:root {
  --bg: #F7F5F0;
  --ink: #1E2A24;
  --ink-soft: #5A6B60;
  --accent: #D9772F;
  --line: #DCDAD2;
  --card: #FFFFFF;
  --tag-bg: #E8EFE9;
  --radius: 8px;
  --shadow: 0 1px 2px rgba(30, 42, 36, 0.06), 0 6px 18px rgba(30, 42, 36, 0.05);
  --shadow-hover: 0 2px 4px rgba(30, 42, 36, 0.08), 0 12px 26px rgba(30, 42, 36, 0.09);
  --wrap: 1120px;
  --gap: 24px;
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Source Han Sans SC", "Noto Sans CJK SC", sans-serif;
  --font-mono: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, "Courier New", monospace;
}

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

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

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.75;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4 {
  margin: 0;
  color: var(--ink);
  font-weight: 700;
  line-height: 1.35;
}

p {
  margin: 0;
}

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

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

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

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

figure {
  margin: 0;
}

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

button {
  font: inherit;
  color: inherit;
  cursor: pointer;
}

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

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

.header-top,
.site-nav,
.footer-inner,
.site-main {
  width: 100%;
  max-width: var(--wrap);
  margin: 0 auto;
  padding-left: 24px;
  padding-right: 24px;
}

.header-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding-top: 14px;
  padding-bottom: 12px;
}

.brand {
  display: flex;
  flex-direction: column;
  gap: 2px;
  min-width: 0;
}

.brand-name {
  font-size: 20px;
  font-weight: 700;
  color: var(--ink);
}

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

.brand-slogan {
  font-size: 13px;
  line-height: 1.6;
  color: var(--ink-soft);
}

.header-top-side {
  display: flex;
  align-items: center;
  gap: 16px;
  min-width: 0;
}

.site-note {
  font-size: 13px;
  line-height: 1.6;
  color: var(--ink-soft);
  max-width: 420px;
}

.header-link {
  flex: none;
  padding: 8px 14px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  font-size: 13px;
  font-weight: 600;
  color: var(--ink);
  background: var(--bg);
  white-space: nowrap;
}

.header-link:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.site-nav {
  border-top: 1px solid var(--line);
}

.nav-list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 4px;
  padding-bottom: 6px;
}

.nav-list li {
  display: flex;
}

.nav-list a {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 0 14px;
  border-radius: var(--radius);
  font-size: 15px;
  font-weight: 600;
  color: var(--ink-soft);
  border-bottom: 2px solid transparent;
}

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

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

.nav-toggle {
  display: none;
  align-items: center;
  gap: 10px;
  min-height: 44px;
  padding: 0 4px;
  background: none;
  border: 0;
}

.nav-toggle-bar {
  display: block;
  width: 20px;
  height: 2px;
  background: var(--ink);
  border-radius: 2px;
}

.nav-toggle-text {
  font-size: 14px;
  font-weight: 600;
}

.site-main {
  display: block;
  padding-top: 28px;
  padding-bottom: 56px;
}

.section {
  margin-top: 48px;
}

.section-head {
  max-width: 720px;
  margin-bottom: 22px;
}

.section-title {
  font-size: 24px;
  margin-bottom: 8px;
}

.section-desc,
.section-lead {
  font-size: 15px;
  line-height: 1.75;
  color: var(--ink-soft);
  max-width: 720px;
}

.section-foot {
  margin-top: 20px;
  font-size: 14px;
}

.text-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 14px;
  font-weight: 600;
  color: var(--accent);
  border-bottom: 1px solid rgba(217, 119, 47, 0.35);
  padding-bottom: 2px;
}

.text-link:hover {
  color: var(--ink);
  border-bottom-color: var(--ink);
}

.col-title {
  font-size: 18px;
  margin-bottom: 8px;
}

.col-desc {
  font-size: 14px;
  color: var(--ink-soft);
  margin-bottom: 16px;
}

