/* ==========================================================================
   91吃瓜网站 · 全站样式表
   深墨底城市地图风 / 题材色标 / 列表面板式内容站
   --------------------------------------------------------------------------
   分组：base → layout → components → pages → responsive
   ========================================================================== */

/* ==========================================================================
   base
   ========================================================================== */

:root {
  --bg: #11141b;
  --panel: #1a1f2b;
  --panel-soft: #161b25;
  --line: #262d3d;
  --line-soft: #1f2532;
  --text: #e9edf5;
  --text-dim: #98a2b8;
  --accent: #57d9b0;
  --accent-soft: rgba(87, 217, 176, 0.14);
  --genre-hot: #ff8f5e;
  --genre-mystery: #6f9cff;
  --genre-daily: #f2c75c;
  --genre-fantasy: #b78cff;
  --genre-scifi: #5fd0e0;
  --genre-healing: #8ed49a;
  --status-new: #57d9b0;
  --status-ongoing: #6f9cff;
  --status-done: #f2c75c;
  --warn: #ff7a7a;
  --radius: 6px;
  --radius-sm: 4px;
  --container: 1180px;
  --gutter: 20px;
  --header-h: 64px;
  --font-mono: "SFMono-Regular", "Menlo", "Consolas", "Liberation Mono", monospace;
}

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

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

body.site-body {
  margin: 0;
  background-color: var(--bg);
  color: var(--text);
  font-family: "PingFang SC", "Microsoft YaHei", "Source Han Sans SC", "Noto Sans SC", sans-serif;
  font-size: 16px;
  line-height: 1.8;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

h1,
h2,
h3,
h4 {
  margin: 0;
  font-weight: 600;
  line-height: 1.4;
  color: var(--text);
}

h2 {
  font-size: 22px;
}

h3 {
  font-size: 18px;
}

p {
  margin: 0 0 12px;
}

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

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

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

a:hover {
  color: #7fe7c5;
}

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

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

figure {
  margin: 0;
}

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

strong {
  color: var(--text);
  font-weight: 600;
}

/* 通用容器：整站统一最大宽度与左右内边距 */
.header-inner,
.hero-layout,
.page-layout,
.footer-inner,
.genre-usage-inner,
.stage-section,
.stage-advice,
.related-strip,
.timeline-section,
.status-legend,
.follow-tips,
.related-entry,
.topic-stream,
.topic-guide,
.guide-flow,
.guide-terms,
.guide-faq,
.guide-next,
.rank-entry-band,
.error-panel,
.error-guide {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding-left: var(--gutter);
  padding-right: var(--gutter);
}

/* ==========================================================================
   layout · 全站骨架
   ========================================================================== */

/* 页头 */
.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  background-color: rgba(17, 20, 27, 0.94);
  border-bottom: 1px solid var(--line);
  backdrop-filter: saturate(140%) blur(6px);
}

.site-header .header-inner {
  display: flex;
  align-items: center;
  gap: 16px;
  min-height: var(--header-h);
}

.site-header .brand {
  flex: 0 0 auto;
  color: var(--text);
  font-size: 19px;
  font-weight: 700;
  letter-spacing: 0.02em;
  padding: 6px 0;
}

.site-header .brand:hover {
  color: var(--accent);
}

/* 主导航 */
.site-nav {
  margin-left: auto;
}

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

.site-nav .nav-list a {
  display: block;
  padding: 8px 12px;
  color: var(--text-dim);
  font-size: 15px;
  border-radius: var(--radius-sm);
  border-bottom: 2px solid transparent;
}

.site-nav .nav-list a:hover {
  color: var(--text);
  background-color: var(--panel);
}

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

/* 汉堡按钮（桌面隐藏） */
.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  padding: 10px;
  margin-left: auto;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
}

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

/* 主内容 */
.site-main {
  display: block;
  padding-bottom: 56px;
}

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

/* 面包屑 */
.breadcrumb {
  max-width: var(--container);
  margin: 0 auto;
  padding: 14px var(--gutter) 0;
  font-size: 14px;
  color: var(--text-dim);
}

.breadcrumb .breadcrumb-list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px;
}

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

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

.breadcrumb .breadcrumb-sep {
  color: #5c667d;
}

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

/* 页面标题区 */
.page-header {
  max-width: var(--container);
  margin: 0 auto;
  padding: 18px var(--gutter) 0;
}

.page-title {
  font-size: clamp(28px, 3vw, 36px);
  font-weight: 700;
  line-height: 1.3;
}

.page-head {
  max-width: var(--container);
  margin: 0 auto;
  padding: 10px var(--gutter) 0;
}

.page-head-inner {
  max-width: 860px;
}

.page-head-lead,
.page-lead {
  color: var(--text-dim);
  font-size: 16px;
  margin: 0;
  max-width: 860px;
}

/* 两栏布局（主内容在前，侧栏在后） */
.page-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 340px;
  gap: 32px;
  align-items: start;
  margin-top: 28px;
}

.page-layout.sidebar-right {
  grid-template-columns: minmax(0, 1fr) 340px;
}

.layout-main,
.rank-main,
.content-main,
.update-feed {
  min-width: 0;
}

.layout-side,
.rank-side,
.content-aside,
.rank-aside {
  min-width: 0;
}

/* 侧栏吸附 */
.layout-side,
.rank-side,
.rank-aside {
  position: sticky;
  top: calc(var(--header-h) + 16px);
}

