/* ============================================================
   樱花动漫 eivxb.cn — 全站样式表
   base / layout / components / pages / responsive
   ============================================================ */

/* ------------------------------------------------------------
   base
   ------------------------------------------------------------ */
:root {
  --bg-page: #F7F8FA;
  --bg-card: #FFFFFF;
  --bg-soft: #F1F3F7;
  --text-main: #1F2329;
  --text-sub: #5A6472;
  --brand: #2F6FED;
  --brand-dark: #1F55C4;
  --warn: #D64545;
  --line: #E3E7ED;
  --line-strong: #CBD3DE;
  --radius: 6px;
  --radius-sm: 4px;
  --shadow-card: 0 1px 2px rgba(31, 35, 41, 0.05);
  --shadow-hover: 0 4px 14px rgba(31, 35, 41, 0.09);
  --container: 1120px;
  --gap: 24px;
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
    "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  --font-mono: "SFMono-Regular", "Menlo", "Consolas", "Liberation Mono", monospace;
}

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

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

body {
  margin: 0;
  background: var(--bg-page);
  color: var(--text-main);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.75;
  font-weight: 400;
  font-variant-numeric: tabular-nums;
  -webkit-font-smoothing: antialiased;
}

h1,
h2,
h3,
h4,
h5,
h6 {
  margin: 0;
  font-weight: 600;
  line-height: 1.4;
  color: var(--text-main);
}

p {
  margin: 0;
}

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

dl,
dd,
dt,
figure,
figcaption {
  margin: 0;
}

a {
  color: var(--brand);
  text-decoration: none;
  transition: color 0.15s ease, border-color 0.15s ease;
}

a:hover {
  color: var(--brand-dark);
}

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

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

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

time {
  font-variant-numeric: tabular-nums;
}

/* ------------------------------------------------------------
   layout — 全站骨架
   ------------------------------------------------------------ */
.site-body {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  background: var(--bg-page);
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 30;
  background: var(--bg-card);
  border-bottom: 1px solid var(--line);
}

.header-inner {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 20px;
  min-height: 60px;
  display: flex;
  align-items: center;
  gap: 20px;
  flex-wrap: wrap;
}

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

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

.nav-list li {
  display: flex;
}

.nav-list a {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 8px 14px;
  color: var(--text-sub);
  font-size: 15px;
  border-radius: var(--radius-sm);
  border-bottom: 2px solid transparent;
}

.nav-list a:hover {
  color: var(--text-main);
  background: var(--bg-soft);
}

.nav-list a.is-current {
  color: var(--brand);
  border-bottom-color: var(--brand);
  font-weight: 600;
}

.site-main {
  flex: 1 0 auto;
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 28px 20px 48px;
}

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

.site-footer {
  background: var(--bg-card);
  border-top: 1px solid var(--line);
  margin-top: auto;
}

.footer-inner {
  max-width: var(--container);
  margin: 0 auto;
  padding: 36px 20px 0;
  display: grid;
  grid-template-columns: minmax(220px, 1.4fr) repeat(3, minmax(150px, 1fr));
  gap: 28px 32px;
}

.footer-copyright {
  max-width: var(--container);
  margin: 28px auto 0;
  padding: 18px 20px 26px;
  color: var(--text-sub);
  font-size: 13px;
  border-top: 1px solid var(--line);
  width: 100%;
}

/* ------------------------------------------------------------
   components — 页头品牌 / 导航开关 / 面包屑 / 标题区
   ------------------------------------------------------------ */
.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  min-height: 44px;
  color: var(--text-main);
  font-weight: 600;
}

.brand:hover {
  color: var(--text-main);
}

.brand-mark {
  width: 26px;
  height: 26px;
  flex: 0 0 26px;
  border-radius: var(--radius-sm);
  background: var(--brand);
  position: relative;
}

.brand-mark::after {
  content: "";
  position: absolute;
  inset: 7px 7px auto 7px;
  height: 2px;
  background: #FFFFFF;
  box-shadow: 0 5px 0 #FFFFFF;
}

.brand-name {
  font-size: 18px;
  letter-spacing: 0;
}

.nav-toggle {
  display: none;
  margin-left: auto;
  width: 44px;
  height: 44px;
  padding: 11px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--line);
  background: var(--bg-card);
  flex-direction: column;
  justify-content: space-between;
}

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

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

.breadcrumb a {
  color: var(--text-sub);
  min-height: 28px;
  display: inline-flex;
  align-items: center;
}

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

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

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

.page-header {
  padding-bottom: 20px;
  margin-bottom: 26px;
  border-bottom: 1px solid var(--line);
}

