/* ==========================================================================
   韩漫漫画 hzfju.cn — 全站样式表
   分组：base / layout / components / pages / responsive
   ========================================================================== */

/* --------------------------------------------------------------------------
   base
   -------------------------------------------------------------------------- */

:root {
  --bg-page: #f6f7f9;
  --ink-main: #1b2540;
  --ink-accent: #e0176b;
  --ink-muted: #5a6478;
  --surface: #ffffff;
  --line: #e2e5ec;
  --line-strong: #ccd2de;
  --radius-card: 6px;
  --radius-pill: 999px;
  --shadow-card: 0 1px 2px rgba(27, 37, 64, 0.06);
  --shadow-hover: 0 6px 18px rgba(27, 37, 64, 0.12);
  --shell-width: 1180px;
  --prose-width: 760px;
  --font-sans: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei",
    "Source Han Sans SC", "Noto Sans CJK SC", "WenQuanYi Micro Hei",
    system-ui, -apple-system, "Segoe UI", Roboto, Arial, sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas,
    "Liberation Mono", monospace;
}

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

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

body.site-body {
  margin: 0;
  padding: 0;
  background-color: var(--bg-page);
  color: var(--ink-main);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.8;
  font-weight: 400;
  -webkit-font-smoothing: antialiased;
}

h1,
h2,
h3,
h4 {
  margin: 0;
  color: var(--ink-main);
  font-weight: 700;
  line-height: 1.35;
  letter-spacing: 0;
}

p {
  margin: 0;
}

ul,
ol {
  margin: 0;
  padding: 0;
  list-style: none;
}

a {
  color: var(--ink-main);
  text-decoration: none;
  transition: color 0.18s ease, border-color 0.18s ease, background-color 0.18s ease;
}

a:hover,
a:focus-visible {
  color: var(--ink-accent);
}

a:focus-visible,
button:focus-visible,
summary:focus-visible {
  outline: 2px solid var(--ink-accent);
  outline-offset: 2px;
}

img {
  display: block;
  max-width: 100%;
  height: auto;
  border: 0;
}

figure {
  margin: 0;
}

time {
  font-variant-numeric: tabular-nums;
}

button {
  font-family: inherit;
}

/* --------------------------------------------------------------------------
   layout — 全站骨架：页头 / 导航 / 主容器 / 面包屑 / 页标题 / 页脚
   -------------------------------------------------------------------------- */

.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  background-color: var(--surface);
  border-bottom: 1px solid var(--line);
}

.header-inner {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px 24px;
  max-width: var(--shell-width);
  margin: 0 auto;
  padding: 14px 24px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 21px;
  font-weight: 800;
  line-height: 1.2;
  color: var(--ink-main);
  white-space: nowrap;
}

.brand::before {
  content: "";
  width: 10px;
  height: 22px;
  border-radius: 2px;
  background-color: var(--ink-accent);
}

.brand:hover,
.brand:focus-visible {
  color: var(--ink-accent);
}

.nav-toggle {
  display: none;
  align-items: center;
  justify-content: center;
  min-width: 44px;
  min-height: 44px;
  margin-left: auto;
  padding: 0 12px;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-card);
  background-color: var(--surface);
  color: var(--ink-main);
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
}

.nav-toggle:hover {
  border-color: var(--ink-main);
}

.site-nav {
  margin-left: auto;
}

.nav-list {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 4px 8px;
}

.nav-list li {
  display: block;
}

.nav-list a {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 0 14px;
  border-radius: var(--radius-card);
  font-size: 16px;
  font-weight: 500;
  color: var(--ink-main);
}

.nav-list a:hover,
.nav-list a:focus-visible {
  background-color: #eef0f5;
  color: var(--ink-accent);
}

.nav-list a.is-current {
  color: var(--ink-accent);
  font-weight: 700;
  background-color: #fdeaf2;
}

.site-main {
  display: block;
  max-width: var(--shell-width);
  margin: 0 auto;
  padding: 28px 24px 56px;
}

.home-main {
  padding-top: 24px;
}

.inner-main {
  padding-top: 22px;
}

.breadcrumb {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 18px;
  font-size: 14px;
  color: var(--ink-muted);
}

.breadcrumb a {
  color: var(--ink-muted);
  border-bottom: 1px solid transparent;
}

