/* ============================================================
   歪歪漫画 · 整站样式表
   开发者文档风：冷白背景 / 等宽标签 / 蓝绿状态色
   ============================================================ */

/* ------------------------------------------------------------
   Base · 基础变量与元素样式
   ------------------------------------------------------------ */
:root {
  --bg-page: #F7F9FB;
  --bg-card: #FFFFFF;
  --text-main: #1B2A3A;
  --text-sub: #5A6E82;
  --accent-teal: #00A6A6;
  --accent-blue: #2F80ED;
  --status-green: #27AE60;
  --border-line: #E6ECF2;

  --font-sans: "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
  --font-mono: "SFMono-Regular", Consolas, "Liberation Mono", monospace;

  --container-w: 1200px;
  --sidebar-w: 230px;
  --main-w: 960px;
  --radius-sm: 4px;
  --radius-md: 6px;
  --radius-lg: 8px;

  --header-h: 64px;
  --space-section: 56px;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.8;
  color: var(--text-main);
  background-color: var(--bg-page);
}

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

a {
  color: var(--accent-teal);
  text-decoration: none;
  transition: color 0.2s ease;
}

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

ul, ol {
  list-style: none;
}

h1, h2, h3, h4 {
  font-weight: 600;
  line-height: 1.4;
  color: var(--text-main);
}

h1 { font-size: 28px; }
h2 { font-size: 24px; }
h3 { font-size: 18px; }

code, pre {
  font-family: var(--font-mono);
  font-size: 13px;
}

/* 等宽数字与标签 */
.rank-num,
.rank-no,
.step-num,
.tag-code,
.timeline-date,
.sidebar-title,
.section-desc,
.filter-tag,
.tag-chip,
.work-meta,
.card-status,
.rank-tags,
.status-dot,
.heat-bar {
  font-family: var(--font-mono);
}

/* ------------------------------------------------------------
   Layout · 全站布局骨架
   ------------------------------------------------------------ */

/* 统一容器 */
.header-inner,
.hero,
.data-catalog,
.recent-updates,
.popular-side,
.topic-cloud,
.guide-entry,
.citation,
.footer-cols,
.footer-bottom,
.layout-shell,
.page-layout,
.inner-main {
  max-width: var(--container-w);
  margin-left: auto;
  margin-right: auto;
  padding-left: 24px;
  padding-right: 24px;
}

/* 站点主体 */
.site-body {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.site-main {
  flex: 1 0 auto;
}

/* 内页外壳：侧栏在前 */
.sidebar-left {
  display: grid;
  grid-template-columns: var(--sidebar-w) minmax(0, 1fr);
  gap: 32px;
  align-items: start;
  padding-top: 32px;
  padding-bottom: 48px;
}

/* 内页外壳：主内容在前（默认） */
.layout-shell:not(.sidebar-left),
.page-layout:not(.sidebar-left) {
  display: grid;
  grid-template-columns: minmax(0, 1fr) var(--sidebar-w);
  gap: 32px;
  align-items: start;
  padding-top: 32px;
  padding-bottom: 48px;
}

/* 侧栏 */
.page-sidebar,
.sidebar {
  background: var(--bg-card);
  border: 1px solid var(--border-line);
  border-radius: var(--radius-lg);
  padding: 20px;
  position: sticky;
  top: calc(var(--header-h) + 16px);
}

.sidebar-inner {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.sidebar-title,
.sidebar-label {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-sub);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--border-line);
}

.sidebar-nav ul,
.sidebar-list,
.sidebar-links {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.sidebar-nav a,
.sidebar-list a,
.sidebar-links a {
  display: block;
  padding: 8px 10px;
  font-size: 14px;
  color: var(--text-sub);
  border-radius: var(--radius-sm);
  border-left: 2px solid transparent;
  transition: background 0.2s, color 0.2s, border-color 0.2s;
}

.sidebar-nav a:hover,
.sidebar-list a:hover,
.sidebar-links a:hover {
  background: var(--bg-page);
  color: var(--accent-teal);
  border-left-color: var(--accent-teal);
}

.sidebar-nav a.is-current,
.sidebar-list a.is-current,
.sidebar-links a.is-current {
  background: var(--bg-page);
  color: var(--accent-teal);
  border-left-color: var(--accent-teal);
  font-weight: 600;
}

