/* ==============================================================
   黄昏失焦漫画完整版 - 全站样式表
   风格：档案馆风 · 历史感克制 · 内容站
   ============================================================== */

/* ============================================================
   1. Base —— 变量、重置、基础排版
   ============================================================ */
:root {
  --color-bg: #f5f0e8;
  --color-bg-deep: #ede5d8;
  --color-surface: #fbf8f2;
  --color-text: #3e3a39;
  --color-text-light: #6b6560;
  --color-text-lighter: #8d8580;
  --color-accent: #b08968;
  --color-accent-dark: #946b4b;
  --color-dark: #2c2c2c;
  --color-line: #ddd3c5;
  --color-line-light: #e8e0d4;
  --color-white: #ffffff;

  --font-serif: "Noto Serif SC", "Songti SC", "SimSun", "Times New Roman", serif;
  --font-sans: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;

  --container-width: 1200px;
  --container-pad: 24px;
  --sidebar-width: 260px;
  --content-max: 840px;

  --radius-sm: 4px;
  --radius-md: 8px;

  --header-height: 68px;

  --shadow-sm: 0 1px 3px rgba(60, 50, 40, 0.08);
  --shadow-md: 0 4px 12px rgba(60, 50, 40, 0.08);

  --transition-fast: 0.2s ease;
  --transition-base: 0.3s ease;
}

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

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

body {
  font-family: var(--font-serif);
  font-size: 16px;
  line-height: 1.75;
  color: var(--color-text);
  background-color: var(--color-bg);
  -webkit-font-smoothing: antialiased;
}

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

a {
  color: var(--color-accent-dark);
  text-decoration: none;
  transition: color var(--transition-fast);
}

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

ul,
ol {
  list-style: none;
}

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

h1 {
  font-size: 2rem;
  letter-spacing: 0.02em;
}

h2 {
  font-size: 1.5rem;
  margin-bottom: 0.5em;
}

h3 {
  font-size: 1.125rem;
  margin-bottom: 0.4em;
}

p {
  margin-bottom: 1em;
}

figure {
  margin: 0;
}

/* ============================================================
   2. Layout —— 全站骨架：页头 / 页脚 / 主容器 / 侧栏
   ============================================================ */

/* ---------- 全站骨架锁定 ---------- */
.site-body {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  background-color: var(--color-bg);
  color: var(--color-text);
}

.site-header {
  background-color: var(--color-surface);
  border-bottom: 1px solid var(--color-line-light);
  position: sticky;
  top: 0;
  z-index: 100;
}

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

.brand-link {
  display: inline-flex;
  align-items: center;
  flex-shrink: 0;
}

.brand-name {
  font-family: var(--font-sans);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-dark);
  letter-spacing: 0.04em;
  white-space: nowrap;
}

.brand-name::before {
  content: "黄昏";
  color: var(--color-accent);
  margin-right: 4px;
}

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

.site-nav .nav-list a {
  display: block;
  padding: 8px 16px;
  font-family: var(--font-sans);
  font-size: 0.9375rem;
  color: var(--color-text);
  border-radius: var(--radius-sm);
  transition: background-color var(--transition-fast), color var(--transition-fast);
}

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

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

.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 10px;
  flex-direction: column;
  gap: 5px;
  border-radius: var(--radius-sm);
}

.nav-toggle-bar {
  display: block;
  width: 24px;
  height: 2px;
  background-color: var(--color-dark);
  transition: transform var(--transition-fast), opacity var(--transition-fast);
}

.site-main {
  flex: 1;
  width: 100%;
}

/* ---------- 页脚 ---------- */
.site-footer {
  background-color: var(--color-dark);
  color: #c9c2ba;
  margin-top: 64px;
}

.footer-inner {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 48px var(--container-pad) 24px;
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 40px;
}

.footer-brand .footer-slogan {
  font-family: var(--font-sans);
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--color-white);
  margin-bottom: 8px;
}