.page-title {
  font-size: 28px;
  font-weight: 600;
  line-height: 1.35;
  margin-bottom: 10px;
}

.page-description {
  color: var(--text-sub);
  font-size: 15px;
  max-width: 72ch;
}

.section-title {
  font-size: 22px;
  font-weight: 600;
  margin-bottom: 8px;
}

.section-lead,
.section-desc,
.section-intro {
  color: var(--text-sub);
  font-size: 15px;
  max-width: 74ch;
  margin-bottom: 22px;
}

.section {
  margin-bottom: 44px;
}

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

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

.section-head .section-desc {
  margin-bottom: 0;
}

/* ------------------------------------------------------------
   components — 首页事实条
   ------------------------------------------------------------ */
.fact-bar {
  background: var(--bg-soft);
  border-bottom: 1px solid var(--line);
  color: var(--text-sub);
  font-size: 13px;
  text-align: center;
  padding: 8px 20px;
  line-height: 1.6;
}

/* ------------------------------------------------------------
   pages — 首页 hero 时间线索引区
   ------------------------------------------------------------ */
.hero-timeline {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(0, 1fr);
  gap: 36px;
  padding: 30px;
  background: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow-card);
  margin-bottom: 44px;
}

.hero-intro {
  display: flex;
  flex-direction: column;
  gap: 16px;
  min-width: 0;
}

.hero-title {
  font-size: 32px;
  font-weight: 600;
  line-height: 1.35;
}

.hero-summary {
  color: var(--text-sub);
  font-size: 15px;
  max-width: 60ch;
}

.hero-entry-list {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 4px;
}

.hero-entry a {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  min-height: 44px;
  padding: 8px 16px;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-sm);
  color: var(--text-main);
  font-size: 15px;
  background: var(--bg-card);
}

.hero-entry a:hover {
  border-color: var(--brand);
  color: var(--brand);
}

.hero-timeline-col {
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.hero-figure {
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--bg-soft);
  aspect-ratio: 16 / 9;
}

.hero-figure img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hero-timeline-heading {
  font-size: 18px;
  font-weight: 600;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--line);
}

.hero-timeline-list {
  display: flex;
  flex-direction: column;
}

.hero-timeline-item {
  display: grid;
  grid-template-columns: 84px minmax(0, 1fr) auto;
  align-items: center;
  gap: 12px;
  padding: 9px 0;
  border-bottom: 1px dashed var(--line);
  font-size: 14px;
}

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

.hero-timeline-item .timeline-date {
  color: var(--text-sub);
  font-size: 13px;
}

.hero-timeline-item .timeline-name {
  color: var(--text-main);
  font-weight: 500;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.hero-timeline-item .timeline-genre {
  color: var(--text-sub);
  font-size: 13px;
  white-space: nowrap;
}

.hero-timeline-more {
  font-size: 14px;
}

.hero-timeline-more a {
  display: inline-flex;
  align-items: center;
  min-height: 32px;
}

/* ------------------------------------------------------------
   pages — 首页题材方向总览
   ------------------------------------------------------------ */
.genre-overview {
  margin-bottom: 44px;
}

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

.genre-card {
  background: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  min-width: 0;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

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

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

.genre-card .genre-trait {
  font-size: 14px;
  color: var(--text-sub);
}

.genre-card .genre-scope {
  font-size: 13px;
  color: var(--text-sub);
  padding-top: 10px;
  border-top: 1px solid var(--line);
}

.genre-card .genre-sample {
  font-size: 13px;
  margin-top: auto;
}

.genre-card .genre-sample a {
  display: inline-flex;
  align-items: center;
  min-height: 32px;
}

/* ------------------------------------------------------------
   pages — 首页封面墙
   ------------------------------------------------------------ */
.cover-wall {
  margin-bottom: 44px;
}

.cover-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 22px;
}

.cover-card {
  background: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  min-width: 0;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

.cover-card:hover {
  border-color: var(--brand);
  box-shadow: var(--shadow-hover);
}

.cover-card .cover-figure {
  aspect-ratio: 3 / 4;
  background: var(--bg-soft);
  overflow: hidden;
}

.cover-card:nth-child(3n + 2) .cover-figure {
  aspect-ratio: 4 / 5;
}

.cover-card .cover-figure img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.cover-card .cover-name {
  font-size: 16px;
  font-weight: 600;
  padding: 14px 16px 4px;
}

.cover-card .cover-meta {
  font-size: 13px;
  color: var(--text-sub);
  padding: 0 16px 16px;
}

/* ------------------------------------------------------------
   pages — 首页更新与榜单并列区
   ------------------------------------------------------------ */
.duo-panel {
  margin-bottom: 44px;
}

