/* ==========================================================================
   羞羞漫画 · yojwu.cn 全站样式
   分组：base / layout / components / pages / responsive
   ========================================================================== */

/* --------------------------------------------------------------------------
   base：变量、重置、排版、通用元素
   -------------------------------------------------------------------------- */
:root {
  --paper: #f7f3ea;
  --ink: #2f2b26;
  --ink-soft: #6b645c;
  --line: #a8763e;
  --card: #fffdf8;
  --border: #e3dbcd;
  --border-strong: #cfc4b1;
  --radius-sm: 4px;
  --radius: 6px;
  --radius-lg: 8px;
  --shadow-soft: 0 1px 2px rgba(47, 43, 38, 0.05);
  --shadow-lift: 0 6px 18px rgba(47, 43, 38, 0.09);
  --font-sans: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB",
    "Microsoft YaHei", "Source Han Sans SC", "Noto Sans CJK SC", sans-serif;
  --font-mono: "SFMono-Regular", "JetBrains Mono", Consolas, "Liberation Mono", Menlo, monospace;
  --container: 1140px;
  --gap-xs: 6px;
  --gap-sm: 10px;
  --gap: 16px;
  --gap-md: 24px;
  --gap-lg: 36px;
  --gap-xl: 56px;
  --header-h: 68px;
}

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

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

body {
  margin: 0;
  background-color: var(--paper);
  color: var(--ink);
  font-family: var(--font-sans);
  font-size: 16px;
  font-weight: 400;
  line-height: 1.8;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

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

h1 {
  font-size: 32px;
  line-height: 1.3;
}

h2 {
  font-size: 22px;
  line-height: 1.4;
}

h3 {
  font-size: 17px;
  line-height: 1.5;
}

h4 {
  font-size: 16px;
  line-height: 1.5;
}

p {
  margin: 0 0 12px;
}

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

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

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

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

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

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

figure {
  margin: 0;
}

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

caption {
  text-align: left;
}

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

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

/* --------------------------------------------------------------------------
   layout：站点骨架（header / nav / main / breadcrumb / page-header / footer）
   -------------------------------------------------------------------------- */
.site-body {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  background-color: var(--paper);
  font-family: var(--font-sans);
  color: var(--ink);
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  background-color: rgba(247, 243, 234, 0.96);
  border-bottom: 1px solid var(--border);
  backdrop-filter: saturate(140%) blur(6px);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--gap-md);
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
  min-height: var(--header-h);
}

.brand-logo {
  flex: 0 0 auto;
  font-size: 20px;
  font-weight: 600;
  line-height: 1.2;
  color: var(--ink);
  padding: 4px 0;
  border-bottom: 2px solid transparent;
}

.brand-logo:hover,
.brand-logo:focus-visible {
  color: var(--line);
  border-bottom-color: var(--line);
}

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

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

.nav-list > li {
  display: flex;
}

.nav-link {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 0 12px;
  font-size: 15px;
  color: var(--ink-soft);
  border-bottom: 2px solid transparent;
}

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

.nav-link.is-current {
  color: var(--ink);
  font-weight: 600;
  border-bottom-color: var(--line);
}

.nav-toggle {
  display: none;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-sm);
  background-color: var(--card);
}

.nav-toggle::before {
  content: "";
  display: block;
  width: 18px;
  height: 2px;
  background-color: var(--ink);
  box-shadow: 0 -6px 0 var(--ink), 0 6px 0 var(--ink);
}

.site-main {
  flex: 1 0 auto;
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px 64px;
}

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

.breadcrumb {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  padding: 4px 0 14px;
  font-size: 14px;
  line-height: 1.6;
  color: var(--ink-soft);
}

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

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

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

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

.page-header {
  padding: 0 0 26px;
  border-bottom: 1px solid var(--border);
  margin-bottom: var(--gap-lg);
}

.page-title {
  font-size: 32px;
  line-height: 1.3;
  font-weight: 600;
  color: var(--ink);
}

.page-description {
  margin: 12px 0 0;
  max-width: 76ch;
  font-size: 16px;
  line-height: 1.8;
  color: var(--ink-soft);
}

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

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

.site-footer {
  flex: 0 0 auto;
  margin-top: auto;
  background-color: #f2ece0;
  border-top: 1px solid var(--border);
}

.footer-inner {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 44px 24px 26px;
}

.footer-cols {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: var(--gap-md);
  padding-bottom: 28px;
  border-bottom: 1px solid var(--border);
}

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

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

.footer-links a {
  display: inline-block;
  padding: 2px 0;
  font-size: 14px;
  line-height: 1.6;
  color: var(--ink-soft);
}

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

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

.footer-brand-desc {
  margin: 0 0 8px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--ink-soft);
  max-width: 78ch;
}

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

/* --------------------------------------------------------------------------
   components：全站共用组件
   -------------------------------------------------------------------------- */

