:root {
  --bg: #FBF8F4;
  --card: #FFFFFF;
  --text: #2B2723;
  --text-soft: #6E655C;
  --accent: #C4622D;
  --batch: #8C6A3F;
  --line: #E7DFD5;
  --link: #A34E1F;
  --radius: 6px;
  --radius-sm: 4px;
  --shadow: 0 1px 2px rgba(43, 39, 35, 0.04);
  --shadow-hover: 0 4px 12px rgba(43, 39, 35, 0.10);
  --container: 1180px;
  --gap: 32px;
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  --font-mono: "SF Mono", "Menlo", "Consolas", "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(--text);
  font-family: var(--font-sans);
  font-size: 15px;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
}

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

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

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

h1, h2, h3, h4 {
  margin: 0;
  color: var(--text);
  font-weight: 600;
  line-height: 1.35;
}

p {
  margin: 0 0 12px;
  color: var(--text-soft);
}

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

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

figure {
  margin: 0;
}

button {
  font-family: inherit;
  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
   ============================================================ */

.site-body {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.site-main {
  flex: 1 1 auto;
  width: 100%;
}

.home-main,
.inner-main {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px 64px;
}

.inner-main {
  padding-top: 24px;
}

/* header ---------------------------------------------------- */

.site-header {
  background: var(--card);
  border-bottom: 1px solid var(--line);
  position: sticky;
  top: 0;
  z-index: 50;
}

.header-inner {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
  height: 64px;
  display: flex;
  align-items: center;
  gap: 24px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
  text-decoration: none;
}

.brand:hover {
  text-decoration: none;
}

.brand-mark {
  display: block;
  width: 28px;
  height: 28px;
  border-radius: var(--radius-sm);
  background: var(--accent);
  position: relative;
  flex-shrink: 0;
}

.brand-mark::after {
  content: "";
  position: absolute;
  inset: 7px 9px;
  background: var(--card);
  border-radius: 1px;
}

.brand-text {
  font-size: 17px;
  font-weight: 700;
  color: var(--text);
  letter-spacing: 0.5px;
}

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

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

.nav-link {
  display: inline-flex;
  align-items: center;
  padding: 8px 14px;
  border-radius: var(--radius-sm);
  color: var(--text-soft);
  font-size: 14px;
  font-weight: 500;
  text-decoration: none;
  transition: background 0.15s, color 0.15s;
}

.nav-link:hover,
.nav-link:focus {
  background: var(--bg);
  color: var(--accent);
  text-decoration: none;
}

.nav-link.is-current {
  color: var(--accent);
  background: rgba(196, 98, 45, 0.08);
}

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

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

/* fact bar -------------------------------------------------- */

.fact-bar {
  background: var(--batch);
  color: #FBF8F4;
  font-size: 13px;
  line-height: 1.5;
}

.fact-bar p,
.fact-text,
.fact-bar-text {
  max-width: var(--container);
  margin: 0 auto;
  padding: 8px 24px;
  color: #FBF8F4;
}

/* footer ---------------------------------------------------- */

.site-footer {
  background: var(--card);
  border-top: 1px solid var(--line);
  margin-top: 48px;
}

.footer-inner {
  max-width: var(--container);
  margin: 0 auto;
  padding: 40px 24px 28px;
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr 1fr;
  gap: 32px;
}

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

.footer-logo {
  font-size: 17px;
  font-weight: 700;
  color: var(--text);
  margin: 0 0 6px;
}

.footer-slogan {
  font-size: 13px;
  color: var(--accent);
  margin: 0 0 12px;
}

.footer-about {
  font-size: 13px;
  color: var(--text-soft);
  line-height: 1.7;
  max-width: 320px;
  margin: 0;
}

.footer-title {
  font-size: 14px;
  font-weight: 600;
  color: var(--text);
  margin: 0 0 12px;
}

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

.footer-list a {
  font-size: 13px;
  color: var(--text-soft);
  text-decoration: none;
}

