:root {
  --bg-page: #F7FAF9;
  --bg-card: #FFFFFF;
  --ink-strong: #123B3A;
  --ink-body: #2A4A48;
  --ink-muted: #5C7B78;
  --brand: #2E7D6F;
  --brand-soft: #5FB3A1;
  --line: #E3EFEC;
  --line-strong: #CFE1DD;
  --alert: #B4453C;
  --radius-card: 8px;
  --radius-pill: 999px;
  --shadow-card: 0 1px 2px rgba(18, 59, 58, 0.05), 0 8px 20px rgba(18, 59, 58, 0.05);
  --shadow-hover: 0 2px 4px rgba(18, 59, 58, 0.08), 0 12px 26px rgba(18, 59, 58, 0.09);
  --container: 1120px;
  --font-sans: "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-mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, "Liberation Mono", monospace;
}

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

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

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

body.site-body {
  margin: 0;
  background-color: var(--bg-page);
  color: var(--ink-body);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.75;
  font-weight: 400;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

figure {
  margin: 0;
}

figcaption {
  font-size: 13px;
  line-height: 1.6;
  color: var(--ink-muted);
}

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

p {
  margin: 0;
}

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

a {
  color: var(--brand);
  text-decoration: none;
  transition: color 0.18s ease, border-color 0.18s ease, background-color 0.18s ease;
}

a:hover {
  color: var(--ink-strong);
}

a:focus-visible,
button:focus-visible,
summary:focus-visible {
  outline: 2px solid var(--brand);
  outline-offset: 2px;
  border-radius: 4px;
}

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

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

/* ============================================================
   layout — 全站骨架
   ============================================================ */

.site-header {
  position: sticky;
  top: 0;
  z-index: 30;
  background-color: rgba(255, 255, 255, 0.96);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(6px);
}

.header-inner {
  max-width: var(--container);
  margin: 0 auto;
  padding: 12px 24px;
  display: flex;
  align-items: center;
  gap: 20px;
  min-height: 66px;
}

.brand {
  display: flex;
  flex-direction: column;
  gap: 2px;
  flex: 0 0 auto;
  color: var(--ink-strong);
}

.brand-name {
  font-size: 20px;
  font-weight: 600;
  line-height: 1.2;
  letter-spacing: 0;
}

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

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

.nav-list {
  display: flex;
  align-items: center;
  gap: 6px;
}

.nav-list > li > a {
  display: inline-flex;
  align-items: center;
  min-height: 40px;
  padding: 0 14px;
  border-radius: var(--radius-card);
  color: var(--ink-body);
  font-size: 15px;
  border: 1px solid transparent;
}

.nav-list > li > a:hover {
  background-color: var(--line);
  color: var(--ink-strong);
}

.nav-list > li > a.is-current {
  color: var(--brand);
  background-color: var(--line);
  border-color: var(--line-strong);
  font-weight: 600;
}

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

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

.site-main {
  display: block;
}

.home-main {
  padding-bottom: 8px;
}

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

.breadcrumb {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  font-size: 13px;
  color: var(--ink-muted);
  padding: 4px 0 12px;
}

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

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

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

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

.page-header {
  padding-bottom: 22px;
  margin-bottom: 26px;
  border-bottom: 1px solid var(--line);
}

.page-title {
  font-size: 32px;
  font-weight: 600;
  color: var(--ink-strong);
  margin-bottom: 10px;
}

.page-description {
  max-width: 760px;
  font-size: 15px;
  line-height: 1.8;
  color: var(--ink-muted);
}

.section {
  padding: 34px 0;
  border-bottom: 1px solid var(--line);
}

.home-main > .section {
  max-width: var(--container);
  margin: 0 auto;
  padding-left: 24px;
  padding-right: 24px;
}

.home-main > .section:last-of-type {
  border-bottom: 0;
}

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

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

.section-desc {
  margin-top: 8px;
  font-size: 14px;
  line-height: 1.75;
  color: var(--ink-muted);
  max-width: 780px;
}

.section-intro {
  margin: 8px 0 20px;
  font-size: 14px;
  line-height: 1.75;
  color: var(--ink-muted);
  max-width: 780px;
}