.sidebar-note {
  font-size: 13px;
  color: var(--text-sub);
  line-height: 1.7;
  padding: 12px;
  background: var(--bg-page);
  border-radius: var(--radius-md);
  border-left: 3px solid var(--accent-teal);
}

.sidebar-note a {
  display: inline-block;
  margin-top: 6px;
  font-size: 13px;
  font-weight: 600;
}

/* 主内容区 */
.inner-main {
  min-width: 0;
  width: 100%;
}

/* 面包屑 */
.breadcrumb {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  font-size: 13px;
  color: var(--text-sub);
  margin-bottom: 16px;
}

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

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

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

.breadcrumb-current {
  color: var(--text-main);
  font-weight: 500;
}

/* 页面标题区 */
.page-header {
  margin-bottom: 28px;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--border-line);
}

.page-title {
  font-size: 28px;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 8px;
}

.page-description {
  font-size: 15px;
  color: var(--text-sub);
  max-width: 720px;
}

/* 章节 */
.content-section {
  margin-bottom: 48px;
}

.content-section h2,
.section-title {
  font-size: 24px;
  font-weight: 600;
  color: var(--text-main);
  margin-bottom: 8px;
}

.section-desc,
.section-intro {
  font-size: 14px;
  color: var(--text-sub);
  margin-bottom: 20px;
  max-width: 720px;
}

/* ------------------------------------------------------------
   Components · 通用组件
   ------------------------------------------------------------ */

/* 页头 */
.site-header {
  background: var(--bg-card);
  border-bottom: 1px solid var(--border-line);
  position: sticky;
  top: 0;
  z-index: 100;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--header-h);
  gap: 24px;
}

.brand-link {
  display: flex;
  align-items: baseline;
  gap: 8px;
  flex-shrink: 0;
}

.brand-name {
  font-size: 20px;
  font-weight: 700;
  color: var(--text-main);
  letter-spacing: 0.02em;
}

.brand-tag {
  font-size: 12px;
  color: var(--text-sub);
  font-family: var(--font-mono);
}

.site-nav {
  flex: 1;
  display: flex;
  justify-content: center;
}

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

.nav-list a {
  display: block;
  padding: 8px 14px;
  font-size: 14px;
  color: var(--text-sub);
  border-radius: var(--radius-sm);
  transition: color 0.2s, background 0.2s;
}

.nav-list a:hover {
  color: var(--accent-teal);
  background: var(--bg-page);
}

.nav-list a.is-current {
  color: var(--accent-teal);
  background: var(--bg-page);
  font-weight: 600;
}

.header-cta {
  flex-shrink: 0;
  display: inline-block;
  padding: 8px 18px;
  font-size: 14px;
  font-weight: 600;
  color: #fff;
  background: var(--accent-teal);
  border-radius: var(--radius-md);
  transition: background 0.2s;
}

.header-cta:hover {
  color: #fff;
  background: var(--accent-blue);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  padding: 10px;
  background: none;
  border: 1px solid var(--border-line);
  border-radius: var(--radius-md);
  cursor: pointer;
}

.nav-toggle-line {
  display: block;
  width: 20px;
  height: 2px;
  background: var(--text-main);
  border-radius: 2px;
}

/* 按钮 */
.btn-primary,
.btn-secondary {
  display: inline-block;
  padding: 12px 28px;
  font-size: 15px;
  font-weight: 600;
  border-radius: var(--radius-md);
  transition: background 0.2s, color 0.2s, border-color 0.2s;
}

.btn-primary {
  color: #fff;
  background: var(--accent-teal);
  border: 1px solid var(--accent-teal);
}

.btn-primary:hover {
  color: #fff;
  background: var(--accent-blue);
  border-color: var(--accent-blue);
}

.btn-secondary {
  color: var(--accent-teal);
  background: var(--bg-card);
  border: 1px solid var(--accent-teal);
}

.btn-secondary:hover {
  color: #fff;
  background: var(--accent-teal);
}

/* 卡片通用悬浮 */
.catalog-card,
.work-card,
.tag-card,
.step-card,
.work-card-mini,
.combo-block,
.combo-item,
.revision-item {
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}

