:root {
  --night: #091321;
  --ink: #14213d;
  --muted: #60718d;
  --paper: #f7faff;
  --line: #dce5f2;
  --blue: #2769e8;
  --sky: #d9eaff;
  --mint: #ccf6e6;
  --white: #ffffff;
  --shadow: 0 18px 52px rgba(12, 39, 87, .12);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: -apple-system, BlinkMacSystemFont, "Hiragino Sans", "Yu Gothic", "Noto Sans JP", sans-serif;
  line-height: 1.75;
}
a { color: inherit; text-underline-offset: .18em; }
.container { width: min(1120px, calc(100% - 40px)); margin: 0 auto; }
.site-header {
  position: sticky; top: 0; z-index: 5; border-bottom: 1px solid rgba(220, 229, 242, .85);
  background: rgba(247, 250, 255, .9); backdrop-filter: blur(16px);
}
.header-inner { min-height: 68px; display: flex; align-items: center; justify-content: space-between; gap: 20px; }
.brand { display: inline-flex; align-items: center; gap: 10px; color: var(--night); font-weight: 800; text-decoration: none; }
.brand img { width: 34px; height: 34px; border-radius: 9px; }
.header-link { color: var(--muted); font-size: .9rem; font-weight: 700; text-decoration: none; }
.hero { position: relative; overflow: hidden; padding: 92px 0 76px; background: linear-gradient(125deg, #f4f9ff 0%, #e5f0ff 52%, #d7faed 100%); }
.hero::after { content: ""; position: absolute; width: 420px; height: 420px; border-radius: 50%; top: -200px; right: -100px; background: rgba(255, 255, 255, .55); }
.hero-grid { position: relative; z-index: 1; display: grid; grid-template-columns: 1.1fr .9fr; align-items: center; gap: 58px; }
.eyebrow { display: inline-flex; padding: 5px 12px; border-radius: 99px; color: #1750ba; background: rgba(255,255,255,.75); font-size: .82rem; font-weight: 800; letter-spacing: .04em; }
h1, h2, h3, p { margin-top: 0; }
h1 { max-width: 720px; margin: 17px 0; color: var(--night); font-size: clamp(2.35rem, 5vw, 4.35rem); letter-spacing: -.055em; line-height: 1.2; }
h2 { color: var(--night); font-size: clamp(1.65rem, 3.4vw, 2.45rem); line-height: 1.35; letter-spacing: -.035em; }
h3 { margin-bottom: 8px; color: var(--night); font-size: 1.1rem; }
.hero-text { max-width: 620px; color: #3c526f; font-size: 1.05rem; }
.store-note { display: inline-flex; margin-top: 18px; padding: 11px 16px; border: 1px solid #c8d8ee; border-radius: 10px; background: rgba(255,255,255,.72); color: #405674; font-size: .9rem; font-weight: 700; }
.phone { width: min(290px, 100%); margin: 0 auto; padding: 11px; border: 7px solid #162846; border-radius: 39px; background: #162846; box-shadow: 0 24px 60px rgba(20, 54, 105, .26); }
.phone-screen { min-height: 486px; padding: 24px 17px; border-radius: 25px; background: #0d1a2d; color: white; }
.phone-top { display: flex; align-items: center; gap: 9px; font-size: .83rem; font-weight: 800; }
.phone-top img { width: 27px; height: 27px; border-radius: 7px; }
.phone-title { margin: 34px 0 19px; font-size: 1.35rem; font-weight: 800; }
.game-card { margin-top: 12px; padding: 14px; border: 1px solid rgba(210,228,255,.15); border-radius: 14px; background: rgba(255,255,255,.08); }
.game-row { display: flex; align-items: center; justify-content: space-between; gap: 10px; font-size: .9rem; font-weight: 700; }
.game-sub { margin-top: 6px; color: #9cb4d5; font-size: .73rem; }
.state { color: #9ef0cf; font-size: .75rem; }
.section { padding: 88px 0; }
.section-intro { max-width: 670px; margin-bottom: 38px; }
.section-intro p { color: var(--muted); }
.feature-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.feature { padding: 27px; border: 1px solid var(--line); border-radius: 18px; background: var(--white); box-shadow: 0 8px 20px rgba(21, 57, 110, .04); }
.feature-icon { display: grid; width: 43px; height: 43px; margin-bottom: 19px; place-items: center; border-radius: 13px; color: #1457c3; background: var(--sky); font-size: 1.25rem; font-weight: 900; }
.feature p, .notice p, .step p { margin-bottom: 0; color: var(--muted); font-size: .95rem; }
.steps { background: var(--night); color: #eff6ff; }
.steps h2 { color: white; }
.steps .section-intro p { color: #b7c9e5; }
.step-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.step { padding: 25px; border: 1px solid rgba(190,215,252,.22); border-radius: 18px; background: rgba(255,255,255,.05); }
.step-num { color: #8db8ff; font-size: .82rem; font-weight: 800; letter-spacing: .1em; }
.step h3 { margin-top: 12px; color: white; }
.step p { color: #b7c9e5; }
.notice { max-width: 900px; margin: 0 auto; padding: 29px 32px; border-left: 4px solid var(--blue); border-radius: 0 16px 16px 0; background: var(--white); box-shadow: var(--shadow); }
.notice h2 { margin-bottom: 9px; font-size: 1.35rem; }
.pricing { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.pricing-card { padding: 32px; border-radius: 20px; background: var(--white); box-shadow: var(--shadow); }
.pricing-card.highlight { color: #eff6ff; background: linear-gradient(135deg, #1748a9, #2976e6); }
.pricing-card h2 { margin-bottom: 8px; }
.pricing-card.highlight h2 { color: white; }
.pricing-card p { margin-bottom: 0; color: var(--muted); }
.pricing-card.highlight p { color: #d8e7ff; }
.footer { padding: 40px 0 31px; color: #bccbe0; background: #07101c; }
.footer-grid { display: flex; align-items: flex-start; justify-content: space-between; gap: 28px; }
.footer .brand { color: white; }
.footer nav { display: flex; flex-wrap: wrap; justify-content: flex-end; gap: 10px 20px; font-size: .86rem; }
.footer nav a { color: #c8d6e8; }
.copyright { margin: 30px 0 0; font-size: .78rem; }
.legal-main { padding: 74px 0 88px; }
.legal-layout { max-width: 780px; }
.legal-lead { color: var(--muted); }
.legal-card { margin-top: 20px; padding: 26px 29px; border: 1px solid var(--line); border-radius: 17px; background: white; }
.legal-card p:last-child { margin-bottom: 0; }
.legal-card ul { padding-left: 1.35em; }
.support-box { padding: 26px 29px; border-radius: 17px; background: #e6f0ff; }
@media (max-width: 760px) {
  .container { width: min(100% - 32px, 1120px); }
  .hero { padding: 62px 0 58px; }
  .hero-grid, .pricing { grid-template-columns: 1fr; gap: 38px; }
  .phone { width: 260px; }
  .phone-screen { min-height: 430px; }
  .feature-grid, .step-grid { grid-template-columns: 1fr; }
  .section { padding: 62px 0; }
  .footer-grid { flex-direction: column; }
  .footer nav { justify-content: flex-start; }
  .legal-main { padding: 48px 0 64px; }
}