:root{
  --bg:#0b1020;
  --card:#111a33;
  --text:#eaf0ff;
  --muted:#b7c4ff;
  --link:#7db1ff;
  --accent:#7cffa7;
  --border:rgba(255,255,255,.12);
  --shadow:0 10px 30px rgba(0,0,0,.35);
  --mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
}
*{box-sizing:border-box}
html,body{margin:0;padding:0;background:radial-gradient(1200px 700px at 10% 0%, #162a5a 0%, var(--bg) 50%), var(--bg);color:var(--text);font-family: system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Noto Sans TC","PingFang TC","Microsoft JhengHei",sans-serif;line-height:1.6}
a{color:var(--link);text-decoration:none}
a:hover{text-decoration:underline}
.container{max-width:1040px;margin:0 auto;padding:32px 20px 60px}
.header{display:flex;flex-direction:column;gap:10px;margin-bottom:18px}
.title{font-size:28px;font-weight:800;letter-spacing:.2px}
.subtitle{color:var(--muted)}
.nav{display:flex;flex-wrap:wrap;gap:10px;margin:16px 0 26px}
.pill{display:inline-flex;align-items:center;gap:8px;padding:8px 12px;border:1px solid var(--border);border-radius:999px;background:rgba(255,255,255,.04);box-shadow:var(--shadow)}
.pill strong{font-weight:700}
.grid{display:grid;grid-template-columns:1fr;gap:14px}
@media (min-width: 860px){.grid{grid-template-columns:1fr 1fr}}
.card{background:linear-gradient(180deg, rgba(255,255,255,.06), rgba(255,255,255,.03));border:1px solid var(--border);border-radius:14px;padding:18px;box-shadow:var(--shadow)}
.card h2{margin:0 0 10px;font-size:18px}
.card p{margin:8px 0}
.card ul{margin:10px 0 0 18px}
.section{margin-top:26px}
.section h1{font-size:22px;margin:0 0 10px}
.section h2{font-size:18px;margin:18px 0 8px}
.section h3{font-size:15px;margin:14px 0 6px;color:var(--accent)}
hr{border:none;border-top:1px solid var(--border);margin:26px 0}
.small{font-size:13px;color:var(--muted)}
.kbd{font-family:var(--mono);font-size:12px;padding:2px 6px;border:1px solid var(--border);border-radius:6px;background:rgba(0,0,0,.25)}
.footer{margin-top:40px;color:var(--muted);font-size:13px}
.quote{border-left:3px solid rgba(124,255,167,.5);padding-left:12px;color:#d7e2ff;margin:10px 0}
.table{width:100%;border-collapse:collapse;margin:10px 0}
.table th,.table td{border:1px solid var(--border);padding:8px 10px;vertical-align:top}
.table th{background:rgba(255,255,255,.05);text-align:left}
.badge{display:inline-block;padding:2px 8px;border:1px solid var(--border);border-radius:999px;background:rgba(124,255,167,.12);color:var(--accent);font-size:12px}