:root{
  --pri:#2196F3; --pri-d:#1565C0; --navy:#15315c; --ink:#1a1f29; --muted:#6b7280;
  --bg:#f6f8fb; --line:#e6eaf1; --gold:#B0832B; --radius:18px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:-apple-system,BlinkMacSystemFont,'Segoe UI','Malgun Gothic','Apple SD Gothic Neo',sans-serif;color:var(--ink);line-height:1.75;background:#fff;-webkit-font-smoothing:antialiased}
a{color:var(--pri-d);text-decoration:none}
a:hover{text-decoration:underline}
.wrap{max-width:760px;margin:0 auto;padding:0 22px}
nav{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.9);backdrop-filter:saturate(180%) blur(12px);border-bottom:1px solid var(--line)}
nav .wrap{display:flex;align-items:center;justify-content:space-between;height:60px;max-width:1080px}
.brand{display:flex;align-items:center;gap:9px;font-weight:800;font-size:18px;color:var(--navy)!important;text-decoration:none!important}
.brand img{width:28px;height:28px;border-radius:8px}
.nav-right{display:flex;align-items:center;gap:18px;font-size:14px;font-weight:600}
.nav-right a{color:#3a4254}
.nav-cta{background:linear-gradient(135deg,var(--pri),var(--pri-d));color:#fff!important;padding:8px 16px;border-radius:999px;font-weight:700;font-size:13px;text-decoration:none!important}
article{padding:48px 0 20px}
.crumb{font-size:13px;color:var(--muted);margin-bottom:18px}
h1{font-size:31px;line-height:1.3;letter-spacing:-.5px;color:var(--navy);font-weight:800}
.meta{color:var(--muted);font-size:13.5px;margin-top:12px;padding-bottom:22px;border-bottom:1px solid var(--line)}
article h2{font-size:21px;color:var(--navy);margin:38px 0 12px;letter-spacing:-.3px}
article h3{font-size:17px;color:var(--navy);margin:26px 0 8px}
article p{margin:12px 0;font-size:15.5px;color:#2b3240}
article ul,article ol{margin:12px 0 12px 22px;font-size:15.5px;color:#2b3240}
article li{margin:6px 0}
article b,article strong{color:var(--ink)}
blockquote{border-left:4px solid var(--pri);background:var(--bg);padding:14px 18px;border-radius:0 12px 12px 0;margin:18px 0;font-size:15px;color:#3a4254}
.cta-box{background:linear-gradient(135deg,#15315c,#2196F3);color:#fff;border-radius:20px;padding:30px 26px;margin:44px 0 10px;text-align:center}
.cta-box h2{color:#fff;margin:0 0 8px;font-size:21px}
.cta-box p{color:rgba(255,255,255,.92);font-size:14.5px;margin:0 0 18px}
.cta-box .btn{display:inline-block;background:#fff;color:var(--pri-d);font-weight:800;font-size:14.5px;padding:12px 26px;border-radius:999px;text-decoration:none!important;margin:0 5px 8px}
.cta-box .btn.ghost{background:transparent;color:#fff;border:1.5px solid rgba(255,255,255,.6)}
.rel{background:var(--bg);border:1px solid var(--line);border-radius:16px;padding:20px 22px;margin:30px 0}
.rel h2{font-size:15px;margin:0 0 10px}
.rel ul{margin:0 0 0 20px;font-size:14.5px}
/* blog index */
.bhero{background:linear-gradient(150deg,#0f2747,#1a3a6a 55%,#2196F3 130%);color:#fff;padding:54px 0}
.bhero h1{color:#fff;font-size:34px}
.bhero p{opacity:.92;margin-top:10px;font-size:15.5px}
.cards{display:flex;flex-direction:column;gap:16px;padding:40px 0 20px}
.card{display:block;background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:24px 26px;transition:.18s;text-decoration:none!important}
.card:hover{transform:translateY(-3px);box-shadow:0 14px 30px rgba(21,49,92,.09);border-color:#cfe0f5}
.card .tag{display:inline-block;font-size:11.5px;font-weight:800;color:var(--pri-d);background:#e7f1fd;border-radius:999px;padding:3px 11px;margin-bottom:10px}
.card h2{font-size:19px;color:var(--navy);margin:0 0 6px;letter-spacing:-.3px}
.card p{color:var(--muted);font-size:14px;margin:0}
.card .date{font-size:12.5px;color:#9aa3b2;margin-top:10px;display:block}
footer{background:#0f1d31;color:#9fb0c8;padding:36px 0;text-align:center;font-size:13px;margin-top:56px}
footer a{color:#cfe0f5}
@media(max-width:600px){h1{font-size:25px}.bhero h1{font-size:27px}article h2{font-size:19px}}