/* ============================================================
   BASE — 全局基础样式
   ============================================================ */
:root {
  --canvas: #f5f2ec;
  --ink: #1e2226;
  --accent: #a8483a;
  --accent-dark: #8a3a2e;
  --gray: #8a8f94;
  --card: #ffffff;
  --line: #e2ddd3;
  --serif: Georgia, 'Noto Serif SC', 'Songti SC', STSong, serif;
  --sans: 'PingFang SC', 'Microsoft YaHei', sans-serif;
  --container: 1200px;
  --radius: 8px;
  --shadow: 0 2px 12px rgba(30, 34, 38, 0.06);
  --transition: 0.25s ease;
}

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

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

body {
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.75;
  color: var(--ink);
  background-color: var(--canvas);
}

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

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

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

ul,
ol {
  list-style: none;
}

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

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

/* ============================================================
   LAYOUT — 全站骨架布局
   ============================================================ */
.site-body {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

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

.header-inner {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
  height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand-link {
  display: flex;
  align-items: baseline;
  gap: 10px;
  flex-shrink: 0;
}

.brand-name {
  font-family: var(--serif);
  font-size: 24px;
  font-weight: 700;
  color: var(--ink);
  letter-spacing: 0.02em;
}

.brand-tagline {
  font-size: 13px;
  color: var(--gray);
  display: none;
}

.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(--ink);
  border-radius: 4px;
  min-height: 44px;
  line-height: 28px;
}

.site-nav .nav-list a:hover {
  color: var(--accent);
  background-color: rgba(168, 72, 58, 0.06);
}

.site-nav .nav-list a.is-current {
  color: var(--accent);
  font-weight: 600;
  background-color: rgba(168, 72, 58, 0.08);
}

.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
  border-radius: 4px;
}

.nav-toggle-bar {
  display: block;
  width: 22px;
  height: 2px;
  background-color: var(--ink);
  border-radius: 2px;
  transition: transform var(--transition), opacity var(--transition);
}

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

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

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

.site-main {
  flex: 1;
}

.site-main.inner-main {
  max-width: var(--container);
  width: 100%;
  margin: 0 auto;
  padding: 0 24px 64px;
}

/* 面包屑 */
.breadcrumb {
  padding: 20px 0 8px;
  font-size: 14px;
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
}

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

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

.breadcrumb-sep {
  color: var(--gray);
  font-size: 13px;
}

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

/* 页面标题区 */
.page-header {
  padding: 28px 0 32px;
  border-bottom: 1px solid var(--line);
  margin-bottom: 40px;
}

.page-title {
  font-family: var(--serif);
  font-size: 32px;
  font-weight: 700;
  color: var(--ink);
  line-height: 1.3;
  margin-bottom: 12px;
  letter-spacing: 0.01em;
}

.page-description {
  font-size: 16px;
  color: var(--gray);
  max-width: 720px;
  line-height: 1.75;
}

/* 页脚 */
.site-footer {
  background-color: #eae6de;
  border-top: 1px solid var(--line);
}

.footer-inner {
  max-width: var(--container);
  margin: 0 auto;
  padding: 48px 24px 32px;
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr 1fr;
  gap: 32px;
}

.footer-brand-name {
  font-family: var(--serif);
  font-size: 20px;
  font-weight: 700;
  color: var(--ink);
  margin-bottom: 8px;
}

.footer-brand-desc {
  font-size: 14px;
  color: var(--gray);
  line-height: 1.7;
  max-width: 280px;
}

.footer-col-title {
  font-size: 15px;
  font-weight: 600;
  color: var(--ink);
  margin-bottom: 14px;
}

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

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

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

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

.footer-bottom p {
  font-size: 13px;
  color: var(--gray);
}

/* ============================================================
   COMPONENTS — 通用组件
   ============================================================ */
/* 区块标题 */
.section-heading {
  margin-bottom: 32px;
}

.section-title {
  font-family: var(--serif);
  font-size: 22px;
  font-weight: 700;
  color: var(--ink);
  line-height: 1.4;
  margin-bottom: 8px;
  letter-spacing: 0.01em;
}

.section-desc {
  font-size: 15px;
  color: var(--gray);
  line-height: 1.7;
  max-width: 640px;
}