.footer-list a:hover {
  color: var(--accent);
  text-decoration: none;
}

.footer-bottom {
  max-width: var(--container);
  margin: 0 auto;
  padding: 16px 24px 24px;
  border-top: 1px solid var(--line);
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 8px;
}

.footer-boundary,
.footer-copy {
  font-size: 12px;
  color: var(--text-soft);
  margin: 0;
}

/* breadcrumb ------------------------------------------------ */

.breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--text-soft);
  padding: 4px 0 0;
}

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

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

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

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

/* page header ----------------------------------------------- */

.page-header {
  padding: 20px 0 28px;
  border-bottom: 1px solid var(--line);
  margin-bottom: 32px;
}

.page-title {
  font-size: 30px;
  font-weight: 700;
  color: var(--text);
  margin: 0 0 12px;
}

.page-description {
  font-size: 15px;
  color: var(--text-soft);
  max-width: 760px;
  line-height: 1.75;
  margin: 0;
}

/* section base ---------------------------------------------- */

.section {
  margin-bottom: 48px;
}

.section-head {
  margin-bottom: 24px;
}

.section-title {
  font-size: 22px;
  font-weight: 600;
  color: var(--text);
  margin: 0 0 8px;
}

.section-desc,
.section-lead {
  font-size: 14px;
  color: var(--text-soft);
  max-width: 720px;
  line-height: 1.75;
  margin: 0;
}

/* ============================================================
   components
   ============================================================ */

/* buttons --------------------------------------------------- */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 10px 22px;
  border-radius: var(--radius);
  font-size: 14px;
  font-weight: 600;
  text-decoration: none;
  transition: background 0.15s, color 0.15s, border-color 0.15s;
}

.btn-primary {
  background: var(--accent);
  color: #FFFFFF;
  border: 1px solid var(--accent);
}

.btn-primary:hover,
.btn-primary:focus {
  background: var(--link);
  border-color: var(--link);
  color: #FFFFFF;
  text-decoration: none;
}

.btn-ghost {
  background: transparent;
  color: var(--accent);
  border: 1px solid var(--accent);
}

.btn-ghost:hover,
.btn-ghost:focus {
  background: rgba(196, 98, 45, 0.08);
  color: var(--link);
  text-decoration: none;
}

/* entry cover ----------------------------------------------- */

.entry-cover {
  flex-shrink: 0;
  border-radius: var(--radius-sm);
  overflow: hidden;
  background: var(--bg);
}

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

/* entry card ------------------------------------------------ */

.entry-card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  transition: transform 0.18s, box-shadow 0.18s, border-color 0.18s;
}

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

.entry-link {
  display: block;
  text-decoration: none;
  color: inherit;
}

.entry-link:hover {
  text-decoration: none;
  color: inherit;
}

.entry-card .entry-cover {
  width: 100%;
  aspect-ratio: 3 / 4;
  border-radius: 0;
}

.entry-card .entry-name {
  display: block;
  font-size: 14px;
  font-weight: 600;
  color: var(--text);
  padding: 10px 12px 4px;
  line-height: 1.4;
}

.entry-card .entry-meta {
  display: block;
  font-size: 12px;
  color: var(--text-soft);
  padding: 0 12px 12px;
}

/* batch ----------------------------------------------------- */

.batch-list {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.batch-item {
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 12px;
  align-items: center;
  padding: 11px 0;
  border-bottom: 1px solid var(--line);
  font-size: 13px;
}

.batch-item:last-child {
  border-bottom: none;
}

.batch-no {
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 600;
  color: var(--batch);
  background: rgba(140, 106, 63, 0.10);
  padding: 2px 8px;
  border-radius: var(--radius-sm);
  white-space: nowrap;
}

.batch-scope {
  color: var(--text);
  font-weight: 500;
  min-width: 0;
}

.batch-change {
  color: var(--text-soft);
  font-size: 12px;
  text-align: right;
  white-space: nowrap;
}

