:root {
  --c-text: #23252b;
  --c-text-soft: #5c6069;
  --c-text-mute: #83878f;
  --c-bg: #f7f8fa;
  --c-surface: #ffffff;
  --c-line: #e2e5ea;
  --c-line-soft: #eef0f4;
  --c-primary: #3a6ea5;
  --c-primary-deep: #2f5a87;
  --c-primary-soft: #eaf1f8;
  --c-action: #c25b4a;
  --c-daily: #4a8a6e;
  --c-mystery: #7a5ea8;
  --c-fantasy: #b08a3e;
  --radius: 6px;
  --radius-sm: 4px;
  --shadow-card: 0 1px 2px rgba(35, 37, 43, 0.05);
  --shadow-hover: 0 4px 14px rgba(35, 37, 43, 0.09);
  --shell: 1120px;
  --gap: 20px;
}

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

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

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

body.site-body {
  margin: 0;
  padding: 0;
  background: var(--c-bg);
  color: var(--c-text);
  font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Source Han Sans SC", "Noto Sans CJK SC", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  font-size: 15px;
  line-height: 1.7;
  font-weight: 400;
}

h1,
h2,
h3,
h4 {
  margin: 0;
  font-weight: 600;
  line-height: 1.35;
  color: var(--c-text);
}

p {
  margin: 0;
}

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

dl,
dd,
dt,
figure,
figcaption {
  margin: 0;
}

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

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

a:hover,
a:focus-visible {
  color: var(--c-primary-deep);
}

a:focus-visible,
button:focus-visible,
summary:focus-visible {
  outline: 2px solid var(--c-primary);
  outline-offset: 2px;
  border-radius: var(--radius-sm);
}

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

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

/* ============ layout: 全站骨架 ============ */

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

.header-inner {
  width: 100%;
  max-width: var(--shell);
  margin: 0 auto;
  padding: 0 24px;
  height: 62px;
  display: flex;
  align-items: center;
  gap: 24px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  flex-shrink: 0;
  color: var(--c-text);
}

.brand:hover,
.brand:focus-visible {
  color: var(--c-text);
}

.brand-mark {
  width: 26px;
  height: 26px;
  border-radius: var(--radius-sm);
  background: var(--c-primary);
  position: relative;
  flex-shrink: 0;
}

.brand-mark::after {
  content: "";
  position: absolute;
  inset: 7px 6px;
  border-radius: 2px;
  background: #ffffff;
}

.brand-name {
  font-size: 17px;
  font-weight: 600;
  letter-spacing: 0;
  white-space: nowrap;
}

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

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

.nav-list li {
  display: block;
}

.nav-list a {
  display: inline-flex;
  align-items: center;
  min-height: 38px;
  padding: 0 14px;
  font-size: 15px;
  color: var(--c-text-soft);
  border-radius: var(--radius-sm);
  white-space: nowrap;
}

.nav-list a:hover,
.nav-list a:focus-visible {
  color: var(--c-primary);
  background: var(--c-primary-soft);
}

.nav-list a.is-current {
  color: var(--c-primary);
  font-weight: 600;
  background: var(--c-primary-soft);
}

.nav-toggle {
  display: none;
  margin-left: auto;
  width: 42px;
  height: 42px;
  padding: 0;
  border: 1px solid var(--c-line);
  border-radius: var(--radius-sm);
  background: var(--c-surface);
  cursor: pointer;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 4px;
}

.nav-toggle-bar {
  display: block;
  width: 18px;
  height: 2px;
  border-radius: 1px;
  background: var(--c-text);
}

.site-main {
  display: block;
}

.inner-main {
  width: 100%;
  max-width: var(--shell);
  margin: 0 auto;
  padding: 20px 24px 56px;
}

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

.breadcrumb a {
  color: var(--c-text-soft);
}

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

.breadcrumb-sep {
  color: var(--c-text-mute);
}

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

.page-header {
  padding-bottom: 20px;
  border-bottom: 1px solid var(--c-line);
  margin-bottom: 28px;
}

.page-title {
  font-size: 30px;
  font-weight: 600;
  line-height: 1.3;
  color: var(--c-text);
}