/* 页脚 */
.site-footer {
  margin-top: 56px;
  border-top: 1px solid var(--line);
  background-color: var(--panel-soft);
}

.site-footer .footer-inner {
  padding-top: 32px;
  padding-bottom: 20px;
}

.footer-top {
  padding-bottom: 20px;
  border-bottom: 1px solid var(--line-soft);
}

.footer-slogan {
  margin: 0 0 6px;
  color: var(--text);
  font-size: 16px;
}

.footer-brand {
  margin: 0;
  color: var(--text-dim);
  font-size: 14px;
}

.footer-columns {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 28px;
  padding: 24px 0;
}

.footer-col-title {
  margin: 0 0 12px;
  font-size: 15px;
  color: var(--text);
}

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

.footer-list a {
  color: var(--text-dim);
  font-size: 14px;
}

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

.footer-note {
  color: var(--text-dim);
  font-size: 14px;
  margin: 0 0 10px;
}

.footer-bottom {
  padding-top: 16px;
  border-top: 1px solid var(--line-soft);
}

.footer-copy {
  margin: 0;
  color: #6f7a90;
  font-size: 13px;
}

/* 跳转链接（无障碍） */
.skip-link {
  position: absolute;
  left: 12px;
  top: -60px;
  z-index: 60;
  padding: 10px 16px;
  background-color: var(--accent);
  color: #0d1017;
  border-radius: var(--radius-sm);
  font-size: 14px;
  transition: top 0.18s ease;
}

.skip-link:focus {
  top: 12px;
  color: #0d1017;
}

/* ==========================================================================
   components · 通用组件
   ========================================================================== */

/* 区块标题与说明 */
.section-title {
  font-size: 22px;
  margin: 0 0 8px;
}

.section-lead,
.section-intro {
  color: var(--text-dim);
  font-size: 15px;
  margin: 0 0 20px;
  max-width: 820px;
}

/* 按钮 */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 10px 22px;
  border-radius: var(--radius);
  font-size: 15px;
  font-weight: 600;
  border: 1px solid transparent;
}

.btn-primary {
  background-color: var(--accent);
  color: #0d1017;
}

.btn-primary:hover {
  background-color: #7fe7c5;
  color: #0d1017;
}

.btn-ghost {
  border-color: var(--line);
  color: var(--text);
}

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

/* 面板 */
.genre-map,
.aside-panel,
.heat-panel,
.rule-panel,
.aside-block,
.stage-panel,
.content-block,
.error-panel,
.error-guide {
  background-color: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.genre-map {
  padding: 20px;
}

.panel-title {
  font-size: 17px;
  margin: 0 0 14px;
}

/* 题材色标 */
.genre-swatch {
  display: inline-block;
  width: 10px;
  height: 10px;
  flex: 0 0 auto;
  border-radius: 2px;
  background-color: var(--text-dim);
}

.genre-swatch-hot,
.genre-hot .genre-swatch {
  background-color: var(--genre-hot);
}

.genre-swatch-mystery,
.genre-mystery .genre-swatch {
  background-color: var(--genre-mystery);
}

.genre-swatch-daily,
.genre-daily .genre-swatch {
  background-color: var(--genre-daily);
}

.genre-swatch-fantasy,
.genre-fantasy .genre-swatch {
  background-color: var(--genre-fantasy);
}

.genre-scifi .genre-swatch {
  background-color: var(--genre-scifi);
}

.genre-healing .genre-swatch {
  background-color: var(--genre-healing);
}

/* 状态词 */
.status-new {
  color: var(--status-new);
}

.status-ongoing {
  color: var(--status-ongoing);
}

.status-done {
  color: var(--status-done);
}

.status-tag {
  display: inline-block;
  padding: 1px 8px;
  font-size: 12px;
  border-radius: 999px;
  border: 1px solid currentColor;
  line-height: 1.6;
}

.status-dot {
  display: inline-block;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background-color: currentColor;
}

/* 题材标签 */
.tag {
  display: inline-block;
  padding: 1px 8px;
  font-size: 12px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--line);
  color: var(--text-dim);
}

.tag-hot {
  color: var(--genre-hot);
  border-color: rgba(255, 143, 94, 0.4);
}

.tag-suspense {
  color: var(--genre-mystery);
  border-color: rgba(111, 156, 255, 0.4);
}

.tag-daily {
  color: var(--genre-daily);
  border-color: rgba(242, 199, 92, 0.4);
}

.tag-fantasy {
  color: var(--genre-fantasy);
  border-color: rgba(183, 140, 255, 0.4);
}

/* 图片容器通用约束 */
.hero-figure img,
.work-cover img,
.topic-figure img,
.work-thumb img,
.timeline-figure img,
.genre-map-figure img,
.content-figure img,
.guide-figure img,
.rank-thumb {
  width: 100%;
  height: 100%;
  object-fit: cover;
  background-color: var(--panel-soft);
}

/* 更多链接 */
.feed-more,
.rank-more,
.aside-more,
.usage-more,
.rule-foot,
.stage-link,
.topic-order {
  margin: 16px 0 0;
  font-size: 14px;
}

/* 分隔列表通用 */
.advice-list,
.usage-list,
.tips-list,
.guide-list,
.scope-list,
.principle-list,
.adjacent-list,
.order-list,
.legend-list,
.entry-list,
.related-list,
.related-entry-list,
.next-links,
.entry-links,
.aside-link-list {
  display: block;
}

