:root{color-scheme:light;font-family:system-ui,-apple-system,"Segoe UI",sans-serif;color:#24304b;background:#f7f8fc}*{box-sizing:border-box}body{margin:0;line-height:1.7}a{color:#344bd4}a:hover{text-decoration-thickness:2px}.wrap{max-width:940px;margin:auto;padding:24px 22px 70px}header{display:flex;align-items:center;justify-content:space-between;gap:18px;border-bottom:1px solid #e0e5f0;padding-bottom:18px}header a.brand{font-size:20px;font-weight:850;color:#24304b;text-decoration:none}header nav{display:flex;gap:13px;flex-wrap:wrap;font-size:13px}main{padding-top:29px}h1{font-size:clamp(28px,4vw,43px);line-height:1.22;letter-spacing:-.04em}h2{font-size:23px;margin-top:29px;line-height:1.35}.intro{font-size:18px;color:#52627a;max-width:780px}.card{background:white;border:1px solid #e4e9f2;border-radius:16px;padding:22px 25px;box-shadow:0 8px 22px #242f4910;margin-top:18px}.button{display:inline-block;text-decoration:none;background:#4555dc;color:white;padding:12px 20px;font-weight:750;border-radius:10px;margin:12px 8px 0 0}.button.secondary{background:#eef1ff;color:#344bd4}.muted{font-size:13px;color:#65748b}.notice{background:#edf2ff;border-left:4px solid #536bd7;padding:13px 17px;border-radius:8px}li{margin:9px 0}.links{display:flex;flex-wrap:wrap;gap:15px}footer{margin-top:34px;border-top:1px solid #e0e5f0;padding-top:18px;color:#596781;font-size:13px}@media(max-width:700px){header{align-items:flex-start;flex-direction:column}.card{padding:18px}.wrap{padding:18px 15px 50px}}