/* ==========================================================================
   omofun动漫 · 全站样式表
   分组：base / layout / components / pages / responsive
   ========================================================================== */

/* --------------------------------------------------------------------------
   base · 变量与基础排版
   -------------------------------------------------------------------------- */
:root {
  --bg-page: #f6f7f9;
  --bg-card: #ffffff;
  --text-main: #1f2933;
  --text-sub: #5b6b7c;
  --brand: #2f6fd0;
  --brand-dark: #24589f;
  --status: #12a08a;
  --line: #e3e7ec;
  --note-bg: #fff3d6;
  --radius-sm: 6px;
  --radius: 8px;
  --shadow-card: 0 1px 2px rgba(31, 41, 51, 0.05);
  --shadow-hover: 0 4px 12px rgba(31, 41, 51, 0.1);
  --font-cn: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Source Han Sans SC", "Noto Sans CJK SC", sans-serif;
  --font-num: ui-monospace, "SFMono-Regular", "Menlo", "Consolas", monospace;
  --container: 1120px;
  --reading: 760px;
  --aside-w: 300px;
}

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

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

body.site-body {
  margin: 0;
  background-color: var(--bg-page);
  color: var(--text-main);
  font-family: var(--font-cn);
  font-size: 16px;
  line-height: 1.75;
  font-variant-numeric: tabular-nums;
}

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

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

a:hover,
a:focus-visible {
  color: var(--brand-dark);
  text-decoration: underline;
}

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

h1,
h2,
h3,
h4 {
  margin: 0;
  color: var(--text-main);
  line-height: 1.4;
}

p {
  margin: 0;
}

ul,
ol,
dl,
dd {
  margin: 0;
  padding: 0;
}

ul,
ol {
  list-style: none;
}

dl {
  margin-block: 0;
}

figure {
  margin: 0;
}

button {
  font-family: inherit;
  font-size: inherit;
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  padding: 0;
  overflow: hidden;
  clip: rect(0 0 0 0);
  clip-path: inset(50%);
  white-space: nowrap;
  border: 0;
}

/* --------------------------------------------------------------------------
   layout · 顶部事实条 / 页头 / 主导航 / 主容器 / 页脚
   -------------------------------------------------------------------------- */
.fact-bar {
  background-color: #eef2f7;
  border-bottom: 1px solid var(--line);
}

.fact-bar p {
  max-width: var(--container);
  margin: 0 auto;
  padding: 8px 24px;
  font-size: 13px;
  line-height: 1.6;
  color: var(--text-sub);
}

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

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  max-width: var(--container);
  margin: 0 auto;
  padding: 14px 24px;
}

.brand {
  display: flex;
  flex-direction: column;
  gap: 2px;
  color: var(--text-main);
  text-decoration: none;
}

.brand:hover,
.brand:focus-visible {
  color: var(--text-main);
  text-decoration: none;
}

.brand-name {
  font-size: 19px;
  font-weight: 700;
  line-height: 1.3;
}

.brand-tag {
  font-size: 12px;
  line-height: 1.4;
  color: var(--text-sub);
}

.site-nav {
  display: flex;
  align-items: center;
}

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

.nav-list li {
  display: block;
}

.nav-list a {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 0 12px;
  border-radius: var(--radius-sm);
  font-size: 15px;
  color: var(--text-main);
  white-space: nowrap;
}

.nav-list a:hover,
.nav-list a:focus-visible {
  background-color: #eef2f7;
  color: var(--brand-dark);
  text-decoration: none;
}

.nav-list a.is-current {
  color: var(--brand);
  font-weight: 600;
  background-color: #e8f0fc;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  padding: 0 10px;
  background-color: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  cursor: pointer;
}

.nav-toggle-bar {
  display: block;
  width: 100%;
  height: 2px;
  background-color: var(--text-main);
  border-radius: 1px;
}

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

.inner-main {
  padding-top: 20px;
}

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

.footer-inner {
  display: grid;
  grid-template-columns: minmax(220px, 1.4fr) repeat(4, minmax(150px, 1fr));
  gap: 32px 24px;
  max-width: var(--container);
  margin: 0 auto;
  padding: 40px 24px 28px;
}