.section-footer-link {
  margin-top: 28px;
  text-align: center;
}

.section-footer-link a {
  display: inline-block;
  min-height: 44px;
  line-height: 44px;
  padding: 0 24px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  font-size: 14px;
  color: var(--ink);
  background-color: var(--card);
}

.section-footer-link a:hover {
  border-color: var(--accent);
  color: var(--accent);
}

/* 按钮 */
.btn {
  display: inline-block;
  min-height: 44px;
  line-height: 44px;
  padding: 0 28px;
  border-radius: var(--radius);
  font-size: 15px;
  font-weight: 500;
  text-align: center;
}

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

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

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

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

.btn-text {
  display: inline-block;
  min-height: 44px;
  line-height: 44px;
  padding: 0 4px;
  font-size: 15px;
  color: var(--accent);
  font-weight: 500;
}

.btn-text:hover {
  color: var(--accent-dark);
}

/* 标签 */
.tag {
  display: inline-block;
  padding: 3px 12px;
  font-size: 12px;
  border-radius: 20px;
  background-color: rgba(168, 72, 58, 0.1);
  color: var(--accent);
  font-weight: 500;
}

.tag-genre {
  background-color: rgba(138, 143, 148, 0.12);
  color: var(--gray);
}

/* 状态徽标 */
.badge {
  display: inline-block;
  padding: 2px 10px;
  font-size: 12px;
  border-radius: 3px;
  font-weight: 500;
}

.badge-new {
  background-color: rgba(168, 72, 58, 0.12);
  color: var(--accent);
}

.badge-serial {
  background-color: rgba(30, 34, 38, 0.08);
  color: var(--ink);
}

.badge-end {
  background-color: rgba(138, 143, 148, 0.15);
  color: var(--gray);
}

.status-badge {
  display: inline-block;
  padding: 2px 10px;
  font-size: 12px;
  border-radius: 3px;
  font-weight: 500;
  white-space: nowrap;
  flex-shrink: 0;
}

.status-new {
  background-color: rgba(168, 72, 58, 0.12);
  color: var(--accent);
}

.status-serial {
  background-color: rgba(30, 34, 38, 0.08);
  color: var(--ink);
}

.status-ended {
  background-color: rgba(138, 143, 148, 0.15);
  color: var(--gray);
}

/* 文本链接 */
.text-link {
  display: inline-block;
  min-height: 44px;
  line-height: 44px;
  font-size: 14px;
  color: var(--accent);
  font-weight: 500;
}

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

/* 封面图容器 */
figure {
  margin: 0;
}

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

figcaption {
  font-size: 13px;
  color: var(--gray);
  line-height: 1.5;
}

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

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

.faq-question {
  padding: 16px 20px;
  font-size: 15px;
  font-weight: 600;
  color: var(--ink);
  cursor: pointer;
  min-height: 44px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  list-style: none;
}

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

.faq-question::after {
  content: "+";
  font-size: 20px;
  color: var(--gray);
  transition: transform var(--transition);
  flex-shrink: 0;
}

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

.faq-answer {
  padding: 0 20px 18px;
  font-size: 14px;
  color: var(--gray);
  line-height: 1.75;
}

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

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

/* 相关内容导航 */
.related-links {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  padding: 20px 0;
  border-top: 1px solid var(--line);
  margin-top: 40px;
}

.related-links-label {
  font-size: 14px;
  color: var(--gray);
  font-weight: 500;
}

.related-links-item {
  font-size: 14px;
  color: var(--accent);
  padding: 8px 4px;
  min-height: 44px;
  line-height: 28px;
}

.related-links-item:hover {
  color: var(--accent-dark);
}

/* ============================================================
   PAGES — 首页
   ============================================================ */
.home-main {
  max-width: var(--container);
  width: 100%;
  margin: 0 auto;
  padding: 0 24px 64px;
}

/* Hero 首屏 */
.hero-section {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 48px;
  align-items: center;
  padding: 56px 0 64px;
}

.hero-title {
  font-family: var(--serif);
  font-size: 38px;
  font-weight: 700;
  color: var(--ink);
  line-height: 1.3;
  margin-bottom: 16px;
  letter-spacing: 0.01em;
}

.hero-lead {
  font-size: 16px;
  color: var(--gray);
  line-height: 1.75;
  margin-bottom: 24px;
  max-width: 520px;
}

