/* ==========================================================
   日本里番动漫 · 全站样式表
   视觉方向：实验排版风 · 深色底 + 高饱和点缀
   ========================================================== */

/* ----------------------------------------------------------
   1. Base — 变量 / 重置 / 全局基础
   ---------------------------------------------------------- */
:root {
  --color-bg: #1a1a2e;
  --color-bg-soft: #16213e;
  --color-bg-card: #1f2440;
  --color-accent: #e94560;
  --color-accent-soft: rgba(233, 69, 96, 0.14);
  --color-gold: #ffd700;
  --color-text: #f5f5f5;
  --color-text-dim: #a8adc4;
  --color-border: rgba(255, 255, 255, 0.08);

  --font-heading: "PingFang SC", "Microsoft YaHei", "Source Han Sans SC", "Noto Sans CJK SC", sans-serif;
  --font-body: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;

  --container-width: 1200px;
  --radius: 8px;
  --radius-sm: 6px;
  --transition: 0.25s ease;
  --shadow: 0 12px 32px rgba(0, 0, 0, 0.28);
}

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

html {
  scroll-behavior: smooth;
}

body {
  background: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

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

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

ul, ol {
  list-style: none;
}

h1, h2, h3, h4 {
  font-family: var(--font-heading);
  line-height: 1.3;
  font-weight: 700;
}

p {
  margin-bottom: 1em;
}

/* ----------------------------------------------------------
   2. Layout — 全站骨架 / 容器 / 页头 / 页脚
   ---------------------------------------------------------- */
.site-header {
  background: rgba(26, 26, 46, 0.92);
  border-bottom: 1px solid var(--color-border);
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(8px);
}

.header-shell {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 24px;
  height: 68px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand-logo {
  font-family: var(--font-heading);
  font-size: 22px;
  font-weight: 800;
  color: var(--color-text);
  letter-spacing: 0.02em;
  white-space: nowrap;
  flex-shrink: 0;
}

.brand-logo::before {
  content: "";
  display: inline-block;
  width: 8px;
  height: 8px;
  background: var(--color-accent);
  border-radius: 2px;
  margin-right: 8px;
  vertical-align: 2px;
}

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

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

.site-nav .nav-list a {
  display: block;
  padding: 8px 16px;
  font-size: 15px;
  font-weight: 500;
  color: var(--color-text-dim);
  border-radius: var(--radius-sm);
  transition: color var(--transition), background var(--transition);
}

.site-nav .nav-list a:hover {
  color: var(--color-text);
  background: var(--color-accent-soft);
}

.site-nav .nav-list a.is-current {
  color: var(--color-accent);
  background: var(--color-accent-soft);
  font-weight: 700;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  padding: 10px;
  background: transparent;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  cursor: pointer;
}

.nav-toggle-bar {
  display: block;
  width: 100%;
  height: 2px;
  background: var(--color-text);
  border-radius: 2px;
  transition: transform 0.3s ease, opacity 0.3s ease;
}

.site-main {
  flex: 1;
}

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

.footer-shell {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 48px 24px 24px;
}

.footer-brand {
  margin-bottom: 32px;
}

.footer-logo {
  font-family: var(--font-heading);
  font-size: 20px;
  font-weight: 800;
  margin-bottom: 8px;
}

.footer-logo::before {
  content: "";
  display: inline-block;
  width: 8px;
  height: 8px;
  background: var(--color-accent);
  border-radius: 2px;
  margin-right: 8px;
  vertical-align: 2px;
}

.footer-desc {
  color: var(--color-text-dim);
  font-size: 14px;
  max-width: 420px;
  line-height: 1.7;
}

.footer-links {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 32px;
  padding: 32px 0;
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

.footer-col-title {
  font-family: var(--font-heading);
  font-size: 15px;
  font-weight: 700;
  margin-bottom: 14px;
  color: var(--color-text);
}

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

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

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

.footer-copyright {
  padding-top: 24px;
  color: var(--color-text-dim);
  font-size: 13px;
  text-align: center;
}