.duo-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(0, 1fr);
  gap: 24px;
}

.duo-col {
  background: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 22px;
  min-width: 0;
  display: flex;
  flex-direction: column;
}

.duo-heading {
  font-size: 17px;
  font-weight: 600;
  padding-bottom: 12px;
  margin-bottom: 6px;
  border-bottom: 1px solid var(--line);
}

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

.update-row {
  display: grid;
  grid-template-columns: 88px minmax(0, 1fr) auto auto;
  align-items: center;
  gap: 12px;
  padding: 10px 0;
  border-bottom: 1px dashed var(--line);
  font-size: 14px;
}

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

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

.update-row .update-name {
  font-weight: 500;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.update-row .update-genre {
  color: var(--text-sub);
  font-size: 13px;
  white-space: nowrap;
}

.update-row .update-status {
  font-size: 12px;
  color: var(--brand);
  background: rgba(47, 111, 237, 0.08);
  border: 1px solid rgba(47, 111, 237, 0.22);
  border-radius: var(--radius-sm);
  padding: 1px 8px;
  white-space: nowrap;
}

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

.duo-more a {
  display: inline-flex;
  align-items: center;
  min-height: 32px;
}

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

.duo-ranking .rank-row {
  display: grid;
  grid-template-columns: 30px minmax(0, 1fr) auto;
  align-items: center;
  gap: 12px;
  padding: 10px 0;
  border-bottom: 1px dashed var(--line);
  font-size: 14px;
}

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

.duo-ranking .rank-pos {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 24px;
  height: 24px;
  border-radius: var(--radius-sm);
  background: var(--bg-soft);
  color: var(--text-sub);
  font-size: 12px;
  font-weight: 600;
}

.duo-ranking .rank-list .rank-row:nth-child(-n + 3) .rank-pos {
  background: var(--brand);
  color: #FFFFFF;
}

.duo-ranking .rank-name {
  font-weight: 500;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.duo-ranking .rank-genre {
  color: var(--text-sub);
  font-size: 13px;
  white-space: nowrap;
}

/* ------------------------------------------------------------
   pages — 首页字段与收录边界摘要
   ------------------------------------------------------------ */
.field-boundary {
  margin-bottom: 44px;
}

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

.field-col,
.boundary-col {
  background: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 22px;
  min-width: 0;
}

.field-col .field-heading,
.boundary-col .boundary-heading {
  font-size: 17px;
  font-weight: 600;
  padding-bottom: 12px;
  margin-bottom: 12px;
  border-bottom: 1px solid var(--line);
}

.field-col .field-list {
  display: grid;
  grid-template-columns: minmax(96px, 0.4fr) minmax(0, 1fr);
  gap: 10px 16px;
  font-size: 14px;
}

.field-col .field-name {
  color: var(--text-main);
  font-weight: 600;
}

.field-col .field-desc {
  color: var(--text-sub);
}

.field-col .field-link,
.boundary-col .boundary-link {
  margin-top: 16px;
  padding-top: 14px;
  border-top: 1px solid var(--line);
  font-size: 14px;
}

.field-col .field-link a,
.boundary-col .boundary-link a {
  display: inline-flex;
  align-items: center;
  min-height: 32px;
}

.boundary-col .boundary-text {
  font-size: 14px;
  color: var(--text-sub);
  margin-bottom: 14px;
}

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

.boundary-col .boundary-item {
  position: relative;
  padding-left: 18px;
  font-size: 14px;
  color: var(--text-main);
}

.boundary-col .boundary-item::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.72em;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--warn);
}

/* ------------------------------------------------------------
   pages — 首页站内栏目索引
   ------------------------------------------------------------ */
.site-index {
  margin-bottom: 20px;
}

.index-grid {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 18px;
}

.index-col {
  background: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 18px;
  min-width: 0;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

.index-col:hover {
  border-color: var(--brand);
  box-shadow: var(--shadow-hover);
}

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

.index-col .index-name a {
  display: inline-flex;
  align-items: center;
  min-height: 32px;
  color: var(--text-main);
}

.index-col .index-name a:hover {
  color: var(--brand);
}

.index-col .index-desc {
  font-size: 13px;
  color: var(--text-sub);
}

/* ------------------------------------------------------------
   components — 页脚
   ------------------------------------------------------------ */
.footer-brand {
  min-width: 0;
}

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

.footer-brand-desc {
  font-size: 13px;
  color: var(--text-sub);
  max-width: 34ch;
}

.footer-group {
  min-width: 0;
}

.footer-group-title {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-main);
  margin-bottom: 12px;
}