.hero-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 28px;
}

.tag-link {
  display: inline-block;
  padding: 6px 16px;
  min-height: 44px;
  line-height: 32px;
  font-size: 14px;
  color: var(--ink);
  background-color: var(--card);
  border: 1px solid var(--line);
  border-radius: 20px;
  transition: border-color var(--transition), color var(--transition);
}

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

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

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

.hero-figure img {
  width: 100%;
  height: 380px;
  object-fit: cover;
}

/* 主题封面墙 */
.cover-wall-section {
  padding: 56px 0;
  border-top: 1px solid var(--line);
}

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

.cover-band {
  position: relative;
  display: block;
  border-radius: var(--radius);
  overflow: hidden;
  background-color: var(--card);
  box-shadow: var(--shadow);
  transition: transform var(--transition), box-shadow var(--transition);
}

.cover-band:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 24px rgba(30, 34, 38, 0.1);
}

.cover-band img {
  width: 100%;
  height: 240px;
  object-fit: cover;
}

.cover-band-text {
  padding: 20px;
}

.cover-band-title {
  font-family: var(--serif);
  font-size: 18px;
  font-weight: 700;
  color: var(--ink);
  margin-bottom: 6px;
}

.cover-band-desc {
  font-size: 14px;
  color: var(--gray);
  line-height: 1.6;
}

/* 最近更新 */
.updates-section {
  padding: 56px 0;
  border-top: 1px solid var(--line);
}

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

.update-card {
  background-color: var(--card);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: transform var(--transition), box-shadow var(--transition);
}

.update-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 24px rgba(30, 34, 38, 0.1);
}

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

.update-card-body {
  padding: 16px 20px 20px;
}

.update-card-body .tag {
  margin-right: 8px;
}

.update-card-body .badge {
  vertical-align: middle;
}

.update-summary {
  font-size: 14px;
  color: var(--gray);
  line-height: 1.6;
  margin-top: 10px;
}

/* 人气榜单摘要 */
.rankings-summary-section {
  padding: 56px 0;
  border-top: 1px solid var(--line);
}

.ranking-summary-list {
  counter-reset: rank;
  display: flex;
  flex-direction: column;
  gap: 0;
}

.ranking-item {
  display: flex;
  align-items: flex-start;
  gap: 20px;
  padding: 20px 0;
  border-bottom: 1px solid var(--line);
}

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

.ranking-num {
  font-family: var(--serif);
  font-size: 28px;
  font-weight: 700;
  color: var(--accent);
  line-height: 1;
  width: 40px;
  flex-shrink: 0;
  padding-top: 2px;
}

.ranking-info h3 {
  font-family: var(--serif);
  font-size: 17px;
  font-weight: 700;
  color: var(--ink);
  margin-bottom: 4px;
}

.ranking-reason {
  font-size: 14px;
  color: var(--gray);
  line-height: 1.6;
}

/* 阅读指南四步 */
.guide-section {
  padding: 56px 0;
  border-top: 1px solid var(--line);
}

.guide-steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.guide-step {
  background-color: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 28px 24px;
  position: relative;
}

.step-num {
  display: inline-block;
  font-family: var(--serif);
  font-size: 14px;
  font-weight: 700;
  color: var(--accent);
  background-color: rgba(168, 72, 58, 0.1);
  border-radius: 50%;
  width: 32px;
  height: 32px;
  line-height: 32px;
  text-align: center;
  margin-bottom: 16px;
}

.step-title {
  font-family: var(--serif);
  font-size: 17px;
  font-weight: 700;
  color: var(--ink);
  margin-bottom: 8px;
}

.step-desc {
  font-size: 14px;
  color: var(--gray);
  line-height: 1.65;
  margin-bottom: 12px;
}

.step-link {
  font-size: 14px;
  min-height: 44px;
  display: inline-block;
  line-height: 44px;
}

/* FAQ 摘要 */
.faq-section {
  padding: 56px 0;
  border-top: 1px solid var(--line);
}

/* 关于本站摘要 */
.about-summary-section {
  padding: 56px 0;
  border-top: 1px solid var(--line);
}

.about-summary-content {
  background-color: var(--card);
  border-radius: var(--radius);
  padding: 40px;
  box-shadow: var(--shadow);
}

.about-summary-text {
  font-size: 15px;
  color: var(--gray);
  line-height: 1.75;
  margin-bottom: 20px;
  max-width: 720px;
}

