:root {
  --bg: #f4faff;
  --paper: #ffffff;
  --ink: #0f2747;
  --muted: #4f6784;
  --line: #dce6f4;
  --soft: #f4f8ff;
  --primary: #2563eb;
  --primary-ink: #ffffff;
  --secondary: #164e63;
  --radius: 14px;
  --max: 1100px;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
}

body {
  color: var(--ink);
  background:
    radial-gradient(960px 520px at -4% -10%, rgba(37,99,235,.20), transparent 64%),
    radial-gradient(720px 460px at 102% 2%, rgba(34,211,238,.18), transparent 58%),
    linear-gradient(180deg, #f7fcff 0%, #eef5ff 100%);
  font-family: "Hiragino Kaku Gothic ProN", "Yu Gothic", "Noto Sans JP", Meiryo, sans-serif;
  line-height: 1.7;
}

a {
  color: inherit;
}

.container {
  max-width: var(--max);
  margin: 0 auto;
  padding: 24px 16px 48px;
}

.skip {
  position: absolute;
  left: -10000px;
}

.skip:focus {
  left: 16px;
  top: 8px;
  z-index: 1000;
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 8px 10px;
}

.siteHeader {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  margin-bottom: 20px;
}

.brand {
  text-decoration: none;
  display: grid;
  gap: 2px;
}

.brand strong {
  font-size: 16px;
}

.brand span {
  font-size: 12px;
  color: var(--muted);
}

nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 8px;
}

nav a {
  text-decoration: none;
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 7px 10px;
  font-size: 12px;
  background: var(--paper);
  transition: .2s ease;
}

nav a:hover {
  border-color: rgba(37,99,235,.45);
  box-shadow: 0 0 0 3px rgba(37,99,235,.08);
}

.section {
  margin-top: 28px;
}

.section h2 {
  margin: 0 0 10px;
  font-size: 24px;
  line-height: 1.35;
}

.sectionLead {
  margin: 0;
  color: var(--muted);
}

.hero {
  margin-top: 10px;
  border: 1px solid #cfe0fa;
  border-radius: calc(var(--radius) + 2px);
  background:
    radial-gradient(circle at 88% 10%, rgba(34,211,238,.30) 0%, transparent 38%),
    linear-gradient(145deg, rgba(37,99,235,.08), rgba(255,255,255,.94) 40%);
  padding: 24px;
  box-shadow: 0 18px 40px rgba(23,63,112,.12);
}

.eyebrow {
  margin: 0;
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--secondary);
  font-weight: 700;
}

.hero h1 {
  margin: 8px 0 10px;
  font-size: clamp(28px, 4vw, 42px);
  line-height: 1.24;
}

.lead {
  margin: 0;
  color: var(--muted);
}

.grid {
  display: grid;
  gap: 12px;
}

@media (min-width: 900px) {
  .grid.cols-3 {
    grid-template-columns: repeat(3, 1fr);
  }
}

.card {
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 16px;
  box-shadow: 0 10px 24px rgba(16,46,86,.08);
  backdrop-filter: blur(3px);
}

.card h3 {
  margin: 0 0 4px;
  font-size: 18px;
}

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

.list {
  margin: 8px 0 0;
  padding-left: 18px;
}

.list li {
  margin: 4px 0;
  color: var(--muted);
}

.tableWrap {
  margin-top: 12px;
  overflow-x: auto;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--paper);
  box-shadow: 0 14px 28px rgba(16,46,86,.10);
}

table {
  width: 100%;
  min-width: 1120px;
  border-collapse: collapse;
}

th,
td {
  border-bottom: 1px solid var(--line);
  text-align: left;
  vertical-align: top;
  padding: 12px 10px;
  font-size: 14px;
}

th {
  font-size: 12px;
  color: var(--muted);
  font-weight: 700;
  background: var(--soft);
}

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

.textLink {
  color: var(--secondary);
  text-decoration: underline;
  text-underline-offset: 2px;
}

.note {
  margin: 10px 0 0;
  font-size: 12px;
  color: var(--muted);
}

.steps {
  margin: 8px 0 0;
  padding-left: 18px;
}

.steps li {
  margin: 8px 0;
}

.faqList {
  display: grid;
  gap: 8px;
}

details {
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--paper);
  padding: 10px 12px;
  box-shadow: 0 8px 20px rgba(16,46,86,.06);
}

summary {
  cursor: pointer;
  font-weight: 700;
}

details p {
  margin: 8px 0 0;
  color: var(--muted);
}

.ctaSection {
  border: 1px solid #c9dbf8;
  border-radius: var(--radius);
  background:
    radial-gradient(circle at 92% 8%, rgba(34,211,238,.28), transparent 36%),
    linear-gradient(180deg, #ffffff 0%, #edf5ff 100%);
  padding: 20px;
}

.ctaRow {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 12px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 40px;
  padding: 0 14px;
  border-radius: 10px;
  border: 1px solid var(--line);
  background: var(--paper);
  text-decoration: none;
  font-size: 14px;
  font-weight: 700;
  transition: .18s ease;
}

.btn:hover {
  background: #f0f6ff;
  transform: translateY(-1px);
}

.btn-primary {
  border-color: var(--primary);
  background: linear-gradient(135deg, #2563eb, #22d3ee);
  color: var(--primary-ink);
  box-shadow: 0 12px 24px rgba(37,99,235,.24);
}

.btn-primary:hover {
  filter: brightness(1.05);
}

footer {
  margin-top: 26px;
  padding-top: 14px;
  border-top: 1px solid var(--line);
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 8px;
  font-size: 13px;
  color: var(--muted);
}