/* ============================================================
   樱花漫画 - 整站样式表
   版本: 1.0
   说明: 覆盖首页、全部内页、404页的布局与组件样式
   ============================================================ */

/* ============================================================
   Base - 基础变量、重置、排版
   ============================================================ */
:root {
  --page-bg: #f6f7f9;
  --card-bg: #ffffff;
  --text-primary: #1f2933;
  --text-secondary: #52606d;
  --accent: #4f6ef7;
  --accent-weak: #eef1fe;
  --divider: #e4e7eb;
  --status-live: #10b981;
  --status-warn: #f59e0b;
  --status-end: #8b95a5;
  --radius-sm: 4px;
  --radius-md: 8px;
  --container-w: 1180px;
  --gutter: 24px;
  --font-stack: -apple-system, BlinkMacSystemFont, "PingFang SC",
    "Microsoft YaHei", "Noto Sans CJK SC", "Segoe UI", sans-serif;
  --shadow-card: 0 1px 3px rgba(31, 41, 51, 0.06);
  --shadow-hover: 0 6px 18px rgba(31, 41, 51, 0.1);
}

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

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

body {
  font-family: var(--font-stack);
  font-size: 15px;
  line-height: 1.7;
  color: var(--text-primary);
  background-color: var(--page-bg);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

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

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

a:hover {
  color: #3b5de7;
}

ul,
ol {
  list-style: none;
}

h1,
h2,
h3,
h4 {
  line-height: 1.3;
  font-weight: 600;
  color: var(--text-primary);
}

h1 {
  font-size: clamp(28px, 4vw, 40px);
  letter-spacing: 0.01em;
}

h2 {
  font-size: 22px;
}

h3 {
  font-size: 16px;
}

p {
  margin-bottom: 0.8em;
}

/* 屏幕阅读器友好隐藏 */
.visually-hidden {
  position: absolute !important;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* 通用容器 */
.site-main {
  flex: 1 0 auto;
}

.inner-main {
  width: 100%;
  max-width: var(--container-w);
  margin: 0 auto;
  padding: 28px var(--gutter) 56px;
}

.home-main {
  width: 100%;
  max-width: var(--container-w);
  margin: 0 auto;
  padding: 0 var(--gutter) 56px;
}

/* 区块标题通用 */
.section-title {
  font-size: 22px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 20px;
}

/* ============================================================
   Layout - 页头 / 导航 / 页脚 / 面包屑 / 页面标题区
   ============================================================ */

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

.header-inner {
  max-width: var(--container-w);
  margin: 0 auto;
  padding: 0 var(--gutter);
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand-link {
  display: inline-flex;
  align-items: center;
  flex-shrink: 0;
  font-size: 20px;
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: 0.02em;
}

.brand-link:hover {
  color: var(--accent);
}

.brand-name {
  white-space: nowrap;
}

/* ---- 主导航 ---- */
.site-nav {
  display: flex;
  align-items: center;
}

.nav-list {
  display: flex;
  align-items: center;
  gap: 28px;
}

.nav-list li {
  position: relative;
}

.nav-list a {
  display: inline-block;
  font-size: 15px;
  font-weight: 500;
  color: var(--text-secondary);
  padding: 6px 2px;
  line-height: 1.4;
  position: relative;
}

.nav-list a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 100%;
  height: 2px;
  background-color: var(--accent);
  border-radius: 2px;
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform 0.25s ease;
}

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

.nav-list a:hover::after,
.nav-list a.is-current::after {
  transform: scaleX(1);
}

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

/* 汉堡按钮，桌面隐藏 */
.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  width: 44px;
  height: 44px;
  padding: 10px;
  border-radius: var(--radius-sm);
  align-items: center;
  justify-content: center;
}

.nav-toggle-icon {
  position: relative;
  display: block;
  width: 22px;
  height: 2px;
  background-color: var(--text-primary);
  border-radius: 2px;
  transition: background-color 0.2s ease;
}

.nav-toggle-icon::before,
.nav-toggle-icon::after {
  content: "";
  position: absolute;
  left: 0;
  width: 100%;
  height: 2px;
  background-color: var(--text-primary);
  border-radius: 2px;
  transition: transform 0.25s ease, top 0.25s ease;
}

