body{font-family:-apple-system,Segoe UI,Helvetica,sans-serif;max-width:760px;margin:0 auto;padding:48px 22px 80px;color:#18202a;line-height:1.65}
h1{font-size:1.9rem;margin:0 0 6px}h2{font-size:1.15rem;margin:32px 0 8px}
.sub{color:#667;margin:0 0 28px}a{color:#2e5395}
.box{background:#f3f6fb;border:1px solid #dbe3ef;border-radius:10px;padding:14px 16px;margin:18px 0}
footer{margin-top:44px;border-top:1px solid #e3e8f0;padding-top:16px;color:#778;font-size:.9rem}