/* ==========================================================================
   51漫画 - 全站样式表
   版本：1.0
   说明：本文件为 gzqrtly.com 全站共用样式，覆盖首页、内页、404 页。
   分组：base / layout / components / pages / responsive
   ========================================================================== */

/* ==========================================================================
   Base — 基础变量、重置、字体、色彩
   ========================================================================== */

:root {
  --color-primary: #FF5A36;
  --color-secondary: #1E2A38;
  --color-bg: #FAF7F2;
  --color-accent: #FFC93C;
  --color-text: #2B2B2B;
  --color-muted: #8A8A8A;
  --color-border: #E8E1D8;
  --color-card-bg: #FFFFFF;
  --color-footer-bg: #1E2A38;
  --color-footer-text: #C9D2DC;

  --font-sans: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  --font-mono: "SF Mono", "JetBrains Mono", "Consolas", "Courier New", monospace;

  --container-width: 1200px;
  --container-padding: 24px;

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

  --space-xs: 8px;
  --space-sm: 16px;
  --space-md: 24px;
  --space-lg: 40px;
  --space-xl: 64px;

  --header-height: 64px;
}

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

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

body {
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.7;
  color: var(--color-text);
  background-color: var(--color-bg);
}

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

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

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

ul,
ol {
  list-style: none;
}

h1,
h2,
h3,
h4,
h5,
h6 {
  line-height: 1.35;
  font-weight: 700;
  color: var(--color-secondary);
}

h1 {
  font-size: 32px;
}

h2 {
  font-size: 24px;
}

h3 {
  font-size: 18px;
}

p {
  margin-bottom: 16px;
}

details summary {
  cursor: pointer;
}

details summary::-webkit-details-marker {
  display: none;
}

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

/* ==========================================================================
   Layout — 全站骨架布局
   ========================================================================== */

.site-body {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

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

.site-home {
  width: 100%;
}

.site-inner {
  width: 100%;
}

/* 统一内容容器 */
.header-inner,
.footer-inner,
.home-main,
.inner-main {
  width: 100%;
  max-width: var(--container-width);
  margin: 0 auto;
  padding-left: var(--container-padding);
  padding-right: var(--container-padding);
}

/* ==========================================================================
   Components — Header / 导航
   ========================================================================== */

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

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

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

.brand-name {
  font-size: 22px;
  font-weight: 800;
  color: var(--color-primary);
  letter-spacing: 0.5px;
}

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

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

.nav-list li {
  position: relative;
}

.nav-list a {
  display: inline-block;
  padding: 8px 14px;
  font-size: 15px;
  line-height: 1.4;
  color: var(--color-secondary);
  border-radius: var(--radius-sm);
  transition: background-color 0.2s ease, color 0.2s ease;
}

.nav-list a:hover {
  background-color: rgba(255, 90, 54, 0.08);
  color: var(--color-primary);
}

.nav-list a.is-current {
  color: var(--color-primary);
  font-weight: 600;
  background-color: rgba(255, 90, 54, 0.1);
}

/* 汉堡按钮（移动端显示） */
.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  width: 44px;
  height: 44px;
  background: transparent;
  border: none;
  cursor: pointer;
  gap: 5px;
  padding: 0;
}

.nav-toggle-bar {
  display: block;
  width: 22px;
  height: 2px;
  background-color: var(--color-secondary);
  border-radius: 2px;
  transition: transform 0.2s ease, opacity 0.2s ease;
}

/* ==========================================================================
   Components — Footer
   ========================================================================== */

.site-footer {
  background-color: var(--color-footer-bg);
  color: var(--color-footer-text);
  margin-top: var(--space-xl);
}

.footer-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-sm) var(--space-md);
  padding-top: var(--space-md);
  padding-bottom: var(--space-md);
}

.footer-brand {
  font-size: 15px;
  font-weight: 700;
  color: #FFFFFF;
  margin-bottom: 0;
}

.footer-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 4px 20px;
}

.footer-nav a {
  font-size: 14px;
  color: var(--color-footer-text);
  padding: 4px 0;
}

.footer-nav a:hover {
  color: #FFFFFF;
}

.footer-note {
  font-size: 13px;
  color: #8FA0B0;
  margin-bottom: 0;
}

.footer-copy {
  font-size: 13px;
  color: #6F7C8A;
  margin-bottom: 0;
  width: 100%;
  text-align: center;
}

