/* ═══════════════════════════════════════════════════════════════
   建材产品 WIKI — Design System v2.0
   基于《建材产品WIKI完整界面方案与信息架构规范 v1.0》
   ═══════════════════════════════════════════════════════════════ */

/* ── §1 CSS Variables ── */
:root {
  /* Primary Palette */
  --carbon-slate: #1E2A38;
  --structural-blue: #2C5F8A;
  --eco-verde: #3A8C6E;

  /* Secondary Palette */
  --warm-stone: #F5F0EB;
  --concrete: #E8E4DF;
  --steel: #6B7B8D;
  --pure-white: #FFFFFF;

  /* Functional Colors */
  --alert-red: #D94040;
  --caution-yellow: #E6A817;
  --info-blue: #3B82C4;
  --success-green: #2D9D6A;
  --premium-purple: #7C5CBF;

  /* Spacing (8px base) */
  --space-xs: 4px;
  --space-sm: 8px;
  --space-md: 16px;
  --space-lg: 24px;
  --space-xl: 32px;
  --space-2xl: 48px;
  --space-3xl: 64px;
  --space-4xl: 96px;

  /* Radius */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;

  /* Shadows */
  --shadow-sm: 0 1px 3px rgba(30,42,56, 0.08);
  --shadow-md: 0 4px 12px rgba(30,42,56, 0.12);
  --shadow-lg: 0 8px 32px rgba(30,42,56, 0.16);
  --shadow-xl: 0 16px 48px rgba(30,42,56, 0.20);

  /* Typography */
  --font-heading: "Noto Serif SC", "Source Han Serif CN", "STSong", Georgia, serif;
  --font-body: "Noto Sans SC", "Source Han Sans CN", "PingFang SC", "Microsoft YaHei", sans-serif;
  --font-mono: "JetBrains Mono", "Fira Code", "Source Code Pro", monospace;

  /* Content width */
  --content-max: 1440px;
  --text-max: 680px;
}

/* ── §2 Global Overrides ── */

.md-header {
  background: var(--carbon-slate) !important;
}

.md-header__title {
  font-family: var(--font-heading) !important;
  font-size: 1.1rem !important;
  letter-spacing: 0.5px;
}

/* Navigation tabs */
.md-tabs {
  background: linear-gradient(135deg, #243447 0%, #1E2A38 100%) !important;
  border-bottom: 2px solid rgba(44,95,138,0.3);
}

.md-tabs__link {
  font-family: var(--font-body) !important;
  font-size: 0.85rem !important;
  font-weight: 500 !important;
  color: rgba(255,255,255,0.7) !important;
  letter-spacing: 0.3px;
  padding: 12px 16px !important;
  transition: all 0.2s ease;
}

.md-tabs__link:hover {
  color: #fff !important;
  background: rgba(44,95,138,0.2);
}

.md-tabs__link--active {
  color: #fff !important;
  border-bottom: 2px solid var(--structural-blue);
}

/* Sidebar */
.md-sidebar--primary {
  border-right: 1px solid var(--concrete);
}

.md-nav__link {
  font-size: 0.85rem !important;
  color: var(--carbon-slate) !important;
  transition: color 0.15s, padding-left 0.2s;
}

.md-nav__link:hover {
  color: var(--structural-blue) !important;
  padding-left: 4px;
}

.md-nav__link--active {
  color: var(--structural-blue) !important;
  font-weight: 600 !important;
  border-left: 3px solid var(--structural-blue);
  padding-left: 12px;
}

/* Content area */
.md-content {
  background: var(--warm-stone);
}

.md-content__inner {
  max-width: var(--content-max);
  padding: var(--space-xl) var(--space-2xl);
}

/* Article typography */
.md-typeset {
  font-family: var(--font-body) !important;
  color: var(--carbon-slate);
  line-height: 1.7;
}

