@font-face {
  font-family: "SourceHanSansSC-Regular";
  src: url("./SourceHanSansSC-Regular.ttf") format("truetype");
  font-display: swap;
  font-weight: 400;
  font-style: normal;
}

/* ======================================================================
       Design System
       ====================================================================== */
:root {
  --sidebar-width: 320px;
  --sidebar-bg: #18181b;
  --sidebar-card-bg: #27272a;
  --sidebar-card-bg-hover: #3f3f46;
  --sidebar-card-border: rgba(255, 255, 255, 0.06);
  --sidebar-text: #f4f4f5;
  --sidebar-text-muted: #a1a1aa;
  --sidebar-border: #27272a;
  --sidebar-accent: #ffffff;
  --sidebar-accent-hover: #e4e4e7;
  --sidebar-accent-soft: rgba(255, 255, 255, 0.08);
  --sidebar-success: #34d399;
  --sidebar-warning: #fbbf24;
  --sidebar-error: #f87171;
  --sidebar-code-bg: #111113;
  --sidebar-code-text: #e4e4e7;
  --sidebar-code-keyword: #ff7b72;
  --sidebar-code-function: #79c0ff;
  --sidebar-code-string: #7ee787;

  --content-bg: #f8fafc;
  --surface: #ffffff;
  --border-color: #e2e8f0;

  --accent: #2563eb;
  --accent-hover: #1d4ed8;
  --accent-soft: rgba(37, 99, 235, 0.08);
  --success: #10b981;
  --warning: #f59e0b;
  --error: #ef4444;

  --text-primary: #0f172a;
  --text-secondary: #475569;
  --text-muted: #94a3b8;

  --font-ui: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --font-mono: 'JetBrains Mono', Consolas, monospace;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  height: 100vh;
  overflow: hidden;
  font-family: var(--font-ui);
  background: var(--content-bg);
  color: var(--text-primary);
}

/* Scrollbars */
::-webkit-scrollbar {
  width: 6px;
  height: 6px;
}

::-webkit-scrollbar-track {
  background: transparent;
}

::-webkit-scrollbar-thumb {
  background: rgba(15, 23, 42, 0.15);
  border-radius: 3px;
}

.sidebar-scrollable::-webkit-scrollbar-thumb {
  background: rgba(255, 255, 255, 0.15);
}

.doc-viewport::-webkit-scrollbar-thumb,
.md-preview-stage::-webkit-scrollbar-thumb {
  background: #cbd5e1;
}

/* ======================================================================
       App Shell & Layout
       ====================================================================== */
.app-shell {
  display: flex;
  flex-direction: row;
  height: 100vh;
  width: 100vw;
  overflow: hidden;
}

/* Sidebar */
.sidebar {
  width: var(--sidebar-width);
  background: var(--sidebar-bg);
  border-right: 1px solid var(--sidebar-border);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  flex-shrink: 0;
}

.sidebar-header {
  padding: 16px;
  border-bottom: 1px solid var(--sidebar-border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  height: 48px;
}

.sidebar-brand {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--sidebar-text);
  font-weight: 700;
  font-size: 14px;
  letter-spacing: -0.01em;
}

.sidebar-brand svg {
  width: 16px;
  height: 16px;
  color: var(--sidebar-accent);
}

.brand-studio {
  font-size: 10px;
  font-weight: 500;
  color: var(--sidebar-text-muted);
  background: var(--sidebar-card-bg);
  border: 1px solid var(--sidebar-card-border);
  padding: 1px 5px;
  border-radius: 4px;
  margin-left: 2px;
}

.sidebar-status-wrap {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-left: auto;
}

.sidebar-status {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 11px;
  color: var(--sidebar-text-muted);
}

.sidebar-github-link {
  width: 30px;
  height: 30px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--sidebar-text-muted);
  border-radius: 8px;
  border: 1px solid transparent;
  text-decoration: none;
  transition: color 0.12s ease, background-color 0.12s ease, border-color 0.12s ease;
}

.sidebar-github-link:hover {
  color: var(--sidebar-text);
  background: rgba(255, 255, 255, 0.08);
  border-color: var(--sidebar-card-border);
}

.sidebar-github-link svg {
  width: 25px;
  height: 25px;
}

.status-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--sidebar-text-muted);
}

.status-dot.loading {
  background: var(--sidebar-warning);
  animation: pulse 1.5s infinite;
}

.status-dot.success {
  background: var(--sidebar-success);
}

.status-dot.error {
  background: var(--sidebar-error);
}

@keyframes pulse {

  0%,
  100% {
    opacity: 0.5;
  }

  50% {
    opacity: 1;
  }
}

.sidebar-scrollable {
  flex: none;
  overflow: visible;
}

.sidebar-section {
  padding: 16px;
  border-bottom: 1px solid var(--sidebar-border);
}

.sidebar-section-title {
  font-size: 10px;
  font-weight: 700;
  color: var(--sidebar-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 12px;
}

/* Action buttons in sidebar */
.action-btn-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.action-btn-row {
  display: flex;
  gap: 6px;
}

.action-btn {
  flex: 1;
  height: 32px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  border-radius: 5px;
  font-family: var(--font-ui);
  font-size: 12px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.12s ease;
  border: none;
}

.action-btn svg {
  width: 13px;
  height: 13px;
  flex-shrink: 0;
}

.action-btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

.action-btn-dompdf {
  background: var(--sidebar-accent);
  color: #18181b;
  font-weight: 600;
}

