/**
 * [INPUT]: 依赖 index.html 的平台工作区语义结构、styles.css 的业务组件和 tenant-workspace.css 的租户视觉令牌
 * [OUTPUT]: 提供与租户后台同构的超管顶部导航、任务面板、租户健康表格、全局配置、审计与用量视觉系统
 * [POS]: config-center 超管后台的表现收敛层；只重塑平台治理信息层级，不改变租户工作区和服务端数据流
 * [PROTOCOL]: 变更时更新此头部，然后检查 CLAUDE.md
 */

#platform-workspace {
  --platform-brand: #3267d6;
  --platform-brand-strong: #2857bc;
  --platform-brand-soft: #eef4ff;
  --platform-canvas: #f5f7fa;
  --platform-paper: #ffffff;
  --platform-inset: #f7f9fc;
  --platform-control: #f8fafc;
  --platform-control-hover: #f2f5f9;
  --platform-ink: #182230;
  --platform-text-secondary: #344054;
  --platform-text-tertiary: #667085;
  --platform-text-muted: #98a2b3;
  --platform-line-soft: rgba(24, 34, 48, 0.055);
  --platform-line: rgba(24, 34, 48, 0.095);
  --platform-line-strong: rgba(24, 34, 48, 0.15);
  --platform-success: #16845b;
  --platform-warning: #b36b00;
  --platform-danger: #c4323f;
  --platform-radius-control: 8px;
  --platform-radius-panel: 12px;
  --accent: var(--platform-brand);
  --accent-deep: var(--platform-brand-strong);
  --olive: var(--platform-success);
  --ink: var(--platform-ink);
  --muted: var(--platform-text-tertiary);
  --line: var(--platform-line);
  --line-strong: var(--platform-line-strong);
  min-height: 100%;
  background: var(--platform-canvas);
  color: var(--platform-ink);
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", sans-serif;
  font-size: 14px;
  line-height: 1.55;
  animation: none;
}

body:has(#platform-workspace.active) {
  background: var(--platform-canvas);
  color: var(--platform-ink);
}

#platform-workspace :is(button, summary, [role="tab"]):focus-visible {
  outline: 2px solid rgba(50, 103, 214, 0.55);
  outline-offset: 2px;
}

#platform-workspace .platform-topbar {
  position: fixed;
  inset: 0 0 auto;
  z-index: 150;
  height: 72px;
  padding: 0;
  border-bottom: 1px solid var(--platform-line);
  background: rgba(255, 255, 255, 0.96);
  box-shadow: none;
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
}

#platform-workspace .workspace-header {
  width: 100%;
  height: 72px;
  min-height: 72px;
  margin: 0;
  padding: 0 28px;
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: center;
  gap: 20px;
  border: 0;
  background: transparent;
  box-shadow: none;
}

#platform-workspace .brand-group {
  min-width: max-content;
  gap: 10px;
}

#platform-workspace .brand-group h3 {
  margin: 0;
  color: var(--platform-ink);
  font-size: 16px;
  font-weight: 720;
  letter-spacing: -0.02em;
}

#platform-workspace .brand-mark.mini {
  width: 32px;
  height: 32px;
  border-radius: 8px;
}

#platform-workspace .platform-header-main {
  min-width: 0;
  height: 40px;
  justify-content: flex-start;
}

#platform-workspace .platform-primary-nav {
  width: fit-content;
  min-height: 40px;
  padding: 3px;
  gap: 2px;
  border: 1px solid var(--platform-line-soft);
  border-radius: 10px;
  background: var(--platform-inset);
}

#platform-workspace .platform-primary-nav .tab {
  min-height: 32px;
  padding: 0 13px;
  border-radius: 7px;
  color: var(--platform-text-tertiary);
  font-size: 13px;
  font-weight: 620;
  box-shadow: none;
}

#platform-workspace .platform-primary-nav .tab:hover {
  background: var(--platform-paper);
  color: var(--platform-ink);
}