.boundary-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 24px;
}

.boundary-list li {
  font-size: 14px;
  color: var(--ink);
  padding-left: 20px;
  position: relative;
  line-height: 1.6;
}

.boundary-list li::before {
  content: "";
  position: absolute;
  left: 4px;
  top: 10px;
  width: 6px;
  height: 6px;
  background-color: var(--accent);
  border-radius: 50%;
}

/* ============================================================
   PAGES — 分类漫游
   ============================================================ */
.page-layout.sidebar-left {
  display: grid;
  grid-template-columns: 240px 1fr;
  gap: 48px;
  align-items: start;
}

.category-toc {
  position: sticky;
  top: 96px;
  background-color: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 24px;
}

.toc-title {
  font-family: var(--serif);
  font-size: 16px;
  font-weight: 700;
  color: var(--ink);
  margin-bottom: 16px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--line);
}

.toc-list {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.toc-list a {
  display: block;
  padding: 8px 12px;
  font-size: 14px;
  color: var(--ink);
  border-radius: 4px;
  min-height: 44px;
  line-height: 28px;
}

.toc-list a:hover {
  color: var(--accent);
  background-color: rgba(168, 72, 58, 0.06);
}

.toc-note {
  font-size: 13px;
  color: var(--gray);
  line-height: 1.6;
  margin-top: 16px;
  padding-top: 16px;
  border-top: 1px solid var(--line);
}

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

.category-group {
  padding: 32px 0;
  border-bottom: 1px solid var(--line);
  scroll-margin-top: 96px;
}

.category-group:first-child {
  padding-top: 0;
}

.category-group:last-child {
  border-bottom: none;
}

.category-title {
  font-family: var(--serif);
  font-size: 22px;
  font-weight: 700;
  color: var(--ink);
  margin-bottom: 8px;
  letter-spacing: 0.01em;
}

.category-desc {
  font-size: 15px;
  color: var(--gray);
  line-height: 1.7;
  margin-bottom: 20px;
  max-width: 640px;
}

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

.cover-card {
  background-color: var(--card);
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--line);
}

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

.cover-card figcaption {
  padding: 12px 16px;
  font-size: 13px;
  color: var(--gray);
  line-height: 1.5;
}

.category-tip {
  font-size: 14px;
  color: var(--gray);
  background-color: rgba(168, 72, 58, 0.04);
  border-left: 3px solid var(--accent);
  padding: 12px 16px;
  line-height: 1.65;
}

.category-tip strong {
  color: var(--ink);
  font-weight: 600;
}

.browse-tip {
  padding: 32px 0;
}

.browse-tip .category-title {
  margin-bottom: 8px;
}

.browse-tip > p {
  font-size: 15px;
  color: var(--gray);
  line-height: 1.7;
  margin-bottom: 16px;
}

.tip-links {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.tip-links a {
  display: inline-block;
  padding: 6px 16px;
  min-height: 44px;
  line-height: 32px;
  font-size: 14px;
  color: var(--ink);
  background-color: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

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

/* ============================================================
   PAGES — 更新速递
   ============================================================ */
/* 新作上架 */
.new-releases {
  padding: 0 0 56px;
}

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

.release-card {
  display: grid;
  grid-template-columns: 200px 1fr;
  background-color: var(--card);
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--line);
}

.release-cover {
  overflow: hidden;
}

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

.release-info {
  padding: 20px 24px;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 8px;
}

.release-title {
  font-family: var(--serif);
  font-size: 18px;
  font-weight: 700;
  color: var(--ink);
  line-height: 1.4;
}

.release-editorial {
  font-size: 14px;
  color: var(--gray);
  line-height: 1.65;
  flex: 1;
}

/* 近期更新 */
.recent-updates {
  padding: 56px 0;
  border-top: 1px solid var(--line);
}

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

.update-row {
  display: flex;
  align-items: center;
  gap: 20px;
  background-color: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 12px 20px;
}

.update-thumb {
  width: 72px;
  height: 96px;
  object-fit: cover;
  border-radius: 4px;
  flex-shrink: 0;
}

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

.update-content .tag {
  margin-bottom: 4px;
}

.update-title {
  font-size: 15px;
  font-weight: 600;
  color: var(--ink);
  line-height: 1.5;
  margin-bottom: 2px;
}