/* ----------------------------------------------------------
   3. Components — 通用组件
   ---------------------------------------------------------- */
/* 3.1 按钮 */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 24px;
  font-size: 15px;
  font-weight: 600;
  border-radius: var(--radius);
  border: 1px solid transparent;
  cursor: pointer;
  transition: background var(--transition), color var(--transition), border-color var(--transition), transform var(--transition);
  min-height: 44px;
}

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

.btn-primary:hover {
  background: #d63851;
  transform: translateY(-2px);
}

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

.btn-secondary:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
}

.btn-tertiary {
  background: var(--color-bg-soft);
  color: var(--color-gold);
  border-color: rgba(255, 215, 0, 0.3);
}

.btn-tertiary:hover {
  border-color: var(--color-gold);
  transform: translateY(-2px);
}

/* 3.2 区块标题 */
.section-title {
  font-size: 28px;
  font-weight: 800;
  margin-bottom: 8px;
  position: relative;
  padding-left: 16px;
}

.section-title::before {
  content: "";
  position: absolute;
  left: 0;
  top: 8px;
  bottom: 8px;
  width: 4px;
  background: var(--color-accent);
  border-radius: 2px;
}

.section-desc {
  color: var(--color-text-dim);
  font-size: 15px;
  margin-bottom: 28px;
}

/* 3.3 面包屑 */
.breadcrumb {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 20px 24px 0;
  font-size: 14px;
  color: var(--color-text-dim);
  display: flex;
  align-items: center;
  gap: 10px;
}

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

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

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

.breadcrumb-current {
  color: var(--color-text);
  font-weight: 600;
}

/* 3.4 页面标题区 */
.page-header {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 32px 24px 28px;
}

.page-title {
  font-size: 32px;
  font-weight: 800;
  margin-bottom: 12px;
}

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

/* 3.5 更新列表（首页 & 栏目共用） */
.update-group {
  margin-bottom: 28px;
}

.update-date {
  font-size: 16px;
  font-weight: 700;
  color: var(--color-gold);
  margin-bottom: 12px;
  padding-bottom: 6px;
  border-bottom: 1px dashed var(--color-border);
  display: inline-block;
}

.update-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.update-item {
  display: flex;
  align-items: center;
  gap: 16px;
  background: var(--color-bg-card);
  border-radius: var(--radius);
  padding: 12px 16px;
  border: 1px solid transparent;
  transition: border-color var(--transition), background var(--transition);
}

.update-item:hover {
  border-color: var(--color-accent);
  background: rgba(233, 69, 96, 0.06);
}

.update-item img {
  width: 56px;
  height: 76px;
  object-fit: cover;
  border-radius: var(--radius-sm);
  flex-shrink: 0;
}

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

.update-title {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 4px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

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

.update-status {
  display: inline-block;
  font-size: 12px;
  font-weight: 600;
  padding: 4px 10px;
  border-radius: 20px;
  white-space: nowrap;
  flex-shrink: 0;
}

.status-new {
  background: rgba(233, 69, 96, 0.15);
  color: var(--color-accent);
  border: 1px solid rgba(233, 69, 96, 0.4);
}

.status-update {
  background: rgba(255, 215, 0, 0.12);
  color: var(--color-gold);
  border: 1px solid rgba(255, 215, 0, 0.3);
}

/* 3.6 人气榜单条目 */
.rank-number {
  font-family: var(--font-heading);
  font-size: 24px;
  font-weight: 800;
  color: var(--color-accent);
  min-width: 40px;
}

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

/* 3.7 相关链接 */
.related-links {
  margin-top: 40px;
  padding: 20px;
  background: var(--color-bg-card);
  border-radius: var(--radius);
  border: 1px solid var(--color-border);
}

.related-links p {
  margin-bottom: 8px;
  font-weight: 600;
}

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

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

/* ----------------------------------------------------------
   4. Pages — 首页
   ---------------------------------------------------------- */
/* 4.1 Hero */
.hero-section {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 56px 24px 48px;
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 48px;
  align-items: center;
}