.footer-brand .footer-desc {
  font-size: 0.875rem;
  line-height: 1.7;
  color: #a29b93;
  max-width: 360px;
}

.footer-links h3,
.footer-updates h3 {
  font-size: 0.9375rem;
  color: var(--color-white);
  margin-bottom: 16px;
  letter-spacing: 0.06em;
}

.footer-links li,
.footer-updates li {
  margin-bottom: 10px;
}

.footer-links a,
.footer-updates a {
  font-family: var(--font-sans);
  font-size: 0.875rem;
  color: #a29b93;
  transition: color var(--transition-fast);
}

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

.footer-copy {
  grid-column: 1 / -1;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: 20px;
  margin-top: 8px;
  font-size: 0.8125rem;
  color: #8a837b;
}

/* ---------- 内页统一骨架 ---------- */
.inner-main {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 32px var(--container-pad) 0;
  width: 100%;
}

.breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-sans);
  font-size: 0.8125rem;
  color: var(--color-text-lighter);
  margin-bottom: 24px;
}

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

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

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

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

.page-header {
  margin-bottom: 40px;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--color-line-light);
}

.page-title {
  font-size: 1.875rem;
  font-weight: 700;
  margin-bottom: 12px;
}

.page-description {
  font-size: 1rem;
  color: var(--color-text-light);
  max-width: 720px;
  line-height: 1.8;
}

/* ---------- 侧栏布局 ---------- */
.page-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) var(--sidebar-width);
  gap: 40px;
  align-items: start;
}

.layout-shell {
  display: grid;
  grid-template-columns: var(--sidebar-width) minmax(0, 1fr);
  gap: 40px;
  align-items: start;
}

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

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

/* 正文宽度不小于侧栏 */
.page-layout > *:not(aside),
.layout-shell > *:not(aside) {
  min-width: 0;
}

/* ---------- 侧栏组件 ---------- */
.page-sidebar,
.guide-aside,
.sidebar {
  position: sticky;
  top: calc(var(--header-height) + 24px);
}

.sidebar-card,
.sidebar-inner,
.guide-aside {
  background-color: var(--color-surface);
  border: 1px solid var(--color-line-light);
  border-radius: var(--radius-md);
  padding: 24px;
  margin-bottom: 24px;
}

.sidebar-card h2,
.sidebar-inner h2,
.guide-aside h2 {
  font-size: 1rem;
  font-weight: 600;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--color-line-light);
  margin-bottom: 16px;
}

.sidebar-list li,
.sidebar-nav li,
.sidebar-links li,
.aside-nav li {
  margin-bottom: 4px;
}

.sidebar-list a,
.sidebar-nav a,
.sidebar-links a,
.aside-nav a {
  display: block;
  padding: 8px 12px;
  font-family: var(--font-sans);
  font-size: 0.875rem;
  color: var(--color-text);
  border-radius: var(--radius-sm);
  transition: background-color var(--transition-fast), color var(--transition-fast);
}

.sidebar-list a:hover,
.sidebar-nav a:hover,
.sidebar-links a:hover,
.aside-nav a:hover {
  background-color: var(--color-bg);
  color: var(--color-accent-dark);
}

.aside-note {
  margin-top: 16px;
  padding-top: 16px;
  border-top: 1px solid var(--color-line-light);
  font-size: 0.8125rem;
  color: var(--color-text-lighter);
  line-height: 1.7;
}

.aside-note a {
  display: inline;
  padding: 0;
  font-size: inherit;
  color: var(--color-accent-dark);
}

/* ============================================================
   3. Components —— 通用组件
   ============================================================ */

/* ---------- 图片容器 ---------- */
.content-media {
  border-radius: var(--radius-md);
  overflow: hidden;
  background-color: var(--color-bg-deep);
}

.content-media img {
  width: 100%;
  object-fit: cover;
}

.content-media figcaption {
  padding: 12px 16px;
  font-family: var(--font-sans);
  font-size: 0.8125rem;
  color: var(--color-text-lighter);
  background-color: var(--color-surface);
  border-top: 1px solid var(--color-line-light);
}

