/* ==========================================================================
   樱花动漫在线观看 · 全站样式表
   分组：base / layout / components / pages / responsive
   ========================================================================== */

/* --------------------------------------------------------------------------
   base：变量、重置、字体、基础元素
   -------------------------------------------------------------------------- */
:root {
  --color-primary: #3f7d84;
  --color-primary-dark: #2f6169;
  --color-primary-soft: #e6eff0;
  --color-paper: #ffffff;
  --color-mist: #f4f5f6;
  --color-ink: #22282b;
  --color-muted: #6b7378;
  --color-line: #dfe3e4;
  --color-line-strong: #c9d0d1;
  --radius-sm: 4px;
  --radius-md: 6px;
  --radius-lg: 8px;
  --shadow-card: 0 1px 2px rgba(34, 40, 43, 0.06);
  --shadow-lift: 0 6px 18px rgba(34, 40, 43, 0.1);
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
    "Hiragino Sans GB", "Microsoft YaHei", "Source Han Sans SC", sans-serif;
  --container: 1080px;
  --reading: 720px;
  --gap-sm: 12px;
  --gap-md: 20px;
  --gap-lg: 32px;
  --gap-xl: 56px;
}

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

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

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

h1,
h2,
h3,
h4,
p,
figure,
dl,
dd,
ul,
ol {
  margin: 0;
}

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

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

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

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

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

h1,
h2,
h3 {
  line-height: 1.35;
  font-weight: 600;
  color: var(--color-ink);
}

button {
  font: inherit;
  color: inherit;
}

/* --------------------------------------------------------------------------
   layout：全站骨架 —— 页头、导航、主容器、面包屑、页标题、页脚
   -------------------------------------------------------------------------- */
.site-body {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  background-color: var(--color-paper);
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  background-color: rgba(255, 255, 255, 0.96);
  border-bottom: 1px solid var(--color-line);
}

.header-inner {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
  min-height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--gap-md);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--color-ink);
  font-weight: 600;
  font-size: 17px;
  line-height: 1.3;
}

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

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

.brand-mark::after {
  content: "";
  position: absolute;
  inset: 7px 6px;
  border-radius: 50% 50% 50% 2px;
  background-color: var(--color-paper);
}

.brand-text {
  white-space: nowrap;
}

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

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

.nav-list > li {
  display: block;
}

.nav-link {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 0 12px;
  font-size: 15px;
  color: var(--color-ink);
  border-bottom: 2px solid transparent;
}

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

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

.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  padding: 0;
  border: 1px solid var(--color-line-strong);
  border-radius: var(--radius-md);
  background-color: var(--color-paper);
  cursor: pointer;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
}

.nav-toggle-bar {
  display: block;
  width: 20px;
  height: 2px;
  background-color: var(--color-ink);
  border-radius: 1px;
}

.site-main {
  flex: 1 1 auto;
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px 72px;
}

/* 面包屑：仅内页出现 */
.breadcrumb {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  padding: 20px 0 0;
  font-size: 13px;
  color: var(--color-muted);
}

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

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

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

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

/* 内页标题区：全站统一 */
.page-header {
  padding: 24px 0 28px;
  border-bottom: 1px solid var(--color-line);
  margin-bottom: var(--gap-lg);
}

.page-title {
  font-size: 30px;
  font-weight: 600;
  color: var(--color-ink);
  margin-bottom: 12px;
}

.page-description {
  max-width: var(--reading);
  font-size: 15px;
  color: var(--color-muted);
}

.page-header-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--gap-sm);
  margin-top: 18px;
}

.action-link {
  display: inline-flex;
  align-items: center;
  min-height: 40px;
  padding: 0 16px;
  font-size: 14px;
  border: 1px solid var(--color-line-strong);
  border-radius: var(--radius-md);
  background-color: var(--color-paper);
  color: var(--color-primary);
}

.action-link:hover,
.action-link:focus-visible {
  border-color: var(--color-primary);
  background-color: var(--color-primary-soft);
  text-decoration: none;
}

/* 页脚：全站统一 */
.site-footer {
  border-top: 1px solid var(--color-line);
  background-color: var(--color-mist);
}

