/* ============================================================
   base — 全局基础样式
   ============================================================ */
:root {
  --color-primary: #FF6B6B;
  --color-secondary: #4ECDC4;
  --color-text: #2D3436;
  --color-bg: #FFFFFF;
  --color-bg-gray: #F8F9FA;
  --color-border: #E9ECEF;
  --color-text-light: #6C757D;
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 8px;
  --shadow-sm: 0 1px 3px rgba(45, 52, 54, 0.08);
  --shadow-md: 0 4px 12px rgba(45, 52, 54, 0.08);
  --container-max: 1200px;
  --header-height: 64px;
  --font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Segoe UI", Roboto, sans-serif;
}

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

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

body {
  font-family: var(--font-family);
  font-size: 16px;
  line-height: 1.6;
  color: var(--color-text);
  background-color: var(--color-bg);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

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

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

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

ul,
ol {
  list-style: none;
}

button {
  font-family: inherit;
  border: none;
  background: none;
  cursor: pointer;
}

/* ============================================================
   layout — 全站布局骨架
   ============================================================ */

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

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

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

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

.brand-logo {
  width: 32px;
  height: 32px;
  border-radius: var(--radius-sm);
  background-color: var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  font-weight: 700;
  color: #fff;
}

.brand-tag {
  font-size: 20px;
  font-weight: 700;
  color: var(--color-text);
  letter-spacing: 0.02em;
  white-space: nowrap;
}

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

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

.nav-list li a {
  display: block;
  padding: 8px 16px;
  border-radius: var(--radius-md);
  font-size: 15px;
  font-weight: 500;
  color: var(--color-text);
  transition: background-color 0.2s ease, color 0.2s ease;
}

.nav-list li a:hover {
  color: var(--color-primary);
  background-color: var(--color-bg-gray);
}

.nav-list li a.is-current {
  color: var(--color-primary);
  background-color: rgba(255, 107, 107, 0.08);
  font-weight: 600;
}

.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
  border-radius: var(--radius-sm);
}

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

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

.site-footer {
  background-color: var(--color-bg-gray);
  border-top: 1px solid var(--color-border);
  margin-top: auto;
}

.footer-inner {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 32px 24px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

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

.footer-brand strong {
  color: var(--color-primary);
  font-weight: 600;
}

.footer-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 24px;
}

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

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

.copyright {
  font-size: 13px;
  color: var(--color-text-light);
  border-top: 1px solid var(--color-border);
  padding-top: 16px;
}

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

/* 面包屑 */
.breadcrumb {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 16px 24px 0;
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  color: var(--color-text-light);
}

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

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

.breadcrumb-sep {
  color: #ADB5BD;
}

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

/* 页面标题区 */
.page-header {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 24px 24px 8px;
}

.page-title {
  font-size: 28px;
  font-weight: 700;
  line-height: 1.3;
  color: var(--color-text);
  margin-bottom: 8px;
}

.page-description {
  font-size: 15px;
  color: var(--color-text-light);
  max-width: 640px;
}

/* 区块标题 */
.section-title {
  font-size: 22px;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 12px;
}

.section-desc {
  font-size: 14px;
  color: var(--color-text-light);
  margin-bottom: 16px;
}

.section-intro {
  font-size: 15px;
  color: var(--color-text-light);
  margin-bottom: 20px;
}

/* 漫画卡片 — 首页横向滚动 */
.comic-card {
  flex-shrink: 0;
  width: 160px;
  border-radius: var(--radius-md);
  overflow: hidden;
  background-color: var(--color-bg);
  border: 1px solid var(--color-border);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.comic-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

.comic-card a {
  display: block;
}

.comic-card img {
  width: 160px;
  height: 200px;
  object-fit: cover;
}

.comic-card h3 {
  font-size: 14px;
  font-weight: 600;
  padding: 8px 10px 4px;
  line-height: 1.4;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.comic-card .status {
  display: inline-block;
  margin: 0 10px 10px;
  padding: 2px 8px;
  font-size: 12px;
  color: var(--color-primary);
  background-color: rgba(255, 107, 107, 0.08);
  border-radius: 10px;
}

/* 区块标题行 */
.section-heading {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 16px;
}

.section-heading h1,
.section-heading h2 {
  font-size: 22px;
  font-weight: 700;
  color: var(--color-text);
}

.section-more {
  font-size: 14px;
  color: var(--color-primary);
  font-weight: 500;
  padding: 4px 0;
}