.section-lead {
  margin: 8px 0 18px;
  font-size: 15px;
  line-height: 1.8;
  color: var(--ink-muted);
  max-width: 780px;
}

.section-note {
  margin-top: 18px;
  font-size: 13px;
  line-height: 1.75;
  color: var(--ink-muted);
}

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

.content-section {
  padding: 26px 0;
  border-bottom: 1px solid var(--line);
}

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

.content-section .section-title {
  font-size: 22px;
}

.content-section p {
  margin-bottom: 12px;
  font-size: 15px;
  line-height: 1.85;
}

.content-section p:last-child {
  margin-bottom: 0;
}

.subsection-title {
  font-size: 16px;
  font-weight: 600;
  color: var(--ink-strong);
  margin-bottom: 10px;
}

.col-title {
  font-size: 16px;
  font-weight: 600;
  color: var(--ink-strong);
  margin-bottom: 8px;
}

.col-desc {
  font-size: 14px;
  line-height: 1.78;
  color: var(--ink-muted);
  margin-bottom: 14px;
}

/* ============================================================
   components — 通用组件
   ============================================================ */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0 20px;
  border-radius: var(--radius-card);
  font-size: 15px;
  font-weight: 600;
  border: 1px solid transparent;
  cursor: pointer;
}

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

.btn-primary:hover {
  background-color: #256A5E;
  border-color: #256A5E;
  color: #FFFFFF;
}

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

.btn-ghost:hover {
  background-color: var(--line);
  color: var(--ink-strong);
  border-color: var(--brand-soft);
}

.tag {
  display: inline-flex;
  align-items: center;
  min-height: 22px;
  padding: 0 8px;
  border-radius: var(--radius-pill);
  font-size: 12px;
  line-height: 1.4;
  white-space: nowrap;
}

.tag-genre {
  background-color: var(--line);
  color: var(--brand);
}

.tag-status {
  background-color: #F1F6F4;
  color: var(--ink-muted);
  border: 1px solid var(--line);
}

/* 表格：字段口径 / 变更记录 */
.field-table,
.change-table {
  width: 100%;
  background-color: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: var(--radius-card);
  overflow: hidden;
  font-size: 14px;
}

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

.field-table th,
.field-table td,
.change-table th,
.change-table td {
  padding: 12px 16px;
  text-align: left;
  vertical-align: top;
  border-bottom: 1px solid var(--line);
  line-height: 1.7;
}

.field-table thead th,
.change-table thead th {
  background-color: #F1F6F4;
  color: var(--ink-strong);
  font-weight: 600;
  white-space: nowrap;
}

.field-table tbody tr:last-child td,
.change-table tbody tr:last-child td {
  border-bottom: 0;
}

.field-table td:first-child,
.change-table td:first-child {
  color: var(--ink-strong);
  font-weight: 600;
  white-space: nowrap;
}

/* 时间 / 日期数字等宽 */
.update-date,
.archive-date,
.rank-no,
.plan-index,
.step-index,
.meta-value {
  font-variant-numeric: tabular-nums;
  font-feature-settings: "tnum" 1;
}

/* ============================================================
   pages — 首页
   ============================================================ */

/* 首屏索引区 */
.hero {
  background-color: var(--bg-card);
  border-bottom: 1px solid var(--line);
}

.hero-inner {
  max-width: var(--container);
  margin: 0 auto;
  padding: 40px 24px 44px;
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
  gap: 40px;
  align-items: start;
}

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

.hero-kicker {
  display: inline-block;
  margin-bottom: 14px;
  padding: 4px 12px;
  border-radius: var(--radius-pill);
  background-color: var(--line);
  color: var(--brand);
  font-size: 13px;
  line-height: 1.6;
}

.hero-title {
  font-size: 34px;
  font-weight: 600;
  line-height: 1.3;
  color: var(--ink-strong);
  margin-bottom: 16px;
}

.hero-summary {
  font-size: 15px;
  line-height: 1.85;
  color: var(--ink-muted);
  max-width: 560px;
  margin-bottom: 20px;
}

.hero-quick {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 24px;
}

.hero-quick li > a {
  display: inline-flex;
  align-items: center;
  min-height: 36px;
  padding: 0 14px;
  border-radius: var(--radius-pill);
  border: 1px solid var(--line-strong);
  background-color: var(--bg-page);
  color: var(--ink-body);
  font-size: 14px;
}