.action-btn-dompdf:hover:not(:disabled) {
  background: var(--sidebar-accent-hover);
  color: #18181b;
}

.action-btn-html2pdf {
  background: var(--sidebar-card-bg);
  color: var(--sidebar-text-muted);
  border: 1px solid var(--sidebar-card-border);
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
}

.action-btn-html2pdf:hover:not(:disabled) {
  color: var(--sidebar-text);
  background: var(--sidebar-card-bg-hover);
  border-color: var(--sidebar-card-border);
}

.action-btn-compare {
  flex: none;
  align-self: stretch;
  background: var(--sidebar-card-bg);
  color: var(--sidebar-text-muted);
  border: 1px solid var(--sidebar-card-border);
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
  min-height: 38px;
  padding: 0 12px;
  border-radius: 8px;
  font-size: 12px;
  font-weight: 500;
  gap: 8px;
}

.action-btn-compare:hover:not(:disabled) {
  color: var(--sidebar-text);
  background: var(--sidebar-card-bg-hover);
  border-color: var(--sidebar-card-border);
}

.action-btn-html2pdf svg,
.action-btn-compare svg {
  opacity: 0.78;
}

.benchmark-control-group {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.benchmark-mode-switch {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 6px;
  padding: 6px;
  border: 1px solid var(--sidebar-border);
  border-radius: 10px;
  background: rgba(0, 0, 0, 0.15);
}

.benchmark-mode-btn {
  height: 34px;
  padding: 0 10px;
  border: 1px solid var(--sidebar-card-border);
  border-radius: 8px;
  background: var(--sidebar-card-bg);
  color: var(--sidebar-text-muted);
  font-family: var(--font-ui);
  font-size: 11px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.12s ease;
}

.benchmark-mode-btn:hover {
  color: var(--sidebar-text);
  background: var(--sidebar-card-bg-hover);
  border-color: var(--sidebar-card-border);
}

.benchmark-mode-btn.active {
  color: #18181b;
  background: var(--sidebar-accent);
  border-color: var(--sidebar-accent);
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.15);
}

.benchmark-toggle-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 10px 12px;
  border: 1px solid var(--sidebar-card-border);
  border-radius: 8px;
  background: var(--sidebar-card-bg);
  cursor: pointer;
}

.benchmark-toggle-row:hover {
  background: var(--sidebar-card-bg-hover);
}

.benchmark-toggle-copy {
  display: flex;
  flex-direction: column;
  gap: 3px;
  min-width: 0;
}

.benchmark-toggle-copy strong {
  font-size: 12px;
  font-weight: 600;
  color: var(--sidebar-text);
}

.benchmark-toggle-copy span {
  font-size: 11px;
  color: var(--sidebar-text-muted);
}

.benchmark-toggle-row input[type="checkbox"] {
  width: 34px;
  height: 20px;
  accent-color: var(--sidebar-accent);
  cursor: pointer;
  flex: none;
}

.benchmark-meta {
  color: var(--sidebar-text-muted);
  font-size: 11px;
  line-height: 1.55;
}

.benchmark-build-btn {
  height: 30px;
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.03);
  color: var(--sidebar-text);
  font-family: var(--font-ui);
  font-size: 11px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.12s ease;
}

.benchmark-build-btn:hover {
  background: rgba(255, 255, 255, 0.05);
  border-color: rgba(255, 255, 255, 0.1);
}

.benchmark-build-btn[hidden] {
  display: none;
}

/* Metric rows */
.metric-row-flat {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  padding: 5px 0;
  border-bottom: 1px solid var(--sidebar-border);
}

.metric-row-flat:last-of-type {
  border-bottom: none;
}

.metric-row-label {
  font-size: 11px;
  color: var(--sidebar-text-muted);
}

.metric-row-value {
  font-size: 11px;
  font-weight: 600;
  font-family: var(--font-mono);
}

.metric-row-value.dompdf-color {
  color: var(--sidebar-accent);
}

.metric-row-value.html2pdf-color {
  color: var(--sidebar-warning);
}

.metric-row-value.error {
  color: var(--sidebar-error);
}

.metric-bar-wrapper {
  height: 4px;
  background: var(--sidebar-border);
  border-radius: 2px;
  overflow: hidden;
  display: flex;
  margin-top: 6px;
  margin-bottom: 4px;
}

.metric-bar {
  height: 100%;
  transition: width 0.4s ease;
}

.metric-bar.dompdf-bar {
  background: var(--sidebar-accent);
}

.metric-bar.html2pdf-bar {
  background: var(--sidebar-warning);
}

.metric-delta {
  font-size: 10px;
  font-weight: 600;
  color: var(--sidebar-text-muted);
}

.metric-delta.positive {
  color: var(--sidebar-success);
}

/* Sidebar Footer tabs */
.sidebar-footer-tabs {
  display: flex;
  border-bottom: 1px solid var(--sidebar-border);
}

.sidebar-footer-tab {
  flex: 1;
  background: transparent;
  border: none;
  color: var(--sidebar-text-muted);
  padding: 9px 0;
  font-size: 11px;
  font-weight: 500;
  cursor: pointer;
  text-align: center;
  border-bottom: 1px solid transparent;
  transition: all 0.12s ease;
}

.sidebar-footer-tab:hover {
  color: var(--sidebar-text);
}

.sidebar-footer-tab.active {
  color: var(--sidebar-text);
  border-bottom-color: var(--sidebar-accent);
}

