/* ==========================================================================
   黑料曝光 wh-luck.com — 卷期档案式漫画目录站全站样式
   分组：base / layout / components / pages / responsive
   ========================================================================== */

/* --------------------------------------------------------------------------
   base — 变量、重置、排版基准
   -------------------------------------------------------------------------- */
:root {
  --paper: #F7F5F0;
  --ink: #14161A;
  --ink-soft: #5C6169;
  --vermilion: #C0392B;
  --indigo: #22405F;
  --rule: #E3DFD6;
  --paper-raised: #FDFCF9;
  --radius: 2px;
  --font-sans: system-ui, -apple-system, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, Consolas, "Liberation Mono", monospace;
  --shell-width: 1200px;
  --content-width: 1080px;
  --gutter: 24px;
}

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

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

body {
  margin: 0;
  background-color: var(--paper);
  color: var(--ink);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.8;
  text-rendering: optimizeLegibility;
}

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

h1 {
  font-size: clamp(26px, 4.2vw, 38px);
}

h2 {
  font-size: 22px;
}

h3 {
  font-size: 17px;
}

h4 {
  font-size: 15px;
}

p {
  margin: 0 0 14px;
}

p:last-child {
  margin-bottom: 0;
}

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

a {
  color: var(--indigo);
  text-decoration: none;
  transition: color 160ms ease, border-color 160ms ease;
}

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

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

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

figure {
  margin: 0;
}

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

button {
  font: inherit;
  color: inherit;
}

strong {
  font-weight: 600;
}

table {
  border-collapse: collapse;
  width: 100%;
}

/* 编号与数据字块统一等宽字体 */
.no,
.no-mark,
.no-label,
.chapter-no,
.section-no,
.genre-no,
.entry-no,
.rank-no,
.rank-num,
.rank-name,
.shelf-item-no,
.shelf-item-vol,
.notice-no,
.card-no,
.step-no,
.principle-no,
.type-no,
.chip-no,
.scene-no,
.method-no,
.error-code {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  letter-spacing: 0.06em;
}

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

/* 页头 */
.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  background-color: var(--paper);
  border-bottom: 1px solid var(--rule);
}

.header-inner {
  max-width: var(--shell-width);
  margin: 0 auto;
  padding: 0 var(--gutter);
  min-height: 64px;
  display: flex;
  align-items: center;
  gap: 20px;
  flex-wrap: wrap;
}

.brand {
  display: flex;
  align-items: baseline;
  gap: 10px;
  flex: 0 0 auto;
  color: var(--ink);
}

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

.brand-name {
  font-size: 20px;
  font-weight: 600;
  letter-spacing: 0.02em;
}

.brand-sub {
  font-size: 12px;
  color: var(--ink-soft);
  letter-spacing: 0.04em;
}

/* 主导航 */
.site-nav {
  flex: 1 1 auto;
  display: flex;
  justify-content: flex-end;
}

.site-nav ul {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 4px 2px;
}

.site-nav a {
  display: block;
  padding: 8px 10px;
  min-height: 44px;
  line-height: 28px;
  font-size: 14px;
  color: var(--ink);
  border-bottom: 2px solid transparent;
}

.site-nav a:hover,
.site-nav a:focus-visible {
  color: var(--vermilion);
  border-bottom-color: var(--rule);
}

.site-nav a.is-current {
  color: var(--vermilion);
  border-bottom-color: var(--vermilion);
}

/* 汉堡按钮：桌面隐藏 */
.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  padding: 0;
  background-color: transparent;
  border: 1px solid var(--rule);
  border-radius: var(--radius);
  cursor: pointer;
  position: relative;
  flex: 0 0 auto;
}

.nav-toggle::before {
  content: "";
  position: absolute;
  left: 12px;
  right: 12px;
  top: 15px;
  height: 1px;
  background-color: var(--ink);
  box-shadow: 0 6px 0 var(--ink), 0 12px 0 var(--ink);
}

/* 主容器 */
.site-main {
  display: block;
}

.home-main {
  padding-bottom: 8px;
}

.inner-main {
  max-width: var(--content-width);
  margin: 0 auto;
  padding: 0 var(--gutter) 72px;
}

/* 面包屑 */
.breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 20px 0 0;
  font-size: 14px;
  color: var(--ink-soft);
}

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

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

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

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

/* 内页标题区 */
.page-header {
  padding: 18px 0 0;
}

.page-title {
  font-size: clamp(26px, 4.2vw, 38px);
  font-weight: 600;
  color: var(--ink);
}

section.page-title,
header.page-title {
  padding: 14px 0 26px;
  border-bottom: 1px solid var(--rule);
  margin-bottom: 40px;
}

.page-lead,
.page-lede {
  font-size: 16px;
  color: var(--ink-soft);
  max-width: 68ch;
}

.page-meta {
  margin-top: 10px;
  font-size: 13px;
  color: var(--ink-soft);
}

.section-no,
.chapter-no {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 10px;
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--vermilion);
}