.page-description {
  margin-top: 10px;
  font-size: 15px;
  color: var(--c-text-soft);
  max-width: 860px;
}

.site-footer {
  background: var(--c-surface);
  border-top: 1px solid var(--c-line);
  margin-top: 8px;
}

.footer-inner {
  width: 100%;
  max-width: var(--shell);
  margin: 0 auto;
  padding: 34px 24px 26px;
  display: grid;
  grid-template-columns: minmax(0, 1.6fr) minmax(0, 1fr);
  gap: 40px;
}

.footer-title {
  font-size: 15px;
  font-weight: 600;
  color: var(--c-text);
  margin-bottom: 12px;
}

.footer-text {
  font-size: 14px;
  color: var(--c-text-soft);
  max-width: 560px;
}

.footer-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px 18px;
}

.footer-list a {
  display: inline-flex;
  align-items: center;
  min-height: 30px;
  font-size: 14px;
  color: var(--c-text-soft);
}

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

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

.footer-copy {
  width: 100%;
  max-width: var(--shell);
  margin: 0 auto;
  padding: 16px 24px 22px;
  font-size: 13px;
  color: var(--c-text-mute);
}

/* ============ layout: 内页通用分栏 ============ */

.page-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 32px;
}

.page-layout.layout-update {
  gap: 28px;
}

.section-title {
  font-size: 22px;
  font-weight: 600;
  color: var(--c-text);
}

.section-lead,
.section-intro {
  margin-top: 8px;
  font-size: 15px;
  color: var(--c-text-soft);
  max-width: 820px;
}

.section-note {
  margin-top: 16px;
  font-size: 13px;
  color: var(--c-text-mute);
}

.section-note a {
  color: var(--c-primary);
}

.subsection-title {
  font-size: 16px;
  font-weight: 600;
  color: var(--c-text);
}

/* ============ components: 按钮与通用小件 ============ */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0 20px;
  border-radius: var(--radius);
  font-size: 15px;
  font-weight: 500;
  border: 1px solid transparent;
  transition: background-color 0.18s ease, color 0.18s ease, border-color 0.18s ease;
}

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

.btn-primary:hover,
.btn-primary:focus-visible {
  background: var(--c-primary-deep);
  border-color: var(--c-primary-deep);
  color: #ffffff;
}

.btn-ghost {
  background: var(--c-surface);
  color: var(--c-text);
  border-color: var(--c-line);
}

.btn-ghost:hover,
.btn-ghost:focus-visible {
  color: var(--c-primary);
  border-color: var(--c-primary);
  background: var(--c-primary-soft);
}

.col-title {
  font-size: 16px;
  font-weight: 600;
  color: var(--c-text);
  padding-bottom: 10px;
  border-bottom: 1px solid var(--c-line);
  margin-bottom: 14px;
}

.col-more {
  display: inline-flex;
  align-items: center;
  min-height: 34px;
  margin-top: 14px;
  font-size: 14px;
  color: var(--c-primary);
}

.col-more:hover,
.col-more:focus-visible {
  color: var(--c-primary-deep);
  text-decoration: underline;
}

/* ============ components: 更新条目（首页与更新页共用基础） ============ */

.update-list {
  display: block;
}

.update-item {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 6px 10px;
  padding: 11px 0;
  border-bottom: 1px dashed var(--c-line);
  font-size: 14px;
}

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

.update-date {
  flex-shrink: 0;
  font-size: 13px;
  color: var(--c-text-mute);
  font-variant-numeric: tabular-nums;
}

.update-name {
  font-size: 14px;
  font-weight: 500;
  color: var(--c-text);
}

.update-name:hover,
.update-name:focus-visible {
  color: var(--c-primary);
}

.update-genre {
  font-size: 12px;
  color: var(--c-text-soft);
  background: var(--c-line-soft);
  border-radius: var(--radius-sm);
  padding: 1px 8px;
}

.update-progress {
  margin-left: auto;
  font-size: 13px;
  color: var(--c-text-soft);
  font-variant-numeric: tabular-nums;
}

/* ============ components: 位次榜单条目（首页与榜单页共用基础） ============ */

.rank-list {
  display: block;
}

.rank-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 11px 0;
  border-bottom: 1px solid var(--c-line-soft);
}