.sidebar-footer-panels {
  padding: 14px 16px;
  overflow-y: auto;
  flex: 1;
  min-height: 0;
}

.footer-panel {
  display: none;
}

.footer-panel.active {
  display: block;
}

.specs-mini-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 11px;
}

.specs-mini-table th,
.specs-mini-table td {
  padding: 6px 4px;
  text-align: left;
  border-bottom: 1px solid var(--sidebar-border);
}

.specs-mini-table th {
  color: var(--sidebar-text-muted);
  font-weight: 600;
  font-size: 10px;
  text-transform: uppercase;
}

.specs-mini-table td {
  color: var(--sidebar-text);
}

.specs-mini-table td:first-child {
  color: var(--sidebar-text-muted);
  font-weight: 500;
}

/* Code snippet mini */
.code-mini {
  background: var(--sidebar-code-bg);
  border: 1px solid var(--sidebar-card-border);
  border-radius: 6px;
  padding: 8px 10px;
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--sidebar-code-text);
  overflow-x: auto;
  line-height: 1.5;
  white-space: pre-wrap;
  word-break: break-all;
  margin-bottom: 10px;
}

.code-mini .kw {
  color: var(--sidebar-code-keyword);
}

.code-mini .fn {
  color: var(--sidebar-code-function);
}

.code-mini .str {
  color: var(--sidebar-code-string);
}

.code-mini .cmt {
  color: var(--sidebar-text-muted);
  font-style: italic;
}

.code-label {
  font-size: 9px;
  font-weight: 600;
  color: var(--sidebar-text-muted);
  margin-bottom: 4px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

/* ======================================================================
       Content Area
       ====================================================================== */
.content-area {
  flex: 1;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  position: relative;
}

.content-header {
  height: 48px;
  background: #ffffff;
  border-bottom: 1px solid #e2e8f0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 24px;
  flex-shrink: 0;
  z-index: 10;
}

/* Tab Switcher */
.tab-switcher {
  background: #e2e8f0;
  padding: 3px;
  border-radius: 20px;
  display: flex;
  gap: 2px;
}

.tab-btn {
  background: transparent;
  border: none;
  padding: 6px 18px;
  border-radius: 16px;
  font-family: var(--font-ui);
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  color: #475569;
  transition: all 0.2s ease;
}

.tab-btn:hover {
  color: #0f172a;
}

.tab-btn.active {
  background: #ffffff;
  color: #0f172a;
  font-weight: 600;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.08);
}

.header-info {
  font-size: 11px;
  color: #94a3b8;
  display: flex;
  align-items: center;
  gap: 12px;
}

.info-divider {
  width: 1px;
  height: 12px;
  background: #cbd5e1;
}

/* Tab Panel */
.tab-panel {
  display: none;
  flex: 1;
  overflow: hidden;
}

.tab-panel.active {
  display: flex;
  flex-direction: column;
}

.top-loading-overlay {
  position: absolute;
  top: 60px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 30;
  pointer-events: none;
}

.top-loading-card {
  min-width: 220px;
  max-width: min(72vw, 420px);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 10px 16px;
  border: 1px solid rgba(15, 23, 42, 0.08);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.94);
  color: #0f172a;
  box-shadow: 0 10px 28px rgba(15, 23, 42, 0.1);
  backdrop-filter: blur(10px);
}

.top-loading-spinner {
  width: 16px;
  height: 16px;
  border-radius: 50%;
  border: 2px solid rgba(37, 99, 235, 0.18);
  border-top-color: var(--accent);
  animation: topLoadingSpin 0.9s linear infinite;
  flex: none;
}

.top-loading-text {
  font-size: 12px;
  font-weight: 600;
  letter-spacing: -0.01em;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

@keyframes topLoadingSpin {
  from {
    transform: rotate(0deg);
  }

  to {
    transform: rotate(360deg);
  }
}

/* 轻量提示条(切换被拦截等场景) */
.mini-toast {
  position: fixed;
  top: 72px;
  left: 50%;
  transform: translateX(-50%) translateY(-8px);
  z-index: 60;
  max-width: min(80vw, 460px);
  padding: 10px 18px;
  border-radius: 999px;
  background: rgba(220, 38, 38, 0.96);
  color: #fff;
  font-size: 12.5px;
  font-weight: 600;
  letter-spacing: -0.01em;
  box-shadow: 0 12px 30px rgba(15, 23, 42, 0.18);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.22s ease, transform 0.22s ease;
}

.mini-toast.is-visible {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

/* ======================================================================
       Tab 1: 综合测试页 (basic demo)
       ====================================================================== */
.doc-viewport {
  flex: 1;
  overflow: auto;
  padding: 32px;
  display: flex;
  justify-content: center;
  align-items: flex-start;
  background-color: #f8fafc;
  background-image: radial-gradient(#cbd5e1 1.2px, transparent 0);
  background-size: 16px 16px;
}

.doc {
  width: 100%;
  max-width: 794px;
  min-height: 1123px;
  padding: 60px 68px;
  border: 1px solid var(--border-color);
  border-radius: 8px;
  background: var(--surface);
  box-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.05), 0 8px 10px -6px rgba(0, 0, 0, 0.05), 0 0 0 1px rgba(0, 0, 0, 0.02);
  line-height: 1.72;
  color: var(--text-primary);
}

/* Document typography */
.doc h1 {
  margin: 0;
  font-size: 38px;
  line-height: 1.15;
  letter-spacing: -0.02em;
  color: #0f172a;
}

