/* ==========================================================================
   yy漫画 · 全站样式表
   分组：base / layout / components / pages / responsive
   ========================================================================== */

/* --------------------------------------------------------------------------
   base · 变量与全局
   -------------------------------------------------------------------------- */
:root {
  --bg: #F7F5F1;
  --surface: #FFFFFF;
  --ink: #1F1B16;
  --ink-soft: #6B625A;
  --gold: #A8874F;
  --gold-soft: #C7AE80;
  --line: #E4DED4;
  --green: #2F6B4F;
  --radius: 6px;
  --radius-sm: 4px;
  --shell: 1180px;
  --gutter: 24px;
  --font-title: "Songti SC", "Noto Serif SC", "Source Han Serif SC", Georgia, serif;
  --font-body: "PingFang SC", "Noto Sans SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  --shadow-soft: 0 1px 2px rgba(31, 27, 22, 0.05);
  --shadow-lift: 0 6px 18px rgba(31, 27, 22, 0.09);
}

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

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

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.7;
}

h1, h2, h3, h4, h5 {
  font-family: var(--font-title);
  font-weight: 600;
  color: var(--ink);
  margin: 0;
  line-height: 1.35;
}

p {
  margin: 0;
}

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

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

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

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

figure {
  margin: 0;
}

button {
  font: inherit;
  color: inherit;
  background: none;
  border: 0;
  cursor: pointer;
}

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

/* --------------------------------------------------------------------------
   layout · 全站骨架：页头 / 导航 / 主容器 / 页脚
   -------------------------------------------------------------------------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  background: rgba(247, 245, 241, 0.96);
  border-bottom: 1px solid var(--line);
  backdrop-filter: saturate(140%) blur(6px);
}

.header-inner {
  width: 100%;
  max-width: var(--shell);
  margin: 0 auto;
  padding: 14px var(--gutter);
  display: flex;
  align-items: center;
  gap: 24px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  flex: 0 0 auto;
}

.brand-mark {
  width: 26px;
  height: 26px;
  border-radius: var(--radius-sm);
  background: var(--gold);
  box-shadow: inset 0 0 0 4px rgba(255, 255, 255, 0.55);
}

.brand-name {
  font-family: var(--font-title);
  font-size: 20px;
  font-weight: 600;
  color: var(--ink);
  letter-spacing: 0;
}

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

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

.nav-item > a {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 0 14px;
  border-radius: var(--radius-sm);
  font-size: 15px;
  color: var(--ink-soft);
  transition: background-color 0.18s ease, color 0.18s ease;
}

.nav-item > a:hover {
  background: #EFEBE3;
  color: var(--ink);
}

.nav-item.is-current > a,
.nav-item > a.is-current {
  color: var(--gold);
  font-weight: 600;
}

.nav-toggle {
  display: none;
  margin-left: auto;
  width: 44px;
  height: 44px;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: var(--surface);
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
}

.nav-toggle-bar {
  display: block;
  width: 18px;
  height: 2px;
  background: var(--ink);
}

.site-main {
  width: 100%;
  max-width: var(--shell);
  margin: 0 auto;
  padding: 32px var(--gutter) 56px;
}

.site-main > section + section {
  margin-top: 56px;
}

/* 内页统一骨架 */
.inner-main {
  padding-top: 24px;
}

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

.breadcrumb a {
  color: var(--ink-soft);
  text-decoration: underline;
  text-decoration-color: var(--line);
  text-underline-offset: 3px;
}

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

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

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

.page-header {
  padding-bottom: 22px;
  border-bottom: 1px solid var(--line);
  margin-bottom: 40px;
}

.page-title {
  font-size: 34px;
  font-weight: 600;
  color: var(--ink);
  margin-bottom: 12px;
}

.page-description {
  max-width: 780px;
  font-size: 16px;
  color: var(--ink-soft);
}

/* 页脚 */
.site-footer {
  background: #F1EDE6;
  border-top: 1px solid var(--line);
  margin-top: 24px;
}

.footer-inner {
  width: 100%;
  max-width: var(--shell);
  margin: 0 auto;
  padding: 44px var(--gutter) 28px;
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 32px;
}