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

.rank-no,
.rank-index {
  flex-shrink: 0;
  width: 26px;
  height: 26px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  background: var(--c-line-soft);
  color: var(--c-text-soft);
  font-size: 13px;
  font-weight: 600;
  font-variant-numeric: tabular-nums;
}

.rank-item:nth-child(1) .rank-no,
.rank-item:nth-child(1) .rank-index {
  background: var(--c-action);
  color: #ffffff;
}

.rank-item:nth-child(2) .rank-no,
.rank-item:nth-child(2) .rank-index {
  background: var(--c-primary);
  color: #ffffff;
}

.rank-item:nth-child(3) .rank-no,
.rank-item:nth-child(3) .rank-index {
  background: var(--c-fantasy);
  color: #ffffff;
}

.rank-name {
  font-size: 14px;
  font-weight: 500;
  color: var(--c-text);
}

.rank-name:hover,
.rank-name:focus-visible {
  color: var(--c-primary);
}

.rank-genre {
  margin-left: auto;
  flex-shrink: 0;
  font-size: 12px;
  color: var(--c-text-soft);
  background: var(--c-line-soft);
  border-radius: var(--radius-sm);
  padding: 1px 8px;
}

/* ============ components: 封面与图片容器约束 ============ */

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

.cover-item {
  display: block;
}

.cover-item a {
  display: block;
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--c-line-soft);
  box-shadow: var(--shadow-card);
  transition: box-shadow 0.18s ease, transform 0.18s ease;
}

.cover-item a:hover,
.cover-item a:focus-visible {
  box-shadow: var(--shadow-hover);
  transform: translateY(-2px);
}

.cover-item img {
  width: 100%;
  aspect-ratio: 3 / 4;
  object-fit: cover;
  background: var(--c-line-soft);
}

.cover-name {
  display: block;
  padding: 8px 9px 2px;
  font-size: 13px;
  font-weight: 500;
  color: var(--c-text);
  line-height: 1.45;
}

.cover-meta {
  display: block;
  padding: 0 9px 10px;
  font-size: 12px;
  color: var(--c-text-mute);
}

/* ============ components: 栏目索引 ============ */

.index-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(190px, 1fr));
  gap: 14px;
}

.index-cell {
  display: block;
}

.index-cell > a {
  display: block;
  height: 100%;
  padding: 16px 16px 18px;
  background: var(--c-surface);
  border: 1px solid var(--c-line);
  border-radius: var(--radius);
  box-shadow: var(--shadow-card);
  transition: border-color 0.18s ease, box-shadow 0.18s ease;
}

.index-cell > a:hover,
.index-cell > a:focus-visible {
  border-color: var(--c-primary);
  box-shadow: var(--shadow-hover);
}

.index-name {
  display: block;
  font-size: 15px;
  font-weight: 600;
  color: var(--c-text);
}

.index-desc {
  display: block;
  margin-top: 6px;
  font-size: 13px;
  color: var(--c-text-soft);
}

/* ============ pages: 首页 ============ */

.fact-bar {
  background: var(--c-primary-soft);
  border-bottom: 1px solid var(--c-line);
}

.fact-bar p {
  width: 100%;
  max-width: var(--shell);
  margin: 0 auto;
  padding: 9px 24px;
  font-size: 13px;
  color: var(--c-text-soft);
}

.home-main {
  display: block;
}

.hero {
  width: 100%;
  max-width: var(--shell);
  margin: 0 auto;
  padding: 34px 24px 8px;
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(0, 1fr);
  gap: 32px;
  align-items: start;
}

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

.hero-kicker {
  display: inline-block;
  font-size: 13px;
  color: var(--c-primary);
  background: var(--c-surface);
  border: 1px solid var(--c-line);
  border-radius: var(--radius-sm);
  padding: 3px 10px;
  margin-bottom: 14px;
}

.hero-title {
  font-size: 34px;
  font-weight: 600;
  line-height: 1.28;
  color: var(--c-text);
}

.hero-text {
  margin-top: 14px;
  font-size: 15px;
  color: var(--c-text-soft);
  max-width: 620px;
}