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

.tag {
  display: inline-block;
  padding: 8px 16px;
  background-color: var(--color-bg-gray);
  border: 1px solid var(--color-border);
  border-radius: 20px;
  font-size: 14px;
  color: var(--color-text);
  transition: all 0.2s ease;
  min-height: 36px;
  line-height: 1.4;
}

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

/* 榜单条目 — 首页与榜单页共用 */
.rank-item {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 12px 0;
  border-bottom: 1px solid var(--color-border);
}

.rank-no {
  font-size: 18px;
  font-weight: 700;
  color: var(--color-primary);
  min-width: 32px;
}

.rank-item img {
  width: 56px;
  height: 72px;
  object-fit: cover;
  border-radius: var(--radius-sm);
}

.rank-name {
  font-size: 15px;
  font-weight: 600;
  flex: 1;
}

.rank-reason {
  font-size: 13px;
  color: var(--color-text-light);
  flex: 1;
  line-height: 1.5;
}

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

.home-main {
  width: 100%;
}

/* 今日更新 */
.today-updates {
  background-color: var(--color-bg);
  padding: 32px 0 24px;
}

.today-updates .section-heading {
  max-width: var(--container-max);
  margin: 0 auto 16px;
  padding: 0 24px;
}

.today-updates .section-heading h1 {
  font-size: 26px;
}

.updates-scroll {
  display: flex;
  gap: 16px;
  overflow-x: auto;
  padding: 4px 24px 12px;
  scroll-snap-type: x mandatory;
  -webkit-overflow-scrolling: touch;
}

.updates-scroll .comic-card {
  scroll-snap-align: start;
}

.updates-scroll::-webkit-scrollbar {
  height: 4px;
}

.updates-scroll::-webkit-scrollbar-thumb {
  background-color: var(--color-border);
  border-radius: 2px;
}

/* 题材分类条 */
.category-strip {
  background-color: var(--color-bg-gray);
  padding: 24px 0;
}

.category-strip h2 {
  max-width: var(--container-max);
  margin: 0 auto 16px;
  padding: 0 24px;
  font-size: 20px;
  font-weight: 700;
}

.category-strip .tag-list {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 24px;
}

/* 人气榜单预览 */
.popular-preview {
  padding: 32px 0;
}

.popular-preview .section-heading {
  max-width: var(--container-max);
  margin: 0 auto 16px;
  padding: 0 24px;
}

.rank-list {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 24px;
}

/* 指南入口 */
.guide-entry {
  background-color: var(--color-bg-gray);
  padding: 32px 0;
}

.guide-entry h2 {
  max-width: var(--container-max);
  margin: 0 auto 20px;
  padding: 0 24px;
  font-size: 20px;
  font-weight: 700;
}

.guide-cards {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 24px;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
}

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

.guide-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  color: var(--color-text);
}

.guide-card h3 {
  font-size: 17px;
  font-weight: 600;
  margin-bottom: 6px;
  color: var(--color-primary);
}

.guide-card p {
  font-size: 14px;
  color: var(--color-text-light);
  line-height: 1.5;
}

/* ============================================================
   pages — 内页通用
   ============================================================ */

.inner-main {
  width: 100%;
  padding-bottom: 48px;
}

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

.page-layout {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 16px 24px 0;
  display: grid;
  grid-template-columns: 240px 1fr;
  gap: 24px;
  align-items: start;
}

.sidebar-panel {
  background-color: var(--color-bg-gray);
  border-radius: var(--radius-md);
  padding: 20px;
  position: sticky;
  top: calc(var(--header-height) + 16px);
}

.sidebar-title {
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 12px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--color-border);
}

.topic-index {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.topic-index li a {
  display: block;
  padding: 6px 8px;
  border-radius: var(--radius-sm);
  font-size: 14px;
  color: var(--color-text);
  transition: background-color 0.2s ease, color 0.2s ease;
}

.topic-index li a:hover {
  background-color: rgba(255, 107, 107, 0.08);
  color: var(--color-primary);
}

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

.category-section {
  margin-bottom: 32px;
}

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

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

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

.category-card h3 {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 8px;
  color: var(--color-primary);
}

.category-card h3 a {
  color: inherit;
}

.category-card p {
  font-size: 14px;
  color: var(--color-text-light);
  line-height: 1.5;
}

.hot-topics-section {
  margin-bottom: 32px;
}

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

.hot-topic-item {
  display: flex;
  gap: 12px;
  background-color: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 12px;
  align-items: center;
}

