:root { --bg:#f3f4f6; --card:#fff; --line:#e5e7eb; --text:#111827; --muted:#6b7280; --brand:#2563eb; --brand-dark:#1d4ed8; --sidebar:#111827; }
* { box-sizing:border-box; margin:0; padding:0; }
body { font-family:"Segoe UI","Microsoft YaHei",system-ui,sans-serif; background:var(--bg); color:var(--text); font-size:14px; }
.layout { display:flex; min-height:100vh; }
.sidebar { width:220px; background:var(--sidebar); color:#9ca3af; position:fixed; top:0; bottom:0; display:flex; flex-direction:column; z-index:10; }
.sidebar .brand { color:#fff; font-size:16px; font-weight:700; padding:22px 20px 18px; border-bottom:1px solid #1f2937; }
.sidebar nav { flex:1; padding-top:10px; }
.sidebar nav a { display:block; padding:11px 22px; color:#9ca3af; text-decoration:none; border-left:3px solid transparent; }
.sidebar nav a:hover { color:#fff; background:#1f2937; }
.sidebar nav a.active { color:#fff; background:#1f2937; border-left-color:var(--brand); }
.sidebar .me { padding:14px 20px; border-top:1px solid #1f2937; }
.sidebar .me .name { color:#e5e7eb; font-weight:600; }
.sidebar .me .logout { cursor:pointer; color:#9ca3af; font-size:12px; margin-top:4px; }
.sidebar .me .logout:hover { color:#fff; }
.main { margin-left:220px; flex:1; padding:26px 30px; min-width:0; }
h1 { font-size:20px; margin-bottom:18px; }
.card { background:var(--card); border:1px solid var(--line); border-radius:10px; padding:18px 20px; margin-bottom:16px; }
.card h2 { font-size:15px; margin-bottom:12px; }
.stat-grid { display:grid; grid-template-columns:repeat(auto-fit,minmax(180px,1fr)); gap:14px; margin-bottom:18px; }
.stat { background:var(--card); border:1px solid var(--line); border-radius:10px; padding:16px 18px; }
.stat .num { font-size:26px; font-weight:700; }
.stat .label { color:var(--muted); margin-top:4px; }
table { width:100%; border-collapse:collapse; }
th,td { text-align:left; padding:9px 10px; border-bottom:1px solid var(--line); vertical-align:middle; }
th { color:var(--muted); font-weight:600; font-size:12px; background:#fafafa; }
tr:hover td { background:#fafafa; }
.pill { display:inline-block; padding:2px 10px; border-radius:999px; font-size:12px; color:#fff; }
.btn { display:inline-block; padding:7px 14px; border-radius:7px; border:1px solid var(--line); background:#fff; color:var(--text); cursor:pointer; font-size:13px; text-decoration:none; }
.btn:hover { border-color:#d1d5db; background:#f9fafb; }
.btn-primary { background:var(--brand); border-color:var(--brand); color:#fff; }
.btn-primary:hover { background:var(--brand-dark); }
.btn-danger { color:#dc2626; border-color:#fecaca; }
.btn-danger:hover { background:#fef2f2; }
.btn-sm { padding:4px 9px; font-size:12px; }
input,select,textarea { padding:7px 10px; border:1px solid #d1d5db; border-radius:7px; font-size:13px; font-family:inherit; background:#fff; }
input:focus,select:focus,textarea:focus { outline:none; border-color:var(--brand); }
label { display:block; font-size:12px; color:var(--muted); margin:10px 0 4px; }
.form-row { display:grid; grid-template-columns:1fr 1fr; gap:0 16px; }
.form-row-3 { display:grid; grid-template-columns:1fr 1fr 1fr; gap:0 16px; }
.toolbar { display:flex; gap:10px; align-items:center; margin-bottom:16px; flex-wrap:wrap; }
.toolbar input[type=text] { width:240px; }
.muted { color:var(--muted); font-size:12px; }
.overdue { color:#dc2626; font-weight:600; }
.due-soon { color:#d97706; }
.tag { display:inline-block; background:#eef2ff; color:#4338ca; font-size:12px; border-radius:6px; padding:2px 8px; margin:0 4px 4px 0; }
.modal-mask { display:none; position:fixed; inset:0; background:rgba(0,0,0,.4); z-index:50; align-items:flex-start; justify-content:center; padding:60px 16px 180px; overflow:auto; }
.modal-mask.show { display:flex; }
.modal { background:#fff; border-radius:12px; width:100%; max-width:560px; padding:22px 24px; }
.modal h3 { margin-bottom:6px; }
.modal .foot { display:flex; justify-content:flex-end; gap:10px; margin-top:18px; }
.empty { color:var(--muted); text-align:center; padding:26px 0; }
a.link { color:var(--brand); text-decoration:none; }
a.link:hover { text-decoration:underline; }
.kv { display:grid; grid-template-columns:110px 1fr; row-gap:8px; font-size:13px; }
.kv .k { color:var(--muted); }
.hd { display:flex; align-items:center; gap:12px; margin-bottom:18px; flex-wrap:wrap; }
.hd h1 { margin-bottom:0; }
.notice { background:#fffbeb; border:1px solid #fde68a; color:#92400e; border-radius:10px; padding:14px 18px; margin-bottom:16px; }