.hero-figure {
  border-radius: var(--radius-md);
  overflow: hidden;
  background-color: var(--color-bg-deep);
}

.hero-figure img {
  width: 100%;
  height: 320px;
  object-fit: cover;
}

.content-figure {
  border-radius: var(--radius-md);
  overflow: hidden;
  background-color: var(--color-bg-deep);
  margin-bottom: 24px;
}

.content-figure img {
  width: 100%;
  height: 280px;
  object-fit: cover;
}

.content-figure figcaption {
  padding: 12px 16px;
  font-family: var(--font-sans);
  font-size: 0.8125rem;
  color: var(--color-text-lighter);
  background-color: var(--color-surface);
  border-top: 1px solid var(--color-line-light);
}

.guide-figure {
  border-radius: var(--radius-md);
  overflow: hidden;
  background-color: var(--color-bg-deep);
  margin-bottom: 24px;
}

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

.guide-figure figcaption {
  padding: 12px 16px;
  font-family: var(--font-sans);
  font-size: 0.8125rem;
  color: var(--color-text-lighter);
  background-color: var(--color-surface);
  border-top: 1px solid var(--color-line-light);
}

.category-media {
  border-radius: var(--radius-md);
  overflow: hidden;
  background-color: var(--color-bg-deep);
  flex-shrink: 0;
}

.category-media img {
  width: 200px;
  height: 140px;
  object-fit: cover;
}

.rank-cover {
  border-radius: var(--radius-sm);
  overflow: hidden;
  background-color: var(--color-bg-deep);
  flex-shrink: 0;
}

.rank-cover img {
  width: 72px;
  height: 96px;
  object-fit: cover;
}

/* ---------- 按钮 ---------- */
.btn-guide {
  display: inline-block;
  padding: 12px 28px;
  background-color: var(--color-accent);
  color: var(--color-white);
  font-family: var(--font-sans);
  font-size: 0.9375rem;
  font-weight: 600;
  border-radius: var(--radius-sm);
  transition: background-color var(--transition-fast);
}

.btn-guide:hover {
  background-color: var(--color-accent-dark);
  color: var(--color-white);
}

/* ---------- 更多链接 ---------- */
.more-link {
  margin-top: 24px;
  text-align: right;
}

.more-link a {
  font-family: var(--font-sans);
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-accent-dark);
  border-bottom: 1px solid transparent;
  transition: border-color var(--transition-fast);
}

.more-link a:hover {
  border-color: var(--color-accent-dark);
}

/* ============================================================
   4. Pages —— 各页面特有样式
   ============================================================ */

/* ---------- 首页 ---------- */
.home-main {
  width: 100%;
}

/* 首屏：作品档案表格 */
.hero.archive-table {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 48px var(--container-pad) 32px;
}

.hero.archive-table h1 {
  font-size: 2.125rem;
  margin-bottom: 16px;
}

.hero-intro {
  font-size: 1.0625rem;
  color: var(--color-text-light);
  max-width: 760px;
  margin-bottom: 24px;
}

.hero-figure {
  margin-bottom: 32px;
}

.archive-table-wrap {
  background-color: var(--color-surface);
  border: 1px solid var(--color-line-light);
  border-radius: var(--radius-md);
  overflow: hidden;
}

.archive-table {
  width: 100%;
  border-collapse: collapse;
  font-family: var(--font-sans);
  font-size: 0.9375rem;
}

.archive-table thead th {
  background-color: var(--color-bg-deep);
  color: var(--color-dark);
  font-weight: 600;
  text-align: left;
  padding: 14px 20px;
  border-bottom: 1px solid var(--color-line);
  white-space: nowrap;
}

.archive-table tbody td {
  padding: 14px 20px;
  border-bottom: 1px solid var(--color-line-light);
  color: var(--color-text);
}