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

/* ============ header fact bar ============ */
.fact-bar {
  background: var(--ink);
  color: #E8EFE9;
}

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

/* ============ breadcrumb & page header ============ */
.breadcrumb {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  font-size: 13px;
  color: var(--ink-soft);
  margin-bottom: 18px;
}

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

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

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

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

.page-header {
  max-width: 820px;
  padding-bottom: 22px;
  margin-bottom: 28px;
  border-bottom: 1px solid var(--line);
}

.page-title {
  font-size: 34px;
  margin-bottom: 12px;
}

.page-description {
  font-size: 16px;
  line-height: 1.8;
  color: var(--ink-soft);
}

.page-description a {
  color: var(--accent);
  border-bottom: 1px solid rgba(217, 119, 47, 0.35);
}

/* ============ hero (home) ============ */
.hero {
  padding: 8px 0 4px;
}

.hero-inner {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
  gap: 40px;
  align-items: center;
  padding: 32px;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

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

.hero-kicker {
  font-size: 13px;
  font-weight: 600;
  color: var(--accent);
  margin-bottom: 12px;
}

.hero-title {
  font-size: 34px;
  margin-bottom: 14px;
}

.hero-lead {
  font-size: 16px;
  line-height: 1.8;
  color: var(--ink-soft);
  max-width: 620px;
  margin-bottom: 22px;
}

.hero-scenes {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
}

.scene-card {
  display: flex;
  flex-direction: column;
  gap: 4px;
  min-height: 88px;
  padding: 14px;
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

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

.scene-name {
  font-size: 15px;
  font-weight: 700;
}

.scene-desc {
  font-size: 13px;
  line-height: 1.6;
  color: var(--ink-soft);
}

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

.hero-media img {
  width: 100%;
  height: 340px;
  object-fit: cover;
  border-radius: var(--radius);
  border: 1px solid var(--line);
}

.hero-media figcaption {
  margin-top: 10px;
  font-size: 13px;
  line-height: 1.6;
  color: var(--ink-soft);
}

/* ============ genre grid (home) ============ */
.genre-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: var(--gap);
}

.genre-card {
  display: flex;
  flex-direction: column;
  padding: 20px;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

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

.genre-name {
  font-size: 18px;
  margin-bottom: 10px;
}

.genre-trait {
  font-size: 14px;
  line-height: 1.75;
  color: var(--ink-soft);
  margin-bottom: 12px;
}

.genre-tags {
  font-size: 13px;
  line-height: 1.7;
  color: var(--ink);
  padding: 8px 10px;
  background: var(--tag-bg);
  border-radius: var(--radius);
  margin-bottom: 16px;
}

.genre-entry {
  margin-top: auto;
  font-size: 14px;
  font-weight: 600;
  color: var(--accent);
  border-bottom: 1px solid rgba(217, 119, 47, 0.35);
  padding-bottom: 2px;
  align-self: flex-start;
}

.genre-entry:hover {
  color: var(--ink);
  border-bottom-color: var(--ink);
}

/* ============ cover grid (home) ============ */
.cover-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--gap);
}

.cover-card {
  display: flex;
  flex-direction: column;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
}

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

.cover-media {
  border-bottom: 1px solid var(--line);
}

.cover-media img {
  width: 100%;
  height: 220px;
  object-fit: cover;
}

.cover-card:nth-child(3n + 2) .cover-media img {
  height: 260px;
}

.cover-body {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 16px;
}

.cover-title {
  font-size: 17px;
}

.cover-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.tag {
  display: inline-flex;
  align-items: center;
  padding: 2px 9px;
  font-size: 12px;
  line-height: 1.7;
  color: var(--ink);
  background: var(--tag-bg);
  border-radius: var(--radius);
}

.cover-chapter {
  font-size: 13px;
  line-height: 1.6;
  color: var(--ink-soft);
  font-family: var(--font-mono);
}

/* ============ split section (home) ============ */
.split-layout {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--gap);
  margin-top: 20px;
}

