:root{--bg:#f5f4f0;--card:#fff;--line:#e6e3da;--ink:#2c2c2a;--ink-2:#6b6962;--ink-3:#8a877f;--accent:#9a7b3c;--ok-bg:#eaf3ea;--ok:#2f6b34;--err-bg:#fcebeb;--err:#a32d2d;--warn-bg:#fdf3dc;--warn:#7a5a12;--radius:10px}*{box-sizing:border-box}html,body{margin:0}body{background:var(--bg);color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,PingFang TC,Noto Sans TC,Microsoft JhengHei,sans-serif;font-size:15px;line-height:1.7}a{color:var(--ink);text-underline-offset:3px}h1{margin:0 0 12px;font-size:26px;line-height:1.3}h2{margin:28px 0 10px;font-size:18px}.muted{color:var(--ink-2)}.small{font-size:13px}.shell{min-height:100vh}.top{background:var(--card);border-bottom:1px solid var(--line);flex-wrap:wrap;align-items:center;gap:24px;padding:10px 24px;display:flex}.brand{align-items:center;gap:8px;font-size:17px;font-weight:700;text-decoration:none;display:flex}.top nav{flex-wrap:wrap;flex:1;gap:18px;display:flex}.top nav a{color:var(--ink-2);text-decoration:none}.top nav a:hover{color:var(--ink)}.me{align-items:center;gap:10px;font-size:14px;display:flex}.main{max-width:980px;margin:0 auto;padding:28px 20px 80px}.card{background:var(--card);border:1px solid var(--line);border-radius:14px;margin:16px 0;padding:18px 20px}.btn{border-radius:var(--radius);background:var(--card);height:38px;color:var(--ink);cursor:pointer;border:1px solid #d9d5ca;justify-content:center;align-items:center;gap:6px;padding:0 16px;font-size:14px;font-weight:600;text-decoration:none;display:inline-flex}.btn:hover{border-color:var(--ink)}.btn.primary{background:var(--ink);border-color:var(--ink);color:#fff}.btn.primary:hover{background:#444441}.btn.danger{background:var(--err);border-color:var(--err);color:#fff}.btn:disabled{opacity:.55;cursor:not-allowed}.btn.small{height:30px;padding:0 10px;font-size:13px}.link{color:var(--ink-2);cursor:pointer;background:0 0;border:none;padding:0;font-size:14px;text-decoration:underline}.msg{border-radius:8px;margin-left:10px;padding:2px 10px;font-size:14px}p.msg{margin:12px 0;padding:10px 12px;display:block}.msg.ok{background:var(--ok-bg);color:var(--ok)}.msg.err{background:var(--err-bg);color:var(--err)}.tag{color:var(--ink-2);white-space:nowrap;background:#efece4;border-radius:99px;margin-left:6px;padding:1px 8px;font-size:12px;display:inline-block}.tag.confirmed{background:var(--ok-bg);color:var(--ok)}.tag.draft{background:var(--warn-bg);color:var(--warn)}.tag.obsolete{color:var(--ink-3);background:#e9e7e2;text-decoration:line-through}.tag.stale{background:var(--err-bg);color:var(--err)}.banner{border-radius:var(--radius);margin-bottom:14px;padding:10px 14px;font-size:14px}.banner.draft,.banner.stale{background:var(--warn-bg);color:var(--warn)}.banner.obsolete{color:var(--ink-2);background:#e9e7e2}.form{flex-direction:column;gap:14px;display:flex}.grid{grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:14px;display:grid}.field{flex-direction:column;gap:5px;display:flex}.field-label{color:#444441;font-size:13.5px;font-weight:600}.field-label em{color:var(--err);font-style:normal}.field-hint{color:var(--ink-3);font-size:12.5px}.field-err{color:var(--err);font-size:12.5px}.field input,.field select,.field textarea,.filters input,.filters select,.ask input{font:inherit;border-radius:var(--radius);color:var(--ink);background:#fdfcfa;border:1px solid #d9d5ca;padding:8px 12px;font-size:15px}.field