:root {
  --blue: #2268d2;
  --blue-deep: #174f9f;
  --teal: #138d96;
  --ink: #0e1729;
  --muted: #596579;
  --line: rgba(20, 57, 91, .12);
  --paper: #f3f7fb;
  --warm: #fbf8f3;
  --surface: rgba(255, 255, 255, .78);
  --max: 1120px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; min-width: 320px; color: var(--ink); background: var(--warm); font-family: -apple-system, BlinkMacSystemFont, "Helvetica Neue", "Noto Sans JP", sans-serif; line-height: 1.75; }
body::before { position: fixed; z-index: -2; inset: 0; content: ""; background: radial-gradient(circle at 83% 7%, rgba(34,104,210,.13), transparent 28%), radial-gradient(circle at 8% 48%, rgba(19,141,150,.1), transparent 25%), linear-gradient(145deg, #fff 0%, var(--paper) 48%, #f8fbfa 100%); }
a { color: inherit; text-decoration: none; }
.site-header, .page-footer { display: flex; width: min(calc(100% - 2rem), var(--max)); margin: 0 auto; padding: 1.25rem 0; align-items: center; justify-content: space-between; }
.site-header { position: relative; z-index: 10; border-bottom: 1px solid var(--line); }
.brand { display: flex; align-items: center; gap: .75rem; font-family: Georgia, "Times New Roman", serif; font-size: 1.15rem; font-weight: 700; }
.brand-icon { width: 42px; height: 42px; border: 1px solid rgba(23,79,159,.1); border-radius: 11px; object-fit: cover; box-shadow: 0 7px 20px rgba(23,79,159,.12); }
.site-nav { display: flex; gap: 1.5rem; color: var(--muted); font-size: .88rem; }
.site-nav a { transition: color .2s ease; }
.site-nav a:hover { color: var(--blue); }
.hero { display: grid; width: min(calc(100% - 2rem), var(--max)); min-height: 700px; margin: 0 auto; padding: 6.5rem 0 7.5rem; align-items: center; grid-template-columns: 1.05fr .95fr; gap: clamp(3rem, 7vw, 7rem); }
.eyebrow { color: var(--teal); font-size: .75rem; font-weight: 760; letter-spacing: .15em; text-transform: uppercase; }
h1, h2, h3 { margin: 0; line-height: 1.16; letter-spacing: -.04em; }
h1 { margin: 1rem 0 1.6rem; font-family: Georgia, "Yu Mincho", serif; font-size: clamp(3rem, 4.5vw, 5.2rem); font-weight: 500; }
h1 span { color: transparent; background: linear-gradient(100deg, var(--teal), var(--blue)); background-clip: text; -webkit-background-clip: text; white-space: nowrap; }
.hero-copy > p:not(.eyebrow) { max-width: 590px; color: var(--muted); font-size: 1.08rem; }
.actions { display: flex; margin-top: 2.2rem; flex-wrap: wrap; gap: .8rem; }
.button { display: inline-flex; min-height: 50px; padding: .75rem 1.2rem; align-items: center; border: 1px solid var(--line); border-radius: 999px; background: rgba(255,255,255,.54); font-weight: 700; transition: transform .2s ease, box-shadow .2s ease; }
.button:hover { transform: translateY(-2px); box-shadow: 0 10px 24px rgba(23,79,159,.1); }
.button-primary { color: #fff; border-color: transparent; background: linear-gradient(105deg, var(--teal), var(--blue)); }
.app-preview { position: relative; display: grid; min-height: 510px; padding: 3.5rem 2rem 2rem; place-items: center; overflow: hidden; border: 1px solid rgba(255,255,255,.78); border-radius: 48px; background: rgba(255,255,255,.5); box-shadow: 0 35px 90px rgba(24,70,116,.14); backdrop-filter: blur(16px); }
.app-icon-large { position: relative; z-index: 2; width: min(245px, 62%); aspect-ratio: 1; border-radius: 23%; object-fit: cover; box-shadow: 0 28px 60px rgba(21,91,162,.2); transform: rotate(-2deg); }
.preview-orbit { position: absolute; border: 1px solid rgba(34,104,210,.18); border-radius: 50%; }
.preview-orbit-one { width: 410px; height: 410px; transform: rotate(18deg); }
.preview-orbit-two { width: 290px; height: 470px; border-color: rgba(19,141,150,.16); transform: rotate(58deg); }
.preview-note { position: relative; z-index: 3; display: grid; width: min(330px, 92%); margin-top: 1rem; padding: 1rem 1.2rem; border: 1px solid var(--line); border-radius: 18px; background: rgba(255,255,255,.86); box-shadow: 0 16px 35px rgba(24,70,116,.09); }
.preview-note span, .preview-note small { color: var(--muted); font-size: .7rem; letter-spacing: .08em; text-transform: uppercase; }