.update-note {
  font-size: 13px;
  color: var(--gray);
  line-height: 1.5;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* 状态图例 */
.status-legend {
  padding: 56px 0;
  border-top: 1px solid var(--line);
}

.legend-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.legend-item {
  display: flex;
  align-items: center;
  gap: 16px;
  background-color: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 16px 20px;
}

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

/* 相关页面 */
.related-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}

.related-card {
  background-color: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 20px;
  transition: border-color var(--transition), box-shadow var(--transition);
}

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

.related-title {
  font-family: var(--serif);
  font-size: 16px;
  font-weight: 700;
  color: var(--ink);
  margin-bottom: 6px;
}

.related-desc {
  font-size: 13px;
  color: var(--gray);
  line-height: 1.6;
}

/* ============================================================
   PAGES — 人气榜单
   ============================================================ */
.rank-tabs {
  margin-bottom: 40px;
}

.tab-list {
  display: flex;
  gap: 8px;
  border-bottom: 1px solid var(--line);
  padding-bottom: 0;
}

.tab-item {
  display: block;
  min-height: 44px;
  padding: 0 24px;
  font-size: 15px;
  color: var(--gray);
  border-bottom: 2px solid transparent;
  line-height: 44px;
  margin-bottom: -1px;
  transition: color var(--transition), border-color var(--transition);
}

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

.tab-item.is-active {
  color: var(--accent);
  border-bottom-color: var(--accent);
  font-weight: 600;
}

.rank-panel {
  display: block;
}

.rank-panel[hidden] {
  display: none;
}

.rank-panel .section-title {
  margin-bottom: 8px;
}

.section-intro {
  font-size: 15px;
  color: var(--gray);
  line-height: 1.7;
  margin-bottom: 28px;
  max-width: 640px;
}

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

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

.rank-item:hover {
  box-shadow: var(--shadow);
}

.rank-num {
  font-family: var(--serif);
  font-size: 26px;
  font-weight: 700;
  color: var(--accent);
  width: 36px;
  flex-shrink: 0;
  text-align: center;
  line-height: 1;
}

.rank-media {
  width: 88px;
  height: 112px;
  border-radius: 4px;
  overflow: hidden;
  flex-shrink: 0;
}

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

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

.rank-title {
  font-family: var(--serif);
  font-size: 17px;
  font-weight: 700;
  color: var(--ink);
  margin-bottom: 4px;
}

.rank-reason {
  font-size: 14px;
  color: var(--gray);
  line-height: 1.6;
}

.rank-note {
  padding: 40px 0;
  border-top: 1px solid var(--line);
  margin-top: 48px;
}

.note-content {
  background-color: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 28px 32px;
}

.note-content p {
  font-size: 14px;
  color: var(--gray);
  line-height: 1.7;
  margin-bottom: 12px;
}

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

/* ============================================================
   PAGES — 阅读指南
   ============================================================ */
.guide-summary {
  margin-bottom: 48px;
}

.summary-card {
  background-color: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 32px 40px;
}

.summary-card-title {
  font-family: var(--serif);
  font-size: 20px;
  font-weight: 700;
  color: var(--ink);
  margin-bottom: 12px;
}

.summary-card-lead {
  font-size: 15px;
  color: var(--gray);
  line-height: 1.75;
  margin-bottom: 20px;
}

.summary-points {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 24px;
}

.summary-points li {
  font-size: 14px;
  color: var(--ink);
  padding-left: 20px;
  position: relative;
  line-height: 1.6;
}

.summary-points li::before {
  content: "";
  position: absolute;
  left: 4px;
  top: 10px;
  width: 6px;
  height: 6px;
  background-color: var(--accent);
  border-radius: 50%;
}

.summary-anchor {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  padding-top: 16px;
  border-top: 1px solid var(--line);
}

.summary-anchor-label {
  font-size: 14px;
  color: var(--gray);
  font-weight: 500;
  margin-right: 4px;
}

.summary-anchor a {
  display: inline-block;
  padding: 4px 14px;
  min-height: 44px;
  line-height: 36px;
  font-size: 14px;
  color: var(--ink);
  background-color: var(--canvas);
  border: 1px solid var(--line);
  border-radius: 20px;
}

.summary-anchor a:hover {
  border-color: var(--accent);
  color: var(--accent);
}

/* 章节目录 */
.guide-toc {
  background-color: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 24px 32px;
  margin-bottom: 48px;
}

