*{box-sizing:border-box}body{margin:0;color:#17212b;font-family:-apple-system,BlinkMacSystemFont,"Noto Sans JP","Noto Sans KR","Noto Sans SC",sans-serif;line-height:1.75}a{color:#0b6b67}.wrap{max-width:900px;margin:auto;padding:30px 22px}header,footer{background:#102f35;color:white}.brand{color:white;text-decoration:none;font-weight:800}.hero{background:linear-gradient(135deg,#eef8f6,#f8fbfc)}h1{font-size:clamp(2rem,5vw,3.1rem);line-height:1.25}.lead{font-size:1.1rem;color:#42525d}.eyebrow{font-size:.82rem;letter-spacing:.13em;color:#0b6b67;font-weight:800}.notice{background:#fff6df;border-left:4px solid #d79a00;padding:15px 17px;margin:24px 0}.small{color:#64727b;font-size:.9rem}.sources li{margin:.6rem 0}@media(max-width:640px){.wrap{padding:24px 17px}h1{font-size:2rem}}