*{box-sizing:border-box}body{margin:0;font:17px/1.65 -apple-system,BlinkMacSystemFont,"PingFang SC","Segoe UI",sans-serif;color:#1b1d4d;background:#fff6e6}
header{display:flex;flex-wrap:wrap;gap:6px 18px;align-items:center;padding:18px 20px;max-width:760px;margin:0 auto}
header a{color:#1b1d4d;text-decoration:none;font-weight:600}header a.on{border-bottom:3px solid #ff7ab6}
header .brand{font-size:20px;font-weight:800;margin-right:auto;display:flex;align-items:center;gap:10px}header .brand img{width:36px;height:36px;border-radius:9px}
main{max-width:760px;margin:0 auto;padding:0 16px 40px}.card{background:#fff;border:3px solid #1b1d4d;border-radius:22px;padding:8px 24px 24px;box-shadow:0 6px 0 #1b1d4d}
h1{font-size:30px;line-height:1.2;margin:22px 0 4px}h2{font-size:19px;margin:26px 0 4px}p,li{margin:8px 0}.muted{color:#6b6d92;font-size:15px}
a{color:#3b6bff}footer{text-align:center;color:#6b6d92;font-size:14px;padding:0 16px 40px}
@media (prefers-color-scheme:dark){body{background:#14153a;color:#f4f1ff}.card{background:#1f2157;border-color:#f4f1ff;box-shadow:0 6px 0 #0b0c24}header a{color:#f4f1ff}.muted,footer{color:#b3b5dc}a{color:#9db6ff}}