.doc h2 {
  margin: 40px 0 14px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--border-color);
  font-size: 20px;
  line-height: 1.3;
  color: #0f172a;
}

.doc h3 {
  margin: 0 0 8px;
  font-size: 15px;
  color: #0f172a;
}

.doc p {
  margin: 10px 0;
}

.doc code {
  padding: 1px 5px;
  border-radius: 4px;
  background: #f1f5f9;
  font-size: 13px;
  font-family: var(--font-mono);
}

.report-hero {
  display: grid;
  grid-template-columns: minmax(0, 1.85fr) minmax(260px, 0.95fr);
  gap: 28px;
  margin-bottom: 30px;
  padding-bottom: 28px;
  border-bottom: 1px solid var(--border-color);
}

.report-pill-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 20px;
}

.report-pill {
  display: inline-flex;
  align-items: center;
  padding: 4px 10px;
  border: 1px solid #d8e1eb;
  border-radius: 999px;
  background: #ffffff;
  color: #516173;
  font-size: 11px;
  font-weight: 600;
}

.report-hero-aside {
  padding: 18px 20px;
  border: 1px solid var(--border-color);
  border-radius: 10px;
  background: linear-gradient(180deg, #fbfcfd 0%, #f4f7fa 100%);
}

.report-meta-eyebrow {
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.report-meta-list {
  list-style: none;
  margin: 12px 0 0;
  padding: 0;
}

.report-meta-list li {
  padding: 8px 0;
  border-top: 1px dashed #d7e0ea;
  color: var(--text-secondary);
  font-size: 12px;
  line-height: 1.65;
}

.report-meta-list li:first-child {
  border-top: none;
  padding-top: 0;
}

.report-kpi-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
  margin-bottom: 34px;
}

.report-kpi {
  padding: 16px;
  border: 1px solid var(--border-color);
  border-radius: 10px;
  background: linear-gradient(180deg, #ffffff 0%, #f8fbff 100%);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.72);
}

.report-kpi:nth-child(1) {
  border-color: #d7e5fb;
  background: linear-gradient(180deg, #f9fbff 0%, #eef5ff 100%);
}

.report-kpi:nth-child(2) {
  border-color: #dde4fb;
  background: linear-gradient(180deg, #fbfbff 0%, #f1f3ff 100%);
}

.report-kpi:nth-child(3) {
  border-color: #d9ece9;
  background: linear-gradient(180deg, #f8fffd 0%, #edf9f5 100%);
}

.report-kpi:nth-child(4) {
  border-color: #f2e2c7;
  background: linear-gradient(180deg, #fffdf8 0%, #fdf4e6 100%);
}

.report-kpi-label {
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.report-kpi strong {
  display: block;
  margin-top: 6px;
  font-size: 20px;
  line-height: 1.2;
  color: #0f172a;
}

.report-kpi span {
  display: inline-block;
  margin-top: 8px;
  color: var(--text-secondary);
  font-size: 12px;
  line-height: 1.55;
}

.report-section+.report-section {
  margin-top: 38px;
}

.report-section-head {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  margin-bottom: 16px;
}

.report-section-index {
  width: 34px;
  height: 34px;
  flex: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 999px;
  background: #eef3f8;
  color: #3f5872;
  font-size: 12px;
  font-weight: 700;
}

.report-section-kicker {
  margin-bottom: 4px;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.report-section-summary {
  margin: 8px 0 0;
  max-width: 58em;
  color: var(--text-secondary);
  font-size: 13px;
  line-height: 1.7;
}

.report-grid {
  display: grid;
  gap: 16px;
}

.report-grid-2 {
  grid-template-columns: minmax(0, 1fr);
}

.report-card {
  border: 1px solid var(--border-color);
  border-radius: 10px;
  background: #fbfcfd;
  padding: 20px 22px;
}

.report-card h3,
.report-mini-card h4 {
  margin: 0 0 8px;
  color: #0f172a;
}

.report-card p,
.report-mini-card p {
  color: var(--text-secondary);
}

.report-checklist {
  list-style: none;
  margin: 10px 0 0;
  padding: 0;
}

.report-checklist li {
  position: relative;
  padding: 0 0 0 18px;
  color: var(--text-secondary);
  font-size: 13px;
  line-height: 1.7;
}

.report-checklist li+li {
  margin-top: 10px;
}

.report-checklist li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 8px;
  width: 8px;
  height: 8px;
  border-radius: 999px;
  background: #7891b2;
}

.report-note {
  margin-top: 14px;
  padding: 10px 12px;
  border-left: 3px solid #7891b2;
  border-radius: 6px;
  background: #f5f8fb;
  color: var(--text-secondary);
  font-size: 12px;
  line-height: 1.7;
}

.report-image-card {
  display: grid;
  grid-template-columns: 188px minmax(0, 1fr);
  gap: 18px;
  align-items: center;
}

.report-image-card img {
  width: 188px;
  height: 126px;
  border: 1px solid var(--border-color);
  border-radius: 8px;
  object-fit: cover;
  background: #e7edf2;
}

.report-raster-card {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.report-raster-image {
  width: 100%;
  height: 390px;
  display: block;
  border: 1px solid var(--border-color);
  border-radius: 10px;
  object-fit: cover;
  background: #e7edf2;
}

.report-raster-copy {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.report-pill-row-compact {
  margin-top: 4px;
}

.report-note-tight {
  margin-top: 0;
}

.report-svg-figure {
  width: 100%;
  height: auto;
  display: block;
  border: 1px solid var(--border-color);
  border-radius: 10px;
  background: #ffffff;
}