.hero-quick li > a:hover {
  border-color: var(--brand-soft);
  background-color: var(--line);
  color: var(--brand);
}

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

.hero-visual {
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.hero-figure {
  border: 1px solid var(--line);
  border-radius: var(--radius-card);
  overflow: hidden;
  background-color: var(--bg-page);
}

.hero-figure img {
  width: 100%;
  height: 260px;
  object-fit: cover;
}

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

.hero-covers .cover-card {
  border: 1px solid var(--line);
  border-radius: var(--radius-card);
  overflow: hidden;
  background-color: var(--bg-page);
}

.hero-covers .cover-card img {
  width: 100%;
  height: 150px;
  object-fit: cover;
}

.hero-covers .cover-card figcaption {
  padding: 10px 12px;
  font-size: 13px;
  color: var(--ink-body);
  background-color: var(--bg-card);
}

/* 题材方向索引 */
.genre-columns {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 18px;
}

.genre-box {
  background-color: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: var(--radius-card);
  padding: 18px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.genre-name {
  font-size: 16px;
  font-weight: 600;
  color: var(--ink-strong);
}

.genre-desc {
  font-size: 13px;
  line-height: 1.75;
  color: var(--ink-muted);
}

.genre-picks {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding-top: 10px;
  border-top: 1px solid var(--line);
}

.genre-picks li > a {
  display: block;
  font-size: 13px;
  line-height: 1.7;
  color: var(--ink-body);
  padding: 2px 0;
}

.genre-picks li > a:hover {
  color: var(--brand);
}

/* 封面墙与作品条目 */
.cover-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

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

.cover-item:hover {
  border-color: var(--brand-soft);
  box-shadow: var(--shadow-hover);
}

.cover-figure {
  background-color: var(--line);
}

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

.cover-name {
  font-size: 15px;
  font-weight: 600;
  padding: 12px 14px 6px;
  line-height: 1.5;
}

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

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

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

/* 最近更新记录 */
.update-list {
  display: flex;
  flex-direction: column;
  background-color: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: var(--radius-card);
  overflow: hidden;
}

.update-row {
  display: grid;
  grid-template-columns: 108px minmax(0, 1.4fr) 120px 96px;
  gap: 14px;
  align-items: center;
  padding: 12px 16px;
  border-bottom: 1px solid var(--line);
  font-size: 14px;
}

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

.update-row:hover {
  background-color: #F1F6F4;
}

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

.update-name {
  color: var(--ink-strong);
  font-weight: 600;
  min-width: 0;
  overflow-wrap: anywhere;
}

.update-genre {
  color: var(--brand);
  font-size: 13px;
}

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

/* 人气榜单与编辑选题 */
.rank-editor-cols {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: 22px;
  align-items: start;
}

.rank-col,
.editor-col {
  background-color: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: var(--radius-card);
  padding: 20px;
}

.rank-list {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.rank-item {
  display: grid;
  grid-template-columns: 32px minmax(0, 1fr) minmax(0, 130px);
  gap: 10px;
  align-items: center;
  padding: 10px 8px;
  border-bottom: 1px dashed var(--line);
  font-size: 14px;
}

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

.rank-item:hover {
  background-color: #F1F6F4;
  border-radius: 6px;
}

.rank-no {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 26px;
  height: 26px;
  border-radius: 6px;
  background-color: var(--line);
  color: var(--brand);
  font-size: 13px;
  font-weight: 600;
}

.rank-name {
  color: var(--ink-strong);
  font-weight: 600;
  min-width: 0;
  overflow-wrap: anywhere;
}

.rank-note {
  font-size: 12px;
  color: var(--ink-muted);
  text-align: right;
}

.editor-col {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.editor-col .col-title,
.editor-col .col-desc {
  margin: 0;
}

.topic-card {
  border: 1px solid var(--line);
  border-radius: var(--radius-card);
  padding: 16px;
  background-color: var(--bg-page);
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.topic-card:hover {
  border-color: var(--brand-soft);
}

.topic-name {
  font-size: 15px;
  font-weight: 600;
  color: var(--ink-strong);
}

