/* ==========================================================
   漫蛙网站 · 全站样式表
   视觉方向：自然生活风（浅绿 + 米白）
   ========================================================== */

/* ==========================================================
   1. Base — 基础变量、重置、全局字体与颜色
   ========================================================== */

:root {
  --color-primary: #4a7c59;
  --color-primary-dark: #3b6347;
  --color-primary-light: #e8f0e9;
  --color-bg: #f5f0e8;
  --color-text: #2c2c2c;
  --color-card: #ffffff;
  --color-accent: #d9c8a9;
  --color-muted: #6b6b6b;
  --color-border: #e2ddd3;

  --font-heading: "Source Han Sans SC", "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", sans-serif;
  --font-body: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;

  --container-width: 1200px;
  --header-height: 72px;
  --radius-sm: 4px;
  --radius-md: 8px;
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06);
  --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.08);

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

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

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

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

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

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

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

ul,
ol {
  list-style: none;
}

h1,
h2,
h3,
h4,
h5,
h6 {
  font-family: var(--font-heading);
  line-height: 1.4;
  color: var(--color-text);
}

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

:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

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

/* ==========================================================
   2. Layout — 全站骨架、容器、页头、页脚
   ========================================================== */

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

/* ----- 页头 ----- */

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

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

.brand-logo {
  font-family: var(--font-heading);
  font-size: 24px;
  font-weight: 700;
  color: var(--color-primary);
  letter-spacing: 0.5px;
  flex-shrink: 0;
}

.brand-logo:hover {
  color: var(--color-primary-dark);
}

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

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

.site-nav .nav-list a:hover {
  color: var(--color-primary);
  background-color: var(--color-primary-light);
}

.site-nav .nav-list a.is-current {
  color: var(--color-primary);
  background-color: var(--color-primary-light);
  font-weight: 600;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 6px;
  width: 44px;
  height: 44px;
  padding: 10px;
  border-radius: var(--radius-sm);
}

.nav-toggle-bar {
  display: block;
  width: 24px;
  height: 2px;
  background-color: var(--color-text);
  border-radius: 1px;
  transition: transform 0.2s ease, opacity 0.2s ease;
}

/* ----- 主内容 ----- */

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

/* 首页主内容 */
.home-main {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 24px;
}

/* 内页主内容 */
.inner-main {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 24px 64px;
}

/* ----- 面包屑 ----- */

.breadcrumb {
  padding: 16px 0 8px;
  font-size: 14px;
  color: var(--color-muted);
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 6px;
}

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

.breadcrumb a:hover {
  text-decoration: underline;
}

.breadcrumb-sep {
  color: var(--color-accent);
  margin: 0 2px;
}

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

/* ----- 页面标题区（内页统一） ----- */

.page-header {
  padding: 24px 0 32px;
}

.page-title {
  font-size: 32px;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 12px;
}

.page-description {
  font-size: 16px;
  color: var(--color-muted);
  max-width: 720px;
  line-height: 1.8;
}

/* ----- 页脚 ----- */

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

.footer-inner {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 48px 24px 24px;
  display: grid;
  grid-template-columns: 1.2fr 2fr;
  gap: 48px;
}

.footer-brand .footer-logo {
  font-family: var(--font-heading);
  font-size: 20px;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 8px;
}

.footer-desc {
  font-size: 14px;
  color: var(--color-muted);
  line-height: 1.7;
  max-width: 320px;
}

.footer-links-group {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.footer-col-title {
  font-size: 15px;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 12px;
}

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

.footer-links-col ul a {
  font-size: 14px;
  color: var(--color-muted);
}

.footer-links-col ul a:hover {
  color: var(--color-primary);
}

.footer-bottom {
  border-top: 1px solid var(--color-border);
  padding: 16px 24px;
  text-align: center;
}

.footer-bottom p {
  font-size: 13px;
  color: var(--color-muted);
  max-width: var(--container-width);
  margin: 0 auto;
}

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

/* ----- 区块标题 ----- */

.section-title {
  font-size: 26px;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 8px;
}

.section-intro {
  font-size: 15px;
  color: var(--color-muted);
  margin-bottom: 24px;
  max-width: 640px;
}

.section-desc {
  font-size: 15px;
  color: var(--color-muted);
  margin-bottom: 24px;
  max-width: 640px;
}

/* ----- 按钮 ----- */

.btn-primary,
.btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 28px;
  font-size: 15px;
  font-weight: 600;
  border-radius: var(--radius-md);
  transition: background-color 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease;
  min-height: 44px;
}