.section-no .no-mark,
.chapter-no .no {
  font-weight: 600;
}

.section-no .no-label,
.chapter-no .no-label {
  color: var(--ink-soft);
}

/* 页脚 */
.site-footer {
  margin-top: 64px;
  border-top: 1px solid var(--rule);
  background-color: var(--paper);
}

.footer-inner {
  max-width: var(--shell-width);
  margin: 0 auto;
  padding: 32px var(--gutter) 40px;
}

.footer-nav ul {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 20px;
}

.footer-nav a {
  display: inline-block;
  min-height: 32px;
  line-height: 32px;
  font-size: 14px;
  color: var(--ink);
}

.footer-nav a:hover,
.footer-nav a:focus-visible {
  color: var(--vermilion);
}

.footer-boundary {
  margin: 18px 0 0;
  padding-top: 16px;
  border-top: 1px solid var(--rule);
  font-size: 13px;
  line-height: 1.8;
  color: var(--ink-soft);
  max-width: 78ch;
}

.footer-sign {
  margin: 12px 0 0;
  font-size: 13px;
  color: var(--ink-soft);
}

/* --------------------------------------------------------------------------
   components — 通用组件：编号头 / 标签 / 卡片 / 条目 / 按钮 / 折叠
   -------------------------------------------------------------------------- */

/* 章节编号头（首页分段） */
.segment {
  padding: 56px 0;
  border-top: 1px solid var(--rule);
}

.segment .section-inner {
  max-width: var(--shell-width);
  margin: 0 auto;
  padding: 0 var(--gutter);
}

.segment-lead {
  max-width: 68ch;
  color: var(--ink-soft);
  margin-bottom: 26px;
}

/* 栏目标题与说明间距 */
.segment h2,
.inner-main h2 {
  margin-bottom: 14px;
}

/* 题材标签胶囊 */
.chip,
.genre-chip,
.tag {
  display: inline-block;
  padding: 2px 9px;
  border: 1px solid var(--indigo);
  border-radius: var(--radius);
  font-size: 12px;
  line-height: 1.7;
  color: var(--indigo);
  white-space: nowrap;
}

a.chip:hover,
a.chip:focus-visible {
  color: var(--vermilion);
  border-color: var(--vermilion);
}

.tag {
  border-color: var(--rule);
  color: var(--ink-soft);
}

/* 文字箭头链接 */
.inline-cta {
  margin-top: 18px;
  font-size: 14px;
}

.link-arrow,
.text-link,
.link-more {
  display: inline-block;
  min-height: 32px;
  line-height: 32px;
  font-size: 14px;
  border-bottom: 1px solid var(--rule);
}

.link-arrow:hover,
.text-link:hover,
.link-more:hover,
.link-arrow:focus-visible,
.text-link:focus-visible,
.link-more:focus-visible {
  border-bottom-color: var(--vermilion);
}

/* 决策节点提示条 */
.decision-note {
  max-width: 78ch;
  margin: 0 0 26px;
  padding: 12px 16px;
  border-left: 2px solid var(--vermilion);
  background-color: var(--paper-raised);
  font-size: 14px;
  color: var(--ink-soft);
}

/* 复制按钮与提示 */
.btn-copy,
.copy-link-btn {
  display: inline-block;
  min-height: 44px;
  padding: 10px 18px;
  background-color: transparent;
  border: 1px solid var(--indigo);
  border-radius: var(--radius);
  font-size: 14px;
  color: var(--indigo);
  cursor: pointer;
  transition: color 160ms ease, border-color 160ms ease, background-color 160ms ease;
}

.btn-copy:hover,
.copy-link-btn:hover,
.btn-copy:focus-visible,
.copy-link-btn:focus-visible {
  color: var(--vermilion);
  border-color: var(--vermilion);
}

.copy-hint {
  margin: 10px 0 0;
  font-size: 13px;
  color: var(--ink-soft);
  min-height: 20px;
}

/* FAQ 折叠 */
details.faq-item {
  border-bottom: 1px solid var(--rule);
}

details.faq-item summary {
  padding: 16px 30px 16px 0;
  font-size: 16px;
  font-weight: 600;
  cursor: pointer;
  position: relative;
  list-style: none;
}

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

details.faq-item summary::after {
  content: "＋";
  position: absolute;
  right: 4px;
  top: 16px;
  font-size: 15px;
  color: var(--vermilion);
}

details.faq-item[open] summary::after {
  content: "－";
}

details.faq-item p {
  padding: 0 0 18px;
  max-width: 68ch;
  color: var(--ink-soft);
}

/* 返回顶部 */
.back-top {
  margin-top: 26px;
  font-size: 14px;
}

/* 图片容器统一约束 */
.hero-figure,
.genre-figure,
.editorial-figure,
.genre-cross-media,
.shelf-legend-figure,
.rank-cover,
.step-media,
.flow-figure,
.notice-figure,
.copy-figure {
  border: 1px solid var(--rule);
  border-radius: var(--radius);
  background-color: var(--paper-raised);
  overflow: hidden;
}

.hero-figure img,
.genre-figure img,
.editorial-figure img,
.genre-cross-media img,
.shelf-legend-figure img,
.step-media img,
.flow-figure img,
.notice-figure img,
.copy-figure img {
  width: 100%;
  height: auto;
  object-fit: cover;
}