.split-col {
  padding: 22px;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

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

.update-brief,
.rank-brief {
  display: grid;
  grid-template-columns: 92px minmax(0, 1fr) auto;
  align-items: baseline;
  gap: 6px 12px;
  padding: 11px 0;
  border-bottom: 1px dashed var(--line);
  font-size: 14px;
}

.update-brief:last-child,
.rank-brief:last-child {
  border-bottom: 0;
}

.update-date,
.rank-no {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--ink-soft);
}

.update-entry,
.rank-entry {
  font-weight: 600;
  min-width: 0;
}

.update-tag,
.rank-tag {
  font-size: 12px;
  color: var(--ink-soft);
  padding: 1px 8px;
  background: var(--tag-bg);
  border-radius: var(--radius);
  justify-self: start;
}

.update-range {
  grid-column: 2 / -1;
  font-size: 13px;
  color: var(--ink-soft);
  font-family: var(--font-mono);
}

.rank-brief {
  grid-template-columns: 36px minmax(0, 1fr) auto;
}

.rank-note {
  grid-column: 2 / -1;
  font-size: 13px;
  line-height: 1.65;
  color: var(--ink-soft);
}

/* ============ fields section (home) ============ */
.fields-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
  gap: var(--gap);
  margin-top: 20px;
}

.fields-col {
  padding: 22px;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  min-width: 0;
}

.field-table {
  font-size: 14px;
  text-align: left;
}

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

.field-table th,
.field-table td {
  padding: 10px 12px;
  border-bottom: 1px solid var(--line);
  vertical-align: top;
  line-height: 1.7;
}

.field-table thead th {
  font-size: 13px;
  color: var(--ink-soft);
  font-weight: 600;
  background: var(--bg);
  border-bottom: 1px solid var(--line);
}

.field-table tbody th {
  font-weight: 700;
  white-space: nowrap;
}

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

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

.boundary-item {
  position: relative;
  padding-left: 18px;
  font-size: 14px;
  line-height: 1.75;
  color: var(--ink-soft);
}

.boundary-item::before {
  content: "";
  position: absolute;
  left: 0;
  top: 10px;
  width: 7px;
  height: 7px;
  border-radius: 2px;
  background: var(--accent);
}

/* ============ site index nav (home) ============ */
.index-list {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 14px;
}

.index-item a {
  display: flex;
  flex-direction: column;
  gap: 6px;
  height: 100%;
  padding: 16px;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.index-item a:hover {
  border-color: var(--accent);
  box-shadow: var(--shadow-hover);
  transform: translateY(-2px);
}

.index-name {
  font-size: 15px;
  font-weight: 700;
}

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

/* ============ footer ============ */
.site-footer {
  background: var(--card);
  border-top: 1px solid var(--line);
  margin-top: 24px;
}

.footer-inner {
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) repeat(3, minmax(0, 1fr));
  gap: 32px;
  padding-top: 40px;
  padding-bottom: 32px;
}

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

.footer-name {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 8px;
}

.footer-desc {
  font-size: 13px;
  line-height: 1.75;
  color: var(--ink-soft);
  max-width: 340px;
}

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

.footer-col-title {
  font-size: 14px;
  font-weight: 700;
  margin-bottom: 12px;
}

.footer-list {
  display: flex;
  flex-direction: column;
  gap: 9px;
}

.footer-list a {
  display: inline-flex;
  align-items: center;
  min-height: 24px;
  font-size: 13px;
  line-height: 1.6;
  color: var(--ink-soft);
}

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

.footer-copy {
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 16px 24px 28px;
  border-top: 1px solid var(--line);
  font-size: 13px;
  line-height: 1.7;
  color: var(--ink-soft);
}

/* ============ genres page ============ */
.genre-index .section-lead {
  margin-bottom: 18px;
}

