:root{--bg:#0f1424;--card:#171d33;--line:#2a3252;--tx:#e8ebf7;--mut:#9aa3c4;--ac:#7c5cff;--ac2:#4f8cff}
@media(prefers-color-scheme:light){:root{--bg:#f4f5fb;--card:#fff;--line:#d9ddee;--tx:#171b2e;--mut:#5a6283}}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:70px}
body{margin:0;background:var(--bg);color:var(--tx);font:16px/1.65 system-ui,-apple-system,"Segoe UI",Roboto,"Apple Color Emoji","Segoe UI Emoji",sans-serif}
.top{display:flex;justify-content:space-between;align-items:center;gap:12px;flex-wrap:wrap;padding:14px 20px;border-bottom:1px solid var(--line);position:sticky;top:0;background:var(--bg);z-index:5}
.logo{font-weight:700;color:var(--tx);text-decoration:none}.logo span{color:var(--ac)}
main{max-width:820px;margin:0 auto;padding:28px 16px 60px}
h1{font-size:2rem;margin:.2em 0}.community{color:var(--ac2);font-weight:600;margin:0}.desc{color:var(--mut)}.upd{color:var(--mut);font-size:.85rem}
.toc,.sec{background:var(--card);border:1px solid var(--line);border-radius:12px;margin:12px 0}
summary{cursor:pointer;padding:14px 16px;font-weight:600;list-style:none;display:flex;gap:8px;align-items:center}
summary::-webkit-details-marker{display:none}summary::before{content:"▸";color:var(--ac);transition:transform .15s}
details[open]>summary::before{transform:rotate(90deg)}summary:hover{background:rgba(124,92,255,.1);border-radius:12px}
.toc nav{display:grid;padding:0 16px 14px}.toc a{color:var(--tx);text-decoration:none;padding:5px 0}.toc a:hover{color:var(--ac2)}
.body{padding:2px 18px 16px}.body h3{font-size:1.05rem;margin:1.2em 0 .3em;color:var(--ac2)}.body p{margin:.5em 0}
.body ul,.body ol{padding-left:1.4em}.body li{margin:.3em 0}
.cp{background:none;border:1px solid var(--line);color:var(--mut);border-radius:6px;font-size:.75rem;cursor:pointer;padding:1px 7px;margin-left:8px;vertical-align:middle}
.cp:hover{color:var(--tx);border-color:var(--ac)}
.tools{display:flex;gap:8px}.tools button{background:var(--card);color:var(--tx);border:1px solid var(--line);border-radius:8px;padding:7px 12px;cursor:pointer}
.tools button:hover{border-color:var(--ac)}
.hl{animation:h 2s}@keyframes h{from{background:rgba(124,92,255,.35)}to{background:transparent}}
footer{text-align:center;color:var(--mut);padding:20px;font-size:.85rem}

.menu{display:flex;gap:16px}.menu a,.crumbs a{color:var(--mut);text-decoration:none}.menu a:hover,.crumbs a:hover{color:var(--ac2)}
.crumbs{font-size:.85rem;color:var(--mut);margin:0 0 6px}
.snav{display:flex;justify-content:space-between;gap:8px;margin-top:16px;padding-top:12px;border-top:1px solid var(--line);font-size:.9rem}
.snav a{color:var(--ac2);text-decoration:none}.snav a:hover{text-decoration:underline}
.fab{position:fixed;right:14px;bottom:14px;display:flex;flex-direction:column;gap:8px;z-index:6}
.fab button{width:42px;height:42px;border-radius:50%;border:1px solid var(--line);background:var(--card);color:var(--tx);font-size:1.1rem;cursor:pointer}
.fab button:hover{border-color:var(--ac)}
.cp{border:0;padding:0 4px;font-size:.8rem;opacity:0;transition:opacity .12s}
summary:hover .cp,p:hover>.cp,li:hover>.cp,.cp:focus-visible{opacity:.8}
@media(hover:none){.cp{opacity:.35}}
.cp{opacity:.55}summary:hover .cp,.cp:hover,.cp:focus-visible{opacity:1}
@media(hover:none){.cp{opacity:.55}}