/* ==========================================================================
   漫画社 - 全站样式表
   版本: 1.0
   说明: 本样式表覆盖整站全部页面，包含基础、布局、组件、页面及响应式规则。
   ========================================================================== */

/* ==========================================================================
   Base - 基础样式
   ========================================================================== */

:root {
  --color-primary: #2c3e50;
  --color-accent: #e74c3c;
  --color-bg-light: #ecf0f1;
  --color-link: #3498db;
  --color-text: #333333;
  --color-text-light: #666666;
  --color-white: #ffffff;
  --color-border: #dddddd;
  --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  --container-width: 1200px;
  --radius-sm: 4px;
  --radius-md: 8px;
  --transition-base: 0.3s ease;
}

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

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

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

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

a {
  color: var(--color-link);
  text-decoration: none;
  transition: color var(--transition-base);
}

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

ul,
ol {
  list-style-position: inside;
  padding-left: 0;
}

li {
  list-style: none;
}

h1,
h2,
h3,
h4,
h5,
h6 {
  font-weight: 700;
  line-height: 1.4;
  color: var(--color-primary);
}

h1 {
  font-size: 2rem;
}

h2 {
  font-size: 1.5rem;
}

h3 {
  font-size: 1.125rem;
}

p {
  margin-bottom: 0.5rem;
}

/* 跳转链接 */
.skip-link {
  position: absolute;
  top: -40px;
  left: 0;
  background: var(--color-primary);
  color: var(--color-white);
  padding: 8px 16px;
  z-index: 9999;
  transition: top 0.3s ease;
}

.skip-link:focus {
  top: 0;
}

/* ==========================================================================
   Layout - 布局骨架
   ========================================================================== */

/* 全站容器 */
.site-header,
.site-footer,
.site-main {
  width: 100%;
}

.header-inner,
.footer-inner,
.site-main {
  max-width: var(--container-width);
  margin: 0 auto;
  padding-left: 20px;
  padding-right: 20px;
}

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

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

/* 首页主体 */
.home-main {
  padding-top: 0;
}

/* 内页主体 */
.inner-main {
  padding-top: 30px;
  padding-bottom: 60px;
}

/* ==========================================================================
   Components - 页头
   ========================================================================== */

.site-header {
  background-color: var(--color-primary);
  border-bottom: 3px solid var(--color-accent);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 70px;
  padding-top: 10px;
  padding-bottom: 10px;
}

.brand {
  flex-shrink: 0;
}

.brand a {
  display: flex;
  flex-direction: column;
  color: var(--color-white);
}

.brand-name {
  font-size: 1.5rem;
  font-weight: 700;
  line-height: 1.2;
  color: var(--color-white);
}

.brand-slogan {
  font-size: 0.75rem;
  color: rgba(255, 255, 255, 0.7);
  line-height: 1.4;
}

/* 导航 */
.nav-toggle {
  display: none;
  background: transparent;
  border: none;
  cursor: pointer;
  padding: 10px;
  flex-direction: column;
  gap: 5px;
}

.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background-color: var(--color-white);
  transition: background-color 0.3s ease;
}

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

.nav-list {
  display: flex;
  gap: 0;
  list-style: none;
}

.nav-list li {
  margin: 0;
}

.nav-list a {
  display: block;
  padding: 10px 16px;
  color: rgba(255, 255, 255, 0.85);
  font-size: 0.9375rem;
  border-radius: var(--radius-sm);
  transition: background-color 0.3s ease, color 0.3s ease;
}

.nav-list a:hover {
  background-color: rgba(255, 255, 255, 0.1);
  color: var(--color-white);
}

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

/* ==========================================================================
   Components - 页脚
   ========================================================================== */

.site-footer {
  background-color: var(--color-primary);
  color: rgba(255, 255, 255, 0.8);
  margin-top: auto;
}

.footer-inner {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 30px;
  padding-top: 40px;
  padding-bottom: 30px;
}

.footer-brand p {
  font-size: 0.875rem;
  line-height: 1.6;
  color: rgba(255, 255, 255, 0.7);
}

.footer-brand strong {
  display: block;
  font-size: 1.25rem;
  color: var(--color-white);
  margin-bottom: 8px;
}