#platform-workspace .platform-primary-nav .tab.active {
  background: var(--platform-paper);
  color: var(--platform-brand);
  box-shadow: 0 1px 3px rgba(16, 24, 40, 0.08);
}

#platform-workspace .header-actions,
#platform-workspace .user-meta {
  display: flex;
  align-items: center;
  gap: 8px;
}

#platform-workspace .user-meta > span {
  max-width: 160px;
  overflow: hidden;
  color: var(--platform-text-secondary);
  font-size: 12px;
  font-weight: 650;
  text-overflow: ellipsis;
  white-space: nowrap;
}

#platform-workspace .workspace-content {
  width: min(100%, 1480px);
  max-width: none;
  margin: 0 auto;
  padding: 24px 28px 56px;
}

#platform-workspace .panel {
  margin-bottom: 20px;
  padding: 24px;
  border: 1px solid var(--platform-line);
  border-radius: var(--platform-radius-panel);
  background: var(--platform-paper);
  box-shadow: 0 1px 2px rgba(16, 24, 40, 0.025);
}

#platform-workspace .section-head {
  align-items: flex-end;
  gap: 20px;
  margin-bottom: 20px;
}

#platform-workspace .section-head h3,
#platform-workspace .section-head h4 {
  margin: 3px 0 0;
  color: var(--platform-ink);
  font-family: inherit;
  font-size: 20px;
  font-weight: 720;
  line-height: 1.25;
  letter-spacing: -0.025em;
}

#platform-workspace .eyebrow {
  color: var(--platform-text-tertiary);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.11em;
}

#platform-workspace .meta-line {
  color: var(--platform-text-tertiary);
  font-size: 12px;
  line-height: 1.55;
}

#platform-workspace .primary-btn,
#platform-workspace .ghost-btn,
#platform-workspace .danger-btn {
  min-height: 38px;
  padding: 0 15px;
  border-radius: var(--platform-radius-control);
  font-size: 13px;
  font-weight: 650;
  box-shadow: none;
  transition: background 0.16s ease, border-color 0.16s ease, color 0.16s ease;
}

#platform-workspace .primary-btn {
  border: 1px solid var(--platform-brand);
  background: var(--platform-brand);
  color: #ffffff;
}

#platform-workspace .primary-btn:hover:not(:disabled) {
  border-color: var(--platform-brand-strong);
  background: var(--platform-brand-strong);
}

#platform-workspace .ghost-btn {
  border: 1px solid var(--platform-line);
  background: var(--platform-control);
  color: var(--platform-text-secondary);
}

#platform-workspace .ghost-btn:hover:not(:disabled) {
  border-color: var(--platform-line-strong);
  background: var(--platform-control-hover);
  color: var(--platform-ink);
}

#platform-workspace .ghost-btn.sm {
  min-height: 34px;
  padding: 0 11px;
  font-size: 12px;
}

#platform-workspace input,
#platform-workspace select,
#platform-workspace textarea {
  border: 1px solid var(--platform-line-strong);
  border-radius: var(--platform-radius-control);
  background: var(--platform-control);
  color: var(--platform-ink);
  font-family: inherit;
  font-size: 14px;
  box-shadow: none;
}

#platform-workspace input,
#platform-workspace select {
  min-height: 40px;
  padding: 9px 12px;
}

#platform-workspace textarea {
  padding: 12px 14px;
}

#platform-workspace :is(input, select, textarea):focus {
  outline: 0;
  border-color: rgba(50, 103, 214, 0.58);
  box-shadow: 0 0 0 3px rgba(50, 103, 214, 0.1);
}

#platform-workspace .field {
  margin-bottom: 16px;
}

#platform-workspace .field > span {
  margin-bottom: 6px;
  color: var(--platform-text-secondary);
  font-size: 12px;
  font-weight: 650;
}

#platform-workspace .empty-card {
  min-height: 108px;
  padding: 28px 24px;
  display: grid;
  place-items: center;
  border: 1px dashed var(--platform-line-strong);
  border-radius: 10px;
  background: var(--platform-inset);
  color: var(--platform-text-tertiary);
  font-size: 13px;
  line-height: 1.65;
}