.catalog-card:hover,
.work-card:hover,
.tag-card:hover,
.step-card:hover,
.work-card-mini:hover,
.combo-block:hover,
.combo-item:hover,
.revision-item:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 16px rgba(27, 42, 58, 0.08);
  border-color: var(--accent-teal);
}

/* 区块说明条 */
.rank-note,
.filter-note,
.sidebar-note,
.nav-links-card {
  background: var(--bg-card);
  border: 1px solid var(--border-line);
  border-left: 3px solid var(--accent-teal);
  border-radius: var(--radius-md);
  padding: 16px;
  font-size: 14px;
  color: var(--text-sub);
}

/* 代码块 */
.code-block,
pre.code-block {
  background: var(--bg-page);
  border: 1px solid var(--border-line);
  border-radius: var(--radius-md);
  padding: 14px 16px;
  font-family: var(--font-mono);
  font-size: 13px;
  line-height: 1.7;
  color: var(--text-main);
  overflow-x: auto;
  max-width: 100%;
  word-break: break-all;
  white-space: pre-wrap;
}

/* 图片容器 */
figure {
  margin: 0;
}

.hero-figure img,
.work-cover img,
.rank-cover img,
.card-cover img,
.tag-figure img,
.media-figure img,
.cite-figure img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* ------------------------------------------------------------
   首页 · 页面专属样式
   ------------------------------------------------------------ */

/* Hero */
.hero {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 48px;
  align-items: center;
  padding-top: 56px;
  padding-bottom: 56px;
}

.hero-copy h1 {
  font-size: 32px;
  font-weight: 700;
  margin-bottom: 16px;
  line-height: 1.3;
}

.hero-lead {
  font-size: 16px;
  color: var(--text-sub);
  margin-bottom: 28px;
  max-width: 480px;
}

.hero-actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.hero-figure {
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--border-line);
  aspect-ratio: 4 / 3;
}

.hero-figure img {
  object-fit: cover;
}

/* 数据目录 */
.data-catalog {
  padding-top: var(--space-section);
  padding-bottom: var(--space-section);
  border-top: 1px solid var(--border-line);
}

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

.catalog-card {
  background: var(--bg-card);
  border: 1px solid var(--border-line);
  border-radius: var(--radius-lg);
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

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

.catalog-card p {
  font-size: 14px;
  color: var(--text-sub);
  flex: 1;
}

.catalog-card a {
  font-size: 14px;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

.catalog-card a::after {
  content: "→";
  transition: transform 0.2s;
}

.catalog-card a:hover::after {
  transform: translateX(4px);
}

/* 最近更新 */
.recent-updates {
  padding-top: var(--space-section);
  padding-bottom: var(--space-section);
  border-top: 1px solid var(--border-line);
}

.timeline-list {
  display: flex;
  flex-direction: column;
}

.timeline-item {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 12px 0;
  border-bottom: 1px solid var(--border-line);
}

.timeline-item time {
  font-size: 13px;
  color: var(--text-sub);
  flex-shrink: 0;
  min-width: 90px;
}

.timeline-action {
  font-size: 13px;
  color: var(--status-green);
  font-weight: 600;
  flex-shrink: 0;
  min-width: 64px;
}

.timeline-item a {
  font-size: 15px;
  font-weight: 500;
}

.section-more {
  display: inline-block;
  margin-top: 20px;
  font-size: 14px;
  font-weight: 600;
}

/* 人气榜 */
.popular-side {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 40px;
  padding-top: var(--space-section);
  padding-bottom: var(--space-section);
  border-top: 1px solid var(--border-line);
}

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

.rank-item {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 12px 0;
  border-bottom: 1px solid var(--border-line);
}

.rank-num {
  font-size: 20px;
  font-weight: 700;
  color: var(--accent-teal);
  min-width: 32px;
  text-align: center;
}

.rank-item img {
  width: 56px;
  height: 72px;
  object-fit: cover;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-line);
  flex-shrink: 0;
}

.rank-info {
  flex: 1;
  min-width: 0;
}

.rank-info h3 {
  font-size: 15px;
  font-weight: 600;
  margin-bottom: 2px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.rank-tag {
  font-size: 12px;
  color: var(--text-sub);
}