/* ==========================================================================
   pages · 首页
   ========================================================================== */

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

/* 首屏 */
.hero {
  max-width: var(--container);
  margin: 0 auto;
  padding: 32px var(--gutter) 8px;
}

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

.hero-text h1 {
  font-size: clamp(28px, 3vw, 36px);
  font-weight: 700;
  line-height: 1.3;
  margin: 0 0 16px;
}

.hero-lead {
  color: var(--text-dim);
  font-size: 16px;
  max-width: 520px;
  margin: 0 0 24px;
}

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

.hero-panel {
  display: flex;
  flex-direction: column;
  gap: 20px;
  min-width: 0;
}

.genre-map-list {
  display: grid;
  gap: 12px;
}

.genre-item {
  display: grid;
  grid-template-columns: 10px minmax(0, 1fr);
  gap: 10px 12px;
  align-items: start;
  padding: 10px 0;
  border-top: 1px solid var(--line-soft);
}

.genre-item:first-child {
  border-top: 0;
  padding-top: 0;
}

.genre-item .genre-name {
  font-size: 15px;
  font-weight: 600;
  margin: 0;
}

.genre-item .genre-desc {
  grid-column: 2;
  margin: 0;
  color: var(--text-dim);
  font-size: 14px;
  line-height: 1.7;
}

.hero-figure {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  aspect-ratio: 16 / 10;
}

/* 题材标签筛选条 */
.tag-filter {
  max-width: var(--container);
  margin: 0 auto;
  padding: 24px var(--gutter) 0;
}

.tag-filter-list {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 10px;
}

.tag-chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  min-height: 44px;
  padding: 8px 16px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--text-dim);
  font-size: 14px;
  background-color: var(--panel-soft);
}

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

.tag-chip[aria-pressed="true"],
.tag-chip.is-active {
  color: #0d1017;
  background-color: var(--accent);
  border-color: var(--accent);
}

.tag-filter-hint {
  margin: 0;
  color: #6f7a90;
  font-size: 13px;
}

/* 首页主内容两栏 */
.home-main .page-layout {
  margin-top: 32px;
}

/* 最近更新清单 */
.update-feed .section-title {
  margin-bottom: 6px;
}

.work-card-list {
  display: grid;
  gap: 14px;
  margin-top: 18px;
}

.work-card {
  display: grid;
  grid-template-columns: 96px minmax(0, 1fr);
  gap: 16px;
  align-items: center;
  padding: 12px;
  background-color: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  transition: transform 0.18s ease, border-color 0.18s ease;
}

.work-card:hover {
  transform: translateY(-2px);
  border-color: var(--accent);
}

.work-cover {
  width: 96px;
  aspect-ratio: 3 / 4;
  border-radius: var(--radius-sm);
  overflow: hidden;
  border: 1px solid var(--line-soft);
}

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

.work-name {
  font-size: 16px;
  font-weight: 600;
  margin: 0 0 8px;
}

.work-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0;
  color: var(--text-dim);
  font-size: 13px;
}

.work-genre {
  color: var(--text-dim);
}

.work-status {
  color: var(--accent);
}

/* 侧栏榜单 */
.rank-aside .rank-list {
  margin-top: 14px;
}

.rank-row {
  display: grid;
  grid-template-columns: 34px minmax(0, 1fr) auto;
  gap: 10px;
  align-items: center;
  padding: 10px 0;
  border-top: 1px solid var(--line-soft);
}

.rank-row:first-child {
  border-top: 0;
}

.rank-no,
.rank-num {
  font-family: var(--font-mono);
  font-size: 20px;
  color: var(--accent);
  line-height: 1;
}

.rank-name,
.rank-title {
  min-width: 0;
  color: var(--text);
  font-size: 15px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.rank-name a,
.rank-title a {
  color: var(--text);
}

.rank-name a:hover,
.rank-title a:hover {
  color: var(--accent);
}

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

/* 时间轴摘要 */
.timeline-brief {
  margin-top: 56px;
}

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

.timeline-node {
  position: relative;
  padding: 16px;
  background-color: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.node-status {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 20px;
  font-weight: 600;
  line-height: 1.2;
  margin-bottom: 8px;
}

.node-desc {
  margin: 0 0 10px;
  color: var(--text-dim);
  font-size: 14px;
}

.node-work a {
  font-size: 14px;
}

/* 专题入口 */
.featured-topics {
  margin-top: 56px;
}

.topic-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 24px;
  margin-top: 18px;
}

.topic-card {
  display: flex;
  flex-direction: column;
  background-color: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  transition: transform 0.18s ease, border-color 0.18s ease;
}

.topic-card:hover {
  transform: translateY(-2px);
  border-color: var(--accent);
}

.topic-card .topic-figure {
  aspect-ratio: 16 / 9;
  overflow: hidden;
  border-bottom: 1px solid var(--line-soft);
}

.topic-card .topic-name {
  margin: 16px 16px 8px;
  font-size: 18px;
}

.topic-card .topic-name a {
  color: var(--text);
}

.topic-card .topic-name a:hover {
  color: var(--accent);
}

.topic-card .topic-desc {
  margin: 0 16px 12px;
  color: var(--text-dim);
  font-size: 14px;
}

.topic-card .topic-order {
  margin: auto 16px 16px;
  font-size: 14px;
}

/* 阶段入口 */
.stage-entry {
  margin-top: 56px;
}

.stage-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 20px;
  margin-top: 18px;
}