.aside-more {
  display: inline-block;
  margin-top: 16px;
  font-size: 13px;
  font-weight: 500;
  color: var(--accent);
}

/* field list ------------------------------------------------ */

.field-list {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.field-row {
  display: grid;
  grid-template-columns: 100px 1fr;
  gap: 16px;
  padding: 12px 0;
  border-bottom: 1px solid var(--line);
}

.field-row:last-child {
  border-bottom: none;
}

.field-row .field-name {
  font-size: 13px;
  font-weight: 600;
  color: var(--batch);
  font-family: var(--font-mono);
}

.field-row .field-desc {
  font-size: 13px;
  color: var(--text-soft);
  line-height: 1.7;
  margin: 0;
  min-width: 0;
}

/* rank list ------------------------------------------------- */

.rank-list {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.rank-item {
  display: grid;
  grid-template-columns: 36px 1fr auto;
  gap: 12px;
  align-items: center;
  padding: 12px 0;
  border-bottom: 1px solid var(--line);
}

.rank-item:last-child {
  border-bottom: none;
}

.rank-no {
  font-family: var(--font-mono);
  font-size: 14px;
  font-weight: 700;
  color: var(--accent);
  text-align: center;
}

.rank-name {
  font-size: 14px;
  font-weight: 500;
  color: var(--text);
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.rank-dir {
  font-size: 12px;
  color: var(--text-soft);
  white-space: nowrap;
}

/* steps ----------------------------------------------------- */

.step-list {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.step-item {
  display: grid;
  grid-template-columns: 40px 1fr;
  gap: 16px;
  align-items: start;
}

.step-no,
.step-num {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--accent);
  color: #FFFFFF;
  font-family: var(--font-mono);
  font-size: 14px;
  font-weight: 700;
}

.step-name {
  font-size: 16px;
  font-weight: 600;
  color: var(--text);
  margin: 0 0 4px;
}

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

.step-link {
  display: inline-block;
  margin-top: 6px;
  font-size: 13px;
  font-weight: 500;
  color: var(--accent);
}

/* correction / feedback ------------------------------------- */

.correction-item,
.feedback-item {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  margin-bottom: 10px;
  background: var(--card);
  overflow: hidden;
}

.correction-item summary,
.feedback-summary {
  padding: 12px 16px;
  font-size: 14px;
  font-weight: 600;
  color: var(--text);
  cursor: pointer;
  list-style: none;
  position: relative;
  padding-right: 40px;
}

.correction-item summary::-webkit-details-marker,
.feedback-summary::-webkit-details-marker {
  display: none;
}

.correction-item summary::after,
.feedback-summary::after {
  content: "+";
  position: absolute;
  right: 16px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 18px;
  font-weight: 400;
  color: var(--accent);
  line-height: 1;
}

.correction-item[open] summary::after,
.feedback-item[open] .feedback-summary::after {
  content: "−";
}

.correction-item p,
.feedback-body {
  padding: 0 16px 14px;
  font-size: 13px;
  color: var(--text-soft);
  line-height: 1.75;
  margin: 0;
  border-top: 1px solid var(--line);
  padding-top: 12px;
}

/* table ----------------------------------------------------- */

.table-scroll {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--card);
}

.compare-table,
.ranking-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
  min-width: 640px;
}

.table-caption {
  caption-side: top;
  text-align: left;
  padding: 12px 16px;
  font-size: 13px;
  color: var(--text-soft);
  border-bottom: 1px solid var(--line);
}

.compare-table th,
.compare-table td,
.ranking-table th,
.ranking-table td {
  padding: 11px 14px;
  text-align: left;
  border-bottom: 1px solid var(--line);
  vertical-align: top;
}

.compare-table thead th,
.ranking-table thead th {
  background: var(--bg);
  font-weight: 600;
  color: var(--text);
  font-size: 13px;
  white-space: nowrap;
  position: sticky;
  top: 0;
  z-index: 2;
}

.compare-table tbody th {
  font-weight: 600;
  color: var(--batch);
  background: var(--card);
  white-space: nowrap;
}

