:root {
  --purple: #6651d9;
  --purple-dark: #3f2e9e;
  --purple-soft: #f0edff;
  --ink: #292638;
  --muted: #777184;
  --line: #e9e7ef;
  --paper: #ffffff;
  --bg: #f8f9fc;
  --green: #4f8b75;
  --shadow: 0 24px 70px rgba(60, 42, 119, 0.12);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  background: var(--bg);
  font-family: "Hiragino Kaku Gothic ProN", "Yu Gothic", "Noto Sans JP", system-ui, sans-serif;
  font-size: 15px;
  line-height: 1.8;
}
a { color: inherit; text-decoration: none; }
a, summary { -webkit-tap-highlight-color: transparent; }
a:focus-visible, summary:focus-visible { outline: 3px solid #aa9af4; outline-offset: 4px; border-radius: 5px; }
svg { display: block; }

.site-header {
  min-height: 84px;
  max-width: 1240px;
  margin: 0 auto;
  padding: 16px 28px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
}
.brand { display: inline-flex; align-items: center; gap: 11px; font-size: 19px; font-weight: 750; letter-spacing: -.6px; }
.brand strong { color: var(--purple); }
.brand small { display: block; margin-top: 1px; color: #9a95a5; font-size: 9px; font-weight: 500; letter-spacing: .08em; }
.brand-icon { width: 38px; height: 38px; display: grid; place-items: center; border-radius: 12px; color: #fff; background: var(--purple); box-shadow: 0 7px 18px rgba(102, 81, 217, .2); flex: 0 0 auto; }
.brand-icon svg { width: 25px; height: 25px; }
.brand-icon path { fill: none; stroke: currentColor; stroke-width: 4; stroke-linejoin: round; }
nav { display: flex; gap: 32px; color: #706a7d; font-size: 12px; font-weight: 600; }
nav a:hover, .footer-links a:hover { color: var(--purple); }

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  min-height: 48px;
  padding: 0 22px;
  color: #fff;
  background: var(--purple);
  border-radius: 10px;
  font-size: 13px;
  font-weight: 700;
  box-shadow: 0 10px 25px rgba(102, 81, 217, .18);
  transition: transform .2s ease, background .2s ease, box-shadow .2s ease;
}
.button:hover { transform: translateY(-2px); background: #5842ca; box-shadow: 0 14px 30px rgba(102, 81, 217, .26); }
.button-small { min-height: 40px; padding: 0 17px; font-size: 11px; box-shadow: none; }
.text-link { color: var(--purple); font-weight: 700; font-size: 12px; }
.text-link:hover { text-decoration: underline; text-underline-offset: 5px; }