.footer-nav h3 {
  font-size: 0.9375rem;
  color: var(--color-white);
  margin-bottom: 12px;
  font-weight: 600;
}

.footer-nav ul {
  list-style: none;
}

.footer-nav li {
  margin-bottom: 8px;
}

.footer-nav a {
  color: rgba(255, 255, 255, 0.7);
  font-size: 0.875rem;
}

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

.footer-copy {
  grid-column: 1 / -1;
  border-top: 1px solid rgba(255, 255, 255, 0.15);
  padding-top: 20px;
  margin-top: 10px;
}

.footer-copy p {
  font-size: 0.8125rem;
  color: rgba(255, 255, 255, 0.5);
  text-align: center;
  margin: 0;
}

/* ==========================================================================
   Components - 面包屑
   ========================================================================== */

.breadcrumb {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 20px;
  font-size: 0.875rem;
  color: var(--color-text-light);
}

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

.breadcrumb a:hover {
  color: var(--color-accent);
  text-decoration: underline;
}

.breadcrumb-sep {
  color: #999999;
}

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

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

.page-header {
  margin-bottom: 30px;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--color-border);
}

.page-title {
  font-size: 1.875rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 10px;
  line-height: 1.3;
}

.page-description {
  font-size: 1rem;
  color: var(--color-text-light);
  max-width: 700px;
  line-height: 1.6;
}

/* ==========================================================================
   Components - 通用按钮
   ========================================================================== */

.btn-primary,
.btn-secondary {
  display: inline-block;
  padding: 10px 24px;
  font-size: 0.9375rem;
  font-weight: 600;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: background-color 0.3s ease, color 0.3s ease, border-color 0.3s ease;
  border: 2px solid transparent;
  text-align: center;
}

.btn-primary {
  background-color: var(--color-accent);
  color: var(--color-white);
  border-color: var(--color-accent);
}

.btn-primary:hover {
  background-color: #c0392b;
  border-color: #c0392b;
  color: var(--color-white);
}

.btn-secondary {
  background-color: transparent;
  color: var(--color-primary);
  border-color: var(--color-primary);
}

.btn-secondary:hover {
  background-color: var(--color-primary);
  color: var(--color-white);
}

/* ==========================================================================
   Components - 内容图片
   ========================================================================== */

.content-media {
  margin: 20px 0;
}

.content-media img {
  width: 100%;
  height: auto;
  border-radius: var(--radius-md);
}

.content-media figcaption {
  font-size: 0.8125rem;
  color: var(--color-text-light);
  text-align: center;
  margin-top: 8px;
  line-height: 1.5;
}

.content-media-inline {
  max-width: 640px;
  margin-left: auto;
  margin-right: auto;
}

/* ==========================================================================
   Components - 数据表格
   ========================================================================== */

.table-wrap {
  overflow-x: auto;
  margin: 20px 0;
}

.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9375rem;
}

.data-table caption {
  font-weight: 600;
  font-size: 1rem;
  color: var(--color-primary);
  text-align: left;
  margin-bottom: 10px;
}

.data-table th,
.data-table td {
  padding: 12px 16px;
  border: 1px solid var(--color-border);
  text-align: left;
  vertical-align: top;
}

.data-table th {
  background-color: var(--color-bg-light);
  font-weight: 600;
  color: var(--color-primary);
  white-space: nowrap;
}

.data-table td {
  line-height: 1.6;
}

.table-note {
  font-size: 0.8125rem;
  color: var(--color-text-light);
  margin-top: 10px;
  padding-left: 14px;
  border-left: 3px solid var(--color-accent);
}

/* ==========================================================================
   Components - 图文卡片
   ========================================================================== */

.rec-card,
.manga-card {
  display: grid;
  grid-template-columns: 200px 1fr;
  gap: 20px;
  padding: 20px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  margin-bottom: 20px;
  background-color: var(--color-white);
  transition: box-shadow 0.3s ease;
}

.rec-card:hover,
.manga-card:hover {
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
}

.rec-media,
.manga-cover {
  width: 200px;
  height: 260px;
  overflow: hidden;
  border-radius: var(--radius-sm);
  flex-shrink: 0;
}