.filter-bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
}

.filter-chip,
.filter-clear {
  min-height: 40px;
  padding: 0 16px;
  font-size: 14px;
  font-weight: 600;
  color: var(--ink-soft);
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.filter-chip:hover,
.filter-clear:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.filter-chip.is-active {
  color: #FFFFFF;
  background: var(--accent);
  border-color: var(--accent);
}

.filter-clear {
  color: var(--ink);
  background: var(--bg);
}

.genre-block {
  padding-top: 8px;
  border-top: 1px solid var(--line);
}

.genre-head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 12px;
  margin-bottom: 18px;
}

.genre-head h2 {
  font-size: 24px;
}

.genre-tag {
  font-size: 13px;
  color: var(--ink-soft);
  padding: 2px 10px;
  background: var(--tag-bg);
  border-radius: var(--radius);
}

.genre-body {
  display: grid;
  grid-template-columns: minmax(0, 0.85fr) minmax(0, 1.15fr);
  gap: var(--gap);
  align-items: start;
}

.genre-intro {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 20px;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.genre-intro p {
  font-size: 14px;
  line-height: 1.8;
  color: var(--ink-soft);
}

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

.entry-card {
  display: flex;
  flex-direction: column;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
}

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

.entry-cover {
  border-bottom: 1px solid var(--line);
}

.entry-cover img {
  width: 100%;
  height: 190px;
  object-fit: cover;
}

.entry-meta {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 16px;
}

.entry-name {
  font-size: 17px;
}

.entry-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.entry-fields {
  font-size: 13px;
  line-height: 1.7;
  color: var(--ink-soft);
  font-family: var(--font-mono);
}

.genre-fields .section-lead {
  margin-bottom: 18px;
}

.genre-fields .section-lead a {
  color: var(--accent);
  border-bottom: 1px solid rgba(217, 119, 47, 0.35);
}

.field-note {
  margin-top: 16px;
  font-size: 13px;
  line-height: 1.75;
  color: var(--ink-soft);
}

.field-note a {
  color: var(--accent);
  border-bottom: 1px solid rgba(217, 119, 47, 0.35);
}

/* ============ updates page ============ */
.update-fields .field-tag-list {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 12px;
}

.field-tag {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 14px;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.field-tag-name {
  font-size: 14px;
  font-weight: 700;
}

.field-tag-note {
  font-size: 13px;
  line-height: 1.65;
  color: var(--ink-soft);
}

.field-footnote {
  margin-top: 16px;
  font-size: 13px;
  line-height: 1.75;
  color: var(--ink-soft);
}

.field-footnote a {
  color: var(--accent);
  border-bottom: 1px solid rgba(217, 119, 47, 0.35);
}

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

.update-group {
  padding: 20px 22px;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  margin-bottom: 16px;
}

.update-date {
  font-size: 16px;
  font-weight: 700;
  padding-bottom: 12px;
  margin-bottom: 4px;
  border-bottom: 1px solid var(--line);
}

.update-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 6px;
  padding: 14px 0;
  border-bottom: 1px dashed var(--line);
}

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

.update-row.is-featured {
  grid-template-columns: 132px minmax(0, 1fr);
  gap: 20px;
  align-items: start;
}

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

.update-thumb img {
  width: 100%;
  height: 176px;
  object-fit: cover;
}

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

.update-name {
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 6px;
}

.update-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 6px;
}

.update-genre,
.update-range,
.update-status {
  font-size: 12px;
  line-height: 1.7;
  padding: 2px 9px;
  border-radius: var(--radius);
  background: var(--tag-bg);
  color: var(--ink);
}

.update-range {
  font-family: var(--font-mono);
}

.update-status {
  background: transparent;
  border: 1px solid var(--line);
  color: var(--ink-soft);
}

.update-note {
  font-size: 14px;
  line-height: 1.75;
  color: var(--ink-soft);
}

.update-tail {
  margin-top: 18px;
  font-size: 14px;
  line-height: 1.8;
  color: var(--ink-soft);
}

.update-tail a {
  color: var(--accent);
  border-bottom: 1px solid rgba(217, 119, 47, 0.35);
}

