/* ============ 子视图（设置 / API配置 / 角色档案） ============ */
.page-header {
  display: flex; flex-direction: column; align-items: flex-start; gap: 10px;
  padding: 12px 16px 16px; background: #ededed;
  border-bottom: 1px solid #d5d5d5; flex-shrink: 0;
}
.page-header .back-btn { margin-left: -6px; }
.page-header .title {
  font-size: 20px; font-weight: 700; color: #333; line-height: 1.2;
}
.page-title-icon { margin-right: 6px; }
.page-header .header-action { align-self: flex-start; }
.sub-body { flex: 1; overflow-y: auto; padding: 16px; display: flex; flex-direction: column; gap: 12px; }