.rank-bar {
  display: block;
  width: 80px;
  height: 6px;
  background: var(--border-line);
  border-radius: 3px;
  position: relative;
  flex-shrink: 0;
}

.rank-bar::after {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  height: 100%;
  background: var(--accent-teal);
  border-radius: 3px;
}

/* 题材标签云 */
.topic-cloud {
  padding-top: var(--space-section);
  padding-bottom: var(--space-section);
  border-top: 1px solid var(--border-line);
}

.cloud-group {
  margin-bottom: 20px;
}

.cloud-group h3 {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-sub);
  margin-bottom: 8px;
  font-family: var(--font-mono);
}

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

.cloud-tags a {
  display: inline-block;
  padding: 4px 12px;
  font-size: 13px;
  font-family: var(--font-mono);
  color: var(--text-sub);
  background: var(--bg-card);
  border: 1px solid var(--border-line);
  border-radius: var(--radius-sm);
  transition: color 0.2s, border-color 0.2s, background 0.2s;
}

.cloud-tags a:hover {
  color: var(--accent-teal);
  border-color: var(--accent-teal);
  background: var(--bg-page);
}

/* 阅读指引入口 */
.guide-entry {
  padding-top: var(--space-section);
  padding-bottom: var(--space-section);
  border-top: 1px solid var(--border-line);
}

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

.step-card {
  background: var(--bg-card);
  border: 1px solid var(--border-line);
  border-radius: var(--radius-lg);
  padding: 20px;
  position: relative;
}

.step-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  font-size: 14px;
  font-weight: 700;
  color: #fff;
  background: var(--accent-teal);
  border-radius: var(--radius-sm);
  margin-bottom: 12px;
}

.step-card h3 {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 6px;
}

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

/* 引用说明 */
.citation {
  padding-top: var(--space-section);
  padding-bottom: var(--space-section);
  border-top: 1px solid var(--border-line);
}

.citation-rules {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.citation-rules p {
  font-size: 14px;
  color: var(--text-sub);
  padding: 12px 16px;
  background: var(--bg-card);
  border: 1px solid var(--border-line);
  border-left: 3px solid var(--accent-teal);
  border-radius: var(--radius-md);
}

/* ------------------------------------------------------------
   内页 · 资料库
   ------------------------------------------------------------ */

/* 筛选标签 */
.filter-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 12px;
}

.filter-tag {
  display: inline-block;
  padding: 6px 14px;
  font-size: 13px;
  color: var(--text-sub);
  background: var(--bg-card);
  border: 1px solid var(--border-line);
  border-radius: var(--radius-sm);
  transition: color 0.2s, border-color 0.2s, background 0.2s;
}

.filter-tag:hover,
.filter-tag.is-active {
  color: #fff;
  background: var(--accent-teal);
  border-color: var(--accent-teal);
}

.filter-note {
  font-size: 13px;
}

.filter-note a {
  font-weight: 600;
}

/* 作品卡网格 */
.work-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

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

.work-cover {
  aspect-ratio: 3 / 4;
  border-bottom: 1px solid var(--border-line);
  overflow: hidden;
}

.work-cover img {
  transition: transform 0.3s ease;
}

.work-card:hover .work-cover img {
  transform: scale(1.03);
}

.work-info {
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 6px;
  flex: 1;
}

.work-name {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 4px;
}

.work-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.tag-chip {
  display: inline-block;
  padding: 2px 8px;
  font-size: 12px;
  color: var(--accent-teal);
  background: var(--bg-page);
  border: 1px solid var(--border-line);
  border-radius: var(--radius-sm);
}

.work-meta {
  font-size: 12px;
  color: var(--text-sub);
  display: flex;
  align-items: center;
  gap: 6px;
}

.status-dot {
  display: inline-block;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--status-green);
}

.status-active .status-dot,
.status-done .status-dot {
  background: var(--status-green);
}

.work-summary {
  font-size: 13px;
  color: var(--text-sub);
  line-height: 1.6;
  margin-top: 4px;
}

/* 字段说明表 */
.table-wrap {
  overflow-x: auto;
  background: var(--bg-card);
  border: 1px solid var(--border-line);
  border-radius: var(--radius-lg);
}