.footer-inner {
  max-width: var(--container);
  margin: 0 auto;
  padding: 40px 24px 28px;
}

.footer-summary {
  max-width: var(--reading);
  font-size: 14px;
  color: var(--color-muted);
  margin-bottom: 28px;
}

.footer-groups {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: var(--gap-md) var(--gap-lg);
}

.footer-title {
  font-size: 14px;
  font-weight: 600;
  color: var(--color-ink);
  margin-bottom: 10px;
}

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

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

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

.footer-copyright {
  margin-top: 32px;
  padding-top: 18px;
  border-top: 1px solid var(--color-line);
  font-size: 13px;
  color: var(--color-muted);
}

/* 内页通用两栏布局：主内容在前，aside 在后 */
.page-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 260px;
  gap: var(--gap-lg) 36px;
  align-items: start;
}

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

.layout-aside {
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: var(--gap-md);
}

/* --------------------------------------------------------------------------
   components：通用按钮、标签、卡片、表格、步骤、区块标题
   -------------------------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0 22px;
  font-size: 15px;
  font-weight: 600;
  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: var(--color-paper);
  border-color: var(--color-primary);
}

.btn-primary:hover,
.btn-primary:focus-visible {
  background-color: var(--color-primary-dark);
  border-color: var(--color-primary-dark);
  color: var(--color-paper);
  text-decoration: none;
}

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

.btn-ghost:hover,
.btn-ghost:focus-visible {
  background-color: var(--color-primary-soft);
  text-decoration: none;
}

.tag {
  display: inline-flex;
  align-items: center;
  min-height: 32px;
  padding: 0 12px;
  font-size: 13px;
  color: var(--color-primary);
  background-color: var(--color-primary-soft);
  border-radius: var(--radius-sm);
}

.tag:hover,
.tag:focus-visible {
  background-color: var(--color-primary);
  color: var(--color-paper);
  text-decoration: none;
}

/* 区块与区块标题 */
.section {
  padding: var(--gap-xl) 0 0;
}

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

.section-title {
  font-size: 20px;
  font-weight: 600;
  color: var(--color-ink);
  margin-bottom: 10px;
}

.section-desc,
.section-lead,
.section-note,
.section-intro {
  max-width: var(--reading);
  font-size: 14px;
  color: var(--color-muted);
}

.section-text {
  max-width: var(--reading);
  font-size: 15px;
  color: var(--color-ink);
  margin-top: 12px;
}

/* 表格通用 */
.fields-table,
.field-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
  background-color: var(--color-paper);
}

.fields-table th,
.fields-table td,
.field-table th,
.field-table td {
  padding: 12px 14px;
  text-align: left;
  vertical-align: top;
  border-bottom: 1px solid var(--color-line);
}

.fields-table thead th,
.field-table thead th {
  font-weight: 600;
  color: var(--color-ink);
  background-color: var(--color-mist);
  border-bottom: 1px solid var(--color-line-strong);
  white-space: nowrap;
}

.fields-table tbody th,
.field-table tbody th {
  font-weight: 600;
  color: var(--color-ink);
  white-space: nowrap;
}

.fields-table td,
.field-table td {
  color: var(--color-ink);
}

.table-caption,
.visually-caption {
  caption-side: top;
  text-align: left;
  font-size: 13px;
  color: var(--color-muted);
  padding-bottom: 10px;
}

/* 步骤编号（首页查阅路径 / 内页查阅路径共用基础，按父级限定） */
.step-index {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 30px;
  height: 30px;
  flex: 0 0 30px;
  border-radius: 50%;
  background-color: var(--color-primary);
  color: var(--color-paper);
  font-size: 14px;
  font-weight: 600;
}

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

.step-name {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 6px;
}

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

/* 图片容器通用约束 */
.hero-visual img,
.topic-figure img,
.genre-figure img,
.list-figure img,
.media-figure img,
.path-figure img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: var(--radius-md);
  background-color: var(--color-mist);
}

/* --------------------------------------------------------------------------
   pages：首页
   -------------------------------------------------------------------------- */
.home-main {
  padding-top: 0;
}

