:root {
  --workspace-bg: #0d0d0f;
  --workspace-surface: #171719;
  --workspace-surface-raised: #202024;
  --workspace-border: #303136;
  --workspace-text: #f4f4f5;
  --workspace-muted: #999ba3;
  --workspace-accent: #ed1c24;
  --workspace-radius: 12px;
  --workspace-shadow: 0 18px 60px rgba(0,0,0,.35);
}

html { background: var(--workspace-bg); }
body.workspace-page {
  margin: 0;
  min-height: 100vh;
  background: var(--workspace-bg) !important;
  color: var(--workspace-text) !important;
  font-family: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}
.workspace-page *, .workspace-page *::before, .workspace-page *::after { box-sizing: border-box; }
.workspace-page a { color: inherit; }
.workspace-shell { width: min(1120px, 100%); margin: 0 auto; padding: 24px; }
.workspace-topbar {
  position: sticky; top: 0; z-index: 30;
  min-height: 64px; padding: 12px max(20px, env(safe-area-inset-left));
  display: flex; align-items: center; justify-content: space-between; gap: 16px;
  background: rgba(13,13,15,.92) !important; border-bottom: 1px solid var(--workspace-border) !important;
  backdrop-filter: blur(18px); -webkit-backdrop-filter: blur(18px);
}
.workspace-brand { display:flex; align-items:center; gap:10px; min-width:0; font-weight:800; }
.workspace-mark { width:34px; height:34px; border-radius:8px; display:grid; place-items:center; background:var(--workspace-accent); color:#fff; font-size:11px; font-weight:900; }
.workspace-title { margin:0; font-size:16px; line-height:1.25; color:var(--workspace-text); overflow:hidden; white-space:nowrap; text-overflow:ellipsis; }
.workspace-subtitle { margin-top:3px; color:var(--workspace-muted); font-size:12px; }
.workspace-back, .workspace-button {
  min-height:38px; padding:8px 12px; display:inline-flex; align-items:center; justify-content:center; gap:7px;
  border:1px solid var(--workspace-border) !important; border-radius:9px !important;
  background:var(--workspace-surface) !important; color:var(--workspace-text) !important;
  font:700 13px/1 inherit; text-decoration:none; cursor:pointer;
}
.workspace-button.primary { background:var(--workspace-accent) !important; border-color:var(--workspace-accent) !important; color:#fff !important; }
.workspace-panel { background:var(--workspace-surface) !important; border:1px solid var(--workspace-border) !important; border-radius:var(--workspace-radius) !important; box-shadow:none !important; }
.workspace-page .bg-white, .workspace-page .bg-slate-50 { background-color:var(--workspace-surface) !important; }
.workspace-page .border, .workspace-page .border-b { border-color:var(--workspace-border) !important; }
.workspace-page .text-slate-800, .workspace-page .text-slate-700 { color:var(--workspace-text) !important; }
.workspace-page .text-slate-500, .workspace-page .text-slate-400 { color:var(--workspace-muted) !important; }
.workspace-page header.sticky { background:rgba(13,13,15,.94) !important; border-color:var(--workspace-border) !important; backdrop-filter:blur(18px); }
.workspace-page input, .workspace-page select, .workspace-page textarea { background:#111113; color:var(--workspace-text); border-color:var(--workspace-border); }
.workspace-page .shell { width:min(1180px,100%); }
.workspace-page .topbar, .workspace-page .site-nav { background:transparent !important; border-color:var(--workspace-border) !important; }
.workspace-page .card, .workspace-page .column, .workspace-page .hero, .workspace-page .sidebar, .workspace-page .calendar-container { background:var(--workspace-surface) !important; border-color:var(--workspace-border) !important; box-shadow:none !important; }
.workspace-page .logo { background:var(--workspace-accent) !important; }
.workspace-page .btn, .workspace-page .nav-link { border-color:var(--workspace-border) !important; background:var(--workspace-surface-raised) !important; color:var(--workspace-text) !important; }
.workspace-page .reader-pane, .workspace-page .reader-grid, .workspace-page .article-content { background:var(--workspace-bg) !important; color:var(--workspace-text) !important; }
.workspace-page .reader-pane h1, .workspace-page .reader-pane h2, .workspace-page .reader-pane p { color:inherit; }
.workspace-page .article-summary-card { background:#24201b !important; border-color:#f5b51b !important; }
.workspace-page .article-summary-card p { color:#e9e5df !important; }
.workspace-page .article-summary-card .text-amber-700 { color:#f5c34f !important; }

