:root {
  --color-bg: #f7f5f0;
  --color-card: #ffffff;
  --color-ink: #1f2430;
  --color-muted: #5a6270;
  --color-primary: #2f6e7a;
  --color-primary-dark: #245862;
  --color-accent: #d97a34;
  --color-line: #e3dfd6;
  --color-tag-bg: #edf2f1;
  --radius-sm: 4px;
  --radius-md: 6px;
  --shadow-card: 0 1px 2px rgba(31, 36, 48, 0.05);
  --shell-max: 1080px;
  --font-sans: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", "Segoe UI", sans-serif;
}

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

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

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

body.site-body {
  margin: 0;
  padding: 0;
  background-color: var(--color-bg);
  color: var(--color-ink);
  font-family: var(--font-sans);
  font-size: 15px;
  line-height: 1.8;
  -webkit-font-smoothing: antialiased;
}

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

p {
  margin: 0;
}

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

a {
  color: var(--color-primary);
  text-decoration: none;
  transition: color 0.18s ease;
}

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

img {
  display: block;
  max-width: 100%;
  height: auto;
  border: 0;
}

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

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

strong {
  font-weight: 700;
}

: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-card);
  border-bottom: 1px solid var(--color-line);
}

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

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--color-ink);
}

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

.brand-mark {
  display: block;
  width: 30px;
  height: 30px;
  border-radius: var(--radius-sm);
  background-color: var(--color-primary);
  position: relative;
  flex-shrink: 0;
}

.brand-mark::after {
  content: "";
  position: absolute;
  top: 8px;
  right: 8px;
  bottom: auto;
  left: 8px;
  height: 3px;
  border-radius: 2px;
  background-color: var(--color-bg);
  box-shadow: 0 6px 0 var(--color-accent);
}

.brand-text {
  display: flex;
  flex-direction: column;
  line-height: 1.25;
}

.brand-name {
  font-size: 17px;
  font-weight: 700;
  color: var(--color-ink);
}

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

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

.nav-toggle-bar {
  display: block;
  height: 2px;
  width: 100%;
  background-color: var(--color-ink);
  border-radius: 1px;
}

.site-nav {
  display: flex;
}

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

.nav-link {
  display: block;
  padding: 8px 12px;
  font-size: 14px;
  color: var(--color-ink);
  border-radius: var(--radius-sm);
}

.nav-link:hover {
  color: var(--color-primary);
  background-color: var(--color-tag-bg);
}

.nav-link.is-current {
  color: var(--color-primary);
  font-weight: 700;
  background-color: var(--color-tag-bg);
}

.site-main {
  display: block;
}

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

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

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 10px 20px;
  font-size: 14px;
  font-weight: 700;
  border-radius: var(--radius-md);
  border: 1px solid transparent;
  transition: background-color 0.18s ease, color 0.18s ease, border-color 0.18s ease;
}

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

.btn-primary:hover {
  background-color: var(--color-primary-dark);
  color: #ffffff;
  border-color: var(--color-primary-dark);
}

.btn-ghost {
  background-color: transparent;
  color: var(--color-primary);
  border-color: var(--color-primary);
}

.btn-ghost:hover {
  background-color: var(--color-tag-bg);
  color: var(--color-primary-dark);
}

.section-title {
  font-size: 20px;
  font-weight: 700;
}

.section-desc,
.section-lead,
.section-intro {
  margin-top: 6px;
  font-size: 14px;
  color: var(--color-muted);
}

.section-head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 8px 16px;
  margin-bottom: 18px;
}

.section-head .section-title {
  flex-shrink: 0;
}

.section-head .section-desc {
  flex: 1 1 240px;
  margin-top: 0;
}

.section-more {
  flex-shrink: 0;
  font-size: 13px;
  font-weight: 700;
}

.tag {
  display: inline-block;
  padding: 1px 8px;
  font-size: 12px;
  line-height: 1.6;
  border-radius: var(--radius-sm);
  background-color: var(--color-tag-bg);
  color: var(--color-primary);
  white-space: nowrap;
}

.tag-genre {
  background-color: var(--color-tag-bg);
  color: var(--color-primary);
}

.tag-status {
  background-color: #fbeade;
  color: var(--color-accent);
}

.status-tag {
  display: inline-block;
  padding: 1px 8px;
  font-size: 12px;
  line-height: 1.6;
  border-radius: var(--radius-sm);
  white-space: nowrap;
  background-color: var(--color-tag-bg);
  color: var(--color-muted);
}

