:root{--ink:#10283a;--muted:#627887;--blue:#13a5e7;--green:#14b978;--line:#dce9ef;--bg:#f5fbfe;--card:#fff;--shadow:0 12px 34px rgba(31,72,94,.08)}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;color:var(--ink);background:#fff;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","Hiragino Kaku Gothic ProN","Yu Gothic",Meiryo,sans-serif;line-height:1.85}a{color:inherit;text-decoration:none}.top{border-bottom:1px solid #e5eef2;background:#fff;position:sticky;top:0;z-index:20}.top-inner{max-width:1120px;margin:auto;height:72px;padding:0 20px;display:flex;align-items:center;gap:24px}.brand{display:flex;align-items:center;gap:9px;font-weight:900}.mark{width:38px;height:38px;display:grid;place-items:center;border:2px solid #163b52;border-radius:11px;color:var(--green);background:#eafbf4;font-size:23px}.brand small{display:block;color:#548095;font-size:8px;letter-spacing:.18em}.top nav{margin-left:auto;display:flex;gap:22px;font-size:13px;font-weight:800}.top nav a:hover{color:var(--blue)}
.hero{background:linear-gradient(135deg,#eefaff,#f2fcf8);border-bottom:1px solid #e3eef2}.hero-inner{max-width:960px;margin:auto;padding:58px 22px 48px}.crumb{font-size:12px;color:#62808e;margin-bottom:16px}.eyebrow{color:#178cc5;font-size:12px;letter-spacing:.12em;font-weight:900}.hero h1{font-size:clamp(34px,5vw,54px);line-height:1.2;letter-spacing:-.035em;margin:8px 0 16px}.hero p{max-width:760px;color:#486574;font-weight:600}.main{max-width:960px;margin:auto;padding:38px 22px 80px}.notice{border:1px solid #bce5d2;background:#f0fcf6;border-radius:16px;padding:16px 18px;margin:0 0 24px}.ad-note{font-size:11px;color:#6e8089;background:#fafcfd;border:1px solid #e5edf1;border-radius:12px;padding:10px 13px}.card{background:#fff;border:1px solid var(--line);border-radius:18px;padding:24px;box-shadow:var(--shadow);margin:18px 0}.card h2,.article h2{font-size:25px;line-height:1.4;margin:0 0 12px}.card h3,.article h3{font-size:18px;margin:24px 0 7px}.checklist{display:grid;gap:9px;padding:0;list-style:none}.checklist li{padding:11px 13px;border-radius:12px;background:#f6fbfd}.checklist li:before{content:"✓";color:var(--green);font-weight:900;margin-right:8px}.compare{width:100%;border-collapse:collapse;font-size:14px}.compare th,.compare td{border-bottom:1px solid #e4edf1;padding:12px 10px;text-align:left}.compare th{background:#f4faff}.grid{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}.link-card{display:block;border:1px solid var(--line);border-radius:16px;padding:19px;background:#fff;transition:.15s}.link-card:hover{transform:translateY(-1px);box-shadow:var(--shadow)}.link-card strong{display:block;margin-bottom:5px}.link-card p{margin:0;color:var(--muted);font-size:13px}.cta{display:inline-flex;align-items:center;justify-content:center;gap:9px;background:linear-gradient(135deg,#16bd7b,#0ba86c);color:#fff;border-radius:999px;padding:13px 23px;font-weight:900}.cta.blue{background:linear-gradient(135deg,#20b3f3,#0a93dd)}.affiliate-slot{border:2px dashed #b9dce9;background:#f5fbfe;border-radius:18px;padding:24px;text-align:center;margin:22px 0}.affiliate-slot strong{display:block;font-size:20px}.affiliate-slot p{color:var(--muted);font-size:13px}.affiliate-slot .pending{display:inline-block;background:#e9f7fd;color:#1184ba;padding:7px 12px;border-radius:999px;font-size:12px;font-weight:900}.article{max-width:780px}.article p{color:#405b69}.article ul,.article ol{padding-left:1.3em}.callout{border-left:4px solid var(--blue);background:#f1faff;padding:14px 16px;border-radius:0 12px 12px 0;margin:20px 0}.source-box{margin-top:32px;border-top:1px solid var(--line);padding-top:20px}.source-box h2{font-size:17px}.source-box a{color:#147ead;text-decoration:underline}.updated{font-size:12px;color:#7b8d97}.hub-head{display:flex;justify-content:space-between;gap:20px;align-items:end}.hub-head p{max-width:500px;color:var(--muted)}.footer{background:#f4fafc;border-top:1px solid #e4edf1;padding:34px 20px}.footer-inner{max-width:960px;margin:auto;display:flex;gap:18px;flex-wrap:wrap;align-items:center;font-size:12px}.footer-inner .links{margin-left:auto;display:flex;gap:15px;flex-wrap:wrap;color:#5f7885}
@media(max-width:720px){.top-inner{height:62px}.top nav{display:none}.hero-inner{padding:38px 17px 34px}.hero h1{font-size:34px}.main{padding:28px 16px 70px}.grid{grid-template-columns:1fr}.card{padding:18px}.compare{font-size:12px}.compare th,.compare td{padding:9px 6px}.footer-inner .links{margin-left:0;width:100%}}