:root {
  --ink: #17202a;
  --muted: #5d6b7a;
  --line: #d9e2ea;
  --paper: #ffffff;
  --soft: #f4f7fa;
  --accent: #0f6ea8;
  --accent-dark: #084c7a;
  --accent-soft: #e6f3fa;
  --warm: #f3a43b;
  --ok: #1f8a61;
  --shadow: 0 16px 40px rgba(23, 32, 42, 0.12);
  --radius: 8px;
  --max: 1120px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.75;
  background: var(--paper);
}

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

a {
  color: inherit;
}

.skip-link {
  position: absolute;
  left: 16px;
  top: -48px;
  z-index: 100;
  padding: 8px 12px;
  background: var(--ink);
  color: #fff;
}

.skip-link:focus {
  top: 12px;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  border-bottom: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.96);
  backdrop-filter: blur(12px);
}

.header-inner,
.section-inner,
.footer-inner {
  width: min(100% - 32px, var(--max));
  margin: 0 auto;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 72px;
  gap: 20px;
}

.brand {
  display: inline-flex;
  flex-direction: column;
  text-decoration: none;
  line-height: 1.25;
}

.brand-mark {
  color: var(--accent);
  font-weight: 800;
  letter-spacing: 0;
  font-size: 1.18rem;
}

.brand-sub {
  color: var(--muted);
  font-size: 0.78rem;
}

.site-logo {
  display: inline-flex;
  align-items: center;
  flex: 0 0 auto;
}

.site-logo img {
  display: block;
  width: min(260px, 42vw);
  height: auto;
}

.nav-toggle {
  display: none;
  border: 1px solid var(--line);
  background: var(--paper);
  color: var(--ink);
  width: 44px;
  height: 44px;
  border-radius: var(--radius);
  font-size: 1.4rem;
  cursor: pointer;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 4px;
  font-size: 0.92rem;
  font-weight: 700;
}

.site-nav a {
  padding: 10px 12px;
  border-radius: var(--radius);
  text-decoration: none;
  color: var(--ink);
}

.site-nav a:hover,
.site-nav a[aria-current="page"] {
  background: var(--accent-soft);
  color: var(--accent-dark);
}

.nav-label-line {
  display: block;
  line-height: 1.15;
}

.button,
.text-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 44px;
  padding: 10px 18px;
  border-radius: var(--radius);
  border: 1px solid transparent;
  font-weight: 800;
  text-decoration: none;
  line-height: 1.3;
}

.button.primary {
  background: var(--accent);
  color: #fff;
}

.button.primary:hover {
  background: var(--accent-dark);
}

.button.secondary {
  border-color: var(--accent);
  color: var(--accent-dark);
  background: #fff;
}

.button.secondary:hover {
  background: var(--accent-soft);
}

.text-link {
  padding-inline: 0;
  color: var(--accent-dark);
}

.hero {
  overflow: hidden;
  background:
    linear-gradient(120deg, rgba(15, 110, 168, 0.12), rgba(31, 138, 97, 0.08)),
    linear-gradient(180deg, #fff, #f6fafc);
}

.hero-inner {
  width: min(100% - 32px, var(--max));
  margin: 0 auto;
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(280px, 0.85fr);
  align-items: center;
  gap: 48px;
  min-height: 620px;
  padding: 72px 0;
}

.eyebrow {
  margin: 0 0 14px;
  color: var(--accent-dark);
  font-weight: 800;
  font-size: 0.92rem;
}

h1,
h2,
h3 {
  line-height: 1.32;
  margin: 0;
  letter-spacing: 0;
}

h1 {
  font-size: clamp(2.2rem, 5vw, 4.5rem);
  max-width: 820px;
}

h2 {
  font-size: clamp(1.75rem, 3vw, 2.55rem);
}

h3 {
  font-size: 1.18rem;
}

.lead {
  margin: 22px 0 0;
  color: var(--muted);
  font-size: 1.1rem;
  max-width: 720px;
}

.hero-actions,
.section-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 30px;
}

.hero-panel {
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 26px;
}

.signal-list,
.check-list,
.plain-list {
  padding: 0;
  margin: 0;
  list-style: none;
}

.signal-list li {
  display: grid;
  grid-template-columns: 40px 1fr;
  gap: 14px;
  padding: 18px 0;
  border-bottom: 1px solid var(--line);
}