/* 区块通用 */
.section {
  margin-bottom: var(--gap-xl);
}

.section-head {
  margin-bottom: var(--gap-md);
}

.section-title {
  font-size: 22px;
  line-height: 1.4;
  font-weight: 600;
  color: var(--ink);
}

.section-desc,
.section-intro {
  margin: 10px 0 0;
  max-width: 78ch;
  font-size: 15px;
  line-height: 1.8;
  color: var(--ink-soft);
}

.section-foot {
  margin-top: var(--gap-md);
}

.section-note {
  margin-top: var(--gap-md);
  font-size: 14px;
  line-height: 1.7;
  color: var(--ink-soft);
}

.link-more {
  display: inline-flex;
  align-items: center;
  min-height: 40px;
  font-size: 15px;
  color: var(--line);
  border-bottom: 1px solid var(--line);
}

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

/* 按钮 */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0 22px;
  font-size: 15px;
  font-weight: 600;
  border-radius: var(--radius);
  border: 1px solid transparent;
}

.btn-primary {
  background-color: var(--ink);
  color: var(--paper);
  border-color: var(--ink);
}

.btn-primary:hover,
.btn-primary:focus-visible {
  background-color: var(--line);
  border-color: var(--line);
  color: #fffdf8;
}

.btn-ghost {
  background-color: transparent;
  color: var(--ink);
  border-color: var(--border-strong);
}

.btn-ghost:hover,
.btn-ghost:focus-visible {
  border-color: var(--line);
  color: var(--line);
}

/* 编号与字段标签 */
.tag-num,
.topic-num,
.cell-num,
.step-no,
.rank-no,
.code-tag,
.cell-code {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 13px;
  line-height: 1.6;
  color: var(--line);
}

/* 题材对照表（首页 hero 与题材页共用） */
.topic-table {
  font-size: 14px;
  line-height: 1.7;
  background-color: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}

.topic-table thead th {
  padding: 10px 12px;
  text-align: left;
  font-size: 13px;
  font-weight: 600;
  color: var(--ink-soft);
  background-color: #f2ece0;
  border-bottom: 1px solid var(--border);
  white-space: nowrap;
}

.topic-table tbody th,
.topic-table tbody td {
  padding: 11px 12px;
  text-align: left;
  font-weight: 400;
  border-bottom: 1px solid var(--border);
  color: var(--ink);
  vertical-align: top;
}

.topic-table tbody tr:last-child th,
.topic-table tbody tr:last-child td {
  border-bottom: 0;
}

.topic-table tbody tr:hover {
  background-color: #faf6ee;
}

.topic-table .cell-num,
.topic-table .cell-code,
.topic-table .code-tag {
  white-space: nowrap;
}

.topic-table .cell-scope,
.topic-table .cell-tone {
  color: var(--ink-soft);
}

.topic-table .cell-status,
.topic-table .cell-status-text {
  white-space: nowrap;
  color: var(--ink);
}

.topic-table-caption {
  padding: 12px 14px 0;
  font-size: 13px;
  color: var(--ink-soft);
}

.topic-table-wrap {
  overflow-x: auto;
  border-radius: var(--radius);
}

/* 字段说明列表（updates / ranking） */
.field-list {
  margin: 0;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background-color: var(--card);
  overflow: hidden;
}

.field-row {
  display: grid;
  grid-template-columns: 160px minmax(0, 1fr);
  gap: var(--gap);
  padding: 12px 16px;
  border-bottom: 1px solid var(--border);
}

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

.field-name {
  margin: 0;
  font-size: 14px;
  font-weight: 600;
  color: var(--ink);
}

.field-desc {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--ink-soft);
}

/* 图片容器通用约束 */
.cover-figure,
.collection-figure,
.topic-note-media,
.media-figure,
.ranking-figure,
.collection-media,
.field-figure {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background-color: var(--card);
}

.cover-figure img,
.collection-figure img,
.topic-note-media img,
.media-figure img,
.ranking-figure img,
.collection-media img,
.field-figure img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

/* 侧栏通用 */
.page-aside,
.sidebar,
.layout-aside {
  min-width: 0;
  font-size: 14px;
  line-height: 1.7;
}

.aside-title {
  margin-bottom: 12px;
  font-size: 16px;
  font-weight: 600;
  color: var(--ink);
}

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

.aside-item {
  padding: 10px 12px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--ink-soft);
  background-color: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
}

.aside-item a {
  color: var(--ink);
}

.aside-item a:hover,
.aside-item a:focus-visible {
  color: var(--line);
}

.aside-nav,
.aside-links,
.aside-actions {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-top: var(--gap);
}

.aside-link {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 0 14px;
  font-size: 14px;
  color: var(--ink);
  background-color: var(--card);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius);
}

.aside-link:hover,
.aside-link:focus-visible {
  border-color: var(--line);
  color: var(--line);
}