/* ==========================================================================
   Components — 面包屑
   ========================================================================== */

.breadcrumb {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 6px;
  padding-top: var(--space-md);
  font-size: 14px;
  color: var(--color-muted);
}

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

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

.breadcrumb-sep {
  color: #C0B8AE;
  font-size: 12px;
}

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

/* ==========================================================================
   Components — 页面标题区
   ========================================================================== */

.page-header {
  padding-top: var(--space-md);
  padding-bottom: var(--space-md);
  border-bottom: 1px solid var(--color-border);
  margin-bottom: var(--space-lg);
}

.page-title {
  font-size: 32px;
  color: var(--color-secondary);
  margin-bottom: 8px;
}

.page-description {
  font-size: 16px;
  color: var(--color-muted);
  max-width: 720px;
  margin-bottom: 0;
}

/* ==========================================================================
   Components — 封面卡片
   ========================================================================== */

.cover-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-md);
}

.cover-card {
  background-color: var(--color-card-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.cover-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 24px rgba(30, 42, 56, 0.08);
}

.cover-figure {
  aspect-ratio: 4 / 3;
  overflow: hidden;
  background-color: #F0EBE4;
}

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

.cover-body {
  padding: 14px 16px 16px;
  display: flex;
  flex-direction: column;
  gap: 6px;
  flex: 1;
}

.cover-tag {
  display: inline-block;
  font-size: 12px;
  font-weight: 600;
  color: var(--color-primary);
  background-color: rgba(255, 90, 54, 0.08);
  padding: 2px 8px;
  border-radius: var(--radius-sm);
  align-self: flex-start;
}

.cover-title {
  font-size: 16px;
  margin-bottom: 0;
}

.cover-status {
  font-size: 13px;
  color: var(--color-muted);
  margin-bottom: 0;
  margin-top: auto;
}

/* ==========================================================================
   Components — 章节动态列表
   ========================================================================== */

.chapter-list {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.chapter-item {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  padding: 14px 0;
  border-bottom: 1px solid var(--color-border);
}

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

.chapter-dir {
  font-weight: 600;
  color: var(--color-secondary);
  min-width: 120px;
}

.chapter-desc {
  flex: 1;
  color: var(--color-text);
  font-size: 15px;
}

.chapter-tag {
  font-size: 12px;
  color: var(--color-primary);
  background-color: rgba(255, 90, 54, 0.08);
  padding: 2px 8px;
  border-radius: var(--radius-sm);
  white-space: nowrap;
}

.chapter-time {
  font-size: 13px;
  color: var(--color-muted);
  white-space: nowrap;
  min-width: 64px;
  text-align: right;
}

/* ==========================================================================
   Components — 榜单
   ========================================================================== */

.rank-list {
  display: flex;
  flex-direction: column;
  gap: 0;
  counter-reset: rank-counter;
}

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

.rank-item:last-child {
  border-bottom: none;
}

.rank-no {
  font-family: var(--font-mono);
  font-size: 20px;
  font-weight: 700;
  color: var(--color-primary);
  min-width: 36px;
  text-align: center;
}

.rank-badge {
  font-family: var(--font-mono);
  font-size: 18px;
  font-weight: 700;
  color: var(--color-primary);
  min-width: 32px;
  text-align: center;
}

.rank-body {
  flex: 1;
}

.rank-name {
  font-size: 16px;
  margin-bottom: 4px;
}

.rank-reason {
  font-size: 14px;
  color: var(--color-muted);
  margin-bottom: 0;
}

.rank-info {
  flex: 1;
}

.rank-tag {
  display: inline-block;
  font-size: 12px;
  color: var(--color-primary);
  background-color: rgba(255, 90, 54, 0.08);
  padding: 2px 8px;
  border-radius: var(--radius-sm);
  margin-bottom: 4px;
}

.rank-cover {
  width: 80px;
  height: 60px;
  border-radius: var(--radius-sm);
  overflow: hidden;
  flex-shrink: 0;
  background-color: #F0EBE4;
}

.rank-cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* ==========================================================================
   Components — 标签墙
   ========================================================================== */

.genre-tagwall,
.genre-tag-wall {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.genre-group,
.genre-tag-group {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.genre-group-title,
.tag-group-title {
  font-size: 16px;
  color: var(--color-secondary);
  margin-bottom: 0;
}

.tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.tag-list a {
  display: inline-block;
  font-size: 13px;
  padding: 6px 14px;
  background-color: var(--color-card-bg);
  border: 1px solid var(--color-border);
  border-radius: 20px;
  color: var(--color-secondary);
  transition: border-color 0.2s ease, color 0.2s ease, background-color 0.2s ease;
}

.tag-list a:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
  background-color: rgba(255, 90, 54, 0.04);
}

/* ==========================================================================
   Components — 相关链接条
   ========================================================================== */

.related-links {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px 16px;
  padding: var(--space-md) 0;
  border-top: 1px solid var(--color-border);
  margin-top: var(--space-lg);
}

.related-links-label {
  font-size: 14px;
  color: var(--color-muted);
}

.related-links-item {
  font-size: 14px;
  color: var(--color-primary);
  padding: 4px 0;
}

.related-links-item:hover {
  text-decoration: underline;
}

/* ==========================================================================
   Components — 卡片网格（更新页用）
   ========================================================================== */

.card-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-md);
}

.card-figure {
  aspect-ratio: 4 / 3;
  overflow: hidden;
  background-color: #F0EBE4;
  position: relative;
  border-radius: var(--radius-md) var(--radius-md) 0 0;
}

.card-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.card-tag {
  position: absolute;
  left: 12px;
  bottom: 12px;
  font-size: 12px;
  font-weight: 600;
  color: #FFFFFF;
  background-color: rgba(30, 42, 56, 0.8);
  padding: 2px 10px;
  border-radius: var(--radius-sm);
  font-style: normal;
}

.card-body {
  padding: 16px;
  background-color: var(--color-card-bg);
  border: 1px solid var(--color-border);
  border-top: none;
  border-radius: 0 0 var(--radius-md) var(--radius-md);
}

.card-title {
  font-size: 16px;
  margin-bottom: 6px;
}

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

.update-status {
  display: inline-block;
  font-size: 12px;
  color: var(--color-primary);
  font-weight: 600;
}

/* ==========================================================================
   Components — FAQ
   ========================================================================== */

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

.faq-item {
  background-color: var(--color-card-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 0 20px;
  transition: border-color 0.2s ease;
}

.faq-item[open] {
  border-color: rgba(255, 90, 54, 0.4);
}

.faq-item summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 16px 0;
  font-size: 16px;
  font-weight: 600;
  color: var(--color-secondary);
  list-style: none;
}

.faq-item summary::after {
  content: "+";
  font-size: 20px;
  font-weight: 400;
  color: var(--color-muted);
  flex-shrink: 0;
  transition: transform 0.2s ease;
}

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

.faq-item p {
  padding-bottom: 16px;
  font-size: 15px;
  color: var(--color-text);
}

.faq-item a {
  color: var(--color-primary);
  text-decoration: underline;
}

/* ==========================================================================
   Components — 图文块（about / genre 共用）
   ========================================================================== */

.about-vision-block {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-lg);
  align-items: start;
}

.about-figure {
  border-radius: var(--radius-md);
  overflow: hidden;
  background-color: #F0EBE4;
}

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

.about-figure figcaption {
  font-size: 13px;
  color: var(--color-muted);
  padding: 8px 12px;
  background-color: var(--color-card-bg);
}

.about-copy p {
  font-size: 15px;
  line-height: 1.8;
}

/* ==========================================================================
   Pages — 首页
   ========================================================================== */

.home-main {
  display: flex;
  flex-direction: column;
  gap: var(--space-xl);
  padding-top: var(--space-lg);
  padding-bottom: var(--space-xl);
}

/* ---- 编辑部头条区 ---- */

.hero-editorial {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: var(--space-md);
  align-items: stretch;
}

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

.hero-figure {
  aspect-ratio: 16 / 9;
  overflow: hidden;
  background-color: #F0EBE4;
}

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

.hero-caption {
  padding: 24px;
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}

.hero-eyebrow {
  font-size: 13px;
  font-weight: 700;
  color: var(--color-primary);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 8px;
}

.hero-title {
  font-size: 28px;
  margin-bottom: 10px;
}

.hero-desc {
  font-size: 15px;
  color: var(--color-muted);
  margin-bottom: 16px;
}

.hero-cta {
  display: inline-block;
  background-color: var(--color-primary);
  color: #FFFFFF;
  padding: 10px 20px;
  border-radius: var(--radius-sm);
  font-size: 15px;
  font-weight: 600;
  margin-top: auto;
  transition: background-color 0.2s ease;
}

