:root{--bg: #edf2f6;--bg-soft: #e3eaf0;--surface: #f8fbfd;--text: #1f2933;--muted: #5d6b78;--line: #cfd9e2;--accent: #315d78;--accent-2: #7c94a8;--shadow: 0 8px 24px rgba(25, 38, 52, .08)}*{box-sizing:border-box}html,body{margin:0;padding:0}body{min-height:100vh;color:var(--text);font-family:-apple-system,BlinkMacSystemFont,Helvetica Neue,Helvetica,Arial,sans-serif;background:radial-gradient(72rem 42rem at 120% -20%,rgba(124,148,168,.22),transparent 58%),radial-gradient(68rem 42rem at -25% 20%,rgba(49,93,120,.12),transparent 56%),linear-gradient(180deg,var(--bg-soft),var(--bg))}a{color:inherit}.site-shell{min-height:100vh;display:grid;grid-template-rows:auto 1fr auto}.container{width:min(1100px,92vw);margin:0 auto}.site-header{position:sticky;top:0;z-index:20;border-bottom:1px solid var(--line);-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);background:color-mix(in oklab,var(--bg) 82%,white 18%)}.nav{display:flex;align-items:center;justify-content:space-between;gap:1rem;padding:.72rem 0}.logo{display:inline-flex;align-items:center;gap:.55rem;font-weight:650;letter-spacing:.015em;text-decoration:none}.logo-mark{width:1.8rem;height:1.8rem;border-radius:999px;display:grid;place-items:center;color:#fff;background:linear-gradient(135deg,#4a7896,var(--accent));box-shadow:0 6px 16px #315d783d}.nav-links{display:flex;gap:.6rem}.nav-links a{border-radius:999px;border:1px solid transparent;padding:.45rem .8rem;text-decoration:none;font-weight:650;color:var(--muted);transition:.16s ease}.nav-links a:hover{border-color:var(--line);background:var(--surface);color:var(--text)}main{padding:2.1rem 0 3rem}.site-footer{border-top:1px solid var(--line);color:var(--muted);background:color-mix(in oklab,var(--bg-soft) 65%,white 35%)}.footer-inner{display:flex;justify-content:space-between;align-items:center;gap:.8rem;padding:.95rem 0;font-size:.95rem}.btn{display:inline-flex;align-items:center;justify-content:center;border-radius:8px;border:1px solid transparent;padding:.66rem 1rem;font-weight:650;text-decoration:none;transition:.18s ease}.btn.primary{color:#fff;background:linear-gradient(135deg,#4b7897,var(--accent));box-shadow:0 8px 18px #315d7833}.btn.primary:hover{transform:translateY(-.5px)}.btn.ghost{color:var(--text);border-color:var(--line);background:#ffffffb8}.btn.ghost:hover{border-color:#b7c6d3;background:#fff}.card{border-radius:12px;border:1px solid var(--line);background:color-mix(in oklab,var(--surface) 90%,var(--bg) 10%);box-shadow:var(--shadow)}@media(max-width:760px){.nav{flex-direction:column;align-items:flex-start;padding-bottom:.9rem}.footer-inner{flex-direction:column;align-items:flex-start}}