/* ============ pages: updates ============ */

.page-updates .page-layout {
  grid-template-columns: minmax(0, 1fr) 260px;
  max-width: var(--narrow);
  margin: 0 auto;
}

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

.page-layout-aside {
  min-width: 0;
}

.aside-block {
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--card);
}

.aside-block + .aside-block {
  margin-top: 16px;
}

.aside-title {
  margin: 0 0 10px;
  font-size: 15px;
}

.aside-list li + li {
  margin-top: 8px;
}

.aside-list a {
  color: var(--ink-mute);
  font-size: 14px;
}

.aside-list a:hover {
  color: var(--brand);
}

.section-update-table .table-note {
  margin: 12px 0 0;
  font-size: 13px;
}

.section-adjust .prose {
  margin-top: 4px;
}

.section-rules .rule-list {
  margin-top: 14px;
}

.rule-item {
  padding: 16px 0;
  border-top: 1px solid var(--line);
}

.rule-title {
  margin: 0 0 6px;
  font-size: 16px;
}

.rule-text {
  margin: 0;
  color: var(--ink-mute);
  font-size: 14px;
}

.related-groups {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 24px;
  margin-top: 14px;
}

.related-group {
  min-width: 0;
}

.related-title {
  margin: 0 0 10px;
  color: var(--ink-mute);
  font-size: 13px;
  font-weight: 700;
}

.related-list li + li {
  margin-top: 8px;
}

.related-list a {
  font-size: 14px;
}

/* ============ pages: guide ============ */

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

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

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

.step-node {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--card);
}

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

.step-title {
  margin: 0 0 4px;
  font-size: 15px;
}

.step-text {
  margin: 0;
  color: var(--ink-mute);
  font-size: 14px;
}

.section-chapter .media-figure,
.section-filter .media-figure {
  margin: 16px 0 20px;
}

.section-chapter .media-figure img,
.section-filter .media-figure img {
  aspect-ratio: 16 / 8;
}

.step-table {
  min-width: 620px;
}

.method-list {
  margin-top: 4px;
}

.method-item {
  padding: 16px 0;
  border-top: 1px solid var(--line);
}

.method-title {
  margin: 0 0 6px;
  font-size: 16px;
}

.method-text {
  margin: 0;
  color: var(--ink-mute);
  font-size: 14px;
}

.tip-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
  margin-top: 16px;
}

.tip-card {
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--card);
}

.tip-title {
  margin: 0 0 8px;
  font-size: 16px;
}

.tip-text {
  margin: 0 0 10px;
  color: var(--ink-soft);
  font-size: 14px;
}

.tip-audience {
  margin: 0;
  color: var(--ink-mute);
  font-size: 13px;
}

.faq-list {
  margin-top: 14px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--card);
  overflow: hidden;
}

.faq-item + .faq-item {
  border-top: 1px solid var(--line);
}

.faq-question {
  position: relative;
  padding: 16px 44px 16px 18px;
  color: var(--ink);
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  list-style: none;
}

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

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

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

.faq-question:hover {
  color: var(--brand);
}

.faq-answer {
  padding: 0 18px 16px;
}

.faq-answer p {
  margin: 0;
  color: var(--ink-mute);
  font-size: 14px;
}

.sidebar-anchor {
  min-width: 0;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--card);
}

.anchor-list li + li {
  margin-top: 8px;
}

.anchor-list a {
  color: var(--ink-mute);
  font-size: 14px;
}

.anchor-list a:hover {
  color: var(--brand);
}

.sidebar-note {
  margin-top: 18px;
  padding-top: 16px;
  border-top: 1px solid var(--line);
}

.sidebar-note-title {
  margin: 0 0 10px;
  font-size: 14px;
}

.sidebar-link-list li + li {
  margin-top: 8px;
}

.sidebar-link-list a {
  color: var(--ink-mute);
  font-size: 13px;
}

.sidebar-link-list a:hover {
  color: var(--brand);
}

/* ============ pages: glossary ============ */

.page-glossary .layout-shell {
  grid-template-columns: minmax(0, 1fr) 220px;
}

.term-table {
  min-width: 520px;
}

.glossary-intro p:last-child {
  margin-bottom: 0;
}

.glossary-genre,
.glossary-reading,
.glossary-usage {
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--card);
}

.glossary-usage .usage-list {
  margin-top: 12px;
}

.usage-item {
  padding: 16px 0;
  border-top: 1px solid var(--line);
}

.usage-item h3 {
  margin: 0 0 6px;
  font-size: 16px;
}

.usage-item p {
  margin: 0;
  color: var(--ink-mute);
  font-size: 14px;
}

.section-note {
  margin: 14px 0 0;
  font-size: 14px;
}

.section-note a {
  margin-right: 14px;
}

.content-side {
  min-width: 0;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--card);
}

