/* 本地样式表（不引入任何 CDN，保证内网可用，DD-08 §9.2-4） */
:root {
  --bg: #f5f6f8;
  --card: #ffffff;
  --text: #1f2329;
  --muted: #6b7280;
  --line: #e3e6ea;
  --primary: #2f6fed;
  --danger: #d64545;
  --ok: #1f9254;
  --warn: #b26a00;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: -apple-system, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  background: var(--bg);
  color: var(--text);
  font-size: 14px;
}
a { color: var(--primary); text-decoration: none; }
.topbar {
  display: flex;
  align-items: center;
  gap: 24px;
  padding: 0 24px;
  height: 56px;
  background: #fff;
  border-bottom: 1px solid var(--line);
  position: sticky;
  top: 0;
  z-index: 10;
}
.brand { font-weight: 700; font-size: 16px; }
.brand span { color: var(--muted); font-weight: 400; font-size: 12px; margin-left: 8px; }
.topbar nav { display: flex; gap: 16px; flex: 1; }
.topbar nav a { color: var(--text); padding: 6px 2px; border-bottom: 2px solid transparent; }
.topbar nav a.active { color: var(--primary); border-color: var(--primary); }
.user { display: flex; align-items: center; gap: 12px; color: var(--muted); }
.container { max-width: 1180px; margin: 24px auto; padding: 0 24px 64px; }
.page-title { font-size: 20px; margin: 0 0 6px; }
.muted { color: var(--muted); }
.small { font-size: 12px; }
.mono { font-family: ui-monospace, SFMono-Regular, Consolas, monospace; }
.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 16px;
  margin: 16px 0;
}
.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); gap: 12px; }
.metric { display: flex; flex-direction: column; gap: 8px; }
.metric .label { color: var(--muted); font-size: 12px; }
.metric strong { font-size: 22px; }
.table { width: 100%; border-collapse: collapse; background: #fff; border: 1px solid var(--line); border-radius: 10px; overflow: hidden; margin: 16px 0; }
.table th, .table td { padding: 10px 12px; border-bottom: 1px solid var(--line); text-align: left; vertical-align: top; }
.table th { background: #fafbfc; font-weight: 600; color: var(--muted); font-size: 12px; }
.table tr:last-child td { border-bottom: none; }
.actions { display: flex; gap: 6px; flex-wrap: wrap; }
.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  border: 1px solid var(--line);
  background: #fff;
  color: var(--text);
  padding: 6px 12px;
  border-radius: 8px;
  cursor: pointer;
  font-size: 13px;
}
.btn:hover { border-color: #c9ced6; }
.btn-primary { background: var(--primary); border-color: var(--primary); color: #fff; }
.btn-danger { color: var(--danger); border-color: #f0c4c4; }
.btn-ghost { background: transparent; }
.btn-sm { padding: 3px 8px; font-size: 12px; }
.form-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 12px; }
.form-grid h2 { grid-column: 1 / -1; font-size: 15px; margin: 0; }
.form-grid label { display: flex; flex-direction: column; gap: 6px; color: var(--muted); font-size: 12px; }
.form-grid label.inline { flex-direction: row; align-items: center; gap: 8px; }
input, textarea, select {
  font: inherit;
  color: var(--text);
  padding: 8px 10px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
  width: 100%;
}
textarea { resize: vertical; }
.form-actions { grid-column: 1 / -1; display: flex; gap: 8px; }
.filters { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; margin: 12px 0; }
.filters input { width: auto; min-width: 180px; }
.tabs { display: flex; gap: 8px; margin: 12px 0; }
.tab { padding: 6px 14px; border: 1px solid var(--line); border-radius: 999px; color: var(--muted); background: #fff; }
.tab.active { color: #fff; background: var(--primary); border-color: var(--primary); }
.badge { display: inline-block; padding: 2px 8px; border-radius: 999px; font-size: 12px; background: #eef1f5; color: var(--muted); }
.badge.ok { background: #e6f4ec; color: var(--ok); }
.badge.warn { background: #fdf1e0; color: var(--warn); }
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
@media (max-width: 900px) { .grid-2 { grid-template-columns: 1fr; } }
.login-wrap { display: flex; justify-content: center; padding-top: 80px; }
.login-card { width: 340px; display: flex; flex-direction: column; gap: 12px; }
.login-card h1 { margin: 0; font-size: 22px; }
.login-card label { display: flex; flex-direction: column; gap: 6px; color: var(--muted); font-size: 12px; }
.error { color: var(--danger); min-height: 18px; font-size: 13px; margin: 0; }
.toast {
  position: fixed;
  right: 24px;
  bottom: 24px;
  padding: 10px 16px;
  border-radius: 8px;
  background: #2b3138;
  color: #fff;
  opacity: 0;
  transform: translateY(8px);
  transition: all .2s ease;
  pointer-events: none;
  max-width: 60vw;
}
.toast.show { opacity: 1; transform: translateY(0); }
.toast.error { background: var(--danger); }
.audio-player { display: block; margin: 12px 0; }