.report-figure-caption {
  margin: 10px 0 0;
  color: var(--text-secondary);
  font-size: 12px;
  line-height: 1.65;
}

.report-mini-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 12px;
  margin-top: 14px;
}

.report-mini-card {
  padding: 14px 16px;
  border: 1px solid #e3e9ef;
  border-radius: 8px;
  background: #ffffff;
}

.report-table-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 12px;
}

.report-table-subtle {
  color: var(--text-muted);
  font-size: 12px;
}

.report-table-shell {
  background: #ffffff;
}

.report-table thead th {
  white-space: nowrap;
}

.report-table thead tr:first-child th {
  border-bottom: 2px solid #cbd5e1;
  text-align: center;
}

.report-table thead tr:first-child th:first-child {
  text-align: left;
}

.report-table thead tr:nth-child(2) th {
  text-align: right;
  font-size: 11px;
  font-weight: 600;
  border-bottom: 1px solid #cbd5e1;
}

.report-table td.report-cell-metric {
  text-align: right;
  white-space: nowrap;
}

.report-table td.report-cell-group {
  background: #fcfbfa;
  font-weight: 600;
  vertical-align: middle;
}

.report-table td.report-cell-status {
  text-align: center;
  font-weight: 700;
  vertical-align: middle;
  white-space: nowrap;
}

.report-table td.report-cell-status.is-good {
  background: #f0fdf4;
  color: #15803d;
}

.report-table td.report-cell-status.is-stable {
  background: #eff6ff;
  color: #1d40af;
}

.report-table td.report-cell-status.is-watch {
  background: #fff7ed;
  color: #b45309;
}

.report-table td.report-cell-positive {
  color: var(--success);
  font-weight: 600;
}

.report-table td.report-cell-warning {
  color: #b45309;
  font-weight: 600;
}

.report-status-chip {
  display: inline-flex;
  align-items: center;
  padding: 4px 10px;
  border-radius: 999px;
  background: #eef4fb;
  color: #3d5873;
  font-size: 11px;
  font-weight: 600;
  white-space: nowrap;
}

.report-appendix {
  border: 1px solid var(--border-color);
  border-radius: 10px;
  background: #fbfcfd;
  padding: 18px 20px;
}

.report-appendix-note {
  margin-bottom: 12px;
  color: var(--text-secondary);
  font-size: 12px;
  line-height: 1.65;
}

.report-long-list {
  padding-left: 22px;
}

.report-long-list li {
  margin: 0 0 10px;
  color: var(--text-secondary);
  font-size: 13px;
  line-height: 1.75;
}

.report-long-list-item {
  display: block;
}

.report-long-list-item+.report-long-list-item {
  margin-top: 6px;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.8fr) minmax(260px, 1fr);
  gap: 28px;
  margin-bottom: 30px;
  padding-bottom: 26px;
  border-bottom: 1px solid var(--border-color);
}

.eyebrow {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 8px;
}

.lede {
  max-width: 44em;
  color: var(--text-secondary);
  font-size: 14px;
  line-height: 1.6;
}

.tag-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 20px;
}

.tag {
  display: inline-block;
  padding: 4px 10px;
  border: 1px solid #cbd5e1;
  border-radius: 6px;
  background: #f1f5f9;
  color: #475569;
  font-size: 12px;
  font-weight: 500;
}

.hero-panel {
  padding: 18px 20px;
  border: 1px solid var(--border-color);
  border-radius: 8px;
  background: #f8fafc;
}

.hero-panel .label {
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.hero-panel .value {
  margin-top: 8px;
  font-size: 15px;
  font-weight: 700;
  line-height: 1.3;
  color: #0f172a;
}

.hero-panel ul {
  margin: 14px 0 0;
  padding-left: 18px;
  color: var(--text-secondary);
  font-size: 12px;
  line-height: 1.6;
}

.hero-panel ul li {
  margin-bottom: 4px;
}

.metric-grid-doc {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
  margin-bottom: 34px;
}

.metric-card-doc {
  padding: 16px;
  border: 1px solid var(--border-color);
  border-radius: 8px;
  background: #f8fafc;
}

.metric-card-doc .metric-label-doc {
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.metric-card-doc strong {
  display: block;
  margin-top: 6px;
  font-size: 20px;
  line-height: 1.2;
  color: #0f172a;
}

.metric-card-doc span {
  display: inline-block;
  margin-top: 8px;
  font-size: 12px;
  font-weight: 500;
}

.doc-positive {
  color: var(--success);
}

.doc-neutral {
  color: var(--warning);
}

.summary-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 16px;
}

.note-card,
.rail-card,
.rich-card {
  border: 1px solid var(--border-color);
  border-radius: 8px;
  background: #f8fafc;
  padding: 18px 20px;
}

.compact-list {
  margin: 10px 0 0;
  padding-left: 18px;
}

.card-img {
  display: grid;
  grid-template-columns: 220px minmax(0, 1fr);
  gap: 18px;
  align-items: center;
  padding: 16px;
  border: 1px solid var(--border-color);
  border-radius: 8px;
  background: #f8fafc;
}

.card-img img {
  width: 220px;
  height: 140px;
  flex: none;
  border-radius: 6px;
  object-fit: cover;
  background: #d7e5ea;
}

.badge-row-doc {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 12px;
}

.badge-doc {
  padding: 4px 8px;
  border-radius: 4px;
  background: #fef3c7;
  color: #d97706;
  font-size: 11px;
  font-weight: 600;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
  margin: 14px 0 18px;
}