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

.status-range-col {
  padding: 22px;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  min-width: 0;
}

.status-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-top: 12px;
}

.status-item {
  padding: 10px 12px;
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.status-name {
  font-size: 14px;
  line-height: 1.7;
  color: var(--ink-soft);
}

.status-range-col .col-note {
  margin-top: 14px;
  font-size: 13px;
  line-height: 1.75;
  color: var(--ink-soft);
}

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

.next-link {
  display: flex;
  flex-direction: column;
  gap: 6px;
  height: 100%;
  padding: 18px;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.next-link:hover {
  border-color: var(--accent);
  box-shadow: var(--shadow-hover);
  transform: translateY(-2px);
}

.next-name {
  font-size: 15px;
  font-weight: 700;
}

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

/* ============ ranking page ============ */
.rank-basis .section-lead {
  margin-bottom: 20px;
}

.basis-list {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--gap);
}

.basis-item {
  padding: 20px;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  min-width: 0;
}

.basis-title {
  font-size: 16px;
  margin-bottom: 8px;
}

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

.boundary-note {
  margin-top: 18px;
  padding: 14px 18px;
  background: var(--tag-bg);
  border-left: 3px solid var(--accent);
  border-radius: var(--radius);
  font-size: 14px;
  line-height: 1.8;
  color: var(--ink-soft);
}

.rank-list-section .section-lead {
  margin-bottom: 20px;
}

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

.rank-item {
  display: grid;
  align-items: start;
  gap: 16px;
  padding: 18px 20px;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.rank-item:hover {
  border-color: var(--accent);
  box-shadow: var(--shadow-hover);
  transform: translateY(-2px);
}

.rank-item-featured {
  grid-template-columns: 48px 128px minmax(0, 1fr);
}

.rank-item-compact {
  grid-template-columns: 48px minmax(0, 1fr);
  padding: 14px 20px;
}

.rank-number {
  font-family: var(--font-mono);
  font-size: 20px;
  font-weight: 700;
  color: var(--accent);
  line-height: 1.4;
}

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

.rank-cover img {
  width: 100%;
  height: 168px;
  object-fit: cover;
}

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

.rank-name {
  font-size: 17px;
  margin-bottom: 6px;
}

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

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

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

.rank-meta .rank-tag {
  font-size: 12px;
  padding: 2px 9px;
  background: var(--tag-bg);
  border-radius: var(--radius);
  color: var(--ink);
}

.rank-status {
  font-size: 12px;
  padding: 2px 9px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  color: var(--ink-soft);
}

.rank-summary {
  font-size: 14px;
  line-height: 1.8;
  color: var(--ink-soft);
}

.rank-more {
  margin-top: 20px;
  font-size: 14px;
  line-height: 1.8;
  color: var(--ink-soft);
}

.rank-more a {
  color: var(--accent);
  border-bottom: 1px solid rgba(217, 119, 47, 0.35);
}

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

.drift-col {
  padding: 20px;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  min-width: 0;
}

.drift-title {
  font-size: 16px;
  margin-bottom: 8px;
}

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

/* ============ guide page ============ */
.page-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 300px;
  gap: 40px;
  align-items: start;
}

.layout-main {
  min-width: 0;
}

.content-section {
  scroll-margin-top: 96px;
  padding-bottom: 32px;
  margin-bottom: 32px;
  border-bottom: 1px solid var(--line);
}

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

.content-section h2 {
  font-size: 24px;
  margin-bottom: 10px;
}

.content-section .section-lead {
  margin-bottom: 18px;
}

.field-figure {
  margin-bottom: 20px;
}

.field-figure img {
  width: 100%;
  height: 260px;
  object-fit: cover;
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.field-figure figcaption {
  margin-top: 10px;
  font-size: 13px;
  line-height: 1.7;
  color: var(--ink-soft);
}

.table-wrap {
  width: 100%;
  overflow-x: auto;
}

.section-note {
  margin-top: 16px;
  font-size: 14px;
  line-height: 1.8;
  color: var(--ink-soft);
}

