:root {
  --ck-ink: #2b3137;
  --ck-muted: #68727c;
  --ck-line: #dfe4e8;
  --ck-paper: #ffffff;
  --ck-canvas: #f6f8f9;
  --ck-accent: #f39a32;
  --ck-accent-dark: #a84d08;
  --ck-blue: #315777;
  --ck-brand-highlight: #7cdbf6;
  --ck-blue-soft: #eaf6fc;
  --ck-pink-soft: #fff0f4;
  --ck-yellow-soft: #fff8db;
  --ck-max: 1180px;
  color-scheme: light;
  font-family: -apple-system, BlinkMacSystemFont, "Hiragino Sans", "Yu Gothic UI", "Yu Gothic", Meiryo, sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ck-ink);
  background: var(--ck-canvas);
  font-size: 16px;
  line-height: 1.8;
}

a {
  color: #176b9d;
  text-decoration-thickness: 1px;
  text-underline-offset: 0.18em;
}

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

:where(a, button, input, select, summary):focus-visible {
  outline: 3px solid #0b5e8c;
  outline-offset: 3px;
}

.ck-header :where(a, button, input):focus-visible {
  outline-color: #fff;
}

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

.ck-skip {
  position: fixed;
  top: 0.5rem;
  left: 0.5rem;
  z-index: 100;
  padding: 0.65rem 1rem;
  border-radius: 0.4rem;
  background: #111;
  color: #fff;
  transform: translateY(-160%);
}

.ck-skip:focus {
  transform: translateY(0);
}

.ck-header {
  border-top: 0;
  border-bottom: 1px solid var(--ck-line);
  background: var(--ck-blue);
}

.ck-header__inner {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  width: min(calc(100% - 2rem), var(--ck-max));
  min-height: 70px;
  margin: 0 auto;
}

.ck-brand {
  display: flex;
  flex-direction: column;
  flex: 0 0 auto;
  color: #fff;
  line-height: 1.15;
  text-decoration: none;
}

.ck-brand small {
  color: #cfe1ed;
  font-size: 0.68rem;
  letter-spacing: 0.12em;
}

.ck-brand strong {
  font-size: 1.25rem;
  letter-spacing: 0.03em;
}

.ck-brand span {
  color: var(--ck-brand-highlight);
}

.ck-nav {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-left: auto;
  font-size: 0.92rem;
}

.ck-nav a {
  color: #fff;
  font-weight: 700;
  text-decoration: none;
}

.ck-nav a:hover {
  color: var(--ck-brand-highlight);
}

.ck-header-search {
  display: flex;
  width: min(360px, 34vw);
  margin-left: auto;
}

.ck-header-search input,
.ck-search input,
.ck-search select {
  min-width: 0;
  border: 1px solid #b9c3ca;
  border-radius: 0.42rem;
  background: #fff;
  color: var(--ck-ink);
  font: inherit;
}

.ck-header-search input {
  width: 100%;
  padding: 0.55rem 0.75rem;
  border-radius: 0.42rem 0 0 0.42rem;
}

.ck-topic-nav {
  border-bottom: 1px solid var(--ck-line);
  background: #fff;
}

.ck-topic-nav > div {
  display: flex;
  width: min(calc(100% - 2rem), var(--ck-max));
  margin: 0 auto;
  overflow-x: auto;
  scrollbar-width: thin;
}

.ck-topic-nav a {
  flex: 0 0 auto;
  padding: 0.45rem 0.8rem;
  border-right: 1px solid #edf0f2;
  color: #39749a;
  font-size: 0.78rem;
  font-weight: 700;
  text-decoration: none;
}

.ck-header-search button,
.ck-search button {
  border: 0;
  border-radius: 0 0.42rem 0.42rem 0;
  background: var(--ck-accent);
  color: var(--ck-ink);
  font: inherit;
  font-weight: 700;
  cursor: pointer;
}

.ck-header-search button {
  padding: 0.55rem 0.9rem;
  white-space: nowrap;
}

.ck-shell {
  width: min(calc(100% - 2rem), var(--ck-max));
  margin: 0 auto;
}

.ck-breadcrumbs {
  padding: 0.85rem 0;
  color: var(--ck-muted);
  font-size: 0.78rem;
}