.hero-figure figcaption,
.genre-figure figcaption,
.editorial-figure figcaption,
.genre-cross-media figcaption,
.shelf-legend-figure figcaption,
.step-media figcaption,
.flow-figure figcaption,
.notice-figure figcaption,
.copy-figure figcaption {
  padding: 8px 12px 10px;
  margin-top: 0;
  border-top: 1px solid var(--rule);
}

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

/* 首屏场景区 */
.hero-scene {
  padding: 48px 0 56px;
}

.hero-grid {
  max-width: var(--shell-width);
  margin: 0 auto;
  padding: 0 var(--gutter);
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 460px);
  gap: 48px;
  align-items: start;
}

.hero-text .chapter-no {
  margin-bottom: 16px;
}

.hero-text h1 {
  margin-bottom: 16px;
}

.hero-lead {
  max-width: 46ch;
  font-size: 16px;
  color: var(--ink-soft);
  margin-bottom: 28px;
}

.scene-entries {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}

.scene-card {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 16px;
  min-height: 120px;
  border: 1px solid var(--rule);
  border-radius: var(--radius);
  background-color: var(--paper-raised);
  color: var(--ink);
  transition: transform 160ms ease, border-color 160ms ease;
}

.scene-card:hover,
.scene-card:focus-visible {
  border-color: var(--indigo);
  transform: translateY(-2px);
  color: var(--ink);
}

.scene-no {
  font-size: 12px;
  color: var(--vermilion);
}

.scene-name {
  font-size: 15px;
  font-weight: 600;
}

.scene-desc {
  font-size: 13px;
  line-height: 1.7;
  color: var(--ink-soft);
}

.hero-figure img {
  aspect-ratio: 4 / 3;
}

/* 题材速览 */
.genre-brief-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: 40px;
  align-items: start;
}

.genre-brief p {
  max-width: 60ch;
  color: var(--ink-soft);
}

.genre-figure {
  margin: 20px 0;
}

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

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

.genre-chips li {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 14px;
  border: 1px solid var(--rule);
  border-radius: var(--radius);
  background-color: var(--paper-raised);
}

.chip-no {
  font-size: 12px;
  color: var(--vermilion);
  flex: 0 0 auto;
}

/* 更新台账 */
.update-columns {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 32px;
}

.update-col {
  padding: 20px;
  border: 1px solid var(--rule);
  border-radius: var(--radius);
  background-color: var(--paper-raised);
}

.update-col-title {
  padding-bottom: 10px;
  margin-bottom: 12px;
  border-bottom: 1px solid var(--rule);
}

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

.entry-row {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 4px 10px;
  padding: 12px 0;
  border-bottom: 1px dashed var(--rule);
}

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

.entry-no {
  font-size: 12px;
  color: var(--vermilion);
  grid-row: span 2;
  padding-top: 2px;
}

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

.entry-vol {
  font-size: 12px;
  color: var(--ink-soft);
}

/* 榜单 */
.ranking-columns {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 24px;
}

.ranking-col {
  padding: 20px;
  border: 1px solid var(--rule);
  border-radius: var(--radius);
  background-color: var(--paper-raised);
}

.ranking-col-title {
  margin-bottom: 8px;
}

.ranking-rule {
  font-size: 13px;
  line-height: 1.7;
  color: var(--ink-soft);
  padding-bottom: 12px;
  margin-bottom: 12px;
  border-bottom: 1px solid var(--rule);
}

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

.ranking-col .ranking-list li {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 4px 10px;
  padding-bottom: 12px;
  border-bottom: 1px dashed var(--rule);
}

.ranking-col .ranking-list li:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}

.rank-no {
  font-size: 12px;
  color: var(--vermilion);
  grid-row: span 2;
  padding-top: 2px;
}

.rank-name {
  font-size: 15px;
  font-weight: 600;
}

.rank-note {
  font-size: 13px;
  line-height: 1.7;
  color: var(--ink-soft);
}

/* 阅读准备与内容边界 */
.guide-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: 40px;
  align-items: start;
}

.reading-prep h3,
.boundary-note h3 {
  margin-bottom: 12px;
}

.prep-steps {
  counter-reset: prep;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.prep-steps li {
  position: relative;
  padding-left: 34px;
  font-size: 15px;
  color: var(--ink-soft);
}

.prep-steps li::before {
  counter-increment: prep;
  content: counter(prep, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 2px;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--vermilion);
}

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

.boundary-list li {
  padding-left: 16px;
  position: relative;
  font-size: 15px;
  color: var(--ink-soft);
}

.boundary-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 12px;
  width: 6px;
  height: 1px;
  background-color: var(--vermilion);
}

/* 选题与专题 */
.editorial-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: 40px;
  align-items: start;
}

.editorial-intro .editorial-figure {
  margin-bottom: 20px;
}

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

.editorial-intro h3,
.editorial-method h3 {
  margin-bottom: 12px;
}

.editorial-intro p {
  color: var(--ink-soft);
  max-width: 60ch;
}

.method-list {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.method-list li {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 12px;
  padding-bottom: 14px;
  border-bottom: 1px dashed var(--rule);
}