.md-typeset h1 {
  font-family: var(--font-heading) !important;
  font-size: 2.5rem !important;
  font-weight: 700 !important;
  line-height: 1.2 !important;
  color: var(--carbon-slate) !important;
  margin-bottom: var(--space-lg) !important;
  padding-bottom: var(--space-md);
  border-bottom: 3px solid var(--structural-blue);
}

.md-typeset h2 {
  font-family: var(--font-heading) !important;
  font-size: 1.75rem !important;
  font-weight: 600 !important;
  line-height: 1.3 !important;
  color: var(--carbon-slate) !important;
  margin-top: var(--space-2xl) !important;
  padding-bottom: var(--space-sm);
  border-bottom: 1px solid var(--concrete);
}

.md-typeset h3 {
  font-family: var(--font-heading) !important;
  font-size: 1.375rem !important;
  font-weight: 600 !important;
  color: #2D3E50 !important;
  margin-top: var(--space-xl) !important;
}

.md-typeset h4 {
  font-size: 1.125rem !important;
  font-weight: 600 !important;
  color: var(--steel) !important;
}

.md-typeset p {
  margin-bottom: 1em;
  max-width: var(--text-max);
}

/* Tables — Swiss Style */
.md-typeset table {
  border-collapse: separate;
  border-spacing: 0;
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  margin: var(--space-lg) 0;
  font-size: 0.875rem;
}

.md-typeset table thead {
  background: var(--carbon-slate) !important;
}

.md-typeset table thead th {
  color: #fff !important;
  font-weight: 600 !important;
  font-size: 0.8rem !important;
  letter-spacing: 0.5px;
  text-transform: uppercase;
  padding: 12px 16px !important;
  border: none !important;
}

.md-typeset table tbody tr:nth-child(even) {
  background: var(--warm-stone) !important;
}

.md-typeset table tbody tr:hover {
  background: rgba(44,95,138,0.06) !important;
}

.md-typeset table td {
  padding: 10px 16px !important;
  border-bottom: 1px solid var(--concrete) !important;
  vertical-align: top;
}

/* Links */
.md-typeset a {
  color: var(--structural-blue) !important;
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color 0.15s;
}

.md-typeset a:hover {
  border-bottom-color: var(--structural-blue);
}

/* Blockquotes — data source citation style */
.md-typeset blockquote {
  border-left: 3px solid var(--structural-blue) !important;
  background: rgba(44,95,138,0.04) !important;
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  padding: var(--space-md) var(--space-lg);
  font-size: 0.9rem;
  color: var(--steel);
}

/* Admonitions */
.md-typeset .admonition {
  border-radius: var(--radius-md) !important;
  border-left-width: 4px !important;
  box-shadow: var(--shadow-sm);
}

/* Code */
.md-typeset code {
  font-family: var(--font-mono) !important;
  font-size: 0.85em;
  background: rgba(44,95,138,0.08) !important;
  color: var(--carbon-slate) !important;
  border-radius: var(--radius-sm);
  padding: 2px 6px;
}

/* TOC sidebar */
.md-sidebar--toc {
  border-left: 1px solid var(--concrete);
}

.md-sidebar--toc .md-nav__link {
  font-size: 0.8rem !important;
  color: var(--steel) !important;
}

.md-sidebar--toc .md-nav__link--active {
  color: var(--structural-blue) !important;
  font-weight: 600 !important;
}

/* ── §3 Hero Section ── */

.hero-section {
  background: linear-gradient(135deg, var(--carbon-slate) 0%, #243447 40%, var(--structural-blue) 100%);
  border-radius: var(--radius-xl);
  padding: var(--space-4xl) var(--space-2xl);
  margin-bottom: var(--space-3xl);
  position: relative;
  overflow: hidden;
  color: #fff;
}

.hero-section::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(58,140,110,0.15) 0%, transparent 70%);
  pointer-events: none;
}

.hero-section::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--structural-blue), var(--eco-verde), var(--premium-purple));
}