.compare-table tbody tr:last-child th,
.compare-table tbody tr:last-child td,
.ranking-table tbody tr:last-child td {
  border-bottom: none;
}

.ranking-table tbody tr:hover {
  background: rgba(196, 98, 45, 0.04);
}

.ranking-table .cell-rank {
  font-family: var(--font-mono);
  font-weight: 700;
  color: var(--accent);
  text-align: center;
  width: 64px;
}

.ranking-table .cell-name {
  font-weight: 500;
  color: var(--text);
  min-width: 160px;
}

.ranking-table .cell-direction,
.ranking-table .cell-status,
.ranking-table .cell-completeness {
  color: var(--text-soft);
  white-space: nowrap;
}

.sort-button {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  background: none;
  border: none;
  padding: 0;
  font-size: 13px;
  font-weight: 600;
  color: var(--text);
  cursor: pointer;
}

.sort-button:hover {
  color: var(--accent);
}

.sort-mark {
  font-size: 11px;
  color: var(--text-soft);
  font-family: var(--font-mono);
}

.sortable[aria-sort="ascending"] .sort-mark,
.sortable[aria-sort="descending"] .sort-mark {
  color: var(--accent);
}

.ranking-note {
  margin-top: 12px;
  font-size: 13px;
  color: var(--text-soft);
}

/* site index ------------------------------------------------ */

.index-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 16px;
}

.index-col,
.index-item {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 16px;
  transition: border-color 0.15s, box-shadow 0.15s;
}

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

.index-name {
  font-size: 15px;
  font-weight: 600;
  margin: 0 0 6px;
}

.index-name a,
.index-link {
  color: var(--text);
  text-decoration: none;
}

.index-name a:hover,
.index-link:hover {
  color: var(--accent);
  text-decoration: none;
}

.index-desc {
  font-size: 13px;
  color: var(--text-soft);
  line-height: 1.65;
  margin: 0;
}

/* ============================================================
   pages — index
   ============================================================ */

.hero {
  padding: 40px 0 48px;
  border-bottom: 1px solid var(--line);
  margin-bottom: 48px;
}

.hero-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: start;
}

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

.hero-eyebrow {
  font-size: 13px;
  font-weight: 600;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 1px;
  margin: 0 0 12px;
}

.hero-title {
  font-size: 34px;
  font-weight: 700;
  line-height: 1.25;
  color: var(--text);
  margin: 0 0 16px;
}

.hero-lead {
  font-size: 15px;
  color: var(--text-soft);
  line-height: 1.75;
  max-width: 540px;
  margin: 0 0 20px;
}

.hero-points {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 24px;
}

.hero-points li {
  position: relative;
  padding-left: 20px;
  font-size: 14px;
  color: var(--text-soft);
  line-height: 1.7;
}

.hero-points li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 10px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
}

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

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

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

.hero-figure img {
  width: 100%;
  height: 260px;
  object-fit: cover;
  display: block;
}

.scene-entries {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 20px;
}

.scene-entries-title {
  font-size: 15px;
  font-weight: 600;
  color: var(--text);
  margin: 0 0 14px;
}

.scene-list {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}

.scene-item {
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  padding: 12px;
  transition: border-color 0.15s, background 0.15s;
}

.scene-item:hover {
  border-color: var(--accent);
  background: rgba(196, 98, 45, 0.03);
}

.scene-name {
  display: block;
  font-size: 14px;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 4px;
}

.scene-desc {
  display: block;
  font-size: 12px;
  color: var(--text-soft);
  line-height: 1.6;
  margin-bottom: 6px;
}

.scene-link {
  font-size: 12px;
  font-weight: 500;
  color: var(--accent);
}

/* directions ------------------------------------------------ */

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

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

.direction-card:hover {
  border-color: var(--accent);
  box-shadow: var(--shadow);
}

.direction-name {
  font-size: 17px;
  font-weight: 600;
  color: var(--text);
  margin: 0;
}