.stage-panel {
  padding: 20px;
}

.stage-name {
  font-size: 18px;
  margin: 0 0 10px;
}

.stage-desc {
  margin: 0 0 14px;
  color: var(--text-dim);
  font-size: 14px;
}

.stage-link {
  margin: 0;
}

/* 阅读指南入口 */
.guide-entry {
  margin-top: 56px;
}

.guide-columns {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 28px;
  margin-top: 16px;
  padding-top: 20px;
  border-top: 1px solid var(--line);
}

.guide-col-title {
  font-size: 17px;
  margin: 0 0 8px;
}

.guide-col-title a {
  color: var(--text);
}

.guide-col-title a:hover {
  color: var(--accent);
}

.guide-col-desc {
  margin: 0;
  color: var(--text-dim);
  font-size: 14px;
}

/* ==========================================================================
   pages · 分类图谱
   ========================================================================== */

.genre-map-figure {
  margin: 0 0 20px;
  border: 1px solid var(--line-soft);
  border-radius: var(--radius);
  overflow: hidden;
}

.genre-map-figure img {
  width: 100%;
  aspect-ratio: 16 / 9;
}

.genre-map-figure figcaption {
  padding: 10px 14px;
  color: var(--text-dim);
  font-size: 13px;
  background-color: var(--panel-soft);
  border-top: 1px solid var(--line-soft);
}

.genre-map-list {
  display: grid;
  gap: 14px;
}

.genre-map-item {
  display: grid;
  grid-template-columns: 10px minmax(0, 1fr);
  gap: 12px;
  align-items: start;
  padding: 14px;
  background-color: var(--panel-soft);
  border: 1px solid var(--line-soft);
  border-radius: var(--radius-sm);
}

.genre-map-body {
  min-width: 0;
}

.genre-map-name {
  font-size: 16px;
  font-weight: 600;
  margin: 0 0 6px;
}

.genre-map-desc {
  margin: 0 0 8px;
  color: var(--text-dim);
  font-size: 14px;
}

.genre-map-tags {
  margin: 0;
  color: #6f7a90;
  font-size: 13px;
}

/* 题材详情面板 */
.genre-detail {
  margin-top: 40px;
}

.genre-detail-panel {
  padding: 18px;
  margin-top: 16px;
  background-color: var(--panel);
  border: 1px solid var(--line);
  border-left: 3px solid var(--line);
  border-radius: var(--radius);
}

.genre-detail-panel.genre-hot {
  border-left-color: var(--genre-hot);
}

.genre-detail-panel.genre-mystery {
  border-left-color: var(--genre-mystery);
}

.genre-detail-panel.genre-daily {
  border-left-color: var(--genre-daily);
}

.genre-detail-panel.genre-fantasy {
  border-left-color: var(--genre-fantasy);
}

.genre-detail-panel.genre-scifi {
  border-left-color: var(--genre-scifi);
}

.genre-detail-panel.genre-healing {
  border-left-color: var(--genre-healing);
}

.genre-detail-name {
  font-size: 17px;
  margin: 0 0 12px;
}

.genre-work-list {
  display: grid;
  gap: 8px;
}

.genre-work-item {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 12px;
  align-items: center;
  padding: 8px 0;
  border-top: 1px solid var(--line-soft);
  font-size: 14px;
  color: var(--text-dim);
}

.genre-work-item:first-child {
  border-top: 0;
}

/* 侧栏面板 */
.aside-panel {
  padding: 20px;
  margin-bottom: 24px;
}

.aside-title {
  font-size: 17px;
  margin: 0 0 8px;
}

.aside-lead {
  margin: 0 0 16px;
  color: var(--text-dim);
  font-size: 14px;
}

.aside-subtitle {
  font-size: 15px;
  margin: 18px 0 10px;
  color: var(--text);
}

.adjacent-list {
  display: grid;
  gap: 10px;
}

.adjacent-item {
  display: grid;
  grid-template-columns: 10px minmax(0, 1fr);
  gap: 10px;
  align-items: center;
  font-size: 14px;
  color: var(--text-dim);
}

.order-list {
  display: grid;
  gap: 10px;
  counter-reset: order;
}

.order-item {
  display: grid;
  grid-template-columns: 24px minmax(0, 1fr);
  gap: 10px;
  align-items: start;
  font-size: 14px;
  color: var(--text-dim);
  line-height: 1.7;
}

.order-item::before {
  counter-increment: order;
  content: counter(order);
  font-family: var(--font-mono);
  font-size: 14px;
  color: var(--accent);
  line-height: 1.7;
}

.aside-link-list {
  display: grid;
  gap: 10px;
}

.aside-link-list a {
  font-size: 14px;
}

/* 题材标签用法说明 */
.genre-usage {
  margin-top: 56px;
}

.genre-usage-inner {
  padding-top: 24px;
  border-top: 1px solid var(--line);
}

.usage-list {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 20px;
  margin-top: 16px;
}

.usage-item {
  padding: 16px;
  background-color: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  color: var(--text-dim);
  font-size: 14px;
}

/* ==========================================================================
   pages · 作品索引
   ========================================================================== */

.stage-section {
  margin-top: 44px;
}

.stage-head {
  padding-bottom: 14px;
  border-bottom: 1px solid var(--line);
  margin-bottom: 10px;
}