.hero-text strong {
  color: var(--c-text);
  font-weight: 600;
}

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

.hero-figure {
  margin-top: 24px;
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--c-line);
  background: var(--c-surface);
}

.hero-figure img {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  background: var(--c-line-soft);
}

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

.hero-panels {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 16px;
  min-width: 0;
}

.hero-panel {
  background: var(--c-surface);
  border: 1px solid var(--c-line);
  border-radius: var(--radius);
  box-shadow: var(--shadow-card);
  padding: 16px 18px 14px;
}

.panel-title {
  font-size: 16px;
  font-weight: 600;
  color: var(--c-text);
  padding-bottom: 10px;
  border-bottom: 1px solid var(--c-line-soft);
  margin-bottom: 8px;
}

.panel-list li {
  border-bottom: 1px dashed var(--c-line-soft);
}

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

.panel-list a {
  display: block;
  padding: 9px 0;
  font-size: 14px;
  color: var(--c-text);
  min-height: 38px;
}

.panel-list a:hover,
.panel-list a:focus-visible {
  color: var(--c-primary);
}

.panel-list-meta {
  display: block;
  margin-top: 2px;
  font-size: 12px;
  color: var(--c-text-mute);
}

.panel-more {
  display: inline-flex;
  align-items: center;
  min-height: 34px;
  margin-top: 6px;
  font-size: 13px;
  color: var(--c-primary);
}

.section {
  width: 100%;
  max-width: var(--shell);
  margin: 0 auto;
  padding: 34px 24px 6px;
}

.section-head {
  padding-bottom: 16px;
  border-bottom: 1px solid var(--c-line);
  margin-bottom: 22px;
}

.section-head h2 {
  font-size: 22px;
  font-weight: 600;
  color: var(--c-text);
}

.section-desc {
  margin-top: 8px;
  font-size: 14px;
  color: var(--c-text-soft);
  max-width: 820px;
}

.section-desc a {
  color: var(--c-primary);
}

.genre-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 16px;
}

.genre-card {
  background: var(--c-surface);
  border: 1px solid var(--c-line);
  border-radius: var(--radius);
  box-shadow: var(--shadow-card);
  padding: 18px 18px 16px;
  border-top: 3px solid var(--c-line);
}

.genre-card.genre-action {
  border-top-color: var(--c-action);
}

.genre-card.genre-daily {
  border-top-color: var(--c-daily);
}

.genre-card.genre-mystery {
  border-top-color: var(--c-mystery);
}

.genre-card.genre-fantasy {
  border-top-color: var(--c-fantasy);
}

.genre-name {
  font-size: 17px;
  font-weight: 600;
  color: var(--c-text);
}

.genre-desc {
  margin-top: 8px;
  font-size: 14px;
  color: var(--c-text-soft);
}

.genre-samples {
  margin-top: 12px;
  border-top: 1px solid var(--c-line-soft);
  padding-top: 10px;
}

.genre-samples li {
  display: block;
}

.genre-samples a {
  display: inline-flex;
  align-items: center;
  min-height: 32px;
  font-size: 14px;
  color: var(--c-text);
}

.genre-samples a:hover,
.genre-samples a:focus-visible {
  color: var(--c-primary);
}

.two-col {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(0, 1fr);
  gap: 28px;
  align-items: start;
}

.col-covers,
.col-updates,
.col-rank,
.col-editor,
.col-fields,
.col-feedback {
  min-width: 0;
}

.editor-notes {
  display: block;
}

.editor-note {
  padding: 13px 0;
  border-bottom: 1px solid var(--c-line-soft);
}

.editor-note:first-child {
  padding-top: 0;
}

.editor-note:last-child {
  border-bottom: 0;
}

.note-title {
  font-size: 15px;
  font-weight: 600;
  color: var(--c-text);
}

.note-text {
  margin-top: 5px;
  font-size: 14px;
  color: var(--c-text-soft);
}

.field-summary {
  display: block;
}

.field-summary dt {
  font-size: 14px;
  font-weight: 600;
  color: var(--c-text);
  margin-top: 12px;
}

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

.field-summary dd {
  font-size: 14px;
  color: var(--c-text-soft);
  margin-top: 3px;
}