/* --- 租户健康轨道：名称、账号生命周期、风险摘要与动作保持同一阅读线 --- */
#platform-workspace .tenant-list-shell {
  border: 1px solid var(--platform-line);
  border-radius: 10px;
  background: var(--platform-paper);
}

#platform-workspace .tenant-list-table {
  min-width: 1120px;
}

#platform-workspace .admin-table th,
#platform-workspace .admin-table td {
  padding: 14px 16px;
  border-bottom: 1px solid var(--platform-line-soft);
}

#platform-workspace .admin-table th {
  background: var(--platform-inset);
  color: var(--platform-text-tertiary);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.07em;
}

#platform-workspace .admin-table tbody tr {
  transition: background 0.14s ease;
}

#platform-workspace .admin-table tbody tr:hover {
  background: rgba(50, 103, 214, 0.025);
}

#platform-workspace .tenant-list-row.has-expiring {
  background: rgba(179, 107, 0, 0.035);
}

#platform-workspace .tenant-list-row.has-expired {
  background: rgba(196, 50, 63, 0.035);
}

#platform-workspace .tenant-list-row.has-expiring td:first-child {
  box-shadow: inset 3px 0 0 rgba(179, 107, 0, 0.55);
}

#platform-workspace .tenant-list-row.has-expired td:first-child {
  box-shadow: inset 3px 0 0 rgba(196, 50, 63, 0.62);
}

#platform-workspace .tenant-list-main {
  gap: 4px;
}

#platform-workspace .tenant-list-main strong {
  color: var(--platform-ink);
  font-family: inherit;
  font-size: 15px;
  font-weight: 700;
  letter-spacing: -0.015em;
}

#platform-workspace .tenant-list-main span,
#platform-workspace .tenant-list-main small {
  color: var(--platform-text-tertiary);
  font-size: 12px;
}

#platform-workspace .tenant-account-stack,
#platform-workspace .tenant-summary-stack {
  gap: 6px;
}

#platform-workspace .tenant-account-pill {
  min-width: 196px;
  max-width: 280px;
  padding: 10px 12px;
  gap: 7px;
  border: 1px solid var(--platform-line);
  border-radius: 8px;
  background: var(--platform-inset);
}

#platform-workspace .tenant-account-pill.expiring {
  border-color: rgba(179, 107, 0, 0.2);
  background: #fffaf0;
}

#platform-workspace .tenant-account-pill.expired {
  border-color: rgba(196, 50, 63, 0.18);
  background: #fff5f5;
}

#platform-workspace .tenant-account-pill.disabled {
  border-color: var(--platform-line);
  background: #f4f5f7;
}

#platform-workspace .tenant-account-pill-main strong {
  color: var(--platform-ink);
  font-size: 13px;
}

#platform-workspace .tenant-account-pill-main span {
  color: var(--platform-text-tertiary);
  font-size: 11px;
}

#platform-workspace :is(.tenant-account-role, .tenant-account-expiry, .tenant-summary-badge) {
  min-height: 22px;
  padding: 2px 8px;
  border-radius: 6px;
  font-size: 10px;
  font-weight: 650;
}

#platform-workspace .tenant-account-role {
  background: #eef1f5;
  color: var(--platform-text-secondary);
}

#platform-workspace .tenant-account-role.tenant_admin {
  background: var(--platform-brand-soft);
  color: var(--platform-brand);
}

#platform-workspace .tenant-account-role.tenant_member,
#platform-workspace .tenant-summary-badge.ok {
  background: #eaf7f2;
  color: var(--platform-success);
}

#platform-workspace .tenant-summary-badge.warn {
  background: #fff4dd;
  color: var(--platform-warning);
}

#platform-workspace .tenant-summary-badge.danger {
  background: #fff0f1;
  color: var(--platform-danger);
}