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

.archive-table tbody tr:hover {
  background-color: var(--color-bg);
}

/* 首页通用区块 */
.home-section {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 48px var(--container-pad);
}

.home-section h2 {
  font-size: 1.625rem;
  margin-bottom: 8px;
}

.section-desc {
  color: var(--color-text-light);
  max-width: 680px;
  margin-bottom: 28px;
}

/* 题材分类标签 */
.category-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.category-tags li a {
  display: inline-block;
  padding: 10px 24px;
  background-color: var(--color-surface);
  border: 1px solid var(--color-line);
  border-radius: 999px;
  font-family: var(--font-sans);
  font-size: 0.9375rem;
  color: var(--color-text);
  transition: background-color var(--transition-fast), border-color var(--transition-fast), color var(--transition-fast);
}

.category-tags li a:hover {
  background-color: var(--color-accent);
  border-color: var(--color-accent);
  color: var(--color-white);
}

/* 最近更新 */
.updates-group {
  margin-bottom: 32px;
}

.updates-group h3 {
  font-size: 1rem;
  font-weight: 600;
  color: var(--color-accent-dark);
  padding-bottom: 10px;
  border-bottom: 1px solid var(--color-line-light);
  margin-bottom: 16px;
  font-family: var(--font-sans);
}

.update-list li {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 12px 0;
  border-bottom: 1px solid var(--color-line-light);
}

.update-list li:last-child {
  border-bottom: none;
}

.update-list a {
  font-family: var(--font-sans);
  font-size: 0.9375rem;
  color: var(--color-text);
  transition: color var(--transition-fast);
}

.update-list a:hover {
  color: var(--color-accent-dark);
}

.update-status {
  font-family: var(--font-sans);
  font-size: 0.8125rem;
  color: var(--color-text-lighter);
  background-color: var(--color-bg-deep);
  padding: 4px 12px;
  border-radius: 999px;
  flex-shrink: 0;
}

/* 人气榜单预览 */
.popular-list {
  counter-reset: popular;
}

.popular-list li {
  counter-increment: popular;
  margin-bottom: 16px;
}

.popular-item {
  display: grid;
  grid-template-columns: 48px 1fr;
  gap: 16px;
  background-color: var(--color-surface);
  border: 1px solid var(--color-line-light);
  border-radius: var(--radius-md);
  padding: 20px 24px;
  transition: box-shadow var(--transition-base), border-color var(--transition-base);
}

.popular-item::before {
  content: counter(popular, decimal-leading-zero);
  font-family: var(--font-sans);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-line);
  line-height: 1.2;
}

.popular-item:hover {
  box-shadow: var(--shadow-md);
  border-color: var(--color-line);
}

.popular-item h3 {
  font-size: 1.0625rem;
  margin-bottom: 4px;
}

.popular-item h3 a {
  color: var(--color-dark);
}

.popular-item h3 a:hover {
  color: var(--color-accent-dark);
}

.popular-item p {
  font-size: 0.875rem;
  color: var(--color-text-light);
  margin-bottom: 0;
  line-height: 1.6;
}

/* 阅读指南入口 */
.guide-cards {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.guide-card {
  background-color: var(--color-surface);
  border: 1px solid var(--color-line-light);
  border-radius: var(--radius-md);
  padding: 32px;
  transition: box-shadow var(--transition-base), border-color var(--transition-base);
}

.guide-card:hover {
  box-shadow: var(--shadow-md);
  border-color: var(--color-line);
}

.guide-card h3 {
  font-size: 1.25rem;
  margin-bottom: 12px;
}

.guide-card p {
  font-size: 0.9375rem;
  color: var(--color-text-light);
  line-height: 1.7;
}

.guide-card p:last-child {
  margin-bottom: 0;
}

/* ---------- 题材分类页 ---------- */
.category-list h2 {
  font-size: 1.5rem;
  margin-bottom: 8px;
}