.rec-media img,
.manga-cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.3s ease;
}

.rec-card:hover .rec-media img,
.manga-card:hover .manga-cover img {
  transform: scale(1.03);
}

.rec-info,
.manga-info {
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.rec-info h3,
.manga-info h3 {
  font-size: 1.25rem;
  margin-bottom: 8px;
}

.rec-info h3 a,
.manga-info h3 a {
  color: var(--color-primary);
}

.rec-info h3 a:hover,
.manga-info h3 a:hover {
  color: var(--color-accent);
}

.rec-meta,
.meta {
  font-size: 0.8125rem;
  color: var(--color-text-light);
  margin-bottom: 10px;
  line-height: 1.5;
}

.rec-desc,
.desc {
  font-size: 0.9375rem;
  line-height: 1.6;
  margin-bottom: 10px;
}

.rec-tip {
  font-size: 0.8125rem;
  color: var(--color-accent);
  background-color: #fdf0ef;
  padding: 6px 12px;
  border-radius: var(--radius-sm);
  display: inline-block;
  align-self: flex-start;
}

/* ==========================================================================
   Components - 推荐理由网格
   ========================================================================== */

.reason-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-top: 20px;
}

.reason-item {
  background-color: var(--color-bg-light);
  padding: 20px;
  border-radius: var(--radius-md);
  border-left: 3px solid var(--color-accent);
}

.reason-item h3 {
  font-size: 1rem;
  margin-bottom: 8px;
}

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

/* ==========================================================================
   Components - 相关链接
   ========================================================================== */

.related-links {
  margin-top: 40px;
  padding-top: 30px;
  border-top: 1px solid var(--color-border);
}

.related-links h2 {
  margin-bottom: 10px;
}

.related-links p {
  color: var(--color-text-light);
  font-size: 0.9375rem;
  margin-bottom: 15px;
}

.related-list {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  list-style: none;
}

.related-list li {
  margin: 0;
}

.related-list a {
  display: inline-block;
  padding: 8px 16px;
  background-color: var(--color-bg-light);
  border-radius: var(--radius-sm);
  font-size: 0.875rem;
  color: var(--color-primary);
  transition: background-color 0.3s ease, color 0.3s ease;
}

.related-list a:hover {
  background-color: var(--color-accent);
  color: var(--color-white);
}

/* ==========================================================================
   Pages - 首页
   ========================================================================== */

/* 公告栏 */
.notice-bar {
  background-color: var(--color-accent);
  color: var(--color-white);
  text-align: center;
  padding: 8px 20px;
}

.notice-bar p {
  font-size: 0.875rem;
  margin: 0;
  line-height: 1.5;
}

/* 首屏焦点区 */
.hero-section {
  background-color: var(--color-bg-light);
  padding: 50px 0;
}

.hero-section {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: center;
  max-width: var(--container-width);
  margin: 0 auto;
  padding-left: 20px;
  padding-right: 20px;
}

.hero-copy h1 {
  font-size: 2rem;
  margin-bottom: 16px;
  color: var(--color-primary);
}

.hero-copy p {
  font-size: 1rem;
  color: var(--color-text-light);
  line-height: 1.7;
  margin-bottom: 16px;
}

.hero-figure {
  margin: 0;
}

.hero-figure img {
  width: 100%;
  height: auto;
  border-radius: var(--radius-md);
}

/* 题材分类导航带 */
.genre-nav-section {
  padding: 50px 20px;
  max-width: var(--container-width);
  margin: 0 auto;
}

.genre-nav-section h2,
.recent-updates-section h2,
.popular-rank-section h2,
.guide-entry-section h2,
.featured-preview-section h2 {
  font-size: 1.5rem;
  margin-bottom: 8px;
  position: relative;
  padding-left: 14px;
}

.genre-nav-section h2::before,
.recent-updates-section h2::before,
.popular-rank-section h2::before,
.guide-entry-section h2::before,
.featured-preview-section h2::before {
  content: "";
  position: absolute;
  left: 0;
  top: 6px;
  width: 4px;
  height: 24px;
  background-color: var(--color-accent);
  border-radius: 2px;
}

