:root {
  --ink: #1b2a41;
  --ink-soft: #39424e;
  --teal: #2f9e8f;
  --teal-dark: #237a6e;
  --amber: #e2833a;
  --mist: #f5f6f8;
  --line: #dfe3e9;
  --line-strong: #c6ccd6;
  --paper: #ffffff;
  --radius: 6px;
  --shell: 1120px;
  --shadow: 0 1px 2px rgba(27, 42, 65, 0.06);
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
    "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
}

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

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

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

body.site-body {
  margin: 0;
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.75;
  color: var(--ink-soft);
  background-color: var(--mist);
  overflow-wrap: break-word;
}

h1,
h2,
h3,
h4 {
  margin: 0;
  color: var(--ink);
  font-weight: 600;
  line-height: 1.3;
}

p {
  margin: 0;
}

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

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

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

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

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

figure {
  margin: 0;
}

figcaption {
  margin-top: 8px;
  font-size: 13px;
  line-height: 1.6;
  color: #6b7480;
}

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

/* ============================================================
   layout — shell / header / nav / footer
   ============================================================ */

.site-header {
  position: sticky;
  top: 0;
  z-index: 30;
  background-color: var(--ink);
  border-bottom: 1px solid #24354f;
}

.header-inner {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px 24px;
  max-width: var(--shell);
  margin: 0 auto;
  padding: 12px 24px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  flex: 0 0 auto;
  min-height: 44px;
  color: #ffffff;
}

.brand:hover {
  color: #ffffff;
}

.brand-mark {
  width: 22px;
  height: 22px;
  border-radius: 4px;
  background-color: var(--teal);
  box-shadow: inset 0 0 0 3px var(--ink);
}

.brand-name {
  font-size: 19px;
  font-weight: 600;
  letter-spacing: 0;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 4px;
  width: 44px;
  height: 44px;
  padding: 0 10px;
  border: 1px solid #3a4c68;
  border-radius: var(--radius);
  background-color: transparent;
  cursor: pointer;
}

.nav-toggle-bar {
  display: block;
  height: 2px;
  background-color: #e6ebf2;
  border-radius: 1px;
}

.site-nav {
  flex: 1 1 auto;
}

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

.nav-list li {
  display: block;
}

.nav-list a {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 0 12px;
  font-size: 15px;
  color: #cfd7e3;
  border-bottom: 2px solid transparent;
}

.nav-list a:hover {
  color: #ffffff;
  border-bottom-color: #3a4c68;
}

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

.header-note {
  flex: 0 0 auto;
  font-size: 13px;
  color: #8f9db3;
}

.header-note a {
  color: #8f9db3;
}

.header-note a:hover {
  color: #ffffff;
}

.site-main {
  display: block;
}

.home-main {
  max-width: 100%;
}

.inner-main {
  max-width: var(--shell);
  margin: 0 auto;
  padding: 0 24px 56px;
}

.breadcrumb {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 6px;
  padding: 16px 0 4px;
  font-size: 14px;
  color: #6b7480;
}

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

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

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

.breadcrumb-current {
  color: #6b7480;
}

.page-header {
  padding: 12px 0 26px;
  border-bottom: 1px solid var(--line);
}

.page-title {
  font-size: 34px;
  font-weight: 600;
  line-height: 1.3;
  color: var(--ink);
}

.page-description {
  max-width: 780px;
  margin-top: 12px;
  font-size: 16px;
  color: var(--ink-soft);
}

.page-description a {
  color: var(--teal-dark);
  border-bottom: 1px solid rgba(47, 158, 143, 0.4);
}

.page-description a:hover {
  color: var(--teal);
  border-bottom-color: var(--teal);
}

.site-footer {
  background-color: var(--ink);
  color: #b9c3d2;
}

.footer-inner {
  display: grid;
  grid-template-columns: minmax(220px, 1.4fr) repeat(3, minmax(150px, 1fr));
  gap: 32px;
  max-width: var(--shell);
  margin: 0 auto;
  padding: 40px 24px 28px;
}