.stage-head h2 {
  font-size: 24px;
  margin: 0 0 8px;
}

.stage-head .stage-desc {
  margin: 0;
  color: var(--text-dim);
  font-size: 15px;
}

.work-row-list {
  display: block;
}

.work-row {
  display: grid;
  grid-template-columns: 84px minmax(0, 1fr);
  gap: 18px;
  align-items: start;
  padding: 16px 0;
  border-bottom: 1px solid var(--line-soft);
}

.work-thumb {
  width: 84px;
  aspect-ratio: 3 / 4;
  border-radius: var(--radius-sm);
  overflow: hidden;
  border: 1px solid var(--line-soft);
}

.work-row-body {
  min-width: 0;
}

.work-row-title {
  font-size: 17px;
  margin: 0 0 8px;
}

.work-row-title a {
  color: var(--text);
}

.work-row-title a:hover {
  color: var(--accent);
}

.work-row-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
  margin: 0 0 8px;
  font-size: 13px;
  color: var(--text-dim);
}

.work-stage {
  color: var(--text-dim);
}

.work-row-note {
  margin: 0;
  color: var(--text-dim);
  font-size: 14px;
}

.stage-advice {
  margin-top: 56px;
  padding-top: 24px;
  border-top: 1px solid var(--line);
}

.advice-list {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 20px;
  margin-top: 16px;
}

.advice-item {
  padding: 16px;
  background-color: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.advice-item h3 {
  font-size: 16px;
  margin: 0 0 8px;
}

.advice-item p {
  margin: 0;
  color: var(--text-dim);
  font-size: 14px;
}

.stage-advice-links {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
  margin: 20px 0 0;
  font-size: 14px;
}

/* 相关入口带 */
.related-strip {
  margin-top: 56px;
  padding-top: 24px;
  border-top: 1px solid var(--line);
}

.related-list {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
  margin-top: 14px;
}

.related-list a {
  font-size: 15px;
}

/* ==========================================================================
   pages · 连载进度
   ========================================================================== */

.timeline-section {
  margin-top: 36px;
}

.timeline-list {
  position: relative;
  display: grid;
  gap: 28px;
  margin-top: 20px;
  padding-left: 26px;
}

.timeline-list::before {
  content: "";
  position: absolute;
  left: 5px;
  top: 6px;
  bottom: 6px;
  width: 4px;
  background-color: var(--line);
  border-radius: 2px;
}

.timeline-item {
  position: relative;
  display: grid;
  grid-template-columns: 160px minmax(0, 1fr);
  gap: 20px;
  align-items: start;
}

.timeline-item::before {
  content: "";
  position: absolute;
  left: -26px;
  top: 8px;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background-color: var(--bg);
  border: 3px solid var(--accent);
}

.timeline-figure {
  width: 160px;
  aspect-ratio: 4 / 3;
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--line);
}

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

.timeline-status {
  font-family: var(--font-mono);
  font-size: 20px;
  font-weight: 600;
  line-height: 1.2;
  margin: 0 0 8px;
}

.timeline-title {
  font-size: 18px;
  margin: 0 0 8px;
}

.timeline-desc {
  margin: 0 0 10px;
  color: var(--text-dim);
  font-size: 15px;
}

.timeline-work {
  margin: 0;
  font-size: 14px;
}

.status-legend {
  margin-top: 56px;
  padding-top: 24px;
  border-top: 1px solid var(--line);
}

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

.legend-item {
  padding: 16px;
  background-color: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.legend-term {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 16px;
  margin: 0 0 8px;
}

.legend-desc {
  margin: 0;
  color: var(--text-dim);
  font-size: 14px;
}

.follow-tips {
  margin-top: 56px;
  padding-top: 24px;
  border-top: 1px solid var(--line);
}

.tips-list {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 20px;
  margin-top: 16px;
}

.tip-item {
  padding: 16px;
  background-color: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.tip-title {
  font-size: 16px;
  margin: 0 0 8px;
}

.tip-desc {
  margin: 0;
  color: var(--text-dim);
  font-size: 14px;
}

.related-entry {
  margin-top: 56px;
  padding-top: 24px;
  border-top: 1px solid var(--line);
}

.entry-list {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
  margin-top: 14px;
}

.entry-list a {
  font-size: 15px;
}

/* ==========================================================================
   pages · 人气排行
   ========================================================================== */

.rank-segment {
  padding: 20px;
  margin-bottom: 24px;
  background-color: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.segment-head {
  padding-bottom: 12px;
  border-bottom: 1px solid var(--line-soft);
  margin-bottom: 6px;
}

.segment-head h2 {
  font-size: 20px;
  margin: 0 0 6px;
}

.segment-note {
  margin: 0;
  color: var(--text-dim);
  font-size: 14px;
}

.rank-main .rank-row {
  display: grid;
  grid-template-columns: 40px 48px minmax(0, 1fr) auto auto;
  gap: 12px;
  align-items: center;
  padding: 10px 0;
  border-top: 1px solid var(--line-soft);
}

.rank-main .rank-row:first-child {
  border-top: 0;
}

.rank-thumb {
  width: 48px;
  height: 62px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--line-soft);
}

.rank-main .rank-genre {
  padding: 1px 8px;
  font-size: 12px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--line);
  color: var(--text-dim);
  white-space: nowrap;
}

.rank-main .rank-genre.genre-action {
  color: var(--genre-hot);
  border-color: rgba(255, 143, 94, 0.4);
}

