:root{
  --primary:#2563eb; --primary-dark:#1d4ed8; --primary-light:#3b82f6;
  --primary-50:#eff6ff; --bg:#f5f7fa; --card:#fff;
  --text:#111827; --muted:#6b7280; --border:#e5e7eb; --danger:#dc2626;
  --success:#16a34a; --warning:#d97706; --shadow:0 1px 3px rgba(0,0,0,.08);
}
*{box-sizing:border-box}
body{margin:0;font-family:"Microsoft YaHei","PingFang SC",system-ui,"Segoe UI",sans-serif;background:var(--bg);color:var(--text);-webkit-font-smoothing:antialiased}
[v-cloak]{display:none}
header{background:var(--card);border-bottom:1px solid var(--border);box-shadow:var(--shadow);padding:0 24px;display:flex;align-items:center;justify-content:space-between;position:sticky;top:0;z-index:10}
.brand{font-weight:700;font-size:18px;color:var(--primary);padding:14px 0;display:flex;align-items:center;gap:8px;white-space:nowrap}
.brand .logo{width:30px;height:30px;border-radius:8px;background:linear-gradient(135deg,var(--primary),var(--primary-light));display:inline-flex;align-items:center;justify-content:center;font-size:16px}
nav{display:flex;align-items:center;gap:2px}
nav a{display:inline-flex;align-items:center;padding:16px 13px;cursor:pointer;color:var(--muted);text-decoration:none;border-bottom:2px solid transparent;font-size:15px;transition:color .15s,background .15s}
nav a.active,nav a:hover{color:var(--primary);border-bottom-color:var(--primary);background:var(--primary-50)}
nav .logout{margin-left:12px;padding:7px 14px;border:1px solid var(--border);border-radius:8px;background:#fff;color:#ef4444;cursor:pointer;font-size:13px;font-weight:500}
nav .logout:hover{background:#fef2f2;border-color:#fecaca;filter:none}
nav .role-badge{padding:3px 10px;border-radius:20px;font-size:12px;font-weight:600;margin-left:8px}
nav .role-badge.parent{background:var(--primary-50);color:var(--primary)}
nav .role-badge.child{background:#f0fdf4;color:#15803d}
main{padding:28px;max-width:1140px;margin:0 auto}
.card{background:var(--card);border:1px solid var(--border);border-radius:12px;padding:22px;margin-bottom:18px;box-shadow:var(--shadow)}
.card h3{margin-top:0;color:var(--text);font-size:17px;display:flex;align-items:center;gap:8px}
.card h3::before{content:"";width:4px;height:18px;background:var(--primary);border-radius:2px;display:inline-block}
.auth-wrap{display:flex;justify-content:center;align-items:flex-start;padding-top:60px}
.auth-card{width:380px;max-width:94vw}
.auth-card h2{color:var(--primary);margin-top:0}
label{display:block;margin-bottom:12px;font-size:14px;color:var(--muted)}
input,select,textarea{width:100%;padding:9px 10px;border:1px solid var(--border);border-radius:6px;font-size:14px;font-family:inherit}
textarea{min-height:90px;resize:vertical}
input:focus,select:focus,textarea:focus{outline:2px solid var(--primary-light);border-color:transparent}
button{background:var(--primary);color:#fff;border:none;border-radius:8px;padding:9px 18px;font-size:14px;cursor:pointer;transition:all .15s ease;font-weight:500}
button:hover{filter:brightness(1.08)}
button:active{transform:translateY(1px)}
button.ghost{background:#fff;color:var(--primary);border:1px solid var(--primary)}
button.ghost:hover{background:#eff6ff;filter:none}
button.danger{background:var(--danger)}
button.small{padding:5px 12px;font-size:13px}
button:disabled{opacity:.5;cursor:not-allowed}
.row{display:flex;gap:10px;flex-wrap:wrap;align-items:center}
.col{display:flex;flex-direction:column;gap:8px}
.error{color:var(--danger);font-size:13px}
.success{color:var(--success);font-size:13px}
.hint{font-size:12px;color:var(--muted);margin-top:12px}
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:14px}
.tag{display:inline-block;background:#eef2ff;color:var(--primary);border-radius:20px;padding:2px 10px;font-size:12px;margin:2px}
.task{background:#f9fafb;border:1px solid var(--border);border-radius:8px;padding:14px;margin-bottom:12px}
.task h4{margin:0 0 6px}
.task .field{margin-top:8px}
.task .field b{color:var(--muted);font-weight:600}
.fold-toggle{cursor:pointer;user-select:none;color:var(--primary);font-weight:600;font-size:13px}
.fold-toggle:hover{text-decoration:underline}
table{width:100%;border-collapse:collapse;background:#fff}
th,td{border:1px solid var(--border);padding:8px 10px;text-align:left;font-size:14px;vertical-align:top}
th{background:#f9fafb}
.md-body{line-height:1.8}
.md-body h1{color:var(--primary);border-bottom:2px solid var(--primary);padding-bottom:6px}
.md-body h2{color:var(--primary);margin-top:20px}
.md-body h3{color:var(--text)}
.md-body table{border-collapse:collapse;width:100%;margin:10px 0}
.md-body td,.md-body th{border:1px solid var(--border);padding:6px 10px}
.loading{text-align:center;color:var(--muted);padding:40px}
.search{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:12px;align-items:center}
.search label{display:inline-flex;align-items:center;gap:6px;width:auto;margin:0}
.search input,.search select{width:auto}
@media(max-width:640px){ nav a{padding:10px 8px} .brand{font-size:15px} main{padding:14px}}