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

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

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Hiragino Sans',
    'Hiragino Kaku Gothic ProN', 'Noto Sans JP', Meiryo, sans-serif;
  font-size: 16px;
  line-height: 1.75;
  color: #111111;
  background: #ffffff;
}

a {
  color: #111111;
}

a:hover {
  text-decoration: underline;
}

.page {
  max-width: 720px;
  margin: 0 auto;
  padding: 24px 20px 48px;
}

.site-header {
  margin-bottom: 32px;
  padding-bottom: 16px;
  border-bottom: 1px solid #e5e5ea;
}

.site-title {
  margin: 0 0 4px;
  font-size: 1.5rem;
  font-weight: 600;
  letter-spacing: -0.02em;
}

.site-subtitle {
  margin: 0;
  font-size: 0.875rem;
  color: #666666;
}

.content h1 {
  margin: 0 0 24px;
  font-size: 1.375rem;
  font-weight: 600;
  line-height: 1.4;
  letter-spacing: -0.02em;
}

.content h2 {
  margin: 32px 0 12px;
  font-size: 1.0625rem;
  font-weight: 600;
  line-height: 1.5;
}

.content h3 {
  margin: 24px 0 8px;
  font-size: 1rem;
  font-weight: 600;
}

.content p {
  margin: 0 0 16px;
  color: #333333;
}

.content ul,
.content ol {
  margin: 0 0 16px;
  padding-left: 1.4em;
  color: #333333;
}

.content li {
  margin-bottom: 8px;
}

.content li:last-child {
  margin-bottom: 0;
}

.lead {
  color: #666666;
  font-size: 0.9375rem;
}

.page-wide {
  max-width: 920px;
}

.guide {
  color: #222222;
}

.guide-hero {
  margin-bottom: 22px;
  padding: 22px 0 4px;
}

.eyebrow {
  margin: 0 0 8px;
  color: #666666;
  font-size: 0.8125rem;
  font-weight: 600;
}

.quick-links {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0 0 30px;
  padding-bottom: 22px;
  border-bottom: 1px solid #e5e5ea;
}

.quick-links a {
  display: inline-flex;
  align-items: center;
  min-height: 38px;
  padding: 7px 12px;
  border: 1px solid #d8d8de;
  border-radius: 999px;
  color: #222222;
  background: #ffffff;
  font-size: 0.875rem;
  font-weight: 600;
  line-height: 1.4;
  text-decoration: none;
}

.guide-section {
  margin: 0 0 36px;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.feature-item {
  min-height: 124px;
  padding: 16px;
  border: 1px solid #e5e5ea;
  border-radius: 8px;
  background: #f9f9fb;
}

.feature-item h3,
.step-list h3,
.flow-list h3 {
  margin-top: 0;
  color: #111111;
}

.feature-item p {
  margin-bottom: 0;
}

.step-list,
.flow-list {
  list-style: none;
  padding-left: 0;
}

.step-list li,
.flow-list li {
  margin-bottom: 14px;
  padding: 16px;
  border: 1px solid #e5e5ea;
  border-radius: 8px;
  background: #ffffff;
}

.step-list li {
  display: flex;
  gap: 14px;
}

.step-number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex: 0 0 30px;
  width: 30px;
  height: 30px;
  border-radius: 50%;
  color: #ffffff;
  background: #222222;
  font-size: 0.875rem;
  font-weight: 700;
  line-height: 1;
}

.note-box {
  margin: 16px 0 0;
  padding: 13px 14px;
  border: 1px solid #d8d8de;
  border-radius: 8px;
  background: #f2f2f7;
  color: #333333;
  font-size: 0.9375rem;
}

.guide-table {
  width: 100%;
  margin: 12px 0 4px;
  border-collapse: collapse;
  font-size: 0.9375rem;
}

.guide-table th,
.guide-table td {
  padding: 10px;
  border: 1px solid #e5e5ea;
  text-align: left;
  vertical-align: top;
}

.guide-table th {
  color: #111111;
  background: #f9f9fb;
  font-weight: 600;
}

.check-list {
  list-style: none;
  padding-left: 0;
}

.check-list li {
  position: relative;
  padding-left: 1.5em;
}

.check-list li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: #1f7a3f;
  font-weight: 700;
}

.faq-list {
  margin: 0;
}

.faq-list dt {
  margin: 18px 0 6px;
  color: #111111;
  font-weight: 600;
}

.faq-list dt:first-child {
  margin-top: 0;
}

.faq-list dd {
  margin: 0 0 12px;
  color: #333333;
}

.draft-notice {
  margin: 0 0 24px;
  padding: 12px 14px;
  font-size: 0.875rem;
  color: #666666;
  background: #f2f2f7;
  border-radius: 8px;
  border: 1px solid #e5e5ea;
}

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

.nav-list li {
  margin: 0;
  border-bottom: 1px solid #e5e5ea;
}

.nav-list li:first-child {
  border-top: 1px solid #e5e5ea;
}

.nav-list a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 4px;
  text-decoration: none;
  font-weight: 500;
}

.nav-list a::after {
  content: '›';
  color: #8e8e93;
  font-size: 1.25rem;
  line-height: 1;
}

.legal-table {
  width: 100%;
  border-collapse: collapse;
  margin: 0 0 24px;
  font-size: 0.9375rem;
}

.legal-table th,
.legal-table td {
  padding: 12px 10px;
  border: 1px solid #e5e5ea;
  text-align: left;
  vertical-align: top;
}

.legal-table th {
  width: 38%;
  font-weight: 600;
  background: #f9f9fb;
  color: #111111;
}

.legal-table td {
  color: #333333;
}

.site-footer {
  margin-top: 48px;
  padding-top: 16px;
  border-top: 1px solid #e5e5ea;
  font-size: 0.875rem;
  color: #8e8e93;
  text-align: center;
}

.site-footer a {
  color: #666666;
}

.news-article {
  margin-top: 8px;
  padding-top: 20px;
  border-top: 1px solid #e5e5ea;
}

.news-article time {
  display: block;
  font-size: 0.875rem;
  color: #8e8e93;
  margin-bottom: 6px;
}

.news-article h2 {
  margin-top: 0;
}

@media (max-width: 480px) {
  .page {
    padding: 20px 16px 40px;
  }

  .guide-hero {
    padding-top: 8px;
  }

  .quick-links {
    display: grid;
    grid-template-columns: 1fr;
  }

  .quick-links a {
    justify-content: center;
    border-radius: 8px;
  }

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

  .step-list li {
    padding: 14px;
  }

  .guide-table {
    display: block;
    overflow-x: auto;
    white-space: nowrap;
  }

  .legal-table th,
  .legal-table td {
    display: block;
    width: 100%;
  }

  .legal-table th {
    border-bottom: none;
    padding-bottom: 4px;
  }

  .legal-table td {
    border-top: none;
    padding-top: 0;
    padding-bottom: 16px;
  }
}