:root {
  --neo-red: #bd3b3e;
  --neo-red-dark: #9f292d;
  --neo-pink: #cf4a73;
  --ink: #232323;
  --muted: #666;
  --soft: #f7f4f4;
  --line: #e7e0e0;
  --white: #fff;
  --max: 760px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Hiragino Kaku Gothic ProN",
    "Yu Gothic", "Meiryo", sans-serif;
  color: var(--ink);
  background: #fff;
  line-height: 1.8;
}
a { color: inherit; }
img { display: block; max-width: 100%; height: auto; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(255,255,255,.96);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(10px);
}
.header-inner {
  max-width: var(--max);
  margin: 0 auto;
  padding: 12px 18px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
}
.brand {
  font-weight: 800;
  font-size: 20px;
  letter-spacing: .02em;
}
.brand span { color: var(--neo-pink); font-style: italic; }
.header-link {
  font-size: 13px;
  color: var(--neo-red-dark);
  font-weight: 700;
  text-decoration: none;
}

main { overflow: hidden; }
.hero {
  background:
    radial-gradient(circle at 85% 18%, rgba(207,74,115,.16), transparent 35%),
    linear-gradient(135deg, #fff 0%, #fff6f8 100%);
}
.section {
  padding: 54px 20px;
}
.section:nth-of-type(even) { background: var(--soft); }
.container {
  width: min(100%, var(--max));
  margin: 0 auto;
}
.eyebrow {
  margin: 0 0 6px;
  color: var(--neo-red);
  font-weight: 800;
  font-size: 13px;
  letter-spacing: .14em;
}
h1 {
  margin: 4px 0 14px;
  font-size: clamp(32px, 8vw, 48px);
  line-height: 1.22;
  letter-spacing: -.025em;
}
h2 {
  margin: 0 0 20px;
  font-size: 28px;
  line-height: 1.35;
}
h3 { line-height: 1.45; }
.lead {
  font-size: 16px;
  color: #464646;
  margin: 0 0 26px;
}

.cta-grid {
  display: grid;
  gap: 12px;
  margin-top: 26px;
}
.btn {
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 58px;
  padding: 14px 18px;
  border-radius: 12px;
  text-decoration: none;
  font-weight: 800;
  border: 2px solid var(--neo-red);
}
.btn-primary { color: #fff; background: var(--neo-red); }
.btn-secondary { color: var(--neo-red-dark); background: #fff; }
.btn:hover { filter: brightness(.97); }

.cards {
  display: grid;
  gap: 16px;
}
.card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 20px;
  box-shadow: 0 8px 22px rgba(0,0,0,.045);
}
.card h3 { margin: 0 0 8px; }
.card p:last-child { margin-bottom: 0; }

.steps {
  display: grid;
  gap: 24px;
}
.step {
  border-bottom: 1px solid var(--line);
  padding-bottom: 28px;
}
.step:last-child { border-bottom: 0; }
.step-no {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--neo-red);
  color: #fff;
  border-radius: 999px;
  min-width: 48px;
  height: 30px;
  padding: 0 12px;
  font-size: 13px;
  font-weight: 800;
  letter-spacing: .04em;
}
.step h3 {
  margin: 10px 0 8px;
  font-size: 21px;
}
.step-image {
  margin-top: 14px;
  border: 1px solid #ddd;
  border-radius: 14px;
  overflow: hidden;
  background: #f5f5f5;
}
.step-image img { width: 100%; }

.confirmation-mock {
  margin-top: 14px;
  border: 1px solid #ddd;
  border-radius: 14px;
  overflow: hidden;
  background: white;
}
.confirmation-mock .mock-title {
  background: #fafafa;
  padding: 16px;
  text-align: center;
  font-weight: 800;
  border-bottom: 1px solid #eee;
}
.confirmation-mock .mock-body { padding: 18px; }
.mock-row {
  display: grid;
  grid-template-columns: 115px 1fr;
  gap: 10px;
  padding: 10px 0;
  border-bottom: 1px solid #eee;
}
.mock-row:last-child { border-bottom: 0; }
.mock-label { color: #777; font-size: 13px; }
.mock-value { font-weight: 700; }

.notice {
  border-left: 4px solid var(--neo-red);
  background: #fff8f8;
  padding: 16px 18px;
  border-radius: 8px;
}
.notice strong { color: var(--neo-red-dark); }

.faq details {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 12px;
  margin: 10px 0;
  overflow: hidden;
}
.faq summary {
  cursor: pointer;
  padding: 16px;
  font-weight: 800;
}
.faq details p { margin: 0; padding: 0 16px 16px; color: #555; }