.section-intro {
  color: var(--color-text-light);
  font-size: 0.9375rem;
  margin-bottom: 24px;
}

.genre-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.genre-tag {
  display: inline-block;
  padding: 10px 20px;
  background-color: var(--color-bg-light);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--color-primary);
  transition: all 0.3s ease;
}

.genre-tag:hover {
  background-color: var(--color-accent);
  border-color: var(--color-accent);
  color: var(--color-white);
}

/* 最近更新列表 */
.recent-updates-section {
  background-color: var(--color-bg-light);
  padding: 50px 0;
}

.recent-updates-section .section-intro {
  max-width: var(--container-width);
  margin-left: auto;
  margin-right: auto;
  padding-left: 20px;
  padding-right: 20px;
}

.recent-updates-section h2,
.recent-updates-section .section-intro {
  padding-left: 20px;
  padding-right: 20px;
  max-width: var(--container-width);
  margin-left: auto;
  margin-right: auto;
}

.updates-list {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 20px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.update-item {
  display: grid;
  grid-template-columns: 80px 1fr auto;
  gap: 16px;
  align-items: center;
  background-color: var(--color-white);
  padding: 14px 18px;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
  transition: box-shadow 0.3s ease;
}

.update-item:hover {
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.06);
}

.update-date {
  font-size: 0.8125rem;
  color: var(--color-text-light);
  background-color: var(--color-bg-light);
  padding: 4px 8px;
  border-radius: var(--radius-sm);
  text-align: center;
  white-space: nowrap;
}

.update-info h3 {
  font-size: 1rem;
  margin-bottom: 4px;
}

.update-info h3 a {
  color: var(--color-primary);
}

.update-info h3 a:hover {
  color: var(--color-accent);
}

.update-meta {
  font-size: 0.8125rem;
  color: var(--color-text-light);
  margin: 0;
}

.update-status {
  display: inline-block;
  font-size: 0.75rem;
  color: var(--color-accent);
  background-color: #fdf0ef;
  padding: 4px 10px;
  border-radius: var(--radius-sm);
  white-space: nowrap;
  font-weight: 500;
}

/* 人气榜单预览 */
.popular-rank-section {
  padding: 50px 20px;
  max-width: var(--container-width);
  margin: 0 auto;
}

.rank-list {
  list-style: none;
  counter-reset: rank-counter;
  display: flex;
  flex-direction: column;
  gap: 0;
}

.rank-item {
  display: grid;
  grid-template-columns: 56px 1fr;
  gap: 16px;
  align-items: center;
  padding: 14px 0;
  border-bottom: 1px solid var(--color-border);
}

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

.rank-number {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background-color: var(--color-bg-light);
  border-radius: var(--radius-sm);
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--color-primary);
}

.rank-item:nth-child(1) .rank-number {
  background-color: var(--color-accent);
  color: var(--color-white);
}

.rank-item:nth-child(2) .rank-number,
.rank-item:nth-child(3) .rank-number {
  background-color: #f39c12;
  color: var(--color-white);
}

.rank-content h3 {
  font-size: 1rem;
  margin-bottom: 4px;
}

.rank-content h3 a {
  color: var(--color-primary);
}

.rank-content h3 a:hover {
  color: var(--color-accent);
}

.rank-content p {
  font-size: 0.8125rem;
  color: var(--color-text-light);
  margin: 0;
  line-height: 1.5;
}

/* 阅读指南入口 */
.guide-entry-section {
  background-color: var(--color-bg-light);
  padding: 50px 0;
}

.guide-entry-section h2,
.guide-entry-section .section-intro {
  max-width: var(--container-width);
  margin-left: auto;
  margin-right: auto;
  padding-left: 20px;
  padding-right: 20px;
}

.guide-cards {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 20px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}

.guide-card {
  background-color: var(--color-white);
  padding: 24px;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
  display: flex;
  flex-direction: column;
}

.guide-card h3 {
  font-size: 1.125rem;
  margin-bottom: 8px;
}

.guide-card p {
  font-size: 0.875rem;
  color: var(--color-text-light);
  line-height: 1.6;
  margin-bottom: 16px;
  flex: 1;
}

