* { box-sizing: border-box; margin: 0; padding: 0; }
html { color-scheme: light; }
body {
  font-family: -apple-system, BlinkMacSystemFont, 'Hiragino Sans', 'Noto Sans JP', sans-serif;
  color: #2C2420;
  background: #FDFBF9;
  line-height: 1.8;
  overflow-wrap: anywhere;
}
.container { max-width: 800px; margin: 0 auto; padding: 24px 20px 36px; }
p { font-size: 15px; margin-bottom: 14px; }
h1, h2, h3 { font-weight: 700; text-wrap: pretty; }
h1 { font-size: clamp(28px, 7.5vw, 40px); line-height: 1.45; letter-spacing: -.025em; margin-bottom: 16px; }
h2 { font-size: 21px; line-height: 1.55; }
h3 { font-size: 19px; line-height: 1.6; margin-bottom: 12px; }
a { color: #A8465A; text-decoration-thickness: 1px; text-underline-offset: 3px; }
a:focus-visible, summary:focus-visible { outline: 2px solid #A8465A; outline-offset: 4px; }
section, article { scroll-margin-top: 20px; }
.premium-intro {
  background: radial-gradient(ellipse at 90% 5%, #F5E8CD 0%, transparent 65%);
  border-radius: 24px;
  padding: 24px 20px 20px;
  margin: 0 -4px 36px;
}
.eyebrow {
  display: inline-flex; align-items: center; gap: 6px;
  background: linear-gradient(135deg, #F5E5B8, #F9F1D9, #E8CD91);
  border: 1px solid #DFC796; border-radius: 100px;
  color: #6B4E11; padding: 3px 11px; font-size: 11px; font-weight: 700; letter-spacing: .09em; margin-bottom: 20px;
}
.lead { font-size: 19px; line-height: 1.7; margin-bottom: 14px; }
.intro-note, .section-description { color: #706860; font-size: 14px; }
.page-nav { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 22px; }
.page-nav a {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  min-height: 44px; padding: 8px 12px; border-radius: 100px;
  border: 1px solid #E5DCD0; background: #FFFFFFB3; color: #5C544E;
  font-size: 13px; text-decoration: none;
}
.page-nav a:hover { background: #FFF; }
.section-heading { display: flex; flex-wrap: wrap; align-items: center; gap: 10px; justify-content: space-between; margin-bottom: 18px; }
.platform-label { display: inline-block; font-size: 12px; font-weight: 600; color: #706860; background: #F0ECE7; border-radius: 100px; padding: 3px 10px; }
.feature-grid { display: grid; gap: 16px; }
.feature { background: #FFF; border: 1px solid #EDE8E3; border-radius: 20px; padding: 24px 20px; }
.feature-icon { display: grid; place-items: center; width: 44px; height: 44px; background: #FDF0F2; color: #A8465A; border-radius: 14px; margin-bottom: 16px; }
.feature-icon svg { width: 25px; height: 25px; }
.feature-category { color: #795C2B; font-size: 12px; font-weight: 600; margin-bottom: 6px; }
.feature > p:not(.feature-category):not(.note), .notification-feature > p:not(.note) { color: #5C544E; }
.location { background: #F8F5F1; border-radius: 10px; padding: 12px; font-size: 13px; line-height: 1.8; margin-top: 18px; }
.location dt { color: #706860; font-size: 11px; font-weight: 600; margin-bottom: 2px; }
.location dd { color: #5C544E; }
.note { color: #706860; font-size: 13px; margin: 12px 0 0; }
.iphone-features { background: #FAF4E7; border: 1px solid #ECDFC2; border-radius: 20px; padding: 24px 20px; margin-top: 32px; }
.iphone-label { background: #EFE0BD; color: #6B4E11; margin-bottom: 12px; }
.iphone-features > h2 { margin-bottom: 10px; }
.section-description { margin-bottom: 20px; }
.notification-feature { border-top: 1px solid #E7DCC7; padding: 22px 0; }
.notification-feature:last-child { padding-bottom: 0; }
.notification-feature .location { background: #FFFCF5; }
.free-plan { background: #EEF5F0; border: 1px solid #DCE8DF; border-radius: 20px; padding: 24px 20px; margin-top: 32px; }
.free-plan .feature-category { color: #40664E; }
.free-plan h2 { margin-bottom: 12px; }
.free-plan > p:not(.feature-category) { color: #526258; }
.free-features { list-style: none; display: grid; gap: 12px; margin-top: 20px; }
.free-features li { position: relative; padding-left: 26px; font-size: 14px; }
.free-features li::before { content: '✓'; position: absolute; left: 0; top: 1px; color: #40664E; font-weight: 700; }
.plan-note { margin-top: 36px; }
.plan-note > h2 { margin-bottom: 16px; }
details { border-bottom: 1px solid #EDE8E3; padding: 0 0 4px; }
summary { cursor: pointer; font-size: 14px; font-weight: 600; padding: 16px 0; min-height: 48px; }
details p { color: #706860; font-size: 14px; }
.store-caption { margin: 24px 0 12px; color: #706860; font-size: 13px; }
.store-links { display: flex; flex-wrap: wrap; gap: 10px; }
.store-links a { display: inline-flex; gap: 8px; align-items: center; min-height: 44px; font-size: 13px; border: 1px solid #EDE8E3; border-radius: 10px; padding: 10px 12px; background: #FFF; }
.disclaimer { border-top: 1px solid #EDE8E3; padding-top: 24px; margin-top: 36px; }
.disclaimer p { color: #706860; font-size: 12px; margin-bottom: 0; }
footer { display: flex; gap: 12px 20px; flex-wrap: wrap; margin-top: 18px; font-size: 12px; }
footer a { padding: 8px 0; }
@media (min-width: 640px) {
  .container { padding: 32px 28px 48px; }
  .premium-intro { padding: 32px; margin-left: 0; margin-right: 0; }
  .feature-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .free-features { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}