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

.footer-name {
  font-size: 17px;
  font-weight: 700;
}

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

.footer-title {
  margin-bottom: 10px;
  font-size: 15px;
  font-weight: 600;
}

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

.footer-group a {
  display: inline-block;
  padding: 2px 0;
  font-size: 14px;
  color: var(--text-sub);
}

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

.footer-bottom {
  max-width: var(--container);
  margin: 0 auto;
  padding: 16px 24px 32px;
  border-top: 1px solid var(--line);
  font-size: 13px;
  line-height: 1.7;
  color: var(--text-sub);
}

/* 内页通用骨架：面包屑 / 页面标题区 / 版本标注条 */
.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px;
  margin-bottom: 16px;
  font-size: 13px;
  color: var(--text-sub);
}

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

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

.breadcrumb-sep {
  color: #9aa8b6;
}

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

.page-header {
  padding-bottom: 20px;
  margin-bottom: 28px;
  border-bottom: 1px solid var(--line);
}

.page-title {
  font-size: 32px;
  font-weight: 700;
  line-height: 1.35;
}

.page-description {
  max-width: var(--reading);
  margin-top: 10px;
  font-size: 16px;
  line-height: 1.75;
  color: var(--text-sub);
}

.version-bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 16px;
  margin-top: 16px;
  padding: 10px 14px;
  background-color: #f1f4f8;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  font-size: 13px;
  color: var(--text-sub);
}

.version-label,
.version-tag {
  font-weight: 600;
  color: var(--text-main);
}

.version-tag {
  padding: 2px 8px;
  background-color: #e8f0fc;
  border-radius: var(--radius-sm);
  color: var(--brand-dark);
}

.version-link,
.version-note a {
  color: var(--brand);
}

.version-links {
  display: inline-flex;
  flex-wrap: wrap;
  gap: 8px 16px;
}

/* --------------------------------------------------------------------------
   components · 通用模块头 / 卡片 / 列表 / 步骤 / 表格
   -------------------------------------------------------------------------- */
.section-head {
  margin-bottom: 18px;
}

.section-head h2,
.section-head h3 {
  font-size: 22px;
  font-weight: 600;
}

.section-head p {
  margin-top: 8px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--text-sub);
}

.section-title {
  font-size: 22px;
  font-weight: 600;
}

.section-lead,
.section-desc,
.section-note {
  max-width: var(--reading);
  margin-top: 10px;
  font-size: 15px;
  line-height: 1.75;
  color: var(--text-sub);
}

.section-note {
  font-size: 14px;
}

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

.section {
  margin-bottom: 44px;
}

/* 封面卡（首页与题材页共用结构，作用域区分） */
.cover-grid {
  display: grid;
  gap: 16px;
}

.cover-card {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 12px;
  background-color: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow-card);
  transition: border-color 160ms ease, box-shadow 160ms ease, transform 160ms ease;
}

.cover-card:hover,
.cover-card:focus-within {
  border-color: #c3d3e8;
  box-shadow: var(--shadow-hover);
  transform: translateY(-2px);
}

.cover-card img {
  display: block;
  width: 100%;
  aspect-ratio: 3 / 4;
  object-fit: cover;
  border-radius: var(--radius-sm);
  background-color: #eef2f7;
}

.cover-name {
  font-size: 15px;
  font-weight: 600;
  line-height: 1.5;
}

.cover-genre {
  font-size: 13px;
  color: var(--status);
}

.cover-meta {
  font-size: 13px;
  line-height: 1.7;
  color: var(--text-sub);
}

.cover-link {
  align-self: flex-start;
  margin-top: auto;
  padding-top: 4px;
  font-size: 14px;
  font-weight: 600;
}

/* 更新记录行（首页 ol 与内页 ul 共用行样式） */
.update-row {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 4px 10px;
  padding: 10px 0;
  border-bottom: 1px dashed var(--line);
  font-size: 14px;
}

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

.update-date {
  font-family: var(--font-num);
  font-size: 13px;
  color: var(--text-sub);
}

.update-batch {
  font-family: var(--font-num);
  font-size: 12px;
  padding: 1px 6px;
  background-color: #eef2f7;
  border-radius: var(--radius-sm);
  color: var(--text-sub);
}