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

.hero-inner {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: var(--gap-lg);
  align-items: center;
}

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

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

.hero-title {
  font-size: 30px;
  font-weight: 600;
  margin-bottom: 14px;
}

.hero-lead {
  max-width: 520px;
  font-size: 15px;
  color: var(--color-muted);
  margin-bottom: 22px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--gap-sm);
  margin-bottom: 20px;
}

.hero-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.hero-visual {
  min-width: 0;
  margin: 0;
}

.hero-visual img {
  aspect-ratio: 4 / 3;
}

.hero-visual figcaption {
  margin-top: 10px;
  font-size: 13px;
  color: var(--color-muted);
}

/* 题材频道总览 */
.genre-list {
  border-top: 1px solid var(--color-line);
}

.genre-row {
  display: grid;
  grid-template-columns: 160px minmax(0, 1.2fr) minmax(0, 1.6fr) 96px;
  gap: var(--gap-md);
  align-items: center;
  padding: 16px 4px;
  border-bottom: 1px solid var(--color-line);
  transition: background-color 0.18s ease;
}

.genre-row:hover {
  background-color: var(--color-mist);
}

.genre-name {
  font-size: 16px;
  font-weight: 600;
}

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

.genre-name a:hover,
.genre-name a:focus-visible {
  color: var(--color-primary);
  text-decoration: none;
}

.genre-orientation,
.genre-focus {
  font-size: 14px;
  color: var(--color-muted);
}

.genre-enter {
  justify-self: end;
  display: inline-flex;
  align-items: center;
  min-height: 36px;
  padding: 0 14px;
  font-size: 13px;
  border: 1px solid var(--color-line-strong);
  border-radius: var(--radius-md);
  color: var(--color-primary);
  white-space: nowrap;
}

.genre-row:hover .genre-enter,
.genre-enter:hover,
.genre-enter:focus-visible {
  border-color: var(--color-primary);
  background-color: var(--color-primary-soft);
  text-decoration: none;
}

/* 本期专题书单 */
.topic-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--gap-md);
}

.topic-card {
  display: flex;
  flex-direction: column;
  padding: 16px;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-lg);
  background-color: var(--color-paper);
  box-shadow: var(--shadow-card);
  transition: border-color 0.18s ease, transform 0.18s ease,
    box-shadow 0.18s ease;
}

.topic-card:hover {
  border-color: var(--color-primary);
  transform: translateY(-2px);
  box-shadow: var(--shadow-lift);
}

.topic-figure {
  margin: 0 0 14px;
}

.topic-figure img {
  aspect-ratio: 16 / 10;
}

.topic-name {
  font-size: 17px;
  font-weight: 600;
  margin-bottom: 8px;
}

.topic-name a {
  color: var(--color-ink);
}

.topic-name a:hover,
.topic-name a:focus-visible {
  color: var(--color-primary);
  text-decoration: none;
}

.topic-scope {
  font-size: 14px;
  color: var(--color-muted);
  margin-bottom: 10px;
}

.topic-count {
  font-size: 13px;
  color: var(--color-muted);
  margin-bottom: 14px;
}

.topic-enter {
  margin-top: auto;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 40px;
  padding: 0 16px;
  font-size: 14px;
  border: 1px solid var(--color-primary);
  border-radius: var(--radius-md);
  color: var(--color-primary);
}

.topic-enter:hover,
.topic-enter:focus-visible {
  background-color: var(--color-primary);
  color: var(--color-paper);
  text-decoration: none;
}

/* 条目字段与收录边界摘要 */
.fields-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.7fr) minmax(0, 1fr);
  gap: var(--gap-lg);
  align-items: start;
}

.fields-table-wrap {
  min-width: 0;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.fields-notes {
  min-width: 0;
  padding: 18px;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-lg);
  background-color: var(--color-mist);
}

.notes-title {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 12px;
}

.notes-list li {
  position: relative;
  padding-left: 16px;
  font-size: 14px;
  color: var(--color-ink);
  margin-bottom: 10px;
}

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

.notes-link {
  display: inline-flex;
  align-items: center;
  min-height: 40px;
  margin-top: 6px;
  font-size: 14px;
  color: var(--color-primary);
}