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

.footer-list a {
  display: inline-flex;
  align-items: center;
  min-height: 32px;
  color: var(--text-sub);
  font-size: 14px;
}

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

/* ------------------------------------------------------------
   pages — 题材分类 genres
   ------------------------------------------------------------ */
.genre-index-list {
  display: flex;
  flex-direction: column;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--bg-card);
  overflow: hidden;
}

.genre-index-row {
  display: grid;
  grid-template-columns: 56px minmax(0, 1fr);
  gap: 16px;
  padding: 18px 22px;
  border-bottom: 1px solid var(--line);
  align-items: start;
}

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

.genre-index-row .genre-index-no {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  border-radius: var(--radius-sm);
  background: var(--bg-soft);
  color: var(--text-sub);
  font-size: 13px;
  font-weight: 600;
}

.genre-index-row .genre-index-body {
  min-width: 0;
}

.genre-index-row .genre-index-name {
  font-size: 17px;
  font-weight: 600;
  margin-bottom: 6px;
}

.genre-index-row .genre-index-trait {
  font-size: 14px;
  color: var(--text-main);
  margin-bottom: 6px;
}

.genre-index-row .genre-index-scope {
  font-size: 13px;
  color: var(--text-sub);
}

.genre-block {
  background: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 22px;
  margin-bottom: 22px;
}

.genre-block:last-child {
  margin-bottom: 0;
}

.genre-block .genre-block-head {
  padding-bottom: 14px;
  margin-bottom: 18px;
  border-bottom: 1px solid var(--line);
}

.genre-block .genre-block-name {
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 6px;
}

.genre-block .genre-block-note {
  font-size: 14px;
  color: var(--text-sub);
}

.genre-block .genre-block-body {
  display: grid;
  grid-template-columns: 200px minmax(0, 1fr);
  gap: 24px;
  align-items: start;
}

.genre-block .genre-cover {
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--bg-soft);
  aspect-ratio: 3 / 4;
}

.genre-block .genre-cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.genre-block .genre-cover figcaption {
  font-size: 12px;
  color: var(--text-sub);
  padding: 8px 10px;
  background: var(--bg-soft);
}

.genre-block .genre-entry-list {
  display: flex;
  flex-direction: column;
  min-width: 0;
}

.genre-block .genre-entry {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding: 12px 0;
  border-bottom: 1px dashed var(--line);
  font-size: 15px;
}

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

.genre-block .genre-entry-name {
  font-weight: 500;
  min-width: 0;
}

.genre-block .genre-entry-tag {
  flex: 0 0 auto;
  font-size: 12px;
  color: var(--text-sub);
  background: var(--bg-soft);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  padding: 1px 8px;
  white-space: nowrap;
}

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

.diff-column {
  background: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 22px;
  min-width: 0;
}

.diff-column .diff-column-title {
  font-size: 17px;
  font-weight: 600;
  padding-bottom: 12px;
  margin-bottom: 12px;
  border-bottom: 1px solid var(--line);
}

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

.diff-column .diff-item {
  min-width: 0;
}

.diff-column .diff-item-name {
  display: block;
  font-weight: 600;
  font-size: 15px;
  margin-bottom: 4px;
}

.diff-column .diff-item-text {
  font-size: 14px;
  color: var(--text-sub);
}

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

.topic-card {
  background: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 20px;
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 8px;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

.topic-card:hover {
  border-color: var(--brand);
  box-shadow: var(--shadow-hover);
}

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

.topic-card .topic-card-desc {
  font-size: 14px;
  color: var(--text-sub);
}

.topic-card .topic-card-scope {
  font-size: 13px;
  color: var(--text-sub);
  margin-top: auto;
  padding-top: 10px;
  border-top: 1px solid var(--line);
}

.section-genre-boundary .boundary-list {
  background: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 20px 22px;
  gap: 12px;
}

.section-genre-boundary .boundary-item {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding-left: 18px;
}

.section-genre-boundary .boundary-item-name {
  font-weight: 600;
  font-size: 15px;
}

.section-genre-boundary .boundary-item-text {
  font-size: 14px;
  color: var(--text-sub);
}

.section-footnote {
  margin-top: 16px;
  font-size: 14px;
  color: var(--text-sub);
}

.section-footnote a {
  display: inline-flex;
  align-items: center;
  min-height: 32px;
}

/* ------------------------------------------------------------
   pages — 最近更新 updates
   ------------------------------------------------------------ */
.updates-timeline {
  margin-bottom: 44px;
}

.timeline-groups {
  display: flex;
  flex-direction: column;
  gap: 26px;
}

.timeline-group {
  background: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 20px 22px;
}