.btn-primary {
  background-color: var(--color-primary);
  color: #ffffff;
}

.btn-primary:hover {
  background-color: var(--color-primary-dark);
  color: #ffffff;
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

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

.btn-secondary:hover {
  background-color: var(--color-primary-light);
  color: var(--color-primary-dark);
  transform: translateY(-2px);
  box-shadow: var(--shadow-sm);
}

/* ----- 卡片链接 ----- */

.card-link {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 15px;
  font-weight: 600;
  color: var(--color-primary);
  min-height: 44px;
}

.card-link:hover {
  color: var(--color-primary-dark);
  text-decoration: underline;
}

/* ==========================================================
   4. Home — 首页专属模块
   ========================================================== */

/* ----- 首屏 Hero ----- */

.hero-section {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  align-items: center;
  gap: 48px;
  padding: 64px 0 56px;
}

.hero-copy {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 20px;
}

.hero-title {
  font-size: 40px;
  font-weight: 700;
  line-height: 1.3;
  color: var(--color-text);
}

.hero-slogan {
  font-size: 17px;
  color: var(--color-muted);
  line-height: 1.8;
  max-width: 480px;
}

.hero-actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  margin-top: 8px;
}

.hero-figure {
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  background-color: var(--color-card);
}

.hero-figure img {
  width: 100%;
  height: 360px;
  object-fit: cover;
}

.hero-figure figcaption {
  padding: 12px 16px;
  font-size: 13px;
  color: var(--color-muted);
  text-align: center;
  background-color: var(--color-card);
}

/* ----- 题材分类导航带 ----- */

.category-nav-section {
  padding: 48px 0;
}

.category-tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.category-tag-list a {
  display: inline-flex;
  align-items: center;
  padding: 10px 22px;
  font-size: 15px;
  font-weight: 500;
  color: var(--color-text);
  background-color: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: 999px;
  min-height: 44px;
  transition: background-color 0.2s ease, color 0.2s ease, border-color 0.2s ease;
}

.category-tag-list a:hover {
  background-color: var(--color-primary);
  border-color: var(--color-primary);
  color: #ffffff;
}

/* ----- 最近更新 ----- */

.recent-updates-section {
  padding: 48px 0;
}

.update-group {
  margin-bottom: 32px;
}

.update-date {
  font-size: 18px;
  font-weight: 600;
  color: var(--color-primary);
  margin-bottom: 16px;
  padding-bottom: 8px;
  border-bottom: 2px solid var(--color-primary-light);
}

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

.update-item {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 12px;
  background-color: var(--color-card);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  transition: box-shadow 0.2s ease, transform 0.2s ease;
}

.update-item:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.update-item img {
  width: 72px;
  height: 96px;
  object-fit: cover;
  border-radius: var(--radius-sm);
  flex-shrink: 0;
}

.update-info {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.update-title {
  font-size: 15px;
  font-weight: 600;
  color: var(--color-text);
  line-height: 1.5;
}

.update-meta {
  font-size: 13px;
  color: var(--color-muted);
}

/* ----- 人气榜单 ----- */

.ranking-section {
  padding: 48px 0;
}

.ranking-list {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 16px;
}

.ranking-item {
  background-color: var(--color-card);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: box-shadow 0.2s ease, transform 0.2s ease;
}

.ranking-item:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

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

.ranking-content {
  padding: 16px;
}

.ranking-title {
  font-size: 15px;
  font-weight: 600;
  margin-bottom: 6px;
  line-height: 1.5;
}

.ranking-reason {
  font-size: 13px;
  color: var(--color-muted);
  line-height: 1.6;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* ----- 指南入口 ----- */

.guide-entry-section {
  padding: 48px 0;
}

.guide-cards {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.guide-card {
  background-color: var(--color-card);
  border-radius: var(--radius-md);
  padding: 28px;
  box-shadow: var(--shadow-sm);
  transition: box-shadow 0.2s ease, transform 0.2s ease;
}

.guide-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.guide-card-title {
  font-size: 20px;
  font-weight: 600;
  margin-bottom: 10px;
}

.guide-card p {
  font-size: 14px;
  color: var(--color-muted);
  margin-bottom: 16px;
  line-height: 1.7;
}

/* ----- 长尾专题预告 ----- */

.featured-topics-section {
  padding: 48px 0 64px;
}

.topic-cards {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.topic-card {
  display: grid;
  grid-template-columns: 160px 1fr;
  gap: 20px;
  background-color: var(--color-card);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: box-shadow 0.2s ease, transform 0.2s ease;
}

.topic-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.topic-card img {
  width: 100%;
  height: 100%;
  min-height: 180px;
  object-fit: cover;
}

.topic-content {
  padding: 20px 20px 20px 0;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 10px;
}

