:root{--bg: #f5f7fb;--card: #ffffff;--line: #e6ebf3;--line2: #eef2f8;--text: #14181f;--sub: #66707f;--faint: #98a2b1;--blue: #2b6cff;--blue-soft: #eaf1ff;--ok: #10a36a;--ok-soft: #e6f7ef;--warn: #c07a00;--warn-soft: #fff5e3;--bad: #d93a3a;--bad-soft: #fdecec;--radius: 14px}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text);font:14px/1.55 -apple-system,BlinkMacSystemFont,PingFang SC,Microsoft YaHei,Segoe UI,sans-serif;-webkit-font-smoothing:antialiased}button,input,textarea,select{font:inherit;color:inherit}a{color:var(--blue);text-decoration:none}.layout{display:flex;min-height:100vh}.side{width:208px;flex:0 0 208px;background:#fff;border-right:1px solid var(--line);padding:18px 12px;position:sticky;top:0;height:100vh}.brand{display:flex;align-items:center;gap:10px;padding:4px 8px 18px}.brand .logo{width:32px;height:32px;border-radius:9px;background:linear-gradient(135deg,#6a3cff,#16d2e8);color:#fff;font-weight:800;font-size:13px;display:flex;align-items:center;justify-content:center}.brand b{font-size:15px;letter-spacing:.2px}.brand span{display:block;font-size:11px;color:var(--faint);font-weight:400}.nav-item{display:flex;align-items:center;justify-content:space-between;padding:9px 12px;border-radius:10px;cursor:pointer;color:var(--sub);margin-bottom:2px;-webkit-user-select:none;user-select:none}.nav-item:hover{background:#f7f9fd;color:var(--text)}.nav-item.on{background:var(--blue-soft);color:var(--blue);font-weight:600}.nav-item .dot{min-width:18px;height:18px;border-radius:9px;background:var(--bad);color:#fff;font-size:11px;line-height:18px;text-align:center;padding:0 5px}.main{flex:1;padding:22px 26px 60px;max-width:1400px}.top{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px}.top h1{font-size:19px;margin:0;font-weight:700}.top .sub{color:var(--faint);font-size:12px;margin-top:3px}.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:16px 18px;margin-bottom:14px}.card h3{margin:0 0 12px;font-size:14px;font-weight:650}.card .hint{color:var(--faint);font-size:12px}.grid{display:grid;gap:12px}.g2{grid-template-columns:repeat(2,minmax(0,1fr))}.g3{grid-template-columns:repeat(3,minmax(0,1fr))}.g4{grid-template-columns:repeat(4,minmax(0,1fr))}@media (max-width: 900px){.layout{display:block}.side{width:auto;height:auto;position:static;border-right:0;border-bottom:1px solid var(--line);display:flex;flex-wrap:wrap;gap:4px}.brand{width:100%}.g2,.g3,.g4{grid-template-columns:1fr}.main{padding:16px}}.stat{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:14px 16px}.stat .k{color:var(--sub);font-size:12px}.stat .v{font-size:24px;font-weight:720;margin-top:4px;letter-spacing:-.5px}.stat .v.small{font-size:16px;font-weight:600;margin-top:8px}.row{display:flex;gap:8px;align-items:center;flex-wrap:wrap}.spacer{flex:1}.btn{border:1px solid var(--line);background:#fff;color:var(--text);padding:8px 14px;border-radius:10px;cursor:pointer;font-size:13px}.btn:hover{background:#f8fafd}.btn.primary{background:var(--blue);border-color:var(--blue);color:#fff}.btn.primary:hover{filter:brightness(1.05)}.btn.ghost{border-color:transparent;color:var(--blue);background:transparent;padding:6px 8px}.btn.danger{color:var(--bad);border-color:#f3c9c9}.btn.sm{padding:5px 10px;font-size:12px;border-radius:8px}.btn:disabled{opacity:.55;cursor:default}input[type=text],input[type=password],input[type=number],textarea,select{width:100%;border:1px solid var(--line);border-radius:10px;padding:9px 12px;background:#fff;outline:none}input:focus,textarea:focus,select:focus{border-color:#b9cdff;box-shadow:0 0 0 3px #eaf1ff}textarea{resize:vertical;min-height:96px}label.field{display:block;margin-bottom:10px}label.field>span{display:block;font-size:12px;color:var(--sub);margin-bottom:5px}table{width:100%;border-collapse:collapse;font-size:13px}th{text-align:left;color:var(--faint);font-weight:500;font-size:12px;padding:8px;border-bottom:1px solid var(--line);white-space:nowrap}td{padding:10px 8px;border-bottom:1px solid var(--line2);vertical-align:middle}tr:last-child td{border-bottom:0}.mono{font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:12.5px}.tag{display:inline-block;padding:2px 8px;border-radius:999px;font-size:11.5px}.tag.ok{background:var(--ok-soft);color:var(--ok)}.tag.warn{background:var(--warn-soft);color:var(--warn)}.tag.bad{background:var(--bad-soft);color:var(--bad)}.tag.gray{background:#f1f4f9;color:var(--sub)}.tag.blue{background:var(--blue-soft);color:var(--blue)}.empty{text-align:center;color:var(--faint);padding:28px 0;font-size:13px}.chat{display:grid;grid-template-columns:300px 1fr;gap:14px}.thread{padding:11px 12px;border-bottom:1px solid var(--line2);cursor:pointer}.thread:hover{background:#f8fafd}.thread.on{background:var(--blue-soft)}.thread .t{display:flex;justify-content:space-between;gap:8px;font-size:13px}.thread .m{color:var(--faint);font-size:12px;margin-top:3px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.msgs{height:460px;overflow:auto;padding:6px 4px;background:#fafbfe;border-radius:12px}.bubble{max-width:68%;padding:9px 12px;border-radius:12px;margin:8px 0;font-size:13.5px;white-space:pre-wrap;word-break:break-word}.bubble.user{background:#fff;border:1px solid var(--line)}.bubble.admin{background:var(--blue);color:#fff;margin-left:auto}.bubble .tm{display:block;font-size:10.5px;opacity:.6;margin-top:3px}.login{max-width:360px;margin:14vh auto}.login .card{padding:22px}.err{color:var(--bad);font-size:12.5px;margin-top:8px}.toast{position:fixed;left:50%;bottom:28px;transform:translate(-50%);background:#14181f;color:#fff;padding:10px 16px;border-radius:10px;font-size:13px;z-index:50;box-shadow:0 8px 24px #0000002e}