.hero-section h1 {
  font-family: var(--font-heading) !important;
  font-size: 2.8rem !important;
  color: #fff !important;
  border: none !important;
  margin-bottom: var(--space-md) !important;
  padding-bottom: 0 !important;
  position: relative;
  z-index: 1;
}

.hero-section > p {
  font-size: 1.15rem;
  color: rgba(255,255,255,0.8);
  max-width: 600px;
  line-height: 1.6;
  position: relative;
  z-index: 1;
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-lg);
  margin-top: var(--space-2xl);
  position: relative;
  z-index: 1;
}

.hero-stat {
  text-align: center;
  padding: var(--space-lg);
  background: rgba(255,255,255,0.08);
  border-radius: var(--radius-lg);
  border: 1px solid rgba(255,255,255,0.12);
  backdrop-filter: blur(8px);
  transition: transform 0.25s, background 0.25s;
}

.hero-stat:hover {
  transform: translateY(-2px);
  background: rgba(255,255,255,0.14);
}

.hero-stat .num {
  display: block;
  font-family: var(--font-mono);
  font-size: 2.5rem;
  font-weight: 700;
  color: #fff;
  line-height: 1.1;
}

.hero-stat .label {
  display: block;
  font-size: 0.85rem;
  color: rgba(255,255,255,0.7);
  margin-top: var(--space-sm);
  letter-spacing: 0.5px;
}

/* ── §4 Section Headers ── */

.section-header {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  margin: var(--space-3xl) 0 var(--space-xl);
  padding-bottom: var(--space-sm);
  border-bottom: 2px solid var(--concrete);
}

.section-header .material-icons {
  color: var(--structural-blue);
  font-size: 28px;
}

.section-header h2 {
  font-family: var(--font-heading) !important;
  font-size: 1.75rem !important;
  color: var(--carbon-slate) !important;
  margin: 0 !important;
  padding: 0 !important;
  border: none !important;
}

/* Category subtitle */
.category-label {
  font-family: var(--font-heading);
  font-size: 1.2rem;
  font-weight: 600;
  color: var(--steel);
  margin: var(--space-xl) 0 var(--space-md);
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.category-label::before {
  content: '';
  width: 4px;
  height: 20px;
  background: var(--structural-blue);
  border-radius: 2px;
}

/* ── §5 Card Grid System ── */

.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: var(--space-lg);
  margin: var(--space-lg) 0;
}

.card-grid-small {
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
}

/* Base card */
.wiki-card {
  display: flex;
  flex-direction: column;
  background: var(--pure-white);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  text-decoration: none !important;
  border: 1px solid var(--concrete);
  box-shadow: var(--shadow-sm);
  transition: transform 0.25s cubic-bezier(0.4,0,0.2,1),
              box-shadow 0.25s cubic-bezier(0.4,0,0.2,1),
              border-color 0.2s;
  position: relative;
  overflow: hidden;
}

.wiki-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  text-decoration: none !important;
  border-bottom-color: transparent;
}

.wiki-card h3 {
  font-family: var(--font-heading) !important;
  font-size: 1.15rem !important;
  font-weight: 600 !important;
  color: var(--carbon-slate) !important;
  margin: var(--space-sm) 0 !important;
  line-height: 1.3 !important;
}

.wiki-card p {
  font-size: 0.875rem;
  color: var(--steel);
  line-height: 1.6;
  margin-bottom: var(--space-md) !important;
  flex: 1;
}

.wiki-card .card-icon {
  font-size: 2rem;
  margin-bottom: var(--space-xs);
  display: block;
}

/* Entity cards — blue accent */
.card-entity {
  border-top: 3px solid var(--structural-blue);
}

.card-entity:hover {
  border-color: var(--structural-blue);
}

/* Product cards — green accent */
.card-product {
  border-top: 3px solid var(--eco-verde);
}

.card-product:hover {
  border-color: var(--eco-verde);
}

/* Standard cards — orange accent */
.card-standard {
  border-top: 3px solid var(--caution-yellow);
}

