:root{color-scheme:dark;--bg:#0a0911;--text:#f5f1ff;--muted:#aaa3bb;--purple:#b19bff}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,'Hiragino Sans','Noto Sans JP',sans-serif;line-height:1.8}a{color:inherit;text-decoration:none}header,main,footer{max-width:1140px;margin:auto;padding:0 40px}header{height:100px;display:flex;align-items:center;justify-content:space-between;font-size:13px}.logo{font-size:20px;font-weight:800;letter-spacing:2px}.logo span{display:block;letter-spacing:0;font-size:10px;font-weight:400;color:var(--muted)}section{padding:90px 0;border-bottom:1px solid #ffffff13}.hero{display:grid;grid-template-columns:1.15fr 1fr;align-items:center;min-height:700px;gap:60px;padding-top:40px}.hero>*{min-width:0}.eyebrow{font-size:11px;letter-spacing:3px;color:var(--purple);font-weight:700}h1{font-size:clamp(40px,5.3vw,65px);line-height:1.35;letter-spacing:-2px;margin:24px 0}h2{font-size:clamp(26px,3vw,36px);line-height:1.5;margin:20px 0 36px}h3{font-size:18px}.lead{font-size:17px;color:#c8c0d9;line-height:2.2}.lead .brand{white-space:nowrap}.button{display:flex;justify-content:space-between;max-width:340px;gap:20px;padding:16px 22px;border-radius:14px;background:linear-gradient(100deg,#7861d6,#9a59cc);font-size:14px;font-weight:700;margin-top:30px}.note{font-size:12px;color:var(--muted);line-height:1.9}.visual{background:radial-gradient(ellipse,#59377555,transparent 70%);padding:20px}.phone{width:300px;max-width:100%;border-radius:34px;border:1px solid #4c3f65;background:linear-gradient(160deg,#171125,#0e0d16);padding:28px 23px;box-shadow:0 35px 70px #0008;margin:auto;transform:rotate(3deg)}.phone-logo{font-weight:800;letter-spacing:2px;font-size:18px}.phone-logo span{display:block;letter-spacing:0;font-size:10px;color:var(--muted)}.small{font-size:11px;color:var(--muted)}.practice{border-radius:22px;background:linear-gradient(120deg,#493473,#211931);padding:22px 18px;margin:26px 0}.practice span{font-size:10px;color:#cab8f5}.practice h2{font-size:19px;margin:9px 0}.practice p{font-size:12px;color:#c3b5d7}.play{font-size:24px;color:#d3bbff;display:flex;justify-content:space-between;align-items:center}.lesson{font-size:12px;display:flex;gap:10px;align-items:center;border:1px solid #ffffff13;border-radius:12px;padding:11px;margin-bottom:8px}.lesson b{color:#b39be5;font-size:10px}.lesson span{margin-left:auto;color:var(--muted);font-size:10px}.phone h3{font-size:12px;color:#c3b5da}.voice{margin:20px 0 10px;border-top:1px solid #ffffff13;padding-top:18px;font-size:11px;color:var(--muted)}.voice span{display:block;font-size:12px;color:#e7dff5}.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:32px}.cards article{border:1px solid #ffffff16;border-radius:20px;padding:28px;background:#15111f}.cards article>span{font-size:11px;color:var(--purple);letter-spacing:2px}.cards p{color:#b8aecb;font-size:14px;line-height:2}.quiet{display:grid;grid-template-columns:1fr 1fr;gap:70px;align-items:center}.quiet p{font-size:16px;color:#b8aecb}.status .cards{grid-template-columns:1fr 1fr}details{padding:20px 0;border-bottom:1px solid #ffffff18}summary{cursor:pointer;font-weight:600}details p{font-size:14px;color:#b8aecb;max-width:750px}footer{display:flex;flex-wrap:wrap;align-items:center;gap:25px;padding-top:40px;padding-bottom:45px;font-size:12px;color:var(--muted)}footer .logo{color:var(--text)}.document{max-width:780px}.document p,.document li{color:#c8bfd9;font-size:15px}.document h1{font-size:38px}.document h2{font-size:24px;margin:34px 0 16px}button:focus-visible,a:focus-visible,summary:focus-visible{outline:2px solid #baa1ff;outline-offset:5px}@media(max-width:760px){header,main,footer{padding-left:24px;padding-right:24px}.hero{grid-template-columns:1fr;gap:30px;padding-top:25px}.visual{padding-top:0}.phone{transform:rotate(0)}section{padding:65px 0}.cards,.quiet,.status .cards{grid-template-columns:1fr;gap:18px}.quiet h2{margin-bottom:0}footer{align-items:flex-start;flex-direction:column;gap:8px}.document h1{font-size:28px}}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