.footer-about {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.footer-brand .brand-name {
  font-size: 18px;
}

.footer-desc {
  font-size: 14px;
  color: var(--ink-soft);
  max-width: 320px;
}

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

.footer-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.footer-list a {
  font-size: 14px;
  color: var(--ink-soft);
  display: inline-block;
  min-height: 24px;
}

.footer-list a:hover {
  color: var(--gold);
}

.footer-bottom {
  width: 100%;
  max-width: var(--shell);
  margin: 0 auto;
  padding: 16px var(--gutter) 26px;
  border-top: 1px solid var(--line);
}

.footer-copy {
  font-size: 13px;
  color: var(--ink-soft);
}

/* --------------------------------------------------------------------------
   components · 通用模块
   -------------------------------------------------------------------------- */
.section-head {
  margin-bottom: 20px;
}

.section-title {
  font-size: 23px;
  font-weight: 600;
  margin-bottom: 8px;
}

.section-lead,
.section-intro {
  font-size: 15px;
  color: var(--ink-soft);
  max-width: 760px;
}

.section-intro {
  margin-bottom: 22px;
}

.column-more {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  margin-top: 14px;
  font-size: 15px;
  font-weight: 600;
  color: var(--gold);
}

.column-more::after {
  content: "→";
  margin-left: 6px;
}

.column-more:hover {
  color: var(--ink);
}

.path-link {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 0 16px;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: var(--surface);
  font-size: 15px;
  color: var(--ink);
  transition: border-color 0.18s ease, color 0.18s ease, box-shadow 0.18s ease;
}

.path-link:hover {
  border-color: var(--gold-soft);
  color: var(--gold);
  box-shadow: var(--shadow-soft);
}

/* --------------------------------------------------------------------------
   pages · 首页
   -------------------------------------------------------------------------- */
.site-factbar {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  padding: 12px 18px;
  margin-bottom: 32px;
}

.site-factbar p {
  font-size: 14px;
  color: var(--ink-soft);
}

.home-hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 0.95fr);
  gap: 36px;
  align-items: start;
  padding-bottom: 8px;
}

.hero-copy {
  padding-top: 8px;
}

.hero-title {
  font-size: 38px;
  font-weight: 600;
  margin-bottom: 16px;
}

.hero-lead {
  font-size: 16px;
  color: var(--ink-soft);
  max-width: 520px;
  margin-bottom: 22px;
}

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

.hero-visual {
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--surface);
  border: 1px solid var(--line);
}

.hero-visual img {
  width: 100%;
  aspect-ratio: 16 / 10;
  object-fit: cover;
}

.hero-visual-caption {
  padding: 10px 16px;
  font-size: 13px;
  color: var(--ink-soft);
  border-top: 1px solid var(--line);
}

.hero-covers {
  grid-column: 1 / -1;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
  margin-top: 4px;
}

.cover-thumb {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  overflow: hidden;
  transition: transform 0.18s ease, box-shadow 0.18s ease;
}

.cover-thumb:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lift);
}

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

.cover-thumb-name {
  display: block;
  padding: 10px 12px;
  font-size: 14px;
  color: var(--ink);
}

/* 题材方向总览 */
.genre-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 20px;
}

.genre-card {
  display: flex;
  flex-direction: column;
  gap: 10px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 20px 18px;
  transition: border-color 0.18s ease, box-shadow 0.18s ease;
}

.genre-card:hover {
  border-color: var(--gold-soft);
  box-shadow: var(--shadow-soft);
}

.genre-no {
  font-family: var(--font-title);
  font-size: 13px;
  color: var(--gold);
  letter-spacing: 0;
}

.genre-name {
  font-size: 19px;
  font-weight: 600;
}

.genre-trait {
  font-size: 14px;
  color: var(--ink-soft);
}

.genre-samples {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding-top: 4px;
  border-top: 1px dashed var(--line);
}

.genre-samples li a {
  font-size: 14px;
  color: var(--ink);
  display: inline-block;
  min-height: 24px;
}

.genre-samples li a:hover {
  color: var(--gold);
}

.genre-entry {
  margin-top: auto;
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  font-size: 14px;
  font-weight: 600;
  color: var(--gold);
}