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

.footer-name {
  font-size: 18px;
  font-weight: 600;
  color: #ffffff;
}

.footer-desc {
  margin-top: 10px;
  font-size: 14px;
  line-height: 1.7;
  color: #9aa6b8;
}

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

.footer-title {
  margin-bottom: 12px;
  font-size: 15px;
  font-weight: 600;
  color: #ffffff;
}

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

.footer-list a {
  display: inline-flex;
  align-items: center;
  min-height: 32px;
  font-size: 14px;
  color: #b9c3d2;
}

.footer-list a:hover {
  color: #ffffff;
}

.footer-bottom {
  border-top: 1px solid #2b3d59;
}

.footer-bottom p {
  max-width: var(--shell);
  margin: 0 auto;
  padding: 6px 24px;
  font-size: 13px;
  color: #8f9db3;
}

.footer-bottom p:first-child {
  padding-top: 18px;
}

.footer-copy {
  padding-bottom: 20px !important;
}

/* ============================================================
   components — shared bits
   ============================================================ */

.tag {
  display: inline-flex;
  align-items: center;
  padding: 1px 8px;
  font-size: 13px;
  line-height: 1.6;
  color: var(--ink);
  background-color: #eef1f5;
  border-radius: 4px;
  white-space: nowrap;
}

.tag-genre {
  color: var(--teal-dark);
  background-color: #e6f4f2;
}

.status {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-size: 13px;
  white-space: nowrap;
}

.status::before {
  content: "";
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background-color: currentColor;
}

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

.status-done,
.status-finished {
  color: #7a838f;
}

.text-link {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  font-size: 15px;
  color: var(--teal-dark);
  border-bottom: 1px solid rgba(47, 158, 143, 0.35);
}

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

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 0 22px;
  font-size: 15px;
  font-weight: 600;
  border-radius: var(--radius);
  border: 1px solid transparent;
}

.btn-primary {
  color: #ffffff;
  background-color: var(--teal);
}

.btn-primary:hover {
  color: #ffffff;
  background-color: var(--teal-dark);
}

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

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

.section-head {
  max-width: 820px;
  margin-bottom: 22px;
}

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

.section-desc,
.section-note {
  margin-top: 8px;
  font-size: 15px;
  color: #5c6672;
}

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

.section-more {
  margin-top: 18px;
}

.section-media {
  margin-top: 26px;
}

.section-media img {
  width: 100%;
  border-radius: var(--radius);
  border: 1px solid var(--line);
}

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

.site-fact-bar {
  padding: 8px 24px;
  font-size: 13px;
  color: #4c5765;
  background-color: #e9edf2;
  border-bottom: 1px solid var(--line);
  text-align: center;
}

.home-section {
  max-width: var(--shell);
  margin: 0 auto;
  padding: 44px 24px 8px;
}

.hero-section {
  display: grid;
  grid-template-columns: minmax(0, 5fr) minmax(0, 6fr);
  gap: 40px;
  align-items: center;
  max-width: var(--shell);
  margin: 0 auto;
  padding: 40px 24px 12px;
}

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

.hero-figure img {
  width: 100%;
  border-radius: var(--radius);
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
}

.hero-caption {
  font-size: 13px;
}

.hero-issue {
  display: inline-block;
  margin-top: 14px;
  padding: 3px 10px;
  font-size: 13px;
  color: var(--amber);
  background-color: #fdf1e6;
  border-radius: 4px;
}

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

.hero-lead {
  margin-top: 14px;
  font-size: 16px;
  color: var(--ink-soft);
}

.hero-points {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-top: 18px;
}

.hero-points li {
  position: relative;
  padding-left: 18px;
  font-size: 15px;
  color: #4c5765;
}

.hero-points li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 10px;
  width: 8px;
  height: 2px;
  background-color: var(--teal);
}