.topic-title {
  font-size: 18px;
  font-weight: 600;
  line-height: 1.5;
}

.topic-content p {
  font-size: 14px;
  color: var(--color-muted);
  line-height: 1.7;
}

/* ==========================================================
   5. Inner Pages — 内页通用模块
   ========================================================== */

/* 内页 body 外框（保证左侧栏布局正常） */
.site-inner {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* ==========================================================
   6. Category 页 — 题材分类
   ========================================================== */

.layout-shell {
  display: grid;
  grid-template-columns: 260px 1fr;
  gap: 40px;
  align-items: start;
}

.sidebar-left {
  display: contents;
}

.sidebar-left .category-index {
  grid-column: 1;
  position: sticky;
  top: calc(var(--header-height) + 24px);
  background-color: var(--color-card);
  border-radius: var(--radius-md);
  padding: 24px;
  box-shadow: var(--shadow-sm);
}

.sidebar-left .category-details {
  grid-column: 2;
  min-width: 0;
}

.category-index .index-list {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.category-index .index-list a {
  display: block;
  padding: 10px 16px;
  font-size: 15px;
  color: var(--color-text);
  border-radius: var(--radius-sm);
  transition: background-color 0.2s ease, color 0.2s ease;
}

.category-index .index-list a:hover {
  background-color: var(--color-primary-light);
  color: var(--color-primary);
}

/* 分类详情 */

.category-list .genre-item {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 24px;
  background-color: var(--color-card);
  border-radius: var(--radius-md);
  padding: 28px;
  margin-bottom: 24px;
  box-shadow: var(--shadow-sm);
}

.genre-text h3 {
  font-size: 20px;
  font-weight: 600;
  margin-bottom: 12px;
  color: var(--color-primary);
}

.genre-text p {
  font-size: 14px;
  color: var(--color-muted);
  line-height: 1.7;
  margin-bottom: 8px;
}

.genre-media img {
  width: 100%;
  height: 200px;
  object-fit: cover;
  border-radius: var(--radius-sm);
}

/* 题材速览 */

.genre-brief {
  margin-top: 40px;
  background-color: var(--color-card);
  border-radius: var(--radius-md);
  padding: 28px;
  box-shadow: var(--shadow-sm);
}

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

.brief-list li {
  font-size: 14px;
  color: var(--color-text);
  padding: 8px 12px;
  background-color: var(--color-bg);
  border-radius: var(--radius-sm);
}

.brief-list strong {
  color: var(--color-primary);
  margin-right: 4px;
}

.brief-note {
  font-size: 14px;
  color: var(--color-muted);
  line-height: 1.7;
}

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

/* ==========================================================
   7. Guide 页 — 阅读指南
   ========================================================== */

.guide-content {
  display: flex;
  flex-direction: column;
  gap: 40px;
}

.guide-step-block {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 32px;
  align-items: center;
  background-color: var(--color-card);
  border-radius: var(--radius-md);
  padding: 32px;
  box-shadow: var(--shadow-sm);
}

.step-text h2 {
  font-size: 22px;
  font-weight: 600;
  color: var(--color-primary);
  margin-bottom: 12px;
}

.step-text p {
  font-size: 15px;
  color: var(--color-muted);
  line-height: 1.8;
  margin-bottom: 10px;
}

.step-figure img {
  width: 100%;
  height: 220px;
  object-fit: cover;
  border-radius: var(--radius-sm);
}

.step-figure figcaption {
  font-size: 13px;
  color: var(--color-muted);
  text-align: center;
  margin-top: 8px;
}

.guide-tips-note {
  background-color: var(--color-primary-light);
  border-radius: var(--radius-md);
  padding: 28px 32px;
  border-left: 4px solid var(--color-primary);
}

.guide-tips-note h3 {
  font-size: 18px;
  font-weight: 600;
  color: var(--color-primary-dark);
  margin-bottom: 10px;
}

.guide-tips-note p {
  font-size: 14px;
  color: var(--color-text);
  line-height: 1.8;
}

/* ==========================================================
   8. Tips 页 — 追更技巧
   ========================================================== */

.tips-overview {
  background-color: var(--color-card);
  border-radius: var(--radius-md);
  padding: 28px 32px;
  margin-bottom: 32px;
  box-shadow: var(--shadow-sm);
}

.tips-overview p {
  font-size: 15px;
  color: var(--color-muted);
  line-height: 1.8;
  margin-bottom: 10px;
}

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

.tips-content {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 32px;
  align-items: center;
  background-color: var(--color-card);
  border-radius: var(--radius-md);
  padding: 28px;
  box-shadow: var(--shadow-sm);
}