.aside-note {
  margin-top: var(--gap);
  padding: 14px;
  background-color: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
}

.aside-note-title {
  margin-bottom: 8px;
  font-size: 15px;
  font-weight: 600;
  color: var(--ink);
}

.aside-note-text {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--ink-soft);
}

/* 步骤列表（guide 内页纵向） */
.step-list {
  display: grid;
  gap: var(--gap);
}

/* 内容区块标题下的正文 */
.content-section {
  margin-bottom: var(--gap-xl);
}

.content-section:last-child {
  margin-bottom: 0;
}

/* --------------------------------------------------------------------------
   pages：首页
   -------------------------------------------------------------------------- */

/* 顶部事实条 */
.fact-bar {
  background-color: var(--ink);
  color: #f0e9dc;
}

.fact-bar-text {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 9px 24px;
  font-size: 13px;
  line-height: 1.6;
}

/* 首屏 */
.hero-section {
  padding: 40px 0 0;
}

.hero-inner {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1.15fr);
  gap: var(--gap-lg);
  align-items: start;
}

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

.hero-eyebrow {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.02em;
  color: var(--line);
}

.hero-title {
  font-size: 32px;
  line-height: 1.3;
  font-weight: 600;
}

.hero-desc {
  margin: 16px 0 0;
  max-width: 46ch;
  font-size: 16px;
  line-height: 1.8;
  color: var(--ink-soft);
}

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

.hero-table-wrap {
  min-width: 0;
}

.hero-table-title {
  margin-bottom: 12px;
  font-size: 17px;
  font-weight: 600;
}

.hero-table-note {
  margin: 12px 0 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--ink-soft);
}

.hero-table-note a {
  color: var(--line);
  border-bottom: 1px solid var(--line);
}

.hero-table-note a:hover,
.hero-table-note a:focus-visible {
  color: var(--ink);
  border-bottom-color: var(--ink);
}

/* 作品封面墙 */
.cover-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--gap-md);
}

.cover-card {
  display: flex;
  flex-direction: column;
  padding: 14px;
  background-color: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-soft);
  transition: border-color 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease;
}

.cover-card:hover {
  border-color: var(--line);
  transform: translateY(-2px);
  box-shadow: var(--shadow-lift);
}

.cover-card .cover-figure {
  aspect-ratio: 3 / 4;
  margin-bottom: 12px;
}

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

.cover-meta {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  margin: 8px 0 0;
  font-size: 13px;
  color: var(--ink-soft);
}

.cover-meta .tag-num {
  padding: 1px 6px;
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-sm);
}

/* 题材分类总览 */
.topic-list {
  border-top: 1px solid var(--border);
}

.topic-row {
  display: grid;
  grid-template-columns: 56px minmax(120px, 1fr) minmax(0, 2fr) minmax(0, 1.2fr) 96px;
  gap: var(--gap);
  align-items: baseline;
  padding: 14px 4px;
  border-bottom: 1px solid var(--border);
  transition: background-color 0.18s ease;
}

.topic-row:hover {
  background-color: #faf6ee;
}

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

.topic-scope,
.topic-tone {
  font-size: 14px;
  line-height: 1.7;
  color: var(--ink-soft);
}

.topic-status {
  font-size: 13px;
  color: var(--ink);
  white-space: nowrap;
}

/* 最近更新速览 */
.update-groups {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--gap-md);
}

.update-group {
  min-width: 0;
  padding: 16px;
  background-color: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
}

.update-group-title {
  padding-bottom: 10px;
  margin-bottom: 10px;
  font-size: 16px;
  font-weight: 600;
  border-bottom: 1px solid var(--border);
}

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

.update-item {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 4px 10px;
  font-size: 14px;
  line-height: 1.7;
  padding-bottom: 10px;
  border-bottom: 1px dashed var(--border);
}

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

.update-name {
  flex: 1 1 100%;
  font-weight: 600;
  color: var(--ink);
}

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

.update-progress {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 13px;
  color: var(--line);
}

/* 榜单与专题双栏 */
.duo-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: var(--gap-lg);
  margin-top: var(--gap-md);
}

.duo-col {
  min-width: 0;
  padding: 20px;
  background-color: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
}

.duo-col-title {
  padding-bottom: 12px;
  margin-bottom: 14px;
  font-size: 17px;
  font-weight: 600;
  border-bottom: 1px solid var(--border);
}

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

.rank-item {
  display: grid;
  grid-template-columns: 32px minmax(0, 1fr);
  gap: 4px 10px;
  padding: 10px 0;
  border-bottom: 1px solid var(--border);
}

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

.rank-no {
  grid-row: span 2;
  align-self: start;
  padding-top: 2px;
  font-size: 15px;
  font-weight: 600;
}