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

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

.category-block {
  display: flex;
  flex-direction: column;
  padding: 18px;
  background-color: var(--paper);
  border: 1px solid var(--line);
  border-top: 3px solid var(--teal);
  border-radius: var(--radius);
}

.category-name {
  font-size: 18px;
}

.category-tags {
  margin-top: 6px;
  font-size: 13px;
  color: #6b7480;
}

.category-note {
  margin-top: 10px;
  font-size: 14px;
  color: var(--ink-soft);
}

.category-works {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-top: 14px;
  padding-top: 14px;
  border-top: 1px solid var(--line);
}

.category-works li {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}

.category-works .work-name {
  font-size: 15px;
  color: var(--ink);
}

.block-link {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  margin-top: auto;
  padding-top: 12px;
  font-size: 14px;
  color: var(--teal-dark);
}

.block-link:hover {
  color: var(--teal);
}

.update-list {
  border-top: 1px solid var(--line);
}

.update-row {
  display: grid;
  grid-template-columns: 104px minmax(0, 1.6fr) 96px 96px 92px;
  align-items: center;
  gap: 16px;
  padding: 13px 4px;
  border-bottom: 1px solid var(--line);
}

.update-row:hover {
  background-color: #eef1f5;
}

.update-date {
  font-size: 14px;
  color: #6b7480;
}

.update-row .work-name {
  font-size: 16px;
  color: var(--ink);
}

.chapter {
  font-size: 14px;
  color: var(--ink-soft);
}

.ranking-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.55fr) minmax(0, 1fr);
  gap: 36px;
  align-items: start;
}

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

.rank-list {
  border-top: 1px solid var(--line);
}

.rank-row {
  display: grid;
  grid-template-columns: 44px minmax(0, 1.3fr) 92px minmax(0, 1fr);
  align-items: center;
  gap: 14px;
  padding: 12px 4px;
  border-bottom: 1px solid var(--line);
}

.rank-row:hover {
  background-color: #eef1f5;
}

.rank-no {
  font-size: 17px;
  font-weight: 600;
  color: var(--amber);
}

.rank-row .work-name {
  font-size: 16px;
  color: var(--ink);
}

.rank-note {
  font-size: 14px;
  color: #6b7480;
}

.ranking-aside {
  padding: 20px;
  background-color: var(--paper);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.ranking-aside h3 {
  font-size: 18px;
}

.ranking-aside p {
  margin-top: 10px;
  font-size: 15px;
}

.basis-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-top: 14px;
}

.basis-list li {
  position: relative;
  padding-left: 18px;
  font-size: 14px;
  color: var(--ink-soft);
}

.basis-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 10px;
  width: 8px;
  height: 2px;
  background-color: var(--amber);
}

.ranking-aside .text-link {
  margin-top: 14px;
}

.reading-layout {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 32px;
  align-items: start;
}

.reading-col {
  min-width: 0;
  padding: 22px;
  background-color: var(--paper);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.reading-col h3 {
  font-size: 18px;
}

.reading-col p {
  margin-top: 10px;
  font-size: 15px;
}

.reading-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-top: 14px;
}

.reading-list li {
  position: relative;
  padding-left: 18px;
  font-size: 15px;
  color: var(--ink-soft);
}

.reading-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 11px;
  width: 8px;
  height: 2px;
  background-color: var(--teal);
}

.reading-col .text-link {
  margin-top: 14px;
}

.section-index {
  padding-bottom: 48px;
}

.index-grid {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 16px;
}

.index-item {
  display: flex;
  flex-direction: column;
  gap: 6px;
  min-height: 88px;
  padding: 16px;
  background-color: var(--paper);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.index-item:hover {
  border-color: var(--teal);
  background-color: #f0f7f6;
}

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

.index-desc {
  font-size: 13px;
  color: #6b7480;
}

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

.category-topics,
.category-catalog,
.category-rules,
.updates-section,
.record-rule,
.followup-advice,
.updates-crosslinks,
.ranking-section,
.ranking-basis-section,
.ranking-combo-section,
.guide-section {
  padding: 34px 0 6px;
}

