:root {
  --bg: #f5f8fc;
  --surface: #ffffff;
  --surface-soft: #edf5ff;
  --text: #11233b;
  --muted: #607086;
  --line: rgba(17, 35, 59, 0.11);
  --primary: #2568c9;
  --primary-dark: #1f5fbf;
  --mint: #62c996;
  --orange: #f1a35f;
  --shadow: 0 24px 60px rgba(42, 78, 124, 0.15);
  --container: 1120px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  color: var(--text);
  font-family: "Hiragino Sans", "Noto Sans JP", "Yu Gothic", -apple-system, BlinkMacSystemFont, sans-serif;
  line-height: 1.75;
  background:
    radial-gradient(circle at 7% 1%, rgba(119, 181, 255, 0.25), transparent 27%),
    radial-gradient(circle at 92% 7%, rgba(98, 201, 150, 0.2), transparent 25%),
    linear-gradient(180deg, #fbfdff 0%, var(--bg) 100%);
}

a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }
h1, h2, h3, p, figure, ul { margin: 0; }

.container { width: min(calc(100% - 40px), var(--container)); margin: 0 auto; }
.narrow { width: min(calc(100% - 40px), 820px); }

.site-header {
  position: sticky;
  z-index: 10;
  top: 0;
  background: rgba(251, 253, 255, 0.84);
  border-bottom: 1px solid rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(16px);
}

.nav, .nav-links, .hero-grid, .cta-row, .support-row, .footer-row {
  display: flex;
  align-items: center;
}

.nav { min-height: 74px; justify-content: space-between; gap: 24px; }
.brand { display: inline-flex; align-items: center; gap: 11px; font-weight: 900; }
.brand img { width: 36px; height: 36px; border-radius: 9px; box-shadow: 0 5px 12px rgba(31, 95, 191, 0.2); }
.nav-links { gap: 20px; color: var(--muted); font-size: 0.92rem; }
.nav-links a:hover, .footer-links a:hover { color: var(--primary-dark); }

.hero { padding: 72px 0 64px; overflow: hidden; }
.hero-grid { display: grid; grid-template-columns: 1fr 0.9fr; gap: 54px; }
.app-mark { width: 86px; height: 86px; margin-bottom: 22px; border-radius: 22px; box-shadow: 0 18px 36px rgba(31, 95, 191, 0.22); }
.eyebrow, .policy-date { color: var(--primary-dark); font-size: 0.76rem; font-weight: 900; letter-spacing: 0.1em; text-transform: uppercase; }
h1 { margin-top: 10px; font-size: clamp(2.7rem, 6vw, 5.4rem); line-height: 1.02; letter-spacing: -0.04em; }
h2 { font-size: clamp(1.9rem, 3.5vw, 3.1rem); line-height: 1.18; letter-spacing: -0.025em; }
h3 { font-size: 1.18rem; line-height: 1.4; }
.hero-tagline { margin-top: 16px; font-size: clamp(1.25rem, 2.2vw, 1.6rem); font-weight: 900; }
.lead { margin-top: 14px; color: var(--muted); font-size: 1.04rem; }
.cta-row { flex-wrap: wrap; gap: 13px; margin-top: 28px; }

.button {
  display: inline-flex;
  min-height: 48px;
  align-items: center;
  justify-content: center;
  padding: 0 20px;
  border: 1px solid var(--line);
  border-radius: 999px;
  font-weight: 900;
  background: rgba(255, 255, 255, 0.82);
}
.button.primary { color: #fff; border-color: transparent; background: linear-gradient(135deg, var(--primary), #66a4ff); box-shadow: 0 15px 30px rgba(52, 126, 234, 0.25); }
.button:focus-visible, a:focus-visible { outline: 3px solid rgba(52, 126, 234, 0.35); outline-offset: 3px; }