.status-ongoing {
  background-color: #e4f0ee;
  color: #2f6e7a;
}

.status-completed,
.status-finished {
  background-color: #eceef2;
  color: #4a5364;
}

.status-hiatus {
  background-color: #fbeade;
  color: #b8622a;
}

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

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

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

.page-header {
  padding-bottom: 18px;
  margin-bottom: 24px;
  border-bottom: 1px solid var(--color-line);
}

.page-title {
  font-size: 28px;
  font-weight: 700;
  line-height: 1.35;
}

.page-description {
  margin-top: 10px;
  max-width: 68ch;
  font-size: 15px;
  color: var(--color-muted);
}

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

.layout-shell {
  grid-template-columns: minmax(0, 1fr) 280px;
}

.guide-layout {
  grid-template-columns: minmax(0, 1fr) 280px;
}

.sidebar,
.side-column {
  display: block;
  font-size: 14px;
  min-width: 0;
}

.sidebar-block,
.aside-block {
  padding: 16px;
  background-color: var(--color-card);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-md);
}

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

.sidebar-title,
.aside-title {
  font-size: 15px;
  font-weight: 700;
  margin-bottom: 8px;
}

.sidebar-text,
.aside-text {
  font-size: 13px;
  color: var(--color-muted);
}

.sidebar-links,
.aside-list,
.aside-links,
.side-list {
  margin-top: 10px;
}

.sidebar-links li + li,
.aside-list li + li,
.aside-links li + li,
.side-list li + li {
  margin-top: 6px;
}

.sidebar-links a,
.aside-list a,
.aside-links a,
.side-link {
  font-size: 13px;
  color: var(--color-primary);
}

.sidebar-fields {
  margin-top: 10px;
  font-size: 13px;
  color: var(--color-muted);
}

.data-table,
.distribution-table {
  background-color: var(--color-card);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-md);
  overflow: hidden;
  font-size: 14px;
}

.data-table-caption,
.distribution-caption {
  padding: 12px 14px;
  text-align: left;
  font-size: 13px;
  color: var(--color-muted);
  caption-side: top;
}

.data-table th,
.data-table td,
.distribution-table th,
.distribution-table td {
  padding: 10px 14px;
  text-align: left;
  border-top: 1px solid var(--color-line);
}

.data-table thead th,
.distribution-table thead th {
  border-top: 0;
  background-color: var(--color-tag-bg);
  font-size: 13px;
  color: var(--color-ink);
}

.data-table tbody th,
.distribution-table tbody th {
  font-weight: 700;
}

.table-note,
.distribution-note {
  margin-top: 10px;
  font-size: 13px;
  color: var(--color-muted);
}

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

/* ---- 首页 ---- */

.home-main {
  display: block;
}

.hero {
  padding: 32px 20px 8px;
}

.hero-inner {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr);
  gap: 32px;
  align-items: start;
  max-width: var(--shell-max);
  margin: 0 auto;
}

.hero-visual {
  display: block;
  min-width: 0;
}

.hero-figure {
  margin: 0 0 14px;
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--color-line);
  background-color: var(--color-card);
}

.hero-image {
  width: 100%;
  height: 200px;
  object-fit: cover;
}

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

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

.cover-card:hover {
  transform: translateY(-3px);
  border-color: var(--color-primary);
  box-shadow: var(--shadow-card);
}

.cover-thumb {
  width: 100%;
  height: 96px;
  object-fit: cover;
}

.cover-meta {
  padding: 8px 10px 10px;
}

.cover-title {
  font-size: 13px;
  font-weight: 700;
  line-height: 1.4;
}

.cover-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
  margin-top: 6px;
}

.cover-update {
  display: block;
  margin-top: 6px;
  font-size: 12px;
  color: var(--color-muted);
}

.hero-panel {
  padding: 24px;
  background-color: var(--color-card);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-md);
  min-width: 0;
}

.hero-eyebrow {
  font-size: 13px;
  font-weight: 700;
  color: var(--color-accent);
}

.hero-title {
  margin-top: 8px;
  font-size: 30px;
  font-weight: 700;
  line-height: 1.35;
}

.hero-lead {
  margin-top: 12px;
  font-size: 15px;
  color: var(--color-muted);
}