.hero-content h1 {
  font-size: 44px;
  font-weight: 900;
  line-height: 1.25;
  margin-bottom: 16px;
}

.hero-slogan {
  font-size: 18px;
  color: var(--color-gold);
  font-weight: 600;
  margin-bottom: 16px;
}

.hero-intro {
  color: var(--color-text-dim);
  font-size: 16px;
  line-height: 1.9;
  margin-bottom: 28px;
  max-width: 480px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

.hero-figure {
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  position: relative;
}

.hero-figure img {
  width: 100%;
  height: 100%;
  max-height: 420px;
  object-fit: cover;
  border-radius: var(--radius);
}

/* 4.2 题材分类导航 */
.category-nav-section {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 48px 24px;
  border-top: 1px solid var(--color-border);
}

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

.category-tags a {
  display: inline-block;
  padding: 10px 22px;
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: 30px;
  font-size: 15px;
  color: var(--color-text);
  transition: all var(--transition);
}

.category-tags a:hover {
  background: var(--color-accent);
  border-color: var(--color-accent);
  color: #fff;
  transform: translateY(-2px);
}

/* 4.3 最近更新 */
.recent-updates-section {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 48px 24px;
  border-top: 1px solid var(--color-border);
}

.more-link {
  margin-top: 24px;
  text-align: right;
}

.more-link a {
  color: var(--color-accent);
  font-weight: 600;
  font-size: 15px;
}

.more-link a:hover {
  color: var(--color-gold);
}

/* 4.4 人气榜单预览 */
.rank-preview-section {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 48px 24px;
  border-top: 1px solid var(--color-border);
}

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

.rank-item {
  background: var(--color-bg-card);
  border-radius: var(--radius);
  border: 1px solid var(--color-border);
  transition: transform var(--transition), border-color var(--transition);
}

.rank-item:hover {
  transform: translateY(-4px);
  border-color: var(--color-accent);
}

.rank-link {
  display: flex;
  gap: 16px;
  padding: 16px;
  align-items: flex-start;
  height: 100%;
}

.rank-cover {
  width: 72px;
  height: 96px;
  overflow: hidden;
  border-radius: var(--radius-sm);
  flex-shrink: 0;
}

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

.rank-detail {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.rank-title {
  font-size: 15px;
  font-weight: 700;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

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

/* 4.5 阅读指南与追更技巧入口 */
.guide-entry-section {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 48px 24px;
  border-top: 1px solid var(--color-border);
}

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

.guide-card {
  background: var(--color-bg-card);
  border-radius: var(--radius);
  padding: 28px;
  border: 1px solid var(--color-border);
  transition: transform var(--transition), border-color var(--transition);
  display: flex;
  flex-direction: column;
}

.guide-card:hover {
  transform: translateY(-4px);
  border-color: var(--color-gold);
}

.guide-card-title {
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 10px;
  position: relative;
  padding-left: 14px;
}

.guide-card-title::before {
  content: "";
  position: absolute;
  left: 0;
  top: 6px;
  bottom: 6px;
  width: 3px;
  background: var(--color-gold);
  border-radius: 2px;
}

.guide-card-desc {
  color: var(--color-text-dim);
  font-size: 14px;
  line-height: 1.8;
  margin-bottom: 20px;
  flex: 1;
}

.card-link {
  color: var(--color-accent);
  font-weight: 600;
  font-size: 15px;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.card-link::after {
  content: "→";
  transition: transform var(--transition);
}

.card-link:hover::after {
  transform: translateX(4px);
}

/* 4.6 版权与反馈说明 */
.copyright-feedback-section {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 40px 24px 56px;
  border-top: 1px solid var(--color-border);
}

.copyright-text {
  color: var(--color-text-dim);
  font-size: 14px;
  line-height: 1.9;
  max-width: 840px;
}

/* ----------------------------------------------------------
   5. Pages — 内页公共
   ---------------------------------------------------------- */
.inner-main {
  padding-bottom: 60px;
}