.ck-breadcrumbs ol {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.ck-breadcrumbs li:not(:last-child)::after {
  margin-left: 0.45rem;
  color: #9aa3aa;
  content: ">";
}

.ck-panel {
  border: 1px solid var(--ck-line);
  border-radius: 0.35rem;
  background: var(--ck-paper);
  box-shadow: 0 1px 2px rgba(31, 44, 53, 0.04);
}

.ck-home-hero {
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) minmax(220px, 0.6fr);
  gap: 2rem;
  padding: clamp(1.25rem, 3vw, 2rem);
  background: linear-gradient(135deg, #fff 0%, var(--ck-pink-soft) 58%, var(--ck-blue-soft) 100%);
}

.ck-kicker {
  margin: 0 0 0.35rem;
  color: var(--ck-accent-dark);
  font-size: 0.8rem;
  font-weight: 800;
  letter-spacing: 0.14em;
}

.ck-home-hero h1,
.ck-article-header h1 {
  margin: 0;
  line-height: 1.3;
  letter-spacing: 0.02em;
}

.ck-home-hero h1 {
  font-size: clamp(1.8rem, 4vw, 2.6rem);
}

.ck-deck {
  max-width: 48rem;
  margin: 1rem 0 0;
  color: #4e5962;
  font-size: 1.04rem;
}

.ck-stat {
  align-self: center;
  padding: 1.25rem;
  border: 1px solid rgba(232, 94, 120, 0.22);
  border-radius: 0.6rem;
  background: rgba(255, 255, 255, 0.8);
}

.ck-stat strong {
  display: block;
  color: var(--ck-accent-dark);
  font-size: 2rem;
  line-height: 1.2;
}

.ck-stat small {
  color: var(--ck-muted);
}

.ck-search {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(140px, 0.26fr) auto;
  gap: 0.55rem;
  margin-top: 1rem;
  padding: 1rem;
}

.ck-search input,
.ck-search select {
  width: 100%;
  padding: 0.72rem 0.8rem;
}

.ck-search button {
  padding: 0.72rem 1.1rem;
  border-radius: 0.42rem;
}

.ck-home-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 280px;
  gap: 1.25rem;
  margin: 1.25rem 0 2rem;
}

.ck-section {
  padding: 1.3rem;
}

.ck-section + .ck-section {
  margin-top: 1.25rem;
}

.ck-section-title {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 1rem;
  margin: 0 0 1rem;
  padding-bottom: 0.6rem;
  border-bottom: 2px solid var(--ck-line);
  font-size: 1.25rem;
  line-height: 1.4;
}

.ck-card-grid {
  display: block;
}

.ck-hub {
  margin-bottom: 2rem;
}

.ck-hub-hero {
  position: relative;
  margin-bottom: 1.25rem;
  padding: clamp(1.4rem, 4vw, 2.6rem);
  background: linear-gradient(135deg, #fff7f0, #eef8fd);
}

.ck-hub-hero h1 {
  margin: 0.15rem 0 0.75rem;
  font-size: clamp(1.8rem, 4vw, 2.7rem);
  line-height: 1.35;
  text-wrap: balance;
}

.ck-hub-count {
  margin: 1rem 0 0;
  color: var(--ck-muted);
}

.ck-hub-count strong {
  margin-right: 0.2em;
  color: var(--ck-accent-dark);
  font-size: 1.8rem;
}

.ck-hub-section + .ck-hub-section,
.ck-timeline-year + .ck-timeline-year {
  margin-top: 1.25rem;
}

.ck-hub-card-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0 1.25rem;
}

.ck-range-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
  margin-bottom: 1.25rem;
  padding: 1rem;
}

.ck-range-nav a {
  padding: 0.35rem 0.7rem;
  border: 1px solid var(--ck-line);
  border-radius: 999px;
  background: #fff;
  text-decoration: none;
}

.ck-episode-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.85rem;
}

.ck-episode-tile {
  display: grid;
  grid-template-columns: 88px minmax(0, 1fr);
  min-width: 0;
  overflow: hidden;
  border: 1px solid var(--ck-line);
  border-radius: 0.35rem;
  background: #fff;
}

.ck-episode-tile__image {
  display: block;
  min-height: 88px;
  background: #eef1f3;
}

.ck-episode-tile__image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.ck-episode-tile > div {
  min-width: 0;
  padding: 0.65rem;
}