.timeline-group .timeline-date {
  font-size: 16px;
  font-weight: 600;
  color: var(--text-main);
  padding-bottom: 12px;
  margin-bottom: 4px;
  border-bottom: 1px solid var(--line);
}

.timeline-group .timeline-list {
  display: flex;
  flex-direction: column;
}

.timeline-group .timeline-row {
  display: grid;
  grid-template-columns: 64px minmax(0, 1fr);
  gap: 16px;
  padding: 14px 0;
  border-bottom: 1px dashed var(--line);
  align-items: start;
}

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

.timeline-group .timeline-thumb {
  width: 64px;
  aspect-ratio: 3 / 4;
  border-radius: var(--radius-sm);
  overflow: hidden;
  background: var(--bg-soft);
}

.timeline-group .timeline-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.timeline-group .timeline-body {
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.timeline-group .timeline-body .timeline-name {
  font-size: 16px;
  font-weight: 600;
  white-space: normal;
}

.timeline-group .timeline-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  font-size: 13px;
}

.timeline-group .timeline-meta .tag-genre {
  color: var(--text-sub);
  background: var(--bg-soft);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  padding: 1px 8px;
}

.timeline-group .timeline-meta .tag-status {
  color: var(--brand);
  background: rgba(47, 111, 237, 0.08);
  border: 1px solid rgba(47, 111, 237, 0.22);
  border-radius: var(--radius-sm);
  padding: 1px 8px;
}

.timeline-group .timeline-meta .is-new {
  color: var(--warn);
  background: rgba(214, 69, 69, 0.08);
  border: 1px solid rgba(214, 69, 69, 0.22);
  border-radius: var(--radius-sm);
  padding: 1px 8px;
}

.timeline-group .timeline-meta .is-update {
  color: var(--text-main);
  background: var(--bg-soft);
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-sm);
  padding: 1px 8px;
}

.status-fields {
  margin-bottom: 44px;
}

.status-fields .field-block {
  background: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
}

.status-fields .field-row {
  display: grid;
  grid-template-columns: minmax(120px, 0.32fr) minmax(0, 1fr);
  gap: 18px;
  padding: 15px 22px;
  border-bottom: 1px solid var(--line);
  font-size: 14px;
}

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

.status-fields .field-row .field-name {
  font-weight: 600;
}

.status-fields .field-row .field-meaning {
  color: var(--text-sub);
}

.chase-path {
  margin-bottom: 44px;
}

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

.chase-path .path-step {
  background: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 18px;
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.chase-path .path-index {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--brand);
  color: #FFFFFF;
  font-size: 13px;
  font-weight: 600;
}

.chase-path .path-text {
  font-size: 14px;
  color: var(--text-main);
}

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

.genre-map .map-columns {
  display: contents;
}

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

.map-columns .map-col {
  background: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 22px;
  min-width: 0;
}

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

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

.map-columns .map-item {
  font-size: 14px;
  color: var(--text-sub);
  padding-left: 16px;
  position: relative;
}

.map-columns .map-item::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.72em;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--line-strong);
}

.record-notes {
  margin-bottom: 20px;
}

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

.record-notes .note-item {
  background: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 20px;
  min-width: 0;
}

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

.record-notes .note-text {
  font-size: 14px;
  color: var(--text-sub);
}

/* ------------------------------------------------------------
   pages — 人气榜单 ranking
   ------------------------------------------------------------ */
.rank-section {
  margin-bottom: 44px;
}

.rank-section .rank-list {
  background: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 6px 22px;
}

.rank-section .rank-item {
  display: grid;
  grid-template-columns: 40px 72px minmax(0, 1fr);
  gap: 18px;
  padding: 18px 0;
  border-bottom: 1px solid var(--line);
  align-items: start;
}

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

.rank-section .rank-no {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 30px;
  height: 30px;
  border-radius: var(--radius-sm);
  background: var(--bg-soft);
  color: var(--text-sub);
  font-size: 13px;
  font-weight: 600;
}

.rank-section .rank-item:nth-child(-n + 3) .rank-no {
  background: var(--brand);
  color: #FFFFFF;
}

.rank-section .rank-cover {
  width: 72px;
  aspect-ratio: 3 / 4;
  border-radius: var(--radius-sm);
  overflow: hidden;
  background: var(--bg-soft);
}

.rank-section .rank-cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.rank-section .rank-body {
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

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

.rank-section .rank-name a {
  color: var(--text-main);
  display: inline-flex;
  align-items: center;
  min-height: 32px;
}

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

.rank-section .rank-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  font-size: 13px;
}

.rank-section .rank-meta .rank-genre {
  color: var(--text-sub);
  background: var(--bg-soft);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  padding: 1px 8px;
}

