* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans SC", sans-serif;
  background: #f5f7fa;
  color: #1f2937;
}
.login-body {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  background: linear-gradient(135deg, #1f2937, #4c1d95);
}
.login-box {
  background: #fff;
  padding: 2rem;
  border-radius: 1rem;
  box-shadow: 0 10px 30px rgba(0,0,0,0.2);
  width: 360px;
}
.login-box h1 { margin: 0 0 1.5rem; text-align: center; color: #111827; }
.login-box label { display: block; margin: 0.75rem 0 0.25rem; font-size: 0.9rem; color: #4b5563; }
.login-box input {
  width: 100%;
  padding: 0.75rem;
  border: 1px solid #d1d5db;
  border-radius: 0.5rem;
  font-size: 1rem;
}
.login-box button {
  width: 100%;
  margin-top: 1.25rem;
  padding: 0.75rem;
  border: none;
  border-radius: 0.5rem;
  background: #7c3aed;
  color: #fff;
  font-size: 1rem;
  cursor: pointer;
}
.login-box .error { color: #ef4444; font-size: 0.9rem; margin-top: 0.75rem; }

.admin-layout { display: flex; min-height: 100vh; }
.sidebar {
  width: 220px;
  background: #111827;
  color: #fff;
  padding: 1.5rem 1rem;
  flex-shrink: 0;
}
.sidebar h2 { margin: 0 0 1.5rem; font-size: 1.25rem; }
.sidebar nav a {
  display: block;
  padding: 0.75rem 1rem;
  color: #d1d5db;
  text-decoration: none;
  border-radius: 0.5rem;
  margin-bottom: 0.25rem;
}
.sidebar nav a:hover, .sidebar nav a.active { background: #374151; color: #fff; }
.main-content { flex: 1; padding: 2rem; overflow-x: auto; }
.main-content h1 { margin-top: 0; font-size: 1.75rem; color: #111827; }

.stats-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 1rem; margin-bottom: 2rem; }
.stat-card { background: #fff; border-radius: 0.75rem; padding: 1.25rem; box-shadow: 0 1px 3px rgba(0,0,0,0.08); }
.stat-card h3 { margin: 0 0 0.5rem; font-size: 0.95rem; color: #6b7280; }
.stat-card p { margin: 0; font-size: 1.75rem; font-weight: 700; color: #7c3aed; }

.form-card {
  background: #fff;
  border-radius: 0.75rem;
  padding: 1.5rem;
  margin-bottom: 1.5rem;
  box-shadow: 0 1px 3px rgba(0,0,0,0.08);
  max-width: 600px;
}
.form-card label { display: block; margin: 0.75rem 0 0.25rem; font-size: 0.9rem; color: #374151; }
.form-card input, .form-card select, .form-card textarea {
  width: 100%;
  padding: 0.6rem;
  border: 1px solid #d1d5db;
  border-radius: 0.5rem;
  font-size: 0.95rem;
}
.form-card button {
  margin-top: 1rem;
  padding: 0.65rem 1.25rem;
  border: none;
  border-radius: 0.5rem;
  background: #7c3aed;
  color: #fff;
  cursor: pointer;
}

.alert {
  background: #d1fae5;
  color: #065f46;
  padding: 0.75rem 1rem;
  border-radius: 0.5rem;
  margin-bottom: 1rem;
}

.alert.alert-error {
  background: #fee2e2;
  color: #991b1b;
}

/* 勾选复制工具栏 */
.copy-toolbar {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 14px;
  background: #f8fafc;
  border: 1px solid #e2e8f0;
  border-radius: 0.6rem;
  margin-bottom: 10px;
  flex-wrap: wrap;
}
.copy-btn {
  padding: 0.4rem 0.9rem;
  border: none;
  border-radius: 0.45rem;
  background: #7c3aed;
  color: #fff;
  cursor: pointer;
  font-size: 0.9rem;
  white-space: nowrap;
}
.copy-btn:hover { background: #6d28d9; }
.copy-btn-secondary {
  background: #64748b;
}
.copy-btn-secondary:hover { background: #475569; }
.copy-feedback {
  padding: 8px 14px;
  border-radius: 0.5rem;
  margin-bottom: 8px;
  font-size: 0.9rem;
}
.card-code-cell {
  font-family: 'Courier New', Courier, monospace;
  font-weight: 600;
  letter-spacing: 0.04em;
}

table {
  width: 100%;
  border-collapse: collapse;
  background: #fff;
  border-radius: 0.75rem;
  overflow: hidden;
  box-shadow: 0 1px 3px rgba(0,0,0,0.08);
}
th, td {
  padding: 0.75rem 1rem;
  text-align: left;
  border-bottom: 1px solid #e5e7eb;
  font-size: 0.95rem;
}
th { background: #f9fafb; color: #4b5563; font-weight: 600; }
td pre { margin: 0; font-size: 0.8rem; background: #f3f4f6; padding: 0.5rem; border-radius: 0.25rem; max-width: 300px; overflow: auto; }

td button {
  padding: 0.35rem 0.75rem;
  border: none;
  border-radius: 0.35rem;
  background: #ef4444;
  color: #fff;
  cursor: pointer;
  font-size: 0.85rem;
}