.ck-episode-tile p,
.ck-episode-tile h3 {
  margin: 0;
}

.ck-episode-tile p {
  color: var(--ck-accent-dark);
  font-size: 0.72rem;
  font-weight: 800;
}

.ck-episode-tile h3 {
  font-size: 0.88rem;
  line-height: 1.5;
}

.ck-episode-tile h3 a {
  color: var(--ck-ink);
  text-decoration: none;
}

.ck-timeline-events {
  display: grid;
  gap: 0.55rem;
  margin: 0 0 1.25rem;
  padding: 0;
  list-style: none;
}

.ck-timeline-events li {
  display: grid;
  grid-template-columns: 9rem minmax(0, 1fr);
  gap: 0.8rem;
  padding: 0.6rem 0;
  border-bottom: 1px solid var(--ck-line);
}

.ck-timeline-events time {
  color: var(--ck-muted);
  font-weight: 700;
}

.ck-archive-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0.75rem;
}

.ck-archive-tile {
  overflow: hidden;
  border: 1px solid var(--ck-line);
  border-radius: 0.35rem;
  background: #fff;
  color: var(--ck-ink);
  text-decoration: none;
}

.ck-archive-tile img {
  display: block;
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  background: #eef1f3;
}

.ck-archive-tile span {
  display: block;
  padding: 0.6rem;
  font-size: 0.82rem;
  font-weight: 700;
}

.ck-card {
  display: grid;
  grid-template-columns: 116px minmax(0, 1fr);
  gap: 0.9rem;
  padding: 0.85rem 0;
  border: 0;
  border-bottom: 1px solid var(--ck-line);
  border-radius: 0;
  background: #fff;
}

.ck-card:first-child {
  border-top: 1px solid var(--ck-line);
}

.ck-card__image {
  display: block;
  aspect-ratio: 1 / 1;
  border: 1px solid var(--ck-line);
  border-radius: 0.2rem;
  overflow: hidden;
  background: #eef1f3;
}

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

.ck-card__body {
  min-width: 0;
  padding: 0;
}

.ck-card__type {
  margin: 0 0 0.25rem;
  color: var(--ck-accent-dark);
  font-size: 0.72rem;
  font-weight: 800;
}

.ck-card h3 {
  margin: 0;
  font-size: 1.05rem;
  line-height: 1.5;
}

.ck-card h3 a {
  color: var(--ck-ink);
  text-decoration: none;
}

.ck-card p:last-child {
  margin-bottom: 0;
  color: var(--ck-muted);
  font-size: 0.9rem;
}

.ck-card__more {
  margin-top: 0.2rem;
  font-size: 0.8rem !important;
  font-weight: 700;
}

.ck-category-list,
.ck-related-list,
.ck-index-list {
  margin: 0;
  padding: 0;
  list-style: none;
}

.ck-category-list li + li,
.ck-related-list li + li,
.ck-index-list li + li {
  border-top: 1px solid var(--ck-line);
}

.ck-category-list a,
.ck-related-list a,
.ck-index-list a {
  display: flex;
  justify-content: space-between;
  gap: 0.75rem;
  padding: 0.65rem 0;
  color: var(--ck-ink);
  text-decoration: none;
}

.ck-category-list strong {
  color: var(--ck-accent-dark);
}

.ck-article-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 280px;
  gap: 1.25rem;
  align-items: start;
  margin-bottom: 2rem;
}

.ck-article {
  min-width: 0;
  padding: clamp(1.2rem, 3vw, 2.2rem);
}

.ck-article-header {
  margin-bottom: 1.7rem;
  padding-bottom: 1.3rem;
  border-bottom: 1px solid var(--ck-line);
}

.ck-article-hero,
.ck-inline-media {
  margin: 1.4rem 0 2rem;
  overflow: hidden;
  border: 1px solid var(--ck-line);
  border-radius: 0.35rem;
  background: #f1f3f4;
}

.ck-article-hero img,
.ck-inline-media img {
  display: block;
  width: 100%;
  max-height: 560px;
  object-fit: contain;
  background: #f1f3f4;
}

.ck-article-hero figcaption,
.ck-inline-media figcaption,
.ck-infobox__image figcaption {
  padding: 0.55rem 0.7rem;
  border-top: 1px solid var(--ck-line);
  background: #fff;
  color: var(--ck-muted);
  font-size: 0.78rem;
  line-height: 1.55;
}