.hero-cta:hover {
  background-color: #E84A28;
  color: #FFFFFF;
}

.hero-secondary {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.hero-mini {
  flex: 1;
  background-color: var(--color-card-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 20px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.hero-mini:hover {
  border-color: var(--color-primary);
  box-shadow: 0 4px 16px rgba(255, 90, 54, 0.08);
}

.mini-label {
  font-size: 12px;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 6px;
}

.mini-text {
  font-size: 16px;
  font-weight: 600;
  color: var(--color-secondary);
}

/* ---- 通用 section 头 ---- */

.section-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: var(--space-sm);
  margin-bottom: var(--space-md);
}

.section-title {
  font-size: 24px;
  color: var(--color-secondary);
  margin-bottom: 4px;
}

.section-desc {
  font-size: 14px;
  color: var(--color-muted);
  margin-bottom: 0;
}

.section-more {
  font-size: 14px;
  color: var(--color-primary);
  font-weight: 600;
  white-space: nowrap;
  padding: 6px 0;
}

.section-more:hover {
  text-decoration: underline;
}

/* ---- 题材分类索引（首页） ---- */

.genre-tagwall {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-md);
}

/* ---- 追更三步指引（首页） ---- */

.guide-steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-md);
}

.guide-step {
  background-color: var(--color-card-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 24px;
  position: relative;
}

.step-no {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background-color: var(--color-primary);
  color: #FFFFFF;
  font-family: var(--font-mono);
  font-size: 15px;
  font-weight: 700;
  margin-bottom: 12px;
}

.step-title {
  font-size: 17px;
  margin-bottom: 8px;
}

.step-desc {
  font-size: 14px;
  color: var(--color-muted);
  margin-bottom: 0;
}

.step-desc a {
  display: inline-block;
  margin-top: 8px;
  color: var(--color-primary);
  font-weight: 600;
  font-size: 14px;
}

.step-desc a:hover {
  text-decoration: underline;
}

/* ==========================================================================
   Pages — 内页通用
   ========================================================================== */

.inner-main {
  display: flex;
  flex-direction: column;
  gap: var(--space-lg);
  padding-top: 0;
  padding-bottom: var(--space-xl);
}

/* ==========================================================================
   Pages — 题材分类页
   ========================================================================== */

.genre-overview h2,
.genre-directions h2 {
  font-size: 24px;
  margin-bottom: 8px;
}

.section-intro {
  font-size: 15px;
  color: var(--color-muted);
  margin-bottom: var(--space-md);
  max-width: 720px;
}

.genre-directions {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.genre-card {
  display: grid;
  grid-template-columns: 3fr 2fr;
  gap: var(--space-md);
  background-color: var(--color-card-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
}

.genre-card-text {
  padding: 24px;
}

.genre-card-text h3 {
  font-size: 18px;
  margin-bottom: 8px;
}

.genre-card-text p {
  font-size: 15px;
  color: var(--color-text);
  margin-bottom: 8px;
}

.genre-card-media {
  min-height: 200px;
  background-color: #F0EBE4;
  display: flex;
  flex-direction: column;
}

.genre-card-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  flex: 1;
}

.genre-card-media figcaption {
  font-size: 13px;
  color: var(--color-muted);
  padding: 8px 12px;
  background-color: var(--color-card-bg);
}

/* 相关入口（题材页） */

.related-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-md);
}

.related-card {
  background-color: var(--color-card-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 20px;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.related-card:hover {
  border-color: var(--color-primary);
  box-shadow: 0 4px 16px rgba(255, 90, 54, 0.08);
}

.related-card h3 {
  font-size: 16px;
  margin-bottom: 6px;
}

.related-card p {
  font-size: 14px;
  color: var(--color-muted);
  margin-bottom: 0;
}

/* ==========================================================================
   Pages — 最近更新页
   ========================================================================== */

.update-section {
  margin-bottom: var(--space-lg);
}

.update-section .section-title {
  margin-bottom: 8px;
}

/* 章节跟进动态列表（更新页） */

/* ==========================================================================
   Pages — 排行榜页
   ========================================================================== */

.rank-section {
  margin-bottom: var(--space-lg);
}

.overall-list .rank-item {
  gap: var(--space-md);
}

.genre-rank-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-md);
}

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

.genre-rank-head {
  font-size: 16px;
  color: var(--color-primary);
  margin-bottom: 8px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--color-border);
}

