:root{--navy:#0b1f3a;--blue:#1e5eff;--grey:#5b6b86;--line:#e3e9f3;--grad:linear-gradient(100deg,#1e5eff,#10b981)}
*{box-sizing:border-box}
body{margin:0;background:#f4f7fc;color:var(--navy);font:16px/1.65 Inter,-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Arial,sans-serif;-webkit-font-smoothing:antialiased}
header{background:#fff;border-bottom:1px solid var(--line)}
header .in{max-width:820px;margin:0 auto;padding:0 18px;height:60px;display:flex;align-items:center;gap:18px}
.brand{display:flex;align-items:center;gap:9px;font-weight:700;font-size:17px;text-decoration:none;color:var(--navy)}
.mark{width:30px;height:30px;border-radius:9px;background:var(--grad);display:grid;place-items:center;color:#fff;font-size:12.5px;font-weight:800}
header nav{margin-left:auto;display:flex;gap:16px;font-size:14px}header nav a{color:var(--grey);text-decoration:none}header nav a:hover{color:var(--blue)}
main{max-width:820px;margin:24px auto;padding:28px 26px;background:#fff;border:1px solid var(--line);border-radius:18px;box-shadow:0 8px 24px rgba(11,31,58,.06)}
h1{margin:0 0 6px;font-size:30px;line-height:1.2}
h2{margin:28px 0 8px;font-size:19px}
.meta{color:var(--grey);margin:0 0 18px;font-size:14px}
.short{background:#eef4ff;border-radius:12px;padding:14px 16px}
a{color:var(--blue)}
ul{padding-left:20px}li{margin:6px 0}
table{border-collapse:collapse;margin:8px 0 12px;font-size:15px}
th,td{border:1px solid var(--line);padding:8px 14px;text-align:left}th{background:#f6f9ff}
footer{text-align:center;color:var(--grey);font-size:13px;padding:6px 16px 34px}footer a{color:var(--grey)}
@media(max-width:560px){main{margin:12px;padding:20px 18px}h1{font-size:25px}header nav{gap:12px;font-size:13px}}