.section-note a {
  color: var(--accent);
  border-bottom: 1px solid rgba(217, 119, 47, 0.35);
}

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

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

.boundary-col h3 {
  font-size: 16px;
  margin-bottom: 12px;
}

.boundary-include {
  border-top: 3px solid var(--accent);
}

.boundary-exclude {
  border-top: 3px solid var(--ink-soft);
}

.boundary-col .boundary-list {
  gap: 9px;
}

.boundary-tip {
  margin-top: 18px;
  padding: 14px 18px;
  background: var(--tag-bg);
  border-radius: var(--radius);
  font-size: 14px;
  line-height: 1.8;
  color: var(--ink-soft);
}

.maintain-steps {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
  margin-top: 20px;
  counter-reset: maintain;
}

.maintain-step {
  position: relative;
  padding: 20px 18px 18px;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  min-width: 0;
}

.maintain-step::before {
  counter-increment: maintain;
  content: counter(maintain, decimal-leading-zero);
  display: block;
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 700;
  color: var(--accent);
  margin-bottom: 8px;
}

.maintain-step h3 {
  font-size: 15px;
  margin-bottom: 8px;
}

.maintain-step p {
  font-size: 13px;
  line-height: 1.75;
  color: var(--ink-soft);
}

.faq-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-top: 18px;
}

.faq-item {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 4px 18px;
}

.faq-item summary {
  display: flex;
  align-items: center;
  min-height: 48px;
  padding: 6px 0;
  font-size: 15px;
  font-weight: 700;
  cursor: pointer;
  list-style: none;
}

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

.faq-item summary::after {
  content: "+";
  margin-left: auto;
  padding-left: 16px;
  font-size: 18px;
  font-weight: 400;
  color: var(--accent);
}

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

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

.layout-aside {
  position: sticky;
  top: 108px;
  display: flex;
  flex-direction: column;
  gap: 18px;
  min-width: 0;
}

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

.aside-block h2 {
  font-size: 15px;
  margin-bottom: 12px;
}

.aside-nav-list,
.aside-link-list {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.aside-nav-list a,
.aside-link-list a {
  display: flex;
  align-items: center;
  min-height: 40px;
  padding: 6px 10px;
  font-size: 14px;
  color: var(--ink-soft);
  border-radius: var(--radius);
  border-left: 2px solid transparent;
}

.aside-nav-list a:hover,
.aside-link-list a:hover {
  color: var(--accent);
  background: var(--bg);
  border-left-color: var(--accent);
}

.quick-list {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 8px 12px;
  margin: 0;
  font-size: 13px;
}

.quick-list dt {
  font-weight: 700;
  color: var(--ink);
}

.quick-list dd {
  margin: 0;
  color: var(--ink-soft);
  line-height: 1.7;
}

/* ============ 404 ============ */
.error-main {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 62vh;
  padding-top: 48px;
  padding-bottom: 64px;
}

.error-block {
  width: 100%;
  max-width: 640px;
  padding: 40px 32px;
  text-align: center;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.error-code {
  font-family: var(--font-mono);
  font-size: 42px;
  font-weight: 700;
  color: var(--accent);
  line-height: 1.2;
  margin-bottom: 8px;
}

.error-block h1 {
  font-size: 26px;
  margin-bottom: 12px;
}

.error-text {
  font-size: 15px;
  line-height: 1.8;
  color: var(--ink-soft);
  margin-bottom: 24px;
}

.error-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px;
  margin-bottom: 20px;
}

.error-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0 20px;
  font-size: 14px;
  font-weight: 600;
  color: var(--ink);
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

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

.error-btn-primary {
  color: #FFFFFF;
  background: var(--accent);
  border-color: var(--accent);
}

.error-btn-primary:hover {
  color: #FFFFFF;
  background: #C1661F;
  border-color: #C1661F;
}