.genre-list .rank-item {
  padding: 12px 0;
  gap: 12px;
}

.genre-list .rank-badge {
  font-size: 16px;
  min-width: 28px;
}

.note-content p {
  font-size: 15px;
  color: var(--color-muted);
  max-width: 760px;
}

/* ==========================================================================
   Pages — 阅读指南页
   ========================================================================== */

.guide-steps {
  margin-bottom: var(--space-lg);
}

.steps-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.step-item {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: var(--space-md);
  background-color: var(--color-card-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
}

.step-media {
  background-color: #F0EBE4;
  min-height: 160px;
}

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

.step-content {
  padding: 24px;
}

.step-content h3 {
  font-size: 18px;
  margin-bottom: 8px;
}

.step-content p {
  font-size: 15px;
  color: var(--color-text);
}

.step-content a {
  color: var(--color-primary);
  font-weight: 600;
}

.step-content a:hover {
  text-decoration: underline;
}

/* 栏目使用说明 */

.column-guide-list {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-md);
}

.column-guide-item {
  background-color: var(--color-card-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 20px;
}

.column-guide-item h3 {
  font-size: 16px;
  margin-bottom: 8px;
  color: var(--color-primary);
}

.column-guide-item p {
  font-size: 14px;
  color: var(--color-muted);
  margin-bottom: 0;
}

/* 新读者下一步入口 */

.next-links {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-md);
}

.next-card {
  display: flex;
  flex-direction: column;
  gap: 6px;
  background-color: var(--color-card-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 20px;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.next-card:hover {
  border-color: var(--color-primary);
  box-shadow: 0 4px 16px rgba(255, 90, 54, 0.08);
}

.next-card-title {
  font-size: 16px;
  font-weight: 600;
  color: var(--color-secondary);
}

.next-card-desc {
  font-size: 14px;
  color: var(--color-muted);
}

/* ==========================================================================
   Pages — 常见问题页
   ========================================================================== */

.faq-section {
  margin-bottom: var(--space-lg);
}

.faq-section h2 {
  font-size: 22px;
  margin-bottom: var(--space-md);
  padding-bottom: 8px;
  border-bottom: 1px solid var(--color-border);
}

.faq-media {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-lg);
  align-items: center;
  background-color: var(--color-card-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-md);
}

.faq-figure {
  border-radius: var(--radius-md);
  overflow: hidden;
  background-color: #F0EBE4;
}

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

.faq-media-text p {
  font-size: 15px;
  color: var(--color-text);
}

.faq-media-text p:last-child {
  margin-bottom: 0;
}

/* ==========================================================================
   Pages — 关于本站页
   ========================================================================== */

.about-section {
  margin-bottom: var(--space-lg);
}

.section-heading {
  margin-bottom: var(--space-md);
}

.section-heading h2 {
  font-size: 24px;
  margin-bottom: 6px;
}

.standard-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-md);
}

.standard-card {
  background-color: var(--color-card-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 20px;
}

.standard-card h3 {
  font-size: 16px;
  color: var(--color-primary);
  margin-bottom: 8px;
}

.standard-card p {
  font-size: 14px;
  color: var(--color-text);
  margin-bottom: 0;
}

.boundary-list {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-md);
}

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

.boundary-item h3 {
  font-size: 16px;
  color: var(--color-primary);
  margin-bottom: 8px;
}

.boundary-item p {
  font-size: 14px;
  color: var(--color-text);
  margin-bottom: 0;
}

.nav-index-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-md);
}

.nav-index-card {
  display: flex;
  flex-direction: column;
  gap: 6px;
  background-color: var(--color-card-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 20px;
  transition: border-color 0.2s ease;
}

.nav-index-card:hover {
  border-color: var(--color-primary);
}

.nav-index-card h3 {
  font-size: 16px;
  color: var(--color-secondary);
}

.nav-index-card p {
  font-size: 14px;
  color: var(--color-muted);
  margin-bottom: 0;
}

.feedback-note {
  font-size: 14px;
  color: var(--color-muted);
  background-color: rgba(255, 201, 60, 0.15);
  border-left: 3px solid var(--color-accent);
  padding: 12px 16px;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
}

/* ==========================================================================
   Pages — 404 页
   ========================================================================== */