.genre-entry::after {
  content: "→";
  margin-left: 6px;
}

.genre-entry:hover {
  color: var(--ink);
}

/* 封面墙与最近更新 */
.home-wall-updates {
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(0, 1fr);
  gap: 36px;
  align-items: start;
}

.wall-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.wall-item {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  transition: transform 0.18s ease, box-shadow 0.18s ease, border-color 0.18s ease;
}

.wall-item:hover {
  transform: translateY(-2px);
  border-color: var(--gold-soft);
  box-shadow: var(--shadow-lift);
}

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

.wall-item-tall img {
  aspect-ratio: 3 / 4.6;
}

.wall-item-wide {
  grid-column: span 2;
}

.wall-item-wide img {
  aspect-ratio: 16 / 9;
}

.wall-name {
  font-size: 15px;
  font-weight: 600;
  padding: 10px 12px 0;
}

.wall-name a {
  display: inline-block;
  min-height: 24px;
}

.wall-meta {
  padding: 4px 12px 12px;
  font-size: 13px;
  color: var(--ink-soft);
}

.updates-column {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 22px 20px;
}

.update-group + .update-group {
  margin-top: 20px;
  padding-top: 18px;
  border-top: 1px solid var(--line);
}

.update-date {
  font-size: 15px;
  font-weight: 600;
  color: var(--gold);
  margin-bottom: 10px;
}

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

.update-row {
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) minmax(0, 0.9fr) auto;
  align-items: center;
  gap: 10px;
  padding: 9px 0;
  border-bottom: 1px dashed var(--line);
  font-size: 14px;
}

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

.update-name {
  color: var(--ink);
}

.update-genre {
  color: var(--ink-soft);
  font-size: 13px;
}

.update-status {
  color: var(--green);
  font-size: 13px;
}

.update-chapter {
  grid-column: 1 / -1;
  font-size: 13px;
  color: var(--ink-soft);
}

/* 人气榜单与字段口径 */
.home-ranking-fields {
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(0, 1fr);
  gap: 36px;
  align-items: start;
}

.ranking-column {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 22px 20px;
}

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

.rank-item {
  display: grid;
  grid-template-columns: 34px minmax(0, 1.3fr) minmax(0, 0.8fr) auto;
  align-items: center;
  gap: 10px;
  padding: 11px 0;
  border-bottom: 1px solid var(--line);
  font-size: 14px;
}

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

.rank-no {
  font-family: var(--font-title);
  font-size: 16px;
  color: var(--gold);
}

.rank-name a {
  display: inline-block;
  min-height: 24px;
  color: var(--ink);
}

.rank-name a:hover {
  color: var(--gold);
}

.rank-genre {
  font-size: 13px;
  color: var(--ink-soft);
}

.rank-status {
  font-size: 13px;
  color: var(--green);
}

.rank-note {
  grid-column: 2 / -1;
  font-size: 13px;
  color: var(--ink-soft);
}

.fields-column {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 22px 20px;
}

.field-summary {
  margin: 0;
  display: grid;
  grid-template-columns: minmax(0, 96px) minmax(0, 1fr);
  gap: 8px 14px;
}

.field-summary dt {
  font-size: 14px;
  font-weight: 600;
  color: var(--ink);
}

.field-summary dd {
  margin: 0;
  font-size: 14px;
  color: var(--ink-soft);
}

.boundary-summary {
  margin-top: 20px;
  padding-top: 18px;
  border-top: 1px solid var(--line);
}

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

.boundary-summary p {
  font-size: 14px;
  color: var(--ink-soft);
}

.boundary-link {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  margin-top: 6px;
  font-size: 14px;
  font-weight: 600;
  color: var(--gold);
}

.boundary-link::after {
  content: "→";
  margin-left: 6px;
}

.boundary-link:hover {
  color: var(--ink);
}

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

.index-item {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 18px 16px;
  transition: border-color 0.18s ease, box-shadow 0.18s ease;
}

.index-item:hover {
  border-color: var(--gold-soft);
  box-shadow: var(--shadow-soft);
}

