:root{--bg:#0b1020;--surface:#141d32;--line:#2b3751;--text:#edf3ff;--muted:#b5c3da;--accent:#8d80ff;--mint:#8ee5cb}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:system-ui,-apple-system,"Noto Sans JP",sans-serif;background:var(--bg);color:var(--text);line-height:1.85}a{color:#c1b9ff}a:hover{color:white}.wrap{max-width:1060px;margin:auto;padding:0 24px}.top{border-bottom:1px solid var(--line);background:#0e1527}.nav{display:flex;align-items:center;justify-content:space-between;gap:20px;min-height:74px;flex-wrap:wrap}.brand{font-size:1.3rem;font-weight:850;color:white;text-decoration:none;letter-spacing:.03em}.brand span{color:var(--mint)}nav{display:flex;flex-wrap:wrap;gap:16px;font-size:.89rem}nav a{text-decoration:none;color:var(--muted)}nav a:hover{color:white}.hero{padding:88px 0 76px;background:radial-gradient(ellipse at 75% 5%,#29204e 0,transparent 55%)}.eyebrow{font-size:.8rem;color:var(--mint);letter-spacing:.18em;font-weight:750}.hero h1{font-size:clamp(2.15rem,5vw,3.9rem);line-height:1.25;max-width:800px;margin:12px 0 20px}.lead{font-size:1.08rem;color:var(--muted);max-width:730px}.pill{display:inline-block;padding:5px 12px;border:1px solid #574e91;border-radius:999px;font-size:.8rem;color:#d2cfff}.section{padding:56px 0}.section h2{font-size:1.7rem;margin:0 0 20px}.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.card{border:1px solid var(--line);background:var(--surface);border-radius:16px;padding:25px}.card h3{margin:0 0 8px}.card p{color:var(--muted);margin:0}.price{font-size:2.2rem;font-weight:800;color:white}.muted{color:var(--muted)}.note{border-left:3px solid var(--accent);padding:12px 18px;background:#171d34;color:#cfd9ef;border-radius:0 8px 8px 0}.cta{display:inline-block;background:var(--accent);color:#101125;text-decoration:none;border-radius:9px;padding:12px 22px;font-weight:750}.cta:hover{color:#101125;background:#b1a8ff}.article{max-width:820px;padding:55px 0 80px}.article h1{font-size:2.1rem;line-height:1.35}.article h2{font-size:1.28rem;margin-top:38px;border-bottom:1px solid var(--line);padding-bottom:9px}.article p,.article li{color:#d1dcf0}.article ul{padding-left:1.4rem}.article table{width:100%;border-collapse:collapse}.article td,.article th{padding:12px;border-bottom:1px solid var(--line);text-align:left;vertical-align:top}.article th{width:32%;color:#e6ecfa}.footer{border-top:1px solid var(--line);padding:32px 0;color:var(--muted);font-size:.85rem}.footlinks{display:flex;gap:14px;flex-wrap:wrap}.warn{background:#31241c;border:1px solid #806045;padding:16px;border-radius:10px;color:#ffe1c6}code{background:#202a43;padding:2px 5px;border-radius:4px}@media(max-width:720px){.grid{grid-template-columns:1fr}.hero{padding:60px 0}.nav{padding:12px 0}nav{gap:10px}.article{padding-top:35px}}