main { overflow: hidden; }
.hero {
  max-width: 1184px;
  min-height: 560px;
  margin: 20px auto 0;
  padding: 70px 68px;
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(360px, .95fr);
  align-items: center;
  gap: 40px;
  position: relative;
  overflow: hidden;
  border: 1px solid #e5e0fa;
  border-radius: 28px;
  background: linear-gradient(135deg, #f5f2ff 0%, #eeebfd 55%, #e8e3fa 100%);
}
.hero::before { content: ""; position: absolute; inset: auto -120px -180px auto; width: 420px; height: 420px; border-radius: 50%; background: rgba(255,255,255,.48); }
.hero-copy { position: relative; z-index: 2; }
.eyebrow { margin: 0 0 18px; display: flex; align-items: center; gap: 8px; color: #8174b9; font-size: 9px; font-weight: 800; letter-spacing: .2em; }
.eyebrow span { width: 6px; height: 6px; border-radius: 50%; background: #907ddb; }
h1, h2, h3, p { margin-top: 0; }
h1 { margin-bottom: 22px; font-size: clamp(38px, 4.3vw, 58px); line-height: 1.35; letter-spacing: -.06em; }
h1 em { color: var(--purple); font-style: normal; }
.hero-lead { max-width: 570px; margin-bottom: 27px; color: #746d81; font-size: 14px; line-height: 2.05; }
.hero-actions { display: flex; align-items: center; gap: 22px; }
.hero-note { margin: 14px 0 0; color: #9b93a8; font-size: 10px; }
.hero-visual { min-height: 390px; position: relative; display: grid; place-items: center; }
.orbit { position: absolute; border: 1px solid rgba(117, 94, 203, .2); border-radius: 50%; transform: rotate(-18deg); }
.orbit-one { width: 490px; height: 260px; }
.orbit-two { width: 330px; height: 430px; transform: rotate(27deg); }
.score-card { width: min(360px, 88%); padding: 25px; position: relative; z-index: 2; border: 1px solid rgba(255,255,255,.8); border-radius: 22px; background: rgba(255,255,255,.91); box-shadow: var(--shadow); transform: rotate(-3deg); backdrop-filter: blur(10px); }
.score-card-head, .score-card-foot { display: flex; align-items: center; justify-content: space-between; gap: 12px; color: #9b93aa; font-size: 9px; }
.privacy-chip { padding: 4px 8px; color: var(--green); border-radius: 999px; background: #e9f5f0; font-weight: 700; }
.score-label { margin: 25px 0 3px; color: #857b95; font-size: 11px; }
.score-value { display: block; font-size: 48px; line-height: 1.2; letter-spacing: -.04em; }
.score-value small { color: #aaa2b6; font-size: 14px; font-weight: 500; }
.bars { height: 110px; margin: 18px 0 14px; padding: 0 5px; display: flex; align-items: flex-end; gap: 10px; border-bottom: 1px solid #e8e3f1; }
.bars i { width: 100%; height: 33%; border-radius: 6px 6px 0 0; background: #e3dcfa; }
.bars i:nth-child(2) { height: 48%; background: #d3c8f6; }
.bars i:nth-child(3) { height: 43%; background: #c0b1f0; }
.bars i:nth-child(4) { height: 68%; background: #a590e8; }
.bars i:nth-child(5) { height: 84%; background: #866fdf; }
.bars i:nth-child(6) { height: 94%; background: var(--purple); }
.float-card { position: absolute; z-index: 3; display: flex; align-items: center; gap: 8px; padding: 12px 14px; border: 1px solid rgba(255,255,255,.85); border-radius: 11px; color: #786c91; background: rgba(255,255,255,.88); box-shadow: 0 12px 30px rgba(65, 44, 121, .09); font-size: 9px; backdrop-filter: blur(9px); }
.float-top { top: 36px; right: -5px; transform: rotate(4deg); }
.float-bottom { bottom: 31px; left: -6px; display: grid; gap: 2px; transform: rotate(2deg); }
.float-bottom strong { color: #594c70; font-size: 10px; }
.dot { width: 6px; height: 6px; border-radius: 50%; background: #74ab95; }

.trust-strip { max-width: 1120px; margin: 0 auto; padding: 34px 30px; display: grid; grid-template-columns: repeat(4, 1fr); gap: 0; border-bottom: 1px solid var(--line); }
.trust-strip div { padding: 0 25px; border-right: 1px solid var(--line); }
.trust-strip div:last-child { border-right: 0; }
.trust-strip strong, .trust-strip span { display: block; }
.trust-strip strong { margin-bottom: 3px; font-size: 12px; }
.trust-strip span { color: #9a94a4; font-size: 9px; }

.section { max-width: 1120px; margin: 0 auto; padding: 118px 28px; }
.split-section { display: grid; grid-template-columns: .74fr 1.26fr; gap: 80px; align-items: start; }
.section-intro h2, .section-heading h2 { margin-bottom: 20px; font-size: clamp(30px, 4vw, 46px); line-height: 1.45; letter-spacing: -.05em; }
.section-intro > p:last-of-type, .section-heading > p { color: var(--muted); line-height: 2.15; }
.feature-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.feature-card { min-height: 230px; padding: 28px; border: 1px solid var(--line); border-radius: 18px; background: var(--paper); }
.feature-card.feature-main { grid-column: span 2; min-height: 330px; background: #f4f1ff; border-color: #e8e2fb; }
.card-number { display: inline-grid; place-items: center; width: 30px; height: 30px; margin-bottom: 42px; border-radius: 50%; color: #7564c3; background: #ebe5ff; font-size: 9px; font-weight: 800; }
.feature-main .card-number { background: #fff; }
.feature-card h3 { margin-bottom: 12px; font-size: 20px; }
.feature-card p { color: #85808c; font-size: 12px; line-height: 2; }
.metric-preview { margin-top: 30px; display: grid; grid-template-columns: repeat(4, 1fr); gap: 8px; }
.metric-preview span { padding: 14px; border-radius: 12px; background: rgba(255,255,255,.84); }
.metric-preview small, .metric-preview strong { display: block; }
.metric-preview small { margin-bottom: 4px; color: #9990aa; font-size: 8px; }
.metric-preview strong { color: #4f426b; font-size: 22px; }