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

.update-name {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-main);
}

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

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

/* 位次条目行 */
.rank-row {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 4px 10px;
  padding: 9px 0;
  border-bottom: 1px dashed var(--line);
}

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

.rank-num {
  min-width: 28px;
  font-family: var(--font-num);
  font-size: 15px;
  font-weight: 700;
  color: var(--brand);
}

.rank-name {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-main);
}

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

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

/* 步骤条 */
.step-num,
.flow-num,
.path-step-index {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 30px;
  height: 30px;
  border-radius: 50%;
  background-color: #e8f0fc;
  color: var(--brand-dark);
  font-family: var(--font-num);
  font-size: 14px;
  font-weight: 700;
}

/* 相关入口列表 */
.related-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 10px 20px;
}

.related-list li {
  display: block;
}

.related-list a {
  display: inline-block;
  padding: 6px 0;
  font-size: 15px;
  color: var(--brand);
}

/* 通用按钮（404 页） */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0 20px;
  border-radius: var(--radius);
  font-size: 15px;
  font-weight: 600;
  border: 1px solid transparent;
}

.btn-primary {
  background-color: var(--brand);
  color: #ffffff;
}

.btn-primary:hover,
.btn-primary:focus-visible {
  background-color: var(--brand-dark);
  color: #ffffff;
  text-decoration: none;
}

.btn-ghost {
  background-color: var(--bg-card);
  border-color: var(--line);
  color: var(--text-main);
}

.btn-ghost:hover,
.btn-ghost:focus-visible {
  border-color: var(--brand);
  color: var(--brand);
  text-decoration: none;
}

/* --------------------------------------------------------------------------
   pages · 首页
   -------------------------------------------------------------------------- */
.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
  gap: 40px;
  align-items: center;
  padding: 44px 0 40px;
  border-bottom: 1px solid var(--line);
}

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

.hero-title {
  font-size: 34px;
  font-weight: 700;
  line-height: 1.35;
}

.hero-lead {
  max-width: 560px;
  margin-top: 14px;
  font-size: 16px;
  line-height: 1.8;
  color: var(--text-sub);
}

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

.hero-paths li {
  display: block;
}

.hero-paths a {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 0 16px;
  background-color: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  font-size: 14px;
  font-weight: 600;
  color: var(--text-main);
}

.hero-paths a:hover,
.hero-paths a:focus-visible {
  border-color: var(--brand);
  color: var(--brand);
  text-decoration: none;
}

.hero-note {
  margin-top: 18px;
  font-size: 13px;
  line-height: 1.7;
  color: var(--text-sub);
}

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

.hero-media img {
  display: block;
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background-color: #eef2f7;
}

.hero-media figcaption {
  margin-top: 10px;
  font-size: 13px;
  line-height: 1.7;
  color: var(--text-sub);
}

.genre-overview {
  padding: 40px 0 8px;
}

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

.genre-col {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 18px 16px;
  background-color: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow-card);
  transition: border-color 160ms ease, box-shadow 160ms ease;
}

.genre-col:hover {
  border-color: #c3d3e8;
  box-shadow: var(--shadow-hover);
}

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

.genre-feature {
  font-size: 14px;
  line-height: 1.75;
  color: var(--text-main);
}

.genre-scope {
  font-size: 13px;
  line-height: 1.7;
  color: var(--text-sub);
}

.genre-entry {
  margin-top: auto;
  padding-top: 6px;
  font-size: 13px;
  line-height: 1.7;
}

.home-duo {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: 28px;
  padding: 40px 0 8px;
  border-top: 1px solid var(--line);
}

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

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

.duo-updates {
  padding: 20px 18px;
  background-color: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow-card);
}

.duo-updates .update-list {
  display: block;
}

.duo-more {
  margin-top: 14px;
  font-size: 14px;
}

/* 首页位次与字段口径摘要 */
.duo-rank,
.duo-fields {
  padding: 20px 18px;
  background-color: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow-card);
}

.rank-list {
  display: block;
}

.field-brief {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 10px;
}

.field-brief dt {
  font-size: 14px;
  font-weight: 600;
}

.field-brief dd {
  margin-bottom: 6px;
  font-size: 13px;
  line-height: 1.7;
  color: var(--text-sub);
}

