/* Blue and white management theme — aligned with docs/ui-design-spec.md.
   本文件是 styles.css 与各功能样式之后的覆盖层，只调整视觉令牌与密度，不改动任何业务逻辑。 */
:root {
  --ink: #1a2333;
  --muted: #6b7a90;
  --line: #e8edf3;
  --blue: #2b6ce5;
  --blue-hover: #174ec2;
  --blue-soft: #e8f0fe;
  --bg: #eff3fa;
  --panel: #fff;
  --mint: #22a06b;
  --danger: #dc2626;
  --shadow: 0 1px 3px rgb(0 0 0 / 4%), 0 4px 12px rgb(0 0 0 / 4%);
  color-scheme: light;
}

* { box-sizing: border-box; }
body { background: var(--bg); color: var(--ink); font-size: 14px; }
/* 预览徽章下移到顶栏之下，避免压住右上角的用户信息 */
body.demo-preview::after {
  position: fixed; z-index: 1000; top: 72px; right: 14px; padding: 7px 11px;
  border: 1px solid var(--line); border-radius: 20px; background: #fff; color: var(--muted);
  content: '本地预览 · 示例内容'; font-size: 12px; pointer-events: none;
}

.admin-topbar { height: 62px; border-bottom: 1px solid var(--line); background: #fff; box-shadow: none; }
.admin-brand { width: 232px; color: var(--ink); }
.brand-icon, .login-mark, .modal-mark { background: var(--blue); box-shadow: none; }
.admin-layout { background: var(--bg); }
.sidebar { width: 232px; border-color: var(--line); background: #fff; box-shadow: none; }
.workspace-label, .nav-caption { color: #858d9b; font-size: 12px; }
.scope-card { padding: 12px; border: 1px solid var(--line); border-radius: 8px; background: #fff; }
.scope-avatar { border-radius: 6px; background: var(--blue-soft); color: var(--blue); }
.scope-card b { color: var(--ink); font-size: 13px; }
.scope-card small { color: var(--muted); font-size: 12px; }
.nav-link { min-height: 40px; padding: 12px 14px; border-radius: 8px; color: #555f70; font-size: 14px; transition: background-color 140ms ease, color 140ms ease; }
.nav-link:hover { background: #f7faff; color: var(--ink); }
.nav-link.active { background: var(--blue-soft); color: var(--blue); box-shadow: none; }
.nav-link.active::before { display: none; }
.nav-icon { color: inherit; }
.nav-count { border-radius: 10px; background: #fff0ef; color: var(--danger); }
.sidebar-bottom { border-color: var(--line); }
.help-card { border: 1px solid var(--line); border-radius: 8px; background: #fafbfc; }
.help-card > span { color: var(--blue); }
.sidebar-foot { color: var(--muted); font-size: 12px; }
.online-dot { background: var(--mint); }

.admin-main { max-width: none; margin-left: 232px; padding: 24px 28px 56px; }
#page-content { width: min(100%, 1440px); max-width: 1440px; margin: 0 auto; }
.breadcrumb { margin: 0 auto 12px; color: var(--muted); font-size: 12px; }
.breadcrumb b { color: #515a68; font-weight: 500; }
.workspace-tabs { display: flex; gap: 4px; min-height: 40px; margin: 0 auto 18px; overflow-x: auto; border-bottom: 1px solid var(--line); scrollbar-width: thin; }
.workspace-tab { display: inline-flex; align-items: center; flex: 0 0 auto; min-width: 110px; border-bottom: 2px solid transparent; }
.workspace-tab.active { border-bottom-color: var(--blue); }
.workspace-tab [role="tab"] { max-width: 200px; overflow: hidden; padding: 9px 8px 8px 12px; border: 0; background: transparent; color: #626b78; font: inherit; text-overflow: ellipsis; white-space: nowrap; cursor: pointer; }
.workspace-tab.active [role="tab"] { color: var(--blue); font-weight: 600; }
.tab-close { width: 25px; height: 25px; margin-right: 5px; border: 0; border-radius: 5px; background: transparent; color: #98a0ad; font-size: 18px; cursor: pointer; }
.tab-close:hover { background: #f1f3f6; color: var(--ink); }
.workspace-tab button:focus-visible { outline: 2px solid var(--blue); outline-offset: -2px; }