.section-intro {
  color: var(--color-text-light);
  margin-bottom: 32px;
}

.category-card {
  display: flex;
  gap: 24px;
  background-color: var(--color-surface);
  border: 1px solid var(--color-line-light);
  border-radius: var(--radius-md);
  padding: 24px;
  margin-bottom: 24px;
  transition: box-shadow var(--transition-base), border-color var(--transition-base);
}

.category-card:hover {
  box-shadow: var(--shadow-md);
  border-color: var(--color-line);
}

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

.category-body h3 {
  font-size: 1.25rem;
  margin-bottom: 8px;
}

.category-body p {
  font-size: 0.9375rem;
  color: var(--color-text-light);
  line-height: 1.7;
}

.category-note {
  font-family: var(--font-sans);
  font-size: 0.8125rem;
  color: var(--color-text-lighter);
  border-left: 3px solid var(--color-accent);
  padding-left: 12px;
  margin-top: 12px;
}

.category-help {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 var(--container-pad) 48px;
}

.category-help h2 {
  font-size: 1.375rem;
  margin-bottom: 16px;
}

.category-help p {
  color: var(--color-text-light);
  line-height: 1.8;
  max-width: 760px;
}

/* ---------- 阅读指南页 ---------- */
.guide-content {
  min-width: 0;
}

.guide-block {
  background-color: var(--color-surface);
  border: 1px solid var(--color-line-light);
  border-radius: var(--radius-md);
  padding: 32px;
  margin-bottom: 32px;
}

.guide-block h2 {
  font-size: 1.375rem;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--color-line-light);
  margin-bottom: 20px;
}

.guide-block > p {
  color: var(--color-text-light);
  line-height: 1.8;
}

.steps-list {
  counter-reset: step-counter;
}

.step-item {
  counter-increment: step-counter;
  position: relative;
  padding-left: 56px;
  padding-bottom: 32px;
}

.step-item::before {
  content: counter(step-counter, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 0;
  width: 40px;
  height: 40px;
  background-color: var(--color-bg-deep);
  border: 1px solid var(--color-line);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-sans);
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--color-accent-dark);
}

.step-item::after {
  content: "";
  position: absolute;
  left: 20px;
  top: 44px;
  bottom: 0;
  width: 1px;
  background-color: var(--color-line);
}

.step-item:last-child {
  padding-bottom: 0;
}

.step-item:last-child::after {
  display: none;
}

.step-item h3 {
  font-size: 1.125rem;
  margin-bottom: 8px;
}

.step-item p {
  font-size: 0.9375rem;
  color: var(--color-text-light);
  line-height: 1.7;
}

.tips-list li {
  padding: 16px 0;
  border-bottom: 1px solid var(--color-line-light);
}

.tips-list li:last-child {
  border-bottom: none;
}

.tips-list h3 {
  font-size: 1rem;
  margin-bottom: 6px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.tips-list h3::before {
  content: "◆";
  font-size: 0.75rem;
  color: var(--color-accent);
}

.tips-list p {
  font-size: 0.875rem;
  color: var(--color-text-light);
  line-height: 1.7;
  margin-bottom: 0;
}

/* ---------- 完整版阅读页 ---------- */
.content-main {
  min-width: 0;
}

.chapters {
  background-color: var(--color-surface);
  border: 1px solid var(--color-line-light);
  border-radius: var(--radius-md);
  padding: 32px;
  margin-bottom: 32px;
}

.chapters > h2 {
  font-size: 1.375rem;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--color-line-light);
  margin-bottom: 12px;
}

.chapters > p {
  color: var(--color-text-light);
  margin-bottom: 24px;
}

.volume-block {
  margin-bottom: 32px;
  padding-bottom: 32px;
  border-bottom: 1px solid var(--color-line-light);
}

.volume-block:last-child {
  margin-bottom: 0;
  padding-bottom: 0;
  border-bottom: none;
}

.volume-block h3 {
  font-size: 1.125rem;
  color: var(--color-accent-dark);
  margin-bottom: 8px;
}