.index-name {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 8px;
}

.index-name a {
  display: inline-block;
  min-height: 24px;
}

.index-desc {
  font-size: 13px;
  color: var(--ink-soft);
}

/* --------------------------------------------------------------------------
   pages · 题材分类
   -------------------------------------------------------------------------- */
.direction-groups {
  display: flex;
  flex-direction: column;
  gap: 32px;
}

.direction-group {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 24px 22px;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 260px);
  grid-template-areas:
    "head media"
    "body media";
  gap: 18px 30px;
}

.direction-head {
  grid-area: head;
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  align-items: baseline;
  gap: 6px 12px;
}

.direction-no {
  font-family: var(--font-title);
  font-size: 14px;
  color: var(--gold);
}

.direction-name {
  font-size: 21px;
  font-weight: 600;
}

.direction-trait {
  grid-column: 1 / -1;
  font-size: 14px;
  color: var(--ink-soft);
}

.direction-media {
  grid-area: media;
}

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

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

.cover-figure figcaption {
  padding: 9px 12px;
  font-size: 13px;
  color: var(--ink-soft);
  border-top: 1px solid var(--line);
}

.direction-body {
  grid-area: body;
}

.direction-subtitle {
  font-size: 15px;
  font-weight: 600;
  color: var(--ink);
  margin-bottom: 10px;
}

.entry-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 12px;
}

.entry-item {
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  padding: 12px 14px;
  background: #FCFAF7;
}

.entry-name {
  font-size: 15px;
  font-weight: 600;
  margin-bottom: 6px;
}

.entry-meta {
  font-size: 13px;
  color: var(--ink-soft);
}

.field-notes {
  margin-top: 56px;
}

.field-note-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 14px;
}

.field-note-item {
  background: var(--surface);
  border: 1px solid var(--line);
  border-left: 3px solid var(--gold-soft);
  border-radius: var(--radius-sm);
  padding: 14px 16px;
}

.field-note-name {
  display: block;
  font-size: 14px;
  font-weight: 600;
  color: var(--ink);
  margin-bottom: 4px;
}

.field-note-text {
  font-size: 14px;
  color: var(--ink-soft);
}

.related {
  margin-top: 56px;
}

.related-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 18px;
}

.related-card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 20px 18px;
  transition: border-color 0.18s ease, box-shadow 0.18s ease;
}

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

.related-name {
  font-size: 17px;
  font-weight: 600;
  margin-bottom: 8px;
}

.related-name a {
  display: inline-block;
  min-height: 24px;
}

.related-text {
  font-size: 14px;
  color: var(--ink-soft);
}

/* --------------------------------------------------------------------------
   pages · 最近更新
   -------------------------------------------------------------------------- */
.update-feature {
  margin-bottom: 48px;
}

.feature-figure {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--surface);
  max-width: 720px;
}

.feature-figure img {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
}

.feature-caption {
  padding: 10px 16px;
  font-size: 13px;
  color: var(--ink-soft);
  border-top: 1px solid var(--line);
}

.update-groups {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.update-day {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 20px 22px;
}

.day-title {
  font-size: 17px;
  font-weight: 600;
  color: var(--gold);
  margin-bottom: 12px;
}

.update-day .update-row {
  grid-template-columns: minmax(0, 1.5fr) minmax(0, 1fr) auto minmax(0, 1fr);
  gap: 12px;
}

.row-name {
  font-size: 15px;
  color: var(--ink);
}

.row-genre {
  font-size: 13px;
  color: var(--ink-soft);
}

.row-status {
  font-size: 13px;
  color: var(--green);
}

.row-chapter {
  font-size: 13px;
  color: var(--ink-soft);
  text-align: right;
}

.record-notes {
  margin-top: 56px;
}

.notes-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 18px;
}

.note-block,
.note-card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 20px 18px;
}

.note-title {
  font-size: 17px;
  font-weight: 600;
  margin-bottom: 8px;
}

.note-text {
  font-size: 14px;
  color: var(--ink-soft);
}

.related-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 14px;
}

.related-item {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 16px 18px;
  transition: border-color 0.18s ease, box-shadow 0.18s ease;
}

.related-item:hover {
  border-color: var(--gold-soft);
  box-shadow: var(--shadow-soft);
}