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

.section-foot {
  margin-top: 16px;
  font-size: 14px;
}

.section-foot a {
  display: inline-flex;
  align-items: center;
  min-height: 32px;
}

.rank-reason-section,
.rank-method-section,
.rank-genre-section,
.rank-change-section,
.rank-more-section {
  margin-bottom: 44px;
}

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

.rank-reason-section .reason-col {
  background: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 22px;
  min-width: 0;
}

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

.rank-reason-section .reason-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.rank-reason-section .reason-item {
  font-size: 14px;
  color: var(--text-sub);
  padding-left: 16px;
  position: relative;
}

.rank-reason-section .reason-item::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.72em;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--brand);
}

.rank-reason-section .reason-item strong {
  color: var(--text-main);
  font-weight: 600;
}

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

.rank-method-section .method-step {
  background: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 20px;
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.rank-method-section .step-no {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--bg-soft);
  border: 1px solid var(--line-strong);
  color: var(--text-main);
  font-size: 13px;
  font-weight: 600;
}

.rank-method-section .step-name {
  font-size: 16px;
  font-weight: 600;
}

.rank-method-section .step-desc {
  font-size: 14px;
  color: var(--text-sub);
}

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

.rank-genre-section .genre-map-row {
  background: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 18px 20px;
  min-width: 0;
}

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

.rank-genre-section .genre-map-desc {
  font-size: 14px;
  color: var(--text-sub);
}

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

.rank-change-section .change-item {
  background: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 20px;
  min-width: 0;
}

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

.rank-change-section .change-desc {
  font-size: 14px;
  color: var(--text-sub);
}

.rank-more-section .more-links {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px 24px;
}

.rank-more-section .more-link-item {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 10px;
  padding: 14px 18px;
  background: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  min-width: 0;
  font-size: 14px;
}

.rank-more-section .more-link-item a {
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  min-height: 32px;
}

.rank-more-section .more-link-desc {
  color: var(--text-sub);
  font-size: 13px;
}

/* ------------------------------------------------------------
   pages — 阅读说明 guide
   ------------------------------------------------------------ */
.section-fields,
.section-rules,
.section-boundary,
.section-feedback,
.section-faq,
.section-related {
  margin-bottom: 44px;
}

.section-fields .field-figure {
  background: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  margin-bottom: 22px;
  max-width: 720px;
}

.section-fields .field-figure img {
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  background: var(--bg-soft);
}

.section-fields .field-figure figcaption {
  font-size: 13px;
  color: var(--text-sub);
  padding: 10px 16px;
  border-top: 1px solid var(--line);
}

.section-fields .field-table {
  background: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
}

.section-fields .field-table .field-row {
  display: grid;
  grid-template-columns: minmax(120px, 0.3fr) minmax(0, 1fr) minmax(140px, 0.6fr);
  gap: 18px;
  padding: 14px 22px;
  border-bottom: 1px solid var(--line);
  font-size: 14px;
  align-items: start;
}

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

.section-fields .field-table .field-row-head {
  background: var(--bg-soft);
  font-weight: 600;
  color: var(--text-main);
}

.section-fields .field-table .field-cell {
  min-width: 0;
}

.section-fields .field-table .field-meaning {
  color: var(--text-sub);
}

.section-fields .field-table .field-value {
  color: var(--text-sub);
}

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

.section-rules .rule-column {
  background: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 22px;
  min-width: 0;
}

.section-rules .rule-column .column-title {
  font-size: 17px;
  font-weight: 600;
  padding-bottom: 12px;
  margin-bottom: 12px;
  border-bottom: 1px solid var(--line);
}

.section-rules .rule-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.section-rules .rule-item {
  font-size: 14px;
  color: var(--text-sub);
  padding-left: 16px;
  position: relative;
}

.section-rules .rule-item::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.72em;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--brand);
}

.section-rules .status-list {
  display: grid;
  grid-template-columns: minmax(80px, 0.35fr) minmax(0, 1fr);
  gap: 10px 16px;
  font-size: 14px;
}

.section-rules .status-list dt {
  font-weight: 600;
  color: var(--text-main);
}

.section-rules .status-list dd {
  color: var(--text-sub);
}

.section-boundary .boundary-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 20px;
}

.section-boundary .boundary-item {
  background: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 20px;
  min-width: 0;
}

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

.section-boundary .boundary-text {
  font-size: 14px;
  color: var(--text-sub);
}

.section-feedback .step-list {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 18px;
}

.section-feedback .step-item {
  background: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 18px;
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.section-feedback .step-index {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--brand);
  color: #FFFFFF;
  font-size: 13px;
  font-weight: 600;
}