.volume-desc {
  font-size: 0.875rem;
  color: var(--color-text-light);
  margin-bottom: 16px;
}

.chapter-list li {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 10px 0;
  border-bottom: 1px solid var(--color-line-light);
  font-family: var(--font-sans);
  font-size: 0.9375rem;
}

.chapter-list li:last-child {
  border-bottom: none;
}

.chapter-num {
  font-size: 0.8125rem;
  color: var(--color-text-lighter);
  flex-shrink: 0;
  min-width: 40px;
}

.summary {
  background-color: var(--color-surface);
  border: 1px solid var(--color-line-light);
  border-radius: var(--radius-md);
  padding: 32px;
  margin-bottom: 32px;
}

.summary h2 {
  font-size: 1.375rem;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--color-line-light);
  margin-bottom: 20px;
}

.summary p {
  color: var(--color-text-light);
  line-height: 1.8;
}

.reading-order {
  background-color: var(--color-surface);
  border: 1px solid var(--color-line-light);
  border-radius: var(--radius-md);
  padding: 32px;
}

.reading-order h2 {
  font-size: 1.375rem;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--color-line-light);
  margin-bottom: 16px;
}

.reading-order > p {
  color: var(--color-text-light);
  line-height: 1.8;
}

.order-list {
  counter-reset: order-counter;
  margin: 16px 0 24px;
}

.order-list li {
  counter-increment: order-counter;
  position: relative;
  padding: 10px 0 10px 48px;
  font-family: var(--font-sans);
  font-size: 0.9375rem;
  color: var(--color-text);
  border-bottom: 1px solid var(--color-line-light);
}

.order-list li:last-child {
  border-bottom: none;
}

.order-list li::before {
  content: counter(order-counter, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-accent);
}

.reading-order a {
  font-family: var(--font-sans);
  font-size: 0.875rem;
  margin-right: 16px;
  border-bottom: 1px solid transparent;
}

.reading-order a:hover {
  border-color: var(--color-accent-dark);
}

/* ---------- 人气榜单页 ---------- */
.ranking {
  margin-bottom: 48px;
}

.ranking > h2 {
  font-size: 1.5rem;
  margin-bottom: 24px;
}

.ranking-item {
  display: grid;
  grid-template-columns: 56px 72px 1fr;
  gap: 20px;
  align-items: center;
  background-color: var(--color-surface);
  border: 1px solid var(--color-line-light);
  border-radius: var(--radius-md);
  padding: 20px 24px;
  margin-bottom: 16px;
  transition: box-shadow var(--transition-base), border-color var(--transition-base);
}

.ranking-item:hover {
  box-shadow: var(--shadow-md);
  border-color: var(--color-line);
}

.rank-number {
  font-family: var(--font-sans);
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--color-line);
  text-align: center;
  line-height: 1;
}

.ranking-item:nth-child(-n+3) .rank-number {
  color: var(--color-accent);
}

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

.rank-info h3 {
  font-size: 1.125rem;
  margin-bottom: 4px;
}

.rank-tags {
  font-family: var(--font-sans);
  font-size: 0.8125rem;
  color: var(--color-accent-dark);
  margin-bottom: 6px;
}

.rank-desc {
  font-size: 0.875rem;
  color: var(--color-text-light);
  line-height: 1.6;
  margin-bottom: 8px;
}

.rank-info a {
  font-family: var(--font-sans);
  font-size: 0.8125rem;
  border-bottom: 1px solid transparent;
}

.rank-info a:hover {
  border-color: var(--color-accent-dark);
}

.work-brief {
  background-color: var(--color-surface);
  border: 1px solid var(--color-line-light);
  border-radius: var(--radius-md);
  padding: 32px;
  margin-bottom: 32px;
}