#platform-workspace .tenant-summary-badge.muted,
#platform-workspace .tenant-account-expiry {
  background: #eef1f5;
  color: var(--platform-text-tertiary);
}

/* --- 全局配置：与租户设置页共享安静的边框层级和单一蓝色行动语义 --- */
#platform-workspace .ai-settings-layout {
  grid-template-columns: minmax(300px, 360px) minmax(0, 1fr);
  gap: 16px;
}

#platform-workspace .ai-settings-rail,
#platform-workspace .ai-service-workspace {
  padding: 16px;
  border: 1px solid var(--platform-line);
  border-radius: 10px;
  background: var(--platform-inset);
  box-shadow: none;
}

#platform-workspace .ai-slider-card,
#platform-workspace .settings-toggle-card {
  border: 1px solid var(--platform-line);
  border-radius: 9px;
  background: var(--platform-paper);
  box-shadow: none;
}

#platform-workspace .ai-slider-card {
  padding: 12px;
}

#platform-workspace .ai-control-title,
#platform-workspace .toggle-chip-label {
  color: var(--platform-text-secondary);
}

#platform-workspace .ai-control-head strong {
  border-radius: 6px;
  background: var(--platform-brand-soft);
  color: var(--platform-brand);
  font-variant-numeric: tabular-nums;
}

#platform-workspace .ai-slider-card input[type="range"] {
  accent-color: var(--platform-brand);
}

#platform-workspace .ai-slider-card input[type="range"]::-webkit-slider-runnable-track {
  height: 6px;
  background: #dbe3ef;
}

#platform-workspace .ai-slider-card input[type="range"]::-webkit-slider-thumb {
  width: 18px;
  height: 18px;
  margin-top: -6px;
  border: 3px solid var(--platform-paper);
  background: var(--platform-brand);
  box-shadow: 0 1px 4px rgba(16, 24, 40, 0.16);
}

#platform-workspace .ai-slider-card input[type="range"]::-moz-range-track {
  height: 6px;
  background: #dbe3ef;
}

#platform-workspace .ai-slider-card input[type="range"]::-moz-range-thumb {
  background: var(--platform-brand);
  box-shadow: 0 1px 4px rgba(16, 24, 40, 0.16);
}

#platform-workspace .toggle-control input:checked + .toggle-slider {
  background: var(--platform-brand);
}

#platform-workspace .ai-service-switch,
#platform-workspace .tabbar,
#platform-workspace .account-usage-trend-switch {
  padding: 3px;
  border: 1px solid var(--platform-line-soft);
  border-radius: 9px;
  background: #eef1f5;
}

#platform-workspace :is(.ai-service-switch-btn, .account-usage-trend-switch-btn) {
  border-radius: 7px;
  color: var(--platform-text-tertiary);
}

#platform-workspace :is(.ai-service-switch-btn, .account-usage-trend-switch-btn).active {
  background: var(--platform-paper);
  color: var(--platform-brand);
  box-shadow: 0 1px 3px rgba(16, 24, 40, 0.08);
}

#platform-workspace .tabbar .tab {
  min-height: 34px;
  padding: 0 14px;
  border-radius: 7px;
  color: var(--platform-text-tertiary);
  font-size: 13px;
  box-shadow: none;
}

#platform-workspace .tabbar .tab.active {
  background: var(--platform-paper);
  color: var(--platform-brand);
  box-shadow: 0 1px 3px rgba(16, 24, 40, 0.08);
}

#platform-workspace .panel-split {
  padding-top: 20px;
  border-top: 1px solid var(--platform-line-soft);
}

/* --- 审计与用量：数字承担层级，语义色只表达状态 --- */
#platform-workspace .status-box.ghost,
#platform-workspace .security-banner {
  border: 1px solid var(--platform-line);
  border-radius: 9px;
  background: var(--platform-inset);
  color: var(--platform-text-secondary);
  box-shadow: none;
}