.section-feedback .step-title {
  font-size: 15px;
  font-weight: 600;
}

.section-feedback .step-text {
  font-size: 14px;
  color: var(--text-sub);
}

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

.section-faq .faq-item {
  background: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 0 20px;
}

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

.section-faq .faq-question {
  display: flex;
  align-items: center;
  gap: 10px;
  min-height: 52px;
  padding: 12px 0;
  font-size: 16px;
  font-weight: 600;
  color: var(--text-main);
  cursor: pointer;
  list-style: none;
}

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

.section-faq .faq-question::before {
  content: "";
  flex: 0 0 auto;
  width: 8px;
  height: 8px;
  border-right: 2px solid var(--text-sub);
  border-bottom: 2px solid var(--text-sub);
  transform: rotate(-45deg);
  transition: transform 0.18s ease;
}

.section-faq .faq-item[open] .faq-question::before {
  transform: rotate(45deg);
}

.section-faq .faq-answer {
  font-size: 14px;
  color: var(--text-sub);
  padding: 0 0 18px 18px;
  max-width: 72ch;
}

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

.section-related .related-item {
  min-width: 0;
}

.section-related .related-item a {
  display: flex;
  align-items: center;
  min-height: 44px;
  padding: 12px 16px;
  background: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  color: var(--text-main);
  font-size: 14px;
  transition: border-color 0.15s ease, color 0.15s ease;
}

.section-related .related-item a:hover {
  border-color: var(--brand);
  color: var(--brand);
}

/* ------------------------------------------------------------
   pages — 404
   ------------------------------------------------------------ */
.error-main {
  display: flex;
  align-items: flex-start;
  justify-content: center;
  padding-top: 60px;
  padding-bottom: 80px;
}

.error-block {
  background: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 40px;
  max-width: 640px;
  width: 100%;
  text-align: center;
}

.error-code {
  font-family: var(--font-mono);
  font-size: 44px;
  font-weight: 600;
  color: var(--brand);
  line-height: 1.1;
  margin-bottom: 12px;
}

.error-title {
  font-size: 24px;
  font-weight: 600;
  margin-bottom: 12px;
}

.error-text {
  color: var(--text-sub);
  font-size: 15px;
  margin-bottom: 24px;
}

.error-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px;
  margin-bottom: 24px;
}

.error-links a {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 8px 18px;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-sm);
  color: var(--text-main);
  font-size: 15px;
}

.error-links a:hover {
  border-color: var(--brand);
  color: var(--brand);
}

.error-actions {
  padding-top: 20px;
  border-top: 1px solid var(--line);
}

.error-home-link {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 10px 24px;
  background: var(--brand);
  color: #FFFFFF;
  border-radius: var(--radius-sm);
  font-size: 15px;
  font-weight: 600;
}

.error-home-link:hover {
  background: var(--brand-dark);
  color: #FFFFFF;
}

/* ------------------------------------------------------------
   responsive — 平板 768-1023px
   ------------------------------------------------------------ */
@media (max-width: 1023px) {
  .hero-timeline {
    grid-template-columns: minmax(0, 1fr);
    gap: 26px;
    padding: 24px;
  }

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

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

  .duo-grid,
  .field-boundary-grid,
  .diff-columns,
  .rank-reason-section .reason-columns,
  .section-rules .rule-columns,
  .map-columns,
  .rank-genre-section .genre-map {
    grid-template-columns: minmax(0, 1fr);
  }

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

  .topic-cards,
  .rank-method-section .method-steps,
  .rank-change-section .change-block,
  .record-notes .note-block {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

  .genre-block .genre-block-body {
    grid-template-columns: 168px minmax(0, 1fr);
  }

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

/* ------------------------------------------------------------
   responsive — 手机 <768px
   ------------------------------------------------------------ */
@media (max-width: 767px) {
  body {
    font-size: 15px;
  }

  .header-inner {
    padding: 0 16px;
    gap: 12px;
    flex-wrap: nowrap;
  }

  .nav-toggle {
    display: flex;
  }

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

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

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

  .nav-list a {
    min-height: 46px;
    padding: 11px 4px;
    border-bottom: 1px solid var(--line);
    border-radius: 0;
    font-size: 15px;
  }

  .nav-list a.is-current {
    border-bottom-color: var(--line);
    border-left: 3px solid var(--brand);
    padding-left: 10px;
  }

  .site-main {
    padding: 20px 16px 36px;
  }

  .fact-bar {
    font-size: 12px;
    padding: 7px 16px;
  }

  .hero-timeline {
    padding: 20px 16px;
    gap: 22px;
    margin-bottom: 32px;
  }