.method-list li:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}

.method-no {
  font-size: 12px;
  color: var(--vermilion);
  padding-top: 4px;
}

/* 纠错反馈入口窄带 */
.feedback-band {
  max-width: var(--shell-width);
  margin: 0 auto;
  padding: 0 var(--gutter);
}

.feedback-band h2 {
  margin-bottom: 12px;
}

.feedback-band > p {
  max-width: 68ch;
  color: var(--ink-soft);
}

.feedback-actions {
  margin-top: 20px;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 20px;
}

.feedback-actions .copy-hint {
  margin: 0;
}

/* --------------------------------------------------------------------------
   pages — 内页：题材图鉴
   -------------------------------------------------------------------------- */
.genre-index-strip {
  margin-bottom: 56px;
}

.genre-index-strip h2 {
  margin-bottom: 18px;
}

.genre-index-list {
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  gap: 16px;
}

.genre-index-item {
  padding: 16px 14px;
  border: 1px solid var(--rule);
  border-radius: var(--radius);
  background-color: var(--paper-raised);
}

.genre-no {
  display: block;
  font-size: 12px;
  color: var(--vermilion);
  margin-bottom: 6px;
}

.genre-index-name {
  font-size: 15px;
  margin-bottom: 6px;
}

.genre-index-desc {
  font-size: 13px;
  line-height: 1.7;
  color: var(--ink-soft);
  margin: 0;
}

.genre-detail-blocks h2 {
  margin-bottom: 8px;
}

.genre-block {
  display: grid;
  grid-template-columns: minmax(0, 1.5fr) minmax(220px, 1fr);
  gap: 40px;
  align-items: start;
  padding: 36px 0;
  border-bottom: 1px solid var(--rule);
}

.genre-block-reverse {
  grid-template-columns: minmax(220px, 1fr) minmax(0, 1.5fr);
}

.genre-block-reverse .genre-block-text {
  order: 2;
}

.genre-block-reverse .genre-block-side {
  order: 1;
}

.genre-block-text h3 {
  margin-bottom: 12px;
}

.genre-block-text p {
  max-width: 66ch;
  color: var(--ink-soft);
}

.genre-block-side {
  padding: 18px;
  border: 1px solid var(--rule);
  border-radius: var(--radius);
  background-color: var(--paper-raised);
}

.genre-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.genre-side-label {
  margin: 16px 0 10px;
  font-size: 13px;
  color: var(--ink-soft);
}

.genre-entry {
  display: block;
  min-height: 36px;
  line-height: 36px;
  font-size: 14px;
  border-bottom: 1px solid var(--rule);
}

.genre-entry:last-child {
  border-bottom: 0;
}

.genre-cross h2 {
  margin-bottom: 20px;
}

.genre-cross-media {
  margin-bottom: 26px;
}

.genre-cross-media img {
  aspect-ratio: 21 / 9;
}

.genre-cross-table-wrap {
  overflow-x: auto;
}

.genre-cross-table caption {
  text-align: left;
  padding-bottom: 10px;
  font-size: 13px;
  color: var(--ink-soft);
}

.genre-cross-table th,
.genre-cross-table td {
  padding: 12px 14px;
  border-bottom: 1px solid var(--rule);
  font-size: 14px;
  text-align: left;
  vertical-align: top;
}

.genre-cross-table thead th {
  font-size: 13px;
  color: var(--ink-soft);
  font-weight: 600;
  border-bottom: 1px solid var(--ink);
  white-space: nowrap;
}

.genre-cross-table tbody th {
  font-weight: 600;
  white-space: nowrap;
}

.genre-cross-table td {
  color: var(--ink-soft);
}

.genre-cross-note {
  margin-top: 20px;
  font-size: 14px;
  display: flex;
  flex-wrap: wrap;
  gap: 8px 18px;
}

/* --------------------------------------------------------------------------
   pages — 内页：作品目录
   -------------------------------------------------------------------------- */
.shelf-legend {
  margin-bottom: 48px;
}

.shelf-legend h2 {
  margin-bottom: 18px;
}

.shelf-legend-inner {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 360px);
  gap: 36px;
  align-items: start;
}

.shelf-legend-text p {
  max-width: 66ch;
  color: var(--ink-soft);
}

.shelf-legend-figure img {
  aspect-ratio: 4 / 3;
}

.shelf-section {
  padding: 32px 0;
  border-top: 1px solid var(--rule);
}

.shelf-section-head {
  margin-bottom: 18px;
}

.shelf-section-head h2 {
  margin-bottom: 8px;
}

.shelf-section-note {
  font-size: 13px;
  color: var(--ink-soft);
  margin: 0;
}

.shelf-list {
  border-top: 1px solid var(--rule);
}

.shelf-item {
  display: grid;
  grid-template-columns: 56px minmax(0, 1fr) auto auto;
  gap: 8px 18px;
  align-items: center;
  padding: 14px 0;
  border-bottom: 1px solid var(--rule);
  transition: border-color 160ms ease, transform 160ms ease;
}

