:root{--ink:#17221d;--sub:#626d65;--green:#176b48;--lime:#d9ff68;--paper:#f3f6f0;--line:#dde3dd}*{box-sizing:border-box}body{margin:0;background:var(--paper);color:var(--ink);font-family:"Noto Sans JP",sans-serif;line-height:1.85}a{color:var(--green)}.site-header{background:var(--ink);color:#fff}.site-header>div{width:min(calc(100% - 32px),980px);min-height:72px;margin:auto;display:flex;align-items:center;justify-content:space-between;gap:18px}.brand{font:900 22px "DM Sans",sans-serif;text-decoration:none;color:#fff}.brand i{font-style:normal;color:var(--lime)}.site-header nav{display:flex;gap:16px;flex-wrap:wrap}.site-header nav a{color:#d8e1dc;text-decoration:none;font-size:12px;font-weight:700}main{width:min(calc(100% - 32px),860px);margin:28px auto;background:#fff;border-radius:26px;padding:clamp(24px,6vw,58px);box-shadow:0 14px 45px #17221d12}.eyebrow{font:700 11px "DM Sans",sans-serif;letter-spacing:1.7px;color:var(--green)}h1{font-size:clamp(32px,6vw,52px);line-height:1.35;letter-spacing:-1.8px;margin:10px 0 16px}h2{font-size:24px;line-height:1.5;margin:46px 0 12px;padding-bottom:9px;border-bottom:1px solid var(--line)}h3{font-size:17px;margin:28px 0 6px}.lead{font-size:17px;color:var(--sub);margin-bottom:34px}.summary{background:#edf7ed;border-radius:18px;padding:18px 20px}.summary strong{display:block;margin-bottom:5px}.cards{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}.cards article,.step,.answer{border:1px solid var(--line);border-radius:17px;padding:18px}.cards h3,.step h3{margin-top:0}.step-number{display:inline-grid;place-items:center;width:32px;height:32px;border-radius:10px;background:var(--green);color:#fff;font:700 12px "DM Sans",sans-serif}.answer{margin:10px 0}.answer h2{font-size:18px;border:0;padding:0;margin:0 0 7px}.cta{margin-top:42px;background:var(--ink);color:#fff;border-radius:20px;padding:24px}.cta a{display:inline-block;margin-top:8px;background:var(--lime);color:var(--ink);border-radius:999px;padding:10px 18px;text-decoration:none;font-weight:900}.related{display:flex;flex-wrap:wrap;gap:8px;margin-top:34px}.related a{background:var(--paper);border-radius:999px;padding:7px 12px;text-decoration:none;font-size:12px;font-weight:800}footer{width:min(calc(100% - 32px),860px);margin:0 auto 34px;text-align:center;color:var(--sub);font-size:12px}@media(max-width:650px){.site-header nav a:not(:last-child){display:none}.cards{grid-template-columns:1fr}main{margin-top:16px}.lead{font-size:15px}}