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

.topic-tag {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 14px 16px;
  background-color: var(--paper);
  border: 1px solid var(--line);
  border-left: 3px solid var(--teal);
  border-radius: var(--radius);
}

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

.tag-note {
  font-size: 13px;
  color: #6b7480;
}

.topic-block {
  padding: 22px 0 8px;
  border-top: 1px solid var(--line);
}

.topic-block:first-of-type {
  border-top-width: 2px;
  border-top-color: var(--ink);
}

.topic-block-head {
  margin-bottom: 16px;
}

.topic-name {
  font-size: 20px;
}

.topic-intro {
  max-width: 760px;
  margin-top: 6px;
  font-size: 15px;
  color: #5c6672;
}

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

.work-card {
  display: flex;
  flex-direction: column;
  min-width: 0;
  background-color: var(--paper);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
}

.work-card:hover {
  border-color: var(--line-strong);
  box-shadow: var(--shadow);
}

.work-cover {
  width: 100%;
  aspect-ratio: 3 / 2;
  overflow: hidden;
  background-color: #e9edf2;
}

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

.work-meta {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 14px 16px 18px;
}

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

.work-tags {
  font-size: 13px;
  color: var(--teal-dark);
}

.work-status {
  font-size: 13px;
}

.work-summary {
  font-size: 14px;
  color: var(--ink-soft);
}

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

.rule-item {
  padding: 18px;
  background-color: var(--paper);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

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

.rule-item p {
  margin-top: 8px;
  font-size: 15px;
}

.rules-note {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 20px;
  margin-top: 20px;
  padding-top: 16px;
  border-top: 1px solid var(--line);
  font-size: 14px;
}

.rules-note a {
  color: var(--teal-dark);
  border-bottom: 1px solid rgba(47, 158, 143, 0.35);
}

.rules-note a:hover {
  color: var(--teal);
  border-bottom-color: var(--teal);
}

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

.updates-media img {
  width: 100%;
  border-radius: var(--radius);
  border: 1px solid var(--line);
}

.updates-timeline {
  margin-top: 26px;
  border-left: 2px solid var(--line);
}

.updates-item {
  display: grid;
  grid-template-columns: 116px minmax(0, 1fr);
  gap: 20px;
  padding: 0 0 24px 22px;
  position: relative;
}

.updates-item::before {
  content: "";
  position: absolute;
  left: -7px;
  top: 8px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background-color: var(--paper);
  border: 2px solid var(--teal);
}

.updates-date {
  font-size: 14px;
  color: #6b7480;
  padding-top: 4px;
}

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

.updates-name {
  font-size: 18px;
}

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

.updates-name a:hover {
  color: var(--teal);
  border-bottom-color: var(--teal);
}

.updates-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 12px;
  margin-top: 8px;
  font-size: 14px;
}

.updates-chapter {
  color: var(--ink-soft);
}

.updates-note {
  margin-top: 8px;
  font-size: 14px;
  color: #6b7480;
}

.record-rule-body {
  max-width: 860px;
}

.record-rule-body p {
  font-size: 15px;
}

.record-rule-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin: 16px 0;
}

.record-rule-list li {
  position: relative;
  padding-left: 18px;
  font-size: 15px;
  color: var(--ink-soft);
}

.record-rule-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 11px;
  width: 8px;
  height: 2px;
  background-color: var(--teal);
}

.record-rule-list strong {
  margin-right: 4px;
}

.record-rule-body a {
  color: var(--teal-dark);
  border-bottom: 1px solid rgba(47, 158, 143, 0.35);
}

.record-rule-body a:hover {
  color: var(--teal);
  border-bottom-color: var(--teal);
}

.followup-columns {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 32px;
  align-items: start;
}

.followup-col {
  min-width: 0;
  padding: 22px;
  background-color: var(--paper);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.followup-col h3 {
  font-size: 18px;
}