.tool-sheet-backdrop { position:fixed; inset:0; z-index:190; background:rgba(0,0,0,.58); }
.tool-sheet {
  position:fixed; left:0; right:0; bottom:0; z-index:200; padding:10px 16px calc(20px + env(safe-area-inset-bottom));
  background:var(--workspace-surface); border-top:1px solid var(--workspace-border); border-radius:18px 18px 0 0;
  box-shadow:var(--workspace-shadow);
}
.tool-sheet-handle { width:38px; height:4px; margin:0 auto 14px; border-radius:999px; background:#4a4b50; }
.tool-sheet-title { margin:0 0 10px; font-size:13px; color:var(--workspace-muted); font-weight:700; }
.tool-sheet-grid { display:grid; grid-template-columns:repeat(2,minmax(0,1fr)); gap:8px; }
.tool-sheet .fab-item { position:static !important; transform:none !important; width:100%; min-height:46px; justify-content:flex-start; border-radius:10px; background:var(--workspace-surface-raised); border:1px solid var(--workspace-border); box-shadow:none; color:var(--workspace-text) !important; }
.mobile-account-trigger { display:none !important; position:relative; }
.mobile-account-dot { position:absolute; right:6px; bottom:6px; width:7px; height:7px; border-radius:50%; background:#777; border:2px solid var(--workspace-bg); }
.mobile-account-trigger.is-online .mobile-account-dot { background:#21b77a; }

.settings-modal { width:min(520px,calc(100vw - 24px)) !important; max-height:min(780px,calc(100dvh - 24px)); overflow:auto; padding:18px !important; background:var(--workspace-surface) !important; color:var(--workspace-text) !important; border-color:var(--workspace-border) !important; }
.settings-modal label, .settings-modal .modal-title { color:var(--workspace-text) !important; }
.settings-modal p, .settings-modal span:not(.btn span) { color:var(--workspace-muted); }
.settings-modal input, .settings-modal select { background:#111113 !important; color:var(--workspace-text) !important; border-color:var(--workspace-border) !important; }
.settings-modal .btn-ghost { background:var(--workspace-surface-raised) !important; color:var(--workspace-text) !important; border-color:var(--workspace-border) !important; }
.settings-head { position:sticky; top:0; z-index:2; padding:18px 20px; display:flex; align-items:center; justify-content:space-between; background:var(--workspace-surface); border-bottom:1px solid var(--workspace-border); }
.settings-body { padding:18px 20px 22px; }
.settings-section + .settings-section { margin-top:20px; padding-top:20px; border-top:1px solid var(--workspace-border); }
.settings-section-title { margin:0 0 4px; font-size:14px; font-weight:800; }
.settings-help { margin:0 0 12px; color:var(--workspace-muted); font-size:12px; line-height:1.55; }
.settings-status { display:flex; align-items:center; gap:8px; margin-bottom:12px; font-size:13px; }
.settings-status-dot { width:8px; height:8px; border-radius:50%; background:#666; }
.settings-status-dot.online { background:#21b77a; box-shadow:0 0 0 4px rgba(33,183,122,.12); }
.settings-advanced { margin-top:14px; }
.settings-legacy { display:none; }
body[data-host-mode="legacy"] .settings-legacy { display:block; }

.article-mobile-actions { display:none; }
.article-reader-layout { overflow:hidden; }
@media (max-width: 639px) {
  .workspace-shell { padding:16px 16px calc(82px + env(safe-area-inset-bottom)); }
  .workspace-topbar { min-height:56px; padding:10px 14px; }
  .workspace-subtitle { display:none; }
  .tool-sheet-grid { grid-template-columns:repeat(2,minmax(0,1fr)); }
  .mobile-account-trigger { display:inline-flex !important; }
  .tool-sheet-account { grid-column:1 / -1; }
  .settings-modal { width:100% !important; max-height:calc(100dvh - 12px); margin-top:auto; border-radius:18px 18px 0 0 !important; }
  .settings-body { padding:16px; }
  .settings-head { padding:15px 16px; }
  .settings-section input, .settings-section select { font-size:16px !important; }
  .article-mobile-actions {
    position:fixed; left:12px; right:12px; bottom:calc(12px + env(safe-area-inset-bottom)); z-index:45;
    display:grid; grid-template-columns:repeat(3,1fr); gap:8px; padding:8px;
    border:1px solid var(--workspace-border); border-radius:14px; background:rgba(23,23,25,.94); box-shadow:var(--workspace-shadow);
    backdrop-filter:blur(18px); -webkit-backdrop-filter:blur(18px);
  }
  .article-mobile-actions button { min-height:42px; border:0; border-radius:9px; background:transparent; color:var(--workspace-text); font-size:12px; font-weight:700; }
  .article-reader-layout { overflow:visible; }
  .article-reader-layout > div { min-height:auto !important; height:auto !important; overflow:visible !important; }
  .article-reader-layout article { padding-bottom:96px !important; }
  .para-cn-wrap { padding-right:28px; }
  .para-cn-wrap .para-edit-btn { right:0 !important; opacity:.55; }
}
@media (prefers-reduced-motion: reduce) { *,*::before,*::after { scroll-behavior:auto !important; transition-duration:.01ms !important; animation-duration:.01ms !important; } }