.phone-stage { position: relative; min-height: 650px; }
.phone { position: absolute; width: 53%; padding: 10px; background: rgba(255,255,255,0.78); border: 1px solid rgba(255,255,255,0.92); border-radius: 37px; box-shadow: var(--shadow); }
.phone img { border-radius: 28px; }
.phone.back { left: 1%; bottom: 45px; transform: rotate(-6deg); }
.phone.front { right: 2%; top: 0; transform: rotate(5deg); }

.section { padding: 76px 0; }
.section.alt { background: linear-gradient(180deg, rgba(237,245,255,0.82), rgba(255,255,255,0.32)); }
.section-heading { max-width: 760px; margin-bottom: 30px; }
.section-copy { margin-top: 14px; color: var(--muted); }
.feature-grid, .gallery { display: grid; gap: 18px; }
.feature-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.feature-card, .shot-card, .support-row, .policy-card { background: rgba(255,255,255,0.84); border: 1px solid rgba(255,255,255,0.92); box-shadow: var(--shadow); backdrop-filter: blur(10px); }
.feature-card { padding: 24px; border-radius: 22px; }
.feature-card p { margin-top: 9px; color: var(--muted); }
.feature-icon { display: grid; width: 38px; height: 38px; margin-bottom: 16px; place-items: center; color: var(--primary-dark); font-weight: 900; background: var(--surface-soft); border-radius: 12px; }

.gallery { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.shot-card { padding: 12px; border-radius: 30px; }
.shot-card img { width: 100%; aspect-ratio: 1320 / 2868; object-fit: cover; background: #e7edf5; border-radius: 21px; }
.shot-card figcaption { padding: 12px 7px 5px; font-size: 0.93rem; font-weight: 800; }

.support-row { justify-content: space-between; gap: 28px; padding: 34px; border-radius: 28px; }
.contact-line { margin-top: 12px; font-weight: 800; }
.contact-line a { color: var(--primary-dark); text-decoration: underline; text-decoration-thickness: 1px; text-underline-offset: 3px; }
.disclaimer { margin-top: 18px; color: var(--muted); font-size: 0.9rem; }

.policy-main { padding-bottom: 28px; }
.policy-hero { padding: 72px 0 28px; }
.policy-hero h1 { font-size: clamp(2.35rem, 5vw, 4.5rem); }
.policy-date { margin-top: 22px; }
.policy-card { padding: 36px; border-radius: 28px; }
.policy-card h2 { margin-top: 30px; font-size: 1.4rem; letter-spacing: 0; }
.policy-card h2:first-child { margin-top: 0; }
.policy-card p { margin-top: 10px; color: var(--muted); }
.policy-list { display: grid; gap: 9px; padding: 0; margin-top: 12px; color: var(--muted); list-style: none; }
.policy-list li { position: relative; padding-left: 19px; }
.policy-list li::before { position: absolute; top: 0.72em; left: 0; width: 8px; height: 8px; content: ""; background: linear-gradient(135deg, var(--primary), var(--mint)); border-radius: 50%; }

.site-footer { padding: 28px 0 40px; }
.footer-row { justify-content: space-between; gap: 18px; padding-top: 24px; color: var(--muted); border-top: 1px solid var(--line); }
.footer-links { display: flex; flex-wrap: wrap; gap: 18px; }

@media (max-width: 920px) {
  .hero-grid { grid-template-columns: 1fr 1fr; gap: 28px; }
  .feature-grid { grid-template-columns: 1fr; }
  .phone-stage { min-height: 570px; }
}

@media (max-width: 720px) {
  .nav { min-height: auto; align-items: flex-start; flex-direction: column; padding: 15px 0; }
  .nav-links { flex-wrap: wrap; gap: 11px 16px; }
  .hero { padding: 46px 0 54px; }
  .hero-grid { grid-template-columns: 1fr; }
  .phone-stage { min-height: 510px; margin-top: 12px; }
  .phone { width: 61%; }
  .section, .policy-hero { padding: 54px 0; }
  .gallery { grid-template-columns: 1fr; }
  .support-row, .footer-row { align-items: flex-start; flex-direction: column; }
  .policy-card { padding: 25px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
}