:root { --bg:#f4f5f7; --card:#fff; --line:#e2e5ea; --text:#1f2329; --muted:#7a828e; --accent:#2f6fed; --danger:#d64545; --ok:#2e9e5b; }
* { box-sizing: border-box; }
body { margin:0; font-family:-apple-system,'PingFang SC','Microsoft YaHei',sans-serif; background:var(--bg); color:var(--text); font-size:14px; }
header { display:flex; align-items:center; gap:18px; padding:10px 20px; background:var(--card); border-bottom:1px solid var(--line); }
.brand { font-weight:700; font-size:15px; white-space:nowrap; }
#nav { display:flex; gap:4px; flex:1; align-items:center; }
#nav a { padding:6px 12px; border-radius:6px; text-decoration:none; color:var(--text); }
#nav a:hover { background:#eef2f8; }
.nav-user { margin-left:auto; color:var(--muted); }
main { max-width:1080px; margin:20px auto; padding:0 16px; }
.card { background:var(--card); border:1px solid var(--line); border-radius:10px; padding:16px 18px; margin-bottom:16px; }
h2 { margin:0 0 12px; font-size:16px; }
h3 { margin:14px 0 8px; font-size:14px; }
table { width:100%; border-collapse:collapse; }
th, td { text-align:left; padding:7px 9px; border-bottom:1px solid var(--line); vertical-align:top; }
th { color:var(--muted); font-weight:600; white-space:nowrap; }
tr:last-child td { border-bottom:none; }
.muted { color:var(--muted); }
.small { font-size:12px; }
a { color:var(--accent); text-decoration:none; }
button { border:1px solid var(--line); background:#fff; border-radius:6px; padding:6px 12px; cursor:pointer; }
button:hover { border-color:#b9c4d4; }
button.primary { background:var(--accent); border-color:var(--accent); color:#fff; }
button.danger { color:var(--danger); }
button.ghost { border:none; background:none; padding:2px 6px; color:var(--accent); }
form.inline { display:flex; flex-wrap:wrap; gap:10px; align-items:flex-end; }
label { display:flex; flex-direction:column; gap:4px; font-size:12px; color:var(--muted); }
input, select, textarea { padding:7px 9px; border:1px solid var(--line); border-radius:6px; font-size:14px; background:#fff; }
input:focus, select:focus, textarea:focus { outline:2px solid #d4e2ff; }
textarea { min-width:280px; min-height:56px; }
.tag { display:inline-block; padding:1px 8px; border-radius:10px; font-size:12px; background:#eef2f8; }
.tag.high { background:#fdeaea; color:var(--danger); }
.tag.urgent { background:#fdeaea; color:var(--danger); }
.tag.critical { background:#fdeaea; color:var(--danger); }
.tag.done { background:#e8f6ee; color:var(--ok); }
.row-actions { display:flex; gap:6px; align-items:center; }
#toast { position:fixed; right:18px; bottom:18px; display:flex; flex-direction:column; gap:8px; z-index:99; }
.toast { padding:10px 16px; border-radius:8px; background:#2b2f36; color:#fff; font-size:13px; box-shadow:0 4px 14px rgba(0,0,0,.18); }
.toast-error { background:var(--danger); }
.login-wrap { max-width:360px; margin:80px auto; }
.login-wrap form { display:flex; flex-direction:column; gap:12px; }
.login-wrap input { width:100%; }
.kv { display:grid; grid-template-columns:120px 1fr; gap:6px 12px; }
.kv .k { color:var(--muted); }
.steps { display:flex; flex-wrap:wrap; gap:8px; align-items:center; }
@media (max-width:720px) { main { padding:0 8px; } .kv { grid-template-columns:1fr; } }