.topic-cover {
  flex-shrink: 0;
  width: 72px;
  height: 96px;
  border-radius: var(--radius-sm);
  overflow: hidden;
  background-color: var(--color-bg-gray);
}

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

.topic-detail {
  min-width: 0;
}

.topic-detail h3 {
  font-size: 15px;
  font-weight: 600;
  margin-bottom: 4px;
}

.topic-detail p {
  font-size: 13px;
  color: var(--color-text-light);
  line-height: 1.4;
}

.category-tip {
  background-color: var(--color-bg-gray);
  border-radius: var(--radius-md);
  padding: 20px;
}

.category-tip p {
  font-size: 14px;
  color: var(--color-text-light);
  line-height: 1.6;
}

.category-tip a {
  color: var(--color-primary);
  font-weight: 500;
}

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

.layout-shell {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 16px 24px 0;
  display: grid;
  grid-template-columns: 1fr 280px;
  gap: 24px;
  align-items: start;
}

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

.guide-section {
  margin-bottom: 32px;
}

.guide-section h2 {
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 8px;
}

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

.step-card {
  display: flex;
  gap: 12px;
  background-color: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 16px;
}

.step-number {
  flex-shrink: 0;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background-color: var(--color-primary);
  color: #fff;
  font-size: 15px;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
}

.step-body h3 {
  font-size: 15px;
  font-weight: 600;
  margin-bottom: 4px;
}

.step-body p {
  font-size: 14px;
  color: var(--color-text-light);
  line-height: 1.5;
}

.tips-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-top: 16px;
}

.tip-card {
  background-color: var(--color-bg-gray);
  border-radius: var(--radius-md);
  padding: 16px;
}

.tip-card h3 {
  font-size: 15px;
  font-weight: 600;
  margin-bottom: 6px;
}

.tip-card p {
  font-size: 14px;
  color: var(--color-text-light);
  line-height: 1.5;
}

.collection-wrap {
  margin-top: 16px;
  background-color: var(--color-bg-gray);
  border-radius: var(--radius-md);
  padding: 16px;
}

.collection-text {
  font-size: 14px;
  color: var(--color-text-light);
  line-height: 1.6;
}

.faq-section {
  margin-bottom: 0;
}

.faq-item {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  margin-bottom: 8px;
  background-color: var(--color-bg);
}

.faq-item summary {
  padding: 14px 16px;
  font-size: 15px;
  font-weight: 500;
  cursor: pointer;
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

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

.faq-item summary::after {
  content: "+";
  font-size: 20px;
  color: var(--color-primary);
  flex-shrink: 0;
}

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

.faq-item p {
  padding: 0 16px 14px;
  font-size: 14px;
  color: var(--color-text-light);
  line-height: 1.6;
}

.guide-sidebar {
  position: sticky;
  top: calc(var(--header-height) + 16px);
}

.sidebar-card {
  background-color: var(--color-bg-gray);
  border-radius: var(--radius-md);
  padding: 20px;
  margin-bottom: 16px;
}

.sidebar-card h2 {
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 12px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--color-border);
}

.sidebar-links {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.sidebar-links li a {
  display: block;
  padding: 6px 8px;
  font-size: 14px;
  color: var(--color-text);
  border-radius: var(--radius-sm);
  transition: background-color 0.2s ease, color 0.2s ease;
}

.sidebar-links li a:hover {
  background-color: rgba(255, 107, 107, 0.08);
  color: var(--color-primary);
}

/* ============================================================
   pages — 人气榜单页
   ============================================================ */

.ranking-list {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 16px 24px 0;
}

.ranking-list h2 {
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 8px;
}

.ranking-list .rank-item {
  background-color: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 16px;
  margin-bottom: 12px;
  display: flex;
  gap: 16px;
  align-items: center;
}

.rank-number {
  font-size: 20px;
  font-weight: 700;
  color: var(--color-primary);
  min-width: 36px;
  text-align: center;
}

.rank-cover {
  width: 64px;
  height: 84px;
  object-fit: cover;
  border-radius: var(--radius-sm);
  flex-shrink: 0;
}

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

.rank-info h3 {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 4px;
}

.rank-info .rank-reason {
  font-size: 14px;
  color: var(--color-text-light);
  line-height: 1.5;
  margin-bottom: 4px;
}