/* 查阅路径三步概览 */
.path-steps {
  display: grid;
  gap: 0;
  border-top: 1px solid var(--color-line);
}

.path-step {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  padding: 18px 4px;
  border-bottom: 1px solid var(--color-line);
}

.path-more {
  margin-top: 18px;
  font-size: 14px;
}

/* 收录范围调整记录 */
.record-groups {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--gap-lg);
}

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

.record-year {
  font-size: 15px;
  font-weight: 600;
  color: var(--color-primary);
  padding-bottom: 10px;
  margin-bottom: 12px;
  border-bottom: 1px solid var(--color-line);
}

.record-item {
  display: grid;
  grid-template-columns: 92px minmax(0, 1fr);
  gap: 4px 14px;
  padding: 12px 0;
  border-bottom: 1px dashed var(--color-line);
}

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

.record-target {
  font-size: 14px;
  font-weight: 600;
  color: var(--color-ink);
}

.record-impact {
  grid-column: 2;
  font-size: 14px;
  color: var(--color-muted);
}

.record-feedback {
  margin-top: 22px;
  font-size: 14px;
  color: var(--color-muted);
}

.record-feedback a {
  margin-right: 6px;
}

/* --------------------------------------------------------------------------
   pages：内页 —— 题材频道
   -------------------------------------------------------------------------- */
.sidebar-left .page-layout {
  grid-template-columns: 220px minmax(0, 1fr);
}

.channel-index {
  min-width: 0;
  padding: 18px;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-lg);
  background-color: var(--color-mist);
  position: sticky;
  top: 84px;
}

.index-title {
  font-size: 15px;
  font-weight: 600;
  margin-bottom: 12px;
}

.index-list li {
  margin-bottom: 4px;
}

.index-item a {
  display: inline-flex;
  align-items: center;
  min-height: 36px;
  padding: 0 10px;
  width: 100%;
  font-size: 14px;
  color: var(--color-ink);
  border-left: 2px solid transparent;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
}

.index-item a:hover,
.index-item a:focus-visible {
  color: var(--color-primary);
  background-color: var(--color-paper);
  text-decoration: none;
}

.index-item.is-current a {
  color: var(--color-primary);
  font-weight: 600;
  border-left-color: var(--color-primary);
  background-color: var(--color-paper);
}

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

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

.genre-section {
  padding-bottom: var(--gap-lg);
  margin-bottom: var(--gap-lg);
  border-bottom: 1px solid var(--color-line);
}

.genre-section:last-of-type {
  border-bottom: 0;
}

.genre-head {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 240px;
  gap: var(--gap-md);
  align-items: center;
  margin-bottom: 16px;
}

.genre-head .genre-name {
  font-size: 20px;
}

.genre-figure {
  margin: 0;
}

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

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

.genre-tendency {
  max-width: var(--reading);
  font-size: 15px;
  color: var(--color-ink);
  margin-bottom: 14px;
}

.genre-focus {
  max-width: var(--reading);
  padding: 14px 16px;
  border-left: 3px solid var(--color-primary);
  background-color: var(--color-mist);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  margin-bottom: 14px;
}

.focus-title {
  font-size: 15px;
  font-weight: 600;
  margin-bottom: 8px;
}

.focus-list li {
  position: relative;
  padding-left: 16px;
  font-size: 14px;
  color: var(--color-muted);
  margin-bottom: 6px;
}

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

.genre-feature {
  max-width: var(--reading);
  font-size: 14px;
  color: var(--color-muted);
}

/* 翻阅顺序建议 */
.reading-order {
  padding-top: var(--gap-md);
}

.order-columns {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--gap-sm);
  margin-top: 18px;
}

.order-card {
  padding: 14px 16px;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-lg);
  background-color: var(--color-paper);
  transition: border-color 0.18s ease, transform 0.18s ease;
}

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

.order-name {
  font-size: 15px;
  font-weight: 600;
  margin-bottom: 6px;
}

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

.order-foot {
  margin-top: 18px;
  font-size: 14px;
}

.order-foot a {
  margin-right: 14px;
}

/* 题材交叉关系 */
.cross-section {
  margin-top: var(--gap-xl);
  padding-top: var(--gap-lg);
  border-top: 1px solid var(--color-line);
}