.feature-card {
  position: relative;
  min-height: 140px;
  overflow: hidden;
  border: 1px solid var(--border-color);
  border-radius: 8px;
}

.feature-card::before {
  content: "";
  position: absolute;
  inset: 0;
}

.feature-card>div {
  position: relative;
  z-index: 1;
  padding: 18px 20px;
}

.feature-card .feature-tag {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 4px;
  background: rgba(255, 255, 255, 0.86);
  font-size: 11px;
  font-weight: 700;
  margin-bottom: 6px;
}

.gradient-card {
  background: #e7eef2;
}

.gradient-card::before {
  background-image: linear-gradient(180deg, rgba(255, 255, 255, 0.42) 0%, rgba(169, 198, 208, 0.42) 52%, rgba(124, 156, 170, 0.58) 100%);
}

.radial-card {
  background: #e3ecec;
}

.radial-card::before {
  background-image: radial-gradient(circle at 30% 30%, rgba(255, 255, 255, 0.92), rgba(181, 209, 214, 0.76) 35%, rgba(95, 131, 140, 0.9) 100%);
}

.opacity-panel {
  padding: 20px 22px;
  border: 1px solid var(--border-color);
  border-radius: 8px;
  background: #f8fafc;
}

.opacity-stack {
  position: relative;
  height: 180px;
  margin-top: 12px;
  overflow: hidden;
  border-radius: 8px;
  background: linear-gradient(135deg, #e4e8e6 0%, #cbd7d2 100%);
}

.opacity-base {
  position: absolute;
  inset: 0;
  padding: 18px;
  display: flex;
  align-items: flex-end;
  font-weight: 700;
  background: radial-gradient(circle at top left, rgba(255, 255, 255, 0.88), rgba(148, 163, 184, 0.4) 45%, rgba(51, 65, 85, 0.18) 100%);
}

.opacity-float {
  position: absolute;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 8px;
  font-weight: 700;
  color: #27343a;
}

.opacity-a {
  top: 20px;
  left: 28px;
  width: 210px;
  height: 92px;
  background: #4f9dbc;
  opacity: 0.72;
}

.opacity-b {
  right: 28px;
  bottom: 22px;
  width: 220px;
  height: 104px;
  background: #d2a05e;
  opacity: 0.48;
}

.table-shell {
  overflow: hidden;
  border: 1px solid var(--border-color);
  border-radius: 8px;
}

.doc table {
  width: 100%;
  border-collapse: collapse;
}

.doc th,
.doc td {
  padding: 12px 14px;
  border-bottom: 1px solid var(--border-color);
  text-align: left;
  vertical-align: top;
  font-size: 13px;
}

.doc thead th {
  background: #f1f5f9;
  color: var(--text-secondary);
  font-size: 12px;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  font-weight: 600;
}

.doc tbody tr:nth-child(even) td {
  background: #fafcfe;
}

.doc tbody tr:last-child td {
  border-bottom: 0;
}

.cn-copy {
  font-family: "SourceHanSansSC-Regular", sans-serif;
}

.callout {
  margin: 16px 0 0;
  padding: 18px 20px;
  border-left: 4px solid var(--accent);
  border-radius: 8px;
  background: var(--accent-soft);
  color: var(--text-secondary);
  font-size: 14px;
}

.two-column {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 16px;
}

.stack {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.progress-row+.progress-row {
  margin-top: 12px;
}

.progress-meta {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 6px;
  font-size: 13px;
  color: var(--text-secondary);
}

.progress-track {
  height: 10px;
  overflow: hidden;
  border-radius: 999px;
  background: #e2e8f0;
}

.progress-fill {
  height: 100%;
  border-radius: 999px;
}

.fill-a {
  width: 84%;
  background: linear-gradient(90deg, #2563eb, #60a5fa);
}

.fill-b {
  width: 76%;
  background: linear-gradient(90deg, #5b6a87, #8994ad);
}

.fill-c {
  width: 68%;
  background: linear-gradient(90deg, #f59e0b, #fbbf24);
}

.clip-box {
  position: relative;
  height: 90px;
  overflow: hidden;
  padding: 10px 14px;
  border: 1px dashed #94a3b8;
  border-radius: 8px;
  background: #f8fafc;
}

.spill {
  margin-top: 18px;
  padding: 24px;
  border-radius: 8px;
  background: #fde68a;
}

.division-box {
  min-height: 150px;
  padding: 18px;
  border: 1px solid var(--border-color);
  border-radius: 8px;
  background: linear-gradient(180deg, #ffffff, #f8fafc);
}

.rich-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 14px;
}

.definition-list {
  margin: 0;
  font-size: 13px;
}

.definition-list>div+div {
  margin-top: 12px;
}

.definition-list dt {
  font-weight: 700;
  color: #0f172a;
}

.definition-list dd {
  margin: 4px 0 0;
  color: var(--text-secondary);
}

.report-code {
  margin: 0;
  padding: 14px 16px;
  overflow: hidden;
  border-radius: 8px;
  background: #0f172a;
  color: #e2e8f0;
  white-space: pre-wrap;
  word-break: break-word;
  font-size: 12px;
}

.report-code code {
  padding: 0;
  background: transparent;
  color: inherit;
}

.doc ol {
  padding-left: 22px;
}

.doc ol li {
  margin: 3px 0;
  font-size: 13px;
}

.timeline-card-doc {
  border: 1px solid var(--border-color);
  border-radius: 8px;
  background: #f8fafc;
  padding: 18px 20px;
  margin-top: 16px;
}

