:root{--bg:#f7f7fb;--card:#fff;--ink:#1d1d2b;--muted:#6b6b80;--line:#e4e4ee;--accent:#4f46e5;--accent-soft:#eef0ff}
@media (prefers-color-scheme:dark){:root{--bg:#12121a;--card:#1c1c28;--ink:#ececf4;--muted:#9a9ab0;--line:#2c2c3c;--accent:#8b85ff;--accent-soft:#25244a}}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--ink);font:16px/1.55 system-ui,-apple-system,"Segoe UI",Roboto,sans-serif}
a{color:var(--accent);text-decoration:none}a:hover{text-decoration:underline}
.wrap{max-width:920px;margin:0 auto;padding:0 18px}
.top{background:var(--card);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:5}
.bar{display:flex;align-items:center;justify-content:space-between;height:56px}
.brand{font-weight:700;color:var(--ink);font-size:1.1rem;display:flex;align-items:center;gap:8px}
.logo{display:inline-grid;place-items:center;width:28px;height:28px;border-radius:8px;background:var(--accent);color:#fff;font-weight:800}
nav a{margin-left:16px;color:var(--muted);font-weight:500}
.hero{padding:36px 0 14px;text-align:center}
.hero h1{font-size:clamp(1.7rem,5vw,2.5rem);margin:0 0 8px;letter-spacing:-.02em}
.hero p{color:var(--muted);margin:0 auto 20px;max-width:560px}
.search{display:flex;gap:8px;max-width:620px;margin:0 auto}
.search input{flex:1;min-width:0;padding:12px 14px;border:1px solid var(--line);border-radius:12px;font-size:1rem;background:var(--card);color:var(--ink)}
.search input:focus{outline:2px solid var(--accent);border-color:transparent}
.search button,.btn{padding:12px 18px;border:0;border-radius:12px;background:var(--accent);color:#fff;font-weight:600;font-size:1rem;cursor:pointer;display:inline-block}
.btn:hover{text-decoration:none;opacity:.92}
.chips{display:flex;gap:8px;overflow-x:auto;padding:14px 0 6px;scrollbar-width:thin}
.chip{white-space:nowrap;padding:6px 12px;border:1px solid var(--line);border-radius:999px;background:var(--card);color:var(--ink);font-size:.9rem}
.chip span{color:var(--muted);font-size:.8rem;margin-left:2px}
.chip.on{background:var(--accent);border-color:var(--accent);color:#fff}.chip.on span{color:#dcdcff}
.chip:hover{text-decoration:none;border-color:var(--accent)}
.count{color:var(--muted);font-size:.92rem;margin:10px 0}
.cards{list-style:none;padding:0;margin:0;display:grid;gap:12px}
.card{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:16px 18px}
.card h2{font-size:1.08rem;margin:6px 0;line-height:1.35}.card h2 a{color:var(--ink)}
.card p{margin:4px 0 8px;color:var(--muted);font-size:.95rem}
.meta{font-size:.8rem;color:var(--muted)}
.tag{display:inline-block;background:var(--accent-soft);color:var(--accent);border-radius:6px;padding:2px 8px;font-size:.78rem;font-weight:600}
.sec{margin-left:6px}
.wiki{font-size:.88rem;font-weight:500}
.empty{padding:30px;text-align:center;color:var(--muted)}
.pager{display:flex;justify-content:center;align-items:center;gap:18px;margin:22px 0;color:var(--muted)}
.small{font-size:.82rem;color:var(--muted)}
.crumbs{font-size:.88rem;color:var(--muted);margin-top:22px}
.detail{background:var(--card);border:1px solid var(--line);border-radius:16px;padding:22px;margin:14px 0}
.detail h1{margin:8px 0 10px;font-size:clamp(1.4rem,4vw,2rem);line-height:1.25}
.lead{font-size:1.06rem}
.related{padding-left:20px}
.src{width:100%;border-collapse:collapse;font-size:.92rem}
.src th,.src td{text-align:left;padding:6px 8px;border-bottom:1px solid var(--line)}
code{background:var(--accent-soft);padding:1px 5px;border-radius:5px;font-size:.88em}
.foot{color:var(--muted);font-size:.82rem;padding:30px 18px 40px;text-align:center}
@media (max-width:520px){.search{flex-direction:column}.card{padding:14px}nav a{margin-left:12px}}