.work-brief h2 {
  font-size: 1.375rem;
  margin-bottom: 16px;
}

.work-brief p {
  color: var(--color-text-light);
  line-height: 1.8;
}

.work-brief a {
  font-family: var(--font-sans);
  font-size: 0.875rem;
  border-bottom: 1px solid transparent;
}

.work-brief a:hover {
  border-color: var(--color-accent-dark);
}

.guide-entry {
  background-color: var(--color-bg-deep);
  border: 1px solid var(--color-line-light);
  border-radius: var(--radius-md);
  padding: 32px;
  text-align: center;
}

.guide-entry h2 {
  font-size: 1.375rem;
  margin-bottom: 12px;
}

.guide-entry p {
  color: var(--color-text-light);
  max-width: 560px;
  margin: 0 auto 24px;
}

.guide-entry a {
  font-family: var(--font-sans);
  font-size: 0.875rem;
  border-bottom: 1px solid transparent;
  margin: 0 8px;
}

.guide-entry a:hover {
  border-color: var(--color-accent-dark);
}

.guide-entry .btn-guide {
  display: inline-block;
  margin-top: 8px;
  border-bottom: none;
}

/* ---------- 404 页 ---------- */
.error-main {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 80px 24px;
}

.error-section {
  text-align: center;
  max-width: 520px;
}

.error-code {
  font-family: var(--font-sans);
  font-size: 6rem;
  font-weight: 700;
  color: var(--color-line);
  line-height: 1;
  margin-bottom: 16px;
}

.error-section h1 {
  font-size: 1.5rem;
  margin-bottom: 16px;
}

.error-desc {
  color: var(--color-text-light);
  margin-bottom: 32px;
}

.error-back {
  display: inline-block;
  padding: 12px 32px;
  background-color: var(--color-accent);
  color: var(--color-white);
  font-family: var(--font-sans);
  font-size: 0.9375rem;
  font-weight: 600;
  border-radius: var(--radius-sm);
  transition: background-color var(--transition-fast);
}

.error-back:hover {
  background-color: var(--color-accent-dark);
  color: var(--color-white);
}

/* ============================================================
   5. Responsive —— 响应式断点
   ============================================================ */

/* ---------- 平板及以下 ---------- */
@media (max-width: 960px) {
  .page-layout,
  .layout-shell,
  .sidebar-left .page-layout,
  .sidebar-left .layout-shell {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .page-sidebar,
  .guide-aside,
  .sidebar {
    position: static;
    order: 2;
  }

  .sidebar-card,
  .sidebar-inner,
  .guide-aside {
    margin-bottom: 0;
  }

  .footer-inner {
    grid-template-columns: 1fr 1fr;
  }

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

/* ---------- 手机断点 768px ---------- */
@media (max-width: 768px) {
  :root {
    --container-pad: 16px;
  }

  html {
    font-size: 15px;
  }

  h1 {
    font-size: 1.625rem;
  }

  .header-inner {
    height: 60px;
    gap: 16px;
  }

  .brand-name {
    font-size: 1.0625rem;
  }

  .nav-toggle {
    display: flex;
  }

  .site-nav {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background-color: var(--color-surface);
    border-bottom: 1px solid var(--color-line-light);
    box-shadow: var(--shadow-md);
    display: none;
  }

  .site-nav .nav-list {
    flex-direction: column;
    align-items: stretch;
    padding: 12px var(--container-pad);
    gap: 0;
  }

  .site-nav .nav-list a {
    padding: 14px 12px;
    border-bottom: 1px solid var(--color-line-light);
    border-radius: 0;
  }

  .site-nav .nav-list li:last-child a {
    border-bottom: none;
  }

  .site-nav .nav-list a.is-current {
    background-color: var(--color-bg);
  }

  .site-nav.is-open {
    display: block;
  }

  .inner-main {
    padding-top: 24px;
  }

  .breadcrumb {
    margin-bottom: 16px;
    flex-wrap: wrap;
  }

  .page-header {
    margin-bottom: 28px;
    padding-bottom: 16px;
  }

  .page-title {
    font-size: 1.5rem;
  }

  /* 首页 */
  .hero.archive-table {
    padding: 32px var(--container-pad) 24px;
  }