.shelf-item:hover {
  border-bottom-color: var(--indigo);
  transform: translateY(-2px);
}

.shelf-item-no {
  font-size: 12px;
  color: var(--vermilion);
}

.shelf-item-name {
  font-size: 15px;
  font-weight: 600;
}

.shelf-item-vol {
  font-size: 13px;
  color: var(--ink-soft);
  white-space: nowrap;
}

.shelf-crosslink {
  padding-top: 40px;
}

.shelf-crosslink h2 {
  margin-bottom: 20px;
}

.shelf-crosslink-cols {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 32px;
}

.shelf-crosslink-col {
  padding: 20px;
  border: 1px solid var(--rule);
  border-radius: var(--radius);
  background-color: var(--paper-raised);
}

.shelf-crosslink-col h3 {
  margin-bottom: 10px;
}

.shelf-crosslink-col p {
  font-size: 15px;
  color: var(--ink-soft);
  margin-bottom: 14px;
}

.shelf-crosslink-note {
  margin-top: 20px;
  font-size: 14px;
}

/* --------------------------------------------------------------------------
   pages — 内页：榜单
   -------------------------------------------------------------------------- */
.ranking-rules {
  margin-bottom: 48px;
}

.ranking-rules h2 {
  margin-bottom: 14px;
}

.rules-intro {
  max-width: 68ch;
  color: var(--ink-soft);
  margin-bottom: 18px;
}

.rules-list {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
}

.rules-list li {
  padding: 14px 16px;
  border: 1px solid var(--rule);
  border-left: 2px solid var(--vermilion);
  border-radius: var(--radius);
  background-color: var(--paper-raised);
  font-size: 14px;
  line-height: 1.75;
  color: var(--ink-soft);
}

.rules-list strong {
  display: block;
  color: var(--ink);
  margin-bottom: 4px;
}

.ranking-dimension {
  padding: 32px 0;
  border-top: 1px solid var(--rule);
}

.dimension-head {
  margin-bottom: 18px;
}

.dimension-head h2 {
  margin-bottom: 8px;
}

.dimension-rule {
  font-size: 13px;
  color: var(--ink-soft);
  margin: 0;
  max-width: 78ch;
}

.ranking-dimension .ranking-list {
  gap: 0;
  border-top: 1px solid var(--rule);
}

.ranking-item {
  display: grid;
  grid-template-columns: 48px 96px minmax(0, 1fr);
  gap: 20px;
  align-items: start;
  padding: 16px 0;
  border-bottom: 1px solid var(--rule);
  transition: border-color 160ms ease, transform 160ms ease;
}

.ranking-item:hover {
  border-bottom-color: var(--indigo);
  transform: translateY(-2px);
}

.rank-num {
  font-size: 20px;
  color: var(--vermilion);
  line-height: 1.2;
}

.rank-cover img {
  width: 96px;
  height: 128px;
  object-fit: cover;
}

.rank-body h3 {
  margin-bottom: 8px;
}

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

.rank-note {
  font-size: 14px;
  color: var(--ink-soft);
  max-width: 68ch;
  margin: 0;
}

.ranking-link-note {
  padding-top: 40px;
}

.ranking-link-note h2 {
  margin-bottom: 20px;
}

.link-note-cols {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 32px;
}

.link-note-col {
  padding: 20px;
  border: 1px solid var(--rule);
  border-radius: var(--radius);
  background-color: var(--paper-raised);
}

.link-note-col h3 {
  margin-bottom: 10px;
}

.link-note-col p {
  font-size: 15px;
  color: var(--ink-soft);
}

.ranking-update-note {
  margin-top: 20px;
  font-size: 14px;
  display: flex;
  flex-wrap: wrap;
  gap: 8px 18px;
}

/* --------------------------------------------------------------------------
   pages — 内页：阅读说明
   -------------------------------------------------------------------------- */
.guide-checklist {
  margin-bottom: 48px;
}

.guide-checklist h2 {
  margin-bottom: 18px;
}

.checklist-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 20px;
}

.checklist-card {
  padding: 20px;
  border: 1px solid var(--rule);
  border-radius: var(--radius);
  background-color: var(--paper-raised);
}

.card-no {
  font-size: 12px;
  color: var(--vermilion);
  margin-bottom: 8px;
}

.checklist-card h3 {
  margin-bottom: 8px;
}

.checklist-card p {
  font-size: 14px;
  color: var(--ink-soft);
  margin: 0;
}

.guide-step {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: 40px;
  align-items: start;
  padding: 36px 0;
  border-top: 1px solid var(--rule);
}

.guide-step-follow .step-media {
  order: 1;
}

.guide-step-follow .step-text {
  order: 2;
}

.step-text h2 {
  margin-bottom: 12px;
}

.step-text > p {
  max-width: 66ch;
  color: var(--ink-soft);
}

.step-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-top: 16px;
}

.step-list li {
  padding-left: 16px;
  position: relative;
  font-size: 15px;
  color: var(--ink-soft);
}