.timeline {
  position: relative;
  margin-top: 12px;
  font-size: 13px;
}

.timeline::before {
  content: "";
  position: absolute;
  top: 8px;
  bottom: 8px;
  left: 5px;
  width: 2px;
  background: #cbd5e1;
}

.timeline-item {
  position: relative;
  display: flex;
  gap: 14px;
}

.timeline-item+.timeline-item {
  margin-top: 14px;
}

.timeline-dot {
  position: relative;
  z-index: 1;
  flex: none;
  width: 12px;
  height: 12px;
  margin-top: 6px;
  border: 2px solid var(--accent);
  border-radius: 999px;
  background: #ffffff;
}

.timeline-item p {
  margin: 4px 0 0;
  color: var(--text-secondary);
}

.math-block {
  margin-top: 28px;
  padding: 18px 22px;
  background: #f8fafc;
  border: 1px solid var(--border-color);
  border-radius: 8px;
}

.math-block h3 {
  margin: 0 0 12px;
  font-size: 16px;
}

.math-block p {
  margin: 6px 0;
  color: var(--text-secondary);
  line-height: 1.7;
  font-size: 13px;
}

.math-block .equation {
  margin: 6px 0 14px;
  padding: 10px 14px;
  background: #ffffff;
  border-left: 3px solid var(--accent);
  border-radius: 4px;
  font-family: "Cambria Math", "Latin Modern Math", "STIX Two Math", "Times New Roman", serif;
  font-size: 15px;
  color: var(--text-primary);
  line-height: 1.9;
}

.math-block .cases {
  display: inline-block;
  vertical-align: middle;
  border-left: 1px solid #94a3b8;
  padding-left: 8px;
  margin-left: 4px;
}

.math-block .cases span {
  display: block;
  line-height: 1.5;
}

/* Page break overlay */
body.dompdf-overlay #document * {
  outline: 1px solid rgba(37, 99, 235, 0.35);
}

.dompdf-pagebreak {
  position: absolute;
  left: 0;
  right: 0;
  height: 0;
  border-top: 1px dashed #ef4444;
  z-index: 5;
  pointer-events: none;
}

.dompdf-pagebreak::after {
  content: "page break";
  position: absolute;
  top: -14px;
  right: 0;
  padding: 0 4px;
  background: #ffffff;
  color: #ef4444;
  font-size: 10px;
}

/* ======================================================================
       Tab 2: Markdown 编辑器
       ====================================================================== */
.md-layout {
  display: flex;
  flex: 1;
  overflow: hidden;
}

.md-editor-panel {
  flex: 1;
  display: flex;
  flex-direction: column;
  border-right: 1px solid var(--border-color);
  background: #fafafa;
  overflow: hidden;
}

.md-preview-panel {
  flex: 1.1;
  display: flex;
  flex-direction: column;
  background: var(--content-bg);
  overflow: hidden;
}

.md-panel-header {
  height: 40px;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0 14px;
  background: var(--surface);
  flex-shrink: 0;
}

.md-panel-title {
  font-size: 12px;
  font-weight: 600;
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  gap: 6px;
}

.md-panel-title svg {
  width: 14px;
  height: 14px;
}

.md-panel-stats {
  display: flex;
  gap: 6px;
}

.md-stat-badge {
  font-size: 10px;
  color: var(--text-muted);
  background: #f1f5f9;
  padding: 2px 7px;
  border-radius: 4px;
  font-weight: 500;
}

.md-editor-body {
  flex: 1;
  overflow: hidden;
}

/* Vditor custom overrides */
.vditor {
  border: none !important;
  background-color: #fafafa !important;
}

.vditor-toolbar {
  border-bottom: 1px solid var(--border-color) !important;
  background-color: #ffffff !important;
  padding: 0 10px !important;
  height: 38px !important;
  display: flex !important;
  align-items: center !important;
}

.vditor-content,
.vditor-ir {
  background-color: #fafafa !important;
}

.vditor-reset {
  font-family: var(--font-mono) !important;
  font-size: 13px !important;
  line-height: 1.62 !important;
  padding: 20px 24px !important;
  background-color: #fafafa !important;
}

.vditor-counter {
  display: none !important;
}

.md-preview-stage {
  flex: 1;
  overflow: auto;
  padding: 32px 16px;
  display: flex;
  justify-content: center;
  align-items: flex-start;
  background-color: #f8fafc;
  background-image: radial-gradient(#cbd5e1 1.2px, transparent 0);
  background-size: 16px 16px;
}

.preview-sheet {
  position: relative;
  width: 794px;
  min-height: 1123px;
  background-color: #ffffff;
  box-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.05), 0 8px 10px -6px rgba(0, 0, 0, 0.05), 0 0 0 1px rgba(0, 0, 0, 0.02);
  border-radius: 8px;
  padding: 60px 68px;
  box-sizing: border-box;
}

/* Preview themes */
.preview-sheet[data-theme="paper"] {
  --doc-bg: #fffdf8;
  --doc-text: #182230;
  --doc-muted: #5c697e;
  --doc-line: rgba(148, 163, 184, 0.32);
  --doc-accent: #2a5bd7;
  --doc-code-bg: #f1f4f8;
  --doc-quote-bg: rgba(42, 91, 215, 0.08);
  background: var(--doc-bg);
  color: var(--doc-text);
}