.side-title {
  margin: 0 0 12px;
  font-size: 15px;
}

.side-nav-list li + li {
  margin-top: 8px;
}

.side-nav-list a {
  color: var(--ink-mute);
  font-size: 14px;
}

.side-nav-list a:hover {
  color: var(--brand);
}

.side-figure {
  margin-top: 18px;
}

.side-figure img {
  aspect-ratio: 4 / 3;
}

/* ============ pages: 404 ============ */

.site-error .error-main {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 60px 24px 72px;
}

.error-block {
  width: 100%;
  max-width: 620px;
  padding: 32px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--card);
  text-align: left;
}

.error-code {
  margin: 0 0 8px;
  color: var(--brand);
  font-family: var(--mono);
  font-size: 40px;
  font-weight: 700;
  line-height: 1;
}

.site-error .error-block h1 {
  margin: 0 0 12px;
  font-size: 26px;
}

.error-text {
  margin: 0 0 18px;
  color: var(--ink-mute);
  font-size: 15px;
}

.error-list {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 24px;
}

.error-list a {
  display: inline-flex;
  align-items: center;
  min-height: 34px;
  padding: 3px 14px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--ink-soft);
  font-size: 14px;
}

.error-list a:hover {
  border-color: var(--brand);
  color: var(--brand);
  text-decoration: none;
}

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

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

@media (max-width: 1024px) {
  .hero-inner {
    grid-template-columns: minmax(0, 1fr);
    gap: 28px;
  }

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

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

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

  .index-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .advice-list,
  .related-grid,
  .step-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-updates .page-layout {
    grid-template-columns: minmax(0, 1fr) 220px;
  }
}

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

  .sidebar-left .catalog-sidebar,
  .catalog-layout .catalog-sidebar {
    position: static;
  }

  .tag-group-list {
    flex-wrap: nowrap;
    overflow-x: auto;
    padding-bottom: 6px;
  }

  .tag-group-list li {
    flex: 0 0 auto;
  }

  .page-updates .page-layout,
  .page-guide .layout-shell,
  .page-glossary .layout-shell {
    grid-template-columns: minmax(0, 1fr);
    max-width: 100%;
  }

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

  .genre-block-works {
    padding-left: 0;
    padding-top: 16px;
    border-left: 0;
    border-top: 1px solid var(--line);
  }
}

@media (max-width: 768px) {
  .site-nav {
    display: none;
  }

  .nav-toggle {
    display: flex;
  }

  .header-inner {
    gap: 16px;
    padding: 10px 16px;
  }

  .mobile-nav-list {
    padding: 6px 16px 12px;
  }

  .site-main {
    padding: 0 16px 44px;
  }

  .footer-inner {
    grid-template-columns: minmax(0, 1fr);
    gap: 24px;
    padding: 32px 16px 20px;
  }

  .copyright {
    padding: 14px 16px;
  }

  h1,
  .page-title,
  .hero-content h1 {
    font-size: 24px;
  }

  h2,
  .section-title {
    font-size: 20px;
  }

  .hero {
    padding: 24px 0 4px;
  }

  .dual-columns,
  .genre-visual-grid,
  .tip-grid,
  .related-groups,
  .usage-row {
    grid-template-columns: minmax(0, 1fr);
  }

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

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

  .error-block {
    padding: 24px 20px;
  }
}

@media (max-width: 480px) {
  .cover-grid,
  .cover-wall {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 14px;
  }

  .genre-chips,
  .genre-index-list,
  .page-tags,
  .page-tag-list {
    flex-wrap: nowrap;
    overflow-x: auto;
    padding-bottom: 6px;
  }

  .genre-chips > *,
  .genre-index-list > *,
  .page-tags > *,
  .page-tag-list > * {
    flex: 0 0 auto;
  }

  .hero-steps {
    flex-direction: column;
    gap: 10px;
  }

  .table-scroll,
  .table-wrap {
    margin: 0 -16px;
    border-radius: 0;
    border-left: 0;
    border-right: 0;
  }

  .tip-row {
    flex-direction: column;
    gap: 8px;
  }

  .error-code {
    font-size: 32px;
  }
}

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

  .cover-card,
  .btn,
  .chip,
  .tag-pill,
  .genre-pill,
  .nav-link {
    transition: none;
  }

  .cover-card:hover {
    transform: none;
  }
}