textarea{resize:vertical;font-family:ui-monospace,SF Mono,Menlo,monospace;font-size:14px;line-height:1.6}.field.has-err input,.field.has-err select,.field.has-err textarea{border-color:var(--err)}.form-actions{flex-wrap:wrap;align-items:center;gap:6px;display:flex}.check-row{flex-wrap:wrap;gap:8px 18px;margin-bottom:12px;display:flex}.check{align-items:center;gap:6px;font-size:14px;display:inline-flex}.filters{flex-wrap:wrap;gap:8px;margin:12px 0 18px;display:flex}.filters input{flex:1;min-width:200px}.tabs{flex-wrap:wrap;gap:6px;margin:14px 0;display:flex}.tabs a{border:1px solid var(--line);background:var(--card);border-radius:99px;padding:5px 12px;font-size:14px;text-decoration:none}.tabs a.on{background:var(--ink);color:#fff;border-color:var(--ink)}.ask form{gap:8px;display:flex}.ask input{flex:1;height:48px;font-size:16px}.ask .btn{height:48px;padding:0 22px}.answer{margin-top:16px}.sources{border-top:1px solid var(--line);margin:14px 0 0;padding-top:12px;padding-left:22px;font-size:14px}.sources li{margin:4px 0}.sources li .muted.small{margin-left:8px}.list{margin:0;padding:0;list-style:none}.list li{border-bottom:1px solid var(--line);justify-content:space-between;gap:12px;padding:9px 0;display:flex}.table{border-collapse:collapse;background:var(--card);border:1px solid var(--line);border-radius:12px;width:100%;font-size:14px;overflow:hidden}.table th,.table td{text-align:left;border-bottom:1px solid var(--line);vertical-align:top;padding:9px 12px}.table th{color:#444441;white-space:nowrap;background:#faf9f6;font-weight:600}.table tr.muted td{color:var(--ink-3)}.stats{grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:10px;display:grid}.stats div{background:var(--card);border:1px solid var(--line);border-radius:12px;flex-direction:column;padding:12px 14px;display:flex}.stats b{font-size:24px}.stats span{color:var(--ink-2);font-size:13px}.lead{color:var(--ink-2);margin:0 0 14px;font-size:17px}.meta{background:var(--card);border:1px solid var(--line);border-radius:12px;grid-template-columns:repeat(auto-fill,minmax(180px,1fr));gap:8px 18px;margin:0 0 16px;padding:14px 16px;display:grid}.meta div{flex-direction:column;display:flex}.meta dt{color:var(--ink-3);font-size:12px}.meta dd{margin:0;font-size:14px}.actions{flex-wrap:wrap;align-items:center;gap:10px;margin-bottom:18px;display:flex}.prose{background:var(--card);border:1px solid var(--line);overflow-wrap:anywhere;border-radius:12px;padding:6px 24px 16px}.answer .prose{border:none;padding:0}.prose h2{border-bottom:1px solid var(--line);margin:22px 0 8px;padding-bottom:4px;font-size:18px}.prose h3{margin:18px 0 6px;font-size:16px}.prose table{border-collapse:collapse;margin:10px 0}.prose th,.prose td{border:1px solid var(--line);padding:6px 10px}.prose code{background:#f1efe8;border-radius:5px;padding:1px 5px;font-size:13.5px}.prose blockquote{border-left:3px solid var(--accent);color:var(--ink-2);margin:10px 0;padding:4px 14px}details summary{cursor:pointer;font-weight:600}details[open] summary{margin-bottom:10px}.auth{justify-content:center;align-items:center;min-height:100vh;padding:24px 16px;display:flex}.auth .card{max-width:420px}@media (max-width:640px){.top{gap:10px;padding:10px 16px}.main{padding:20px 16px 60px}.table{display:block;overflow-x:auto}.list li{flex-direction:column;gap:2px}.prose{padding:4px 16px 12px}}