.preview-sheet[data-theme="midnight"] {
  --doc-bg: #0f172a;
  --doc-text: #e8edf8;
  --doc-muted: #b4c0d6;
  --doc-line: rgba(148, 163, 184, 0.24);
  --doc-accent: #7aa2ff;
  --doc-code-bg: #162033;
  --doc-quote-bg: rgba(122, 162, 255, 0.12);
  background: var(--doc-bg);
  color: var(--doc-text);
}

.preview-sheet[data-theme="slate"] {
  --doc-bg: #f7fafc;
  --doc-text: #0f172a;
  --doc-muted: #516071;
  --doc-line: rgba(100, 116, 139, 0.24);
  --doc-accent: #0f766e;
  --doc-code-bg: #ecf5f4;
  --doc-quote-bg: rgba(15, 118, 110, 0.08);
  background: var(--doc-bg);
  color: var(--doc-text);
}

.preview-sheet[data-theme="sepia"] {
  --doc-bg: #fbf6ec;
  --doc-text: #2d2218;
  --doc-muted: #6d5c48;
  --doc-line: rgba(120, 98, 72, 0.24);
  --doc-accent: #9b5d2c;
  --doc-code-bg: #f4ede1;
  --doc-quote-bg: rgba(155, 93, 44, 0.08);
  background: var(--doc-bg);
  color: var(--doc-text);
}

/* Markdown rendered */
.markdown-body {
  position: relative;
  z-index: 1;
  color: inherit;
  font-size: 14.5px;
  line-height: 1.75;
}

.markdown-body>:first-child {
  margin-top: 0;
}

.markdown-body h1,
.markdown-body h2,
.markdown-body h3 {
  margin: 1.5em 0 0.55em;
  line-height: 1.3;
  font-weight: 700;
}

.markdown-body h1 {
  font-size: 2.1rem;
  letter-spacing: -0.03em;
  margin-top: 0;
}

.markdown-body h2 {
  padding-bottom: 0.38em;
  border-bottom: 1px solid var(--doc-line, #e2e8f0);
  font-size: 1.4rem;
}

.markdown-body h3 {
  font-size: 1.15rem;
}

.markdown-body p,
.markdown-body ul,
.markdown-body ol,
.markdown-body pre,
.markdown-body table,
.markdown-body blockquote {
  margin: 0.9em 0;
}

.markdown-body a {
  color: var(--doc-accent, var(--accent));
  text-decoration: none;
}

.markdown-body strong {
  font-weight: 700;
}

.markdown-body hr {
  border: 0;
  border-top: 1px solid var(--doc-line, #e2e8f0);
  margin: 1.5em 0;
}

.markdown-body ul,
.markdown-body ol {
  padding-left: 1.4em;
}

.markdown-body li+li {
  margin-top: 0.3em;
}

.markdown-body code {
  padding: 0.12em 0.36em;
  border-radius: 4px;
  background: var(--doc-code-bg, #f1f5f9);
  font-family: var(--font-mono);
  font-size: 0.9em;
}

.markdown-body pre {
  overflow: auto;
  padding: 12px 14px;
  border-radius: 6px;
  background: var(--doc-code-bg, #f1f5f9);
}

.markdown-body pre code {
  padding: 0;
  background: transparent;
}

.markdown-body blockquote {
  padding: 12px 16px;
  border-left: 4px solid var(--doc-accent, var(--accent));
  border-radius: 6px;
  background: var(--doc-quote-bg, rgba(59, 130, 246, 0.08));
  color: var(--doc-muted, var(--text-secondary));
}

.markdown-body table {
  width: 100%;
  border-collapse: collapse;
  border: 1px solid var(--doc-line, #e2e8f0);
  border-radius: 8px;
}

.markdown-body th,
.markdown-body td {
  padding: 10px 12px;
  border-bottom: 1px solid var(--doc-line, #e2e8f0);
  text-align: left;
}

.markdown-body thead th {
  font-size: 11px;
  color: var(--doc-muted, var(--text-muted));
  background: rgba(148, 163, 184, 0.08);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.markdown-body img {
  max-width: 100%;
  border-radius: 6px;
}

.md-empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  position: absolute;
  inset: 0;
  padding: 40px;
  color: var(--text-muted);
  text-align: center;
  pointer-events: none;
}

.preview-sheet.is-empty .md-empty-state {
  display: flex;
}

.preview-sheet:not(.is-empty) .md-empty-state {
  display: none;
}

.preview-sheet.is-empty .markdown-body {
  display: none;
}

/* Watermark layers */
.watermark-layer {
  position: absolute;
  inset: 0;
  overflow: hidden;
  pointer-events: none;
  z-index: 0;
  border-radius: 8px;
}

.watermark-layer[data-layer="over"] {
  z-index: 3;
}

.watermark-stamp {
  position: absolute;
  left: 0;
  top: 0;
  white-space: nowrap;
  transform-origin: left top;
  user-select: none;
}

/* Responsive */
@media (max-width: 1000px) {

  .report-hero,
  .report-grid-2,
  .report-image-card,
  .report-kpi-grid,
  .report-mini-grid {
    grid-template-columns: 1fr;
  }

  .hero,
  .summary-grid,
  .two-column {
    grid-template-columns: 1fr;
  }

  .metric-grid-doc,
  .feature-grid,
  .rich-grid {
    grid-template-columns: 1fr;
  }

  .card-img {
    grid-template-columns: 1fr;
  }
}

@keyframes spin {
  100% {
    transform: rotate(360deg);
  }
}