.breadcrumb a:hover,
.breadcrumb a:focus-visible {
  color: var(--ink-accent);
  border-bottom-color: var(--ink-accent);
}

.breadcrumb-sep {
  color: var(--line-strong);
}

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

.page-header {
  max-width: var(--prose-width);
  margin: 0 0 34px;
  padding-bottom: 20px;
  border-bottom: 2px solid var(--ink-main);
}

.page-description {
  display: inline-block;
  margin-bottom: 10px;
  padding: 2px 10px;
  border-radius: var(--radius-pill);
  background-color: #fdeaf2;
  color: var(--ink-accent);
  font-size: 13px;
  font-weight: 700;
  line-height: 1.6;
}

.page-title {
  font-size: 34px;
  font-weight: 800;
  line-height: 1.28;
  color: var(--ink-main);
}

.page-summary,
.page-lead {
  margin-top: 12px;
  font-size: 16px;
  line-height: 1.85;
  color: var(--ink-muted);
}

.site-footer {
  background-color: var(--ink-main);
  color: #d7dbe6;
}

.footer-inner {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 28px 32px;
  max-width: var(--shell-width);
  margin: 0 auto;
  padding: 40px 24px 26px;
}

.footer-col {
  min-width: 0;
}

.footer-title {
  margin-bottom: 12px;
  font-size: 15px;
  font-weight: 700;
  color: #ffffff;
}

.footer-col p {
  font-size: 14px;
  line-height: 1.85;
  color: #b9c0d0;
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-top: 10px;
}

.footer-links a {
  display: inline-block;
  padding: 3px 0;
  font-size: 14px;
  color: #d7dbe6;
}

.footer-links a:hover,
.footer-links a:focus-visible {
  color: #ffffff;
  text-decoration: underline;
}

.footer-copy {
  max-width: var(--shell-width);
  margin: 0 auto;
  padding: 16px 24px 30px;
  border-top: 1px solid rgba(255, 255, 255, 0.14);
  font-size: 13px;
  color: #98a1b5;
}

/* 内页两栏：主内容在前，aside 在后 */
.page-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 300px;
  gap: 34px;
  align-items: start;
}

.page-layout > .section,
.page-layout > .field-guide,
.page-layout > .boundary,
.page-layout > .reading-path,
.page-layout > .faq,
.page-layout > .related {
  min-width: 0;
}

.sidebar-left .page-layout {
  grid-template-columns: 300px minmax(0, 1fr);
}

.sidebar-left .page-layout > .topic-tree {
  order: -1;
}

/* --------------------------------------------------------------------------
   components — 通用区块头 / 卡片 / 列表 / 步骤 / 表格 / FAQ
   -------------------------------------------------------------------------- */

.section-head {
  margin-bottom: 22px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--line);
}

.section-head h2,
.section-title {
  position: relative;
  padding-left: 16px;
  font-size: 24px;
  font-weight: 800;
  line-height: 1.4;
}

.section-head h2::before,
.section-title::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.32em;
  width: 6px;
  height: 0.86em;
  border-radius: 2px;
  background-color: var(--ink-accent);
}

.section-desc,
.section-lead,
.section-intro {
  margin-top: 10px;
  max-width: var(--prose-width);
  font-size: 15px;
  line-height: 1.85;
  color: var(--ink-muted);
}

.sub-title {
  margin-bottom: 14px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--line);
  font-size: 18px;
  font-weight: 700;
}

.section-more,
.panel-more {
  margin-top: 16px;
  font-size: 15px;
}

.section-more a,
.panel-more a {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  min-height: 44px;
  font-weight: 700;
  color: var(--ink-accent);
  border-bottom: 2px solid transparent;
}

.section-more a:hover,
.section-more a:focus-visible,
.panel-more a:hover,
.panel-more a:focus-visible {
  border-bottom-color: var(--ink-accent);
}

/* 封面条目卡 */
.cover-card {
  display: flex;
  flex-direction: column;
  min-width: 0;
  padding: 10px;
  background-color: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-card);
  box-shadow: var(--shadow-card);
  transition: transform 0.18s ease, box-shadow 0.18s ease, border-color 0.18s ease;
}

.cover-card:hover {
  transform: translateY(-3px);
  border-color: var(--line-strong);
  box-shadow: var(--shadow-hover);
}