.nav-toggle-icon::before {
  top: -7px;
}

.nav-toggle-icon::after {
  top: 7px;
}

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

.footer-inner {
  max-width: var(--container-w);
  margin: 0 auto;
  padding: 44px var(--gutter) 32px;
  display: grid;
  grid-template-columns: repeat(3, 1fr) 1.4fr;
  gap: 36px;
}

.footer-heading {
  font-size: 15px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 14px;
}

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

.footer-links a {
  font-size: 14px;
  color: var(--text-secondary);
}

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

.footer-about p {
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.7;
}

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

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

/* ---- 面包屑 ---- */
.breadcrumb {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  font-size: 13px;
  color: var(--text-secondary);
  margin-bottom: 20px;
}

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

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

.breadcrumb-sep {
  color: var(--text-secondary);
  opacity: 0.6;
}

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

/* ---- 页面标题区（内页统一） ---- */
.page-header {
  margin-bottom: 32px;
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 32px;
}

.page-header-text {
  flex: 1;
  min-width: 0;
}

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

.page-description {
  font-size: 15px;
  color: var(--text-secondary);
  max-width: 640px;
  margin: 0;
}

.page-header-media {
  flex-shrink: 0;
  width: 220px;
  border-radius: var(--radius-md);
  overflow: hidden;
  background-color: var(--accent-weak);
}

.page-header-media img {
  width: 100%;
  height: 140px;
  object-fit: cover;
}

.page-heading-text {
  flex: 1;
  min-width: 0;
}

.page-heading-media {
  flex-shrink: 0;
  width: 220px;
  border-radius: var(--radius-md);
  overflow: hidden;
  background-color: var(--accent-weak);
}

.page-heading-media img {
  width: 100%;
  height: 140px;
  object-fit: cover;
}

/* ============================================================
   Components - 通用组件
   ============================================================ */

/* ---- 封面图容器 ---- */
.content-media {
  border-radius: var(--radius-md);
  overflow: hidden;
  background-color: var(--accent-weak);
}

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

.content-media figcaption {
  padding: 8px 12px;
  font-size: 12px;
  color: var(--text-secondary);
  background-color: var(--card-bg);
  border-top: 1px solid var(--divider);
}

/* ---- 相关链接导航（通用） ---- */
.related-links {
  margin-top: 40px;
  padding-top: 24px;
  border-top: 1px solid var(--divider);
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
}

.related-links-label {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-primary);
  margin-right: 4px;
}

.related-links-item {
  display: inline-block;
  font-size: 14px;
  color: var(--accent);
  padding: 6px 14px;
  background-color: var(--accent-weak);
  border-radius: 999px;
  transition: background-color 0.2s ease, color 0.2s ease;
}

.related-links-item:hover {
  background-color: var(--accent);
  color: #fff;
}

/* ---- 站内文本链接 ---- */
.text-link {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 14px;
  font-weight: 500;
  color: var(--accent);
}

.text-link::after {
  content: "→";
  transition: transform 0.2s ease;
}

.text-link:hover::after {
  transform: translateX(3px);
}

/* ---- 通用区块间距 ---- */
.section-block {
  margin-bottom: 40px;
}

/* ============================================================
   Pages - 首页 (index.html)
   ============================================================ */

/* ---- Hero 首屏 ---- */
.hero-intro {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 32px;
  padding: 48px 0 40px;
  align-items: center;
}

.hero-copy {
  min-width: 0;
}

.hero-title {
  font-size: clamp(28px, 4vw, 40px);
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 12px;
  line-height: 1.25;
}

.hero-lead {
  font-size: 16px;
  color: var(--text-secondary);
  margin-bottom: 24px;
  max-width: 480px;
}

.hero-timeline {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.timeline-entry {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 12px 16px;
  background-color: var(--card-bg);
  border: 1px solid var(--divider);
  border-radius: var(--radius-md);
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.timeline-entry:hover {
  border-color: var(--accent);
  box-shadow: var(--shadow-hover);
}

.timeline-label {
  flex-shrink: 0;
  font-size: 13px;
  font-weight: 600;
  color: var(--accent);
  min-width: 64px;
}

.timeline-desc {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.5;
}

.content-media-primary {
  width: 100%;
  aspect-ratio: 4 / 3;
}

/* ---- 主推荐区 ---- */
.main-recommend {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 28px;
  margin-bottom: 48px;
}