.field-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
}

.field-table thead th {
  background: var(--bg-page);
  padding: 12px 16px;
  text-align: left;
  font-weight: 600;
  color: var(--text-main);
  border-bottom: 2px solid var(--border-line);
  white-space: nowrap;
}

.field-table tbody td {
  padding: 12px 16px;
  border-bottom: 1px solid var(--border-line);
  color: var(--text-sub);
}

.field-table tbody tr:last-child td {
  border-bottom: none;
}

.field-table tbody tr:hover {
  background: var(--bg-page);
}

/* 相关入口 */
.entry-links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.entry-link {
  display: inline-block;
  padding: 10px 20px;
  font-size: 14px;
  font-weight: 600;
  color: var(--accent-teal);
  background: var(--bg-card);
  border: 1px solid var(--accent-teal);
  border-radius: var(--radius-md);
  transition: background 0.2s, color 0.2s;
}

.entry-link:hover {
  color: #fff;
  background: var(--accent-teal);
}

/* ------------------------------------------------------------
   内页 · 题材字典
   ------------------------------------------------------------ */

/* 字母索引 */
.alphabet-list {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.alphabet-list a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 36px;
  height: 36px;
  padding: 0 8px;
  font-size: 14px;
  font-family: var(--font-mono);
  color: var(--text-sub);
  background: var(--bg-card);
  border: 1px solid var(--border-line);
  border-radius: var(--radius-sm);
  transition: color 0.2s, border-color 0.2s, background 0.2s;
}

.alphabet-list a:hover {
  color: var(--accent-teal);
  border-color: var(--accent-teal);
  background: var(--bg-page);
}

/* 题材标签卡片 */
.tag-card-group {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
  margin-bottom: 24px;
}

.tag-card {
  background: var(--bg-card);
  border: 1px solid var(--border-line);
  border-radius: var(--radius-lg);
  padding: 20px;
}

.tag-card-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 8px;
}

.tag-card-head h3 {
  font-size: 17px;
  font-weight: 600;
}

.tag-code {
  font-size: 13px;
  color: var(--accent-teal);
  background: var(--bg-page);
  padding: 2px 8px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-line);
}

.tag-card > p {
  font-size: 14px;
  color: var(--text-sub);
  margin-bottom: 8px;
}

.tag-example {
  font-size: 13px;
  color: var(--text-sub);
  font-family: var(--font-mono);
  background: var(--bg-page);
  padding: 8px 12px;
  border-radius: var(--radius-sm);
  border-left: 3px solid var(--accent-teal);
}

/* 题材配图 */
.tag-image-pair {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  margin-bottom: 24px;
}

.tag-figure {
  border: 1px solid var(--border-line);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

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

.tag-figure figcaption {
  padding: 10px 14px;
  font-size: 13px;
  color: var(--text-sub);
  background: var(--bg-card);
}

/* 标签组合示例 */
.combo-examples {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

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

.combo-block h3 {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 10px;
}

.combo-block pre.code-block {
  margin-top: 8px;
}

.section-link {
  margin-top: 16px;
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.section-link a {
  font-size: 14px;
  font-weight: 600;
}

/* ------------------------------------------------------------
   内页 · 连载动态
   ------------------------------------------------------------ */

/* 时间线 */
.timeline-list {
  display: flex;
  flex-direction: column;
}

.timeline-item {
  display: flex;
  gap: 16px;
  padding: 16px 0;
  border-bottom: 1px solid var(--border-line);
}

.timeline-date {
  font-size: 13px;
  color: var(--text-sub);
  flex-shrink: 0;
  min-width: 90px;
  padding-top: 2px;
}

.timeline-body {
  flex: 1;
  min-width: 0;
}

.timeline-type {
  display: inline-block;
  font-size: 12px;
  font-weight: 600;
  padding: 2px 8px;
  border-radius: var(--radius-sm);
  margin-bottom: 6px;
}

.type-add {
  color: var(--status-green);
  background: rgba(39, 174, 96, 0.1);
}

.type-edit {
  color: var(--accent-blue);
  background: rgba(47, 128, 237, 0.1);
}

.timeline-text {
  font-size: 14px;
  color: var(--text-main);
  margin-bottom: 4px;
}