.privacy-section { display: grid; grid-template-columns: 1fr 1fr; gap: 90px; align-items: center; }
.privacy-visual { padding: 38px; border: 1px solid #e4e1ea; border-radius: 24px; background: #fff; box-shadow: 0 25px 60px rgba(42, 35, 70, .07); }
.shield { width: 74px; height: 74px; margin-bottom: 28px; display: grid; place-items: center; color: var(--purple); border-radius: 22px; background: var(--purple-soft); }
.shield svg { width: 46px; height: 46px; }
.shield path { fill: none; stroke: currentColor; stroke-width: 3; stroke-linecap: round; stroke-linejoin: round; }
.privacy-row { padding: 18px 0; display: flex; align-items: center; justify-content: space-between; gap: 20px; border-top: 1px solid #efedf3; font-size: 11px; }
.privacy-row span { color: #908997; }
.privacy-row strong { color: #514a5d; font-size: 10px; }
.privacy-section .text-link { display: inline-block; margin-top: 8px; }

.section-heading { margin-bottom: 52px; display: grid; grid-template-columns: 1fr .7fr; align-items: end; gap: 80px; }
.section-heading h2 { margin-bottom: 0; }
.section-heading > p { margin-bottom: 5px; font-size: 12px; }
.steps { margin: 0; padding: 0; display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; list-style: none; }
.steps li { min-height: 310px; padding: 30px; display: flex; flex-direction: column; justify-content: space-between; border: 1px solid var(--line); border-radius: 18px; background: #fff; }
.steps li > span { display: grid; place-items: center; width: 40px; height: 40px; color: #fff; border-radius: 12px; background: var(--purple); font-weight: 800; }
.steps small { color: #9a8fd0; font-size: 8px; font-weight: 800; letter-spacing: .16em; }
.steps h3 { margin: 8px 0 12px; font-size: 20px; }
.steps p { margin-bottom: 0; color: #88828f; font-size: 11px; line-height: 2; }

.faq-section { display: grid; grid-template-columns: .65fr 1.35fr; gap: 90px; }
.faq-list { border-top: 1px solid var(--line); }
.faq-list details { border-bottom: 1px solid var(--line); }
.faq-list summary { padding: 25px 4px; display: flex; align-items: center; justify-content: space-between; gap: 20px; cursor: pointer; font-size: 13px; font-weight: 700; list-style: none; }
.faq-list summary::-webkit-details-marker { display: none; }
.faq-list summary span { color: var(--purple); font-size: 19px; font-weight: 400; transition: transform .2s ease; }
.faq-list details[open] summary span { transform: rotate(45deg); }
.faq-list details p { margin: -7px 45px 25px 4px; color: #837d89; font-size: 11px; line-height: 2.1; }

.cta-section { max-width: 1184px; margin: 20px auto 0; padding: 90px 30px; text-align: center; color: #fff; border-radius: 28px; background: linear-gradient(135deg, #4a37ac, #725cde); }
.cta-section .eyebrow { justify-content: center; color: #cec6f5; }
.cta-section .eyebrow span { background: #ddd7fa; }
.cta-section h2 { margin-bottom: 15px; font-size: clamp(38px, 5vw, 58px); line-height: 1.35; letter-spacing: -.05em; }
.cta-section > p:not(.eyebrow) { margin-bottom: 28px; color: #d9d4f0; font-size: 12px; }
.button-light { color: #4c37ae; background: #fff; box-shadow: none; }
.button-light:hover { color: #3f2c9f; background: #f8f6ff; }

footer { max-width: 1184px; margin: 0 auto; padding: 52px 20px 44px; display: grid; grid-template-columns: 1fr auto 1fr; align-items: center; gap: 30px; color: #9993a1; font-size: 9px; }
.footer-brand { display: flex; align-items: center; gap: 10px; }
.footer-brand .brand-icon { width: 34px; height: 34px; border-radius: 10px; }
.footer-brand .brand-icon svg { width: 22px; height: 22px; }
.footer-brand strong, .footer-brand small { display: block; }
.footer-brand strong { color: #5d5668; font-size: 12px; }
.footer-brand small { font-size: 8px; }
.footer-links { display: flex; flex-wrap: wrap; justify-content: center; gap: 18px; }
footer > p { margin: 0; text-align: right; line-height: 1.9; }