  .hero.archive-table h1 {
    font-size: 1.625rem;
  }

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

  .archive-table thead {
    display: none;
  }

  .archive-table tbody tr {
    display: block;
    padding: 16px 0;
    border-bottom: 1px solid var(--color-line-light);
  }

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

  .archive-table tbody td {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    gap: 12px;
    padding: 4px 16px;
    border-bottom: none;
    font-size: 0.875rem;
  }

  .archive-table tbody td::before {
    content: attr(data-label);
    font-weight: 600;
    color: var(--color-text-lighter);
    font-size: 0.8125rem;
    flex-shrink: 0;
  }

  .home-section {
    padding: 32px var(--container-pad);
  }

  .home-section h2 {
    font-size: 1.375rem;
  }

  .category-tags {
    gap: 8px;
  }

  .category-tags li a {
    padding: 8px 16px;
    font-size: 0.875rem;
  }

  .update-list li {
    flex-direction: column;
    align-items: flex-start;
    gap: 4px;
  }

  .popular-item {
    grid-template-columns: 36px 1fr;
    padding: 16px;
    gap: 12px;
  }

  .popular-item::before {
    font-size: 1.25rem;
  }

  .guide-cards {
    grid-template-columns: 1fr;
  }

  /* 内页通用 */
  .category-card {
    flex-direction: column;
    gap: 16px;
    padding: 16px;
  }

  .category-media img {
    width: 100%;
    height: 180px;
  }

  .guide-block,
  .chapters,
  .summary,
  .reading-order,
  .work-brief,
  .guide-entry {
    padding: 24px 20px;
  }

  .step-item {
    padding-left: 48px;
  }

  .step-item::before {
    width: 36px;
    height: 36px;
    font-size: 0.8125rem;
  }

  .step-item::after {
    left: 18px;
    top: 40px;
  }

  .ranking-item {
    grid-template-columns: 40px 56px 1fr;
    gap: 12px;
    padding: 16px;
  }

  .rank-number {
    font-size: 1.375rem;
  }

  .rank-cover img {
    width: 56px;
    height: 76px;
  }

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

  .guide-figure img {
    height: 180px;
  }

  /* 页脚 */
  .footer-inner {
    grid-template-columns: 1fr;
    gap: 32px;
    padding: 40px var(--container-pad) 20px;
  }

  .footer-brand {
    grid-column: auto;
  }

  .error-code {
    font-size: 4.5rem;
  }
}

/* ---------- 小屏手机 390px ---------- */
@media (max-width: 420px) {
  .ranking-item {
    grid-template-columns: 32px 48px 1fr;
    gap: 10px;
    padding: 12px;
  }

  .rank-cover img {
    width: 48px;
    height: 64px;
  }

  .rank-number {
    font-size: 1.125rem;
  }

  .rank-info h3 {
    font-size: 1rem;
  }

  .rank-desc {
    font-size: 0.8125rem;
  }

  .category-tags li a {
    padding: 8px 14px;
    font-size: 0.8125rem;
  }

  .archive-table tbody td {
    padding: 4px 12px;
  }

  .archive-table tbody td::before {
    font-size: 0.75rem;
  }
}

/* ---------- 滚动出现动画（渐进增强，不影响初始可见性） ---------- */
@media (prefers-reduced-motion: no-preference) {
  .home-section,
  .category-card,
  .guide-card,
  .ranking-item {
    animation: fadeInUp 0.5s ease both;
  }

  .home-section:nth-child(2) {
    animation-delay: 0.1s;
  }

  .home-section:nth-child(3) {
    animation-delay: 0.15s;
  }

  .home-section:nth-child(4) {
    animation-delay: 0.2s;
  }

  .home-section:nth-child(5) {
    animation-delay: 0.25s;
  }
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(12px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}