.page-head { align-items: center; margin-bottom: 18px; }
.page-head h1 { color: var(--ink); font-size: 22px; font-weight: 600; letter-spacing: 0; }
.page-head p, .user-chip small { color: var(--muted); font-size: 13px; }
.head-actions { gap: 8px; }
.metric-grid, .dashboard-grid, .form-grid { gap: 16px; }
.metric-card, .panel, .form-card, .quick-action { border: 1px solid var(--line); border-radius: 12px; background: var(--panel); box-shadow: var(--shadow); }
.metric-card { padding: 20px; }
.metric-top, .metric-value span, .metric-change { color: var(--muted); font-size: 12px; }
.metric-icon { border-radius: 7px; background: var(--blue-soft); color: var(--blue); }
.m-blue, .m-violet, .m-mint, .m-orange { background: var(--blue-soft); color: var(--blue); }
.metric-value b { color: var(--ink); font-size: 27px; font-weight: 650; }
.metric-change strong { color: var(--mint); }
.dashboard-grid > :first-child { grid-column: span 7; }
.dashboard-grid > :nth-child(2) { grid-column: span 5; }
.panel-head, .form-card { padding: 20px; }
.panel-head { border-bottom-color: var(--line); }
.panel-head h2, .form-card h2 { color: var(--ink); font-size: 15px; font-weight: 600; }
.panel-head span, .panel-head button { color: var(--muted); font-size: 12px; }
.panel-head button { color: var(--blue); }
.chart-panel { padding-bottom: 12px; }
.chart-bar { background: var(--blue); }
.chart-bar:after { display: none; }
.legend-dot { background: var(--blue); }
.legend-dot.mint { background: var(--mint); }
.activity-list { padding: 3px 18px; }
.activity-item { border-bottom-color: var(--line); }
.activity-icon { border-radius: 7px; background: var(--blue-soft); color: var(--blue); }
.activity-copy b { color: var(--ink); font-size: 13px; font-weight: 500; }
.activity-copy small, .activity-time { color: var(--muted); font-size: 12px; }
.quick-grid { gap: 16px; margin-top: 16px; }
.quick-action { padding: 15px; color: var(--ink); transition: border-color 140ms ease, background-color 140ms ease, transform 140ms ease; }
.quick-action:hover { border-color: #c9d9f5; background: #fff; box-shadow: var(--shadow); transform: translateY(-1px); }
.quick-icon { border-radius: 7px; background: var(--blue-soft); color: var(--blue); }
.quick-action b { font-size: 13px; font-weight: 600; }
.quick-action small { color: var(--muted); font-size: 12px; }
.overview-section-head { display: flex; align-items: flex-end; justify-content: space-between; margin: 18px 0 10px; }
.overview-section-head h2 { margin: 0; color: var(--ink); font-size: 15px; font-weight: 600; }
.overview-section-head p { margin: 4px 0 0; color: var(--muted); font-size: 12px; }
.demo-data-note { display: inline-flex; align-items: center; min-height: 30px; padding: 0 9px; border: 1px solid var(--line); border-radius: 5px; background: #fff; color: var(--muted); font-size: 12px; }
.overview-note { margin-top: 14px; padding: 14px 17px; }
.overview-note b { color: #596474; font-size: 12px; font-weight: 600; }
.overview-note p { margin: 4px 0 0; color: var(--muted); font-size: 12px; line-height: 1.65; }
.shortcut-arrow { margin-left: auto; color: #a2a9b4; }
.report-filters, .import-layout > .form-card, .navigation-config-layout > .form-card { border: 1px solid var(--line); border-radius: 12px; background: #fff; box-shadow: var(--shadow); }
.report-filters { margin-bottom: 16px; }
.report-metrics { margin-bottom: 16px; }
.report-tree, .report-incomplete, .exam-results { margin-top: 16px; overflow: hidden; }
.report-brand { border-top: 1px solid var(--line); }
.report-brand > summary, .report-store > summary { padding: 13px 17px; color: #394353; font-size: 13px; }
.report-brand > summary small, .report-store > summary small { color: var(--muted); font-size: 12px; }
.report-store { margin: 0 14px 10px; border: 1px solid var(--line); border-radius: 6px; background: #fff; }
.report-table-wrap { overflow-x: auto; }
.report-table-wrap th { height: 44px; background: #fafbfc; color: var(--muted); font-size: 12px; font-weight: 600; }
.report-table-wrap td { height: 44px; border-top-color: var(--line); color: #495362; font-size: 13px; }
.report-table-wrap td small { color: var(--muted); }
.report-row-detail { color: var(--muted); font-size: 12px; }
.import-layout, .navigation-config-layout { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; align-items: start; }
.import-layout > .form-card, .navigation-config-layout > .form-card { min-width: 0; }
.import-rules { padding-left: 20px; color: #596474; font-size: 13px; line-height: 1.9; }
.import-actions { display: flex; flex-wrap: wrap; gap: 8px; margin: 14px 0 8px; }
.import-result { margin-top: 14px; overflow: hidden; }
.import-row-results { max-height: 390px; overflow: auto; padding: 8px 18px; }
.import-row { display: flex; justify-content: space-between; gap: 12px; padding: 10px 0; border-bottom: 1px solid var(--line); font-size: 13px; }
.import-row.is-ok span { color: var(--mint); }
.import-row.is-error span { color: var(--danger); }
.navigation-config-layout { grid-template-columns: minmax(0, 1.25fr) minmax(260px, .75fr); }
.nav-config-item { grid-template-columns: 34px minmax(130px, 1fr) minmax(90px, 125px) auto; border-bottom-color: var(--line); }
.nav-config-icon { color: var(--blue); }
.nav-config-copy b { color: var(--ink); font-size: 13px; }
.nav-config-copy small { color: var(--muted); font-size: 12px; }
.nav-show-control { display: flex; align-items: center; gap: 5px; color: var(--muted); font-size: 12px; }
.preview-phone { border-color: #303846; box-shadow: 0 8px 20px rgb(28 43 66 / 10%); }
.phone-mini-hero { background: #edf4ff; }
.phone-mini-cards i { background: #f3f6fa; }
.phone-mini-nav { color: var(--blue); }
.exam-bank-list { display: flex; flex-wrap: wrap; gap: 8px; }
.exam-bank-chip { border: 1px solid var(--line); border-radius: 6px; background: #fff; }
.exam-staff-results { max-height: 250px; overflow: auto; border: 1px solid var(--line); border-radius: 6px; }
.exam-staff-option { border-bottom-color: var(--line); }
.task-store-detail { border-color: var(--line); border-radius: 7px; box-shadow: var(--shadow); }
.task-review-item { border-top-color: var(--line); }
.task-evidence-strip img, .evidence-thumb { border-color: var(--line); border-radius: 6px; }
.review-item { border-bottom-color: var(--line); }