.topic-scope,
.topic-range {
  font-size: 13px;
  line-height: 1.7;
  color: var(--ink-muted);
}

.topic-link {
  font-size: 13px;
  font-weight: 600;
  align-self: flex-start;
  padding: 4px 0;
}

/* 条目字段与收录边界摘要 */
.field-boundary-cols {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: 22px;
  align-items: start;
}

.field-col,
.boundary-col {
  min-width: 0;
}

.boundary-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
  background-color: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: var(--radius-card);
  padding: 16px 18px;
}

.boundary-list li {
  position: relative;
  padding-left: 16px;
  font-size: 14px;
  line-height: 1.75;
  color: var(--ink-body);
}

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

/* 站内栏目索引 */
.index-columns {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 16px;
}

.index-box {
  background-color: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: var(--radius-card);
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.index-box:hover {
  border-color: var(--brand-soft);
  box-shadow: var(--shadow-card);
}

.index-name {
  font-size: 15px;
  font-weight: 600;
}

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

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

.index-desc {
  font-size: 13px;
  line-height: 1.7;
  color: var(--ink-muted);
}

/* ============================================================
   pages — 内页共用布局
   ============================================================ */

.page-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 260px;
  gap: 32px;
  align-items: start;
}

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

.page-aside {
  display: flex;
  flex-direction: column;
  gap: 18px;
  position: sticky;
  top: 88px;
}

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

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

.aside-list,
.aside-nav-list {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.aside-list li > a,
.aside-nav-list li > a {
  display: block;
  padding: 6px 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--ink-body);
  border-bottom: 1px dashed var(--line);
}

.aside-list li:last-child > a,
.aside-nav-list li:last-child > a {
  border-bottom: 0;
}

.aside-list li > a:hover,
.aside-nav-list li > a:hover {
  color: var(--brand);
}

.aside-text {
  font-size: 13px;
  line-height: 1.75;
  color: var(--ink-muted);
}

.aside-note p {
  font-size: 13px;
  line-height: 1.75;
  color: var(--ink-muted);
}

/* 摘要栏在前的两栏布局 */
.sidebar-left .page-layout {
  grid-template-columns: 260px minmax(0, 1fr);
}

.sidebar-left .page-aside {
  order: -1;
}

/* ============================================================
   pages — 更新与专题
   ============================================================ */

.update-timeline {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.update-day {
  border-left: 2px solid var(--line-strong);
  padding-left: 18px;
}

.update-day-title {
  font-size: 15px;
  font-weight: 600;
  color: var(--brand);
  margin-bottom: 12px;
}

.update-day .update-list {
  border-radius: var(--radius-card);
}

.update-day .update-row {
  grid-template-columns: 96px minmax(0, 1.5fr) 110px 84px;
}

.section-topics .topic-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.topic-grid .topic-card {
  background-color: var(--bg-card);
  overflow: hidden;
  padding: 0;
  gap: 0;
}

.topic-grid .topic-figure {
  background-color: var(--line);
}

.topic-grid .topic-figure img {
  width: 100%;
  height: 150px;
  object-fit: cover;
}

.topic-grid .topic-name {
  padding: 14px 16px 6px;
}

.topic-grid .topic-desc {
  padding: 0 16px 10px;
  font-size: 13px;
  line-height: 1.75;
  color: var(--ink-muted);
}

.topic-meta {
  display: grid;
  grid-template-columns: 76px minmax(0, 1fr);
  gap: 4px 10px;
  padding: 10px 16px 16px;
  margin: 0;
  border-top: 1px solid var(--line);
  font-size: 13px;
}

.meta-label {
  color: var(--ink-muted);
}

.meta-value {
  margin: 0;
  color: var(--ink-body);
}

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

.archive-month {
  background-color: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: var(--radius-card);
  padding: 18px;
}

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

.archive-items {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.archive-item {
  display: grid;
  grid-template-columns: 88px minmax(0, 1fr);
  gap: 12px;
  font-size: 14px;
  line-height: 1.7;
}

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

.plan-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
  counter-reset: plan;
}

.plan-step {
  display: grid;
  grid-template-columns: 36px minmax(0, 1fr);
  gap: 12px;
  align-items: start;
  background-color: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: var(--radius-card);
  padding: 16px;
  font-size: 14px;
  line-height: 1.75;
}