.cross-text {
  max-width: var(--reading);
  font-size: 15px;
  color: var(--color-ink);
  margin-bottom: 12px;
}

.cross-examples {
  margin-top: 20px;
  padding: 18px;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-lg);
  background-color: var(--color-mist);
}

.cross-subtitle {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 12px;
}

.cross-item {
  position: relative;
  padding-left: 16px;
  font-size: 14px;
  color: var(--color-muted);
  margin-bottom: 8px;
}

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

/* --------------------------------------------------------------------------
   pages：内页 —— 专题书单
   -------------------------------------------------------------------------- */
.lists-section {
  padding-top: 0;
}

.list-block {
  display: grid;
  grid-template-columns: 300px minmax(0, 1fr);
  gap: var(--gap-lg);
  align-items: start;
  padding: var(--gap-lg) 0;
  border-bottom: 1px solid var(--color-line);
}

.list-block:last-of-type {
  border-bottom: 0;
}

.list-figure {
  margin: 0;
}

.list-figure img {
  aspect-ratio: 16 / 10;
}

.list-figure figcaption {
  margin-top: 8px;
  font-size: 13px;
  color: var(--color-muted);
}

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

.list-name {
  font-size: 20px;
  font-weight: 600;
  margin-bottom: 14px;
}

.list-meta {
  display: grid;
  grid-template-columns: 96px minmax(0, 1fr);
  gap: 8px 14px;
  margin-bottom: 16px;
}

.list-meta dt {
  font-size: 14px;
  font-weight: 600;
  color: var(--color-ink);
}

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

.list-entry-link {
  display: inline-flex;
  align-items: center;
  min-height: 40px;
  padding: 0 18px;
  font-size: 14px;
  border: 1px solid var(--color-primary);
  border-radius: var(--radius-md);
  color: var(--color-primary);
}

.list-entry-link:hover,
.list-entry-link:focus-visible {
  background-color: var(--color-primary);
  color: var(--color-paper);
  text-decoration: none;
}

/* 书单内部条目关系 */
.relation-section {
  padding-top: var(--gap-xl);
}

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

.relation-item {
  padding: 18px;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-lg);
  background-color: var(--color-paper);
}

.relation-name {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 8px;
}

.relation-item p {
  font-size: 14px;
  color: var(--color-muted);
}

.relation-note {
  margin-top: 18px;
  font-size: 14px;
}

/* 书单更新记录 */
.update-list {
  margin-top: 18px;
  border-top: 1px solid var(--color-line);
}

.update-item {
  display: grid;
  grid-template-columns: 110px minmax(0, 1fr);
  gap: 4px 16px;
  padding: 16px 4px;
  border-bottom: 1px solid var(--color-line);
}

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

.update-target {
  font-size: 15px;
  font-weight: 600;
  color: var(--color-ink);
}

.update-scope {
  grid-column: 2;
  font-size: 14px;
  color: var(--color-muted);
}

.updates-note {
  margin-top: 20px;
  font-size: 14px;
  color: var(--color-muted);
}

/* --------------------------------------------------------------------------
   pages：内页 —— 条目字段说明
   -------------------------------------------------------------------------- */
.section-field-table {
  padding-top: 0;
}

.media-figure {
  margin: 18px 0 20px;
}

.media-figure img {
  aspect-ratio: 16 / 9;
  max-height: 320px;
}

.media-figure figcaption {
  margin-top: 8px;
  font-size: 13px;
  color: var(--color-muted);
}

.table-scroll {
  min-width: 0;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.section-field-combo,
.section-field-missing {
  padding-top: var(--gap-xl);
}

.combo-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: var(--gap-sm);
  margin-top: 18px;
}

.combo-item {
  padding: 16px;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-lg);
  background-color: var(--color-mist);
}

.combo-title {
  font-size: 15px;
  font-weight: 600;
  margin-bottom: 8px;
}

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

/* 右侧辅助栏 */
.aside-block {
  padding: 16px;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-lg);
  background-color: var(--color-paper);
}