.guide-toc .toc-title {
  border-bottom: none;
  margin-bottom: 12px;
  padding-bottom: 0;
}

.guide-toc .toc-list {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 8px;
}

.guide-toc .toc-list a {
  display: block;
  padding: 10px 16px;
  font-size: 14px;
  color: var(--ink);
  background-color: var(--canvas);
  border-radius: var(--radius);
  text-align: center;
  min-height: 44px;
  line-height: 24px;
}

.guide-toc .toc-list a:hover {
  color: var(--accent);
  background-color: rgba(168, 72, 58, 0.06);
}

/* 章节 */
.guide-chapter {
  padding: 40px 0;
  border-bottom: 1px solid var(--line);
  scroll-margin-top: 96px;
}

.guide-chapter:first-of-type {
  padding-top: 0;
}

.guide-chapter:last-of-type {
  border-bottom: none;
}

.chapter-title {
  font-family: var(--serif);
  font-size: 22px;
  font-weight: 700;
  color: var(--ink);
  margin-bottom: 16px;
  letter-spacing: 0.01em;
}

.chapter-text {
  font-size: 15px;
  color: var(--gray);
  line-height: 1.75;
  margin-bottom: 16px;
  max-width: 720px;
}

.chapter-figure {
  margin: 24px 0;
  border-radius: var(--radius);
  overflow: hidden;
  max-width: 720px;
}

.chapter-figure img {
  width: 100%;
  height: 260px;
  object-fit: cover;
}

.chapter-figure figcaption {
  padding: 12px 16px;
  background-color: var(--card);
  border: 1px solid var(--line);
  border-top: none;
  border-radius: 0 0 var(--radius) var(--radius);
}

.chapter-related {
  font-size: 14px;
  color: var(--gray);
  margin-top: 20px;
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  align-items: center;
}

.chapter-related a {
  min-height: 44px;
  display: inline-block;
  line-height: 44px;
  font-weight: 500;
}

/* 指南相关链接 */
.guide-links {
  padding: 40px 0;
}

.links-title {
  font-family: var(--serif);
  font-size: 20px;
  font-weight: 700;
  color: var(--ink);
  margin-bottom: 20px;
}

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

.links-list a {
  display: inline-block;
  padding: 8px 20px;
  min-height: 44px;
  line-height: 28px;
  font-size: 14px;
  color: var(--ink);
  background-color: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

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

/* ============================================================
   PAGES — 常见问题
   ============================================================ */
.faq-section {
  padding: 0 0 48px;
}

.faq-section .section-title {
  margin-bottom: 20px;
}

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

.faq-media {
  padding: 16px 0 48px;
}

.faq-figure {
  border-radius: var(--radius);
  overflow: hidden;
  max-width: 720px;
}

.faq-figure img {
  width: 100%;
  height: 240px;
  object-fit: cover;
}

.faq-figure figcaption {
  padding: 12px 16px;
  background-color: var(--card);
  border: 1px solid var(--line);
  border-top: none;
  border-radius: 0 0 var(--radius) var(--radius);
}

.faq-feedback {
  padding: 40px 0;
  border-top: 1px solid var(--line);
}

.faq-feedback .section-title {
  margin-bottom: 20px;
}

.feedback-note {
  background-color: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 28px 32px;
}

.feedback-note p {
  font-size: 14px;
  color: var(--gray);
  line-height: 1.7;
  margin-bottom: 12px;
}

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

/* ============================================================
   PAGES — 关于本站
   ============================================================ */
.about-section {
  padding: 0 0 56px;
}

.about-section h2 {
  font-family: var(--serif);
  font-size: 22px;
  font-weight: 700;
  color: var(--ink);
  margin-bottom: 16px;
  letter-spacing: 0.01em;
}

.about-content-wrap {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 40px;
  align-items: start;
}

.about-text p {
  font-size: 15px;
  color: var(--gray);
  line-height: 1.75;
  margin-bottom: 16px;
  max-width: 560px;
}

.about-text p:last-child {
  margin-bottom: 0;
}

.about-figure {
  border-radius: var(--radius);
  overflow: hidden;
}

.about-figure img {
  width: 100%;
  height: 260px;
  object-fit: cover;
}

.about-figure figcaption {
  padding: 12px 16px;
  background-color: var(--card);
  border: 1px solid var(--line);
  border-top: none;
  border-radius: 0 0 var(--radius) var(--radius);
}