.followup-col p {
  margin-top: 10px;
  font-size: 15px;
}

.followup-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-top: 14px;
}

.followup-list li {
  position: relative;
  padding-left: 18px;
  font-size: 15px;
  color: var(--ink-soft);
}

.followup-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 11px;
  width: 8px;
  height: 2px;
  background-color: var(--amber);
}

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

.crosslink-item {
  padding: 18px;
  background-color: var(--paper);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.crosslink-item h3 {
  font-size: 17px;
}

.crosslink-item h3 a {
  color: var(--ink);
  border-bottom: 1px solid transparent;
}

.crosslink-item h3 a:hover {
  color: var(--teal);
  border-bottom-color: var(--teal);
}

.crosslink-item p {
  margin-top: 8px;
  font-size: 14px;
  color: #5c6672;
}

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

.ranking-toolbar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin-bottom: 18px;
}

.ranking-select-label {
  font-size: 14px;
  color: #5c6672;
}

.ranking-select {
  min-height: 44px;
  padding: 0 12px;
  font-family: inherit;
  font-size: 15px;
  color: var(--ink);
  background-color: var(--paper);
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
}

.ranking-list {
  border-top: 2px solid var(--ink);
}

.ranking-item {
  display: grid;
  grid-template-columns: 56px minmax(0, 1fr);
  gap: 18px;
  padding: 18px 4px;
  border-bottom: 1px solid var(--line);
}

.ranking-item:hover {
  background-color: #eef1f5;
}

.rank-index {
  font-size: 24px;
  font-weight: 600;
  color: var(--amber);
  line-height: 1.2;
}

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

.rank-name {
  font-size: 18px;
}

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

.rank-name a:hover {
  color: var(--teal);
  border-bottom-color: var(--teal);
}

.rank-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 8px;
}

.rank-reason {
  margin-top: 8px;
  font-size: 14px;
  color: #5c6672;
}

.ranking-basis-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr);
  gap: 36px;
  align-items: start;
}

.basis-text,
.ranking-basis-aside {
  min-width: 0;
}

.basis-text h3 {
  font-size: 18px;
}

.basis-text p {
  margin-top: 10px;
  font-size: 15px;
}

.ranking-basis-aside {
  padding: 20px;
  background-color: var(--paper);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.ranking-basis-aside h3 {
  font-size: 17px;
}

.ranking-figure {
  margin-bottom: 26px;
}

.ranking-figure img {
  width: 100%;
  border-radius: var(--radius);
  border: 1px solid var(--line);
}

.ranking-combo-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 32px;
  align-items: start;
}

.combo-col {
  min-width: 0;
  padding: 22px;
  background-color: var(--paper);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.combo-col h3 {
  font-size: 18px;
}

.combo-col p {
  margin-top: 10px;
  font-size: 15px;
}

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

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

.reading-body p {
  margin-bottom: 12px;
  font-size: 15px;
}

.reading-body a {
  color: var(--teal-dark);
  border-bottom: 1px solid rgba(47, 158, 143, 0.35);
}

.reading-body a:hover {
  color: var(--teal);
  border-bottom-color: var(--teal);
}

.guide-reading .reading-layout {
  grid-template-columns: minmax(0, 1.35fr) minmax(0, 1fr);
  align-items: start;
}

.reading-figure {
  min-width: 0;
}

.reading-figure img {
  width: 100%;
  border-radius: var(--radius);
  border: 1px solid var(--line);
}

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

.step-item {
  position: relative;
  padding: 18px;
  background-color: var(--paper);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.step-index {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  font-size: 14px;
  font-weight: 600;
  color: #ffffff;
  background-color: var(--ink);
  border-radius: 50%;
}

.step-title {
  margin-top: 12px;
  font-size: 17px;
}

.step-item p {
  margin-top: 8px;
  font-size: 15px;
}

.tags-layout {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 32px;
  align-items: start;
}

.tags-col {
  min-width: 0;
  padding: 22px;
  background-color: var(--paper);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