.cover-card img {
  width: 100%;
  height: 168px;
  object-fit: cover;
  border-radius: 4px;
  background-color: #e9ecf2;
}

.cover-card h3,
.cover-card h4 {
  margin-top: 10px;
  font-size: 16px;
  font-weight: 700;
  line-height: 1.45;
}

.cover-meta {
  margin-top: 6px;
  font-family: var(--font-mono);
  font-size: 13px;
  line-height: 1.7;
  color: var(--ink-muted);
}

/* 更新记录行（首页侧栏 / 题材分类对照） */
.update-list {
  display: block;
}

.update-row {
  display: grid;
  grid-template-columns: 92px minmax(0, 1fr);
  gap: 4px 12px;
  padding: 11px 0;
  border-bottom: 1px dashed var(--line);
}

.update-row:last-child {
  border-bottom: 0;
}

.update-date {
  grid-row: span 2;
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 700;
  line-height: 1.7;
  color: var(--ink-accent);
}

.update-name {
  font-size: 15px;
  font-weight: 600;
  line-height: 1.6;
  color: var(--ink-main);
}

.update-range {
  font-family: var(--font-mono);
  font-size: 13px;
  line-height: 1.7;
  color: var(--ink-muted);
}

/* 位次条目（首页榜单列） */
.ranking-list {
  display: block;
}

.rank-item {
  display: grid;
  grid-template-columns: 40px minmax(0, 1fr);
  gap: 2px 12px;
  padding: 11px 0;
  border-bottom: 1px dashed var(--line);
}

.rank-item:last-child {
  border-bottom: 0;
}

.rank-no {
  grid-row: span 2;
  display: inline-flex;
  align-items: flex-start;
  justify-content: flex-start;
  font-family: var(--font-mono);
  font-size: 20px;
  font-weight: 800;
  line-height: 1.3;
  color: var(--ink-accent);
}

.rank-name {
  font-size: 15px;
  font-weight: 700;
  line-height: 1.6;
}

.rank-reason {
  font-size: 14px;
  line-height: 1.75;
  color: var(--ink-muted);
}

/* 步骤条（首页查阅路径） */
.path-steps {
  display: block;
}

.path-step {
  display: grid;
  grid-template-columns: 34px minmax(0, 1fr);
  gap: 6px 10px;
  padding: 12px 0;
  border-bottom: 1px dashed var(--line);
}

.path-step:last-child {
  border-bottom: 0;
}

.step-no {
  grid-row: span 2;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border-radius: var(--radius-pill);
  background-color: var(--ink-main);
  color: #ffffff;
  font-family: var(--font-mono);
  font-size: 14px;
  font-weight: 700;
}

.path-step p {
  font-size: 14px;
  line-height: 1.8;
  color: var(--ink-muted);
}

.path-step a {
  justify-self: start;
  font-size: 14px;
  font-weight: 600;
  color: var(--ink-accent);
  border-bottom: 1px solid transparent;
}

.path-step a:hover,
.path-step a:focus-visible {
  border-bottom-color: var(--ink-accent);
}

/* 相关入口链接组 */
.related-links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.related-links a {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 0 18px;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-card);
  background-color: var(--surface);
  font-size: 15px;
  font-weight: 600;
}

.related-links a:hover,
.related-links a:focus-visible {
  border-color: var(--ink-accent);
  color: var(--ink-accent);
}

/* 字段对照表（更新页 / 阅读说明页） */
.field-table {
  margin: 0;
  border-top: 1px solid var(--line);
}

.field-row {
  display: grid;
  grid-template-columns: 180px minmax(0, 1fr);
  gap: 6px 20px;
  padding: 12px 0;
  border-bottom: 1px solid var(--line);
}

.field-label,
.field-name {
  font-size: 15px;
  font-weight: 700;
  color: var(--ink-main);
}

.field-row dd,
.field-desc {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--ink-muted);
}

/* --------------------------------------------------------------------------
   pages — 首页
   -------------------------------------------------------------------------- */

/* 首屏区 */
.hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1.05fr);
  gap: 34px;
  align-items: start;
  padding-bottom: 34px;
  margin-bottom: 34px;
  border-bottom: 2px solid var(--ink-main);
}