.direction-scope {
  font-size: 13px;
  color: var(--text-soft);
  line-height: 1.7;
  margin: 0;
}

.direction-samples {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 0;
  margin: 0;
  flex: 1;
}

.direction-samples li {
  font-size: 13px;
  color: var(--text);
  padding-left: 14px;
  position: relative;
  line-height: 1.6;
}

.direction-samples li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 9px;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--batch);
}

.direction-link {
  font-size: 13px;
  font-weight: 600;
  color: var(--accent);
  margin-top: auto;
}

/* split sections -------------------------------------------- */

.split-layout {
  display: grid;
  grid-template-columns: 1.6fr 1fr;
  gap: var(--gap);
  align-items: start;
}

.split-main,
.split-aside {
  min-width: 0;
}

.split-subtitle {
  font-size: 15px;
  font-weight: 600;
  color: var(--text);
  margin: 0 0 16px;
}

.entry-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
}

.split-aside {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 20px;
}

/* path layout ----------------------------------------------- */

.path-layout {
  display: grid;
  grid-template-columns: 1.6fr 1fr;
  gap: var(--gap);
  align-items: start;
}

.path-steps,
.path-aside {
  min-width: 0;
}

.path-aside {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 20px;
}

.correction-lead {
  font-size: 13px;
  color: var(--text-soft);
  line-height: 1.7;
  margin: 0 0 14px;
}

/* ============================================================
   pages — inner shared
   ============================================================ */

.page-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--gap);
  align-items: start;
}

.page-layout.sidebar-left {
  grid-template-columns: 240px 1fr;
}

.page-layout.sidebar-left .category-content,
.page-layout.sidebar-left .field-detail {
  min-width: 0;
}

/* ============================================================
   pages — category
   ============================================================ */

.category-aside {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 20px;
  position: sticky;
  top: 84px;
}

.aside-title {
  font-size: 15px;
  font-weight: 600;
  color: var(--text);
  margin: 0 0 8px;
}

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

.aside-nav-list {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.aside-nav-list a {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 9px 10px;
  border-radius: var(--radius-sm);
  font-size: 13px;
  color: var(--text);
  text-decoration: none;
  transition: background 0.15s, color 0.15s;
}

.aside-nav-list a:hover {
  background: rgba(196, 98, 45, 0.06);
  color: var(--accent);
  text-decoration: none;
}

.aside-count {
  font-size: 12px;
  color: var(--text-soft);
  font-family: var(--font-mono);
}

.aside-links {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-top: 16px;
  padding-top: 14px;
  border-top: 1px solid var(--line);
}

.aside-link {
  font-size: 13px;
  font-weight: 500;
  color: var(--accent);
}

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

.direction-block {
  margin-bottom: 40px;
}

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

.direction-head {
  margin-bottom: 16px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--line);
}

.direction-title {
  font-size: 20px;
  font-weight: 600;
  color: var(--text);
  margin: 0 0 6px;
}

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

.entry-row {
  display: grid;
  grid-template-columns: 72px 1fr auto;
  gap: 16px;
  align-items: center;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 12px;
  transition: border-color 0.15s, box-shadow 0.15s;
}

.entry-row:hover {
  border-color: var(--accent);
  box-shadow: var(--shadow);
}

.entry-row .entry-cover {
  width: 72px;
  height: 96px;
}

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

.entry-body .entry-name {
  display: block;
  font-size: 15px;
  font-weight: 600;
  color: var(--text);
  margin: 0 0 4px;
}

.entry-body .entry-summary {
  font-size: 13px;
  color: var(--text-soft);
  line-height: 1.7;
  margin: 0 0 4px;
}

.entry-body .entry-meta {
  font-size: 12px;
  color: var(--text-soft);
}

.entry-state {
  font-size: 12px;
  font-weight: 500;
  color: var(--text-soft);
  background: var(--bg);
  border-radius: var(--radius-sm);
  padding: 3px 10px;
  white-space: nowrap;
  align-self: start;
}