.ck-media--contain img {
  max-height: 360px;
  padding: 1rem;
  object-fit: contain;
}

.ck-article-header h1 {
  font-size: clamp(1.75rem, 4vw, 2.7rem);
}

.ck-article-header .ck-deck {
  font-size: 1.06rem;
}

.ck-article-body h2 {
  margin: 2.2rem 0 0.8rem;
  padding: 0.55rem 0 0.55rem 0.8rem;
  border-left: 5px solid var(--ck-accent);
  background: linear-gradient(90deg, var(--ck-pink-soft), transparent 75%);
  font-size: 1.45rem;
  line-height: 1.45;
}

.ck-article-body p {
  margin: 0 0 1.05rem;
}

.ck-manga-feed {
  display: grid;
  gap: 1.4rem;
  margin-top: 1rem;
}

.ck-manga-feed__item {
  overflow: hidden;
  border: 1px solid var(--ck-line);
  border-radius: 0.45rem;
  background: #fff;
}

.ck-manga-feed__item > header,
.ck-manga-feed__item > p,
.ck-manga-feed__meta {
  margin-right: 1rem;
  margin-left: 1rem;
}

.ck-manga-feed__item > header {
  padding-top: 1rem;
}

.ck-manga-feed__item h3 {
  margin: 0.15rem 0 0.8rem;
  font-size: 1.22rem;
  line-height: 1.45;
}

.ck-manga-feed__date {
  margin-bottom: 0;
  color: var(--ck-muted);
  font-size: 0.8rem;
  font-weight: 700;
}

.ck-manga-feed__text {
  color: var(--ck-text);
  font-size: 0.94rem;
}

.ck-manga-feed__media {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 230px), 1fr));
  gap: 1px;
  border-top: 1px solid var(--ck-line);
  border-bottom: 1px solid var(--ck-line);
  background: var(--ck-line);
}

.ck-manga-feed__figure {
  margin: 0;
  background: #f5f6f7;
}

.ck-manga-feed__figure img {
  display: block;
  width: 100%;
  height: auto;
  max-height: 720px;
  object-fit: contain;
  background: #f5f6f7;
}

.ck-manga-feed__figure figcaption {
  padding: 0.5rem 0.65rem;
  border-top: 1px solid var(--ck-line);
  background: #fff;
  color: var(--ck-muted);
  font-size: 0.74rem;
  line-height: 1.5;
}

.ck-manga-feed__meta {
  display: grid;
  grid-template-columns: max-content minmax(0, 1fr);
  gap: 0.35rem 0.75rem;
  padding-top: 0.8rem;
  font-size: 0.86rem;
}

.ck-manga-feed__meta dt {
  color: var(--ck-muted);
  font-weight: 700;
}

.ck-manga-feed__meta dd {
  margin: 0;
}

.ck-manga-feed__source {
  padding-bottom: 0.9rem;
  font-size: 0.86rem;
}

.ck-side {
  display: grid;
  gap: 1rem;
}

.ck-side .ck-panel {
  padding: 1rem;
}

.ck-side h2 {
  margin: 0 0 0.65rem;
  font-size: 1rem;
}

.ck-toc {
  position: sticky;
  top: 1rem;
  max-height: calc(100vh - 2rem);
  overflow: auto;
}

.ck-toc--mobile {
  display: none;
}

.ck-toc ol {
  margin: 0;
  padding-left: 1.2rem;
  font-size: 0.88rem;
}

.ck-toc li + li {
  margin-top: 0.35rem;
}

.ck-infobox dl {
  display: grid;
  grid-template-columns: minmax(5.5rem, 0.4fr) minmax(0, 1fr);
  margin: 0;
  font-size: 0.85rem;
}

.ck-infobox__image {
  margin: 0 0 0.8rem;
  overflow: hidden;
  border: 1px solid var(--ck-line);
  border-radius: 0.3rem;
  background: var(--ck-blue-soft);
}

.ck-infobox__image img {
  display: block;
  width: 100%;
  max-height: 240px;
  padding: 0.8rem;
  object-fit: contain;
}

.ck-infobox dt,
.ck-infobox dd {
  margin: 0;
  padding: 0.48rem 0;
  border-bottom: 1px solid var(--ck-line);
}