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

.hero-kicker {
  display: inline-block;
  margin-bottom: 14px;
  padding: 3px 12px;
  border-radius: var(--radius-pill);
  background-color: #fdeaf2;
  color: var(--ink-accent);
  font-size: 13px;
  font-weight: 700;
}

.hero-title {
  font-size: 36px;
  font-weight: 800;
  line-height: 1.26;
  color: var(--ink-main);
}

.hero-summary {
  margin-top: 16px;
  max-width: 560px;
  font-size: 16px;
  line-height: 1.9;
  color: var(--ink-muted);
}

.hero-paths {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 22px;
}

.path-link {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 0 18px;
  border: 1px solid var(--ink-main);
  border-radius: var(--radius-card);
  background-color: var(--surface);
  font-size: 15px;
  font-weight: 700;
}

.path-link:hover,
.path-link:focus-visible {
  background-color: var(--ink-main);
  color: #ffffff;
}

.hero-media {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: 14px;
  min-width: 0;
}

.hero-figure {
  grid-column: 1 / -1;
  min-width: 0;
}

.hero-figure img {
  width: 100%;
  height: 260px;
  object-fit: cover;
  border-radius: var(--radius-card);
  background-color: #e9ecf2;
}

.hero-figure figcaption {
  margin-top: 8px;
  font-size: 13px;
  line-height: 1.7;
  color: var(--ink-muted);
}

.hero-covers {
  display: contents;
}

.hero-covers .cover-card img {
  height: 150px;
}

/* 题材方向总览 */
.genres {
  margin-bottom: 38px;
}

.genre-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 18px;
}

.genre-col {
  min-width: 0;
  padding: 18px;
  background-color: var(--surface);
  border: 1px solid var(--line);
  border-left: 4px solid var(--ink-accent);
  border-radius: var(--radius-card);
  box-shadow: var(--shadow-card);
}

.genre-col h3 {
  font-size: 18px;
  font-weight: 800;
}

.genre-col p {
  margin-top: 8px;
  font-size: 14px;
  line-height: 1.85;
  color: var(--ink-muted);
}

.genre-note {
  padding-top: 10px;
  border-top: 1px dashed var(--line);
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--ink-main);
}

/* 主推封面条目与最近更新并列区 */
.featured-updates {
  margin-bottom: 38px;
}

.featured-layout {
  display: grid;
  grid-template-columns: minmax(0, 2fr) minmax(0, 1fr);
  gap: 30px;
  align-items: start;
}

.featured-covers {
  min-width: 0;
}

.cover-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.update-panel {
  min-width: 0;
  padding: 18px;
  background-color: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-card);
  box-shadow: var(--shadow-card);
}

/* 人气榜单与查阅路径 */
.ranking-path {
  margin-bottom: 38px;
}

.ranking-layout {
  display: grid;
  grid-template-columns: minmax(0, 2fr) minmax(0, 1fr);
  gap: 30px;
  align-items: start;
}

.ranking-col,
.path-col {
  min-width: 0;
  padding: 18px;
  background-color: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-card);
  box-shadow: var(--shadow-card);
}

/* 站内栏目索引 */
.site-index .index-grid {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 16px;
}

.index-col {
  min-width: 0;
  padding: 16px;
  background-color: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-card);
  box-shadow: var(--shadow-card);
  transition: transform 0.18s ease, box-shadow 0.18s ease, border-color 0.18s ease;
}

.index-col:hover {
  transform: translateY(-3px);
  border-color: var(--line-strong);
  box-shadow: var(--shadow-hover);
}

.index-col a {
  display: inline-block;
  min-height: 30px;
  font-size: 16px;
  font-weight: 700;
  color: var(--ink-main);
}

.index-col a:hover,
.index-col a:focus-visible {
  color: var(--ink-accent);
}

.index-col p {
  margin-top: 8px;
  font-size: 14px;
  line-height: 1.8;
  color: var(--ink-muted);
}

/* --------------------------------------------------------------------------
   pages — 题材分类
   -------------------------------------------------------------------------- */

.page-genres .genre-groups {
  margin-bottom: 38px;
}

.genre-group {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 240px;
  gap: 10px 28px;
  align-items: start;
  padding: 22px 0;
  border-bottom: 1px solid var(--line);
}