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

.tags-col > p {
  margin-top: 10px;
  font-size: 15px;
}

.term-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-top: 16px;
}

.term-item {
  display: grid;
  grid-template-columns: 88px minmax(0, 1fr);
  gap: 12px;
  padding-top: 10px;
  border-top: 1px solid var(--line);
}

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

.term-desc {
  font-size: 14px;
  color: var(--ink-soft);
}

.term-ongoing .term-name {
  color: var(--teal-dark);
}

.term-finished .term-name {
  color: #7a838f;
}

.tags-note {
  margin-top: 16px;
  font-size: 14px;
  color: #6b7480;
}

.feedback-lead {
  max-width: 860px;
  font-size: 15px;
}

.feedback-layout {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 32px;
  margin-top: 22px;
  align-items: start;
}

.feedback-col {
  min-width: 0;
  padding: 22px;
  background-color: var(--paper);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.check-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-top: 14px;
}

.check-item {
  position: relative;
  padding-left: 24px;
  font-size: 15px;
  color: var(--ink-soft);
}

.check-item::before {
  content: "";
  position: absolute;
  left: 4px;
  top: 11px;
  width: 10px;
  height: 5px;
  border-left: 2px solid var(--teal);
  border-bottom: 2px solid var(--teal);
  transform: rotate(-45deg);
}

.feedback-note {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 20px;
  margin-top: 22px;
  padding-top: 16px;
  border-top: 1px solid var(--line);
  font-size: 14px;
}

.feedback-note a {
  color: var(--teal-dark);
  border-bottom: 1px solid rgba(47, 158, 143, 0.35);
}

.feedback-note a:hover {
  color: var(--teal);
  border-bottom-color: var(--teal);
}

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

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

.faq-question {
  display: flex;
  align-items: center;
  min-height: 52px;
  padding: 12px 18px;
  font-size: 16px;
  font-weight: 600;
  color: var(--ink);
  cursor: pointer;
  list-style: none;
}

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

.faq-question::after {
  content: "+";
  margin-left: auto;
  padding-left: 16px;
  font-size: 20px;
  font-weight: 400;
  color: var(--teal-dark);
}

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

.faq-item[open] .faq-question {
  border-bottom: 1px solid var(--line);
}

.faq-answer {
  padding: 14px 18px 18px;
}

.faq-answer p {
  font-size: 15px;
}

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

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

.entry-item a {
  display: flex;
  align-items: center;
  min-height: 60px;
  padding: 14px 16px;
  font-size: 15px;
  color: var(--ink);
  background-color: var(--paper);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.entry-item a:hover {
  color: var(--teal-dark);
  border-color: var(--teal);
}

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

.error-main {
  max-width: var(--shell);
  margin: 0 auto;
  padding: 0 24px 64px;
}

.error-block {
  padding: 56px 0 8px;
  border-bottom: 1px solid var(--line);
}

.error-block h1 {
  font-size: 34px;
}

.error-lead {
  max-width: 720px;
  margin-top: 14px;
  font-size: 16px;
}

.error-links {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 14px;
  margin-top: 26px;
}

.error-links a {
  display: flex;
  align-items: center;
  min-height: 56px;
  padding: 12px 16px;
  font-size: 15px;
  color: var(--ink);
  background-color: var(--paper);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

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

.error-note {
  margin-top: 24px;
  font-size: 14px;
  color: #6b7480;
}

/* ============================================================
   motion — 仅作增强，不影响初始可见性
   ============================================================ */

.category-block,
.work-card,
.rank-row,
.updates-item,
.ranking-item,
.crosslink-item,
.step-item,
.entry-item,
.index-item {
  transition: background-color 0.18s ease, border-color 0.18s ease, box-shadow 0.18s ease;
}

@media (prefers-reduced-motion: reduce) {
  * {
    transition: none !important;
    animation: none !important;
  }
}

/* ============================================================
   responsive — 1024 / 768 / 480
   ============================================================ */

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

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

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

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

  .ranking-layout,
  .ranking-basis-grid {
    grid-template-columns: minmax(0, 1fr);
    gap: 26px;
  }