.tips-content-reverse {
  grid-template-columns: 0.8fr 1.2fr;
}

.tips-content-reverse .tips-media {
  order: -1;
}

.tips-text p {
  font-size: 15px;
  color: var(--color-muted);
  line-height: 1.8;
  margin-bottom: 10px;
}

.tips-media img {
  width: 100%;
  height: 200px;
  object-fit: cover;
  border-radius: var(--radius-sm);
}

.tips-media figcaption {
  font-size: 13px;
  color: var(--color-muted);
  text-align: center;
  margin-top: 8px;
}

/* FAQ */

.tips-faq {
  margin-top: 48px;
  background-color: var(--color-card);
  border-radius: var(--radius-md);
  padding: 28px 32px;
  box-shadow: var(--shadow-sm);
}

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

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

.faq-item summary {
  padding: 16px 20px;
  font-size: 15px;
  font-weight: 600;
  color: var(--color-text);
  cursor: pointer;
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
  min-height: 48px;
}

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

.faq-item summary::after {
  content: "+";
  font-size: 20px;
  color: var(--color-primary);
  flex-shrink: 0;
  margin-left: 12px;
}

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

.faq-item p {
  padding: 0 20px 16px;
  font-size: 14px;
  color: var(--color-muted);
  line-height: 1.8;
}

/* ==========================================================
   9. Romance 页 — 恋爱漫画推荐
   ========================================================== */

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

.recommend-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.comic-card {
  background-color: var(--color-card);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: box-shadow 0.2s ease, transform 0.2s ease;
}

.comic-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.comic-card .card-media img {
  width: 100%;
  height: 220px;
  object-fit: cover;
}

.comic-card .card-content {
  padding: 20px;
}

.comic-card .card-title {
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 10px;
}

.comic-card .card-reason {
  font-size: 14px;
  color: var(--color-muted);
  line-height: 1.7;
  margin-bottom: 8px;
}

.comic-card .card-reason strong {
  color: var(--color-primary);
}

.comic-card .card-audience {
  font-size: 13px;
  color: var(--color-muted);
  line-height: 1.6;
}

.comic-card .card-audience strong {
  color: var(--color-text);
}

/* 阅读建议 */

.advice-section {
  background-color: var(--color-card);
  border-radius: var(--radius-md);
  padding: 32px;
  box-shadow: var(--shadow-sm);
}

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

.advice-item {
  background-color: var(--color-bg);
  border-radius: var(--radius-sm);
  padding: 20px;
}

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

.advice-item p {
  font-size: 14px;
  color: var(--color-muted);
  line-height: 1.7;
  margin-bottom: 6px;
}

.related-links {
  border-top: 1px solid var(--color-border);
  padding-top: 20px;
  font-size: 14px;
  color: var(--color-muted);
  line-height: 1.8;
}

.related-links a {
  font-weight: 600;
  margin: 0 4px;
}

/* ==========================================================
   10. Action 页 — 热血漫画推荐
   ========================================================== */

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

.recommendation-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.manga-card {
  background-color: var(--color-card);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: box-shadow 0.2s ease, transform 0.2s ease;
}

.manga-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.manga-card .card-media img {
  width: 100%;
  height: 220px;
  object-fit: cover;
}

.manga-card .card-content {
  padding: 20px;
}

.manga-card .card-content h3 {
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 10px;
}

.manga-card .card-reason {
  font-size: 14px;
  color: var(--color-muted);
  line-height: 1.7;
  margin-bottom: 10px;
}

.manga-card .card-tags {
  font-size: 13px;
  color: var(--color-primary);
  font-weight: 500;
}

/* 推荐理由分解 */

.reason-breakdown {
  margin-bottom: 48px;
}

.reason-columns {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.reason-item {
  background-color: var(--color-card);
  border-radius: var(--radius-md);
  padding: 24px;
  box-shadow: var(--shadow-sm);
}

.reason-item h3 {
  font-size: 17px;
  font-weight: 600;
  color: var(--color-primary);
  margin-bottom: 10px;
}

.reason-item p {
  font-size: 14px;
  color: var(--color-muted);
  line-height: 1.7;
}

/* 阅读建议 */

.reading-advice {
  background-color: var(--color-card);
  border-radius: var(--radius-md);
  padding: 32px;
  box-shadow: var(--shadow-sm);
}

.advice-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-bottom: 20px;
}

.advice-list li {
  font-size: 15px;
  color: var(--color-text);
  line-height: 1.7;
  padding-left: 20px;
  position: relative;
}

.advice-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 12px;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background-color: var(--color-primary);
}