.genre-group:first-of-type {
  padding-top: 8px;
}

.genre-name {
  grid-column: 1;
  font-size: 21px;
  font-weight: 800;
}

.genre-trait {
  grid-column: 1;
  font-size: 15px;
  line-height: 1.85;
  color: var(--ink-muted);
}

.genre-rep-note {
  grid-column: 1;
  padding-top: 10px;
  border-top: 1px dashed var(--line);
  font-size: 14px;
  line-height: 1.8;
  color: var(--ink-main);
}

.genre-cover {
  grid-column: 2;
  grid-row: 1 / span 3;
  min-width: 0;
}

.genre-cover img {
  width: 100%;
  height: 190px;
  object-fit: cover;
  border-radius: var(--radius-card);
  background-color: #e9ecf2;
}

.genre-cover figcaption {
  margin-top: 8px;
  font-size: 13px;
  line-height: 1.7;
  color: var(--ink-muted);
}

.page-genres .direction-updates {
  margin-bottom: 38px;
}

.direction-table {
  border-top: 1px solid var(--line);
}

.direction-row {
  display: grid;
  grid-template-columns: 200px minmax(0, 1fr);
  gap: 4px 24px;
  padding: 16px 0;
  border-bottom: 1px solid var(--line);
}

.direction-cell {
  min-width: 0;
}

.direction-label {
  font-size: 17px;
  font-weight: 700;
}

.update-line {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 14px;
  padding: 4px 0;
  font-size: 14px;
  line-height: 1.8;
}

.update-line .update-date {
  font-family: var(--font-mono);
  font-weight: 700;
  color: var(--ink-accent);
}

.update-line .update-work {
  font-weight: 600;
  color: var(--ink-main);
}

.update-line .update-range {
  font-family: var(--font-mono);
  color: var(--ink-muted);
}

/* --------------------------------------------------------------------------
   pages — 最近更新
   -------------------------------------------------------------------------- */

.page-updates .update-list {
  margin-bottom: 38px;
}

.update-group {
  margin-bottom: 26px;
}

.update-group .update-date {
  display: inline-block;
  margin-bottom: 10px;
  padding: 3px 12px;
  border-radius: var(--radius-pill);
  background-color: #fdeaf2;
  color: var(--ink-accent);
  font-family: var(--font-mono);
  font-size: 14px;
  font-weight: 700;
}

.update-rows {
  border-top: 1px solid var(--line);
}

.page-updates .update-row {
  display: grid;
  grid-template-columns: 84px minmax(0, 1fr);
  gap: 14px;
  align-items: start;
  padding: 14px 0;
  border-bottom: 1px solid var(--line);
}

.update-thumb {
  min-width: 0;
  margin: 0;
}

.update-thumb img {
  width: 84px;
  height: 84px;
  object-fit: cover;
  border-radius: 4px;
  background-color: #e9ecf2;
}

.update-body {
  min-width: 0;
}

.update-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 16px;
  font-size: 14px;
  line-height: 1.8;
}

.update-meta .update-name {
  font-size: 16px;
  font-weight: 700;
  color: var(--ink-main);
}

.update-meta .update-range {
  font-family: var(--font-mono);
  color: var(--ink-muted);
}

.page-updates .field-notes {
  margin-bottom: 38px;
}

.page-updates .field-table {
  max-width: var(--prose-width);
}

/* --------------------------------------------------------------------------
   pages — 人气榜单
   -------------------------------------------------------------------------- */

.page-ranking .ranking-list-section {
  margin-bottom: 38px;
}

.page-ranking .ranking-list {
  border-top: 2px solid var(--ink-main);
}

.ranking-item {
  display: grid;
  grid-template-columns: 54px 96px minmax(0, 1fr);
  gap: 16px;
  align-items: start;
  padding: 18px 0;
  border-bottom: 1px solid var(--line);
}

.rank-number {
  font-family: var(--font-mono);
  font-size: 28px;
  font-weight: 800;
  line-height: 1.2;
  color: var(--ink-accent);
}

.rank-cover {
  min-width: 0;
  margin: 0;
}

.rank-cover img {
  width: 96px;
  height: 120px;
  object-fit: cover;
  border-radius: 4px;
  background-color: #e9ecf2;
}

.rank-body {
  min-width: 0;
}

.rank-body .rank-name {
  font-size: 18px;
  font-weight: 800;
}

.rank-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 14px;
  margin-top: 6px;
  font-family: var(--font-mono);
  font-size: 13px;
  line-height: 1.7;
  color: var(--ink-muted);
}