.guide-card a {
  align-self: flex-start;
  color: var(--color-accent);
  font-weight: 500;
  font-size: 0.9375rem;
}

.guide-card a:hover {
  text-decoration: underline;
}

/* 长尾推荐预告 */
.featured-preview-section {
  padding: 50px 20px;
  max-width: var(--container-width);
  margin: 0 auto;
}

.preview-cards {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}

.preview-card {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  background-color: var(--color-white);
  transition: box-shadow 0.3s ease;
}

.preview-card:hover {
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
}

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

.preview-card h3 {
  font-size: 1.125rem;
  padding: 16px 16px 8px 16px;
}

.preview-card p {
  font-size: 0.875rem;
  color: var(--color-text-light);
  line-height: 1.6;
  padding: 0 16px;
  margin-bottom: 12px;
}

.preview-card a {
  display: inline-block;
  margin: 0 16px 16px 16px;
  color: var(--color-accent);
  font-weight: 500;
  font-size: 0.9375rem;
}

.preview-card a:hover {
  text-decoration: underline;
}

/* ==========================================================================
   Pages - 分类页 (categories)
   ========================================================================== */

.category-table-section {
  margin-bottom: 40px;
}

.category-table-section h2,
.category-desc-section h2,
.category-tip-section h2 {
  font-size: 1.375rem;
  margin-bottom: 12px;
  padding-bottom: 8px;
  border-bottom: 2px solid var(--color-bg-light);
}

.category-table-section p {
  color: var(--color-text-light);
  font-size: 0.9375rem;
  margin-bottom: 16px;
}

.desc-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-top: 20px;
}

.desc-item {
  background-color: var(--color-bg-light);
  padding: 20px;
  border-radius: var(--radius-md);
}

.desc-item h3 {
  font-size: 1rem;
  margin-bottom: 8px;
  color: var(--color-primary);
}

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

.desc-item p a {
  font-size: 0.8125rem;
}

.category-tip-section {
  background-color: var(--color-bg-light);
  padding: 24px;
  border-radius: var(--radius-md);
  margin-top: 40px;
}

.category-tip-section p {
  font-size: 0.9375rem;
  line-height: 1.6;
  margin-bottom: 8px;
}

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

/* ==========================================================================
   Pages - 阅读指南 (guide)
   ========================================================================== */

.guide-section {
  margin-bottom: 40px;
}

.guide-section h2 {
  font-size: 1.375rem;
  margin-bottom: 10px;
  padding-bottom: 8px;
  border-bottom: 2px solid var(--color-bg-light);
}

.guide-section > p {
  color: var(--color-text-light);
  font-size: 0.9375rem;
  margin-bottom: 20px;
}

/* 步骤列表 */
.step-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.step-item {
  display: grid;
  grid-template-columns: 48px 1fr;
  gap: 16px;
  background-color: var(--color-white);
  padding: 20px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
}

.step-number {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  background-color: var(--color-accent);
  color: var(--color-white);
  font-size: 1.125rem;
  font-weight: 700;
  border-radius: var(--radius-sm);
}

.step-content h3 {
  font-size: 1rem;
  margin-bottom: 6px;
}

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

/* 工具卡片 */
.tool-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.tool-card {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 20px;
  text-align: center;
  transition: box-shadow 0.3s ease;
}

.tool-card:hover {
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
}

.tool-card img {
  width: 100%;
  height: 140px;
  object-fit: cover;
  border-radius: var(--radius-sm);
  margin-bottom: 12px;
}

.tool-card h3 {
  font-size: 1rem;
  margin-bottom: 8px;
}

.tool-card p {
  font-size: 0.8125rem;
  color: var(--color-text-light);
  line-height: 1.5;
  margin: 0;
}

/* FAQ 折叠面板 */
.faq-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

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

.faq-item summary {
  padding: 16px 20px;
  font-weight: 600;
  font-size: 0.9375rem;
  color: var(--color-primary);
  cursor: pointer;
  list-style: none;
  position: relative;
  padding-right: 40px;
  transition: background-color 0.3s ease;
}