.path-steps {
  padding: 40px 0 8px;
  border-top: 1px solid var(--line);
}

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

.step-col {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 18px 16px;
  background-color: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

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

.step-desc {
  font-size: 14px;
  line-height: 1.75;
  color: var(--text-sub);
}

.site-index {
  padding: 40px 0 8px;
  border-top: 1px solid var(--line);
}

.index-grid {
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  gap: 14px;
}

.index-col {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 14px 12px;
  background-color: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.index-col a {
  font-size: 15px;
  font-weight: 600;
}

.index-col p {
  font-size: 13px;
  line-height: 1.65;
  color: var(--text-sub);
}

/* --------------------------------------------------------------------------
   pages · 题材分类
   -------------------------------------------------------------------------- */
.division-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
  margin-top: 18px;
}

.division-item {
  padding: 18px 16px;
  background-color: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.division-item h3 {
  font-size: 17px;
  font-weight: 600;
}

.division-item p {
  margin-top: 8px;
  font-size: 14px;
  line-height: 1.75;
  color: var(--text-sub);
}

.genre-block {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1.6fr);
  gap: 28px;
  padding: 28px 0;
  border-top: 1px solid var(--line);
}

.genre-info {
  min-width: 0;
}

.genre-info h2 {
  font-size: 22px;
  font-weight: 600;
}

.genre-info > p {
  margin-top: 10px;
  font-size: 14px;
  line-height: 1.75;
  color: var(--text-sub);
}

.genre-meta {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 6px 12px;
  margin-top: 14px;
  font-size: 13px;
}

.genre-meta dt {
  color: var(--text-sub);
}

.genre-meta dd {
  color: var(--text-main);
}

.genre-entry {
  display: inline-block;
  margin-top: 14px;
  font-size: 14px;
  font-weight: 600;
}

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

.genre-block .cover-card figcaption {
  font-size: 13px;
  line-height: 1.6;
  color: var(--text-sub);
}

.choose-steps {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
  margin-top: 18px;
}

.choose-step {
  padding: 16px;
  background-color: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.choose-step h3 {
  font-size: 16px;
  font-weight: 600;
}

.choose-step p {
  margin-top: 8px;
  font-size: 14px;
  line-height: 1.75;
  color: var(--text-sub);
}

.choose-note {
  margin-top: 18px;
  font-size: 14px;
  line-height: 1.75;
  color: var(--text-sub);
}

.choose-note a {
  margin-right: 12px;
}

/* --------------------------------------------------------------------------
   pages · 最近更新
   -------------------------------------------------------------------------- */
.rule-columns {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
  margin-top: 18px;
}

.rule-col {
  padding: 18px 16px;
  background-color: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.rule-col h3 {
  font-size: 16px;
  font-weight: 600;
}

.rule-col p {
  margin-top: 8px;
  font-size: 14px;
  line-height: 1.75;
  color: var(--text-sub);
}

.rule-list {
  margin-top: 10px;
  display: grid;
  gap: 6px;
}

.rule-list li {
  font-size: 14px;
  line-height: 1.7;
  color: var(--text-sub);
}

.update-group {
  padding: 18px 0;
  border-top: 1px solid var(--line);
}

.update-group .update-date {
  font-family: var(--font-num);
  font-size: 15px;
  font-weight: 700;
  color: var(--text-main);
}

.update-rows {
  margin-top: 10px;
  display: grid;
  gap: 10px;
}

.section-update-list .update-row {
  display: grid;
  grid-template-columns: 84px minmax(0, 1fr);
  gap: 14px;
  align-items: start;
  padding: 10px 0;
}

.update-thumb {
  width: 84px;
}

.update-thumb img {
  display: block;
  width: 84px;
  height: 112px;
  object-fit: cover;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background-color: #eef2f7;
}

.update-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 4px 10px;
  min-width: 0;
}

.section-update-list .update-meta a.update-name {
  color: var(--brand);
}

.flow-steps {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
  margin-top: 18px;
}

.flow-step {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 16px;
  background-color: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.flow-name {
  font-size: 16px;
  font-weight: 600;
}

.flow-step p {
  font-size: 14px;
  line-height: 1.75;
  color: var(--text-sub);
}