.editor-feature {
  min-width: 0;
}

.feature-card {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0;
  background-color: var(--card-bg);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-card);
  transition: box-shadow 0.25s ease;
}

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

.feature-cover {
  width: 100%;
  height: 100%;
  min-height: 220px;
  object-fit: cover;
}

.feature-content {
  padding: 24px;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  justify-content: center;
}

.genre-tag {
  display: inline-block;
  font-size: 12px;
  font-weight: 600;
  color: var(--accent);
  background-color: var(--accent-weak);
  padding: 4px 10px;
  border-radius: 999px;
  margin-bottom: 12px;
}

.feature-heading {
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 10px;
  line-height: 1.4;
}

.feature-excerpt {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 16px;
}

/* ---- 榜单摘要 ---- */
.ranking-summary {
  background-color: var(--card-bg);
  border-radius: var(--radius-md);
  padding: 24px;
  box-shadow: var(--shadow-card);
  min-width: 0;
}

.ranking-summary .section-title {
  margin-bottom: 16px;
}

.ranking-list {
  display: flex;
  flex-direction: column;
}

.ranking-list li {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 0;
  border-bottom: 1px solid var(--divider);
}

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

.rank-num {
  flex-shrink: 0;
  width: 28px;
  height: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 13px;
  font-weight: 700;
  color: var(--text-secondary);
  background-color: var(--page-bg);
  border-radius: 50%;
}

.ranking-list li:nth-child(1) .rank-num {
  background-color: var(--accent);
  color: #fff;
}

.ranking-list li:nth-child(2) .rank-num {
  background-color: var(--accent-weak);
  color: var(--accent);
}

.rank-name {
  flex: 1;
  font-size: 14px;
  font-weight: 500;
  color: var(--text-primary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.rank-trend {
  flex-shrink: 0;
  font-size: 12px;
  color: var(--status-live);
}

.ranking-footnote {
  margin-top: 12px;
  font-size: 12px;
  color: var(--text-secondary);
}

/* ---- 更新记录时间线 ---- */
.update-timeline {
  margin-bottom: 48px;
}

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

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

.timeline-item:hover {
  border-color: var(--accent);
  box-shadow: var(--shadow-hover);
}

.time-badge {
  display: inline-block;
  font-size: 12px;
  font-weight: 600;
  color: var(--status-live);
  background-color: rgba(16, 185, 129, 0.1);
  padding: 4px 10px;
  border-radius: 999px;
  margin-bottom: 10px;
}

.time-text {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 10px;
}

.timeline-item a {
  font-size: 13px;
  font-weight: 500;
}

/* ---- 题材过滤 ---- */
.genre-filter {
  margin-bottom: 32px;
}

.filter-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.filter-tag {
  display: inline-block;
  font-size: 14px;
  font-weight: 500;
  color: var(--text-secondary);
  padding: 8px 18px;
  background-color: var(--card-bg);
  border: 1px solid var(--divider);
  border-radius: 999px;
  transition: all 0.2s ease;
}

.filter-tag:hover {
  color: var(--accent);
  border-color: var(--accent);
  background-color: var(--accent-weak);
}

/* ---- 封面网格 ---- */
.cover-grid {
  margin-bottom: 40px;
}

.grid-covers {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.cover-card {
  display: block;
  background-color: var(--card-bg);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-card);
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}

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

.cover-card img {
  width: 100%;
  aspect-ratio: 3 / 4;
  object-fit: cover;
}

.cover-genre {
  display: inline-block;
  font-size: 12px;
  font-weight: 600;
  color: var(--accent);
  padding: 8px 12px 0;
}

.cover-desc {
  font-size: 13px;
  color: var(--text-secondary);
  padding: 4px 12px 12px;
  line-height: 1.5;
  margin: 0;
}

.grid-more {
  text-align: center;
  margin-top: 24px;
}

.grid-more a {
  display: inline-block;
  font-size: 14px;
  font-weight: 500;
  color: var(--accent);
  padding: 8px 20px;
  border: 1px solid var(--accent);
  border-radius: 999px;
  transition: all 0.2s ease;
}