.entry-state-new {
  color: var(--accent);
  background: rgba(196, 98, 45, 0.10);
}

.field-compare {
  margin-top: 8px;
}

/* ============================================================
   pages — updates
   ============================================================ */

.batch-block {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 20px;
  margin-bottom: 16px;
}

.batch-head {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 10px;
  flex-wrap: wrap;
}

.batch-meta {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}

.batch-count {
  font-size: 12px;
  color: var(--text-soft);
  font-family: var(--font-mono);
}

.batch-note {
  font-size: 13px;
  color: var(--text-soft);
  line-height: 1.7;
  margin: 0 0 14px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--line);
}

.batch-block .batch-list {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.batch-row {
  display: grid;
  grid-template-columns: 1fr auto auto;
  gap: 12px;
  align-items: center;
  padding: 10px 0;
  border-bottom: 1px solid var(--line);
  font-size: 13px;
}

.batch-row:last-child {
  border-bottom: none;
}

.batch-name {
  font-weight: 500;
  color: var(--text);
  min-width: 0;
}

.batch-type {
  font-size: 12px;
  color: var(--accent);
  background: rgba(196, 98, 45, 0.08);
  padding: 2px 8px;
  border-radius: var(--radius-sm);
  white-space: nowrap;
}

.batch-field {
  font-size: 12px;
  color: var(--text-soft);
  font-family: var(--font-mono);
  white-space: nowrap;
}

.change-figure {
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--line);
  background: var(--card);
  margin-bottom: 20px;
}

.change-figure img {
  width: 100%;
  height: 220px;
  object-fit: cover;
  display: block;
}

.change-figure figcaption {
  padding: 10px 16px;
  font-size: 12px;
  color: var(--text-soft);
  border-top: 1px solid var(--line);
}

.change-fields .field-compare {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  margin-top: 0;
}

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

.compare-title {
  font-size: 15px;
  font-weight: 600;
  color: var(--text);
  margin: 0 0 12px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--line);
}

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

.compare-item {
  font-size: 13px;
  color: var(--text-soft);
  line-height: 1.7;
  padding-left: 14px;
  position: relative;
}

.compare-item::before {
  content: "";
  position: absolute;
  left: 0;
  top: 9px;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--accent);
}

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

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

.group-title {
  font-size: 15px;
  font-weight: 600;
  color: var(--text);
  margin: 0 0 12px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--line);
}

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

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

.group-batch {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 600;
  color: var(--batch);
  background: rgba(140, 106, 63, 0.10);
  padding: 2px 6px;
  border-radius: var(--radius-sm);
  white-space: nowrap;
}

.group-name {
  color: var(--text-soft);
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

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

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

.usage-title {
  font-size: 15px;
  font-weight: 600;
  color: var(--text);
  margin: 0 0 8px;
}

.usage-text {
  font-size: 13px;
  color: var(--text-soft);
  line-height: 1.7;
  margin: 0;
}

.usage-more {
  margin-top: 16px;
  font-size: 13px;
  color: var(--text-soft);
}

.usage-more a {
  margin-right: 12px;
}

.update-usage .usage-more a {
  font-weight: 500;
}

/* ============================================================
   pages — ranking
   ============================================================ */

.ranking-figure {
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--line);
  background: var(--card);
  margin-bottom: 20px;
}

.ranking-figure img {
  width: 100%;
  height: 240px;
  object-fit: cover;
  display: block;
}

.figure-caption {
  padding: 10px 16px;
  font-size: 12px;
  color: var(--text-soft);
  border-top: 1px solid var(--line);
}

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

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

.scope-name {
  font-size: 14px;
  font-weight: 600;
  color: var(--text);
  margin: 0 0 8px;
}

.scope-text {
  font-size: 13px;
  color: var(--text-soft);
  line-height: 1.7;
  margin: 0;
}