.aside-title {
  font-size: 15px;
  font-weight: 600;
  margin-bottom: 12px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--color-line);
}

.aside-text {
  font-size: 14px;
  color: var(--color-muted);
  margin-bottom: 12px;
}

.aside-item {
  margin-bottom: 6px;
}

.aside-item a {
  display: inline-flex;
  align-items: center;
  min-height: 36px;
  font-size: 14px;
  color: var(--color-ink);
}

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

.aside-memo {
  display: grid;
  grid-template-columns: 76px minmax(0, 1fr);
  gap: 8px 12px;
}

.aside-memo dt {
  font-size: 13px;
  font-weight: 600;
  color: var(--color-ink);
}

.aside-memo dd {
  font-size: 13px;
  color: var(--color-muted);
}

/* --------------------------------------------------------------------------
   pages：内页 —— 查阅路径
   -------------------------------------------------------------------------- */
.path-section,
.track-section,
.rhythm-section,
.feedback-section {
  padding-top: var(--gap-xl);
}

.path-section {
  padding-top: 0;
}

.step-list {
  display: grid;
  gap: 0;
  margin-top: 18px;
  border-top: 1px solid var(--color-line);
}

.step-item {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  padding: 18px 4px;
  border-bottom: 1px solid var(--color-line);
}

.path-figure {
  margin: 22px 0 0;
}

.path-figure img {
  aspect-ratio: 16 / 9;
  max-height: 320px;
}

.path-figure figcaption {
  margin-top: 8px;
  font-size: 13px;
  color: var(--color-muted);
}

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

.track-card {
  padding: 18px;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-lg);
  background-color: var(--color-paper);
}

.track-name {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 8px;
}

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

.track-tip {
  margin-top: var(--gap-md);
  padding: 18px;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-lg);
  background-color: var(--color-mist);
}

.track-tip-title {
  font-size: 15px;
  font-weight: 600;
  margin-bottom: 10px;
}

.track-tip-list li {
  position: relative;
  padding-left: 16px;
  font-size: 14px;
  color: var(--color-muted);
  margin-bottom: 8px;
}

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

.rhythm-list {
  display: grid;
  gap: var(--gap-sm);
  margin-top: 18px;
}

.rhythm-item {
  padding: 16px 18px;
  border-left: 3px solid var(--color-primary);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  background-color: var(--color-mist);
}

.rhythm-name {
  font-size: 15px;
  font-weight: 600;
  margin-bottom: 6px;
}

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

.feedback-text {
  max-width: var(--reading);
  font-size: 15px;
  color: var(--color-ink);
  margin-top: 12px;
}

.feedback-text a {
  margin: 0 4px;
}

/* --------------------------------------------------------------------------
   pages：404
   -------------------------------------------------------------------------- */
.error-main {
  max-width: var(--container);
  margin: 0 auto;
  padding: 64px 24px 72px;
}

.error-panel {
  max-width: var(--reading);
  padding: 32px;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-lg);
  background-color: var(--color-mist);
}

.error-code {
  font-size: 13px;
  font-weight: 600;
  color: var(--color-primary);
  margin-bottom: 8px;
}

.error-title {
  font-size: 30px;
  font-weight: 600;
  margin-bottom: 12px;
}

.error-text {
  font-size: 15px;
  color: var(--color-muted);
  margin-bottom: 22px;
}

.error-action {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0 22px;
  font-size: 15px;
  font-weight: 600;
  border-radius: var(--radius-md);
  background-color: var(--color-primary);
  color: var(--color-paper);
}

.error-action:hover,
.error-action:focus-visible {
  background-color: var(--color-primary-dark);
  color: var(--color-paper);
  text-decoration: none;
}

.error-links {
  margin-top: var(--gap-xl);
}

.error-links-title {
  font-size: 20px;
  font-weight: 600;
  margin-bottom: 16px;
}

.error-links-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: var(--gap-sm);
}