.feedback-text {
  font-size: 14px;
  color: var(--c-text-soft);
}

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

.feedback-list li {
  display: block;
}

.feedback-list a {
  display: inline-flex;
  align-items: center;
  min-height: 36px;
  font-size: 14px;
  color: var(--c-primary);
}

.feedback-list a:hover,
.feedback-list a:focus-visible {
  color: var(--c-primary-deep);
  text-decoration: underline;
}

.meta-date {
  font-size: 12px;
  color: var(--c-text-mute);
}

/* ============ pages: 题材分类 ============ */

.tema-groups,
.tema-compare,
.tema-relations {
  margin-bottom: 34px;
}

.tema-group-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 18px;
  margin-top: 20px;
}

.tema-group {
  display: flex;
  flex-direction: column;
  background: var(--c-surface);
  border: 1px solid var(--c-line);
  border-radius: var(--radius);
  box-shadow: var(--shadow-card);
  overflow: hidden;
}

.tema-group-media {
  background: var(--c-line-soft);
}

.tema-group-media img {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  background: var(--c-line-soft);
}

.tema-group-body {
  padding: 16px 18px 18px;
}

.tema-group-name {
  font-size: 17px;
  font-weight: 600;
  color: var(--c-text);
}

.tema-group-desc {
  margin-top: 8px;
  font-size: 14px;
  color: var(--c-text-soft);
}

.tema-group-meta {
  margin-top: 10px;
  font-size: 13px;
  color: var(--c-text-mute);
}

.tema-group-items {
  margin-top: 12px;
  padding-top: 10px;
  border-top: 1px solid var(--c-line-soft);
}

.tema-group-items li {
  display: block;
}

.tema-group-items a {
  display: inline-flex;
  align-items: center;
  min-height: 32px;
  font-size: 14px;
  color: var(--c-text);
}

.tema-group-items a:hover,
.tema-group-items a:focus-visible {
  color: var(--c-primary);
}

.tema-compare-columns {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 18px;
  margin-top: 20px;
}

.tema-compare-col {
  background: var(--c-surface);
  border: 1px solid var(--c-line);
  border-radius: var(--radius);
  padding: 18px;
  min-width: 0;
}

.tema-compare-list {
  margin-top: 12px;
}

.tema-compare-list dt {
  font-size: 14px;
  font-weight: 600;
  color: var(--c-text);
  margin-top: 12px;
}

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

.tema-compare-list dd {
  font-size: 14px;
  color: var(--c-text-soft);
  margin-top: 3px;
}

.tema-compare-note,
.tema-compare-tips {
  margin-top: 14px;
  font-size: 13px;
  color: var(--c-text-mute);
}

.tema-relations-links {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 12px;
  margin-top: 18px;
}

.tema-relations-links li {
  display: block;
}

.tema-relations-links a {
  display: block;
  min-height: 44px;
  padding: 11px 16px;
  background: var(--c-surface);
  border: 1px solid var(--c-line);
  border-radius: var(--radius);
  font-size: 14px;
  color: var(--c-text);
}

.tema-relations-links a:hover,
.tema-relations-links a:focus-visible {
  border-color: var(--c-primary);
  color: var(--c-primary);
}

/* ============ pages: 最近更新 ============ */

.archive-bar {
  background: var(--c-surface);
  border: 1px solid var(--c-line);
  border-radius: var(--radius);
  box-shadow: var(--shadow-card);
  padding: 18px 20px 20px;
}

.archive-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 14px;
}

.archive-item {
  display: block;
}

.archive-link {
  display: inline-flex;
  align-items: center;
  min-height: 34px;
  padding: 0 14px;
  border: 1px solid var(--c-line);
  border-radius: var(--radius-sm);
  font-size: 14px;
  color: var(--c-text-soft);
  background: var(--c-bg);
}

.archive-link:hover,
.archive-link:focus-visible {
  border-color: var(--c-primary);
  color: var(--c-primary);
}

.archive-link.is-active {
  background: var(--c-primary);
  border-color: var(--c-primary);
  color: #ffffff;
  font-weight: 500;
}