.rank-name {
  font-size: 15px;
  font-weight: 600;
  color: var(--ink);
}

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

.rank-reason {
  grid-column: 2;
  font-size: 13px;
  line-height: 1.7;
  color: var(--ink-soft);
}

.duo-col-foot {
  margin: 16px 0 0;
}

.collection-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--gap);
}

.collection-item {
  display: flex;
  flex-direction: column;
  min-width: 0;
}

.collection-item .collection-figure {
  aspect-ratio: 4 / 3;
  margin-bottom: 10px;
}

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

.collection-desc {
  margin: 6px 0 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--ink-soft);
}

/* 阅读顺序四步 */
.step-list.step-list-home,
.steps-section .step-list {
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: var(--gap-md);
}

.steps-section .step-card {
  display: flex;
  flex-direction: column;
  min-width: 0;
  padding: 18px;
  background-color: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  transition: border-color 0.2s ease, transform 0.2s ease;
}

.steps-section .step-card:hover {
  border-color: var(--line);
  transform: translateY(-2px);
}

.steps-section .step-no {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 30px;
  height: 30px;
  margin-bottom: 12px;
  font-size: 14px;
  font-weight: 600;
  color: var(--line);
  border: 1px solid var(--line);
  border-radius: 50%;
}

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

.steps-section .step-desc {
  flex: 1 1 auto;
  margin: 0 0 14px;
  font-size: 14px;
  line-height: 1.75;
  color: var(--ink-soft);
}

.steps-section .step-link {
  align-self: flex-start;
  font-size: 14px;
  color: var(--line);
  border-bottom: 1px solid var(--line);
}

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

/* 站内栏目索引 */
.index-grid {
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  gap: var(--gap);
  margin-top: var(--gap-md);
}

.index-item {
  min-width: 0;
}

.index-link {
  display: flex;
  flex-direction: column;
  gap: 6px;
  height: 100%;
  padding: 16px;
  background-color: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  transition: border-color 0.2s ease, transform 0.2s ease;
}

.index-link:hover,
.index-link:focus-visible {
  border-color: var(--line);
  transform: translateY(-2px);
}

.index-name {
  font-size: 15px;
  font-weight: 600;
  color: var(--ink);
}

.index-desc {
  font-size: 13px;
  line-height: 1.65;
  color: var(--ink-soft);
}

/* --------------------------------------------------------------------------
   pages：题材分类（topics）
   -------------------------------------------------------------------------- */
.page-topics .section-topic-table .topic-table th,
.page-topics .section-topic-table .topic-table td {
  padding: 12px 14px;
}

.topic-notes-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--gap-md);
  margin-top: var(--gap-md);
}

.topic-note {
  display: flex;
  flex-direction: column;
  min-width: 0;
  padding: 18px;
  background-color: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
}

.topic-note-title {
  margin-bottom: 12px;
  font-size: 16px;
  font-weight: 600;
}

.topic-note-media {
  aspect-ratio: 16 / 9;
  margin-bottom: 12px;
}

.topic-note-caption {
  padding: 8px 10px;
  font-size: 12px;
  line-height: 1.6;
  color: var(--ink-soft);
  background-color: #f2ece0;
  border-top: 1px solid var(--border);
}

.topic-note-text {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--ink-soft);
}

.preference-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--gap);
  margin-top: var(--gap-md);
}

.preference-item {
  min-width: 0;
  padding: 16px 18px;
  background-color: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
}

.preference-name {
  margin-bottom: 8px;
  font-size: 15px;
  font-weight: 600;
}

.preference-text {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--ink-soft);
}

.destination-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--gap);
  margin-top: var(--gap-md);
}

.destination-card {
  min-width: 0;
  padding: 18px;
  background-color: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
}

.destination-title {
  margin-bottom: 8px;
  font-size: 15px;
  font-weight: 600;
}

.destination-text {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--ink-soft);
}

.destination-text a {
  color: var(--line);
  border-bottom: 1px solid var(--line);
}

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

.topic-aside .aside-code-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.topic-aside .aside-code-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 9px 12px;
  font-size: 14px;
  color: var(--ink);
  background-color: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
}

.topic-aside .code-tag {
  flex: 0 0 auto;
  padding: 1px 6px;
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-sm);
}

/* --------------------------------------------------------------------------
   pages：最近更新（updates）
   -------------------------------------------------------------------------- */
.page-updates .stage-group {
  margin-bottom: var(--gap-lg);
  padding: 18px;
  background-color: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
}

.page-updates .stage-group:last-of-type {
  margin-bottom: 0;
}

.page-updates .stage-group h3 {
  font-size: 17px;
  font-weight: 600;
}

.page-updates .stage-desc {
  margin: 8px 0 14px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--ink-soft);
}