/* Learning v2 */
.learning-v2-panel { border:1px solid var(--workspace-border); border-radius:14px; overflow:hidden; background:var(--workspace-surface); }
.learning-v2-head { display:flex; justify-content:space-between; gap:16px; align-items:flex-start; padding:20px; border-bottom:1px solid var(--workspace-border); }
.learning-v2-head h2 { margin:0; font-size:20px; }
.learning-v2-head p,.learning-v2-section-head p { margin:4px 0 0; color:var(--workspace-muted); font-size:12px; line-height:1.5; }
.learning-v2-badge { padding:5px 8px; border-radius:7px; background:rgba(33,183,122,.12); color:#58d5a5; font-size:11px; white-space:nowrap; }
.learning-v2-body { padding:20px; }
.learning-v2-stats { display:grid; grid-template-columns:repeat(3,1fr); gap:10px; margin-bottom:24px; }
.learning-v2-stats div { padding:14px; border:1px solid var(--workspace-border); border-radius:10px; background:#111113; }
.learning-v2-stats strong { display:block; font-size:24px; }
.learning-v2-stats span { color:var(--workspace-muted); font-size:12px; }
.learning-v2-section-head { display:flex; justify-content:space-between; gap:16px; align-items:flex-start; margin-bottom:12px; }
.learning-v2-section-head h3 { margin:0; font-size:16px; }
.learning-v2-secondary { padding:7px 10px; border:1px solid var(--workspace-border); border-radius:8px; color:var(--workspace-muted); background:transparent; font-size:12px; }
.learning-v2-empty { padding:24px; color:var(--workspace-muted); text-align:center; }
.learning-v2-empty.success { border:1px dashed rgba(33,183,122,.35); border-radius:10px; background:rgba(33,183,122,.06); color:#75d9b3; }
.learning-v2-list { display:grid; gap:12px; }
.learning-v2-card { padding:16px; border:1px solid var(--workspace-border); border-radius:11px; background:#111113; }
.learning-v2-card-head { display:grid; grid-template-columns:auto 1fr auto; gap:10px; align-items:start; }
.learning-v2-card-head > span { padding:3px 6px; border-radius:5px; background:#28282c; color:var(--workspace-muted); font-size:10px; }
.learning-v2-card-head small { color:var(--workspace-muted); }
.learning-v2-rule { margin:12px 0; color:#dedee1; line-height:1.65; }
.learning-v2-reasoning { display:grid; gap:8px; margin:0 0 12px; }
.learning-v2-reasoning div { display:grid; grid-template-columns:120px 1fr; gap:10px; font-size:12px; }
.learning-v2-reasoning dt { color:var(--workspace-muted); }
.learning-v2-reasoning dd { margin:0; }
.learning-v2-evidence { padding:10px 0; border-top:1px solid var(--workspace-border); color:var(--workspace-muted); font-size:12px; }
.learning-v2-evidence > div { margin-top:8px; padding:8px; border-radius:8px; background:#1a1a1d; }
.learning-v2-actions { display:flex; flex-wrap:wrap; gap:8px; padding-top:12px; border-top:1px solid var(--workspace-border); }
.learning-v2-actions button { padding:7px 10px; border:1px solid var(--workspace-border); border-radius:8px; background:#232327; color:var(--workspace-text); font-size:12px; }
.learning-v2-actions .accept { background:#087b58; border-color:#087b58; }.learning-v2-actions .reject { background:#b61e3d; border-color:#b61e3d; }
.learning-v2-collapsible { margin-top:14px; padding:13px; border:1px solid var(--workspace-border); border-radius:10px; color:var(--workspace-muted); }
.learning-v2-collapsible summary { color:var(--workspace-text); cursor:pointer; font-weight:700; }
.learning-v2-compact-list { display:grid; gap:8px; margin-top:12px; }.learning-v2-compact-list div { display:grid; gap:3px; padding:10px; background:#111113; border-radius:8px; }.learning-v2-compact-list span { font-size:12px; }
@media(max-width:639px){.learning-v2-head,.learning-v2-body{padding:16px}.learning-v2-stats{grid-template-columns:repeat(3,1fr)}.learning-v2-stats div{padding:10px}.learning-v2-card-head{grid-template-columns:auto 1fr}.learning-v2-card-head small{grid-column:2}.learning-v2-reasoning div{grid-template-columns:1fr;gap:2px}.learning-v2-section-head{display:block}.learning-v2-secondary{margin-top:10px}.learning-v2-badge{display:none}}