.error-main {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding-top: var(--space-xl);
  padding-bottom: var(--space-xl);
  text-align: center;
}

.error-section {
  max-width: 560px;
  padding: 0 var(--container-padding);
}

.error-code {
  font-family: var(--font-mono);
  font-size: 72px;
  font-weight: 800;
  color: var(--color-primary);
  line-height: 1.1;
  margin-bottom: 12px;
}

.error-section h1 {
  font-size: 28px;
  margin-bottom: 12px;
}

.error-desc {
  font-size: 16px;
  color: var(--color-muted);
  margin-bottom: 24px;
}

.error-back {
  display: inline-block;
  background-color: var(--color-primary);
  color: #FFFFFF;
  padding: 10px 24px;
  border-radius: var(--radius-sm);
  font-size: 15px;
  font-weight: 600;
  transition: background-color 0.2s ease;
}

.error-back:hover {
  background-color: #E84A28;
  color: #FFFFFF;
}

.error-links {
  margin-top: var(--space-lg);
  padding: 0 var(--container-padding);
}

.error-links h2 {
  font-size: 20px;
  margin-bottom: var(--space-sm);
}

.error-links ul {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 8px 24px;
}

.error-links a {
  font-size: 15px;
  color: var(--color-primary);
  font-weight: 600;
}

.error-links a:hover {
  text-decoration: underline;
}

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

/* ---- 平板（≤1024px） ---- */

@media (max-width: 1024px) {
  .cover-grid {
    grid-template-columns: repeat(3, 1fr);
  }

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

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

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

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

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

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

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

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

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

/* ---- 手机（≤768px） ---- */

@media (max-width: 768px) {
  :root {
    --container-padding: 16px;
  }

  .header-inner {
    height: 56px;
  }

  .brand-name {
    font-size: 20px;
  }

  /* 汉堡按钮显示 */
  .nav-toggle {
    display: flex;
  }

  /* 导航列表收起 */
  .site-nav {
    order: 3;
    width: 100%;
  }

  .nav-list {
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    background-color: var(--color-card-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    margin-top: 8px;
    padding: 8px;
    width: 100%;
  }

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

  .nav-list a {
    display: block;
    padding: 12px 14px;
  }

  /* 头部布局调整 */
  .header-inner {
    flex-wrap: wrap;
    position: relative;
  }

  /* ---- 首页 ---- */

  .hero-editorial {
    grid-template-columns: 1fr;
  }

  .hero-secondary {
    flex-direction: row;
  }

  .hero-mini {
    flex: 1;
  }

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

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

  .genre-tagwall {
    grid-template-columns: 1fr;
  }

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

  .section-head {
    flex-direction: column;
    align-items: flex-start;
    gap: 4px;
  }

  /* ---- 内页 ---- */

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

  .genre-card {
    grid-template-columns: 1fr;
  }

  .genre-card-media {
    min-height: 160px;
    order: -1;
  }

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

  .card-grid {
    grid-template-columns: 1fr;
  }

  .genre-rank-grid {
    grid-template-columns: 1fr;
  }

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

  .step-item {
    grid-template-columns: 1fr;
  }

  .step-media {
    min-height: 140px;
  }

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

  .next-links {
    grid-template-columns: 1fr;
  }

  .faq-media {
    grid-template-columns: 1fr;
  }

  .standard-grid {
    grid-template-columns: 1fr;
  }

  .boundary-list {
    grid-template-columns: 1fr;
  }

  .nav-index-grid {
    grid-template-columns: 1fr;
  }

  .about-vision-block {
    grid-template-columns: 1fr;
  }

  /* 章节动态列表 */
  .chapter-item {
    flex-wrap: wrap;
    gap: 6px 12px;
  }

  .chapter-dir {
    min-width: 100%;
    font-size: 15px;
  }

  .chapter-desc {
    flex: 1 1 100%;
    font-size: 14px;
  }

  .chapter-time {
    min-width: auto;
  }

  /* ---- 页脚 ---- */

  .footer-inner {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-sm);
  }

  .footer-nav {
    gap: 4px 16px;
  }

  .footer-copy {
    text-align: left;
  }
}

/* ---- 小手机（≤390px） ---- */

@media (max-width: 390px) {
  .cover-grid {
    grid-template-columns: 1fr;
  }

  .hero-secondary {
    flex-direction: column;
  }

  .error-code {
    font-size: 56px;
  }
}