.preview-note strong { font-family: Georgia, "Yu Mincho", serif; font-size: 1.05rem; }
.section { width: min(calc(100% - 2rem), var(--max)); margin: 0 auto; padding: 6.5rem 0; }
.section-heading { max-width: 760px; margin-bottom: 3rem; }
.section-heading h2 { margin-top: .7rem; font-family: Georgia, "Yu Mincho", serif; font-size: clamp(2.2rem, 5vw, 4.2rem); font-weight: 500; }
.feature-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1rem; }
.feature { position: relative; min-height: 330px; padding: 2rem; overflow: hidden; border: 1px solid var(--line); border-radius: 28px; background: var(--surface); box-shadow: 0 18px 45px rgba(24,70,116,.06); }
.feature::after { position: absolute; right: -60px; bottom: -80px; width: 180px; height: 180px; content: ""; border-radius: 50%; background: var(--glow); filter: blur(4px); }
.feature-blue { --glow: rgba(34,104,210,.13); }
.feature-teal { --glow: rgba(19,141,150,.14); }
.feature-ink { --glow: rgba(14,23,41,.1); }
.feature strong { color: var(--blue); font-size: .72rem; letter-spacing: .1em; text-transform: uppercase; }
.feature-symbol { display: grid; width: 54px; height: 54px; margin-bottom: 2.5rem; place-items: center; border: 1px solid var(--line); border-radius: 17px; color: var(--teal); background: #fff; font-size: 1.5rem; }
.feature h3 { margin: .65rem 0 .8rem; font-family: Georgia, "Yu Mincho", serif; font-size: 1.5rem; font-weight: 600; }
.feature p { position: relative; z-index: 1; margin: 0; color: var(--muted); }
.trust-panel { display: grid; padding: clamp(2.2rem, 5vw, 4.2rem); grid-template-columns: 1fr 1fr; gap: 4rem; border-radius: 34px; background: linear-gradient(125deg, #0b1b33, #123c59 58%, #0d666a); color: #fff; box-shadow: 0 28px 70px rgba(14,23,41,.16); }
.trust-panel h2 { font-family: Georgia, "Yu Mincho", serif; font-size: clamp(2rem, 4vw, 3.4rem); font-weight: 500; }
.trust-panel p { color: #c6d3dc; }
.trust-panel .eyebrow { color: #75d8d4; }
.legal-links { display: grid; gap: .7rem; }
.legal-links a { padding: .9rem 0; border-bottom: 1px solid rgba(255,255,255,.18); transition: padding-left .2s ease; }
.legal-links a:hover { padding-left: .5rem; }
.legal-page { width: min(calc(100% - 2rem), 780px); min-height: 70vh; margin: 0 auto; padding: 6rem 0; }
.legal-page h1 { font-family: Georgia, "Yu Mincho", serif; font-size: clamp(2.6rem, 7vw, 4.8rem); font-weight: 500; }
.legal-page h2 { margin: 3rem 0 1rem; font-family: Georgia, "Yu Mincho", serif; font-size: 1.5rem; font-weight: 600; letter-spacing: -.02em; }
.legal-page h3 { margin: 2rem 0 .7rem; font-size: 1.05rem; }
.legal-page p, .legal-page li { color: var(--muted); }
.legal-page a { color: var(--blue-deep); text-decoration: underline; text-underline-offset: 3px; }
.legal-meta { margin: 1rem 0 3rem; color: var(--muted); }
.notice { padding: 1.1rem 1.3rem; border: 1px solid rgba(19,141,150,.15); border-left: 4px solid var(--teal); border-radius: 0 14px 14px 0; background: rgba(225,247,245,.68); color: var(--ink) !important; }
.contact-card { margin-top: 1.5rem; padding: 1.5rem; border: 1px solid var(--line); border-radius: 18px; background: rgba(255,255,255,.68); box-shadow: 0 12px 32px rgba(24,70,116,.05); }
.page-footer { margin-top: 4rem; border-top: 1px solid var(--line); color: var(--muted); font-size: .82rem; }
@media (max-width: 780px) {
  .site-nav { gap: .8rem; font-size: .78rem; }
  .hero { min-height: auto; padding: 4rem 0; grid-template-columns: 1fr; gap: 3rem; }
  h1 span { white-space: normal; }
  .app-preview { min-height: 450px; max-width: 500px; width: 100%; justify-self: center; }
  .feature-grid, .trust-panel { grid-template-columns: 1fr; }
  .feature { min-height: 280px; }
  .section { padding: 4rem 0; }
  .page-footer { align-items: flex-start; flex-direction: column; gap: 1rem; }
}
@media (prefers-reduced-motion: no-preference) {
  .app-icon-large { animation: icon-float 6s ease-in-out infinite; }
  @keyframes icon-float { 0%, 100% { transform: translateY(0) rotate(-2deg); } 50% { transform: translateY(-9px) rotate(1deg); } }
}