.section-lead {
  font-size: 15px;
  color: var(--gray);
  line-height: 1.75;
  margin-bottom: 24px;
  max-width: 640px;
}

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

.entry-card {
  background-color: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 24px;
  transition: box-shadow var(--transition);
}

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

.entry-card h3 {
  font-family: var(--serif);
  font-size: 17px;
  font-weight: 700;
  color: var(--ink);
  margin-bottom: 8px;
}

.entry-card p {
  font-size: 14px;
  color: var(--gray);
  line-height: 1.65;
  margin-bottom: 12px;
}

.entry-card a {
  font-size: 14px;
  font-weight: 500;
  min-height: 44px;
  display: inline-block;
  line-height: 44px;
}

.standard-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.standard-item {
  background-color: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 24px 28px;
}

.standard-item h3 {
  font-family: var(--serif);
  font-size: 16px;
  font-weight: 700;
  color: var(--ink);
  margin-bottom: 8px;
}

.standard-item p {
  font-size: 14px;
  color: var(--gray);
  line-height: 1.65;
}

.boundary-wrap {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 40px;
  align-items: start;
}

.boundary-text p {
  font-size: 15px;
  color: var(--gray);
  line-height: 1.75;
  margin-bottom: 16px;
  max-width: 560px;
}

.boundary-text .boundary-list {
  margin-top: 16px;
}

.boundary-figure {
  border-radius: var(--radius);
  overflow: hidden;
}

.boundary-figure img {
  width: 100%;
  height: 240px;
  object-fit: cover;
}

.boundary-figure figcaption {
  padding: 12px 16px;
  background-color: var(--card);
  border: 1px solid var(--line);
  border-top: none;
  border-radius: 0 0 var(--radius) var(--radius);
}

/* ============================================================
   PAGES — 404
   ============================================================ */
.error-main {
  max-width: var(--container);
  width: 100%;
  margin: 0 auto;
  padding: 64px 24px;
}

.error-panel {
  text-align: center;
  max-width: 560px;
  margin: 0 auto;
  padding: 48px 40px;
  background-color: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

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

.error-title {
  font-family: var(--serif);
  font-size: 22px;
  font-weight: 700;
  color: var(--ink);
  margin-bottom: 12px;
}

.error-desc {
  font-size: 15px;
  color: var(--gray);
  line-height: 1.7;
  margin-bottom: 24px;
}

.error-back {
  display: inline-block;
  min-height: 44px;
  line-height: 44px;
  padding: 0 28px;
  background-color: var(--accent);
  color: #fff;
  border-radius: var(--radius);
  font-size: 15px;
  margin-bottom: 32px;
}

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

.error-nav {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 16px;
  padding-top: 24px;
  border-top: 1px solid var(--line);
}

.error-nav a {
  font-size: 14px;
  min-height: 44px;
  display: inline-block;
  line-height: 44px;
  font-weight: 500;
}

/* ============================================================
   RESPONSIVE — 响应式
   ============================================================ */
@media (max-width: 1080px) {
  .footer-inner {
    grid-template-columns: 1fr 1fr 1fr;
    gap: 24px;
  }

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

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

  .hero-figure img {
    height: 300px;
  }

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

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

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

  .page-layout.sidebar-left {
    grid-template-columns: 200px 1fr;
    gap: 32px;
  }

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

  .release-card {
    grid-template-columns: 180px 1fr;
  }

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

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

  .about-content-wrap,
  .boundary-wrap {
    grid-template-columns: 1fr;
    gap: 24px;
  }
}

@media (max-width: 768px) {
  .header-inner {
    height: 64px;
    padding: 0 16px;
  }

  .brand-tagline {
    display: none;
  }

  .nav-toggle {
    display: flex;
  }

  .site-nav {
    position: absolute;
    top: 64px;
    left: 0;
    right: 0;
    background-color: var(--canvas);
    border-bottom: 1px solid var(--line);
    box-shadow: 0 8px 24px rgba(30, 34, 38, 0.08);
  }

  .site-nav .nav-list {
    display: none;
    flex-direction: column;
    padding: 8px 16px 16px;
    gap: 2px;
  }