.page-updates .stage-group .update-list {
  gap: 0;
}

.page-updates .stage-group .update-item {
  display: grid;
  grid-template-columns: minmax(120px, 1.4fr) minmax(80px, 1fr) minmax(90px, 1fr) auto;
  gap: 10px;
  align-items: baseline;
  padding: 10px 0;
  border-bottom: 1px solid var(--border);
  font-size: 14px;
}

.page-updates .stage-group .update-item:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}

.page-updates .update-title {
  font-weight: 600;
  color: var(--ink);
}

.page-updates .update-genre {
  color: var(--ink-soft);
}

.page-updates .update-progress {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 13px;
  color: var(--line);
}

.page-updates .update-status {
  justify-self: start;
  padding: 1px 8px;
  font-size: 12px;
  line-height: 1.7;
  white-space: nowrap;
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-sm);
  color: var(--ink-soft);
}

.page-updates .status-ongoing {
  color: var(--line);
  border-color: var(--line);
}

.page-updates .status-recent {
  color: var(--ink);
  border-color: var(--ink-soft);
}

.page-updates .status-finished {
  color: var(--ink-soft);
}

.page-updates .updates-media {
  margin-top: var(--gap-md);
  aspect-ratio: 16 / 6;
}

.page-updates .updates-media figcaption {
  padding: 8px 12px;
  font-size: 12px;
  line-height: 1.6;
  color: var(--ink-soft);
  background-color: #f2ece0;
  border-top: 1px solid var(--border);
}

.page-updates .caliber-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-top: var(--gap-md);
}

.page-updates .caliber-item {
  position: relative;
  padding: 12px 14px 12px 32px;
  font-size: 14px;
  line-height: 1.75;
  color: var(--ink-soft);
  background-color: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
}

.page-updates .caliber-item::before {
  content: "";
  position: absolute;
  left: 14px;
  top: 20px;
  width: 6px;
  height: 6px;
  background-color: var(--line);
  border-radius: 50%;
}

.page-updates .routing-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--gap);
  margin-top: var(--gap-md);
}

.page-updates .routing-col {
  min-width: 0;
  padding: 18px;
  background-color: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
}

.page-updates .routing-col-title {
  margin-bottom: 8px;
  font-size: 15px;
  font-weight: 600;
}

.page-updates .routing-col p {
  margin: 0 0 12px;
  font-size: 14px;
  line-height: 1.75;
  color: var(--ink-soft);
}

.page-updates .routing-link {
  font-size: 14px;
  color: var(--line);
  border-bottom: 1px solid var(--line);
}

.page-updates .routing-link:hover,
.page-updates .routing-link:focus-visible {
  color: var(--ink);
  border-bottom-color: var(--ink);
}

/* --------------------------------------------------------------------------
   pages：人气榜单（ranking）
   -------------------------------------------------------------------------- */
.page-ranking .layout-main {
  min-width: 0;
}

.page-ranking .ranking-list-section,
.page-ranking .ranking-fields-section,
.page-ranking .ranking-exit-section,
.page-ranking .ranking-policy-section {
  margin-bottom: var(--gap-xl);
}

.page-ranking .ranking-list-section {
  scroll-margin-top: calc(var(--header-h) + 12px);
}

.page-ranking .ranking-figure {
  aspect-ratio: 16 / 6;
  margin: var(--gap-md) 0;
}

.page-ranking .ranking-figure figcaption {
  padding: 8px 12px;
  font-size: 12px;
  line-height: 1.6;
  color: var(--ink-soft);
  background-color: #f2ece0;
  border-top: 1px solid var(--border);
}

.page-ranking .ranking-list {
  display: flex;
  flex-direction: column;
  border-top: 1px solid var(--border);
}

.page-ranking .ranking-item {
  display: grid;
  grid-template-columns: 52px minmax(0, 1fr);
  gap: var(--gap);
  align-items: start;
  padding: 16px 4px;
  border-bottom: 1px solid var(--border);
  transition: background-color 0.18s ease;
}

.page-ranking .ranking-item:hover {
  background-color: #faf6ee;
}

.page-ranking .ranking-rank {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 20px;
  font-weight: 600;
  line-height: 1.4;
  color: var(--line);
}

.page-ranking .ranking-body {
  min-width: 0;
}

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

.page-ranking .ranking-topic {
  margin: 6px 0 0;
  font-size: 13px;
  color: var(--ink-soft);
}

.page-ranking .ranking-basis {
  margin: 6px 0 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--ink-soft);
}

.page-ranking .ranking-meta {
  margin: 6px 0 0;
  font-size: 13px;
  color: var(--ink-soft);
}

.page-ranking .ranking-note {
  margin: var(--gap-md) 0 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--ink-soft);
}

.page-ranking .exit-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--gap);
  margin-top: var(--gap-md);
}

.page-ranking .exit-card {
  min-width: 0;
  padding: 18px;
  background-color: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
}

.page-ranking .exit-title {
  margin-bottom: 8px;
  font-size: 15px;
  font-weight: 600;
}