.timeline-link {
  font-size: 13px;
  font-weight: 600;
}

/* 本周新增 */
.new-works-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}

.work-card-mini {
  display: flex;
  gap: 16px;
  background: var(--bg-card);
  border: 1px solid var(--border-line);
  border-radius: var(--radius-lg);
  padding: 16px;
}

.card-cover {
  width: 80px;
  height: 104px;
  flex-shrink: 0;
  border-radius: var(--radius-sm);
  overflow: hidden;
  border: 1px solid var(--border-line);
}

.card-info {
  flex: 1;
  min-width: 0;
}

.card-title {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 4px;
}

.card-tags {
  font-size: 13px;
  color: var(--accent-teal);
  margin-bottom: 4px;
}

.card-status {
  font-size: 12px;
  color: var(--text-sub);
}

/* 修订说明 */
.revision-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.revision-item {
  background: var(--bg-card);
  border: 1px solid var(--border-line);
  border-radius: var(--radius-md);
  padding: 16px 20px;
}

.revision-title {
  font-size: 15px;
  font-weight: 600;
  margin-bottom: 4px;
}

.revision-text {
  font-size: 14px;
  color: var(--text-sub);
}

/* 相关导航 */
.nav-links-card {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}

.nav-links-card p {
  font-size: 14px;
  color: var(--text-sub);
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.nav-links-card a {
  font-weight: 600;
}

/* ------------------------------------------------------------
   内页 · 人气榜
   ------------------------------------------------------------ */

.rank-section {
  margin-bottom: 48px;
}

.rank-section h2 {
  font-size: 22px;
  font-weight: 600;
  margin-bottom: 8px;
}

.rank-section > p {
  font-size: 14px;
  color: var(--text-sub);
  margin-bottom: 20px;
}

/* 综合榜 */
.rank-list .rank-item {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 12px 0;
  border-bottom: 1px solid var(--border-line);
}

.rank-no {
  font-size: 18px;
  font-weight: 700;
  color: var(--accent-teal);
  min-width: 32px;
  text-align: center;
  flex-shrink: 0;
}

.rank-cover {
  width: 48px;
  height: 64px;
  flex-shrink: 0;
  border-radius: var(--radius-sm);
  overflow: hidden;
  border: 1px solid var(--border-line);
}

.rank-info {
  flex: 1;
  min-width: 0;
}

.rank-info h3 {
  font-size: 15px;
  font-weight: 600;
  margin-bottom: 2px;
}

.rank-tags {
  font-size: 12px;
  color: var(--text-sub);
}

.heat-bar {
  width: 120px;
  height: 6px;
  background: var(--border-line);
  border-radius: 3px;
  position: relative;
  flex-shrink: 0;
}

.heat-bar-fill {
  position: absolute;
  left: 0;
  top: 0;
  height: 100%;
  border-radius: 3px;
  background: var(--accent-teal);
}

.heat-high .heat-bar-fill {
  width: 90%;
  background: var(--accent-teal);
}

.heat-mid-high .heat-bar-fill {
  width: 75%;
  background: var(--accent-blue);
}

.heat-mid .heat-bar-fill {
  width: 60%;
  background: var(--status-green);
}

.heat-mid-low .heat-bar-fill {
  width: 45%;
  background: var(--text-sub);
  opacity: 0.6;
}

/* 分榜 */
.sub-rank-list {
  display: flex;
  flex-direction: column;
}

.sub-rank-list li {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 0;
  border-bottom: 1px solid var(--border-line);
  font-size: 14px;
}

.sub-rank-list .rank-no {
  font-size: 15px;
  min-width: 28px;
}

/* ------------------------------------------------------------
   内页 · 阅读指引
   ------------------------------------------------------------ */

.steps-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
  margin-bottom: 24px;
}

.steps-grid .step-card {
  padding: 24px;
}

.step-head {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 12px;
}

.step-head .step-num {
  margin-bottom: 0;
}

.steps-grid .step-card p {
  font-size: 14px;
  color: var(--text-sub);
  margin-bottom: 6px;
}

.media-figure {
  border: 1px solid var(--border-line);
  border-radius: var(--radius-lg);
  overflow: hidden;
  margin: 20px 0;
}

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

.media-figure figcaption {
  padding: 10px 14px;
  font-size: 13px;
  color: var(--text-sub);
  background: var(--bg-card);
}