.rank-change {
  font-size: 13px;
  color: var(--color-text-light);
}

.trend-up {
  color: var(--color-primary);
  font-weight: 500;
}

.trend-flat {
  color: var(--color-secondary);
  font-weight: 500;
}

.trend-down {
  color: #ADB5BD;
  font-weight: 500;
}

.trending-fast {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 32px 24px 0;
}

.trending-fast h2 {
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 8px;
}

.trending-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  margin-top: 16px;
}

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

.trend-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

.trend-card img {
  width: 100%;
  height: 160px;
  object-fit: cover;
}

.trend-card h3 {
  font-size: 15px;
  font-weight: 600;
  padding: 12px 12px 4px;
}

.trend-card p {
  font-size: 13px;
  color: var(--color-text-light);
  padding: 0 12px 12px;
  line-height: 1.5;
}

.related-links {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 32px 24px 0;
}

.related-links h2 {
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 8px;
}

.related-links p {
  font-size: 14px;
  color: var(--color-text-light);
}

.related-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 12px;
}

.related-list li a {
  display: inline-block;
  padding: 6px 14px;
  background-color: var(--color-bg-gray);
  border-radius: 20px;
  font-size: 14px;
  color: var(--color-text);
  transition: background-color 0.2s ease, color 0.2s ease;
}

.related-list li a:hover {
  background-color: var(--color-primary);
  color: #fff;
}

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

.update-section {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 16px 24px 0;
}

.update-group {
  margin-bottom: 28px;
}

.update-date {
  font-size: 17px;
  font-weight: 600;
  color: var(--color-primary);
  margin-bottom: 12px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--color-border);
}

.update-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

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

.update-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

.update-link {
  display: block;
}

.update-cover {
  width: 100%;
  height: 160px;
  object-fit: cover;
}

.update-title {
  font-size: 15px;
  font-weight: 600;
  padding: 10px 12px 4px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.update-meta {
  font-size: 13px;
  color: var(--color-text-light);
  padding: 0 12px 12px;
}

.update-notice {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 16px 24px 0;
}

.notice-content {
  background-color: var(--color-bg-gray);
  border-radius: var(--radius-md);
  padding: 20px;
}

.notice-content p {
  font-size: 14px;
  color: var(--color-text-light);
  line-height: 1.6;
  margin-bottom: 8px;
}

.notice-content a {
  color: var(--color-primary);
  font-weight: 500;
}

.notice-content span {
  font-weight: 600;
  color: var(--color-text);
}

/* ============================================================
   pages — 恋爱漫画推荐页
   ============================================================ */

.love-list-section {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 16px 24px 0;
}

.comic-card-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
  margin-top: 16px;
}

.love-list-section .comic-card {
  display: flex;
  gap: 16px;
  width: auto;
  padding: 16px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background-color: var(--color-bg);
}

.comic-cover {
  flex-shrink: 0;
  width: 96px;
  height: 128px;
  border-radius: var(--radius-sm);
  overflow: hidden;
  background-color: var(--color-bg-gray);
}

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

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

.comic-title {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 6px;
}

.comic-desc {
  font-size: 14px;
  color: var(--color-text-light);
  line-height: 1.5;
  margin-bottom: 8px;
}

.comic-reason {
  font-size: 13px;
  color: var(--color-text-light);
  line-height: 1.5;
}

.comic-reason strong {
  color: var(--color-primary);
  font-weight: 600;
}

.genre-analysis-section {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 32px 24px 0;
}

.genre-analysis-section p {
  font-size: 14px;
  color: var(--color-text-light);
  line-height: 1.7;
  margin-bottom: 12px;
}

.genre-list {
  margin: 16px 0;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
}

.genre-list li {
  background-color: var(--color-bg-gray);
  border-radius: var(--radius-md);
  padding: 16px;
  font-size: 14px;
  color: var(--color-text-light);
  line-height: 1.6;
}

.genre-list li strong {
  display: block;
  font-size: 15px;
  color: var(--color-text);
  margin-bottom: 4px;
}

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

.error-main {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 48px 24px;
  flex: 1;
}

.error-panel {
  text-align: center;
  max-width: 480px;
  width: 100%;
  background-color: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 48px 32px;
}

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

.error-panel h1 {
  font-size: 22px;
  font-weight: 700;
  margin-bottom: 12px;
}

.error-desc {
  font-size: 15px;
  color: var(--color-text-light);
  margin-bottom: 24px;
  line-height: 1.6;
}

