:root{--bg:#0f172a;--card:#111827;--text:#e5e7eb;--muted:#94a3b8;--accent:#22d3ee;--line:#1f2937;--max:1100px}
*{box-sizing:border-box}html,body{margin:0;padding:0;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Noto Sans TC",sans-serif;background:#020617;color:var(--text);line-height:1.7}
a{color:var(--accent);text-decoration:none}a:hover{text-decoration:underline}
.container{max-width:var(--max);margin:0 auto;padding:0 1rem}
.site-header{position:sticky;top:0;background:rgba(2,6,23,.85);backdrop-filter:blur(8px);border-bottom:1px solid var(--line);z-index:20}
.nav{display:flex;align-items:center;justify-content:space-between;gap:1rem;padding:.85rem 0}.brand{font-weight:700;color:#fff}.menu{display:flex;flex-wrap:wrap;gap:.8rem;font-size:.95rem}
.hero{padding:5rem 0 3rem;background:linear-gradient(135deg,#0b1120 0%,#0f172a 45%,#082f49 100%)}
.hero h1{margin:.2rem 0 1rem;font-size:clamp(1.8rem,4vw,3rem);line-height:1.2}.hero p{max-width:780px;color:#cbd5e1}
.btn{display:inline-block;margin-top:1rem;background:var(--accent);color:#06212a;padding:.65rem 1rem;border-radius:.55rem;font-weight:600}
main{padding:2.2rem 0}.grid{display:grid;gap:1rem}.grid.cols-3{grid-template-columns:repeat(auto-fit,minmax(220px,1fr))}
.card{background:rgba(17,24,39,.8);border:1px solid var(--line);border-radius:.8rem;padding:1rem}
.card h3,.card h2{margin:.15rem 0 .5rem}.muted{color:var(--muted)}
.section-title{margin:0 0 .85rem;font-size:1.5rem}.list{padding-left:1.2rem;margin:.5rem 0}.list li{margin:.3rem 0}
.site-footer{border-top:1px solid var(--line);margin-top:2rem;padding:1.2rem 0;color:var(--muted);font-size:.93rem}
.badge{display:inline-block;background:#083344;color:#67e8f9;border:1px solid #0e7490;border-radius:999px;padding:.2rem .6rem;font-size:.8rem;margin-right:.4rem}
@media (max-width:700px){.menu{font-size:.88rem;gap:.55rem}}