.error-links-list a {
  display: flex;
  align-items: center;
  min-height: 52px;
  padding: 0 18px;
  font-size: 15px;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-lg);
  background-color: var(--color-paper);
  color: var(--color-ink);
  transition: border-color 0.18s ease, transform 0.18s ease;
}

.error-links-list a:hover,
.error-links-list a:focus-visible {
  border-color: var(--color-primary);
  color: var(--color-primary);
  transform: translateY(-2px);
  text-decoration: none;
}

/* 滚动淡入：仅作为增强，默认完全可见 */
@media (prefers-reduced-motion: no-preference) {
  .section,
  .genre-section,
  .list-block {
    animation: fade-rise 0.5s ease both;
  }
}

@keyframes fade-rise {
  from {
    transform: translateY(10px);
  }
  to {
    transform: translateY(0);
  }
}

/* --------------------------------------------------------------------------
   responsive：960px 与 640px 两档
   -------------------------------------------------------------------------- */
@media (max-width: 960px) {
  .header-inner {
    padding: 0 20px;
  }

  .site-main,
  .error-main {
    padding-left: 20px;
    padding-right: 20px;
  }

  .footer-inner {
    padding-left: 20px;
    padding-right: 20px;
  }

  .nav-toggle {
    display: flex;
  }

  .site-nav {
    position: absolute;
    left: 0;
    right: 0;
    top: 100%;
    display: block;
    background-color: var(--color-paper);
    border-bottom: 1px solid var(--color-line);
    box-shadow: var(--shadow-lift);
  }

  .nav-list {
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 8px 20px 16px;
    max-width: var(--container);
    margin: 0 auto;
  }

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

  .nav-link {
    min-height: 48px;
    padding: 0 4px;
    border-bottom: 1px solid var(--color-line);
    border-left: 2px solid transparent;
    font-size: 16px;
  }

  .nav-link.is-current {
    border-bottom-color: var(--color-line);
    border-left-color: var(--color-primary);
    padding-left: 12px;
  }

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

  .hero-visual {
    order: 2;
  }

  .genre-row {
    grid-template-columns: 140px minmax(0, 1fr) 88px;
  }

  .genre-focus {
    grid-column: 2;
    color: var(--color-muted);
  }

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

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

  .record-groups {
    grid-template-columns: minmax(0, 1fr);
    gap: var(--gap-md);
  }

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

  .layout-aside {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: var(--gap-md);
  }

  .channel-index {
    position: static;
    padding: 14px;
  }

  .index-list {
    display: flex;
    gap: 8px;
    overflow-x: auto;
    padding-bottom: 4px;
  }

  .index-item {
    flex: 0 0 auto;
  }

  .index-item a {
    white-space: nowrap;
    border-left: 0;
    border-bottom: 2px solid transparent;
    border-radius: var(--radius-sm) var(--radius-sm) 0 0;
  }

  .index-item.is-current a {
    border-left: 0;
    border-bottom-color: var(--color-primary);
  }

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

  .list-block {
    grid-template-columns: minmax(0, 1fr);
    gap: var(--gap-md);
  }

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

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

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

  .header-inner {
    padding: 0 16px;
    min-height: 58px;
  }

  .brand-text {
    font-size: 16px;
  }

  .site-main,
  .error-main {
    padding-left: 16px;
    padding-right: 16px;
    padding-bottom: 56px;
  }

  .hero {
    padding-top: 26px;
  }

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

  .section {
    padding-top: 40px;
  }

  .section-title,
  .list-name,
  .genre-head .genre-name,
  .error-links-title {
    font-size: 18px;
  }

  .genre-row {
    grid-template-columns: minmax(0, 1fr);
    gap: 6px;
    padding: 14px 2px;
  }

  .genre-focus {
    grid-column: 1;
  }

  .genre-enter {
    justify-self: start;
    margin-top: 6px;
  }

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

  .fields-table-wrap,
  .table-scroll {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
  }

  .fields-table,
  .field-table {
    min-width: 520px;
  }

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

  .record-impact,
  .update-scope {
    grid-column: 1;
  }

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

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

  .aside-memo {
    grid-template-columns: 68px minmax(0, 1fr);
  }

  .footer-inner {
    padding: 32px 16px 24px;
  }

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

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