.page-ranking .exit-desc {
  margin: 0 0 12px;
  font-size: 14px;
  line-height: 1.75;
  color: var(--ink-soft);
}

.page-ranking .exit-link {
  font-size: 14px;
  color: var(--line);
  border-bottom: 1px solid var(--line);
}

.page-ranking .exit-link:hover,
.page-ranking .exit-link:focus-visible {
  color: var(--ink);
  border-bottom-color: var(--ink);
}

.page-ranking .policy-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-top: var(--gap-md);
}

.page-ranking .policy-item {
  position: relative;
  padding: 12px 14px 12px 32px;
  font-size: 14px;
  line-height: 1.75;
  color: var(--ink-soft);
  background-color: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
}

.page-ranking .policy-item::before {
  content: "";
  position: absolute;
  left: 14px;
  top: 20px;
  width: 6px;
  height: 6px;
  background-color: var(--line);
  border-radius: 50%;
}

.page-ranking .policy-more {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin: var(--gap-md) 0 0;
}

.page-ranking .policy-more a {
  font-size: 14px;
  color: var(--line);
  border-bottom: 1px solid var(--line);
}

.page-ranking .policy-more a:hover,
.page-ranking .policy-more a:focus-visible {
  color: var(--ink);
  border-bottom-color: var(--ink);
}

.page-ranking .layout-aside .aside-block {
  margin-bottom: var(--gap-md);
  padding: 16px;
  background-color: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
}

.page-ranking .layout-aside .aside-block:last-child {
  margin-bottom: 0;
}

/* --------------------------------------------------------------------------
   pages：专题合集（collections）
   -------------------------------------------------------------------------- */
.page-collections .collections-list-section,
.page-collections .collections-works-section,
.page-collections .collections-map-section,
.page-collections .collections-next-section {
  margin-bottom: var(--gap-xl);
}

.page-collections .collection-entry {
  display: grid;
  grid-template-columns: 220px minmax(0, 1fr);
  gap: var(--gap-md);
  align-items: start;
  padding: 18px;
  margin-top: var(--gap-md);
  background-color: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  transition: border-color 0.2s ease, transform 0.2s ease;
}

.page-collections .collection-entry:hover {
  border-color: var(--line);
  transform: translateY(-2px);
}

.page-collections .collection-media {
  aspect-ratio: 4 / 3;
}

.page-collections .collection-media figcaption {
  padding: 8px 10px;
  font-size: 12px;
  line-height: 1.6;
  color: var(--ink-soft);
  background-color: #f2ece0;
  border-top: 1px solid var(--border);
}

.page-collections .collection-body {
  min-width: 0;
}

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

.page-collections .collection-logic {
  margin: 0 0 8px;
  font-size: 14px;
  line-height: 1.8;
  color: var(--ink-soft);
}

.page-collections .collection-meta {
  margin: 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--line);
}

.page-collections .collection-group {
  margin-top: var(--gap-md);
  padding: 16px 18px;
  background-color: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
}

.page-collections .group-title {
  padding-bottom: 10px;
  margin-bottom: 12px;
  font-size: 16px;
  font-weight: 600;
  border-bottom: 1px solid var(--border);
}

.page-collections .work-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px 24px;
}

.page-collections .work-item {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 4px 10px;
  padding: 8px 0;
  font-size: 14px;
  line-height: 1.7;
  border-bottom: 1px dashed var(--border);
}

.page-collections .work-name {
  font-weight: 600;
  color: var(--ink);
}

.page-collections .work-topic {
  color: var(--ink-soft);
}

.page-collections .work-status {
  margin-left: auto;
  font-size: 13px;
  color: var(--line);
}

.page-collections .field-table {
  font-size: 14px;
  line-height: 1.7;
  background-color: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}

.page-collections .field-table caption {
  padding: 12px 14px 0;
  font-size: 13px;
  color: var(--ink-soft);
}

.page-collections .field-table th,
.page-collections .field-table td {
  padding: 11px 14px;
  text-align: left;
  font-weight: 400;
  border-bottom: 1px solid var(--border);
  vertical-align: top;
}

.page-collections .field-table thead th {
  font-size: 13px;
  font-weight: 600;
  color: var(--ink-soft);
  background-color: #f2ece0;
  white-space: nowrap;
}

.page-collections .field-table tbody th {
  font-weight: 600;
  color: var(--ink);
  white-space: nowrap;
}

.page-collections .field-table tbody td {
  color: var(--ink-soft);
}

.page-collections .field-table tbody tr:last-child th,
.page-collections .field-table tbody tr:last-child td {
  border-bottom: 0;
}

.page-collections .next-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--gap);
  margin-top: var(--gap-md);
}

.page-collections .next-item {
  display: flex;
  flex-direction: column;
  gap: 6px;
  min-width: 0;
  padding: 16px 18px;
  background-color: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
}