.ck-infobox dt {
  color: var(--ck-muted);
  font-weight: 700;
}

.ck-gallery {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.8rem;
  margin: 1.5rem 0;
}

.ck-gallery figure {
  margin: 0;
  overflow: hidden;
  border: 1px solid var(--ck-line);
  border-radius: 0.5rem;
  background: #fff;
}

.ck-gallery img {
  display: block;
  width: 100%;
  aspect-ratio: 16 / 10;
  object-fit: cover;
  background: #eef1f3;
}

.ck-gallery figcaption {
  padding: 0.6rem 0.7rem;
  color: var(--ck-muted);
  font-size: 0.78rem;
  line-height: 1.55;
}

.ck-source-list {
  margin: 0;
  padding: 0;
  list-style: none;
}

.ck-source-list li {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 0.3rem 1rem;
  padding: 0.6rem 0;
  border-bottom: 1px solid var(--ck-line);
}

.ck-source-list small {
  color: var(--ck-muted);
}

.ck-preview-note {
  margin: 0 0 1rem;
  padding: 0.75rem 1rem;
  border: 1px solid #e2b349;
  border-radius: 0.45rem;
  background: var(--ck-yellow-soft);
  font-size: 0.85rem;
}

.ck-index-group + .ck-index-group {
  margin-top: 1.2rem;
}

.ck-index-group h2 {
  margin: 0;
  padding: 0.65rem 0.8rem;
  border-radius: 0.35rem;
  background: var(--ck-blue-soft);
  font-size: 1.1rem;
}

.ck-index-list li[hidden] {
  display: none;
}

.ck-footer {
  margin-top: 2rem;
  padding: 2rem 0;
  border-top: 1px solid var(--ck-line);
  background: #fff;
  color: var(--ck-muted);
  font-size: 0.82rem;
}

.ck-footer__inner {
  display: flex;
  justify-content: space-between;
  gap: 2rem;
  width: min(calc(100% - 2rem), var(--ck-max));
  margin: 0 auto;
}

.ck-footer p {
  margin: 0;
}

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

@media (max-width: 860px) {
  .ck-header__inner {
    flex-wrap: wrap;
    gap: 0.7rem 1rem;
    padding: 0.7rem 0;
  }

  .ck-header-search {
    order: 3;
    width: 100%;
    margin: 0;
  }

  .ck-home-hero,
  .ck-home-grid,
  .ck-article-layout {
    grid-template-columns: minmax(0, 1fr);
  }

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

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

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

  .ck-toc {
    position: static;
    max-height: none;
  }

  .ck-toc--desktop {
    display: none;
  }

  .ck-toc--mobile {
    display: block;
    margin: 0 0 1.5rem;
    padding: 1rem;
  }
}

@media (max-width: 620px) {
  body {
    font-size: 15px;
  }

  .ck-shell {
    width: min(calc(100% - 1rem), var(--ck-max));
  }

  .ck-brand strong {
    font-size: 1.08rem;
  }

  .ck-nav {
    gap: 0.65rem;
    font-size: 0.78rem;
  }

  .ck-home-hero {
    gap: 1rem;
  }

  .ck-search,
  .ck-side,
  .ck-gallery,
  .ck-hub-card-grid,
  .ck-episode-grid {
    grid-template-columns: minmax(0, 1fr);
  }

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

  .ck-timeline-events li {
    grid-template-columns: minmax(0, 1fr);
    gap: 0.1rem;
  }

  .ck-card {
    grid-template-columns: 92px minmax(0, 1fr);
    gap: 0.7rem;
  }

  .ck-article {
    padding: 1rem;
  }

  .ck-toc details:not([open]) ol {
    display: none;
  }

  .ck-footer__inner {
    flex-direction: column;
    gap: 0.7rem;
  }
}

.ck-not-found {
  margin: 24px auto 64px;
  max-width: 820px;
  padding: clamp(28px, 6vw, 64px);
  text-align: center;
}

.ck-not-found h1 {
  font-size: clamp(1.75rem, 8vw, 2.5rem);
  line-height: 1.35;
  text-wrap: balance;
}

.ck-not-found .ck-search {
  margin: 32px 0 20px;
  text-align: left;
}

.ck-not-found__links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  justify-content: center;
}

.ck-not-found__links a {
  border: 1px solid var(--ck-line);
  border-radius: 8px;
  padding: 10px 16px;
}

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