/* 组合技巧 */
.combo-list {
  display: flex;
  flex-direction: column;
  gap: 20px;
  margin-bottom: 24px;
}

.combo-item {
  background: var(--bg-card);
  border: 1px solid var(--border-line);
  border-radius: var(--radius-lg);
  padding: 20px;
}

.combo-item h3 {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 6px;
}

.combo-item p {
  font-size: 14px;
  color: var(--text-sub);
  margin-bottom: 10px;
}

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

.faq-item {
  background: var(--bg-card);
  border: 1px solid var(--border-line);
  border-radius: var(--radius-md);
  overflow: hidden;
}

.faq-item summary {
  padding: 16px 20px;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  list-style: none;
  position: relative;
  padding-right: 44px;
  transition: color 0.2s;
}

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

.faq-item summary::after {
  content: "+";
  position: absolute;
  right: 18px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 20px;
  font-weight: 400;
  color: var(--accent-teal);
  transition: transform 0.2s;
}

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

.faq-item summary:hover {
  color: var(--accent-teal);
}

.faq-item p {
  padding: 0 20px 16px;
  font-size: 14px;
  color: var(--text-sub);
}

/* ------------------------------------------------------------
   内页 · 引用说明
   ------------------------------------------------------------ */

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

.rule-list li {
  font-size: 14px;
  color: var(--text-sub);
  padding: 12px 16px;
  background: var(--bg-card);
  border: 1px solid var(--border-line);
  border-radius: var(--radius-md);
}

.rule-list strong {
  color: var(--text-main);
  font-weight: 600;
  margin-right: 4px;
}

.cite-figure {
  border: 1px solid var(--border-line);
  border-radius: var(--radius-lg);
  overflow: hidden;
  margin: 20px 0;
  max-width: 480px;
}

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

.cite-figure figcaption {
  padding: 10px 14px;
  font-size: 13px;
  color: var(--text-sub);
  background: var(--bg-card);
}

.code-block {
  margin: 12px 0;
}

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

.forbid-list li {
  font-size: 14px;
  color: var(--text-sub);
  padding: 12px 16px;
  background: var(--bg-card);
  border: 1px solid var(--border-line);
  border-left: 3px solid #e74c3c;
  border-radius: var(--radius-md);
}

.forbid-list strong {
  color: var(--text-main);
  font-weight: 600;
  margin-right: 4px;
}

/* ------------------------------------------------------------
   404 页面
   ------------------------------------------------------------ */

.error-main {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 80px 24px;
  flex: 1;
}

.error-panel {
  text-align: center;
  max-width: 480px;
  background: var(--bg-card);
  border: 1px solid var(--border-line);
  border-radius: var(--radius-lg);
  padding: 48px 40px;
}

.error-code {
  font-size: 64px;
  font-weight: 700;
  color: var(--accent-teal);
  font-family: var(--font-mono);
  line-height: 1;
  margin-bottom: 16px;
}

.error-panel h1 {
  font-size: 24px;
  margin-bottom: 12px;
}

.error-desc {
  font-size: 14px;
  color: var(--text-sub);
  margin-bottom: 24px;
}

.error-back {
  display: inline-block;
  padding: 10px 28px;
  font-size: 14px;
  font-weight: 600;
  color: #fff;
  background: var(--accent-teal);
  border-radius: var(--radius-md);
  transition: background 0.2s;
}

.error-back:hover {
  color: #fff;
  background: var(--accent-blue);
}

/* ------------------------------------------------------------
   页脚
   ------------------------------------------------------------ */

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

.footer-cols {
  display: grid;
  grid-template-columns: 1fr 1fr 1.2fr;
  gap: 40px;
  padding-top: 40px;
  padding-bottom: 32px;
}

.footer-col h3 {
  font-size: 15px;
  font-weight: 600;
  margin-bottom: 16px;
  color: var(--text-main);
}

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

.footer-links a {
  font-size: 14px;
  color: var(--text-sub);
  transition: color 0.2s;
}

.footer-links a:hover {
  color: var(--accent-teal);
}

.footer-bottom {
  border-top: 1px solid var(--border-line);
  padding-top: 20px;
  padding-bottom: 20px;
}