.footer-cta {
  background: #2d2d2d;
  color: #fff;
  padding: 42px 20px 94px;
}
.footer-cta h2 { color: #fff; }
.footer-cta .btn-secondary { border-color: #fff; color: #fff; background: transparent; }

.sticky-cta {
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 25;
  background: rgba(255,255,255,.96);
  border-top: 1px solid #ddd;
  padding: 10px 14px calc(10px + env(safe-area-inset-bottom));
}
.sticky-cta .inner {
  max-width: var(--max);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
}
.sticky-cta .btn {
  min-height: 48px;
  padding: 9px 8px;
  font-size: 14px;
  border-radius: 10px;
}

.small { font-size: 13px; color: var(--muted); }
.center { text-align: center; }

@media (min-width: 640px) {
  .cta-grid { grid-template-columns: repeat(3, 1fr); }
  .cards { grid-template-columns: repeat(3, 1fr); }
  .section { padding: 72px 24px; }
}

/* v3 detailed content components */
.hero-copy {
  margin: 0 0 14px;
  font-size: clamp(20px, 5.4vw, 28px);
  line-height: 1.55;
  color: #444;
}
.hero-copy strong { color: var(--neo-red-dark); }
.zone-grid, .trial-cards { display: grid; gap: 18px; margin-top: 26px; }
.zone-card, .trial-card {
  background: #fff; border: 1px solid var(--line); border-radius: 18px; padding: 22px;
  box-shadow: 0 10px 28px rgba(0,0,0,.045);
}
.zone-icon {
  width: 42px; height: 42px; display: grid; place-items: center; border-radius: 50%;
  background: var(--neo-red); color: #fff; font-weight: 900; font-size: 13px;
}
.zone-label { margin: 14px 0 2px; color: var(--neo-red); font-size: 12px; letter-spacing: .12em; font-weight: 900; }
.zone-card h3 { margin: 0 0 12px; font-size: 22px; }
.zone-card h3 span { font-size: 14px; color: #666; font-weight: 700; }
.feature-list { margin: 18px 0 0; padding: 0; list-style: none; }
.feature-list li { padding: 13px 0; border-top: 1px solid #eee; }
.feature-list li:first-child { border-top: 0; }
.reasons { background: #fff8f8 !important; }
.reason-list { display: grid; gap: 14px; }
.reason-item {
  display: grid; grid-template-columns: 50px 1fr; gap: 14px; background: #fff;
  border: 1px solid var(--line); border-radius: 16px; padding: 18px;
}
.reason-number {
  width: 44px; height: 44px; display: grid; place-items: center; border-radius: 50%;
  color: #fff; background: var(--neo-red); font-weight: 900;
}
.reason-item h3 { margin: 0 0 6px; font-size: 18px; }
.reason-item p { margin: 0; color: #555; }
.trial-head { margin-bottom: 10px; }
.trial-tag {
  display: inline-block; padding: 4px 9px; border-radius: 999px; background: #f7e8e8;
  color: var(--neo-red-dark); font-size: 11px; font-weight: 900; letter-spacing: .05em;
}
.trial-head h3 { margin: 8px 0 0; font-size: 22px; }
.specs { margin: 18px 0 0; border-top: 1px solid #eee; }
.specs > div {
  display: grid; grid-template-columns: 120px 1fr; gap: 12px; padding: 11px 0; border-bottom: 1px solid #eee;
}
.specs dt { color: #777; font-size: 13px; }
.specs dd { margin: 0; font-weight: 700; }
.important-note {
  margin: 14px 0 0; padding: 12px; background: #fff4f4; border-radius: 10px;
  color: #8a292c; font-size: 13px; font-weight: 700;
}
.timeline { display: grid; gap: 12px; }
.timeline article {
  display: grid; grid-template-columns: 48px 1fr; gap: 14px; padding: 18px;
  background: #fff; border: 1px solid var(--line); border-radius: 14px;
}
.timeline article > span { color: var(--neo-red); font-weight: 900; font-size: 20px; }
.timeline h3 { margin: 0 0 5px; font-size: 18px; }
.timeline p { margin: 0; color: #555; }
.two-cta { display: grid; gap: 10px; margin-top: 22px; }
.check-list { display: grid; gap: 10px; }
.check-list p {
  margin: 0; padding: 14px 16px; background: #fff; border: 1px solid var(--line); border-radius: 12px;
}
.check-list span { color: var(--neo-red); font-weight: 900; margin-right: 8px; }
.footer-eyebrow { color: #ffc5cf; }
@media (min-width: 720px) {
  .zone-grid, .trial-cards { grid-template-columns: repeat(3, 1fr); }
  .two-cta { grid-template-columns: 1fr 1fr; }
}