.grid-more a:hover {
  background-color: var(--accent);
  color: #fff;
}

/* ---- 继续浏览 ---- */
.browse-more {
  margin-bottom: 48px;
}

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

.browse-link {
  display: block;
  background-color: var(--card-bg);
  border: 1px solid var(--divider);
  border-radius: var(--radius-md);
  padding: 24px;
  text-align: center;
  font-size: 16px;
  font-weight: 600;
  color: var(--text-primary);
  transition: all 0.2s ease;
}

.browse-link:hover {
  border-color: var(--accent);
  color: var(--accent);
  box-shadow: var(--shadow-hover);
}

/* ---- 阅读规则三步 ---- */
.guide-steps {
  margin-bottom: 48px;
  background-color: var(--card-bg);
  border-radius: var(--radius-md);
  padding: 32px;
  box-shadow: var(--shadow-card);
}

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

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

.step-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  font-size: 15px;
  font-weight: 700;
  color: var(--accent);
  background-color: var(--accent-weak);
  border-radius: 50%;
  margin-bottom: 12px;
}

.step-title {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 8px;
}

.step-desc {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.6;
  margin: 0;
}

.guide-link {
  display: inline-block;
  font-size: 14px;
  font-weight: 500;
  color: var(--accent);
  padding: 8px 20px;
  border: 1px solid var(--accent);
  border-radius: 999px;
  transition: all 0.2s ease;
}

.guide-link:hover {
  background-color: var(--accent);
  color: #fff;
}

/* ============================================================
   Pages - 近期推荐 (yhmh/featured.html)
   ============================================================ */

.feature-timeline {
  margin-bottom: 40px;
}

.timeline-list {
  position: relative;
  padding-left: 24px;
}

.timeline-list::before {
  content: "";
  position: absolute;
  left: 6px;
  top: 4px;
  bottom: 4px;
  width: 2px;
  background-color: var(--divider);
}

.timeline-item {
  position: relative;
  margin-bottom: 28px;
}

.timeline-marker {
  position: absolute;
  left: -24px;
  top: 20px;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background-color: var(--accent);
  border: 3px solid var(--card-bg);
  box-shadow: 0 0 0 2px var(--accent);
}

.timeline-content {
  background-color: var(--card-bg);
  border-radius: var(--radius-md);
  padding: 20px;
  box-shadow: var(--shadow-card);
  border: 1px solid var(--divider);
}

.topic-card {
  display: grid;
  grid-template-columns: 180px 1fr;
  gap: 20px;
  align-items: center;
}

.topic-cover {
  width: 100%;
  aspect-ratio: 3 / 4;
  object-fit: cover;
  border-radius: var(--radius-sm);
}

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

/* 题材标签（近期推荐内页） */
.topic-tag {
  display: inline-block;
  font-size: 12px;
  font-weight: 600;
  color: var(--accent);
  background-color: var(--accent-weak);
  padding: 4px 10px;
  border-radius: 999px;
  margin-bottom: 8px;
}

.topic-title {
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 8px;
}

.topic-desc {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.6;
  margin: 0;
}

/* 热门题材标签 */
.topic-tags {
  margin-bottom: 40px;
}

.tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.tag-list a {
  display: inline-block;
  font-size: 14px;
  font-weight: 500;
  color: var(--text-secondary);
  padding: 8px 18px;
  background-color: var(--card-bg);
  border: 1px solid var(--divider);
  border-radius: 999px;
  transition: all 0.2s ease;
}

.tag-list a:hover {
  color: var(--accent);
  border-color: var(--accent);
  background-color: var(--accent-weak);
}

/* ============================================================
   Pages - 更新记录 (yhmh/updates.html)
   ============================================================ */

.update-log {
  margin-bottom: 48px;
}

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

.log-date {
  font-size: 16px;
  font-weight: 600;
  color: var(--text-primary);
  padding-bottom: 8px;
  border-bottom: 2px solid var(--accent);
  display: inline-block;
  margin-bottom: 16px;
}

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

.log-item {
  display: grid;
  grid-template-columns: 72px 1fr;
  gap: 16px;
  align-items: baseline;
  background-color: var(--card-bg);
  border: 1px solid var(--divider);
  border-radius: var(--radius-md);
  padding: 16px 20px;
  transition: border-color 0.2s ease;
}

.log-item:hover {
  border-color: var(--accent);
}

.log-type {
  font-size: 12px;
  font-weight: 600;
  color: var(--status-live);
  background-color: rgba(16, 185, 129, 0.1);
  padding: 3px 10px;
  border-radius: 999px;
  justify-self: start;
}

