:root{--bg:#f5f6f8;--card:#fff;--text:#1d2330;--muted:#6b7280;--line:#e3e6eb;--primary:#2563eb;--danger:#dc2626;--ok:#16a34a}@media (prefers-color-scheme: dark){:root{--bg:#12151b;--card:#1b2029;--text:#e6e9ef;--muted:#98a1b3;--line:#2b3240;--primary:#5b8cff}}*{box-sizing:border-box}body{margin:0;font:14px/1.45 system-ui,sans-serif;background:var(--bg);color:var(--text)}a{color:var(--primary);text-decoration:none}.layout{display:grid;grid-template-columns:210px 1fr;min-height:100vh}.side{background:var(--card);border-right:1px solid var(--line);padding:16px 10px;display:flex;flex-direction:column;gap:2px}.side h1{font-size:17px;margin:0 8px 14px}.side a{padding:8px 10px;border-radius:8px;color:var(--text)}.side a.active{background:var(--primary);color:#fff}.side .who{margin-top:auto;padding:8px;color:var(--muted);font-size:12px}main{padding:24px;max-width:1100px;width:100%}h2{margin:0 0 16px;font-size:20px}.card{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:16px;margin-bottom:16px}.row{display:flex;gap:8px;align-items:center;flex-wrap:wrap}.row.end{justify-content:flex-end}input,select,textarea{padding:8px 10px;border:1px solid var(--line);border-radius:8px;background:var(--bg);color:var(--text);font:inherit}input:focus,select:focus,textarea:focus{outline:2px solid var(--primary);outline-offset:-1px}button{padding:8px 14px;border:0;border-radius:8px;background:var(--primary);color:#fff;font:inherit;cursor:pointer}button.ghost{background:transparent;color:var(--text);border:1px solid var(--line)}button.danger{background:var(--danger)}button:disabled{opacity:.5;cursor:default}table{width:100%;border-collapse:collapse}th,td{text-align:left;padding:8px 10px;border-bottom:1px solid var(--line);vertical-align:middle}th{color:var(--muted);font-weight:500;font-size:12px}.err{color:var(--danger);margin:8px 0}.muted{color:var(--muted)}.badge{display:inline-block;padding:2px 8px;border-radius:99px;font-size:12px;background:var(--bg);border:1px solid var(--line)}.thumb{width:40px;height:40px;border-radius:8px;object-fit:cover;display:grid;place-items:center;color:#fff;font-weight:600}.login{max-width:340px;margin:12vh auto}.login .card{display:flex;flex-direction:column;gap:10px}.grid2{display:grid;grid-template-columns:1fr 1fr;gap:12px}.tree-sub{padding-left:22px}.proj{border-top:1px solid var(--line);padding:12px 0}@media (max-width:760px){.layout{grid-template-columns:1fr}.side{flex-direction:row;flex-wrap:wrap}.side .who{display:none}.grid2{grid-template-columns:1fr}main{padding:14px}}.think-row{display:flex;justify-content:space-between;align-items:center;gap:12px;padding:8px 0;border-top:1px solid var(--line)}.seg{display:inline-flex;flex:none}.seg button{border-radius:0;padding:6px 14px}.seg button:first-child{border-radius:8px 0 0 8px}.seg button:last-child{border-radius:0 8px 8px 0}.lightbox{position:fixed;top:0;right:0;bottom:0;left:0;background:#000000d1;display:flex;flex-direction:column;align-items:center;justify-content:center;z-index:999;padding:24px;cursor:zoom-out}.lightbox img{max-width:92vw;max-height:84vh;border-radius:10px;object-fit:contain;box-shadow:0 10px 40px #00000080;background:var(--card);cursor:default}.lightbox-cap{color:#fff;margin-top:10px;font-weight:500;text-align:center}