.page-collections .next-item a {
  font-size: 15px;
  font-weight: 600;
  color: var(--ink);
}

.page-collections .next-item a:hover,
.page-collections .next-item a:focus-visible {
  color: var(--line);
}

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

.page-collections .sidebar {
  padding: 18px;
  background-color: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
}

/* --------------------------------------------------------------------------
   pages：阅读说明（guide）
   -------------------------------------------------------------------------- */
.page-guide .content-section {
  scroll-margin-top: calc(var(--header-h) + 12px);
}

.page-guide .field-figure {
  margin: var(--gap-md) 0 0;
  aspect-ratio: 16 / 7;
}

.page-guide .field-caption {
  padding: 8px 12px;
  font-size: 12px;
  line-height: 1.6;
  color: var(--ink-soft);
  background-color: #f2ece0;
  border-top: 1px solid var(--border);
}

.page-guide .field-table {
  margin-top: var(--gap-md);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background-color: var(--card);
  overflow: hidden;
}

.page-guide .field-table .field-row {
  display: grid;
  grid-template-columns: minmax(120px, 1fr) minmax(0, 1.4fr) minmax(0, 1.6fr);
  gap: var(--gap);
  padding: 12px 16px;
  border-bottom: 1px solid var(--border);
}

.page-guide .field-table .field-row:last-child {
  border-bottom: 0;
}

.page-guide .field-table .field-head {
  background-color: #f2ece0;
}

.page-guide .field-table .field-head .field-cell {
  font-size: 13px;
  font-weight: 600;
  color: var(--ink-soft);
}

.page-guide .field-cell {
  min-width: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--ink-soft);
}

.page-guide .field-cell.field-name {
  color: var(--ink);
  font-weight: 600;
}

.page-guide .section-reading-order .step-list {
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--gap);
  margin-top: var(--gap-md);
}

.page-guide .section-reading-order .step-item {
  display: flex;
  flex-direction: column;
  min-width: 0;
  padding: 16px 18px;
  background-color: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
}

.page-guide .section-reading-order .step-name {
  margin-bottom: 8px;
  font-size: 15px;
  font-weight: 600;
}

.page-guide .section-reading-order .step-desc {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--ink-soft);
}

.page-guide .boundary-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-top: var(--gap-md);
}

.page-guide .boundary-item {
  position: relative;
  padding: 12px 14px 12px 32px;
  font-size: 14px;
  line-height: 1.75;
  color: var(--ink-soft);
  background-color: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
}

.page-guide .boundary-item::before {
  content: "";
  position: absolute;
  left: 14px;
  top: 20px;
  width: 6px;
  height: 6px;
  background-color: var(--line);
  border-radius: 50%;
}

.page-guide .faq-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-top: var(--gap-md);
}

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

.page-guide .faq-item[open] {
  border-color: var(--border-strong);
}

.page-guide .faq-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  min-height: 48px;
  padding: 12px 16px;
  font-size: 15px;
  font-weight: 600;
  color: var(--ink);
  cursor: pointer;
  list-style: none;
}

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

.page-guide .faq-question::after {
  content: "+";
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 18px;
  line-height: 1;
  color: var(--line);
}

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

.page-guide .faq-question:hover {
  color: var(--line);
}

.page-guide .faq-answer {
  padding: 0 16px 16px;
  font-size: 14px;
  line-height: 1.8;
  color: var(--ink-soft);
}

.page-guide .page-aside .aside-item a {
  display: block;
}

/* --------------------------------------------------------------------------
   pages：404
   -------------------------------------------------------------------------- */
.site-error .error-main {
  display: flex;
  align-items: center;
  justify-content: center;
  padding-top: 64px;
  padding-bottom: 96px;
}

.error-panel {
  width: 100%;
  max-width: 640px;
  padding: 36px 32px;
  text-align: left;
  background-color: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-soft);
}

.error-code {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 14px;
  letter-spacing: 0.06em;
  color: var(--line);
}

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

.error-text {
  margin: 0 0 22px;
  font-size: 15px;
  line-height: 1.8;
  color: var(--ink-soft);
}

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

.error-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0 20px;
  font-size: 15px;
  font-weight: 600;
  color: var(--paper);
  background-color: var(--ink);
  border: 1px solid var(--ink);
  border-radius: var(--radius);
}

.error-btn:hover,
.error-btn:focus-visible {
  color: #fffdf8;
  background-color: var(--line);
  border-color: var(--line);
}

.error-btn-plain {
  color: var(--ink);
  background-color: transparent;
  border-color: var(--border-strong);
}

.error-btn-plain:hover,
.error-btn-plain:focus-visible {
  color: var(--line);
  background-color: transparent;
  border-color: var(--line);
}

/* --------------------------------------------------------------------------
   responsive：960px / 640px 断点
   -------------------------------------------------------------------------- */
@media (max-width: 960px) {
  .header-inner {
    padding: 0 18px;
  }