/* 5.1 分类页 */
.layout-shell {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 24px;
  display: grid;
  grid-template-columns: 240px 1fr;
  gap: 32px;
  align-items: start;
}

.sidebar-left {
  grid-template-columns: 240px 1fr;
}

.category-sidebar {
  position: sticky;
  top: 88px;
  background: var(--color-bg-card);
  border-radius: var(--radius);
  padding: 20px;
  border: 1px solid var(--color-border);
}

.sidebar-title {
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 16px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--color-border);
}

.category-tab-list li {
  margin-bottom: 4px;
}

.category-tab-list a {
  display: block;
  padding: 8px 12px;
  border-radius: var(--radius-sm);
  color: var(--color-text-dim);
  font-size: 15px;
  transition: background var(--transition), color var(--transition);
}

.category-tab-list a:hover {
  background: var(--color-accent-soft);
  color: var(--color-accent);
}

.category-main-content {
  min-width: 0;
}

.category-block {
  margin-bottom: 44px;
  scroll-margin-top: 88px;
}

.category-block-title {
  font-size: 24px;
  font-weight: 700;
  margin-bottom: 8px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--color-border);
  position: relative;
}

.category-block-title::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -1px;
  width: 56px;
  height: 2px;
  background: var(--color-accent);
}

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

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

.work-card {
  background: var(--color-bg-card);
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--color-border);
  transition: transform var(--transition), border-color var(--transition);
}

.work-card:hover {
  transform: translateY(-3px);
  border-color: var(--color-accent);
}

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

.work-card h3 {
  font-size: 16px;
  font-weight: 700;
  padding: 14px 16px 4px;
}

.work-tags {
  padding: 0 16px 14px;
  font-size: 13px;
  color: var(--color-text-dim);
}

/* 5.2 指南页 & 追更技巧页 */
.guide-toc,
.toc {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 24px 24px;
}

.toc-title {
  font-size: 15px;
  font-weight: 700;
  margin-bottom: 10px;
  color: var(--color-gold);
}

.guide-toc ul li,
.toc-list li {
  margin-bottom: 6px;
}

.guide-toc ul a,
.toc-list a {
  color: var(--color-text-dim);
  font-size: 15px;
}

.guide-toc ul a:hover,
.toc-list a:hover {
  color: var(--color-accent);
}

.guide-content,
.longtail-content {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 24px;
}

.guide-section,
.content-section {
  margin-bottom: 44px;
  scroll-margin-top: 88px;
}

.guide-section h2,
.content-section h2 {
  font-size: 24px;
  font-weight: 700;
  margin-bottom: 16px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--color-border);
  position: relative;
}

.guide-section h2::after,
.content-section h2::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -1px;
  width: 56px;
  height: 2px;
  background: var(--color-accent);
}

.guide-section p,
.content-section p {
  color: var(--color-text-dim);
  line-height: 1.9;
  margin-bottom: 16px;
}

.guide-figure,
.content-figure {
  margin: 24px 0;
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--color-border);
}

.guide-figure img,
.content-figure img {
  width: 100%;
  height: auto;
  max-height: 360px;
  object-fit: cover;
}

.guide-figure figcaption,
.content-figure figcaption {
  padding: 12px 16px;
  font-size: 13px;
  color: var(--color-text-dim);
  background: var(--color-bg-card);
}

.guide-section details {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 16px 20px;
  margin-bottom: 12px;
}

.guide-section summary {
  font-weight: 600;
  cursor: pointer;
  font-size: 15px;
}

.guide-section details p {
  margin-top: 12px;
  font-size: 14px;
}

.guide-steps {
  counter-reset: step;
  margin: 20px 0;
}

.guide-steps li {
  counter-increment: step;
  position: relative;
  padding-left: 44px;
  margin-bottom: 14px;
  color: var(--color-text-dim);
  line-height: 1.8;
}