.plan-index {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 30px;
  height: 30px;
  border-radius: 6px;
  background-color: var(--line);
  color: var(--brand);
  font-size: 13px;
  font-weight: 600;
}

/* ============================================================
   pages — 题材方向
   ============================================================ */

.section-genre-overview .genre-overview-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
}

.genre-overview-card {
  background-color: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: var(--radius-card);
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.genre-overview-card .genre-scope {
  font-size: 12px;
  line-height: 1.7;
  color: var(--brand);
  padding-top: 8px;
  border-top: 1px dashed var(--line);
}

.cover-group {
  margin-bottom: 26px;
}

.cover-group:last-of-type {
  margin-bottom: 0;
}

.cover-group-title {
  font-size: 16px;
  font-weight: 600;
  color: var(--ink-strong);
  margin-bottom: 12px;
  padding-left: 10px;
  border-left: 3px solid var(--brand-soft);
}

.cover-group .cover-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

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

.cover-group .cover-card:hover {
  border-color: var(--brand-soft);
  box-shadow: var(--shadow-hover);
}

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

.cover-group .cover-name {
  font-size: 14px;
  padding: 10px 12px 4px;
}

.cover-group .cover-meta {
  padding: 0 12px 12px;
}

.cover-genre {
  font-size: 12px;
  color: var(--brand);
  padding: 0 12px 6px;
}

.cover-status {
  font-size: 12px;
  color: var(--ink-muted);
  padding: 0 12px 12px;
}

.section-status .status-list {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.status-item {
  background-color: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: var(--radius-card);
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.status-badge {
  display: inline-flex;
  align-items: center;
  align-self: flex-start;
  min-height: 24px;
  padding: 0 10px;
  border-radius: var(--radius-pill);
  font-size: 12px;
  font-weight: 600;
}

.status-badge.is-ongoing {
  background-color: #E4F3EE;
  color: #1F6B5C;
}

.status-badge.is-completed {
  background-color: var(--line);
  color: var(--ink-body);
}

.status-badge.is-sorting {
  background-color: #FBEDEB;
  color: var(--alert);
}

.status-desc {
  font-size: 13px;
  line-height: 1.75;
  color: var(--ink-muted);
}

/* 方向内条目字段：div 表格 */
.section-genre-fields .field-table {
  border: 1px solid var(--line);
  border-radius: var(--radius-card);
  overflow: hidden;
  background-color: var(--bg-card);
}

.field-row {
  display: grid;
  grid-template-columns: 130px minmax(0, 1.2fr) minmax(0, 1fr);
}

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

.field-row.field-head {
  background-color: #F1F6F4;
  font-weight: 600;
  color: var(--ink-strong);
}

.field-cell {
  padding: 12px 16px;
  font-size: 14px;
  line-height: 1.7;
  min-width: 0;
  overflow-wrap: anywhere;
}

.field-row:not(.field-head) .field-cell:first-child {
  color: var(--ink-strong);
  font-weight: 600;
}

/* ============================================================
   pages — 阅读说明
   ============================================================ */

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

.content-figure img {
  width: 100%;
  height: 240px;
  object-fit: cover;
}

.content-figure figcaption {
  padding: 10px 14px;
  border-top: 1px solid var(--line);
}

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

.genre-rule-col {
  background-color: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: var(--radius-card);
  padding: 18px;
}

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

.rule-list li {
  position: relative;
  padding-left: 16px;
  font-size: 14px;
  line-height: 1.75;
  color: var(--ink-body);
}

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

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

.step-item {
  display: grid;
  grid-template-columns: 40px minmax(0, 1fr);
  grid-template-rows: auto auto;
  column-gap: 12px;
  row-gap: 4px;
  background-color: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: var(--radius-card);
  padding: 16px;
}

.step-index {
  grid-row: 1 / span 2;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  border-radius: 6px;
  background-color: var(--line);
  color: var(--brand);
  font-size: 13px;
  font-weight: 600;
}

.step-title {
  font-size: 15px;
  font-weight: 600;
  color: var(--ink-strong);
  align-self: center;
}

.step-desc {
  grid-column: 2;
  font-size: 14px;
  line-height: 1.75;
  color: var(--ink-muted);
}