.update-section {
  margin-top: 4px;
}

.month-group {
  margin-top: 26px;
}

.month-title {
  font-size: 16px;
  font-weight: 600;
  color: var(--c-text);
  padding-bottom: 8px;
  border-bottom: 1px solid var(--c-line);
  margin-bottom: 6px;
}

.update-section .update-list {
  display: block;
}

.update-section .update-item {
  display: grid;
  grid-template-columns: 96px minmax(0, 1fr);
  align-items: start;
  gap: 16px;
  padding: 14px 0;
  border-bottom: 1px solid var(--c-line-soft);
}

.update-cover {
  border-radius: var(--radius-sm);
  overflow: hidden;
  background: var(--c-line-soft);
}

.update-cover img {
  width: 100%;
  aspect-ratio: 3 / 4;
  object-fit: cover;
  background: var(--c-line-soft);
}

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

.update-section .update-date {
  display: inline-block;
  margin-right: 10px;
}

.update-section .update-name {
  display: inline-block;
  font-size: 15px;
}

.update-section .update-genre {
  display: inline-block;
  margin-left: 8px;
}

.update-section .update-progress {
  display: block;
  margin: 6px 0 0;
  font-size: 13px;
  color: var(--c-text-soft);
}

.update-meta {
  margin-top: 6px;
  font-size: 13px;
  color: var(--c-text-soft);
}

.update-note {
  margin-top: 4px;
  font-size: 13px;
  color: var(--c-text-mute);
}

.rhythm-section {
  margin-top: 34px;
}

.rhythm-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 18px;
  margin-top: 18px;
}

.rhythm-col {
  background: var(--c-surface);
  border: 1px solid var(--c-line);
  border-radius: var(--radius);
  padding: 18px;
  min-width: 0;
}

.rhythm-subtitle {
  font-size: 16px;
  font-weight: 600;
  color: var(--c-text);
}

.rhythm-text {
  margin-top: 8px;
  font-size: 14px;
  color: var(--c-text-soft);
}

.rhythm-table {
  width: 100%;
  margin-top: 12px;
  font-size: 13px;
}

.rhythm-table th,
.rhythm-table td {
  text-align: left;
  padding: 8px 10px;
  border: 1px solid var(--c-line);
}

.rhythm-table th {
  background: var(--c-bg);
  font-weight: 600;
  color: var(--c-text);
}

.rhythm-table td {
  color: var(--c-text-soft);
}

.rhythm-link {
  display: inline-flex;
  align-items: center;
  min-height: 34px;
  margin-top: 10px;
  font-size: 14px;
  color: var(--c-primary);
}

/* ============ pages: 人气榜单 ============ */

.rank-section {
  background: var(--c-surface);
  border: 1px solid var(--c-line);
  border-radius: var(--radius);
  box-shadow: var(--shadow-card);
  padding: 20px 22px 18px;
  min-width: 0;
}

.rank-section .rank-list {
  display: block;
  margin-top: 4px;
}

.rank-section .rank-item {
  display: grid;
  grid-template-columns: 30px 68px minmax(0, 1fr);
  align-items: start;
  gap: 14px;
  padding: 14px 0;
  border-bottom: 1px solid var(--c-line-soft);
}

.rank-section .rank-index {
  width: 26px;
  height: 26px;
  margin-top: 2px;
}

.rank-cover {
  border-radius: var(--radius-sm);
  overflow: hidden;
  background: var(--c-line-soft);
}

.rank-cover img {
  width: 100%;
  aspect-ratio: 3 / 4;
  object-fit: cover;
  background: var(--c-line-soft);
}

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

.rank-section .rank-name {
  display: block;
  font-size: 15px;
}

.rank-meta {
  margin-top: 5px;
  font-size: 13px;
  color: var(--c-text-mute);
}

.rank-note {
  margin-top: 6px;
  font-size: 14px;
  color: var(--c-text-soft);
}

.rank-footnote {
  margin-top: 16px;
  padding-top: 14px;
  border-top: 1px solid var(--c-line-soft);
  font-size: 13px;
  color: var(--c-text-mute);
}

.editor-note {
  background: var(--c-surface);
  border: 1px solid var(--c-line);
  border-radius: var(--radius);
  box-shadow: var(--shadow-card);
  padding: 20px 22px 18px;
  min-width: 0;
}

