*{box-sizing:border-box}body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"Helvetica Neue",Arial,"Noto Sans JP",sans-serif;color:#191919;background:#fafaf7;line-height:1.85}a{color:inherit}header{background:#fff;border-bottom:1px solid #e8e8e4}nav{max-width:1050px;margin:auto;padding:17px 24px;display:flex;align-items:center;justify-content:space-between;gap:16px}.logo{font-size:26px;font-weight:900;letter-spacing:-1.5px;text-decoration:none}.logo span{background:#dfff27;padding:2px 10px;border-radius:9px}.links{display:flex;gap:18px;flex-wrap:wrap;font-size:13px}.links a{text-decoration:none}.wrap{max-width:850px;margin:auto;padding:54px 24px 80px}.hero{background:#dfff27;border-radius:24px;padding:64px 40px;margin-bottom:40px}.eyebrow{font-size:12px;font-weight:800;letter-spacing:2px}h1{font-size:clamp(30px,5vw,52px);line-height:1.3;letter-spacing:-1px;margin:12px 0}h2{font-size:23px;margin-top:36px}p,li{font-size:15px}section{background:#fff;border:1px solid #eaeae5;border-radius:18px;padding:28px;margin:18px 0}.muted{color:#686868}.btn{display:inline-block;background:#171717;color:#fff;border-radius:99px;padding:12px 24px;text-decoration:none;font-weight:700}.cards{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}.cards a{background:#fff;border:1px solid #eee;border-radius:16px;padding:20px;text-decoration:none;font-weight:700}footer{border-top:1px solid #e6e6e2;padding:30px 24px;text-align:center;color:#666;font-size:13px}.note{border-left:4px solid #d0dc00;padding:12px 18px;background:#ffffec}@media(max-width:640px){nav{align-items:flex-start;flex-direction:column}.links{gap:10px}.wrap{padding:28px 16px 56px}.hero{padding:36px 24px}.cards{grid-template-columns:1fr}section{padding:20px}}