.related-item a {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  font-size: 15px;
  font-weight: 600;
  color: var(--ink);
}

.related-item a:hover {
  color: var(--gold);
}

/* --------------------------------------------------------------------------
   pages · 人气榜单
   -------------------------------------------------------------------------- */
.rank-section {
  margin-bottom: 56px;
}

.rank-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 300px);
  gap: 32px;
  align-items: start;
}

.rank-list-col {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 8px 22px;
}

.rank-section .rank-item {
  grid-template-columns: 44px minmax(0, 1fr);
  align-items: start;
  padding: 18px 0;
}

.rank-position {
  font-family: var(--font-title);
  font-size: 20px;
  color: var(--gold);
  line-height: 1.4;
}

.rank-entry {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.rank-section .rank-name {
  font-size: 17px;
  font-weight: 600;
}

.rank-section .rank-name a {
  display: inline-block;
  min-height: 24px;
}

.rank-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 14px;
  font-size: 13px;
  color: var(--ink-soft);
}

.rank-section .rank-note {
  font-size: 14px;
  color: var(--ink-soft);
}

.rank-side {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 18px;
}

.rank-feature {
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  overflow: hidden;
  background: var(--bg);
}

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

.rank-feature-caption {
  padding: 9px 12px;
  font-size: 13px;
  color: var(--ink-soft);
  border-top: 1px solid var(--line);
}

.rank-side-note {
  margin-top: 14px;
  font-size: 13px;
  color: var(--ink-soft);
}

.rank-notes {
  margin-bottom: 56px;
}

/* --------------------------------------------------------------------------
   pages · 条目字段说明
   -------------------------------------------------------------------------- */
.guide-visual {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: 32px;
  align-items: center;
  margin-bottom: 56px;
}

.guide-figure {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--surface);
}

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

.guide-figure figcaption {
  padding: 10px 16px;
  font-size: 13px;
  color: var(--ink-soft);
  border-top: 1px solid var(--line);
}

.guide-visual-text .section-title {
  margin-bottom: 12px;
}

.guide-visual-text p + p {
  margin-top: 12px;
}

.guide-visual-text p {
  font-size: 15px;
  color: var(--ink-soft);
}

.field-section {
  margin-bottom: 56px;
}

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

.field-item {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 4px 20px;
}

.field-summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 14px 0;
  cursor: pointer;
  list-style: none;
}

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

.field-summary::after {
  content: "+";
  font-family: var(--font-title);
  font-size: 18px;
  color: var(--gold);
}

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

.field-name {
  font-size: 16px;
  font-weight: 600;
  color: var(--ink);
}

.field-hint {
  font-size: 13px;
  color: var(--ink-soft);
  margin-left: auto;
}

.field-body {
  padding: 0 0 16px;
  border-top: 1px solid var(--line);
}

.field-detail {
  margin: 14px 0 0;
  display: grid;
  grid-template-columns: minmax(0, 96px) minmax(0, 1fr);
  gap: 8px 16px;
}

.field-detail dt {
  font-size: 14px;
  font-weight: 600;
  color: var(--ink);
}

.field-detail dd {
  margin: 0;
  font-size: 14px;
  color: var(--ink-soft);
}

.boundary-section {
  margin-bottom: 56px;
}

.boundary-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 18px;
}

.boundary-card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 20px 18px;
}

.boundary-card .boundary-title {
  font-size: 17px;
  font-weight: 600;
  margin-bottom: 10px;
}

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

.boundary-list li {
  position: relative;
  padding-left: 16px;
  font-size: 14px;
  color: var(--ink-soft);
}

.boundary-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 10px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--gold-soft);
}

.path-section {
  margin-bottom: 24px;
}

.path-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 18px;
}

.path-card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 20px 18px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.path-title {
  font-size: 17px;
  font-weight: 600;
}

.path-desc {
  font-size: 14px;
  color: var(--ink-soft);
}

.path-card .path-link {
  margin-top: auto;
  align-self: flex-start;
}

.path-footnote {
  margin-top: 18px;
  font-size: 14px;
  color: var(--ink-soft);
}

.path-footnote a {
  color: var(--gold);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.path-footnote a:hover {
  color: var(--ink);
}

