:root{--brand: #fb3d0b;--brand-dark: #e0330a;--brand-soft: rgba(251,61,11,.12);--bg: #0a0a0f;--bg-card: #111119;--bg-card2: #16161f;--ink: #f0f0f5;--ink-soft: #9a9aa8;--line: #23232e;--ok: #22c55e;--danger: #f0503a;--sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", system-ui, sans-serif;--maxw: 1120px;--radius: 14px;--shadow: 0 8px 30px rgba(0,0,0,.5)}*{box-sizing:border-box}body{margin:0;font-family:var(--sans);color:var(--ink);background:var(--bg);line-height:1.6;-webkit-font-smoothing:antialiased}a{color:inherit;text-decoration:none}img{max-width:100%;display:block}.container{max-width:var(--maxw);margin:0 auto;padding:0 20px}.site-header{border-bottom:1px solid var(--line);position:sticky;top:0;background:#0a0a0fd9;backdrop-filter:blur(12px);z-index:50}.header-inner{display:flex;align-items:center;justify-content:space-between;padding:14px 20px}.brand{display:flex;align-items:center;gap:10px}.brand 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var(--line);background:#fff}@media(max-width:980px){.program-hero-card,.age-grid,.steps-grid,.guide-grid,.source-gallery{grid-template-columns:1fr}}