.log-item a {
  font-size: 15px;
  font-weight: 500;
  color: var(--text-primary);
}

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

.log-desc {
  grid-column: 2;
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.5;
  margin: -8px 0 0;
}

/* 状态术语条 */
.status-strip {
  background-color: var(--card-bg);
  border-radius: var(--radius-md);
  padding: 28px;
  margin-bottom: 40px;
  box-shadow: var(--shadow-card);
}

.status-strip > p {
  font-size: 14px;
  color: var(--text-secondary);
  margin-bottom: 20px;
}

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

.status-item {
  padding: 16px;
  background-color: var(--page-bg);
  border-radius: var(--radius-sm);
  border: 1px solid var(--divider);
}

.status-item h3 {
  font-size: 14px;
  font-weight: 600;
  margin-bottom: 6px;
  color: var(--accent);
}

.status-item p {
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.5;
  margin: 0;
}

/* ============================================================
   Pages - 题材归档 (yhmh/genres.html)
   ============================================================ */

/* 题材网格 */
.genre-grid-section {
  margin-bottom: 48px;
}

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

.genre-card {
  background-color: var(--card-bg);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-card);
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}

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

.genre-card-media {
  overflow: hidden;
}

.genre-card-media img {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
}

.genre-card-body {
  padding: 20px;
}

.genre-card-title {
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 8px;
}

.genre-card-desc {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 12px;
}

.genre-card-link {
  font-size: 13px;
  font-weight: 500;
  color: var(--accent);
}

/* 题材分组 */
.genre-groups-section {
  margin-bottom: 48px;
}

.section-desc {
  font-size: 14px;
  color: var(--text-secondary);
  margin-bottom: 20px;
}

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

.genre-group {
  background-color: var(--card-bg);
  border-radius: var(--radius-md);
  padding: 24px;
  border: 1px solid var(--divider);
}

.genre-group-title {
  font-size: 16px;
  font-weight: 600;
  color: var(--accent);
  padding-bottom: 10px;
  border-bottom: 1px solid var(--divider);
  margin-bottom: 16px;
}

.genre-group-list li {
  padding: 8px 0;
  font-size: 14px;
  color: var(--text-secondary);
  border-bottom: 1px dashed var(--divider);
}

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

/* 引导入口 */
.guide-entry-section {
  margin-bottom: 40px;
}

.guide-entry-cards {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}

.guide-entry-card {
  display: block;
  background-color: var(--card-bg);
  border: 1px solid var(--divider);
  border-radius: var(--radius-md);
  padding: 24px;
  transition: all 0.2s ease;
}

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

.guide-entry-card-title {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 6px;
  color: var(--text-primary);
}

.guide-entry-card:hover .guide-entry-card-title {
  color: var(--accent);
}

.guide-entry-card-desc {
  font-size: 14px;
  color: var(--text-secondary);
  margin: 0;
}

/* ============================================================
   Pages - 新作预告 (yhmh/upcoming.html)
   ============================================================ */

/* 计划介绍 */
.plan-intro {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 32px;
  align-items: center;
  margin-bottom: 40px;
  background-color: var(--card-bg);
  border-radius: var(--radius-md);
  padding: 32px;
  box-shadow: var(--shadow-card);
}

.plan-intro-text h2 {
  font-size: 22px;
  margin-bottom: 12px;
}

.plan-intro-text p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 10px;
}

.plan-intro-media {
  border-radius: var(--radius-md);
  overflow: hidden;
  background-color: var(--accent-weak);
}

.plan-intro-media img {
  width: 100%;
  aspect-ratio: 16 / 10;
  object-fit: cover;
}

.plan-intro-media figcaption {
  padding: 8px 12px;
  font-size: 12px;
  color: var(--text-secondary);
  background-color: var(--card-bg);
  border-top: 1px solid var(--divider);
}

/* 计划三列 */
.plan-columns {
  margin-bottom: 40px;
}

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

.plan-col {
  background-color: var(--card-bg);
  border-radius: var(--radius-md);
  padding: 24px;
  border: 1px solid var(--divider);
  box-shadow: var(--shadow-card);
}