.guide-steps li::before {
  content: counter(step);
  position: absolute;
  left: 0;
  top: 2px;
  width: 28px;
  height: 28px;
  background: var(--color-accent);
  color: #fff;
  border-radius: 50%;
  font-size: 14px;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
}

.guide-related {
  max-width: var(--container-width);
  margin: 40px auto 0;
  padding: 20px 24px;
}

.related-title {
  font-weight: 700;
  margin-bottom: 12px;
}

.guide-related ul li {
  margin-bottom: 8px;
}

.guide-related ul a {
  color: var(--color-accent);
  font-size: 15px;
}

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

/* 5.3 最近更新页 */
.update-section {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 24px 32px;
}

.update-section .update-item {
  padding: 16px;
}

.update-cover {
  width: 64px;
  height: 88px;
  border-radius: var(--radius-sm);
  overflow: hidden;
  flex-shrink: 0;
}

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

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

.status-note {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 32px 24px;
  border-top: 1px solid var(--color-border);
}

.status-legend {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
  margin: 16px 0;
}

.status-legend li {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  color: var(--color-text-dim);
}

.legend-badge {
  display: inline-block;
  width: 12px;
  height: 12px;
  border-radius: 3px;
}

.legend-badge.status-new {
  background: var(--color-accent);
}

.legend-badge.status-update {
  background: var(--color-gold);
}

.status-note p {
  color: var(--color-text-dim);
  font-size: 14px;
}

.status-note a {
  color: var(--color-accent);
}

.status-note a:hover {
  text-decoration: underline;
}

.related-links-label {
  font-weight: 700;
  display: block;
  margin-bottom: 10px;
}

.related-links-item {
  color: var(--color-accent);
  display: inline-block;
  margin-right: 16px;
  margin-bottom: 8px;
}

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

/* 5.4 人气榜单页 */
.page-layout {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 24px;
  display: grid;
  grid-template-columns: 1fr 300px;
  gap: 32px;
  align-items: start;
}

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

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

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

.rank-item {
  display: flex;
  align-items: center;
  gap: 20px;
  background: var(--color-bg-card);
  border-radius: var(--radius);
  padding: 16px 20px;
  border: 1px solid var(--color-border);
  transition: transform var(--transition), border-color var(--transition);
}

.rank-item:hover {
  transform: translateX(6px);
  border-color: var(--color-accent);
}

.rank-cover {
  width: 64px;
  height: 88px;
  border-radius: var(--radius-sm);
  overflow: hidden;
  flex-shrink: 0;
}

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

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

.rank-title {
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 4px;
}

.rank-reason {
  font-size: 13px;
  color: var(--color-text-dim);
  line-height: 1.6;
}

.rank-note {
  background: var(--color-bg-card);
  border-radius: var(--radius);
  padding: 24px;
  border: 1px solid var(--color-border);
}

.rank-note h2 {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 12px;
}

.rank-note p {
  color: var(--color-text-dim);
  font-size: 14px;
}

.rank-note a {
  color: var(--color-accent);
}

.rank-note a:hover {
  text-decoration: underline;
}

.sidebar-area {
  display: flex;
  flex-direction: column;
  gap: 20px;
  position: sticky;
  top: 88px;
}

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

.side-card h2 {
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 14px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--color-border);
}

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

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

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

/* 5.5 追更技巧页 */
.tips-list {
  margin: 16px 0;
}

.tips-list li {
  position: relative;
  padding-left: 24px;
  margin-bottom: 10px;
  color: var(--color-text-dim);
  line-height: 1.8;
}

.tips-list li::before {
  content: "◆";
  position: absolute;
  left: 0;
  color: var(--color-gold);
  font-size: 12px;
  top: 2px;
}

/* ----------------------------------------------------------
   6. Pages — 404
   ---------------------------------------------------------- */
.error-main {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 80px 24px;
  flex: 1;
}

.error-section {
  text-align: center;
  max-width: 560px;
}

.error-section h1 {
  font-size: 28px;
  font-weight: 800;
  margin-bottom: 8px;
}