.rank-genre {
  padding: 1px 10px;
  border-radius: var(--radius-pill);
  background-color: #eef0f5;
  color: var(--ink-main);
}

.rank-status {
  padding: 1px 10px;
  border-radius: var(--radius-pill);
  background-color: #fdeaf2;
  color: var(--ink-accent);
}

.rank-body .rank-reason {
  margin-top: 8px;
  font-size: 15px;
  line-height: 1.85;
  color: var(--ink-muted);
}

.page-ranking .ranking-notes {
  margin-bottom: 38px;
}

.notes-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 24px;
}

.notes-col {
  min-width: 0;
  padding: 18px;
  background-color: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-card);
  box-shadow: var(--shadow-card);
}

.notes-subtitle {
  margin-bottom: 10px;
  font-size: 17px;
  font-weight: 700;
}

.notes-list li {
  position: relative;
  padding: 6px 0 6px 18px;
  font-size: 15px;
  line-height: 1.8;
  color: var(--ink-muted);
}

.notes-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 1.05em;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background-color: var(--ink-accent);
}

.related-section {
  margin-bottom: 8px;
}

.related-list {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.related-item {
  min-width: 0;
  padding: 18px;
  background-color: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-card);
  box-shadow: var(--shadow-card);
}

.related-item a {
  display: inline-block;
  min-height: 30px;
  font-size: 16px;
  font-weight: 700;
}

.related-item a:hover,
.related-item a:focus-visible {
  color: var(--ink-accent);
}

.related-item p {
  margin-top: 8px;
  font-size: 14px;
  line-height: 1.8;
  color: var(--ink-muted);
}

/* --------------------------------------------------------------------------
   pages — 阅读说明
   -------------------------------------------------------------------------- */

.page-guide .field-guide,
.page-guide .boundary,
.page-guide .reading-path,
.page-guide .faq,
.page-guide .related {
  margin-bottom: 34px;
}

.guide-figure {
  margin: 0 0 20px;
  min-width: 0;
}

.guide-figure img {
  width: 100%;
  max-width: 520px;
  height: 220px;
  object-fit: cover;
  border-radius: var(--radius-card);
  background-color: #e9ecf2;
}

.guide-figure figcaption {
  margin-top: 8px;
  font-size: 13px;
  line-height: 1.7;
  color: var(--ink-muted);
}

.page-guide .field-table {
  border-top: 1px solid var(--line);
}

.page-guide .field-row {
  display: grid;
  grid-template-columns: 160px minmax(0, 1fr);
  gap: 6px 20px;
  padding: 12px 0;
  border-bottom: 1px solid var(--line);
}

.page-guide .field-head {
  border-bottom: 2px solid var(--ink-main);
  font-size: 14px;
  font-weight: 700;
  color: var(--ink-main);
}

.page-guide .field-head .field-name,
.page-guide .field-head .field-desc {
  font-size: 14px;
  font-weight: 700;
  color: var(--ink-main);
}

.boundary-columns {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 22px;
}

.boundary-col {
  min-width: 0;
  padding: 18px;
  background-color: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-card);
  box-shadow: var(--shadow-card);
}

.boundary-subtitle {
  margin-bottom: 10px;
  font-size: 17px;
  font-weight: 700;
}

.boundary-include .boundary-subtitle {
  color: var(--ink-main);
}

.boundary-exclude .boundary-subtitle {
  color: var(--ink-accent);
}

.boundary-list li {
  position: relative;
  padding: 6px 0 6px 20px;
  font-size: 15px;
  line-height: 1.8;
  color: var(--ink-muted);
}

.boundary-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 1.05em;
  width: 8px;
  height: 8px;
  border-radius: 2px;
}

.boundary-include .boundary-list li::before {
  background-color: var(--ink-main);
}

.boundary-exclude .boundary-list li::before {
  background-color: var(--ink-accent);
}

.page-guide .path-steps {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.page-guide .path-step {
  display: block;
  padding: 18px;
  background-color: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-card);
  box-shadow: var(--shadow-card);
}

.step-index {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 30px;
  height: 30px;
  margin-bottom: 10px;
  border-radius: var(--radius-pill);
  background-color: var(--ink-main);
  color: #ffffff;
  font-family: var(--font-mono);
  font-size: 14px;
  font-weight: 700;
}