.plan-col h3 {
  font-size: 16px;
  font-weight: 600;
  color: var(--accent);
  padding-bottom: 10px;
  border-bottom: 2px solid var(--accent-weak);
  margin-bottom: 16px;
}

.plan-list li {
  position: relative;
  padding: 8px 0 8px 20px;
  font-size: 14px;
  color: var(--text-secondary);
  border-bottom: 1px dashed var(--divider);
}

.plan-list li::before {
  content: "";
  position: absolute;
  left: 4px;
  top: 16px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background-color: var(--accent);
}

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

.plan-col-note {
  margin-top: 12px;
  font-size: 12px;
  color: var(--text-secondary);
}

/* 边界说明 */
.plan-note {
  background-color: var(--accent-weak);
  border-radius: var(--radius-md);
  padding: 24px 28px;
  margin-bottom: 40px;
  border-left: 4px solid var(--accent);
}

.plan-note h2 {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 8px;
}

.plan-note p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 6px;
}

.plan-note p:last-child {
  margin-bottom: 0;
}

/* 相关链接卡片 */
.related-links-list {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.related-link-card {
  display: block;
  background-color: var(--card-bg);
  border: 1px solid var(--divider);
  border-radius: var(--radius-md);
  padding: 20px;
  transition: all 0.2s ease;
}

.related-link-card:hover {
  border-color: var(--accent);
  box-shadow: var(--shadow-hover);
}

.related-link-title {
  display: block;
  font-size: 16px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 4px;
}

.related-link-card:hover .related-link-title {
  color: var(--accent);
}

.related-link-desc {
  display: block;
  font-size: 13px;
  color: var(--text-secondary);
}

/* ============================================================
   Pages - 阅读规则 (yhmh/guide.html)
   ============================================================ */

/* 步骤网格 */
.steps-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-bottom: 40px;
}

.step-card {
  background-color: var(--card-bg);
  border-radius: var(--radius-md);
  padding: 24px;
  border: 1px solid var(--divider);
  box-shadow: var(--shadow-card);
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.step-card:hover {
  border-color: var(--accent);
  box-shadow: var(--shadow-hover);
}

.step-number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  font-size: 16px;
  font-weight: 700;
  color: var(--accent);
  background-color: var(--accent-weak);
  border-radius: 50%;
  margin-bottom: 14px;
}

.step-heading {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 8px;
}

.step-text {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.6;
  margin: 0;
}

.step-text a {
  font-weight: 500;
}

/* 规则手风琴 */
.rules-accordion {
  margin-bottom: 40px;
}

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

.accordion-item {
  background-color: var(--card-bg);
  border: 1px solid var(--divider);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: border-color 0.2s ease;
}

.accordion-item:hover {
  border-color: var(--accent);
}

.accordion-item[open] {
  border-color: var(--accent);
}

.accordion-summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 24px;
  font-size: 15px;
  font-weight: 600;
  color: var(--text-primary);
  cursor: pointer;
  list-style: none;
}

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

.accordion-summary::after {
  content: "+";
  font-size: 20px;
  font-weight: 400;
  color: var(--accent);
  transition: transform 0.25s ease;
}

.accordion-item[open] .accordion-summary::after {
  transform: rotate(45deg);
}

.accordion-content {
  padding: 0 24px 20px;
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.7;
}

.accordion-content p {
  margin-bottom: 8px;
}

/* 链接卡片 */
.link-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.link-card {
  display: block;
  background-color: var(--card-bg);
  border: 1px solid var(--divider);
  border-radius: var(--radius-md);
  padding: 20px;
  transition: all 0.2s ease;
}

.link-card:hover {
  border-color: var(--accent);
  box-shadow: var(--shadow-hover);
}

.link-card-title {
  display: block;
  font-size: 16px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 4px;
}

.link-card:hover .link-card-title {
  color: var(--accent);
}

.link-card-desc {
  display: block;
  font-size: 13px;
  color: var(--text-secondary);
}

/* ============================================================
   Pages - 使用问答 (yhmh/faq.html)
   ============================================================ */

/* 分类标签 */
.category-tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.category-tag {
  display: inline-block;
  font-size: 14px;
  font-weight: 500;
  color: var(--text-secondary);
  padding: 8px 18px;
  background-color: var(--card-bg);
  border: 1px solid var(--divider);
  border-radius: 999px;
  transition: all 0.2s ease;
}