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

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

.cross-name {
  font-size: 15px;
  font-weight: 600;
  margin: 0 0 6px;
}

.cross-name a {
  color: var(--text);
  text-decoration: none;
}

.cross-name a:hover {
  color: var(--accent);
  text-decoration: none;
}

.cross-range {
  font-size: 12px;
  color: var(--batch);
  font-family: var(--font-mono);
  margin: 0 0 10px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--line);
}

.cross-list {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.cross-item {
  font-size: 13px;
  color: var(--text-soft);
  padding-left: 14px;
  position: relative;
  line-height: 1.6;
}

.cross-item::before {
  content: "";
  position: absolute;
  left: 0;
  top: 9px;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--accent);
}

.cross-note {
  margin-top: 16px;
  font-size: 13px;
  color: var(--text-soft);
}

.cross-note a {
  margin-right: 12px;
  font-weight: 500;
}

/* ============================================================
   pages — guide
   ============================================================ */

.guide-fields,
.guide-steps,
.guide-feedback {
  margin-bottom: 48px;
}

.guide-fields .section-lead,
.guide-steps .section-lead,
.guide-feedback .section-lead {
  margin-bottom: 24px;
}

.field-index {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 20px;
  position: sticky;
  top: 84px;
}

.field-index-title {
  font-size: 15px;
  font-weight: 600;
  color: var(--text);
  margin: 0 0 12px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--line);
}

.field-index-list {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.field-index-list a {
  display: block;
  padding: 8px 10px;
  border-radius: var(--radius-sm);
  font-size: 13px;
  color: var(--text);
  text-decoration: none;
  transition: background 0.15s, color 0.15s;
}

.field-index-list a:hover {
  background: rgba(196, 98, 45, 0.06);
  color: var(--accent);
  text-decoration: none;
}

.field-detail {
  min-width: 0;
}

.guide-figure {
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--line);
  background: var(--card);
  margin-bottom: 24px;
}

.guide-figure img {
  width: 100%;
  height: 260px;
  object-fit: cover;
  display: block;
}

.guide-figure figcaption {
  padding: 10px 16px;
  font-size: 12px;
  color: var(--text-soft);
  border-top: 1px solid var(--line);
}

.field-block {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 20px;
  margin-bottom: 14px;
}

.field-block .field-name {
  font-size: 16px;
  font-weight: 600;
  color: var(--text);
  margin: 0 0 10px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--line);
}

.field-mean {
  font-size: 14px;
  color: var(--text);
  line-height: 1.75;
  margin: 0 0 8px;
}

.field-sample {
  font-size: 13px;
  color: var(--text-soft);
  line-height: 1.7;
  margin: 0 0 8px;
  padding: 8px 12px;
  background: var(--bg);
  border-radius: var(--radius-sm);
  font-family: var(--font-mono);
}

.field-misread {
  font-size: 13px;
  color: var(--text-soft);
  line-height: 1.7;
  margin: 0;
  padding-left: 14px;
  position: relative;
}

.field-misread::before {
  content: "";
  position: absolute;
  left: 0;
  top: 9px;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--batch);
}

.guide-steps .step-list {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.guide-steps .step-item {
  display: flex;
  flex-direction: column;
  gap: 12px;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 20px;
}

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

/* ============================================================
   pages — 404
   ============================================================ */

.error-main {
  max-width: 720px;
  margin: 0 auto;
  padding: 64px 24px;
}

.error-panel {
  text-align: center;
  padding: 48px 24px;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  margin-bottom: 32px;
}

.error-code {
  font-family: var(--font-mono);
  font-size: 48px;
  font-weight: 700;
  color: var(--accent);
  margin: 0 0 12px;
  line-height: 1;
}

.error-panel h1 {
  font-size: 24px;
  font-weight: 700;
  color: var(--text);
  margin: 0 0 12px;
}

.error-text {
  font-size: 14px;
  color: var(--text-soft);
  line-height: 1.75;
  margin: 0 0 8px;
}

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

.error-links {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 24px;
}

.error-links h2 {
  font-size: 16px;
  font-weight: 600;
  color: var(--text);
  margin: 0 0 14px;
}