.faq-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.faq-item {
  background-color: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: var(--radius-card);
  padding: 0 18px;
}

.faq-item[open] {
  border-color: var(--brand-soft);
}

.faq-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  min-height: 52px;
  padding: 12px 0;
  font-size: 15px;
  font-weight: 600;
  color: var(--ink-strong);
  cursor: pointer;
  list-style: none;
}

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

.faq-question::after {
  content: "+";
  flex: 0 0 auto;
  width: 22px;
  height: 22px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background-color: var(--line);
  color: var(--brand);
  font-size: 15px;
  font-weight: 600;
  line-height: 1;
}

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

.faq-answer {
  padding: 12px 0 16px;
  font-size: 14px;
  line-height: 1.8;
  color: var(--ink-muted);
  border-top: 1px solid var(--line);
}

/* ============================================================
   pages — 收录边界
   ============================================================ */

.section-media {
  margin: 0 0 20px;
  border: 1px solid var(--line);
  border-radius: var(--radius-card);
  overflow: hidden;
  background-color: var(--bg-card);
}

.section-media img {
  width: 100%;
  height: 220px;
  object-fit: cover;
}

.section-media figcaption {
  padding: 10px 14px;
  border-top: 1px solid var(--line);
}

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

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

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

.scope-list li {
  position: relative;
  padding-left: 16px;
  font-size: 14px;
  line-height: 1.75;
  color: var(--ink-body);
}

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

.exclude-list {
  display: flex;
  flex-direction: column;
  background-color: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: var(--radius-card);
  overflow: hidden;
}

.exclude-row {
  padding: 14px 18px;
  border-bottom: 1px solid var(--line);
}

.exclude-row:last-child {
  border-bottom: 0;
}

.exclude-title {
  font-size: 15px;
  font-weight: 600;
  color: var(--ink-strong);
  margin-bottom: 4px;
}

.exclude-desc {
  font-size: 14px;
  line-height: 1.75;
  color: var(--ink-muted);
}

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

.related-item a {
  display: block;
  padding: 14px 16px;
  min-height: 44px;
  background-color: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: var(--radius-card);
  font-size: 14px;
  color: var(--ink-body);
}

.related-item a:hover {
  border-color: var(--brand-soft);
  color: var(--brand);
}

/* ============================================================
   pages — 404
   ============================================================ */

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

.error-inner {
  max-width: 640px;
}

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

.error-lead {
  font-size: 15px;
  line-height: 1.85;
  color: var(--ink-muted);
  margin-bottom: 26px;
}

.error-subtitle {
  font-size: 18px;
  font-weight: 600;
  color: var(--ink-strong);
  margin-bottom: 14px;
}

.error-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  margin-bottom: 26px;
}

.error-list li > a {
  display: block;
  padding: 14px 16px;
  min-height: 44px;
  background-color: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: var(--radius-card);
  font-size: 14px;
  color: var(--ink-body);
}

.error-list li > a:hover {
  border-color: var(--brand-soft);
  color: var(--brand);
}

.error-home-link {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 0 20px;
  border-radius: var(--radius-card);
  background-color: var(--brand);
  color: #FFFFFF;
  font-size: 15px;
  font-weight: 600;
}

.error-home-link:hover {
  background-color: #256A5E;
  color: #FFFFFF;
}

/* ============================================================
   全站页脚
   ============================================================ */

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

.footer-inner {
  max-width: var(--container);
  margin: 0 auto;
  padding: 40px 24px 28px;
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) repeat(3, minmax(0, 1fr));
  gap: 28px;
}

.footer-brand-name {
  font-size: 18px;
  font-weight: 600;
  color: var(--ink-strong);
  margin-bottom: 6px;
}

.footer-brand-desc {
  font-size: 13px;
  line-height: 1.75;
  color: var(--ink-muted);
  max-width: 320px;
}

.footer-group-title {
  font-size: 14px;
  font-weight: 600;
  color: var(--ink-strong);
  margin-bottom: 12px;
}

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

.footer-list li > a {
  display: inline-block;
  padding: 4px 0;
  min-height: 28px;
  font-size: 13px;
  line-height: 1.7;
  color: var(--ink-muted);
}