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

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

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

  .guide-reading .reading-layout {
    grid-template-columns: minmax(0, 1fr);
  }

  .update-row {
    grid-template-columns: 92px minmax(0, 1.6fr) 88px 88px 84px;
    gap: 12px;
  }
}

@media (max-width: 768px) {
  .header-inner {
    gap: 10px 16px;
    padding: 10px 18px;
  }

  .nav-toggle {
    display: flex;
    order: 3;
    margin-left: auto;
  }

  .site-nav {
    order: 4;
    flex: 1 1 100%;
  }

  .nav-list {
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 2px;
    width: 100%;
    padding: 8px 0 12px;
    border-top: 1px solid #2b3d59;
  }

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

  .nav-list a {
    min-height: 46px;
    padding: 0 4px;
    border-bottom: 1px solid #24354f;
  }

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

  .header-note {
    order: 2;
    font-size: 12px;
  }

  .site-fact-bar {
    padding: 8px 18px;
    text-align: left;
  }

  .home-section,
  .hero-section {
    padding-left: 18px;
    padding-right: 18px;
  }

  .hero-section {
    padding-top: 28px;
  }

  .inner-main,
  .error-main {
    padding-left: 18px;
    padding-right: 18px;
  }

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

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

  .section-head h2,
  .section-title {
    font-size: 21px;
  }

  .category-grid,
  .topic-tag-list,
  .work-list,
  .rules-grid,
  .crosslink-list,
  .step-list,
  .reading-layout,
  .followup-columns,
  .tags-layout,
  .feedback-layout,
  .ranking-combo-grid,
  .index-grid {
    grid-template-columns: minmax(0, 1fr);
  }

  .entry-list,
  .error-links {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .update-row {
    grid-template-columns: minmax(0, 1fr) auto;
    grid-template-areas:
      "date status"
      "name name"
      "tag chapter";
    gap: 6px 12px;
    padding: 14px 2px;
  }

  .update-row .update-date {
    grid-area: date;
  }

  .update-row .work-name {
    grid-area: name;
  }

  .update-row .tag {
    grid-area: tag;
    justify-self: start;
  }

  .update-row .chapter {
    grid-area: chapter;
    justify-self: end;
  }

  .update-row .status {
    grid-area: status;
    justify-self: end;
  }

  .rank-row {
    grid-template-columns: 36px minmax(0, 1fr);
    grid-template-areas:
      "no name"
      "no tag"
      "no note";
    gap: 4px 12px;
  }

  .rank-row .rank-no {
    grid-area: no;
  }

  .rank-row .work-name {
    grid-area: name;
  }

  .rank-row .tag {
    grid-area: tag;
    justify-self: start;
  }

  .rank-row .rank-note {
    grid-area: note;
  }

  .updates-timeline {
    margin-top: 22px;
  }

  .updates-item {
    grid-template-columns: minmax(0, 1fr);
    gap: 6px;
    padding-bottom: 20px;
  }

  .ranking-item {
    grid-template-columns: 44px minmax(0, 1fr);
    gap: 12px;
  }

  .rank-index {
    font-size: 20px;
  }

  .footer-inner {
    grid-template-columns: minmax(0, 1fr);
    gap: 24px;
    padding: 32px 18px 22px;
  }

  .footer-bottom p {
    padding-left: 18px;
    padding-right: 18px;
  }
}

@media (max-width: 480px) {
  body.site-body {
    font-size: 15px;
  }

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

  .header-note {
    display: none;
  }

  .page-title {
    font-size: 23px;
  }

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

  .hero-actions {
    gap: 10px;
  }

  .btn {
    flex: 1 1 100%;
  }

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

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

  .ranking-aside,
  .reading-col,
  .followup-col,
  .tags-col,
  .feedback-col,
  .combo-col,
  .ranking-basis-aside,
  .step-item,
  .rule-item,
  .crosslink-item {
    padding: 16px;
  }
}