/* --------------------------------------------------------------------------
   pages · 位次参考
   -------------------------------------------------------------------------- */
.method-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
  margin-top: 18px;
}

.method-col {
  padding: 18px 16px;
  background-color: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.method-col p {
  margin-top: 8px;
  font-size: 14px;
  line-height: 1.75;
  color: var(--text-sub);
}

.method-list {
  margin-top: 10px;
  display: grid;
  gap: 6px;
}

.method-list li {
  font-size: 14px;
  line-height: 1.7;
  color: var(--text-sub);
}

.method-note {
  margin-top: 16px;
  padding: 12px 14px;
  background-color: var(--note-bg);
  border: 1px solid #f0dcae;
  border-radius: var(--radius);
  font-size: 14px;
  line-height: 1.75;
  color: #6b5320;
}

.ranking-list {
  margin-top: 18px;
  background-color: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 6px 16px;
}

.ranking-row {
  display: grid;
  grid-template-columns: 44px 72px minmax(0, 1fr) minmax(0, 1fr);
  gap: 14px;
  align-items: center;
  padding: 12px 0;
  border-bottom: 1px dashed var(--line);
}

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

.rank-thumb {
  width: 72px;
}

.rank-thumb img {
  display: block;
  width: 72px;
  height: 96px;
  object-fit: cover;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background-color: #eef2f7;
}

.rank-main {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 4px 10px;
  min-width: 0;
}

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

.caution-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
  margin-top: 18px;
}

.caution-col {
  padding: 18px 16px;
  background-color: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.caution-list {
  display: grid;
  gap: 8px;
  margin-top: 10px;
}

.caution-list li {
  position: relative;
  padding-left: 16px;
  font-size: 14px;
  line-height: 1.75;
  color: var(--text-sub);
}

.caution-list li::before {
  content: "";
  position: absolute;
  top: 11px;
  left: 0;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background-color: var(--status);
}

/* --------------------------------------------------------------------------
   pages · 条目字段说明
   -------------------------------------------------------------------------- */
.fields-section {
  margin-bottom: 44px;
}

.fields-figure {
  margin-top: 18px;
}

.fields-figure img {
  display: block;
  width: 100%;
  max-width: var(--reading);
  aspect-ratio: 16 / 9;
  object-fit: cover;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background-color: #eef2f7;
}

.fields-figure figcaption {
  margin-top: 10px;
  font-size: 13px;
  line-height: 1.7;
  color: var(--text-sub);
}

.fields-table {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 2fr);
  gap: 24px;
  margin-top: 20px;
}

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

.fields-col-title {
  font-size: 16px;
  font-weight: 600;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--line);
}

.fields-name-list {
  display: grid;
  gap: 0;
}

.fields-name-list li {
  padding: 10px 0;
  border-bottom: 1px dashed var(--line);
  font-size: 14px;
  font-weight: 600;
}

.fields-desc-list dt {
  padding-top: 10px;
  font-size: 14px;
  font-weight: 600;
}

.fields-desc-list dt:first-child {
  padding-top: 0;
}

.fields-desc-list dd {
  padding-bottom: 10px;
  margin-bottom: 0;
  border-bottom: 1px dashed var(--line);
  font-size: 14px;
  line-height: 1.75;
  color: var(--text-sub);
}

.fields-desc-list dd:last-child {
  border-bottom: 0;
}

.fields-source,
.fields-scope {
  margin-top: 20px;
}

.source-item {
  padding: 12px 0;
  border-bottom: 1px dashed var(--line);
  font-size: 14px;
  line-height: 1.75;
  color: var(--text-sub);
}

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

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

.scope-include,
.scope-exclude {
  padding: 18px 16px;
  background-color: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.scope-list {
  display: grid;
  gap: 8px;
  margin-top: 10px;
}

.scope-list li {
  position: relative;
  padding-left: 16px;
  font-size: 14px;
  line-height: 1.75;
  color: var(--text-sub);
}

.scope-include .scope-list li::before {
  content: "";
  position: absolute;
  top: 11px;
  left: 0;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background-color: var(--status);
}

.scope-exclude .scope-list li::before {
  content: "";
  position: absolute;
  top: 11px;
  left: 0;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background-color: #c6ced8;
}

