/* 教学执事面板 · 统一组件与全局框架（在 workspace.css 之后加载，只用主题变量） */
@media screen {
  :root { --ok: var(--success); --font-num: ui-monospace, "SF Mono", "Menlo", "Consolas", monospace; }

  /* ---------- Toast ---------- */
  .ui-toast-host { position: fixed; z-index: 3000; right: 20px; bottom: 20px; display: flex; flex-direction: column; gap: 10px; width: min(420px, calc(100vw - 32px)); pointer-events: none; }
  /* 持久错误可能叠在弹窗底部，提示正文不拦截下方按钮；关闭和操作按钮仍可点击。 */
  .ui-toast { pointer-events: none; display: flex; align-items: flex-start; gap: 10px; padding: 12px 12px 12px 16px; border: 1px solid var(--border); border-left-width: 4px; border-radius: 10px; background: var(--bg-card); color: var(--text-primary); box-shadow: var(--shadow-lg); font-size: 14px; line-height: 1.6; animation: ui-toast-in .18s ease-out; }
  .ui-toast :is(button, a) { pointer-events: auto; }
  .ui-toast.leaving { opacity: 0; transform: translateY(6px); transition: opacity .18s, transform .18s; }
  .ui-toast-success { border-left-color: var(--success); }
  .ui-toast-error { border-left-color: var(--danger); background: var(--danger-bg); }
  .ui-toast-warning { border-left-color: var(--warning); background: var(--warning-bg); }
  .ui-toast-info { border-left-color: var(--info); }
  .ui-toast-text { flex: 1; white-space: pre-line; overflow-wrap: anywhere; }
  .ui-toast-action { border: 0; background: none; color: var(--primary); font-weight: 600; cursor: pointer; padding: 2px 4px; }
  .ui-toast-close::before { content: '×'; }
  .ui-toast-close { border: 0; background: none; color: var(--text-muted); font-size: 20px; line-height: 1; cursor: pointer; padding: 0 4px; min-width: 28px; min-height: 28px; }
  @keyframes ui-toast-in { from { opacity: 0; transform: translateY(8px); } }

  /* ---------- 对话框 ---------- */
  .ui-dialog { margin: auto; width: min(520px, calc(100vw - 32px)); max-height: calc(100dvh - 48px); padding: 0; border: 1px solid var(--border); border-radius: 16px; background: var(--bg-card); color: var(--text-primary); box-shadow: var(--shadow-lg); overflow: auto; }
  .ui-dialog-form { padding: 24px; }
  .ui-dialog-title { color: var(--heading); font-size: 19px; font-weight: 600; margin: 0 0 8px; }
  .ui-dialog-danger .ui-dialog-title { color: var(--danger); }
  .ui-dialog-description, .ui-dialog-message { color: var(--text-secondary); font-size: 15px; line-height: 1.75; margin-bottom: 14px; }
  .ui-dialog-message p { margin: 0 0 6px; overflow-wrap: anywhere; }
  .ui-dialog-error { margin: 12px 0 0; padding: 10px 12px; border-radius: 8px; background: var(--danger-bg); color: var(--danger); font-size: 14px; }
  .ui-dialog-actions { display: flex; justify-content: flex-end; gap: 10px; margin-top: 22px; flex-wrap: wrap; }
  .ui-dialog-actions .btn { min-width: 88px; min-height: 40px; }
  .ui-field { display: flex; flex-direction: column; gap: 6px; }
  .ui-label { font-size: 14px; color: var(--text-secondary); font-weight: 500; }
  .ui-hint { color: var(--text-muted); font-size: 13px; line-height: 1.6; }
  .ui-dialog :is(input:not([type=radio]):not([type=checkbox]), select, textarea) { width: 100%; }
  .ui-dialog textarea { resize: vertical; min-height: 84px; line-height: 1.7; }
  .ui-form-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; }
  .ui-form-grid .wide { grid-column: 1 / -1; }
  .ui-chips { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 4px; }
  .ui-chip { border: 1px solid var(--border); background: var(--bg-soft); color: var(--text-secondary); border-radius: 999px; padding: 5px 12px; font-size: 13px; cursor: pointer; min-height: 32px; }
  .ui-chip:hover { border-color: var(--primary); color: var(--primary); }
  .ui-radio-group { display: grid; gap: 8px; }
  .ui-radio { display: grid; grid-template-columns: auto 1fr; column-gap: 10px; align-items: center; padding: 10px 12px; border: 1px solid var(--border); border-radius: 10px; cursor: pointer; }
  .ui-radio:has(input:checked) { border-color: var(--primary); background: var(--primary-bg); }
  .ui-radio small { grid-column: 2; color: var(--text-muted); font-size: 13px; }
  .ui-money-input { display: flex; align-items: center; border: 1px solid var(--border-strong); border-radius: 8px; background: var(--bg-card); padding-left: 11px; }
  .ui-money-input:focus-within { border-color: var(--primary); box-shadow: 0 0 0 3px #365f6318; }
  .ui-money-input span { color: var(--text-muted); }
  .ui-dialog .ui-money-input input { border: 0; box-shadow: none; text-align: right; font-variant-numeric: tabular-nums; background: transparent; }
  .ui-secret { display: flex; gap: 10px; align-items: center; margin: 4px 0 12px; }
  .ui-secret-value { flex: 1; padding: 12px 14px; border: 1px dashed var(--border-strong); border-radius: 10px; background: var(--bg-soft); color: var(--heading); font: 600 20px/1.2 var(--font-num); letter-spacing: .08em; user-select: all; }
  @media (max-width: 640px) {
    .ui-form-grid { grid-template-columns: 1fr; }
    .ui-dialog { width: 100vw; max-width: 100vw; margin: auto 0 0; border-radius: 16px 16px 0 0; max-height: 90dvh; }
    .ui-dialog-actions { position: sticky; bottom: -24px; background: var(--bg-card); padding: 12px 0 4px; }
    .ui-dialog-actions .btn { flex: 1; }
    .ui-toast-host { right: 16px; left: 16px; bottom: 16px; width: auto; }
  }