.hero-genre-links {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 16px;
}

.genre-chip {
  display: inline-block;
  padding: 5px 12px;
  font-size: 13px;
  color: var(--color-primary);
  background-color: var(--color-tag-bg);
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
}

.genre-chip:hover {
  color: var(--color-primary-dark);
  border-color: var(--color-primary);
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  margin: 20px 0 0;
  padding-top: 16px;
  border-top: 1px solid var(--color-line);
}

.stat-item {
  display: block;
}

.stat-label {
  font-size: 12px;
  color: var(--color-muted);
}

.stat-value {
  margin: 2px 0 0;
  font-size: 18px;
  font-weight: 700;
  color: var(--color-primary);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 20px;
}

.update-feed,
.genre-overview,
.ranking-preview,
.guide-entry {
  max-width: var(--shell-max);
  margin: 0 auto;
  padding: 32px 20px 0;
}

.feed-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px 24px;
}

.feed-item {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  padding: 10px 12px;
  background-color: var(--color-card);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-sm);
  font-size: 13px;
}

.feed-chapter {
  flex-shrink: 0;
  font-weight: 700;
  color: var(--color-accent);
  font-variant-numeric: tabular-nums;
}

.feed-title {
  flex: 1 1 auto;
  min-width: 0;
  color: var(--color-ink);
}

.feed-date {
  flex-shrink: 0;
  color: var(--color-muted);
  font-variant-numeric: tabular-nums;
}

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

.genre-group {
  padding: 18px;
  background-color: var(--color-card);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-md);
  min-width: 0;
}

.genre-group-head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 8px 12px;
}

.genre-group-title {
  font-size: 16px;
  font-weight: 700;
}

.genre-group-meta {
  font-size: 12px;
  color: var(--color-muted);
}

.genre-group-desc {
  margin-top: 8px;
  font-size: 13px;
  color: var(--color-muted);
}

.genre-entry-list {
  margin-top: 12px;
  border-top: 1px solid var(--color-line);
}

.genre-entry {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  padding: 8px 0;
  font-size: 13px;
  border-bottom: 1px solid var(--color-line);
}

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

.entry-name,
.genre-entry-name {
  flex: 1 1 auto;
  min-width: 0;
  color: var(--color-ink);
}

.entry-status {
  flex-shrink: 0;
  font-size: 12px;
  color: var(--color-muted);
}

.genre-entry-date {
  flex-shrink: 0;
  font-size: 12px;
  color: var(--color-muted);
  font-variant-numeric: tabular-nums;
}

.ranking-list {
  display: grid;
  gap: 10px;
}

.ranking-item {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 14px 16px;
  background-color: var(--color-card);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-md);
  transition: transform 0.18s ease, border-color 0.18s ease;
}

.ranking-item:hover {
  transform: translateY(-2px);
  border-color: var(--color-primary);
}

.rank-no,
.rank-number {
  flex-shrink: 0;
  min-width: 28px;
  font-size: 18px;
  font-weight: 700;
  color: var(--color-accent);
  font-variant-numeric: tabular-nums;
}

.rank-body,
.ranking-body {
  flex: 1 1 auto;
  min-width: 0;
}

.rank-title,
.ranking-name {
  font-size: 15px;
  font-weight: 700;
}

.rank-meta,
.ranking-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 6px;
}

.rank-reason,
.ranking-reason {
  margin-top: 8px;
  font-size: 13px;
  color: var(--color-muted);
}

.guide-entry-inner {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(0, 1fr);
  gap: 28px;
  align-items: center;
  padding: 24px;
  background-color: var(--color-card);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-md);
}

.guide-entry-text {
  min-width: 0;
}

.guide-entry-lead {
  margin-top: 10px;
  font-size: 14px;
  color: var(--color-muted);
}

.guide-points {
  margin-top: 14px;
}

.guide-point {
  position: relative;
  padding-left: 16px;
  margin-top: 8px;
  font-size: 14px;
}

.guide-point::before {
  content: "";
  position: absolute;
  left: 0;
  top: 11px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background-color: var(--color-accent);
}

.guide-entry-text .btn {
  margin-top: 18px;
}

.guide-entry-figure {
  margin: 0;
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--color-line);
  background-color: var(--color-card);
}

.guide-image {
  width: 100%;
  height: 200px;
  object-fit: cover;
}

.guide-caption {
  padding: 8px 12px;
  font-size: 12px;
  color: var(--color-muted);
  background-color: var(--color-card);
}