.reading-advice > p {
  font-size: 14px;
  color: var(--color-muted);
  line-height: 1.8;
}

.reading-advice > p a {
  font-weight: 600;
  margin: 0 4px;
}

/* ==========================================================
   11. 404 页
   ========================================================== */

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

.error-panel {
  text-align: center;
  max-width: 480px;
  background-color: var(--color-card);
  border-radius: var(--radius-md);
  padding: 48px 40px;
  box-shadow: var(--shadow-sm);
}

.error-code {
  font-size: 64px;
  font-weight: 700;
  color: var(--color-primary);
  line-height: 1.2;
  margin-bottom: 8px;
}

.error-title {
  font-size: 24px;
  font-weight: 600;
  margin-bottom: 12px;
}

.error-desc {
  font-size: 15px;
  color: var(--color-muted);
  margin-bottom: 24px;
  line-height: 1.8;
}

.error-action {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 28px;
  font-size: 15px;
  font-weight: 600;
  color: #ffffff;
  background-color: var(--color-primary);
  border-radius: var(--radius-md);
  min-height: 44px;
  transition: background-color 0.2s ease;
}

.error-action:hover {
  background-color: var(--color-primary-dark);
  color: #ffffff;
}

/* ==========================================================
   12. Responsive — 响应式
   ========================================================== */

@media (max-width: 1024px) {
  .hero-title {
    font-size: 34px;
  }

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

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

  .topic-card {
    grid-template-columns: 140px 1fr;
  }
}

@media (max-width: 768px) {
  /* 页头 */
  .header-inner {
    padding: 0 16px;
  }

  .nav-toggle {
    display: flex;
  }

  .site-nav {
    position: absolute;
    top: var(--header-height);
    left: 0;
    right: 0;
    background-color: var(--color-card);
    border-bottom: 1px solid var(--color-border);
    box-shadow: var(--shadow-md);
  }

  .site-nav .nav-list {
    display: none;
    flex-direction: column;
    align-items: stretch;
    padding: 16px;
    gap: 4px;
  }

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

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

  /* 首页 */
  .home-main {
    padding: 0 16px;
  }

  .hero-section {
    grid-template-columns: 1fr;
    gap: 24px;
    padding: 40px 0 32px;
  }

  .hero-title {
    font-size: 30px;
  }

  .hero-figure img {
    height: 240px;
  }

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

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

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

  .topic-card img {
    height: 180px;
  }

  .topic-content {
    padding: 0 20px 20px;
  }

  /* 内页 */
  .inner-main {
    padding: 0 16px 40px;
  }

  .page-header {
    padding: 16px 0 24px;
  }

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

  /* 分类页 */
  .layout-shell {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  .sidebar-left .category-index {
    position: static;
    grid-column: 1;
  }

  .sidebar-left .category-details {
    grid-column: 1;
  }

  .category-index .index-list {
    flex-direction: row;
    flex-wrap: wrap;
    gap: 8px;
  }

  .category-index .index-list a {
    padding: 8px 16px;
    font-size: 14px;
  }

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

  .genre-media img {
    height: 180px;
  }

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

  /* 指南页 */
  .guide-step-block {
    grid-template-columns: 1fr;
    gap: 20px;
  }

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

  /* 追更页 */
  .tips-content,
  .tips-content-reverse {
    grid-template-columns: 1fr;
  }

  .tips-content-reverse .tips-media {
    order: 0;
  }

  .tips-media img {
    height: 180px;
  }

  /* 推荐页 */
  .recommend-grid,
  .recommendation-grid {
    grid-template-columns: 1fr;
  }

  .advice-grid,
  .reason-columns {
    grid-template-columns: 1fr;
  }

  /* 页脚 */
  .footer-inner {
    grid-template-columns: 1fr;
    gap: 32px;
    padding: 32px 16px 16px;
  }

  .footer-links-group {
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
  }

  .footer-bottom {
    padding: 12px 16px;
  }
}

@media (max-width: 480px) {
  .hero-actions {
    flex-direction: column;
    width: 100%;
  }

  .btn-primary,
  .btn-secondary {
    width: 100%;
  }

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

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

  .category-tag-list a {
    padding: 8px 16px;
    font-size: 14px;
  }

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

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

/* ==========================================================
   13. Motion — 轻量动效增强（不影响初始可见性）
   ========================================================== */

@media (prefers-reduced-motion: no-preference) {
  .update-item,
  .ranking-item,
  .guide-card,
  .topic-card,
  .comic-card,
  .manga-card,
  .genre-item,
  .guide-step-block {
    transition: box-shadow 0.2s ease, transform 0.2s ease;
  }
}