  /* ---------- 图标 ---------- */
  .icon { width: 20px; height: 20px; flex-shrink: 0; fill: none; stroke: currentColor; stroke-width: 1.75; stroke-linecap: round; stroke-linejoin: round; }
  .skip-link { position: absolute; left: 12px; top: -48px; z-index: 4000; padding: 8px 14px; border-radius: 8px; background: var(--primary); color: var(--primary-contrast); }
  .skip-link:focus { top: 12px; }

  /* ---------- 侧边栏：线性图标、分组按钮、可收成图标栏 ---------- */
  .sidebar-header { display: flex; align-items: center; justify-content: space-between; gap: 8px; padding: 20px 14px 20px 18px; }
  .logo { color: inherit; text-decoration: none; min-width: 0; }
  .sidebar-rail-toggle { display: inline-grid; place-items: center; width: 34px; height: 34px; border: 1px solid transparent; border-radius: 8px; background: transparent; color: var(--text-muted); cursor: pointer; flex-shrink: 0; }
  .sidebar-rail-toggle:hover { background: var(--bg-sidebar-hover); color: var(--heading); }
  .nav-section-title { width: 100%; border: 0; background: transparent; font: inherit; font-size: 14px; font-weight: 600; text-align: left; border-radius: 8px; padding: 16px 12px 8px; }
  .nav-section-title .section-arrow { width: 16px; height: 16px; }
  .nav-item a { gap: 11px; min-height: 40px; }
  .nav-item .nav-icon { width: 19px; height: 19px; color: var(--text-muted); font-size: inherit; }
  .nav-item a:hover .nav-icon, .nav-item.active .nav-icon { color: var(--primary); }
  .nav-label { min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
  @media (min-width: 769px) {
    :root[data-sidebar="rail"] { --sidebar-width: 68px; }
    :root[data-sidebar="rail"] .sidebar-header { flex-direction: column; padding: 16px 8px; gap: 10px; }
    :root[data-sidebar="rail"] :is(.logo-text, .nav-label, .sidebar-footer, .nav-section-title span, .nav-section-title .section-arrow) { display: none; }
    :root[data-sidebar="rail"] .nav-menu { padding: 10px 8px; }
    :root[data-sidebar="rail"] .nav-section-title { padding: 6px 0; min-height: 13px; pointer-events: none; }
    :root[data-sidebar="rail"] .nav-section-title::before { content: ''; display: block; width: 100%; border-top: 1px solid var(--border); }
    :root[data-sidebar="rail"] .nav-section-group.collapsed .nav-section-children { max-height: none; }
    :root[data-sidebar="rail"] .nav-item a { justify-content: center; padding: 10px 0; }
    :root[data-sidebar="rail"] .sidebar-rail-toggle .icon { transform: scaleX(-1); }
    .main-content, .sidebar { transition: margin-left .2s, width .2s; }
  }