.btn { min-height: 38px; padding: 10px 18px; border-radius: 8px; font-size: 13px; font-weight: 500; transition: background-color 140ms ease, border-color 140ms ease, color 140ms ease, box-shadow 140ms ease, transform 140ms ease; }
.btn-primary { border-color: var(--blue); background: var(--blue); color: #fff; box-shadow: none; }
.btn-primary:hover:not(:disabled) { border-color: var(--blue-hover); background: var(--blue-hover); box-shadow: none; }
.btn-white { border: 1px solid var(--line); background: #fff; color: #46566f; }
.btn-white:hover:not(:disabled) { border-color: #cbd2dd; background: #fafbfc; }
.btn-danger { background: var(--danger); color: #fff; }
.btn:active:not(:disabled), .quick-action:active { transform: translateY(1px); }
.btn:disabled, .btn[aria-busy="true"] { cursor: not-allowed; opacity: .62; }
.btn[aria-busy="true"]::before { display: inline-block; width: 14px; height: 14px; margin-right: 8px; border: 2px solid currentColor; border-right-color: transparent; border-radius: 50%; content: ''; animation: visual-system-spin .7s linear infinite; vertical-align: -2px; }
.field input, .field select, .field textarea, .search-input, .select-input, .text-input { min-height: 38px; padding: 10px 14px; border: 1px solid var(--line); border-radius: 8px; background: #fff; color: var(--ink); font-size: 13px; }
.field input:focus, .field select:focus, .field textarea:focus, .search-input:focus, .select-input:focus, .text-input:focus { border-color: var(--blue); box-shadow: 0 0 0 3px rgb(43 108 229 / 10%); outline: 0; }
.field label { color: #535d6c; font-size: 13px; }
.field-hint, .cell-sub, .callout, .activity-copy small { color: var(--muted); font-size: 12px; }
.table-tools { gap: 12px; border-bottom-color: var(--line); }
.table-wrap th { height: 44px; background: #fafbfc; color: var(--muted); font-size: 12px; font-weight: 600; vertical-align: middle; }
.table-wrap tr { height: 46px; }
.table-wrap td { vertical-align: middle; border-top-color: var(--line); color: #495362; font-size: 13px; }
.table-wrap td strong { color: var(--ink); font-size: 13px; font-weight: 500; }
.status-badge { padding: 4px 9px; border-radius: 12px; background: #e6f7ef; color: #1a7a54; font-size: 12px; }
.status-badge.pending { background: #fef3c7; color: #a35a04; }
.status-badge.inactive { background: #f0f1f3; color: #717985; }
.status-badge.blue { background: var(--blue-soft); color: var(--blue); }
.action-link { color: var(--blue); font-size: 13px; }
.table-footer { color: var(--muted); font-size: 12px; }
.pagination button { min-width: 30px; min-height: 30px; border-color: var(--line); border-radius: 6px; background: #fff; color: #596474; }
.pagination button:first-child { border-color: #c9d9f5; background: var(--blue-soft); color: var(--blue); }
.progress-cell { color: var(--ink); }
.mini-progress { background: #edf0f4; }
.mini-progress i { background: var(--blue); }
.callout { border: 1px solid #dbe6fa; border-radius: 8px; background: #f5f8fe; line-height: 1.7; }
.callout strong { color: #4f5d73; }
.form-grid { gap: 16px; }
.switch-row { border-bottom-color: var(--line); }
.switch-row b { color: var(--ink); font-size: 13px; font-weight: 500; }
.switch-row small { color: var(--muted); font-size: 12px; }
.switch:checked { background: var(--blue); }
.tag { border-radius: 4px; }
.toast { top: 18px; right: 20px; bottom: auto; left: auto; border-radius: 8px; background: #303846; box-shadow: 0 4px 12px rgb(24 34 52 / 12%); font-size: 13px; transform: translateY(-8px); }
.toast.show { transform: translateY(0); }
.toast.success { background: var(--mint); }
.toast.error { background: var(--danger); }
.login-gate { background: var(--bg); }
.login-panel, .password-modal { border: 1px solid var(--line); border-radius: 12px; box-shadow: 0 8px 28px rgb(28 43 66 / 7%); }
.login-panel h1, .password-modal h2 { color: var(--ink); }
.login-panel > .muted, .password-modal > .muted { color: var(--muted); font-size: 13px; }
.login-field span { color: #535d6c; font-size: 13px; }
.login-field input { min-height: 40px; border-color: var(--line); border-radius: 8px; font-size: 14px; }
.login-field input:focus { border-color: var(--blue); box-shadow: 0 0 0 3px rgb(43 108 229 / 10%); }
.login-help { color: var(--muted); font-size: 12px; }
.btn:focus-visible, .nav-link:focus-visible, .quick-action:focus-visible, .action-link:focus-visible, .workspace-tab button:focus-visible, .field input:focus-visible, .field select:focus-visible, .field textarea:focus-visible, .search-input:focus-visible, .select-input:focus-visible { outline: 2px solid rgb(43 108 229 / 45%); outline-offset: 2px; }
@keyframes visual-system-spin { to { transform: rotate(360deg); } }