/* ---- 题材分类页 ---- */

.section {
  margin-bottom: 36px;
}

.genre-intro-body {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: 24px;
  align-items: start;
}

.genre-intro-figure {
  margin: 0;
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--color-line);
  background-color: var(--color-card);
}

.genre-intro-figure img {
  width: 100%;
  height: 200px;
  object-fit: cover;
}

.genre-intro-figure figcaption {
  padding: 8px 12px;
  font-size: 12px;
  color: var(--color-muted);
}

.genre-intro-list li {
  padding: 10px 0;
  font-size: 14px;
  border-bottom: 1px solid var(--color-line);
}

.genre-intro-list li:last-child {
  border-bottom: 0;
}

.genre-intro-list strong {
  display: block;
  margin-bottom: 4px;
  color: var(--color-ink);
}

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

.cross-genre-list {
  display: grid;
  gap: 8px;
}

.cross-genre-item {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px 14px;
  padding: 12px 14px;
  background-color: var(--color-card);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-sm);
  font-size: 13px;
}

.cross-genre-name {
  flex: 1 1 auto;
  min-width: 0;
  font-weight: 700;
  color: var(--color-ink);
}

.cross-genre-tags {
  flex-shrink: 0;
  color: var(--color-muted);
}

.cross-genre-date {
  flex-shrink: 0;
  color: var(--color-muted);
  font-variant-numeric: tabular-nums;
}

/* ---- 更新时间线页 ---- */

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

.year-jump {
  margin-bottom: 32px;
}

.year-jump-list {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 14px;
}

.year-jump-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 72px;
  min-height: 44px;
  padding: 6px 16px;
  font-size: 18px;
  font-weight: 700;
  color: var(--color-primary);
  background-color: var(--color-card);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-md);
  font-variant-numeric: tabular-nums;
}

.year-jump-link:hover {
  color: #ffffff;
  background-color: var(--color-primary);
  border-color: var(--color-primary);
}

.month-summary {
  margin-bottom: 32px;
}

.timeline-figure {
  margin: 16px 0 24px;
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--color-line);
  background-color: var(--color-card);
}

.timeline-figure img {
  width: 100%;
  height: 180px;
  object-fit: cover;
}

.timeline-figure figcaption {
  padding: 8px 12px;
  font-size: 12px;
  color: var(--color-muted);
}

.year-block {
  scroll-margin-top: 88px;
}

.year-block + .year-block {
  margin-top: 28px;
}

.year-title {
  font-size: 24px;
  font-weight: 700;
  color: var(--color-primary);
  font-variant-numeric: tabular-nums;
  padding-bottom: 8px;
  border-bottom: 2px solid var(--color-line);
}

.month-block {
  margin-top: 16px;
  padding: 14px 16px;
  background-color: var(--color-card);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-md);
}

.month-title {
  font-size: 15px;
  font-weight: 700;
  color: var(--color-ink);
  font-variant-numeric: tabular-nums;
}

.update-list {
  margin-top: 10px;
  border-top: 1px solid var(--color-line);
}

.update-item {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px 14px;
  padding: 8px 0;
  font-size: 13px;
  border-bottom: 1px solid var(--color-line);
}

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

.update-chapter {
  flex-shrink: 0;
  font-weight: 700;
  color: var(--color-accent);
  font-variant-numeric: tabular-nums;
}

.update-work {
  flex: 1 1 auto;
  min-width: 0;
  color: var(--color-ink);
}

.update-date {
  flex-shrink: 0;
  color: var(--color-muted);
  font-variant-numeric: tabular-nums;
}

.field-note {
  margin-bottom: 32px;
}

.field-list {
  margin: 14px 0 0;
}

.field-item {
  padding: 12px 0;
  border-bottom: 1px solid var(--color-line);
}

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

.field-name {
  font-size: 14px;
  font-weight: 700;
  color: var(--color-ink);
}

.field-desc {
  margin: 4px 0 0;
  font-size: 13px;
  color: var(--color-muted);
}

.field-example {
  display: block;
  margin-top: 4px;
  font-size: 13px;
  color: var(--color-primary);
}

.cross-year-list {
  display: grid;
  gap: 8px;
  margin-top: 14px;
}

.cross-year-item {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px 14px;
  padding: 12px 14px;
  background-color: var(--color-card);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-sm);
  font-size: 13px;
}