.rank-main .rank-genre.genre-fantasy {
  color: var(--genre-fantasy);
  border-color: rgba(183, 140, 255, 0.4);
}

.rank-main .rank-genre.genre-mystery {
  color: var(--genre-mystery);
  border-color: rgba(111, 156, 255, 0.4);
}

.rank-main .rank-genre.genre-slice {
  color: var(--genre-daily);
  border-color: rgba(242, 199, 92, 0.4);
}

.rank-main .rank-genre.genre-mix {
  color: var(--genre-scifi);
  border-color: rgba(95, 208, 224, 0.4);
}

.rank-trend {
  font-size: 13px;
  white-space: nowrap;
}

.trend-up {
  color: var(--status-new);
}

.trend-down {
  color: var(--warn);
}

.trend-flat {
  color: var(--text-dim);
}

/* 侧栏热度与规则 */
.heat-panel,
.rule-panel {
  padding: 20px;
  margin-bottom: 24px;
}

.heat-note {
  margin: 0 0 14px;
  color: var(--text-dim);
  font-size: 14px;
}

.heat-list {
  display: grid;
  gap: 10px;
}

.heat-row {
  display: grid;
  grid-template-columns: 10px minmax(0, 1fr) auto;
  gap: 10px;
  align-items: center;
  font-size: 14px;
  color: var(--text-dim);
}

.heat-mark {
  display: inline-block;
  width: 10px;
  height: 10px;
  border-radius: 2px;
  background-color: var(--text-dim);
}

.heat-mark.genre-action {
  background-color: var(--genre-hot);
}

.heat-mark.genre-fantasy {
  background-color: var(--genre-fantasy);
}

.heat-mark.genre-mystery {
  background-color: var(--genre-mystery);
}

.heat-mark.genre-slice {
  background-color: var(--genre-daily);
}

.heat-mark.genre-mix {
  background-color: var(--genre-scifi);
}

.heat-name {
  min-width: 0;
  color: var(--text);
}

.rule-list {
  display: grid;
  gap: 14px;
  counter-reset: rule;
}

.rule-item {
  padding-left: 34px;
  position: relative;
}

.rule-item::before {
  counter-increment: rule;
  content: counter(rule);
  position: absolute;
  left: 0;
  top: 2px;
  font-family: var(--font-mono);
  font-size: 15px;
  color: var(--accent);
}

.rule-item h3 {
  font-size: 15px;
  margin: 0 0 6px;
}

.rule-item p {
  margin: 0;
  color: var(--text-dim);
  font-size: 14px;
}

.rule-foot {
  margin: 16px 0 0;
  font-size: 14px;
}

.rank-entry-band {
  margin-top: 56px;
  padding-top: 24px;
  border-top: 1px solid var(--line);
}

.rank-entry-note {
  margin: 0;
  color: var(--text-dim);
  font-size: 15px;
}

.entry-links {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
  margin-top: 14px;
}

.entry-links a {
  font-size: 15px;
}

/* ==========================================================================
   pages · 专题合集
   ========================================================================== */

.topic-stream {
  margin-top: 28px;
}

.topic-block {
  display: grid;
  grid-template-columns: 300px minmax(0, 1fr);
  gap: 28px;
  align-items: start;
  padding: 28px 0;
  border-bottom: 1px solid var(--line);
}

.topic-block:first-child {
  padding-top: 0;
}

.topic-block .topic-figure {
  width: 300px;
  aspect-ratio: 4 / 3;
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--line);
}

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

.topic-body h2 {
  font-size: 20px;
  margin: 0 0 10px;
}

.topic-note {
  margin: 0 0 16px;
  color: var(--text-dim);
  font-size: 15px;
}

.topic-order-list {
  display: grid;
  gap: 10px;
  counter-reset: torder;
}

.topic-order-item {
  display: grid;
  grid-template-columns: 26px minmax(0, 1fr) auto auto;
  gap: 12px;
  align-items: center;
  padding: 8px 0;
  border-top: 1px solid var(--line-soft);
  font-size: 14px;
}

.topic-order-item:first-child {
  border-top: 0;
}

.order-no {
  font-family: var(--font-mono);
  font-size: 15px;
  color: var(--accent);
}

.order-name {
  min-width: 0;
  color: var(--text);
}

.order-tag,
.order-when {
  color: var(--text-dim);
  font-size: 13px;
  white-space: nowrap;
}

.topic-guide {
  margin-top: 56px;
  padding-top: 24px;
  border-top: 1px solid var(--line);
}

.guide-list {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 20px;
  margin-top: 16px;
}

.guide-item {
  padding: 16px;
  background-color: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.guide-item h3 {
  font-size: 16px;
  margin: 0 0 8px;
}

.guide-item p {
  margin: 0;
  color: var(--text-dim);
  font-size: 14px;
}

/* ==========================================================================
   pages · 阅读指南
   ========================================================================== */

.guide-flow {
  margin-top: 28px;
}

.flow-steps {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 20px;
  margin: 18px 0 28px;
}

.guide-flow .flow-step {
  padding: 20px;
  background-color: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.guide-flow .flow-step .step-index {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 20px;
  color: var(--accent);
  margin-bottom: 8px;
}

.guide-flow .flow-step h3 {
  font-size: 17px;
  margin: 0 0 8px;
}

.guide-flow .flow-step p {
  margin: 0 0 12px;
  color: var(--text-dim);
  font-size: 14px;
}