.feedback-steps {
  display: grid;
  gap: 10px;
  margin-top: 14px;
}

.feedback-steps li {
  font-size: 14px;
  line-height: 1.75;
  color: var(--text-sub);
}

/* --------------------------------------------------------------------------
   pages · 查阅路径指引
   -------------------------------------------------------------------------- */
.page-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) var(--aside-w);
  gap: 36px;
  align-items: start;
}

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

.page-aside {
  min-width: 0;
  display: grid;
  gap: 18px;
  position: sticky;
  top: 88px;
}

.aside-block {
  padding: 18px 16px;
  background-color: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.aside-title {
  font-size: 16px;
  font-weight: 600;
}

.aside-link-list {
  display: grid;
  gap: 8px;
  margin-top: 12px;
}

.aside-link-list a {
  display: inline-block;
  padding: 4px 0;
  font-size: 14px;
}

.aside-note p {
  margin-top: 10px;
  font-size: 13px;
  line-height: 1.75;
  color: var(--text-sub);
}

.path-scene-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
  margin-top: 18px;
}

.path-scene-card {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 18px 16px;
  background-color: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.path-scene-name {
  font-size: 16px;
  font-weight: 600;
}

.path-scene-scene,
.path-scene-judge {
  font-size: 14px;
  line-height: 1.75;
  color: var(--text-sub);
}

.link-more {
  margin-top: auto;
  padding-top: 6px;
  font-size: 14px;
  font-weight: 600;
}

.path-figure {
  margin-top: 18px;
}

.path-figure img {
  display: block;
  width: 100%;
  max-width: var(--reading);
  aspect-ratio: 16 / 9;
  object-fit: cover;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background-color: #eef2f7;
}

.path-figure figcaption {
  margin-top: 10px;
  font-size: 13px;
  line-height: 1.7;
  color: var(--text-sub);
}

.path-step-list {
  display: grid;
  gap: 14px;
  margin-top: 20px;
}

.path-step-item {
  display: grid;
  grid-template-columns: 40px minmax(0, 1fr);
  gap: 14px;
  align-items: start;
  padding: 16px;
  background-color: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.path-step-body {
  min-width: 0;
}

.path-step-name {
  font-size: 16px;
  font-weight: 600;
}

.path-step-desc,
.path-step-judge {
  margin-top: 6px;
  font-size: 14px;
  line-height: 1.75;
  color: var(--text-sub);
}

.fallback-list {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
  margin-top: 18px;
}

.fallback-item {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 18px 16px;
  background-color: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.fallback-name {
  font-size: 16px;
  font-weight: 600;
}

.fallback-desc {
  font-size: 14px;
  line-height: 1.75;
  color: var(--text-sub);
}

.faq-list {
  display: grid;
  gap: 10px;
  margin-top: 18px;
}

.faq-item {
  background-color: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 0 16px;
}

.faq-question {
  padding: 14px 0;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  list-style: none;
}

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

.faq-question::after {
  content: "+";
  float: right;
  font-weight: 700;
  color: var(--brand);
}

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

.faq-answer {
  padding: 0 0 14px;
  border-top: 1px dashed var(--line);
  font-size: 14px;
  line-height: 1.75;
  color: var(--text-sub);
}

.faq-answer p {
  margin-top: 12px;
}

.feedback-list {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
  margin-top: 18px;
}

.feedback-item {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 18px 16px;
  background-color: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.feedback-name {
  font-size: 16px;
  font-weight: 600;
}

.feedback-desc {
  font-size: 14px;
  line-height: 1.75;
  color: var(--text-sub);
}

/* --------------------------------------------------------------------------
   pages · 404
   -------------------------------------------------------------------------- */
.error-main {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px 56px;
}

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

.error-main .container {
  padding: 0;
}

.error-hero {
  padding: 56px 0 40px;
  border-bottom: 1px solid var(--line);
}

.error-inner {
  max-width: var(--reading);
}

.error-code {
  font-family: var(--font-num);
  font-size: 15px;
  font-weight: 700;
  color: var(--brand);
}

.error-title {
  margin-top: 10px;
  font-size: 32px;
  font-weight: 700;
  line-height: 1.35;
}