.step-title {
  font-size: 17px;
  font-weight: 700;
}

.step-text {
  margin-top: 8px;
  font-size: 14px;
  line-height: 1.85;
  color: var(--ink-muted);
}

.step-link {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  margin-top: 10px;
  font-size: 14px;
  font-weight: 700;
  color: var(--ink-accent);
  border-bottom: 1px solid transparent;
}

.step-link:hover,
.step-link:focus-visible {
  border-bottom-color: var(--ink-accent);
}

.faq-item {
  margin-bottom: 10px;
  border: 1px solid var(--line);
  border-radius: var(--radius-card);
  background-color: var(--surface);
  box-shadow: var(--shadow-card);
}

.faq-question {
  display: flex;
  align-items: center;
  min-height: 52px;
  padding: 12px 18px;
  font-size: 16px;
  font-weight: 700;
  color: var(--ink-main);
  cursor: pointer;
  list-style: none;
}

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

.faq-question::after {
  content: "+";
  margin-left: auto;
  padding-left: 14px;
  font-family: var(--font-mono);
  font-size: 20px;
  font-weight: 700;
  color: var(--ink-accent);
}

.faq-item[open] .faq-question {
  border-bottom: 1px dashed var(--line);
}

.faq-item[open] .faq-question::after {
  content: "–";
}

.faq-answer {
  padding: 14px 18px 16px;
  font-size: 15px;
  line-height: 1.85;
  color: var(--ink-muted);
}

.topic-tree {
  min-width: 0;
  padding: 18px;
  background-color: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-card);
  box-shadow: var(--shadow-card);
}

.topic-tree-list {
  display: block;
}

.topic-tree-list li {
  border-bottom: 1px dashed var(--line);
}

.topic-tree-list li:last-child {
  border-bottom: 0;
}

.topic-tree-list a {
  display: flex;
  align-items: center;
  min-height: 44px;
  font-size: 15px;
  font-weight: 600;
  color: var(--ink-main);
}

.topic-tree-list a:hover,
.topic-tree-list a:focus-visible {
  color: var(--ink-accent);
}

.topic-tree-note {
  margin-top: 12px;
  padding-top: 12px;
  border-top: 1px solid var(--line);
  font-size: 13px;
  line-height: 1.8;
  color: var(--ink-muted);
}

/* --------------------------------------------------------------------------
   pages — 404
   -------------------------------------------------------------------------- */

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

.error-panel {
  max-width: 640px;
  width: 100%;
  margin: 40px 0;
  padding: 34px 30px;
  background-color: var(--surface);
  border: 1px solid var(--line);
  border-top: 4px solid var(--ink-accent);
  border-radius: var(--radius-card);
  box-shadow: var(--shadow-card);
}

.error-code {
  font-family: var(--font-mono);
  font-size: 44px;
  font-weight: 800;
  line-height: 1.1;
  color: var(--ink-accent);
}

.error-panel h1 {
  margin-top: 10px;
  font-size: 28px;
  font-weight: 800;
}

.error-text {
  margin-top: 12px;
  font-size: 16px;
  line-height: 1.85;
  color: var(--ink-muted);
}

.error-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 24px;
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0 20px;
  border: 1px solid var(--ink-main);
  border-radius: var(--radius-card);
  background-color: var(--surface);
  font-size: 15px;
  font-weight: 700;
  color: var(--ink-main);
}

.btn-primary:hover,
.btn-primary:focus-visible {
  background-color: var(--ink-main);
  color: #ffffff;
}

/* --------------------------------------------------------------------------
   responsive
   -------------------------------------------------------------------------- */

@media (max-width: 1024px) {
  .genre-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .site-index .index-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-layout {
    grid-template-columns: minmax(0, 1fr) 270px;
    gap: 26px;
  }

  .sidebar-left .page-layout {
    grid-template-columns: 270px minmax(0, 1fr);
  }
}

@media (max-width: 900px) {
  .hero,
  .featured-layout,
  .ranking-layout,
  .page-layout,
  .sidebar-left .page-layout {
    grid-template-columns: minmax(0, 1fr);
  }