.category-tag:hover {
  color: var(--accent);
  border-color: var(--accent);
  background-color: var(--accent-weak);
}

/* FAQ 分组标题 */
.faq-group-title {
  font-size: 17px;
  font-weight: 600;
  color: var(--text-primary);
  margin: 28px 0 14px;
  padding-left: 12px;
  border-left: 3px solid var(--accent);
}

/* FAQ 手风琴 */
.faq-item {
  background-color: var(--card-bg);
  border: 1px solid var(--divider);
  border-radius: var(--radius-md);
  margin-bottom: 10px;
  overflow: hidden;
  transition: border-color 0.2s ease;
}

.faq-item:hover {
  border-color: var(--accent);
}

.faq-item[open] {
  border-color: var(--accent);
}

.faq-item summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 20px;
  font-size: 15px;
  font-weight: 500;
  color: var(--text-primary);
  cursor: pointer;
  list-style: none;
}

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

.faq-item summary::after {
  content: "+";
  font-size: 18px;
  font-weight: 400;
  color: var(--accent);
  transition: transform 0.25s ease;
}

.faq-item[open] summary::after {
  transform: rotate(45deg);
}

.faq-answer {
  padding: 0 20px 18px;
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.7;
}

.faq-answer p {
  margin-bottom: 8px;
}

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

.faq-answer a {
  font-weight: 500;
}

/* FAQ 相关入口 */
.related-link-list {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}

.related-link {
  display: block;
  background-color: var(--card-bg);
  border: 1px solid var(--divider);
  border-radius: var(--radius-md);
  padding: 16px 20px;
  font-size: 14px;
  font-weight: 500;
  color: var(--text-primary);
  text-align: center;
  transition: all 0.2s ease;
}

.related-link:hover {
  border-color: var(--accent);
  color: var(--accent);
  box-shadow: var(--shadow-hover);
}

/* ============================================================
   Pages - 404 (404.html)
   ============================================================ */

.error-main {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 60vh;
  padding: 40px var(--gutter);
}

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

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

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

.error-desc {
  font-size: 14px;
  color: var(--text-secondary);
  margin-bottom: 24px;
}

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

.error-link {
  display: inline-block;
  font-size: 14px;
  font-weight: 500;
  padding: 10px 24px;
  border-radius: 999px;
  border: 1px solid var(--accent);
  color: var(--accent);
  transition: all 0.2s ease;
}

.error-link:hover {
  background-color: var(--accent);
  color: #fff;
}

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

/* ---- 平板及以下 ---- */
@media (max-width: 1024px) {
  .footer-inner {
    grid-template-columns: repeat(2, 1fr);
  }

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

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

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

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

/* ---- 手机端 ---- */
@media (max-width: 768px) {
  /* 导航切换为汉堡 */
  .nav-toggle {
    display: flex;
  }

  .site-nav {
    position: static;
  }

  .nav-list {
    display: none;
    position: absolute;
    top: 64px;
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    background-color: var(--card-bg);
    border-bottom: 1px solid var(--divider);
    padding: 8px 24px 16px;
    box-shadow: 0 8px 16px rgba(31, 41, 51, 0.08);
    z-index: 99;
  }

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

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

  .nav-list a {
    display: block;
    padding: 12px 0;
    font-size: 16px;
    border-bottom: 1px solid var(--divider);
  }

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

  .nav-list a::after {
    display: none;
  }

  /* 汉堡按钮动画 */
  .nav-toggle[aria-expanded="true"] .nav-toggle-icon {
    background-color: transparent;
  }

  .nav-toggle[aria-expanded="true"] .nav-toggle-icon::before {
    top: 0;
    transform: rotate(45deg);
  }

  .nav-toggle[aria-expanded="true"] .nav-toggle-icon::after {
    top: 0;
    transform: rotate(-45deg);
  }

  /* 首页 Hero */
  .hero-intro {
    grid-template-columns: 1fr;
    padding: 32px 0 28px;
    gap: 24px;
  }

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

  .content-media-primary {
    order: 3;
  }

  /* 主推荐区 */
  .main-recommend {
    grid-template-columns: 1fr;
    gap: 20px;
  }