#platform-workspace .stats-grid,
#platform-workspace .top-grid {
  gap: 10px;
}

#platform-workspace .stat-card,
#platform-workspace .top-card,
#platform-workspace .audit-card,
#platform-workspace .account-usage-card,
#platform-workspace .account-usage-tenant-breakdown {
  border: 1px solid var(--platform-line);
  border-radius: 10px;
  background: var(--platform-paper);
  box-shadow: none;
}

#platform-workspace .stat-card {
  padding: 14px;
}

#platform-workspace .stat-label {
  color: var(--platform-text-tertiary);
}

#platform-workspace .stat-value {
  color: var(--platform-ink);
  font-size: 24px;
  font-variant-numeric: tabular-nums;
  letter-spacing: -0.03em;
}

#platform-workspace .audit-card.success {
  box-shadow: inset 3px 0 0 rgba(22, 132, 91, 0.55);
}

#platform-workspace .audit-card.failed {
  border-color: rgba(196, 50, 63, 0.16);
  box-shadow: inset 3px 0 0 rgba(196, 50, 63, 0.62);
}

#platform-workspace .audit-badge,
#platform-workspace .account-usage-tenant-pill,
#platform-workspace .account-usage-tenant-rank {
  border-radius: 6px;
}

#platform-workspace .audit-badge.success,
#platform-workspace .account-usage-tenant-rank {
  background: #eaf7f2;
  color: var(--platform-success);
}

#platform-workspace .audit-badge.failed {
  background: #fff0f1;
  color: var(--platform-danger);
}

#platform-workspace .account-usage-tenant-pill {
  background: var(--platform-brand-soft);
  color: var(--platform-brand);
}

#platform-workspace .top-row {
  border-color: var(--platform-line-soft);
}

#platform-workspace .top-count strong,
#platform-workspace .account-usage-tenant-row .top-count strong {
  color: var(--platform-ink);
  font-variant-numeric: tabular-nums;
}

@media (max-width: 1180px) {
  #platform-workspace .workspace-header {
    padding-inline: 20px;
    gap: 14px;
  }

  #platform-workspace .platform-primary-nav .tab {
    padding-inline: 10px;
    font-size: 12px;
  }

  #platform-workspace .user-meta > span {
    display: none;
  }
}

@media (max-width: 900px) {
  #platform-workspace {
    padding-top: 116px;
  }

  #platform-workspace .platform-topbar {
    height: 116px;
  }

  #platform-workspace .workspace-header {
    height: 116px;
    min-height: 116px;
    padding: 10px 14px;
    grid-template-columns: minmax(0, 1fr) auto;
    grid-template-areas:
      "brand actions"
      "main main";
    gap: 8px 12px;
  }

  #platform-workspace .brand-group { grid-area: brand; }
  #platform-workspace .platform-header-main { grid-area: main; width: 100%; }
  #platform-workspace .header-actions { grid-area: actions; }

  #platform-workspace .platform-primary-nav {
    width: 100%;
    overflow-x: auto;
  }

  #platform-workspace .platform-primary-nav .tab {
    flex: 0 0 auto;
    padding-inline: 12px;
  }

  #platform-workspace .workspace-content {
    padding: 14px 14px 32px;
  }

  #platform-workspace .panel {
    padding: 18px 16px;
  }

  #platform-workspace .ai-settings-layout {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  #platform-workspace .user-meta > .ghost-btn:first-of-type {
    display: none;
  }

  #platform-workspace .section-head {
    align-items: flex-start;
  }

  #platform-workspace .section-head > :last-child:not(:first-child) {
    width: 100%;
  }

  #platform-workspace .section-head .primary-btn,
  #platform-workspace .section-head .ghost-btn {
    width: 100%;
  }

  #platform-workspace .field-grid-2,
  #platform-workspace .field-grid-3,
  #platform-workspace .audit-toolbar,
  #platform-workspace .stats-grid,
  #platform-workspace .top-grid,
  #platform-workspace .audit-grid {
    grid-template-columns: 1fr;
  }
}