  .hero-title {
    font-size: 24px;
  }

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

  .hero-entry a {
    width: 100%;
    justify-content: center;
  }

  .hero-timeline-item {
    grid-template-columns: 76px minmax(0, 1fr);
    gap: 10px;
  }

  .hero-timeline-item .timeline-genre {
    grid-column: 2;
    font-size: 12px;
  }

  .genre-grid,
  .index-grid,
  .topic-cards,
  .rank-method-section .method-steps,
  .rank-change-section .change-block,
  .record-notes .note-block,
  .chase-path .path-list,
  .section-feedback .step-list,
  .section-related .related-list,
  .section-boundary .boundary-list,
  .rank-more-section .more-links {
    grid-template-columns: minmax(0, 1fr);
  }

  .cover-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 16px;
  }

  .cover-card:nth-child(3n + 2) .cover-figure {
    aspect-ratio: 3 / 4;
  }

  .section-title {
    font-size: 19px;
  }

  .page-title {
    font-size: 22px;
  }

  .section {
    margin-bottom: 34px;
  }

  .update-row {
    grid-template-columns: 78px minmax(0, 1fr);
    gap: 8px 10px;
  }

  .update-row .update-genre,
  .update-row .update-status {
    grid-column: 2;
    font-size: 12px;
  }

  .rank-section .rank-item {
    grid-template-columns: 32px 60px minmax(0, 1fr);
    gap: 12px;
  }

  .rank-section .rank-cover {
    width: 60px;
  }

  .genre-block {
    padding: 18px 16px;
  }

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

  .genre-block .genre-cover {
    max-width: 180px;
  }

  .genre-index-row {
    grid-template-columns: 40px minmax(0, 1fr);
    gap: 12px;
    padding: 16px;
  }

  .field-col .field-list,
  .section-rules .status-list {
    grid-template-columns: minmax(0, 1fr);
    gap: 4px;
  }

  .field-col .field-list .field-desc,
  .section-rules .status-list dd {
    margin-bottom: 10px;
  }

  .section-fields .field-table .field-row {
    grid-template-columns: minmax(0, 1fr);
    gap: 6px;
    padding: 14px 16px;
  }

  .section-fields .field-table .field-row-head {
    display: none;
  }

  .timeline-group {
    padding: 16px;
  }

  .timeline-group .timeline-row {
    grid-template-columns: 56px minmax(0, 1fr);
    gap: 12px;
  }

  .timeline-group .timeline-thumb {
    width: 56px;
  }

  .status-fields .field-row {
    grid-template-columns: minmax(0, 1fr);
    gap: 6px;
    padding: 14px 16px;
  }

  .duo-col,
  .field-col,
  .boundary-col,
  .diff-column,
  .rank-reason-section .reason-col,
  .section-rules .rule-column,
  .map-columns .map-col,
  .record-notes .note-item,
  .rank-change-section .change-item,
  .topic-card,
  .index-col,
  .genre-card,
  .rank-method-section .method-step,
  .section-feedback .step-item {
    padding: 18px 16px;
  }

  .error-main {
    padding-top: 32px;
    padding-bottom: 48px;
  }

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

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

  .footer-inner {
    grid-template-columns: minmax(0, 1fr);
    gap: 22px;
    padding: 28px 16px 0;
  }

  .footer-copyright {
    padding: 16px 16px 22px;
    margin-top: 22px;
  }

  .footer-brand-desc {
    max-width: none;
  }
}

/* ------------------------------------------------------------
   responsive — 超窄屏 390px 兜底
   ------------------------------------------------------------ */
@media (max-width: 420px) {
  .cover-grid {
    grid-template-columns: minmax(0, 1fr);
  }

  .cover-card:nth-child(3n + 2) .cover-figure {
    aspect-ratio: 4 / 5;
  }

  .hero-timeline-item {
    grid-template-columns: 68px minmax(0, 1fr);
  }

  .rank-section .rank-item {
    grid-template-columns: 28px minmax(0, 1fr);
  }

  .rank-section .rank-cover {
    grid-column: 2;
    width: 64px;
  }

  .rank-section .rank-body {
    grid-column: 2;
  }
}

/* ------------------------------------------------------------
   motion — 轻量滚动出现（仅增强，不影响初始可见）
   ------------------------------------------------------------ */
@media (prefers-reduced-motion: no-preference) {
  .reveal {
    animation: reveal-in 0.4s ease-out both;
  }

  @keyframes reveal-in {
    from {
      transform: translateY(10px);
    }
    to {
      transform: translateY(0);
    }
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    transition-duration: 0.001ms !important;
  }
}