  .sidebar-left .page-layout > .topic-tree {
    order: 0;
  }

  .genre-group {
    grid-template-columns: minmax(0, 1fr);
  }

  .genre-cover {
    grid-column: 1;
    grid-row: auto;
  }

  .page-guide .path-steps {
    grid-template-columns: minmax(0, 1fr);
  }

  .related-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .footer-inner {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 768px) {
  .header-inner {
    padding: 12px 16px;
    gap: 10px 16px;
  }

  .nav-toggle {
    display: inline-flex;
  }

  .site-nav {
    flex-basis: 100%;
    margin-left: 0;
  }

  .nav-list {
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 2px;
    padding: 8px 0 4px;
    border-top: 1px solid var(--line);
  }

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

  .nav-list a {
    width: 100%;
    padding: 0 12px;
    font-size: 16px;
  }

  .site-main {
    padding: 20px 16px 44px;
  }

  .page-header {
    margin-bottom: 26px;
    padding-bottom: 16px;
  }

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

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

  .section-head h2,
  .section-title {
    font-size: 20px;
  }

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

  .cover-card img {
    height: 150px;
  }

  .hero-covers .cover-card img {
    height: 140px;
  }

  .cover-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 14px;
  }

  .genre-grid {
    grid-template-columns: minmax(0, 1fr);
  }

  .direction-row {
    grid-template-columns: minmax(0, 1fr);
    gap: 8px;
  }

  .ranking-item {
    grid-template-columns: 40px 76px minmax(0, 1fr);
    gap: 12px;
  }

  .rank-number {
    font-size: 22px;
  }

  .rank-cover img {
    width: 76px;
    height: 96px;
  }

  .notes-grid,
  .boundary-columns,
  .related-list {
    grid-template-columns: minmax(0, 1fr);
  }

  .page-guide .field-row,
  .page-updates .field-row {
    grid-template-columns: 140px minmax(0, 1fr);
    gap: 6px 14px;
  }

  .site-index .index-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .footer-inner {
    padding: 30px 16px 20px;
  }

  .footer-copy {
    padding: 14px 16px 24px;
  }
}

@media (max-width: 480px) {
  .header-inner {
    padding: 10px 14px;
  }

  .brand {
    font-size: 19px;
  }

  .site-main {
    padding: 18px 14px 40px;
  }

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

  .hero-title {
    font-size: 23px;
  }

  .hero-paths {
    gap: 8px;
  }

  .path-link {
    padding: 0 14px;
    font-size: 14px;
  }

  .hero-media {
    grid-template-columns: minmax(0, 1fr);
  }

  .hero-figure {
    grid-column: 1;
  }

  .hero-figure img {
    height: 176px;
  }

  .cover-grid {
    grid-template-columns: minmax(0, 1fr);
  }

  .cover-card img,
  .hero-covers .cover-card img {
    height: 160px;
  }

  .update-row {
    grid-template-columns: minmax(0, 1fr);
  }

  .update-date {
    grid-row: auto;
  }

  .page-updates .update-row {
    grid-template-columns: 64px minmax(0, 1fr);
    gap: 12px;
  }

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

  .ranking-item {
    grid-template-columns: 34px 64px minmax(0, 1fr);
    gap: 10px;
  }

  .rank-number {
    font-size: 19px;
  }

  .rank-cover img {
    width: 64px;
    height: 82px;
  }

  .page-guide .field-row,
  .page-updates .field-row {
    grid-template-columns: minmax(0, 1fr);
    gap: 4px;
  }

  .site-index .index-grid {
    grid-template-columns: minmax(0, 1fr);
  }

  .related-links {
    flex-direction: column;
    align-items: stretch;
  }

  .related-links a {
    justify-content: center;
  }

  .error-panel {
    padding: 26px 20px;
  }

  .error-code {
    font-size: 36px;
  }

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

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

  .btn-primary {
    width: 100%;
  }

  .footer-inner {
    grid-template-columns: minmax(0, 1fr);
    gap: 22px;
  }
}

/* 滚动进入的淡入增强：初始可见，仅在脚本可用时叠加动效 */
.reveal-ready .reveal {
  animation: reveal-in 0.5s ease both;
}

@keyframes reveal-in {
  from {
    transform: translateY(10px);
  }
  to {
    transform: translateY(0);
  }
}

@media (prefers-reduced-motion: reduce) {
  * {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}