:root{--bg:#f6f8fb;--fg:#1d2433;--muted:#5b6578;--card:#fff;--line:#dde3ec;--accent:#0b6bcb;--accent2:#ff9900}
html.dark{--bg:#10151f;--fg:#e6ebf3;--muted:#9aa6ba;--card:#182131;--line:#2a3547;--accent:#5aa8ff}
*{box-sizing:border-box}body{margin:0;font:16px/1.6 system-ui,Segoe UI,Roboto,Arial,sans-serif;background:var(--bg);color:var(--fg)}
a{color:var(--accent)}main{max-width:960px;margin:0 auto;padding:24px 16px 48px}
.top{display:flex;align-items:center;gap:16px;flex-wrap:wrap;padding:10px 16px;background:#232f3e;color:#fff}
.brand{display:flex;align-items:center;gap:8px;color:#fff;text-decoration:none;font-weight:700}
.main{display:flex;gap:4px;flex-wrap:wrap;flex:1}.main a{color:#d7e1ee;text-decoration:none;padding:6px 10px;border-radius:6px}
.main a.active,.main a:hover{background:#37475a;color:#fff}
.theme{background:none;border:1px solid #56657a;color:#fff;border-radius:6px;padding:4px 10px;cursor:pointer}
.crumbs{font-size:14px;color:var(--muted);margin-bottom:8px}.crumbs span{color:var(--fg)}
.hero{padding:28px;border-radius:12px;background:linear-gradient(135deg,#232f3e,#0b6bcb);color:#fff;margin-bottom:24px}
.hero h1{margin-top:0}.lead{font-size:18px;color:var(--muted)}
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:16px;margin:16px 0}
.card{display:block;padding:16px;background:var(--card);border:1px solid var(--line);border-left:4px solid var(--accent2);border-radius:10px;color:var(--fg);text-decoration:none}
.card:hover{border-color:var(--accent);transform:translateY(-1px)}.card h3{margin:0 0 6px;color:var(--accent)}.card p{margin:0;color:var(--muted)}
.note,.related{background:var(--card);border:1px solid var(--line);border-radius:10px;padding:12px 18px;margin-top:24px}
.search,.tool input{width:100%;padding:8px 10px;border:1px solid var(--line);border-radius:6px;background:var(--card);color:var(--fg);font:inherit}
.tool{margin:12px 0}.tool button{margin-top:8px;padding:8px 16px;border:0;border-radius:6px;background:var(--accent);color:#fff;cursor:pointer}
.grid2{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:12px}.grid2 label{display:flex;flex-direction:column;font-size:14px;color:var(--muted)}
.result{border-collapse:collapse;margin-top:12px;min-width:320px}.result td{border:1px solid var(--line);padding:6px 10px}.result td:first-child{color:var(--muted)}
.glossary dt{font-weight:700;margin-top:12px}.glossary dd{margin:2px 0 0 0;color:var(--muted)}
.pager{display:flex;gap:16px;justify-content:space-between;margin-top:32px}
pre{background:#0f1724;color:#d6e2f2;padding:12px;border-radius:8px;overflow:auto}.muted{color:var(--muted)}
footer{text-align:center;font-size:13px;color:var(--muted);padding:16px;border-top:1px solid var(--line)}