  /* ---------- 顶栏 ---------- */
  .page-header { min-height: 72px; padding: 14px 32px; gap: 14px; }
  .page-title { flex: 1; min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
  .page-actions { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
  .page-actions:empty { display: none; }
  .page-actions-wrap { gap: 10px; }
  .header-icon-button { position: relative; display: inline-grid; place-items: center; width: 40px; height: 40px; border: 1px solid var(--border); border-radius: 10px; background: var(--bg-card); color: var(--text-secondary); cursor: pointer; }
  .header-icon-button:hover { color: var(--heading); border-color: var(--border-strong); }
  .header-badge { position: absolute; top: -6px; right: -6px; min-width: 19px; height: 19px; padding: 0 5px; border-radius: 999px; background: var(--danger); color: #fff; font-size: 11px; font-weight: 700; line-height: 19px; text-align: center; font-variant-numeric: tabular-nums; border: 2px solid var(--bg-page); box-sizing: content-box; }
  :root[data-ui-theme="dark"] .header-badge { color: var(--bg-page); }
  .header-badge[hidden] { display: none; }
  .user-menu-dropdown { min-width: 260px; padding: 8px; }
  .user-menu-who { display: flex; flex-direction: column; padding: 8px 10px 12px; border-bottom: 1px solid var(--border-light); margin-bottom: 6px; }
  .user-menu-who strong { color: var(--heading); }
  .user-menu-who span { color: var(--text-muted); font-size: 13px; }
  .user-menu-section-label { padding: 6px 10px 6px; color: var(--text-muted); font-size: 12px; }
  .user-menu-dropdown .theme-switch { display: flex; margin: 0 6px 8px; }
  .user-menu-dropdown .theme-switch button { flex: 1; padding: 6px 4px; font-size: 13px; gap: 4px; }
  .user-menu-dropdown .theme-switch button svg { width: 15px; height: 15px; }
  .user-menu-item { display: flex; align-items: center; gap: 10px; width: 100%; padding: 10px; border: 0; background: none; color: var(--text-primary); font: inherit; font-size: 14px; text-align: left; cursor: pointer; border-radius: 8px; }
  .user-menu-item .icon { width: 18px; height: 18px; color: var(--text-muted); }
  .user-menu-item:hover { background: var(--bg-hover); }

  /* ---------- 抽屉（提醒与周报） ---------- */
  .ui-drawer { margin: 0 0 0 auto; height: 100dvh; max-height: 100dvh; width: min(480px, 100vw); padding: 0; border: 0; border-left: 1px solid var(--border); border-radius: 0; background: var(--bg-page); color: var(--text-primary); box-shadow: var(--shadow-lg); }
  .ui-drawer[open] { display: flex; flex-direction: column; animation: ui-drawer-in .2s ease-out; }
  @keyframes ui-drawer-in { from { transform: translateX(24px); opacity: 0; } }
  .ui-drawer-head { display: flex; align-items: center; gap: 10px; padding: 18px 20px; border-bottom: 1px solid var(--border); background: var(--bg-card); }
  .ui-drawer-head h2 { flex: 1; color: var(--heading); font-size: 18px; margin: 0; }
  .ui-drawer-body { flex: 1; overflow: auto; padding: 16px 20px 32px; display: grid; gap: 12px; align-content: start; }
  .inbox-item { padding: 14px 16px; border: 1px solid var(--border); border-radius: 12px; background: var(--bg-card); }
  .inbox-item.unread { border-left: 4px solid var(--primary); }
  .inbox-item-head { display: flex; justify-content: space-between; color: var(--text-muted); font-size: 13px; }
  .inbox-kind { color: var(--gold); font-weight: 600; }
  .inbox-item h3 { font-size: 15px; color: var(--heading); margin: 6px 0 10px; line-height: 1.6; }
  .inbox-item details { margin: 8px 0; }
  .inbox-actions { display: flex; gap: 8px; flex-wrap: wrap; }

  /* ---------- 骨架屏与空状态 ---------- */
  .skeleton-list { display: grid; gap: 12px; padding: 4px 0; }
  .skeleton-line { height: 54px; border-radius: 10px; background: linear-gradient(90deg, var(--bg-soft) 0%, var(--bg-hover) 50%, var(--bg-soft) 100%); background-size: 200% 100%; animation: ui-shimmer 1.2s linear infinite; }
  @keyframes ui-shimmer { to { background-position: -200% 0; } }

  /* ---------- 手机提示条 ---------- */
  .mobile-desktop-hint { align-items: center; justify-content: space-between; gap: 12px; background: var(--gold-bg); color: var(--gold-text); border-bottom: 1px solid var(--border); font-size: 13px; }
  .mobile-hint-close { flex-shrink: 0; border: 1px solid currentColor; background: transparent; color: inherit; border-radius: 999px; padding: 4px 12px; font-size: 13px; min-height: 30px; cursor: pointer; }