.step-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 13px;
  width: 6px;
  height: 1px;
  background-color: var(--vermilion);
}

.step-list strong {
  color: var(--ink);
}

.step-ordered {
  counter-reset: step;
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-top: 16px;
}

.step-ordered li {
  position: relative;
  padding-left: 36px;
  font-size: 15px;
  color: var(--ink-soft);
}

.step-ordered li::before {
  counter-increment: step;
  content: counter(step, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 2px;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--vermilion);
}

.step-link {
  margin-top: 18px;
  font-size: 14px;
  display: flex;
  flex-wrap: wrap;
  gap: 8px 18px;
}

.step-note {
  margin-top: 16px;
  font-size: 13px;
  color: var(--ink-soft);
}

.step-media img {
  aspect-ratio: 4 / 3;
}

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

.boundary-block {
  padding: 20px;
  border: 1px solid var(--rule);
  border-radius: var(--radius);
  background-color: var(--paper-raised);
}

.boundary-block h3 {
  margin-bottom: 10px;
}

.boundary-block p {
  font-size: 15px;
  color: var(--ink-soft);
}

.guide-note-band {
  padding: 28px 0 0;
  border-top: 1px solid var(--rule);
}

.guide-note-band h2 {
  margin-bottom: 14px;
}

.note-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
  max-width: 78ch;
}

.note-list li {
  padding-left: 16px;
  position: relative;
  font-size: 15px;
  color: var(--ink-soft);
}

.note-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 13px;
  width: 6px;
  height: 1px;
  background-color: var(--vermilion);
}

.note-link {
  margin-top: 18px;
  font-size: 14px;
}

/* --------------------------------------------------------------------------
   pages — 内页：编辑准则
   -------------------------------------------------------------------------- */
.editorial-principles {
  margin-bottom: 48px;
}

.editorial-principles h2 {
  margin-bottom: 12px;
}

.section-intro {
  max-width: 68ch;
  color: var(--ink-soft);
  margin-bottom: 22px;
}

.principle-list {
  border-top: 1px solid var(--rule);
}

.principle-item {
  display: grid;
  grid-template-columns: 72px minmax(180px, 260px) minmax(0, 1fr);
  gap: 20px;
  align-items: start;
  padding: 20px 0;
  border-bottom: 1px solid var(--rule);
}

.principle-no {
  font-size: 12px;
  color: var(--vermilion);
  padding-top: 4px;
}

.principle-name {
  margin: 0;
}

.principle-desc {
  margin: 0;
  font-size: 15px;
  color: var(--ink-soft);
  max-width: 66ch;
}

.editorial-flow {
  padding-top: 40px;
}

.editorial-flow h2 {
  margin-bottom: 12px;
}

.flow-figure {
  margin-bottom: 26px;
}

.flow-figure img {
  aspect-ratio: 21 / 9;
}

.editorial-flow .flow-steps {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 20px;
}

.editorial-flow .flow-step {
  padding: 18px;
  border: 1px solid var(--rule);
  border-radius: var(--radius);
  background-color: var(--paper-raised);
}

.editorial-flow .flow-step .step-no {
  font-size: 12px;
  color: var(--vermilion);
  margin-bottom: 8px;
}

.editorial-flow .flow-step .step-name {
  margin-bottom: 8px;
}

.editorial-flow .flow-step .step-desc {
  font-size: 14px;
  color: var(--ink-soft);
  margin: 0;
}

.editorial-roles {
  padding-top: 40px;
}

.editorial-roles h2 {
  margin-bottom: 12px;
}

.role-columns {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 24px;
}

.role-column {
  padding: 20px;
  border: 1px solid var(--rule);
  border-radius: var(--radius);
  background-color: var(--paper-raised);
}

.role-name {
  margin-bottom: 10px;
}

.role-desc {
  font-size: 15px;
  color: var(--ink-soft);
  margin-bottom: 10px;
}

.role-output {
  font-size: 13px;
  color: var(--ink-soft);
  margin: 0;
  padding-top: 10px;
  border-top: 1px dashed var(--rule);
}

.editorial-links {
  padding-top: 40px;
}

.editorial-links h2 {
  margin-bottom: 16px;
}

.editorial-link-list {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 24px;
}

.editorial-link-list a {
  display: inline-block;
  min-height: 36px;
  line-height: 36px;
  font-size: 14px;
  border-bottom: 1px solid var(--rule);
}

.editorial-link-list a:hover,
.editorial-link-list a:focus-visible {
  border-bottom-color: var(--vermilion);
}

/* --------------------------------------------------------------------------
   pages — 内页：站点公告
   -------------------------------------------------------------------------- */
.notice-index {
  margin-bottom: 44px;
}

.notice-index h2 {
  margin-bottom: 16px;
}

.notice-index-list {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 18px;
}

.notice-index-list a {
  display: inline-block;
  min-height: 36px;
  line-height: 36px;
  padding: 0 12px;
  border: 1px solid var(--rule);
  border-radius: var(--radius);
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.06em;
  color: var(--indigo);
}