/* --------------------------------------------------------------------------
   pages · 404
   -------------------------------------------------------------------------- */
.error-main {
  padding-top: 56px;
  padding-bottom: 72px;
}

.error-panel {
  max-width: 640px;
  margin: 0 auto;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 36px 32px;
  text-align: center;
}

.error-code {
  font-family: var(--font-title);
  font-size: 34px;
  color: var(--gold);
  margin-bottom: 8px;
}

.error-panel h1 {
  font-size: 26px;
  margin-bottom: 12px;
}

.error-desc {
  font-size: 15px;
  color: var(--ink-soft);
  margin-bottom: 22px;
}

.error-paths {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 10px;
  margin-bottom: 22px;
}

.error-paths a {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 0 16px;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  font-size: 14px;
  color: var(--ink);
  transition: border-color 0.18s ease, color 0.18s ease;
}

.error-paths a:hover {
  border-color: var(--gold-soft);
  color: var(--gold);
}

.error-action {
  font-size: 15px;
}

.error-home-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0 22px;
  border-radius: var(--radius-sm);
  background: var(--gold);
  color: #FFFFFF;
  font-weight: 600;
}

.error-home-link:hover {
  background: #94763F;
  color: #FFFFFF;
}

/* --------------------------------------------------------------------------
   responsive · 1024px 与 640px 断点
   -------------------------------------------------------------------------- */
@media (max-width: 1024px) {
  .home-hero {
    grid-template-columns: minmax(0, 1fr);
    gap: 26px;
  }

  .hero-title {
    font-size: 32px;
  }

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

  .home-wall-updates,
  .home-ranking-fields {
    grid-template-columns: minmax(0, 1fr);
    gap: 30px;
  }

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

  .direction-group {
    grid-template-columns: minmax(0, 1fr);
    grid-template-areas:
      "head"
      "media"
      "body";
  }

  .cover-figure img {
    aspect-ratio: 16 / 9;
  }

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

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

  .footer-inner {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 26px;
  }
}

@media (max-width: 640px) {
  :root {
    --gutter: 16px;
  }

  body {
    font-size: 15px;
  }

  .header-inner {
    padding: 10px var(--gutter);
    gap: 12px;
    flex-wrap: wrap;
  }

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

  .site-nav {
    flex: 1 0 100%;
    margin-left: 0;
  }

  .nav-list {
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 2px;
    padding: 6px 0 10px;
    border-top: 1px solid var(--line);
  }

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

  .nav-item > a {
    width: 100%;
    justify-content: flex-start;
    padding: 0 12px;
    font-size: 16px;
    border-radius: var(--radius-sm);
  }

  .site-main {
    padding: 22px var(--gutter) 44px;
  }

  .site-main > section + section {
    margin-top: 40px;
  }

  .hero-title {
    font-size: 27px;
  }

  .hero-lead {
    font-size: 15px;
  }

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

  .path-link {
    justify-content: center;
  }

  .hero-covers {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 12px;
  }

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

  .wall-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 12px;
  }

  .wall-item-wide {
    grid-column: span 2;
  }

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

  .update-row,
  .update-day .update-row {
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 6px 10px;
  }

  .update-genre,
  .row-genre {
    grid-column: 1 / -1;
  }

  .update-chapter,
  .row-chapter {
    grid-column: 1 / -1;
    text-align: left;
  }

  .rank-item,
  .rank-section .rank-item {
    grid-template-columns: 34px minmax(0, 1fr);
    gap: 8px;
  }

  .rank-genre,
  .rank-status {
    grid-column: 2 / -1;
  }

  .rank-note {
    grid-column: 2 / -1;
  }

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

  .field-summary {
    flex-wrap: wrap;
    gap: 8px;
  }

  .field-hint {
    margin-left: 0;
    flex: 1 0 100%;
  }

  .field-detail {
    display: grid;
    gap: 4px 0;
  }

  .page-title {
    font-size: 25px;
  }

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

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

  .error-panel {
    padding: 28px 20px;
  }

  .footer-inner {
    grid-template-columns: minmax(0, 1fr);
    padding: 32px var(--gutter) 20px;
    gap: 22px;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  * {
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
  }
}