  .site-main {
    padding: 0 18px 52px;
  }

  .footer-inner {
    padding: 36px 18px 22px;
  }

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

  .site-nav {
    position: relative;
  }

  .nav-list {
    position: absolute;
    top: calc(100% + 10px);
    right: 0;
    z-index: 50;
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    width: 220px;
    padding: 8px;
    background-color: var(--card);
    border: 1px solid var(--border-strong);
    border-radius: var(--radius);
    box-shadow: var(--shadow-lift);
  }

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

  .nav-link {
    width: 100%;
    padding: 0 12px;
    border-bottom: 0;
    border-left: 2px solid transparent;
  }

  .nav-link.is-current {
    border-bottom-color: transparent;
    border-left-color: var(--line);
  }

  .page-header {
    padding-bottom: 20px;
    margin-bottom: 28px;
  }

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

  .hero-inner {
    grid-template-columns: minmax(0, 1fr);
    gap: var(--gap-md);
  }

  .hero-desc {
    max-width: none;
  }

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

  .topic-row {
    grid-template-columns: 48px minmax(0, 1fr) minmax(0, 1.6fr);
    row-gap: 6px;
  }

  .topic-row .topic-status {
    grid-column: 2 / -1;
  }

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

  .duo-grid {
    grid-template-columns: minmax(0, 1fr);
    gap: var(--gap-md);
  }

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

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

  .topic-notes-grid,
  .preference-list,
  .destination-grid,
  .page-updates .routing-grid,
  .page-ranking .exit-grid,
  .page-collections .next-list {
    grid-template-columns: minmax(0, 1fr);
  }

  .page-collections .collection-entry {
    grid-template-columns: 180px minmax(0, 1fr);
  }

  .page-collections .work-list {
    grid-template-columns: minmax(0, 1fr);
  }

  .page-guide .section-reading-order .step-list {
    grid-template-columns: minmax(0, 1fr);
  }

  .page-updates .stage-group .update-item {
    grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr);
    row-gap: 4px;
  }

  .page-updates .update-progress,
  .page-updates .update-status {
    justify-self: start;
  }
}

@media (max-width: 640px) {
  h1,
  .page-title,
  .hero-title {
    font-size: 26px;
  }

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

  .fact-bar-text {
    padding: 8px 16px;
    font-size: 12px;
  }

  .header-inner {
    padding: 0 16px;
    gap: var(--gap);
  }

  .brand-logo {
    font-size: 18px;
  }

  .site-main {
    padding: 0 16px 44px;
  }

  .inner-main {
    padding-top: 14px;
  }

  .page-header {
    margin-bottom: 24px;
  }

  .hero-section {
    padding-top: 26px;
  }

  .hero-actions {
    gap: 10px;
  }

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

  .section {
    margin-bottom: 40px;
  }

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

  .cover-card .cover-figure {
    aspect-ratio: 16 / 11;
  }

  .topic-row {
    grid-template-columns: 44px minmax(0, 1fr);
    row-gap: 6px;
    padding: 12px 2px;
  }

  .topic-row .topic-scope,
  .topic-row .topic-tone,
  .topic-row .topic-status {
    grid-column: 2;
  }

  .topic-table thead th,
  .topic-table tbody th,
  .topic-table tbody td {
    padding: 9px 10px;
    font-size: 13px;
  }

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

  .steps-section .step-list {
    grid-template-columns: minmax(0, 1fr);
    gap: var(--gap);
  }

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

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

  .page-updates .stage-group {
    padding: 14px;
  }

  .page-updates .stage-group .update-item {
    grid-template-columns: minmax(0, 1fr);
    gap: 2px;
    padding: 10px 0;
  }

  .page-updates .updates-media {
    aspect-ratio: 16 / 9;
  }

  .page-ranking .ranking-item {
    grid-template-columns: 40px minmax(0, 1fr);
    gap: 12px;
    padding: 14px 2px;
  }

  .page-ranking .ranking-rank {
    font-size: 17px;
  }

  .page-collections .collection-entry {
    grid-template-columns: minmax(0, 1fr);
    padding: 14px;
  }

  .page-collections .field-table th,
  .page-collections .field-table td {
    padding: 9px 10px;
    font-size: 13px;
  }

  .page-guide .field-table .field-row {
    grid-template-columns: minmax(0, 1fr);
    gap: 4px;
    padding: 12px 14px;
  }

  .page-guide .field-table .field-head {
    display: none;
  }

  .page-guide .field-cell.field-name {
    font-size: 14px;
  }

  .error-main {
    padding-top: 40px;
    padding-bottom: 56px;
  }

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

  .error-actions {
    flex-direction: column;
  }

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

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

@media (max-width: 380px) {
  .index-grid {
    grid-template-columns: minmax(0, 1fr);
  }

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

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

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