.note-card {
  padding: 13px 0;
  border-bottom: 1px solid var(--c-line-soft);
}

.note-card:first-of-type {
  padding-top: 4px;
}

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

.note-name {
  font-size: 15px;
  font-weight: 600;
  color: var(--c-text);
}

.note-link {
  margin-top: 12px;
  font-size: 14px;
}

.note-link a {
  color: var(--c-primary);
}

.relation-section {
  margin-top: 34px;
}

.relation-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 18px;
  margin-top: 18px;
}

.relation-col {
  background: var(--c-surface);
  border: 1px solid var(--c-line);
  border-radius: var(--radius);
  padding: 18px;
  min-width: 0;
}

.relation-name {
  font-size: 16px;
  font-weight: 600;
  color: var(--c-text);
}

.relation-text {
  margin-top: 8px;
  font-size: 14px;
  color: var(--c-text-soft);
}

.relation-link {
  margin-top: 10px;
  font-size: 14px;
}

.relation-link a {
  color: var(--c-primary);
}

.relation-footnote {
  margin-top: 16px;
  font-size: 13px;
  color: var(--c-text-mute);
}

/* ============ pages: 阅读说明 ============ */

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

.content-section h2 {
  font-size: 22px;
  font-weight: 600;
  color: var(--c-text);
}

.section-figure {
  margin-top: 16px;
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--c-line);
}

.section-figure img {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  background: var(--c-line-soft);
}

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

.field-table {
  width: 100%;
  margin-top: 16px;
  font-size: 14px;
}

.field-table caption {
  text-align: left;
  font-size: 13px;
  color: var(--c-text-mute);
  padding-bottom: 10px;
}

.field-table th,
.field-table td {
  text-align: left;
  padding: 11px 12px;
  border: 1px solid var(--c-line);
  vertical-align: top;
}

.field-table th {
  background: var(--c-bg);
  font-weight: 600;
  color: var(--c-text);
  white-space: nowrap;
}

.field-table td {
  color: var(--c-text-soft);
}

.genre-rule-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 16px;
  margin-top: 16px;
}

.genre-rule {
  background: var(--c-bg);
  border: 1px solid var(--c-line);
  border-radius: var(--radius);
  padding: 16px;
  min-width: 0;
}

.genre-rule h3 {
  font-size: 15px;
  font-weight: 600;
  color: var(--c-text);
}

.genre-rule p {
  margin-top: 7px;
  font-size: 14px;
  color: var(--c-text-soft);
}

.path-steps {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 16px;
  margin-top: 16px;
  counter-reset: path-step;
}

.path-step {
  background: var(--c-bg);
  border: 1px solid var(--c-line);
  border-radius: var(--radius);
  padding: 16px;
  min-width: 0;
}

.path-step .step-index {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 26px;
  height: 26px;
  border-radius: var(--radius-sm);
  background: var(--c-primary);
  color: #ffffff;
  font-size: 13px;
  font-weight: 600;
  margin-bottom: 10px;
}

.path-step h3 {
  font-size: 15px;
  font-weight: 600;
  color: var(--c-text);
}

.path-step p {
  margin-top: 7px;
  font-size: 14px;
  color: var(--c-text-soft);
}

.feedback-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 16px;
  margin-top: 16px;
}

.feedback-block {
  background: var(--c-bg);
  border: 1px solid var(--c-line);
  border-radius: var(--radius);
  padding: 16px;
  min-width: 0;
}

.feedback-block h3 {
  font-size: 15px;
  font-weight: 600;
  color: var(--c-text);
}

.feedback-block .feedback-list {
  margin-top: 10px;
}

.feedback-block .feedback-list li {
  display: block;
  font-size: 14px;
  color: var(--c-text-soft);
  padding: 5px 0;
}

.faq-section {
  margin-bottom: 22px;
}

.faq-item {
  background: var(--c-surface);
  border: 1px solid var(--c-line);
  border-radius: var(--radius);
  padding: 0 18px;
  margin-top: 12px;
}

.faq-item summary {
  cursor: pointer;
  list-style: none;
  padding: 15px 0;
  font-size: 15px;
  font-weight: 600;
  color: var(--c-text);
  display: flex;
  align-items: center;
  min-height: 44px;
}

