/* ==============================
   后台管理专用样式
   与前台 styles.css 配合使用
   ============================== */

.section-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin: 0 0 20px;
}

.section-header h2 {
  margin: 0;
  font-size: 24px;
}

.section-header p {
  margin: 4px 0 0;
  color: var(--muted);
  font-size: 14px;
}

.admin-table-wrap {
  background: var(--panel);
  border: 1px solid rgba(228, 231, 236, 0.86);
  border-radius: var(--radius);
  box-shadow: 0 12px 30px rgba(15, 23, 42, 0.055);
  overflow: hidden;
}

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

.admin-table th,
.admin-table td {
  padding: 14px 18px;
  text-align: left;
  border-bottom: 1px solid #eef2f7;
}

.admin-table th {
  background: #f8fafc;
  font-weight: 700;
  font-size: 13px;
  color: #667085;
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

.admin-table tr:hover td {
  background: #fafbfc;
}

.admin-table .actions {
  display: flex;
  gap: 8px;
}

.btn-sm {
  padding: 7px 14px;
  border-radius: 10px;
  font-size: 13px;
  font-weight: 600;
  border: 1px solid var(--border);
  background: #fff;
  color: #344054;
  transition: 0.2s;
}

.btn-sm:hover {
  border-color: #bfdbfe;
  background: #eff6ff;
  color: var(--primary);
}

.btn-sm.danger:hover {
  border-color: #fecaca;
  background: #fef2f2;
  color: #dc2626;
}

.empty-hint {
  padding: 48px;
  text-align: center;
  color: var(--muted);
  font-size: 14px;
}

.config-form {
  max-width: 560px;
  padding: 24px;
}

.form-group {
  margin-bottom: 18px;
}

.form-group label {
  display: block;
  margin-bottom: 6px;
  font-weight: 600;
  font-size: 14px;
  color: #344054;
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 10px 14px;
  border: 1px solid var(--border);
  border-radius: 12px;
  font-size: 14px;
  color: var(--text);
  background: #fff;
  transition: 0.2s;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: #93c5fd;
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.form-group textarea {
  min-height: 80px;
  resize: vertical;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.section-builder {
  margin-top: 24px;
  padding-top: 24px;
  border-top: 1px solid var(--border);
}

.section-builder-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 14px;
}

.section-builder-header strong {
  font-size: 16px;
}

.section-item {
  padding: 16px;
  margin-bottom: 14px;
  background: #f8fafc;
  border: 1px solid #eef2f7;
  border-radius: 14px;
}

.section-item-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 12px;
}

.section-item-header strong {
  font-size: 14px;
}

.section-fields {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.tab-panel {
  animation: fadeIn 0.2s ease;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(6px); }
  to { opacity: 1; transform: translateY(0); }
}

@media (max-width: 620px) {
  .form-row,
  .section-fields {
    grid-template-columns: 1fr;
  }

  .section-header {
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
  }
}