@import url('https://fonts.googleapis.com/css2?family=Noto+Sans+JP:wght@400;700&display=swap');

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

body {
  font-family: 'Noto Sans JP', 'Hiragino Sans', sans-serif;
  font-size: 16px;
  line-height: 1.8;
  color: #1F2937;
  background: #F9FAFB;
}

a { color: #2563EB; text-decoration: none; }
a:hover { text-decoration: underline; }

/* Header */
.site-header {
  background: #fff;
  border-bottom: 2px solid #2563EB;
  padding: 20px 0;
  text-align: center;
}
.site-header h1 { font-size: 28px; color: #2563EB; }
.site-header p { font-size: 14px; color: #6B7280; margin-top: 4px; }
.site-header a { color: inherit; text-decoration: none; }

/* Container */
.container { max-width: 960px; margin: 0 auto; padding: 0 20px; }

/* Card Grid */
.card-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
  margin: 40px 0;
}
.card {
  background: #fff;
  border-radius: 12px;
  padding: 28px;
  box-shadow: 0 1px 3px rgba(0,0,0,0.08);
  transition: box-shadow 0.2s;
}
.card:hover { box-shadow: 0 4px 12px rgba(0,0,0,0.12); }
.card .category {
  display: inline-block;
  background: #EFF6FF;
  color: #2563EB;
  font-size: 12px;
  font-weight: 700;
  padding: 4px 10px;
  border-radius: 20px;
  margin-bottom: 10px;
}
.card h2 { font-size: 20px; margin-bottom: 8px; }
.card p { font-size: 14px; color: #6B7280; margin-bottom: 16px; }
.card .btn {
  display: inline-block;
  background: #2563EB;
  color: #fff;
  padding: 8px 20px;
  border-radius: 8px;
  font-size: 14px;
  font-weight: 700;
}
.card .btn:hover { background: #1D4ED8; text-decoration: none; }

/* Article */
.article { max-width: 700px; margin: 40px auto; }
.article .pr-badge {
  display: inline-block;
  background: #FEF3C7;
  color: #92400E;
  font-size: 12px;
  font-weight: 700;
  padding: 4px 12px;
  border-radius: 20px;
  margin-bottom: 16px;
}
.article h1 { font-size: 28px; margin-bottom: 8px; }
.article .meta { font-size: 13px; color: #9CA3AF; margin-bottom: 32px; }
.article h2 {
  font-size: 22px;
  margin-top: 36px;
  margin-bottom: 16px;
  padding-bottom: 8px;
  border-bottom: 2px solid #E5E7EB;
}
.article p { margin-bottom: 16px; }
.article ul, .article ol { margin: 0 0 16px 24px; }
.article li { margin-bottom: 8px; }
.article .price-table {
  width: 100%;
  border-collapse: collapse;
  margin: 16px 0;
}
.article .price-table th, .article .price-table td {
  border: 1px solid #E5E7EB;
  padding: 10px 14px;
  text-align: left;
  font-size: 14px;
}
.article .price-table th { background: #F3F4F6; font-weight: 700; }
.article .merit { color: #059669; }
.article .demerit { color: #DC2626; }
.article .cta-box {
  background: #F0FDF4;
  border: 2px solid #10B981;
  border-radius: 12px;
  padding: 24px;
  text-align: center;
  margin: 32px 0;
}
.article .cta-btn {
  display: inline-block;
  background: #10B981;
  color: #fff;
  padding: 12px 32px;
  border-radius: 8px;
  font-size: 16px;
  font-weight: 700;
  margin-top: 12px;
}
.article .cta-btn:hover { background: #059669; text-decoration: none; }
.article .disclosure {
  background: #F9FAFB;
  border: 1px solid #E5E7EB;
  border-radius: 8px;
  padding: 16px;
  font-size: 13px;
  color: #6B7280;
  margin-top: 32px;
}
.back-link { display: inline-block; margin-bottom: 24px; font-size: 14px; }

/* Footer */
.site-footer {
  background: #1F2937;
  color: #D1D5DB;
  text-align: center;
  padding: 24px 0;
  margin-top: 60px;
  font-size: 13px;
}
.site-footer p { margin-bottom: 4px; }

/* Responsive */
@media (max-width: 768px) {
  .card-grid { grid-template-columns: 1fr; }
  .article h1 { font-size: 22px; }
}