  /* ---------- 表格与数字规范（C4/B5） ---------- */
  .num, td.num, th.num, .money { text-align: right; font-variant-numeric: tabular-nums; white-space: nowrap; }
  .money.negative, .num.negative { color: var(--danger); }
  .content-body table td, .content-body table th { font-variant-numeric: tabular-nums; }
  .clamp-2 { display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }

  /* ---------- 页头去重（C1）与概览标签（C2） ---------- */
  .page-intro { margin-bottom: 18px; align-items: center; }
  .page-intro .section-label { display: none; }
  .page-intro h2 { font-size: 18px; margin: 0 0 4px; }
  .page-intro p { font-size: 14px; line-height: 1.7; }
  .summary-strip.summary-chips { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 16px; }
  .summary-chips .summary-item { display: inline-flex; align-items: baseline; gap: 8px; padding: 7px 16px; border: 1px solid var(--border); border-radius: 999px; background: var(--bg-card); font: inherit; color: inherit; }
  .summary-chips .summary-item span { font-size: 14px; }
  .summary-chips .summary-item strong { font-size: 17px; margin: 0; }
  .summary-chips button.summary-item { cursor: pointer; }
  .summary-chips button.summary-item:hover { border-color: var(--primary); }
  .summary-chips .summary-item[aria-pressed="true"] { background: var(--primary-bg); border-color: var(--primary); }
  .summary-chips .summary-item[aria-pressed="true"] :is(span, strong) { color: var(--primary-dark); }
  @media (max-width: 768px) {
    .page-intro p { display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
    .summary-chips .summary-item { padding: 6px 12px; }
  }

  .legacy-banner { display: flex; align-items: center; flex-wrap: wrap; gap: 8px 12px; padding: 12px 16px; margin-bottom: 16px; border: 1px solid var(--border); border-left: 4px solid var(--gold); border-radius: 10px; background: var(--gold-bg); color: var(--gold-text); font-size: 14px; }
  .legacy-banner .btn { margin-left: auto; }

  /* ---------- 页面顶部的工具折叠区：收成一排工具按钮，展开时占满一行 ---------- */
  section[data-center-control] { display: flex; flex-wrap: wrap; gap: 8px; align-items: flex-start; padding: 12px 14px !important; margin-bottom: 16px !important; }
  section[data-center-control] > details { flex: 0 1 auto; }
  section[data-center-control] > details[open] { flex-basis: 100%; padding: 4px 4px 8px; }
  .content-body section[data-center-control] > details > summary { list-style: none; display: inline-flex; align-items: center; gap: 8px; min-height: 36px; padding: 6px 14px; border: 1px solid var(--border); border-radius: 999px; background: var(--bg-soft); color: var(--text-primary); font-size: 14px; font-weight: 500; }
  section[data-center-control] > details > summary::-webkit-details-marker { display: none; }
  section[data-center-control] > details > summary::after { content: ''; width: 6px; height: 6px; border-right: 1.5px solid currentColor; border-bottom: 1.5px solid currentColor; transform: rotate(45deg) translateY(-2px); opacity: .6; }
  section[data-center-control] > details[open] > summary { background: var(--primary-bg); border-color: var(--primary); color: var(--primary-dark); }
  section[data-center-control] > details[open] > summary::after { transform: rotate(-135deg) translateY(-1px); }
  section[data-center-control] .center-control-message:empty { display: none; }
  section[data-center-control] .center-control-message { flex-basis: 100%; }

  /* 旧样式里的 toast 只保留类名兼容，外观交给 .ui-toast。 */
  .ui-toast.toast { position: static; transform: none; min-width: 0; color: var(--text-primary); }

  @media (max-width: 768px) {
    .page-header { padding: 10px 12px; flex-wrap: wrap; min-height: 60px; }
    .page-actions { display: flex; order: 10; width: 100%; overflow-x: auto; flex-wrap: nowrap; padding-bottom: 2px; }
    .page-actions .btn { flex-shrink: 0; }
    .header-icon-button { width: 38px; height: 38px; }
    .mobile-menu-toggle { width: 38px; height: 38px; }
    .mobile-menu-toggle .icon { width: 22px; height: 22px; }
    .mobile-desktop-hint { display: flex; padding: 8px 12px 8px 16px; }
    .sidebar-rail-toggle { display: none; }
    .user-menu-dropdown { position: fixed; top: 64px; right: 12px; left: auto; width: min(300px, calc(100vw - 24px)); }
    .ui-drawer { width: 100vw; }
  }
}