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

  .feature-cover {
    min-height: 180px;
    max-height: 240px;
  }

  /* 时间线 */
  .timeline-points {
    grid-template-columns: 1fr;
    gap: 12px;
  }

  /* 封面网格 */
  .grid-covers {
    grid-template-columns: repeat(2, 1fr);
    gap: 14px;
  }

  .cover-card img {
    aspect-ratio: 3 / 4;
  }

  /* 浏览入口 */
  .browse-links {
    grid-template-columns: 1fr;
    gap: 12px;
  }

  /* 阅读规则 */
  .steps {
    grid-template-columns: 1fr;
    gap: 12px;
  }

  .guide-steps {
    padding: 24px 20px;
  }

  /* 内页通用 */
  .inner-main {
    padding: 20px 16px 40px;
  }

  .home-main {
    padding: 0 16px 40px;
  }

  .page-header {
    flex-direction: column;
    gap: 16px;
    margin-bottom: 24px;
  }

  .page-title {
    font-size: 22px;
  }

  .page-header-media,
  .page-heading-media {
    width: 100%;
  }

  .page-header-media img,
  .page-heading-media img {
    height: 120px;
  }

  .breadcrumb {
    margin-bottom: 14px;
    font-size: 12px;
  }

  /* 近期推荐 */
  .topic-card {
    grid-template-columns: 1fr;
    gap: 14px;
  }

  .topic-cover {
    max-width: 160px;
    aspect-ratio: 3 / 4;
  }

  .timeline-list {
    padding-left: 18px;
  }

  .timeline-marker {
    left: -18px;
    width: 12px;
    height: 12px;
  }

  /* 更新记录 */
  .log-item {
    grid-template-columns: 1fr;
    gap: 8px;
    padding: 14px 16px;
  }

  .log-desc {
    grid-column: 1;
    margin-top: 0;
  }

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

  /* 题材归档 */
  .genre-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }

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

  .guide-entry-cards {
    grid-template-columns: 1fr;
    gap: 12px;
  }

  /* 新作预告 */
  .plan-intro {
    grid-template-columns: 1fr;
    gap: 16px;
    padding: 24px 20px;
  }

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

  .related-links-list {
    grid-template-columns: 1fr;
    gap: 12px;
  }

  /* 阅读规则 */
  .steps-grid {
    grid-template-columns: 1fr;
    gap: 14px;
  }

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

  .accordion-summary {
    padding: 14px 16px;
    font-size: 14px;
  }

  .accordion-content {
    padding: 0 16px 16px;
  }

  /* 使用问答 */
  .related-link-list {
    grid-template-columns: 1fr 1fr;
    gap: 10px;
  }

  .related-link {
    padding: 12px 10px;
    font-size: 13px;
  }

  .faq-item summary {
    padding: 14px 16px;
    font-size: 14px;
  }

  .faq-answer {
    padding: 0 16px 14px;
  }

  /* 页脚 */
  .footer-inner {
    grid-template-columns: 1fr;
    gap: 24px;
    padding: 32px 16px 24px;
  }

  .footer-bottom {
    padding: 14px 16px;
  }

  /* 404 */
  .error-panel {
    padding: 32px 20px;
  }

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

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

  .error-link {
    width: 100%;
    text-align: center;
  }
}

/* ---- 小屏手机优化 ---- */
@media (max-width: 400px) {
  .grid-covers {
    grid-template-columns: repeat(2, 1fr);
    gap: 10px;
  }

  .cover-desc {
    font-size: 12px;
    padding: 4px 10px 10px;
  }

  .cover-genre {
    padding: 6px 10px 0;
    font-size: 11px;
  }

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

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

  .ranking-summary {
    padding: 18px;
  }

  .feature-content {
    padding: 16px;
  }

  .timeline-entry {
    padding: 10px 12px;
    flex-direction: column;
    gap: 4px;
  }

  .timeline-label {
    min-width: 0;
  }

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

  .hero-lead {
    font-size: 14px;
  }
}

/* ============================================================
   Motion - 轻量动效（不影响初始可见性）
   ============================================================ */

@media (prefers-reduced-motion: no-preference) {
  .cover-card,
  .genre-card,
  .step-card,
  .plan-col,
  .guide-entry-card,
  .link-card,
  .related-link-card {
    transition: transform 0.25s ease, box-shadow 0.25s ease,
      border-color 0.2s ease;
  }
}