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

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

.footer-copy {
  max-width: var(--container);
  margin: 0 auto;
  padding: 16px 24px 22px;
  font-size: 12px;
  line-height: 1.7;
  color: var(--ink-muted);
}

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

@media (max-width: 1024px) {
  .genre-columns,
  .section-genre-overview .genre-overview-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .index-columns {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

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

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

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

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

@media (max-width: 768px) {
  body.site-body {
    font-size: 15px;
  }

  .header-inner {
    padding: 10px 16px;
    min-height: 60px;
    flex-wrap: wrap;
  }

  .nav-toggle {
    display: inline-flex;
  }

  .site-nav {
    flex: 1 0 100%;
    margin-left: 0;
    order: 3;
  }

  .nav-list {
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 4px;
    padding: 8px 0 4px;
    border-top: 1px solid var(--line);
  }

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

  .nav-list > li > a {
    min-height: 46px;
    padding: 0 12px;
    border: 1px solid var(--line);
    font-size: 15px;
  }

  .inner-main {
    padding: 18px 16px 40px;
  }

  .home-main > .section {
    padding-left: 16px;
    padding-right: 16px;
  }

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

  .page-header {
    padding-bottom: 16px;
    margin-bottom: 20px;
  }

  .section,
  .content-section {
    padding: 24px 0;
  }

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

  .content-section .section-title {
    font-size: 19px;
  }

  .hero-inner {
    grid-template-columns: minmax(0, 1fr);
    gap: 24px;
    padding: 26px 16px 30px;
  }

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

  .hero-figure img {
    height: 200px;
  }

  .hero-covers .cover-card img {
    height: 130px;
  }

  .hero-actions .btn {
    flex: 1 1 auto;
  }

  .genre-columns,
  .section-genre-overview .genre-overview-grid,
  .section-status .status-list {
    grid-template-columns: minmax(0, 1fr);
  }

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

  .cover-figure img,
  .cover-group .cover-figure img {
    height: 150px;
  }

  .rank-editor-cols,
  .field-boundary-cols,
  .two-col,
  .genre-rule-grid,
  .step-list,
  .archive-list,
  .plan-list,
  .section-topics .topic-grid {
    grid-template-columns: minmax(0, 1fr);
  }

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

  .update-row,
  .update-day .update-row {
    grid-template-columns: minmax(0, 1fr);
    gap: 4px;
    padding: 12px 14px;
  }

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

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

  .rank-note {
    grid-column: 2;
    text-align: left;
  }

  .page-layout {
    grid-template-columns: minmax(0, 1fr);
    gap: 22px;
  }

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

  .sidebar-left .page-aside {
    order: 0;
  }

  .page-aside {
    position: static;
    top: auto;
  }

  .field-row {
    grid-template-columns: 96px minmax(0, 1fr);
  }

  .field-row .field-cell:last-child {
    grid-column: 2;
    padding-top: 0;
  }

  .field-table,
  .change-table {
    font-size: 13px;
  }

  .field-table th,
  .field-table td,
  .change-table th,
  .change-table td {
    padding: 10px 12px;
  }

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

  .footer-inner {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 22px;
    padding: 30px 16px 20px;
  }

  .footer-brand {
    grid-column: 1 / -1;
  }

  .footer-copy {
    padding: 14px 16px 20px;
  }

  .error-main {
    padding: 40px 16px 52px;
  }

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

@media (max-width: 480px) {
  .index-columns {
    grid-template-columns: minmax(0, 1fr);
  }

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

  .cover-group .cover-name,
  .cover-group .cover-meta {
    padding-left: 10px;
    padding-right: 10px;
  }

  .archive-item {
    grid-template-columns: 74px minmax(0, 1fr);
    gap: 10px;
  }

  .step-item,
  .plan-step {
    grid-template-columns: 34px minmax(0, 1fr);
  }
}

/* 轻微滚动出现动效，仅作为增强，不影响初始可见性 */
@media (prefers-reduced-motion: no-preference) {
  .cover-item,
  .topic-card,
  .index-box,
  .genre-box {
    transition: transform 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
  }

  .cover-item:hover,
  .topic-card:hover,
  .index-box:hover {
    transform: translateY(-2px);
  }
}