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

.error-link-list a {
  font-size: 14px;
  font-weight: 500;
  color: var(--accent);
}

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

@media (max-width: 900px) {
  .header-inner {
    height: 56px;
    gap: 12px;
  }

  .nav-toggle {
    display: flex;
  }

  .site-nav {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--card);
    border-bottom: 1px solid var(--line);
    box-shadow: var(--shadow);
    padding: 8px 16px 16px;
    margin-left: 0;
  }

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

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

  .nav-link {
    min-height: 44px;
    padding: 10px 14px;
  }

  .hero-inner {
    grid-template-columns: 1fr;
    gap: 28px;
  }

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

  .hero-figure img {
    height: 220px;
  }

  .direction-grid,
  .group-grid,
  .scope-grid,
  .cross-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .split-layout,
  .path-layout {
    grid-template-columns: 1fr;
    gap: 24px;
  }

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

  .page-layout.sidebar-left {
    grid-template-columns: 1fr;
  }

  .category-aside,
  .field-index {
    position: static;
  }

  .category-aside .aside-nav-list {
    flex-direction: row;
    flex-wrap: wrap;
    gap: 8px;
  }

  .category-aside .aside-nav-list a {
    border: 1px solid var(--line);
    border-radius: var(--radius-sm);
    padding: 8px 12px;
    min-height: 44px;
  }

  .change-fields .field-compare {
    grid-template-columns: 1fr;
  }

  .usage-grid,
  .guide-steps .step-list {
    grid-template-columns: 1fr;
  }

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

  .footer-inner {
    grid-template-columns: 1fr 1fr;
    gap: 24px;
  }

  .footer-brand {
    grid-column: 1 / -1;
  }

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

@media (max-width: 600px) {
  .home-main,
  .inner-main {
    padding: 0 16px 48px;
  }

  .header-inner {
    padding: 0 16px;
  }

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

  .footer-inner,
  .footer-bottom {
    padding-left: 16px;
    padding-right: 16px;
  }

  .hero {
    padding: 24px 0 32px;
    margin-bottom: 32px;
  }

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

  .hero-figure img {
    height: 180px;
  }

  .scene-list {
    grid-template-columns: 1fr;
  }

  .direction-grid,
  .group-grid,
  .scope-grid,
  .cross-grid,
  .index-grid {
    grid-template-columns: 1fr;
  }

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

  .entry-row {
    grid-template-columns: 60px 1fr;
    gap: 12px;
  }

  .entry-row .entry-cover {
    width: 60px;
    height: 80px;
  }

  .entry-state {
    grid-column: 2;
    justify-self: start;
    margin-top: 4px;
  }

  .batch-item {
    grid-template-columns: auto 1fr;
    gap: 8px;
  }

  .batch-change {
    grid-column: 2;
    text-align: left;
  }

  .batch-row {
    grid-template-columns: 1fr auto;
    gap: 8px;
  }

  .batch-field {
    grid-column: 1 / -1;
  }

  .field-row {
    grid-template-columns: 1fr;
    gap: 4px;
  }

  .rank-item {
    grid-template-columns: 32px 1fr;
    gap: 8px;
  }

  .rank-dir {
    grid-column: 2;
  }

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

  .page-header {
    padding: 16px 0 20px;
    margin-bottom: 24px;
  }

  .section {
    margin-bottom: 32px;
  }

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

  .step-item {
    grid-template-columns: 32px 1fr;
    gap: 12px;
  }

  .step-no,
  .step-num {
    width: 32px;
    height: 32px;
    font-size: 13px;
  }

  .change-figure img,
  .ranking-figure img,
  .guide-figure img {
    height: 180px;
  }

  .footer-inner {
    grid-template-columns: 1fr;
  }

  .footer-bottom {
    flex-direction: column;
  }

  .error-main {
    padding: 32px 16px;
  }

  .error-panel {
    padding: 32px 16px;
  }

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