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

.faq-item summary::after {
  content: "＋";
  margin-left: auto;
  padding-left: 12px;
  font-size: 15px;
  font-weight: 400;
  color: var(--c-text-mute);
}

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

.faq-item p {
  padding: 0 0 16px;
  font-size: 14px;
  color: var(--c-text-soft);
}

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

.error-main {
  width: 100%;
  max-width: var(--shell);
  margin: 0 auto;
  padding: 56px 24px 72px;
}

.error-panel {
  background: var(--c-surface);
  border: 1px solid var(--c-line);
  border-radius: var(--radius);
  box-shadow: var(--shadow-card);
  padding: 34px 28px 30px;
  max-width: 720px;
}

.error-code {
  font-size: 13px;
  color: var(--c-text-mute);
  font-variant-numeric: tabular-nums;
}

.error-panel h1 {
  margin-top: 8px;
  font-size: 28px;
  font-weight: 600;
  color: var(--c-text);
}

.error-text {
  margin-top: 12px;
  font-size: 15px;
  color: var(--c-text-soft);
  max-width: 560px;
}

.error-links {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 10px;
  margin-top: 22px;
}

.error-links li {
  display: block;
}

.error-links a {
  display: block;
  min-height: 44px;
  padding: 11px 14px;
  background: var(--c-bg);
  border: 1px solid var(--c-line);
  border-radius: var(--radius);
  font-size: 14px;
  color: var(--c-text);
}

.error-links a:hover,
.error-links a:focus-visible {
  border-color: var(--c-primary);
  color: var(--c-primary);
}

.error-home {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  margin-top: 22px;
  padding: 0 20px;
  background: var(--c-primary);
  border-radius: var(--radius);
  font-size: 15px;
  color: #ffffff;
}

.error-home:hover,
.error-home:focus-visible {
  background: var(--c-primary-deep);
  color: #ffffff;
}

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

@media (max-width: 960px) {
  .hero {
    grid-template-columns: minmax(0, 1fr);
    gap: 24px;
    padding-top: 26px;
  }

  .hero-title {
    font-size: 30px;
  }

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

  .page-layout {
    gap: 26px;
  }

  .rank-section .rank-item {
    grid-template-columns: 30px 60px minmax(0, 1fr);
    gap: 12px;
  }

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

@media (max-width: 640px) {
  .header-inner,
  .inner-main,
  .hero,
  .section,
  .footer-inner,
  .footer-copy,
  .fact-bar p,
  .error-main {
    padding-left: 16px;
    padding-right: 16px;
  }

  .header-inner {
    height: 58px;
    gap: 12px;
  }

  .nav-toggle {
    display: flex;
  }

  .site-nav {
    position: absolute;
    left: 0;
    right: 0;
    top: 100%;
    background: var(--c-surface);
    border-bottom: 1px solid var(--c-line);
    padding: 8px 16px 14px;
    box-shadow: 0 8px 18px rgba(35, 37, 43, 0.08);
  }

  .nav-list {
    flex-direction: column;
    align-items: stretch;
    gap: 2px;
    display: none;
  }

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

  .nav-list a {
    min-height: 44px;
    padding: 0 12px;
    font-size: 15px;
  }

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

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

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

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

  .update-item {
    align-items: flex-start;
  }

  .update-progress {
    margin-left: 0;
    width: 100%;
  }

  .update-section .update-item {
    grid-template-columns: 76px minmax(0, 1fr);
    gap: 12px;
  }

  .rank-section .rank-item {
    grid-template-columns: 26px 54px minmax(0, 1fr);
    gap: 10px;
  }

  .rank-section {
    padding: 16px 16px 14px;
  }

  .editor-note,
  .content-section,
  .archive-bar {
    padding: 18px 16px 16px;
  }

  .field-table th,
  .field-table td {
    padding: 9px 10px;
    font-size: 13px;
  }

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

  .error-panel {
    padding: 24px 18px 22px;
  }
}

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

  a,
  .btn,
  .cover-item a,
  .index-cell > a {
    transition: none;
  }

  .cover-item a:hover,
  .cover-item a:focus-visible {
    transform: none;
  }
}