.notice-index-list a:hover,
.notice-index-list a:focus-visible {
  border-color: var(--vermilion);
  color: var(--vermilion);
}

.notice-entries h2 {
  margin-bottom: 8px;
}

.notice-entry {
  padding: 28px 0;
  border-top: 1px solid var(--rule);
}

.notice-head {
  margin-bottom: 14px;
}

.notice-no {
  font-size: 12px;
  color: var(--vermilion);
  margin-bottom: 6px;
}

.notice-head h3 {
  margin: 0;
}

.notice-body p {
  max-width: 68ch;
  font-size: 15px;
  color: var(--ink-soft);
}

.notice-body .label {
  display: inline-block;
  min-width: 72px;
  font-size: 13px;
  color: var(--ink);
  font-weight: 600;
}

.notice-figure {
  margin: 18px 0 0;
  max-width: 520px;
}

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

.notice-crosslink {
  margin-top: 16px;
  font-size: 14px;
  display: flex;
  flex-wrap: wrap;
  gap: 8px 18px;
}

.notice-crosslink h2 {
  margin-bottom: 18px;
}

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

.crosslink-item,
.crosslink-card {
  padding: 20px;
  border: 1px solid var(--rule);
  border-radius: var(--radius);
  background-color: var(--paper-raised);
}

.crosslink-item h3,
.crosslink-card h3 {
  margin-bottom: 10px;
}

.crosslink-item p,
.crosslink-card p {
  font-size: 15px;
  color: var(--ink-soft);
}

.crosslink-links {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 18px;
  margin: 0;
}

/* --------------------------------------------------------------------------
   pages — 内页：纠错反馈
   -------------------------------------------------------------------------- */
.section-head {
  margin-bottom: 22px;
}

.section-head h2 {
  margin-bottom: 10px;
}

.section-desc {
  max-width: 68ch;
  color: var(--ink-soft);
  margin: 0;
}

.feedback-types,
.feedback-flow,
.feedback-copy,
.feedback-faq,
.feedback-crosslink {
  padding-top: 44px;
}

.type-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 20px;
}

.type-card {
  padding: 20px;
  border: 1px solid var(--rule);
  border-radius: var(--radius);
  background-color: var(--paper-raised);
}

.type-no {
  font-size: 12px;
  color: var(--vermilion);
  margin-bottom: 8px;
}

.type-card h3 {
  margin-bottom: 10px;
}

.type-judge {
  font-size: 14px;
  color: var(--ink-soft);
  margin-bottom: 8px;
}

.type-example {
  font-size: 13px;
  color: var(--ink-soft);
  margin: 0;
  padding-top: 10px;
  border-top: 1px dashed var(--rule);
}

.feedback-flow .flow-steps {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 20px;
}

.feedback-flow .flow-step {
  padding: 18px;
  border: 1px solid var(--rule);
  border-radius: var(--radius);
  background-color: var(--paper-raised);
}

.feedback-flow .flow-step .step-no {
  font-size: 12px;
  color: var(--vermilion);
  margin-bottom: 8px;
}

.feedback-flow .flow-step h3 {
  margin-bottom: 8px;
}

.feedback-flow .flow-step p {
  font-size: 14px;
  color: var(--ink-soft);
  margin: 0;
}

.copy-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) minmax(220px, 1fr);
  gap: 32px;
  align-items: start;
}

.copy-text p {
  max-width: 66ch;
  color: var(--ink-soft);
}

.copy-action {
  padding: 20px;
  border: 1px solid var(--rule);
  border-radius: var(--radius);
  background-color: var(--paper-raised);
}

.copy-action .copy-hint {
  margin: 10px 0 0;
}

.copy-figure {
  margin-top: 24px;
}

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

.faq-list {
  border-top: 1px solid var(--rule);
}

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

.crosslink-card .link-more {
  margin-top: 10px;
}

/* --------------------------------------------------------------------------
   pages — 404
   -------------------------------------------------------------------------- */
.error-main {
  max-width: var(--content-width);
  margin: 0 auto;
  padding: 0 var(--gutter) 72px;
}

.error-hero {
  padding: 64px 0 40px;
  border-bottom: 1px solid var(--rule);
}

.error-code {
  font-size: 13px;
  letter-spacing: 0.08em;
  color: var(--vermilion);
  margin-bottom: 12px;
}

.error-hero h1 {
  margin-bottom: 14px;
}

.error-lead {
  max-width: 62ch;
  color: var(--ink-soft);
  margin-bottom: 22px;
}

.error-home {
  display: inline-block;
  min-height: 44px;
  padding: 10px 20px;
  line-height: 22px;
  border: 1px solid var(--indigo);
  border-radius: var(--radius);
  font-size: 14px;
}

.error-home:hover,
.error-home:focus-visible {
  border-color: var(--vermilion);
  color: var(--vermilion);
}

.error-routes {
  padding: 40px 0;
  border-bottom: 1px solid var(--rule);
}

.error-routes h2 {
  margin-bottom: 18px;
}

.error-route-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px 32px;
}

.error-route-list li {
  display: flex;
  align-items: baseline;
  gap: 12px;
  min-height: 44px;
  padding: 8px 0;
  border-bottom: 1px dashed var(--rule);
}

