:root{--color-brand:#0f172a;--color-accent:#2563eb;--color-accent-deep:#1d4ed8;--color-accent-soft:#2563eb1a;--color-surface:#fff;--color-muted:#f8fafc;--color-border:#e5e7eb;--color-ink:#0f172a;--color-ink-mid:#475569;--color-danger:#dc2626;--color-success:#16a34a;--font-sans:"Noto Sans JP", system-ui, -apple-system, sans-serif;--radius-card:14px;--radius-control:10px;--max-w:720px}*{box-sizing:border-box;margin:0;padding:0}html{-webkit-text-size-adjust:100%}body{font-family:var(--font-sans);color:var(--color-ink);background:var(--color-muted);font-size:16px;line-height:1.75}a{color:var(--color-accent-deep)}img{max-width:100%;display:block}.wrap{max-width:var(--max-w);margin:0 auto;padding:0 18px}.hdr{background:var(--color-surface);border-bottom:1px solid var(--color-border)}.hdr .wrap{justify-content:space-between;align-items:center;min-height:56px;display:flex}.brand{letter-spacing:.08em;color:var(--color-brand);font-size:15px;font-weight:900;text-decoration:none}.tag{color:var(--color-ink-mid);font-size:12px}.hero{padding:28px 0 18px}.hero h1{font-size:24px;font-weight:900;line-height:1.4}.hero p{color:var(--color-ink-mid);margin-top:8px;font-size:15px}.card{background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-card);margin:14px 0;padding:18px}.card h2{margin-bottom:10px;font-size:17px;font-weight:700}.compare{border:1px solid var(--color-border);background:#fff;border-radius:10px;overflow:hidden}.btn{border-radius:var(--radius-control);cursor:pointer;border:0;justify-content:center;align-items:center;width:100%;min-height:52px;padding:0 18px;font-size:16px;font-weight:700;text-decoration:none;display:inline-flex}.btn.primary{background:var(--color-accent);color:#fff}.btn.primary:hover{background:var(--color-accent-deep)}.btn.secondary{color:var(--color-accent-deep);border:2px solid var(--color-accent);background:0 0}.btn:focus-visible{outline:3px solid var(--color-accent);outline-offset:2px}.note{color:var(--color-ink-mid);font-size:13px}.memo{gap:10px;display:grid}.memo .item{border-left:4px solid var(--color-accent);background:var(--color-muted);border-radius:6px;padding:8px 12px}.memo .item b{font-size:14px;display:block}.memo .item span{color:var(--color-ink-mid);font-size:13px;display:block}.memo .item em{color:var(--color-success);margin-top:4px;font-size:13px;font-style:normal;font-weight:700;display:block}.faq dt{margin-top:10px;font-size:14px;font-weight:700}.faq dd{color:var(--color-ink-mid);font-size:14px}.frame{border:1px solid var(--color-border);background:#fff;border-radius:10px;width:100%;height:720px}footer{color:var(--color-ink-mid);padding:28px 0 40px;font-size:12px}footer .wrap{border-top:1px solid var(--color-border);padding-top:16px}.pill{color:var(--color-accent-deep);background:var(--color-accent-soft);border-radius:999px;padding:3px 10px;font-size:12px;font-weight:700;display:inline-block}@media (prefers-reduced-motion:reduce){*{transition:none!important}}