.signal-list li:last-child {
  border-bottom: 0;
}

.signal-icon {
  display: grid;
  place-items: center;
  width: 40px;
  height: 40px;
  border-radius: var(--radius);
  background: var(--accent-soft);
  color: var(--accent-dark);
  font-weight: 900;
}

section,
.page-hero {
  padding: 72px 0;
}

.page-hero {
  background: var(--soft);
  border-bottom: 1px solid var(--line);
}

.section-head {
  display: grid;
  grid-template-columns: minmax(0, 0.8fr) minmax(0, 1.2fr);
  gap: 32px;
  align-items: end;
  margin-bottom: 34px;
}

.section-head p {
  margin: 0;
  color: var(--muted);
}

.grid {
  display: grid;
  gap: 20px;
}

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

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

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

.card.feature {
  min-height: 100%;
}

.card p {
  margin: 12px 0 0;
  color: var(--muted);
}

.service-card {
  display: flex;
  flex-direction: column;
  min-height: 100%;
}

.service-card .text-link {
  margin-top: auto;
}

.soft-band {
  background: var(--soft);
}

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

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

.manga-card img {
  width: 100%;
  height: auto;
  object-fit: contain;
  background: #fff;
}

.manga-card-body {
  padding: 14px;
}

.manga-card-body p {
  margin: 4px 0 0;
  color: var(--muted);
  font-size: 0.92rem;
}

.cta-band {
  background: var(--accent-dark);
  color: #fff;
}

.cta-band p {
  color: rgba(255, 255, 255, 0.84);
}

.cta-band .button.secondary {
  border-color: #fff;
  background: transparent;
  color: #fff;
}

.table-wrap {
  overflow-x: auto;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
}

table {
  width: 100%;
  border-collapse: collapse;
  min-width: 640px;
}

th,
td {
  padding: 16px;
  border-bottom: 1px solid var(--line);
  text-align: left;
  vertical-align: top;
}

th {
  width: 220px;
  background: var(--soft);
}

tr:last-child th,
tr:last-child td {
  border-bottom: 0;
}

.notice {
  border-left: 4px solid var(--warm);
  background: #fff8ed;
  padding: 16px 18px;
  border-radius: var(--radius);
}

.check-list li,
.plain-list li {
  padding: 10px 0;
  border-bottom: 1px solid var(--line);
}

.check-list li::before {
  content: "✓";
  color: var(--ok);
  font-weight: 900;
  margin-right: 10px;
}

.plain-list li:last-child,
.check-list li:last-child {
  border-bottom: 0;
}

.site-footer {
  background: #111820;
  color: #fff;
  padding: 48px 0 26px;
}

.footer-inner {
  display: grid;
  gap: 28px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 24px;
  align-items: start;
}

.footer-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 18px;
}

.footer-nav a {
  color: rgba(255, 255, 255, 0.82);
  text-decoration: none;
}

.copyright {
  color: rgba(255, 255, 255, 0.62);
  font-size: 0.86rem;
}

@media (max-width: 920px) {
  .nav-toggle {
    display: inline-grid;
    place-items: center;
  }

  .site-nav {
    position: absolute;
    left: 16px;
    right: 16px;
    top: 72px;
    display: none;
    flex-direction: column;
    align-items: stretch;
    padding: 12px;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background: #fff;
    box-shadow: var(--shadow);
  }

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

  .site-nav a {
    padding: 12px;
  }

  .hero-inner,
  .section-head,
  .grid.three,
  .grid.two,
  .footer-grid {
    grid-template-columns: 1fr;
  }

  .hero-inner {
    min-height: auto;
    padding: 56px 0;
  }

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

@media (max-width: 560px) {
  .header-inner,
  .section-inner,
  .footer-inner,
  .hero-inner {
    width: min(100% - 24px, var(--max));
  }

  section,
  .page-hero {
    padding: 52px 0;
  }

  .hero-actions,
  .section-actions {
    flex-direction: column;
  }

  .button {
    width: 100%;
  }

  .site-logo img {
    width: min(200px, 58vw);
  }

  .manga-grid {
    grid-template-columns: 1fr;
  }

  th,
  td {
    padding: 12px;
  }
}