:root{--bg:#f4f6fa;--card:#fff;--text:#111827;--muted:#6b7280;--line:#e5e7eb;--accent:#0866FF;--good:#16a34a;--bad:#dc2626;--warn:#d97706}
*{box-sizing:border-box}
body{margin:0;font:15px/1.5 system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;background:var(--bg);color:var(--text)}
a{color:var(--accent)}
header{background:var(--card);border-bottom:1px solid var(--line);padding:12px 20px;display:flex;align-items:center;gap:16px;flex-wrap:wrap}
header b{font-size:17px}
nav{display:flex;gap:4px;flex-wrap:wrap}
nav button{background:none;border:0;padding:8px 12px;border-radius:8px;cursor:pointer;font:inherit;color:var(--muted)}
nav button.on{background:#eef4ff;color:var(--accent);font-weight:600}
header .right{margin-left:auto;display:flex;gap:10px;align-items:center;color:var(--muted);font-size:13px}
main{max-width:1200px;margin:0 auto;padding:20px 16px}
.card{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:16px;margin-bottom:16px}
.card h2{margin:0 0 12px;font-size:17px}
.stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(170px,1fr));gap:12px;margin-bottom:16px}
.stat{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:14px}
.stat small{color:var(--muted);display:block}
.stat b{font-size:22px}
table{width:100%;border-collapse:collapse;font-size:14px}
th,td{text-align:left;padding:8px;border-bottom:1px solid var(--line);vertical-align:top}
th{color:var(--muted);font-weight:500;white-space:nowrap}
td.num,th.num{text-align:right;white-space:nowrap}
.scroll{overflow-x:auto}
tr.click{cursor:pointer}tr.click:hover{background:#f9fafb}
input,select,textarea{font:inherit;color:inherit;background:#fff;border:1px solid #d1d5db;border-radius:8px;padding:8px 10px;width:100%}
textarea{min-height:90px;resize:vertical}
textarea.big{min-height:360px;font-family:ui-monospace,Menlo,Consolas,monospace;font-size:13px}
label{display:block;margin-bottom:12px}
label>span{display:block;font-size:13px;color:var(--muted);margin-bottom:4px}
.grid2{display:grid;grid-template-columns:1fr 1fr;gap:0 16px}
@media (max-width:700px){.grid2{grid-template-columns:1fr}}
button.btn{background:var(--accent);color:#fff;border:0;border-radius:8px;padding:9px 16px;font:inherit;cursor:pointer}
button.btn.light{background:#eef1f6;color:var(--text)}
button.btn.danger{background:#fee2e2;color:var(--bad)}
button.btn:disabled{opacity:.5}
.row{display:flex;gap:10px;align-items:center;flex-wrap:wrap}
.muted{color:var(--muted)}
.good{color:var(--good)}.bad{color:var(--bad)}.warn{color:var(--warn)}
.tag{display:inline-block;padding:1px 8px;border-radius:10px;font-size:12px;background:#eef1f6}
.tag.new{background:#dcfce7;color:#166534}.tag.urgent{background:#fee2e2;color:#991b1b}
.chatlog{display:flex;flex-direction:column;gap:6px;max-height:60vh;overflow-y:auto;background:var(--bg);padding:12px;border-radius:10px}
.chatlog div{max-width:80%;padding:7px 11px;border-radius:12px;white-space:pre-wrap;background:#fff}
.chatlog .user{align-self:flex-end;background:#dbeafe}
.chatlog small{display:block;color:var(--muted);font-size:11px}
pre.code{background:#111827;color:#e5e7eb;padding:12px;border-radius:8px;overflow-x:auto;font-size:13px;white-space:pre-wrap;word-break:break-all}
.toast{position:fixed;bottom:20px;left:50%;transform:translateX(-50%);background:#111827;color:#fff;padding:10px 16px;border-radius:10px;z-index:10}
.login{max-width:360px;margin:12vh auto}