.legal-main { max-width: 900px; margin: 0 auto; padding: 55px 24px 100px; }
.legal-back { display: inline-block; margin-bottom: 25px; color: var(--purple); font-size: 12px; font-weight: 700; }
.legal-card { padding: clamp(30px, 7vw, 72px); border: 1px solid var(--line); border-radius: 24px; background: #fff; box-shadow: 0 20px 60px rgba(45, 36, 76, .06); }
.legal-card h1 { margin-bottom: 16px; font-size: clamp(34px, 6vw, 52px); }
.legal-lead { margin-bottom: 48px; color: #766f7d; }
.legal-card section { margin-top: 34px; padding-top: 30px; border-top: 1px solid #efedf2; }
.legal-card h2 { margin-bottom: 12px; font-size: 18px; }
.legal-card section p, .legal-card section li { color: #746e7b; font-size: 12px; line-height: 2.1; }
.legal-card ul { padding-left: 1.3em; }
.legal-card a { color: var(--purple); text-decoration: underline; text-underline-offset: 3px; }
.legal-date { margin: 46px 0 0; color: #9d97a3; font-size: 10px; }
.legal-links { margin-top: 28px; display: flex; flex-wrap: wrap; gap: 22px; font-size: 11px; font-weight: 700; }

@media (max-width: 900px) {
  nav { display: none; }
  .hero { margin: 10px 16px 0; padding: 55px 36px; grid-template-columns: 1fr; }
  .hero-visual { min-height: 350px; }
  .trust-strip { grid-template-columns: 1fr 1fr; gap: 24px 0; }
  .trust-strip div:nth-child(2) { border-right: 0; }
  .split-section, .privacy-section, .faq-section { grid-template-columns: 1fr; gap: 45px; }
  .section-heading { grid-template-columns: 1fr; gap: 20px; }
  .steps { grid-template-columns: 1fr; }
  .steps li { min-height: 230px; }
  footer { grid-template-columns: 1fr; text-align: center; }
  .footer-brand, .footer-links { justify-content: center; }
  footer > p { text-align: center; }
}

@media (max-width: 580px) {
  body { font-size: 14px; }
  .site-header { min-height: 72px; padding: 12px 17px; }
  .site-header .brand small { display: none; }
  .site-header .button { min-height: 38px; padding: 0 12px; font-size: 10px; }
  .brand { font-size: 16px; }
  .brand-icon { width: 34px; height: 34px; border-radius: 10px; }
  .hero { min-height: auto; padding: 43px 23px 35px; border-radius: 20px; }
  h1 { font-size: 38px; }
  .hero-lead { font-size: 12px; }
  .hero-actions { align-items: stretch; flex-direction: column; }
  .hero-actions .text-link { text-align: center; }
  .hero-visual { min-height: 300px; }
  .score-card { width: 94%; padding: 20px; }
  .score-value { font-size: 40px; }
  .bars { height: 85px; }
  .float-top { right: -13px; top: 17px; }
  .float-bottom { left: -10px; bottom: 10px; }
  .trust-strip { margin: 0 16px; padding: 32px 0; }
  .trust-strip div { padding: 0 13px; }
  .section { padding: 82px 20px; }
  .section-intro h2, .section-heading h2 { font-size: 32px; }
  .feature-grid { grid-template-columns: 1fr; }
  .feature-card.feature-main { grid-column: auto; }
  .metric-preview { grid-template-columns: 1fr 1fr; }
  .privacy-visual { padding: 25px; }
  .privacy-row { align-items: flex-start; flex-direction: column; gap: 4px; }
  .faq-list summary { font-size: 12px; }
  .faq-list details p { margin-right: 4px; }
  .cta-section { margin: 0 16px; padding: 70px 22px; border-radius: 20px; }
  .cta-section h2 { font-size: 38px; }
  .legal-main { padding: 35px 16px 70px; }
  .legal-card { border-radius: 18px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition-duration: .01ms !important; animation-duration: .01ms !important; }
}