.cross-year-work {
  flex: 1 1 auto;
  min-width: 0;
  font-weight: 700;
  color: var(--color-ink);
}

.cross-year-span {
  flex-shrink: 0;
  color: var(--color-accent);
  font-variant-numeric: tabular-nums;
}

.cross-year-note {
  flex-shrink: 0;
  color: var(--color-muted);
}

.side-title {
  font-size: 15px;
  font-weight: 700;
}

.side-desc {
  margin-top: 6px;
  font-size: 13px;
  color: var(--color-muted);
}

.side-subtitle {
  margin-top: 20px;
  font-size: 14px;
  font-weight: 700;
}

/* ---- 人气榜页 ---- */

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

.ranking-note,
.ranking-list-section,
.genre-distribution,
.ranking-refresh {
  margin-bottom: 36px;
}

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

.note-item {
  padding: 16px;
  background-color: var(--color-card);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-md);
}

.note-item-title {
  font-size: 15px;
  font-weight: 700;
  margin-bottom: 6px;
}

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

.note-tip {
  margin-top: 14px;
  font-size: 13px;
  color: var(--color-muted);
}

.ranking-cover {
  flex-shrink: 0;
  margin: 0;
  width: 72px;
  border-radius: var(--radius-sm);
  overflow: hidden;
  border: 1px solid var(--color-line);
}

.ranking-cover img {
  width: 72px;
  height: 72px;
  object-fit: cover;
}

.aside-list-plain {
  margin-top: 10px;
  font-size: 13px;
  color: var(--color-muted);
}

.aside-list-plain li + li {
  margin-top: 6px;
}

/* ---- 阅读说明页 ---- */

.guide-section {
  margin-bottom: 36px;
}

.guide-figure {
  margin: 16px 0 20px;
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--color-line);
  background-color: var(--color-card);
}

.guide-figure img {
  width: 100%;
  height: 200px;
  object-fit: cover;
}

.guide-figure figcaption {
  padding: 8px 12px;
  font-size: 12px;
  color: var(--color-muted);
}

.rule-block {
  margin-top: 16px;
  padding: 16px;
  background-color: var(--color-card);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-md);
}

.rule-title {
  font-size: 15px;
  font-weight: 700;
  margin-bottom: 6px;
}

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

.rule-list {
  margin-top: 10px;
}

.rule-list li {
  position: relative;
  padding-left: 16px;
  margin-top: 6px;
  font-size: 14px;
}

.rule-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 11px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background-color: var(--color-primary);
}

.feedback-steps {
  display: grid;
  gap: 12px;
  margin-top: 16px;
}

.feedback-step {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 14px 16px;
  background-color: var(--color-card);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-md);
}

.step-index {
  flex-shrink: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  font-size: 14px;
  font-weight: 700;
  color: #ffffff;
  background-color: var(--color-primary);
  border-radius: 50%;
  font-variant-numeric: tabular-nums;
}

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

.feedback-step .step-title {
  display: block;
  font-size: 14px;
  font-weight: 700;
}

.feedback-step .step-text {
  display: block;
  margin-top: 4px;
  font-size: 13px;
  color: var(--color-muted);
}

.feedback-note {
  margin-top: 14px;
  font-size: 13px;
  color: var(--color-muted);
}

.faq-list {
  display: grid;
  gap: 10px;
  margin-top: 16px;
}

.faq-item {
  background-color: var(--color-card);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-md);
  padding: 0 16px;
}

.faq-question {
  padding: 14px 0;
  font-size: 15px;
  font-weight: 700;
  cursor: pointer;
  list-style: none;
}

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

.faq-question::after {
  content: "+";
  float: right;
  font-size: 18px;
  font-weight: 700;
  color: var(--color-accent);
  line-height: 1.4;
}

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

.faq-answer {
  padding: 12px 0 14px;
  font-size: 14px;
  color: var(--color-muted);
  border-top: 1px solid var(--color-line);
}

.aside-steps,
.aside-tags {
  margin-top: 10px;
  font-size: 13px;
  color: var(--color-muted);
}

.aside-steps li + li,
.aside-tags li + li {
  margin-top: 6px;
}

/* ---- 404 页 ---- */

.error-main {
  max-width: var(--shell-max);
  margin: 0 auto;
  padding: 48px 20px 64px;
}