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

.faq-item summary::after {
  content: "+";
  position: absolute;
  right: 16px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 1.25rem;
  color: var(--color-accent);
  font-weight: 700;
}

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

.faq-item[open] summary {
  background-color: var(--color-bg-light);
}

.faq-item summary:hover {
  background-color: var(--color-bg-light);
}

.faq-item p {
  padding: 0 20px 16px 20px;
  font-size: 0.875rem;
  color: var(--color-text-light);
  line-height: 1.6;
  margin: 0;
}

/* ==========================================================================
   Pages - 恋爱漫画推荐 (romance)
   ========================================================================== */

.rec-section {
  margin-bottom: 40px;
}

.rec-section h2,
.rec-reasons h2,
.related-links h2 {
  font-size: 1.375rem;
  margin-bottom: 20px;
  padding-bottom: 8px;
  border-bottom: 2px solid var(--color-bg-light);
}

/* ==========================================================================
   Pages - 热血漫画推荐 (action)
   ========================================================================== */

.recommendation-list {
  margin-bottom: 40px;
}

.recommendation-list h2,
.recommendation-reasons h2,
.related-links h2 {
  font-size: 1.375rem;
  margin-bottom: 10px;
  padding-bottom: 8px;
  border-bottom: 2px solid var(--color-bg-light);
}

.recommendation-list > p,
.recommendation-reasons > p {
  color: var(--color-text-light);
  font-size: 0.9375rem;
  margin-bottom: 20px;
}

/* ==========================================================================
   Pages - 404 错误页
   ========================================================================== */

.error-main {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 60px 20px;
  min-height: 60vh;
}

.error-panel {
  text-align: center;
  max-width: 520px;
  width: 100%;
}

.error-code {
  font-size: 5rem;
  font-weight: 700;
  color: var(--color-accent);
  line-height: 1.2;
  margin-bottom: 10px;
}

.error-panel h1 {
  font-size: 1.5rem;
  margin-bottom: 12px;
}

.error-panel p {
  color: var(--color-text-light);
  font-size: 0.9375rem;
  line-height: 1.6;
  margin-bottom: 16px;
}

.error-actions {
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 20px;
}

.btn-back-home,
.btn-browse-categories {
  display: inline-block;
  padding: 10px 24px;
  font-size: 0.9375rem;
  font-weight: 600;
  border-radius: var(--radius-sm);
  transition: background-color 0.3s ease, color 0.3s ease;
}

.btn-back-home {
  background-color: var(--color-accent);
  color: var(--color-white);
}

.btn-back-home:hover {
  background-color: #c0392b;
  color: var(--color-white);
}

.btn-browse-categories {
  background-color: var(--color-bg-light);
  color: var(--color-primary);
}

.btn-browse-categories:hover {
  background-color: var(--color-primary);
  color: var(--color-white);
}

.error-tip {
  font-size: 0.8125rem;
  color: #999999;
}

/* ==========================================================================
   Responsive - 响应式
   ========================================================================== */

/* 移动端断点 768px */
@media (max-width: 768px) {
  /* 页头 */
  .header-inner {
    min-height: 60px;
    position: relative;
  }

  .nav-toggle {
    display: flex;
    z-index: 100;
  }

  .nav-toggle span {
    transition: transform 0.3s ease, opacity 0.3s ease;
  }

  .nav-toggle[aria-expanded="true"] span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
  }

  .nav-toggle[aria-expanded="true"] span:nth-child(2) {
    opacity: 0;
  }

  .nav-toggle[aria-expanded="true"] span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
  }

  .site-nav {
    position: absolute;
    top: 60px;
    left: 0;
    right: 0;
    background-color: var(--color-primary);
    z-index: 99;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
    display: block;
  }

  .nav-list {
    display: none;
    flex-direction: column;
    padding: 10px 0;
  }

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

  .nav-list li {
    width: 100%;
  }

  .nav-list a {
    padding: 14px 24px;
    border-radius: 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  }

  .nav-list a.is-current {
    border-radius: 0;
  }

  /* 首页 */
  .hero-section {
    grid-template-columns: 1fr;
    gap: 24px;
    padding: 30px 20px;
  }