.error-route-list a {
  font-size: 15px;
  font-weight: 600;
  flex: 0 0 auto;
}

.error-route-list span {
  font-size: 13px;
  color: var(--ink-soft);
}

.error-help {
  padding: 40px 0 0;
}

.error-help h2 {
  margin-bottom: 12px;
}

.error-help p {
  max-width: 66ch;
  color: var(--ink-soft);
  margin-bottom: 16px;
}

/* --------------------------------------------------------------------------
   responsive — 960px 与 640px 断点
   -------------------------------------------------------------------------- */
@media (max-width: 960px) {
  .hero-grid {
    grid-template-columns: minmax(0, 1fr);
    gap: 32px;
  }

  .hero-figure {
    order: -1;
  }

  .genre-brief-grid,
  .guide-grid,
  .editorial-grid {
    grid-template-columns: minmax(0, 1fr);
    gap: 28px;
  }

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

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

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

  .genre-block,
  .genre-block-reverse {
    grid-template-columns: minmax(0, 1fr);
    gap: 24px;
  }

  .genre-block-reverse .genre-block-text,
  .genre-block-reverse .genre-block-side {
    order: 0;
  }

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

  .shelf-item {
    grid-template-columns: 48px minmax(0, 1fr) auto;
  }

  .shelf-item-vol {
    grid-column: 2 / -1;
  }

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

  .ranking-item {
    grid-template-columns: 40px 84px minmax(0, 1fr);
    gap: 16px;
  }

  .rank-cover img {
    width: 84px;
    height: 112px;
  }

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

  .guide-step,
  .guide-step-prepare {
    grid-template-columns: minmax(0, 1fr);
    gap: 26px;
  }

  .guide-step-follow .step-media,
  .guide-step-follow .step-text {
    order: 0;
  }

  .principle-item {
    grid-template-columns: 64px minmax(0, 1fr);
    gap: 8px 16px;
  }

  .principle-desc {
    grid-column: 2 / -1;
  }

  .editorial-flow .flow-steps,
  .feedback-flow .flow-steps {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

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

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

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

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

  /* 移动导航：按钮显示，列表默认收起 */
  .nav-toggle {
    display: block;
    margin-left: auto;
  }

  .site-nav {
    flex: 1 0 100%;
    order: 3;
  }

  .site-nav ul {
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    width: 100%;
    padding: 6px 0 12px;
    border-top: 1px solid var(--rule);
  }

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

  .site-nav a {
    padding: 10px 2px;
    min-height: 44px;
    line-height: 24px;
    border-bottom: 1px solid var(--rule);
  }

  .site-nav a.is-current {
    border-bottom-color: var(--vermilion);
  }

  .header-inner {
    padding: 8px var(--gutter);
    row-gap: 0;
  }

  .brand-sub {
    display: none;
  }

  .hero-scene {
    padding: 28px 0 36px;
  }

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

  .scene-card {
    min-height: 0;
  }

  .segment {
    padding: 40px 0;
  }

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

  .update-columns,
  .ranking-columns,
  .genre-index-list,
  .rules-list,
  .checklist-grid,
  .editorial-flow .flow-steps,
  .feedback-flow .flow-steps,
  .role-columns,
  .type-grid,
  .shelf-crosslink-cols,
  .link-note-cols,
  .crosslink-grid,
  .feedback-crosslink .crosslink-grid,
  .error-route-list {
    grid-template-columns: minmax(0, 1fr);
  }

  .shelf-item {
    grid-template-columns: 40px minmax(0, 1fr);
    gap: 6px 12px;
  }

  .shelf-item .tag {
    grid-column: 2 / -1;
    justify-self: start;
  }

  .shelf-item-vol {
    grid-column: 2 / -1;
  }

  .ranking-item {
    grid-template-columns: 36px minmax(0, 1fr);
    gap: 6px 14px;
  }

  .rank-cover {
    grid-column: 2 / -1;
    width: 96px;
  }

  .rank-cover img {
    width: 96px;
    height: 128px;
  }

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

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

  .principle-desc {
    grid-column: auto;
  }

  .notice-figure {
    max-width: 100%;
  }

  .feedback-actions {
    align-items: flex-start;
  }

  .btn-copy,
  .copy-link-btn {
    width: 100%;
  }

  .footer-nav ul {
    flex-direction: column;
    gap: 0;
  }

  .footer-nav a {
    display: block;
    min-height: 44px;
    line-height: 44px;
    border-bottom: 1px solid var(--rule);
  }

  .footer-inner {
    padding: 24px var(--gutter) 32px;
  }
}

/* 动画：仅在允许动效时启用，不影响初始可见性 */
@media (prefers-reduced-motion: no-preference) {
  .segment,
  .shelf-section,
  .ranking-dimension,
  .guide-step,
  .notice-entry {
    animation: fade-up 420ms ease-out both;
  }

  @keyframes fade-up {
    from {
      transform: translateY(10px);
    }

    to {
      transform: translateY(0);
    }
  }
}

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