.step-link {
  font-size: 14px;
}

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

.guide-figure img {
  width: 100%;
  aspect-ratio: 16 / 7;
}

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

.guide-terms {
  margin-top: 56px;
  padding-top: 24px;
  border-top: 1px solid var(--line);
}

.term-list {
  display: grid;
  grid-template-columns: 200px minmax(0, 1fr);
  gap: 0 24px;
  margin: 16px 0 0;
}

.term-list dt {
  font-size: 15px;
  font-weight: 600;
  color: var(--text);
  padding: 12px 0;
  border-top: 1px solid var(--line-soft);
}

.term-list dd {
  margin: 0;
  padding: 12px 0;
  color: var(--text-dim);
  font-size: 14px;
  border-top: 1px solid var(--line-soft);
}

.term-list dt:first-of-type,
.term-list dt:first-of-type + dd {
  border-top: 0;
}

.guide-faq {
  margin-top: 56px;
  padding-top: 24px;
  border-top: 1px solid var(--line);
}

.faq-list {
  display: grid;
  gap: 10px;
  margin-top: 16px;
}

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

.faq-question {
  display: block;
  padding: 16px 44px 16px 18px;
  position: relative;
  font-size: 16px;
  font-weight: 600;
  color: var(--text);
  cursor: pointer;
  list-style: none;
}

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

.faq-question::after {
  content: "+";
  position: absolute;
  right: 18px;
  top: 50%;
  transform: translateY(-50%);
  font-family: var(--font-mono);
  font-size: 20px;
  color: var(--accent);
  line-height: 1;
}

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

.faq-answer {
  padding: 14px 18px 16px;
  color: var(--text-dim);
  font-size: 15px;
  border-top: 1px solid var(--line-soft);
}

.faq-answer p {
  margin: 0;
}

.guide-next {
  margin-top: 56px;
  padding-top: 24px;
  border-top: 1px solid var(--line);
}

.next-links {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
  margin-top: 14px;
}

.next-links a {
  font-size: 15px;
}

/* ==========================================================================
   pages · 关于与反馈
   ========================================================================== */

.content-block {
  padding: 24px;
  margin-bottom: 24px;
}

.content-block h2 {
  font-size: 22px;
  margin: 0 0 12px;
}

.content-block h3 {
  font-size: 17px;
  margin: 20px 0 10px;
}

.content-block p {
  color: var(--text-dim);
  font-size: 15px;
}

.content-figure {
  margin: 16px 0;
  border: 1px solid var(--line-soft);
  border-radius: var(--radius);
  overflow: hidden;
}

.content-figure img {
  width: 100%;
  aspect-ratio: 16 / 9;
}

.content-figure figcaption {
  padding: 10px 14px;
  color: var(--text-dim);
  font-size: 13px;
  background-color: var(--panel-soft);
  border-top: 1px solid var(--line-soft);
}

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

.scope-list li {
  position: relative;
  padding-left: 18px;
  color: var(--text-dim);
  font-size: 14px;
}

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

.principle-list {
  display: grid;
  gap: 12px;
}

.principle-list li {
  padding: 12px 14px;
  background-color: var(--panel-soft);
  border: 1px solid var(--line-soft);
  border-radius: var(--radius-sm);
  color: var(--text-dim);
  font-size: 14px;
}

.principle-list strong {
  display: block;
  margin-bottom: 4px;
  font-size: 15px;
}

.aside-block {
  padding: 20px;
  margin-bottom: 24px;
}

.aside-block h2 {
  font-size: 17px;
  margin: 0 0 10px;
}

.aside-block h3 {
  font-size: 15px;
  margin: 18px 0 10px;
}

.aside-block p {
  color: var(--text-dim);
  font-size: 14px;
}

.feedback-type-list {
  display: grid;
  gap: 10px;
}

.feedback-type-list li {
  padding: 10px 12px;
  background-color: var(--panel-soft);
  border: 1px solid var(--line-soft);
  border-radius: var(--radius-sm);
  color: var(--text-dim);
  font-size: 14px;
}

.feedback-type-list strong {
  display: block;
  margin-bottom: 2px;
  font-size: 15px;
}

.feedback-flow {
  display: grid;
  gap: 12px;
  counter-reset: fflow;
}

.feedback-flow li {
  display: grid;
  grid-template-columns: 30px minmax(0, 1fr);
  gap: 10px;
  align-items: start;
  color: var(--text-dim);
  font-size: 14px;
}

.feedback-flow .flow-step {
  padding: 0;
  background: none;
  border: 0;
  border-radius: 0;
  font-family: var(--font-mono);
  font-size: 15px;
  color: var(--accent);
}

.aside-warning {
  margin-top: 12px;
  padding: 10px 12px;
  color: var(--warn);
  background-color: rgba(255, 122, 122, 0.08);
  border: 1px solid rgba(255, 122, 122, 0.3);
  border-radius: var(--radius-sm);
  font-size: 13px;
}

.related-entry-list {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
  margin-top: 14px;
}

.related-entry-list a {
  font-size: 15px;
}

/* ==========================================================================
   pages · 404
   ========================================================================== */

.error-main {
  padding-top: 40px;
}

.error-panel {
  padding: 40px 32px;
  text-align: left;
}

.error-code {
  margin: 0 0 8px;
  font-family: var(--font-mono);
  font-size: 44px;
  line-height: 1;
  color: var(--accent);
}