.btn-home {
  display: inline-block;
  padding: 12px 32px;
  background-color: var(--color-primary);
  color: #fff;
  border-radius: var(--radius-md);
  font-size: 15px;
  font-weight: 500;
  margin-bottom: 24px;
  transition: background-color 0.2s ease;
  min-height: 44px;
  line-height: 1.4;
}

.btn-home:hover {
  background-color: #e85a5a;
  color: #fff;
}

.error-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 16px;
}

.error-links a {
  font-size: 14px;
  color: var(--color-secondary);
  font-weight: 500;
}

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

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

/* 平板及以下 */
@media (max-width: 992px) {
  .page-layout {
    grid-template-columns: 1fr;
  }

  .sidebar-panel {
    position: static;
    order: -1;
  }

  .topic-index {
    flex-direction: row;
    flex-wrap: wrap;
    gap: 4px;
  }

  .topic-index li a {
    padding: 6px 12px;
    background-color: var(--color-bg);
    border-radius: 16px;
    font-size: 13px;
  }

  .layout-shell {
    grid-template-columns: 1fr;
  }

  .guide-sidebar {
    position: static;
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
  }

  .sidebar-card {
    margin-bottom: 0;
  }

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

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

/* 手机端 */
@media (max-width: 640px) {
  .header-inner {
    padding: 0 16px;
  }

  .brand-tag {
    font-size: 18px;
  }

  .nav-toggle {
    display: flex;
  }

  .nav-list {
    display: none;
    position: absolute;
    top: var(--header-height);
    left: 0;
    right: 0;
    background-color: var(--color-bg);
    border-bottom: 1px solid var(--color-border);
    flex-direction: column;
    align-items: stretch;
    padding: 8px 16px;
    box-shadow: var(--shadow-md);
  }

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

  .nav-list li a {
    padding: 12px 16px;
    font-size: 16px;
    min-height: 44px;
    display: flex;
    align-items: center;
  }

  .breadcrumb {
    padding: 12px 16px 0;
  }

  .page-header {
    padding: 20px 16px 8px;
  }

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

  .page-description {
    font-size: 14px;
  }

  .today-updates .section-heading,
  .category-strip h2,
  .category-strip .tag-list,
  .popular-preview .section-heading,
  .rank-list,
  .guide-entry h2,
  .guide-cards {
    padding-left: 16px;
    padding-right: 16px;
  }

  .updates-scroll {
    padding-left: 16px;
    padding-right: 16px;
  }

  .comic-card {
    width: 140px;
  }

  .comic-card img {
    width: 140px;
    height: 176px;
  }

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

  .page-layout {
    padding: 12px 16px 0;
  }

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

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

  .layout-shell {
    padding: 12px 16px 0;
  }

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

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

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

  .ranking-list {
    padding: 12px 16px 0;
  }

  .ranking-list .rank-item {
    flex-wrap: wrap;
    gap: 12px;
  }

  .rank-number {
    min-width: 28px;
    font-size: 18px;
  }

  .rank-cover {
    width: 56px;
    height: 72px;
  }

  .trending-fast {
    padding: 24px 16px 0;
  }

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

  .related-links {
    padding: 24px 16px 0;
  }

  .update-section {
    padding: 12px 16px 0;
  }

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

  .update-cover {
    height: 180px;
  }

  .update-notice {
    padding: 12px 16px 0;
  }

  .love-list-section {
    padding: 12px 16px 0;
  }

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

  .love-list-section .comic-card {
    flex-direction: column;
  }

  .comic-cover {
    width: 100%;
    height: 180px;
  }

  .comic-cover img {
    width: 100%;
    height: 100%;
  }

  .genre-analysis-section {
    padding: 24px 16px 0;
  }

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

  .error-main {
    padding: 24px 16px;
  }

  .error-panel {
    padding: 32px 20px;
  }

  .error-code {
    font-size: 48px;
  }

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

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

  .footer-nav a {
    font-size: 13px;
    padding: 6px 0;
    min-height: 32px;
  }
}

/* 小手机 */
@media (max-width: 380px) {
  .brand-tag {
    font-size: 16px;
  }

  .comic-card {
    width: 130px;
  }

  .comic-card img {
    width: 130px;
    height: 164px;
  }

  .rank-item {
    flex-wrap: wrap;
    gap: 8px;
  }

  .rank-reason {
    flex-basis: 100%;
    margin-left: 48px;
  }
}