.error-panel {
  padding: 32px 24px;
  background-color: var(--color-card);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-md);
  text-align: left;
}

.error-code {
  font-size: 40px;
  font-weight: 700;
  color: var(--color-accent);
  line-height: 1;
  font-variant-numeric: tabular-nums;
}

.error-title {
  margin-top: 12px;
  font-size: 24px;
  font-weight: 700;
}

.error-desc {
  margin-top: 10px;
  max-width: 60ch;
  font-size: 15px;
  color: var(--color-muted);
}

.error-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 20px;
}

.error-hint {
  margin-top: 32px;
}

.error-hint-list {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  margin-top: 14px;
}

.error-hint-list li {
  padding: 14px 16px;
  background-color: var(--color-card);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-md);
  font-size: 14px;
}

/* ---- 页脚 ---- */

.site-footer {
  margin-top: 48px;
  background-color: var(--color-card);
  border-top: 1px solid var(--color-line);
}

.footer-inner {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 2fr);
  gap: 28px;
  max-width: var(--shell-max);
  margin: 0 auto;
  padding: 32px 20px 20px;
}

.footer-brand-name {
  font-size: 16px;
  font-weight: 700;
}

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

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

.footer-group-title {
  font-size: 14px;
  font-weight: 700;
  margin-bottom: 8px;
}

.footer-list li + li {
  margin-top: 6px;
}

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

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

.footer-bottom {
  grid-column: 1 / -1;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 8px;
  padding-top: 16px;
  border-top: 1px solid var(--color-line);
}

.footer-copy,
.footer-note {
  font-size: 12px;
  color: var(--color-muted);
}

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

@media (max-width: 900px) {
  .hero-inner {
    grid-template-columns: minmax(0, 1fr);
    gap: 24px;
  }

  .layout-shell,
  .guide-layout {
    grid-template-columns: minmax(0, 1fr);
    gap: 24px;
  }

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

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

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

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

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

  .nav-list {
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 2px;
    padding-top: 8px;
    border-top: 1px solid var(--color-line);
  }

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

  .nav-link {
    padding: 12px 10px;
    min-height: 44px;
    display: flex;
    align-items: center;
  }

  .hero {
    padding: 24px 16px 4px;
  }

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

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

  .update-feed,
  .genre-overview,
  .ranking-preview,
  .guide-entry {
    padding: 28px 16px 0;
  }

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

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

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

  .inner-main {
    padding: 16px 16px 40px;
  }

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

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

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

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

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

  .footer-group-title {
    position: relative;
    margin: 0;
    padding: 14px 24px 14px 0;
    cursor: pointer;
    min-height: 44px;
    display: flex;
    align-items: center;
  }

  .footer-group-title::after {
    content: "+";
    position: absolute;
    right: 4px;
    font-size: 16px;
    color: var(--color-accent);
  }

  .footer-group.is-open .footer-group-title::after {
    content: "−";
  }

  .footer-list {
    display: none;
    padding-bottom: 12px;
  }

  .footer-group.is-open .footer-list {
    display: block;
  }
}

@media (max-width: 480px) {
  body.site-body {
    font-size: 14px;
  }

  .header-inner {
    padding: 10px 14px;
  }

  .brand-slogan {
    display: none;
  }

  .hero {
    padding: 20px 14px 4px;
  }

  .hero-title {
    font-size: 22px;
  }

  .hero-panel {
    padding: 18px;
  }

  .hero-stats {
    grid-template-columns: minmax(0, 1fr);
    gap: 8px;
  }

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

  .update-feed,
  .genre-overview,
  .ranking-preview,
  .guide-entry {
    padding: 24px 14px 0;
  }

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

  .inner-main {
    padding: 14px 14px 36px;
  }

  .page-title {
    font-size: 22px;
  }

  .ranking-item {
    padding: 12px;
    gap: 10px;
  }

  .ranking-cover,
  .ranking-cover img {
    width: 56px;
    height: 56px;
  }

  .data-table th,
  .data-table td,
  .distribution-table th,
  .distribution-table td {
    padding: 8px 10px;
    font-size: 13px;
  }

  .year-jump-link {
    min-width: 60px;
    padding: 6px 12px;
    font-size: 16px;
  }

  .footer-inner {
    padding: 24px 14px 16px;
  }

  .error-main {
    padding: 32px 14px 48px;
  }
}