.error-code {
  font-family: var(--font-heading);
  font-size: 72px;
  font-weight: 900;
  color: var(--color-accent);
  line-height: 1.2;
  margin-bottom: 8px;
}

.error-desc {
  color: var(--color-text-dim);
  margin-bottom: 28px;
}

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

/* ----------------------------------------------------------
   7. Responsive — 响应式
   ---------------------------------------------------------- */
@media (max-width: 1024px) {
  .hero-section {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .hero-figure img {
    max-height: 320px;
  }

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

  .layout-shell,
  .sidebar-left {
    grid-template-columns: 200px 1fr;
    gap: 24px;
  }

  .page-layout {
    grid-template-columns: 1fr 260px;
    gap: 24px;
  }
}

@media (max-width: 768px) {
  .header-shell {
    height: 60px;
    padding: 0 16px;
  }

  .nav-toggle {
    display: flex;
  }

  .site-nav {
    position: absolute;
    top: 60px;
    left: 0;
    right: 0;
    background: var(--color-bg-soft);
    border-bottom: 1px solid var(--color-border);
    padding: 0;
    box-shadow: 0 16px 32px rgba(0, 0, 0, 0.3);
  }

  .site-nav .nav-list {
    display: none;
    flex-direction: column;
    padding: 12px 16px;
    gap: 0;
  }

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

  .site-nav .nav-list a {
    padding: 14px 12px;
    border-bottom: 1px solid var(--color-border);
    border-radius: 0;
  }

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

  .hero-section {
    padding: 40px 16px 32px;
  }

  .hero-content h1 {
    font-size: 32px;
  }

  .hero-actions {
    flex-direction: column;
    align-items: stretch;
  }

  .hero-actions .btn {
    width: 100%;
  }

  .category-nav-section,
  .recent-updates-section,
  .rank-preview-section,
  .guide-entry-section,
  .copyright-feedback-section {
    padding: 36px 16px;
  }

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

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

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

  .update-item {
    flex-wrap: wrap;
    gap: 10px;
  }

  .update-status {
    margin-left: auto;
  }

  .layout-shell,
  .sidebar-left {
    grid-template-columns: 1fr;
    gap: 24px;
    padding: 0 16px;
  }

  .category-sidebar {
    position: static;
    overflow-x: auto;
    padding: 16px;
  }

  .category-tab-list {
    display: flex;
    gap: 8px;
    overflow-x: auto;
    padding-bottom: 4px;
  }

  .category-tab-list li {
    flex-shrink: 0;
    margin-bottom: 0;
  }

  .category-tab-list a {
    white-space: nowrap;
    padding: 8px 16px;
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: 20px;
  }

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

  .page-layout {
    grid-template-columns: 1fr;
    padding: 0 16px;
    gap: 24px;
  }

  .sidebar-area {
    position: static;
  }

  .page-header {
    padding: 24px 16px 20px;
  }

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

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

  .guide-toc,
  .toc,
  .guide-content,
  .longtail-content {
    padding: 0 16px;
  }

  .guide-related {
    padding: 20px 16px;
  }

  .update-section,
  .status-note {
    padding: 0 16px;
  }

  .status-note {
    padding: 24px 16px;
  }

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

  .rank-number {
    font-size: 20px;
    min-width: 32px;
  }

  .footer-shell {
    padding: 32px 16px 20px;
  }

  .footer-links {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  .error-main {
    padding: 40px 16px;
  }

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

@media (max-width: 480px) {
  .brand-logo {
    font-size: 18px;
  }

  .hero-content h1 {
    font-size: 28px;
  }

  .hero-slogan {
    font-size: 16px;
  }

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

  .update-item img {
    width: 48px;
    height: 64px;
  }

  .update-title {
    font-size: 14px;
  }

  .update-meta {
    font-size: 12px;
  }

  .rank-link {
    flex-direction: column;
  }

  .rank-cover {
    width: 100%;
    height: 160px;
  }

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

  .guide-card {
    padding: 20px;
  }

  .work-card img {
    height: 200px;
  }
}