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

  .site-nav .nav-list a {
    padding: 12px 16px;
    font-size: 15px;
  }

  .site-main.inner-main {
    padding: 0 16px 48px;
  }

  .breadcrumb {
    padding: 16px 0 4px;
    font-size: 13px;
  }

  .page-header {
    padding: 20px 0 24px;
    margin-bottom: 28px;
  }

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

  .page-description {
    font-size: 15px;
  }

  .footer-inner {
    grid-template-columns: 1fr 1fr;
    padding: 32px 16px 24px;
    gap: 20px;
  }

  .footer-bottom {
    padding: 16px;
  }

  .home-main {
    padding: 0 16px 48px;
  }

  .hero-section {
    padding: 32px 0 40px;
  }

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

  .hero-figure img {
    height: 220px;
  }

  .hero-tags {
    gap: 6px;
  }

  .tag-link {
    padding: 4px 12px;
    font-size: 13px;
    min-height: 40px;
    line-height: 32px;
  }

  .cover-wall-section,
  .updates-section,
  .rankings-summary-section,
  .guide-section,
  .faq-section,
  .about-summary-section {
    padding: 40px 0;
  }

  .cover-wall-grid {
    grid-template-columns: 1fr;
  }

  .cover-band img {
    height: 200px;
  }

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

  .update-card img {
    height: 220px;
  }

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

  .ranking-item {
    gap: 16px;
  }

  .ranking-num {
    font-size: 24px;
    width: 32px;
  }

  .about-summary-content {
    padding: 24px;
  }

  /* 分类漫游 */
  .page-layout.sidebar-left {
    display: block;
  }

  .category-toc {
    position: static;
    margin-bottom: 24px;
    padding: 16px;
    overflow-x: auto;
  }

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

  .category-toc .toc-list a {
    white-space: nowrap;
    padding: 8px 16px;
    background-color: var(--canvas);
    border-radius: 20px;
    min-height: 40px;
    line-height: 24px;
    font-size: 13px;
  }

  .toc-note {
    display: none;
  }

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

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

  .category-title {
    font-size: 20px;
  }

  /* 更新速递 */
  .release-grid {
    grid-template-columns: 1fr;
  }

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

  .release-cover img {
    height: 180px;
  }

  .update-row {
    flex-wrap: wrap;
    gap: 12px;
    padding: 12px 16px;
  }

  .update-thumb {
    width: 56px;
    height: 76px;
  }

  .update-note {
    white-space: normal;
    overflow: visible;
    text-overflow: clip;
  }

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

  /* 榜单 */
  .tab-list {
    overflow-x: auto;
  }

  .tab-item {
    padding: 0 16px;
    font-size: 14px;
    white-space: nowrap;
  }

  .rank-item {
    gap: 12px;
    padding: 12px 16px;
  }

  .rank-num {
    font-size: 22px;
    width: 28px;
  }

  .rank-media {
    width: 64px;
    height: 84px;
  }

  .rank-reason {
    font-size: 13px;
  }

  .note-content {
    padding: 20px 24px;
  }

  /* 指南 */
  .summary-card {
    padding: 24px;
  }

  .guide-toc {
    padding: 16px;
  }

  .guide-toc .toc-list {
    grid-template-columns: 1fr 1fr;
    gap: 8px;
  }

  .chapter-text {
    font-size: 14px;
  }

  .chapter-figure img {
    height: 200px;
  }

  /* FAQ */
  .faq-question {
    padding: 14px 16px;
    font-size: 14px;
  }

  .faq-answer {
    padding: 0 16px 16px;
    font-size: 13px;
  }

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

  .feedback-note {
    padding: 20px 24px;
  }

  /* 关于 */
  .about-section {
    padding-bottom: 40px;
  }

  .about-section h2 {
    font-size: 20px;
  }

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

  .entry-card {
    padding: 20px;
  }

  .standard-item {
    padding: 20px;
  }

  .about-figure img,
  .boundary-figure img {
    height: 200px;
  }

  /* 404 */
  .error-main {
    padding: 32px 16px;
  }

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

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

@media (max-width: 480px) {
  .hero-actions {
    flex-direction: column;
    align-items: stretch;
  }

  .hero-actions .btn {
    text-align: center;
  }

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

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

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

  .summary-anchor {
    flex-direction: column;
    align-items: flex-start;
  }

  .summary-anchor a {
    width: 100%;
    text-align: center;
  }

  .rank-item {
    flex-wrap: wrap;
  }

  .rank-info {
    flex-basis: 100%;
  }
}