:root {
  --adm-bg: #0f1419;
  --adm-card: #1a2332;
  --adm-border: #2d3a4f;
  --adm-text: #e8edf4;
  --adm-muted: #8b9cb3;
  --adm-primary: #3b82f6;
  --adm-danger: #ef4444;
  --adm-success: #22c55e;
}

* { box-sizing: border-box; }

body.adm-body {
  margin: 0;
  background: var(--adm-bg);
  color: var(--adm-text);
  font-family: "PingFang SC", "Microsoft YaHei", sans-serif;
}

.adm-topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 20px;
  background: var(--adm-card);
  border-bottom: 1px solid var(--adm-border);
}

.adm-topbar h1 {
  margin: 0;
  font-size: 18px;
}

.adm-topbar nav a {
  color: var(--adm-muted);
  text-decoration: none;
  margin-left: 16px;
}

.adm-topbar nav a:hover { color: var(--adm-primary); }

.adm-container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 20px;
}

.adm-card {
  background: var(--adm-card);
  border: 1px solid var(--adm-border);
  border-radius: 12px;
  padding: 20px;
  margin-bottom: 16px;
}

.adm-btn {
  display: inline-block;
  padding: 8px 14px;
  border: none;
  border-radius: 8px;
  font-size: 13px;
  cursor: pointer;
  text-decoration: none;
  color: #fff;
  background: var(--adm-primary);
}

.adm-btn:hover { opacity: 0.9; }

.adm-btn-secondary {
  background: transparent;
  border: 1px solid var(--adm-border);
  color: var(--adm-text);
}

.adm-btn-danger { background: var(--adm-danger); }

.adm-btn-success { background: var(--adm-success); }

.adm-table {
  width: 100%;
  border-collapse: collapse;
}

.adm-table th,
.adm-table td {
  padding: 12px;
  border-bottom: 1px solid var(--adm-border);
  text-align: left;
  font-size: 14px;
}

.adm-badge {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 999px;
  font-size: 12px;
}

.adm-badge-draft { background: #f59e0b33; color: #fbbf24; }
.adm-badge-published { background: #22c55e33; color: #86efac; }

.adm-login-wrap {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
}

.adm-login-card {
  width: 360px;
  background: var(--adm-card);
  border: 1px solid var(--adm-border);
  border-radius: 12px;
  padding: 28px;
}

.adm-field { margin-bottom: 14px; }

.adm-field label {
  display: block;
  margin-bottom: 6px;
  font-size: 13px;
  color: var(--adm-muted);
}

.adm-field input,
.adm-field select,
.adm-field textarea {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid var(--adm-border);
  border-radius: 8px;
  background: #0d1117;
  color: var(--adm-text);
  font-size: 14px;
}

.adm-alert {
  padding: 10px 12px;
  border-radius: 8px;
  margin-bottom: 12px;
  font-size: 13px;
}

.adm-alert-error {
  background: #ef444422;
  border: 1px solid #ef444466;
  color: #fca5a5;
}

.adm-editor-layout {
  display: grid;
  grid-template-columns: 300px 420px 1fr;
  gap: 16px;
  min-height: calc(100vh - 70px);
}

.adm-panel {
  background: var(--adm-card);
  border: 1px solid var(--adm-border);
  border-radius: 12px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.adm-panel-head {
  padding: 12px 14px;
  border-bottom: 1px solid var(--adm-border);
  font-size: 14px;
  font-weight: 600;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
}

.adm-panel-body {
  padding: 12px;
  overflow: auto;
  flex: 1;
}

.adm-tree-item {
  padding: 8px 10px;
  border-radius: 8px;
  margin-bottom: 4px;
  cursor: pointer;
  font-size: 13px;
  border: 1px solid transparent;
}

.adm-tree-item:hover { background: #0d1117; }
.adm-tree-item.active { border-color: var(--adm-primary); background: #0d1117; }

.adm-tree-section {
  margin-bottom: 10px;
}

.adm-tree-section-title {
  font-size: 12px;
  color: var(--adm-muted);
  margin: 8px 0 4px;
  padding-left: 4px;
}

.adm-preview-frame {
  width: 100%;
  height: 100%;
  min-height: 700px;
  border: none;
  background: #fff;
}

.adm-toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 12px;
}

.adm-color-row {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.adm-color-swatch {
  width: 28px;
  height: 28px;
  border-radius: 6px;
  border: 2px solid transparent;
  cursor: pointer;
}

.adm-color-swatch.active { border-color: #fff; }

.adm-content-editor {
  min-height: 200px;
  font-family: Consolas, monospace;
  font-size: 13px;
}

.adm-link-box {
  margin-top: 12px;
  padding: 12px;
  background: #0d1117;
  border-radius: 8px;
  word-break: break-all;
  font-size: 12px;
}

.adm-qr {
  margin-top: 10px;
  padding: 10px;
  background: #fff;
  display: inline-block;
  border-radius: 8px;
}

@media (max-width: 1200px) {
  .adm-editor-layout {
    grid-template-columns: 1fr;
  }
}