.error-text {
  margin-top: 12px;
  font-size: 16px;
  line-height: 1.8;
  color: var(--text-sub);
}

.error-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 22px;
}

.error-paths {
  padding: 40px 0 8px;
}

.error-path-list {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
  margin-top: 18px;
}

.error-path-item {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 16px;
  background-color: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.error-path-item a {
  font-size: 15px;
  font-weight: 600;
}

.error-path-item p {
  font-size: 13px;
  line-height: 1.65;
  color: var(--text-sub);
}

/* --------------------------------------------------------------------------
   responsive · 960px 与 640px 断点
   -------------------------------------------------------------------------- */
@media (max-width: 960px) {
  .header-inner {
    flex-wrap: wrap;
    gap: 12px;
  }

  .nav-toggle {
    display: flex;
  }

  .site-nav {
    flex-basis: 100%;
    width: 100%;
  }

  .nav-list {
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 2px;
    padding: 10px 0 4px;
    border-top: 1px solid var(--line);
  }

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

  .nav-list a {
    justify-content: flex-start;
    padding: 0 8px;
  }

  .hero {
    grid-template-columns: minmax(0, 1fr);
    gap: 26px;
    padding: 32px 0 30px;
  }

  .hero-title {
    font-size: 30px;
  }

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

  .home-duo {
    grid-template-columns: minmax(0, 1fr);
    gap: 24px;
  }

  .step-grid,
  .choose-steps,
  .flow-steps,
  .path-scene-grid,
  .fallback-list,
  .feedback-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

  .genre-block {
    grid-template-columns: minmax(0, 1fr);
    gap: 20px;
  }

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

  .division-grid,
  .rule-columns,
  .method-grid,
  .caution-grid {
    grid-template-columns: minmax(0, 1fr);
  }

  .ranking-row {
    grid-template-columns: 40px 64px minmax(0, 1fr);
  }

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

  .rank-thumb {
    width: 64px;
  }

  .rank-thumb img {
    width: 64px;
    height: 86px;
  }

  .fields-table {
    grid-template-columns: minmax(0, 1fr);
    gap: 18px;
  }

  .page-layout {
    grid-template-columns: minmax(0, 1fr);
    gap: 28px;
  }

  .page-aside {
    position: static;
  }

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

  .footer-inner {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 26px 20px;
  }
}

@media (max-width: 640px) {
  body.site-body {
    font-size: 15px;
  }

  .fact-bar p {
    padding: 8px 16px;
  }

  .header-inner {
    padding: 12px 16px;
  }

  .site-main,
  .error-main {
    padding-left: 16px;
    padding-right: 16px;
  }

  .container {
    padding-left: 16px;
    padding-right: 16px;
  }

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

  .hero-paths {
    gap: 8px;
  }

  .hero-paths a {
    flex: 1 1 100%;
    justify-content: center;
  }

  .genre-grid,
  .step-grid,
  .choose-steps,
  .flow-steps,
  .path-scene-grid,
  .fallback-list,
  .feedback-list,
  .division-grid,
  .rule-columns,
  .method-grid,
  .caution-grid {
    grid-template-columns: minmax(0, 1fr);
  }

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

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

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

  .section-title,
  .section-head h2,
  .section-head h3,
  .genre-info h2 {
    font-size: 20px;
  }

  .section-update-list .update-row {
    grid-template-columns: 64px minmax(0, 1fr);
    gap: 10px;
  }

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

  .update-thumb img {
    height: 86px;
  }

  .ranking-row {
    grid-template-columns: 32px 56px minmax(0, 1fr);
    gap: 10px;
  }

  .rank-thumb,
  .rank-thumb img {
    width: 56px;
  }

  .rank-thumb img {
    height: 76px;
  }

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

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

  .footer-inner {
    grid-template-columns: minmax(0, 1fr);
    padding: 32px 16px 24px;
  }

  .footer-bottom {
    padding: 14px 16px 28px;
  }
}

/* 尊重系统减少动效偏好 */
@media (prefers-reduced-motion: reduce) {
  .cover-card,
  .genre-col {
    transition: none;
  }

  .cover-card:hover,
  .cover-card:focus-within {
    transform: none;
  }
}