*{box-sizing:border-box;margin:0;padding:0}
:root{
  --bg:#eaf6ff; --surface:#ffffff; --surface-2:#f0f9ff;
  --text:#0c2340; --muted:#475569; --border:#bae6fd;
  --primary:#0ea5e9; --primary-2:#38bdf8; --primary-3:#7dd3fc;
  --accent:#f97316; --success:#10b981;
  --grad:linear-gradient(135deg,#0ea5e9 0%,#38bdf8 50%,#7dd3fc 100%);
  --grad-accent:linear-gradient(135deg,#f97316,#fb923c);
  --shadow:0 8px 30px -10px rgba(14,165,233,.35);
  --shadow-lg:0 20px 50px -12px rgba(14,165,233,.45);
  --radius:14px;
}
html,body{background:var(--bg);color:var(--text);font-family:'Plus Jakarta Sans',system-ui,sans-serif;line-height:1.6;-webkit-font-smoothing:antialiased}
a{color:var(--primary);text-decoration:none}
.container{max-width:1200px;margin:0 auto;padding:0 20px}
.main{padding:24px 20px 60px}

/* Header */
.site-header{background:#fff;border-bottom:1px solid var(--border);position:sticky;top:0;z-index:50;box-shadow:0 2px 10px rgba(14,165,233,.08)}
.header-inner{display:flex;align-items:center;justify-content:space-between;padding:14px 20px;gap:20px;flex-wrap:wrap}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:20px;color:var(--text)}
.brand-mark{background:var(--grad);color:#fff;width:38px;height:38px;border-radius:10px;display:grid;place-items:center;font-weight:800;box-shadow:var(--shadow)}
.top-nav{display:flex;flex-wrap:wrap;gap:6px}
.nav-link{padding:8px 14px;border-radius:999px;color:var(--muted);font-weight:600;font-size:14px;transition:.2s}
.nav-link:hover{background:var(--surface-2);color:var(--primary)}
.nav-link.active{background:var(--grad);color:#fff;box-shadow:var(--shadow)}
.ticker{background:var(--grad);color:#fff;overflow:hidden}
.ticker-inner{padding:8px 20px;font-size:13px;font-weight:600;white-space:nowrap;animation:scroll 30s linear infinite}
@keyframes scroll{0%{transform:translateX(0)}100%{transform:translateX(-50%)}}

/* Ads */
.ad-slot{background:#fff;border:2px dashed var(--primary-3);border-radius:var(--radius);padding:14px;margin:22px 0;text-align:center;min-height:160px}
.ad-label{display:block;font-size:11px;font-weight:700;letter-spacing:1.5px;color:var(--muted);text-transform:uppercase;margin-bottom:8px}

/* Hero */
.hero{background:var(--grad);color:#fff;border-radius:var(--radius);padding:50px 30px;text-align:center;margin-bottom:30px;box-shadow:var(--shadow-lg)}
.hero h1{font-size:clamp(28px,5vw,46px);font-weight:800;margin-bottom:12px;line-height:1.15}
.hero p{font-size:17px;opacity:.95;max-width:680px;margin:0 auto 22px}
.pills{display:flex;flex-wrap:wrap;gap:8px;justify-content:center}
.pill{background:rgba(255,255,255,.2);backdrop-filter:blur(10px);padding:8px 16px;border-radius:999px;font-size:13px;font-weight:600;border:1px solid rgba(255,255,255,.3)}

/* Section */
.section{margin:40px 0}
.section-head{display:flex;align-items:end;justify-content:space-between;gap:16px;margin-bottom:20px;flex-wrap:wrap}
.section-head h2{font-size:26px;font-weight:800;color:var(--text)}
.section-head p{color:var(--muted);font-size:14px}

/* Grid */
.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:18px}
.card{background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:22px;transition:.25s;box-shadow:0 4px 14px rgba(14,165,233,.08)}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);border-color:var(--primary-2)}
.card-icon{width:48px;height:48px;border-radius:12px;background:var(--grad);color:#fff;display:grid;place-items:center;font-size:22px;margin-bottom:14px;box-shadow:var(--shadow)}
.card h3{font-size:18px;font-weight:700;margin-bottom:6px}
.card .meta{color:var(--muted);font-size:13px;margin-bottom:14px}
.code-box{display:flex;align-items:center;gap:8px;background:var(--surface-2);border:1px dashed var(--primary-3);border-radius:10px;padding:10px 14px;margin-top:12px}
.code-box code{font-family:'JetBrains Mono',monospace;font-weight:700;color:var(--primary);flex:1;letter-spacing:1px}
.btn{display:inline-flex;align-items:center;gap:6px;padding:10px 18px;border-radius:10px;font-weight:700;font-size:13px;cursor:pointer;border:none;transition:.2s}
.btn-primary{background:var(--grad);color:#fff;box-shadow:var(--shadow)}
.btn-primary:hover{transform:translateY(-1px);box-shadow:var(--shadow-lg)}
.btn-accent{background:var(--grad-accent);color:#fff}
.btn-ghost{background:var(--surface-2);color:var(--primary);border:1px solid var(--border)}
.tag{display:inline-block;background:var(--surface-2);color:var(--primary);padding:3px 10px;border-radius:999px;font-size:11px;font-weight:700;margin-right:5px}
.tag-hot{background:#fff1e5;color:var(--accent)}
.tag-new{background:#dcfce7;color:var(--success)}

/* FAQ */
.faq-item{background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:18px 22px;margin-bottom:12px}
.faq-item h4{font-weight:700;margin-bottom:8px;color:var(--text)}
.faq-item p{color:var(--muted);font-size:14px}

/* Testimonial */
.testimonial{background:#fff;border-left:4px solid var(--primary);padding:20px;border-radius:10px;box-shadow:0 4px 12px rgba(14,165,233,.06)}
.testimonial p{font-style:italic;color:var(--text);margin-bottom:10px}
.testimonial .who{font-size:13px;color:var(--muted);font-weight:600}

/* Footer */
.site-footer{background:#fff;border-top:1px solid var(--border);margin-top:40px;color:var(--muted)}
.footer-inner{display:grid;grid-template-columns:2fr 1fr 1fr;gap:30px;padding:40px 20px}
.footer-col h4{color:var(--text);font-size:15px;font-weight:700;margin-bottom:14px}
.footer-col a{display:block;color:var(--muted);font-size:14px;padding:4px 0;transition:.2s}
.footer-col a:hover{color:var(--primary)}
.footer-brand p{font-size:14px;max-width:340px;margin-top:10px}
.footer-bottom{padding:20px;border-top:1px solid var(--border);text-align:center;font-size:13px}

@media(max-width:720px){
  .footer-inner{grid-template-columns:1fr}
  .top-nav{justify-content:center;width:100%}
  .hero{padding:36px 20px}
}