.footer-bottom p {
  font-size: 13px;
  color: var(--text-sub);
  text-align: center;
}

/* ------------------------------------------------------------
   响应式 · 平板与手机
   ------------------------------------------------------------ */

@media (max-width: 1024px) {
  .catalog-grid {
    grid-template-columns: repeat(2, 1fr);
  }

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

  .guide-steps {
    grid-template-columns: repeat(2, 1fr);
  }

  .popular-side {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .hero {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .hero-figure {
    max-width: 560px;
  }

  .footer-cols {
    grid-template-columns: 1fr 1fr;
    gap: 32px;
  }

  .footer-col:last-child {
    grid-column: 1 / -1;
  }
}

@media (max-width: 768px) {
  :root {
    --space-section: 40px;
  }

  .header-inner {
    padding-left: 16px;
    padding-right: 16px;
  }

  /* 移动导航 */
  .nav-toggle {
    display: flex;
  }

  .site-nav {
    position: absolute;
    top: var(--header-h);
    left: 0;
    right: 0;
    background: var(--bg-card);
    border-bottom: 1px solid var(--border-line);
    box-shadow: 0 8px 16px rgba(27, 42, 58, 0.08);
    display: block;
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
  }

  .nav-list {
    flex-direction: column;
    padding: 8px 16px 16px;
    gap: 2px;
  }

  .nav-list a {
    padding: 12px 16px;
    font-size: 15px;
  }

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

  .site-nav:has(.nav-list.is-open) {
    max-height: 480px;
  }

  .header-cta {
    display: none;
  }

  /* 内页布局切换为单列，主内容在前 */
  .sidebar-left,
  .layout-shell:not(.sidebar-left),
  .page-layout:not(.sidebar-left) {
    display: flex;
    flex-direction: column;
    gap: 24px;
    padding-top: 24px;
    padding-bottom: 32px;
    padding-left: 16px;
    padding-right: 16px;
  }

  .page-sidebar,
  .sidebar {
    position: static;
    order: 2;
    width: 100%;
  }

  .inner-main {
    order: 1;
  }

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

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

  /* 首页 */
  .hero {
    padding-top: 32px;
    padding-bottom: 32px;
    padding-left: 16px;
    padding-right: 16px;
  }

  .hero-copy h1 {
    font-size: 26px;
  }

  .catalog-grid,
  .work-grid,
  .guide-steps,
  .steps-grid,
  .new-works-grid,
  .tag-card-group,
  .tag-image-pair {
    grid-template-columns: 1fr;
  }

  .popular-side {
    padding-left: 16px;
    padding-right: 16px;
  }

  .data-catalog,
  .recent-updates,
  .topic-cloud,
  .guide-entry,
  .citation {
    padding-left: 16px;
    padding-right: 16px;
  }

  .rank-item {
    flex-wrap: nowrap;
  }

  .rank-bar {
    display: none;
  }

  .heat-bar {
    width: 80px;
  }

  .timeline-item {
    flex-direction: column;
    gap: 6px;
    padding: 14px 0;
  }

  .timeline-date {
    min-width: 0;
  }

  .timeline-action {
    min-width: 0;
  }

  .footer-cols {
    grid-template-columns: 1fr;
    gap: 24px;
    padding-top: 32px;
    padding-left: 16px;
    padding-right: 16px;
  }

  .footer-col:last-child {
    grid-column: auto;
  }

  .footer-bottom {
    padding-left: 16px;
    padding-right: 16px;
  }
}

@media (max-width: 480px) {
  .brand-tag {
    display: none;
  }

  .work-grid,
  .catalog-grid,
  .guide-steps,
  .steps-grid,
  .new-works-grid,
  .tag-card-group,
  .tag-image-pair {
    grid-template-columns: 1fr;
  }

  .work-card-mini {
    flex-direction: column;
  }

  .card-cover {
    width: 100%;
    height: auto;
    aspect-ratio: 16 / 9;
  }

  .rank-item img,
  .rank-cover {
    width: 44px;
    height: 60px;
  }

  .combo-block,
  .combo-item {
    padding: 16px;
  }

  .code-block,
  pre.code-block {
    font-size: 12px;
    padding: 12px;
  }

  .error-panel {
    padding: 32px 24px;
  }
}