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

.error-hint a {
  color: var(--accent);
  border-bottom: 1px solid rgba(217, 119, 47, 0.35);
}

/* ============ motion ============ */
@media (prefers-reduced-motion: no-preference) {
  .scene-card,
  .genre-card,
  .cover-card,
  .entry-card,
  .index-item a,
  .next-link,
  .rank-item {
    transition: transform 0.18s ease, box-shadow 0.18s ease, border-color 0.18s ease;
  }
}

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

/* ============ responsive ============ */
@media (max-width: 1024px) {
  .hero-inner {
    grid-template-columns: minmax(0, 1fr);
    gap: 28px;
  }

  .hero-media img {
    height: 300px;
  }

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

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

  .cover-card:nth-child(3n + 2) .cover-media img {
    height: 220px;
  }

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

  .update-fields .field-tag-list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

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

  .page-layout {
    grid-template-columns: minmax(0, 1fr) 260px;
    gap: 28px;
  }
}

@media (max-width: 860px) {
  .hero-scenes {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .split-layout,
  .fields-layout,
  .genre-body,
  .status-range-cols,
  .boundary-grid {
    grid-template-columns: minmax(0, 1fr);
  }

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

  .page-layout {
    grid-template-columns: minmax(0, 1fr);
    gap: 32px;
  }

  .layout-aside {
    position: static;
    top: auto;
  }
}

@media (max-width: 768px) {
  .header-top,
  .site-nav,
  .footer-inner,
  .site-main,
  .fact-bar p,
  .footer-copy {
    padding-left: 18px;
    padding-right: 18px;
  }

  .header-top {
    align-items: flex-start;
    flex-wrap: wrap;
    gap: 10px;
  }

  .header-top-side {
    width: 100%;
    justify-content: space-between;
  }

  .site-note {
    max-width: none;
  }

  .site-nav {
    display: block;
  }

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

  .nav-list {
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 2px;
    padding: 8px 0 14px;
  }

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

  .nav-list li {
    display: block;
  }

  .nav-list a {
    min-height: 46px;
    padding: 0 12px;
    border-bottom: 0;
    border-left: 3px solid transparent;
  }

  .nav-list a.is-current {
    border-left-color: var(--accent);
    background: var(--bg);
  }

  .site-main {
    padding-top: 22px;
    padding-bottom: 44px;
  }

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

  .hero-inner {
    padding: 22px;
  }

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

  .hero-media img {
    height: 240px;
  }

  .section {
    margin-top: 36px;
  }

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

  .cover-media img,
  .cover-card:nth-child(3n + 2) .cover-media img,
  .entry-cover img,
  .field-figure img {
    height: 200px;
  }

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

  .update-thumb img {
    height: 200px;
  }

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

  .rank-item-featured .rank-cover {
    grid-column: 2 / -1;
    max-width: 200px;
  }

  .rank-cover img {
    height: 150px;
  }

  .rank-item-compact {
    grid-template-columns: 40px minmax(0, 1fr);
  }

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

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

  .error-block {
    padding: 32px 22px;
  }

  .error-code {
    font-size: 34px;
  }
}

@media (max-width: 480px) {
  .hero-scenes,
  .genre-grid,
  .cover-grid,
  .entry-grid,
  .index-list,
  .basis-list,
  .drift-columns,
  .next-list,
  .update-fields .field-tag-list,
  .maintain-steps {
    grid-template-columns: minmax(0, 1fr);
  }

  .hero-media img {
    height: 200px;
  }

  .cover-media img,
  .cover-card:nth-child(3n + 2) .cover-media img,
  .entry-cover img,
  .field-figure img {
    height: 190px;
  }

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

  .update-brief .update-tag,
  .rank-brief .rank-tag,
  .update-brief .update-range,
  .rank-brief .rank-note {
    grid-column: auto;
  }

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

  .quick-list dd {
    margin-bottom: 8px;
  }

  .field-table th,
  .field-table td {
    padding: 9px 10px;
  }
}