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

  .genre-nav-section,
  .popular-rank-section,
  .featured-preview-section {
    padding: 30px 20px;
  }

  .genre-tags {
    gap: 8px;
  }

  .genre-tag {
    padding: 8px 14px;
    font-size: 0.875rem;
  }

  .updates-list {
    padding: 0 20px;
  }

  .update-item {
    grid-template-columns: 1fr auto;
    padding: 12px;
    gap: 8px;
  }

  .update-date {
    grid-column: 1 / -1;
    justify-self: start;
    font-size: 0.75rem;
  }

  .update-info h3 {
    font-size: 0.9375rem;
  }

  .update-status {
    font-size: 0.75rem;
    padding: 3px 8px;
  }

  .rank-item {
    grid-template-columns: 44px 1fr;
    gap: 12px;
  }

  .rank-number {
    width: 36px;
    height: 36px;
    font-size: 1rem;
  }

  .guide-cards,
  .preview-cards {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  /* 内页 */
  .inner-main {
    padding-top: 20px;
    padding-bottom: 40px;
  }

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

  .breadcrumb {
    font-size: 0.8125rem;
    gap: 6px;
  }

  /* 分类页 */
  .desc-grid {
    grid-template-columns: 1fr;
    gap: 12px;
  }

  .data-table th,
  .data-table td {
    padding: 10px 12px;
    font-size: 0.875rem;
  }

  /* 指南页 */
  .step-item {
    grid-template-columns: 40px 1fr;
    gap: 12px;
    padding: 16px;
  }

  .step-number {
    width: 36px;
    height: 36px;
    font-size: 1rem;
  }

  .tool-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .tool-card img {
    height: 160px;
  }

  /* 推荐页 */
  .rec-card,
  .manga-card {
    grid-template-columns: 1fr;
    gap: 16px;
    padding: 16px;
  }

  .rec-media,
  .manga-cover {
    width: 100%;
    height: 220px;
  }

  .rec-media img,
  .manga-cover img {
    object-fit: cover;
    width: 100%;
    height: 100%;
  }

  .reason-grid {
    grid-template-columns: 1fr;
    gap: 12px;
  }

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

  .related-list a {
    display: block;
    text-align: center;
  }

  /* 页脚 */
  .footer-inner {
    grid-template-columns: 1fr 1fr;
    gap: 24px;
    padding-top: 30px;
    padding-bottom: 20px;
  }

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

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

  /* 404 */
  .error-main {
    padding: 40px 20px;
  }

  .error-code {
    font-size: 3.5rem;
  }

  .error-actions {
    flex-direction: column;
    align-items: center;
  }

  .btn-back-home,
  .btn-browse-categories {
    width: 100%;
    max-width: 280px;
  }
}

/* 超小屏幕 390px 适配 */
@media (max-width: 390px) {
  .brand-name {
    font-size: 1.25rem;
  }

  .brand-slogan {
    font-size: 0.6875rem;
  }

  .hero-copy h1 {
    font-size: 1.375rem;
  }

  .hero-copy p {
    font-size: 0.875rem;
  }

  .genre-nav-section h2,
  .recent-updates-section h2,
  .popular-rank-section h2,
  .guide-entry-section h2,
  .featured-preview-section h2 {
    font-size: 1.25rem;
  }

  .page-title {
    font-size: 1.375rem;
  }

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

  .update-date {
    justify-self: start;
  }

  .update-status {
    justify-self: start;
  }

  .footer-inner {
    grid-template-columns: 1fr;
    gap: 20px;
  }

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

  .footer-nav {
    grid-column: 1;
  }

  .footer-copy {
    grid-column: 1;
  }
}

/* 平板适配 769px - 1024px */
@media (min-width: 769px) and (max-width: 1024px) {
  .header-inner,
  .footer-inner,
  .site-main {
    padding-left: 16px;
    padding-right: 16px;
  }

  .hero-section {
    gap: 24px;
    padding-left: 16px;
    padding-right: 16px;
  }

  .genre-nav-section,
  .popular-rank-section,
  .featured-preview-section {
    padding-left: 16px;
    padding-right: 16px;
  }

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

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

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