.error-panel h1 {
  font-size: clamp(24px, 2.6vw, 32px);
  margin: 0 0 12px;
}

.error-text {
  margin: 0 0 24px;
  color: var(--text-dim);
  font-size: 16px;
  max-width: 620px;
}

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

.error-actions a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 10px 22px;
  border-radius: var(--radius);
  font-size: 15px;
  font-weight: 600;
  border: 1px solid transparent;
}

.error-actions .btn-primary {
  background-color: var(--accent);
  color: #0d1017;
}

.error-actions .btn-primary:hover {
  background-color: #7fe7c5;
  color: #0d1017;
}

.error-actions .btn-ghost {
  border-color: var(--line);
  color: var(--text);
}

.error-actions .btn-ghost:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.error-guide {
  margin-top: 32px;
  padding: 24px;
}

.error-guide h2 {
  font-size: 20px;
  margin: 0 0 14px;
}

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

.error-guide-list a {
  display: block;
  padding: 12px 14px;
  background-color: var(--panel-soft);
  border: 1px solid var(--line-soft);
  border-radius: var(--radius-sm);
  color: var(--text-dim);
  font-size: 14px;
}

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

/* ==========================================================================
   responsive
   ========================================================================== */

@media (max-width: 1180px) {
  .page-layout,
  .page-layout.sidebar-right {
    grid-template-columns: minmax(0, 1fr) 300px;
    gap: 24px;
  }

  .hero-layout {
    gap: 28px;
  }

  .topic-block {
    grid-template-columns: 260px minmax(0, 1fr);
    gap: 22px;
  }

  .topic-block .topic-figure {
    width: 260px;
  }
}

@media (max-width: 900px) {
  .site-nav {
    position: absolute;
    left: 0;
    right: 0;
    top: var(--header-h);
    background-color: var(--panel);
    border-bottom: 1px solid var(--line);
    padding: 0 var(--gutter) 12px;
  }

  .site-nav .nav-list {
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding-top: 8px;
  }

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

  .site-nav .nav-list a {
    display: flex;
    align-items: center;
    min-height: 44px;
    padding: 10px 12px;
    font-size: 16px;
    border-bottom: 1px solid var(--line-soft);
    border-radius: 0;
  }

  .site-nav .nav-list a.is-current {
    color: var(--accent);
    border-bottom-color: var(--line-soft);
    background-color: var(--accent-soft);
  }

  .nav-toggle {
    display: flex;
  }

  .site-header .header-inner {
    position: relative;
  }

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

  .hero-text h1 {
    margin-bottom: 12px;
  }

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

  .layout-side,
  .rank-side,
  .rank-aside {
    position: static;
  }

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

  .topic-grid,
  .stage-grid,
  .guide-columns,
  .usage-list,
  .advice-list,
  .tips-list,
  .guide-list,
  .legend-list,
  .flow-steps {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

  .timeline-item {
    grid-template-columns: 120px minmax(0, 1fr);
    gap: 16px;
  }

  .timeline-figure {
    width: 120px;
  }

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

  .topic-block .topic-figure {
    width: 100%;
  }

  .term-list {
    grid-template-columns: 160px minmax(0, 1fr);
  }
}

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

  :root {
    --header-h: 56px;
    --gutter: 16px;
  }

  .site-main {
    padding-bottom: 40px;
  }

  .hero {
    padding-top: 20px;
  }

  .hero-text h1 {
    font-size: 26px;
  }

  .hero-actions .btn {
    flex: 1 1 auto;
  }

  .tag-filter-list {
    flex-wrap: nowrap;
    overflow-x: auto;
    padding-bottom: 6px;
    -webkit-overflow-scrolling: touch;
  }

  .tag-chip {
    flex: 0 0 auto;
  }

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

  .work-cover {
    width: 76px;
  }

  .rank-main .rank-row {
    grid-template-columns: 32px 40px minmax(0, 1fr) auto;
    gap: 8px;
  }

  .rank-thumb {
    width: 40px;
    height: 52px;
  }

  .rank-main .rank-trend {
    display: none;
  }

  .rank-aside .rank-row {
    grid-template-columns: 28px minmax(0, 1fr) auto;
  }

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

  .timeline-list {
    padding-left: 20px;
    gap: 22px;
  }

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

  .timeline-item::before {
    left: -20px;
    top: 6px;
  }

  .timeline-figure {
    width: 64px;
    aspect-ratio: 1 / 1;
  }

  .topic-grid,
  .stage-grid,
  .guide-columns,
  .usage-list,
  .advice-list,
  .tips-list,
  .guide-list,
  .legend-list,
  .flow-steps,
  .error-guide-list {
    grid-template-columns: minmax(0, 1fr);
  }

  .work-row {
    grid-template-columns: 68px minmax(0, 1fr);
    gap: 12px;
  }

  .work-thumb {
    width: 68px;
  }

  .topic-order-item {
    grid-template-columns: 24px minmax(0, 1fr);
    row-gap: 2px;
  }

  .order-tag,
  .order-when {
    grid-column: 2;
  }

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

  .term-list dt {
    border-top: 1px solid var(--line-soft);
    padding-bottom: 2px;
  }

  .term-list dd {
    border-top: 0;
    padding-top: 0;
  }

  .term-list dt:first-of-type {
    border-top: 0;
  }

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

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

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

  .error-actions a {
    flex: 1 1 auto;
  }
}