/* 后台样式 */
* { box-sizing: border-box; margin: 0; padding: 0; }
body { font-family: -apple-system, "Segoe UI", "Microsoft YaHei", sans-serif; background: #f4f6fb; color: #2c3e50; display: flex; min-height: 100vh; }

.sidebar { width: 220px; background: linear-gradient(180deg,#1e293b,#0f172a); color: #cbd5e1; padding: 20px 0; flex-shrink: 0; }
.brand { padding: 8px 22px 22px; font-size: 18px; font-weight: 700; color: #fff; border-bottom: 1px solid rgba(255,255,255,.08); }
.brand small { display:block; font-size:12px; font-weight:400; color:#94a3b8; margin-top:4px; }
.sidebar nav { display: flex; flex-direction: column; margin-top: 12px; }
.sidebar nav a { color: #cbd5e1; text-decoration: none; padding: 11px 22px; border-left: 3px solid transparent; transition: .15s; }
.sidebar nav a:hover { background: rgba(255,255,255,.05); color:#fff; }
.sidebar nav a.active { background: rgba(59,130,246,.15); border-left-color: #3b82f6; color:#fff; }
.sidebar nav a.muted { color:#64748b; margin-top: 20px; }

.content { flex: 1; display: flex; flex-direction: column; }
.topbar { background: #fff; padding: 16px 28px; border-bottom: 1px solid #e2e8f0; }
.topbar h1 { font-size: 20px; font-weight: 600; }
.wrap { padding: 24px 28px; }

.stats { display: grid; grid-template-columns: repeat(4,1fr); gap: 16px; margin-bottom: 20px; }
.stat-card { background:#fff; border-radius: 10px; padding: 20px; box-shadow: 0 1px 3px rgba(0,0,0,.06); }
.stat-card .num { font-size: 30px; font-weight: 700; color:#3b82f6; }
.stat-card .lbl { color:#64748b; font-size: 13px; margin-top: 4px; }

.panel { background:#fff; border-radius: 10px; padding: 20px; margin-bottom: 20px; box-shadow: 0 1px 3px rgba(0,0,0,.06); }
.panel h3 { font-size: 16px; margin-bottom: 14px; padding-bottom: 10px; border-bottom: 1px solid #f1f5f9; }
.panel h4 { font-size:14px; margin: 14px 0 8px; }
.panel ol { padding-left: 20px; line-height: 1.9; color:#475569; }

.btn { display:inline-block; padding: 7px 14px; background:#e2e8f0; color:#334155; border:none; border-radius:6px; font-size:13px; cursor:pointer; text-decoration:none; transition:.15s; }
.btn:hover { background:#cbd5e1; }
.btn-primary { background:#3b82f6; color:#fff; }
.btn-primary:hover { background:#2563eb; }
.btn-danger { background:#ef4444; color:#fff; }
.btn-danger:hover { background:#dc2626; }
.btn-block { width:100%; }
.btn-sm { padding:4px 9px; font-size:12px; }

.inline-form { display:flex; gap:8px; flex-wrap:wrap; align-items:center; }
.inline-form input[type=text], .inline-form input[type=password], .inline-form input[type=file] { padding:7px 10px; border:1px solid #cbd5e1; border-radius:6px; font-size:13px; }
.form-grid { display:grid; gap:12px; max-width: 520px; }
.form-grid label { display:block; font-size:13px; color:#475569; }
.form-grid input[type=text] { width:100%; padding:8px 10px; border:1px solid #cbd5e1; border-radius:6px; }

.check { display:inline-flex; align-items:center; gap:4px; font-size:13px; }

.hint { color:#94a3b8; font-size:12px; margin-top:8px; }
.muted { color:#94a3b8; }
code { background:#f1f5f9; padding:2px 6px; border-radius:4px; font-size:12px; word-break: break-all; }

.alert { padding:10px 14px; border-radius:6px; margin-bottom:14px; font-size:13px; }
.alert-success { background:#dcfce7; color:#166534; }
.alert-error { background:#fee2e2; color:#991b1b; }

.tpl-grid { display:grid; grid-template-columns: repeat(auto-fill, minmax(200px,1fr)); gap:14px; }
.tpl-card { border:1px solid #e2e8f0; border-radius:8px; overflow:hidden; }
.tpl-thumb img { width:100%; height:120px; object-fit:cover; display:block; }
.tpl-meta { padding:10px; }
.tpl-meta strong { display:block; font-size:13px; margin-bottom:4px; }
.tpl-meta span { font-size:12px; color:#64748b; }
.tpl-actions { margin-top:8px; display:flex; gap:6px; }

.user-card { border:1px solid #e2e8f0; border-radius:8px; padding:14px; margin-bottom:14px; }
.user-head { display:flex; align-items:center; gap:10px; margin-bottom:10px; }
.user-fields { display:grid; gap:6px; margin-bottom:10px; }
.user-fields > div { display:flex; align-items:center; gap:8px; font-size:13px; }
.user-fields span { width:50px; color:#64748b; }
.user-fields code { flex:1; }

.badge { font-size:11px; padding:2px 8px; border-radius:10px; }
.badge-ok { background:#dcfce7; color:#166534; }
.badge-off { background:#fee2e2; color:#991b1b; }

.table { width:100%; border-collapse:collapse; font-size:13px; }
.table th, .table td { padding:9px 10px; border-bottom:1px solid #f1f5f9; text-align:left; }
.table th { color:#64748b; font-weight:600; background:#f8fafc; }
.pager { margin-top:14px; display:flex; gap:6px; flex-wrap:wrap; }
.code { background:#0f172a; color:#e2e8f0; padding:12px; border-radius:6px; font-size:12px; overflow:auto; }

/* 登录页 */
.login-body { display:flex; align-items:center; justify-content:center; background:linear-gradient(135deg,#1e293b,#0f172a); }
.login-card { background:#fff; padding:32px; border-radius:12px; width:340px; box-shadow:0 10px 40px rgba(0,0,0,.3); }
.login-card h2 { text-align:center; margin-bottom:20px; font-size:18px; }
.login-card label { display:block; font-size:13px; margin-bottom:14px; color:#475569; }
.login-card input { width:100%; padding:10px; border:1px solid #cbd5e1; border-radius:6px; margin-top:4px; font-size:14px; }
.login-card .hint { text-align:center; margin-top:14px; }

@media (max-width:760px){
  body{ flex-direction:column; }
  .sidebar{ width:100%; }
  .stats{ grid-template-columns:repeat(2,1fr); }
}