@media (max-width: 980px) {
  .metric-card { grid-column: span 6; }
  .dashboard-grid > :first-child, .dashboard-grid > :nth-child(2) { grid-column: span 12; }
}
@media (max-width: 760px) {
  .admin-brand { width: auto; }
  .admin-main { margin-left: 0; padding: 16px 16px 42px; }
  .topbar-right { flex: 0 0 auto; gap: 7px; }
  .user-chip > span:not(.user-avatar) { display: none; }
  #admin-logout { min-height: 32px; padding: 6px 8px; font-size: 11px; }
  .admin-topbar { padding-right: 10px; padding-left: 10px; }
  .admin-brand { min-width: 0; gap: 7px; }
  #page-content { width: 100%; }
  .breadcrumb { margin-bottom: 8px; }
  .workspace-tabs { min-height: 38px; margin-bottom: 15px; }
  .workspace-tab { min-width: 92px; }
  .workspace-tab [role="tab"] { max-width: 145px; padding-left: 9px; font-size: 13px; }
  .metric-grid, .dashboard-grid, .form-grid { gap: 12px; }
  .metric-card { padding: 15px; }
  .metric-value b { font-size: 24px; }
  .form-grid > * { grid-column: span 12; }
  .panel-head, .form-card { padding: 16px; }
  .quick-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; }
  .head-actions { flex-wrap: wrap; }
  .head-actions .btn { flex: 1 1 auto; }
  .import-layout, .navigation-config-layout { grid-template-columns: minmax(0, 1fr); }
  .navigation-config-layout { gap: 12px; }
  .report-metrics .metric-card { grid-column: span 6; }
  .nav-config-item { grid-template-columns: 25px minmax(90px, 1fr) 82px auto; gap: 7px; }
  .nav-config-item .text-input { min-width: 0; padding: 8px; }
  .overview-section-head { margin-top: 14px; }
  .demo-data-note { justify-content: center; flex: 1; }
  .table-tools { align-items: stretch; flex-direction: column; }
  .tools-left, .tools-right { width: 100%; flex-wrap: wrap; }
  .search-input { width: 100%; flex: 1; }
  .table-wrap { overflow-x: auto; }
  .toast { top: 12px; right: 12px; left: 12px; }
  body.demo-preview::after { top: 66px; }
}

/* 表格与列表行的分隔线统一走令牌；区块本身保留 1px 浅边框 + 柔和阴影（见上方卡片规则）。 */
.activity-item, .report-brand, .switch-row, .nav-config-item, .task-review-item,
.review-item, .exam-staff-option, .import-row { border-bottom-color: var(--line); }
.panel-head { border-bottom-color: var(--line); }
.overview-section-head { margin-bottom: 12px; }