.card-standard:hover {
  border-color: var(--caution-yellow);
}

/* Tags inside cards */
.card-tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
  margin-top: auto;
  padding-top: var(--space-md);
  border-top: 1px solid var(--concrete);
}

.card-tag {
  display: inline-block;
  font-size: 0.7rem;
  font-weight: 500;
  color: var(--structural-blue);
  background: rgba(44,95,138,0.08);
  padding: 3px 10px;
  border-radius: 20px;
  letter-spacing: 0.3px;
}

/* Company badge inside product cards */
.company-badge {
  display: inline-flex;
  align-items: center;
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--eco-verde);
  background: rgba(58,140,110,0.08);
  padding: 4px 12px;
  border-radius: 20px;
  margin-top: auto;
  padding-top: var(--space-md);
  border-top: 1px solid var(--concrete);
  letter-spacing: 0.3px;
}

.company-badge::before {
  content: '🏭';
  margin-right: 4px;
  font-size: 0.8rem;
}

/* ── §6 Product Detail Hero ── */

.product-hero {
  background: var(--pure-white);
  border-radius: var(--radius-lg);
  padding: var(--space-2xl);
  margin-bottom: var(--space-2xl);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--concrete);
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-xl);
}

.product-hero-header {
  display: flex;
  align-items: flex-start;
  gap: var(--space-xl);
}

.product-hero-icon {
  font-size: 4rem;
  flex-shrink: 0;
  width: 80px;
  height: 80px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, rgba(44,95,138,0.08), rgba(58,140,110,0.08));
  border-radius: var(--radius-lg);
}

.product-hero-info h1 {
  font-family: var(--font-heading) !important;
  font-size: 2rem !important;
  color: var(--carbon-slate) !important;
  margin-bottom: var(--space-sm) !important;
  border: none !important;
  padding-bottom: 0 !important;
}

.product-hero-subtitle {
  font-size: 1rem;
  color: var(--steel);
  margin-bottom: var(--space-md);
}

.product-hero-company {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  font-size: 0.85rem;
  color: var(--structural-blue);
  text-decoration: none !important;
  background: rgba(44,95,138,0.06);
  padding: 4px 14px;
  border-radius: 20px;
  transition: background 0.2s;
}

.product-hero-company:hover {
  background: rgba(44,95,138,0.12);
}

/* Feature badges */
.feature-badges {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
  margin-top: var(--space-md);
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 0.75rem;
  font-weight: 600;
  padding: 5px 14px;
  border-radius: 20px;
  letter-spacing: 0.3px;
}

.badge-fire { color: var(--alert-red); background: rgba(217,64,64,0.08); border: 1px solid rgba(217,64,64,0.2); }
.badge-green { color: var(--eco-verde); background: rgba(58,140,110,0.08); border: 1px solid rgba(58,140,110,0.2); }
.badge-durability { color: var(--structural-blue); background: rgba(44,95,138,0.08); border: 1px solid rgba(44,95,138,0.2); }
.badge-premium { color: var(--premium-purple); background: rgba(124,92,191,0.08); border: 1px solid rgba(124,92,191,0.2); }

/* ── §7 Key Metrics Dashboard ── */

.metrics-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: var(--space-md);
  margin: var(--space-xl) 0;
}

.metric-card {
  background: var(--pure-white);
  border-radius: var(--radius-md);
  padding: var(--space-lg);
  text-align: center;
  border: 1px solid var(--concrete);
  box-shadow: var(--shadow-sm);
  transition: transform 0.2s, box-shadow 0.2s;
}

.metric-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.metric-card .metric-icon {
  font-size: 1.5rem;
  margin-bottom: var(--space-sm);
}

.metric-card .metric-label {
  font-size: 0.72rem;
  font-weight: 500;
  color: var(--steel);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: var(--space-xs);
}

.metric-card .metric-value {
  font-family: var(--font-mono);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--carbon-slate);
  line-height: 1.2;
}

.metric-card .metric-unit {
  font-size: 0.72rem;
  color: var(--steel);
  margin-top: 2px;
}

.metric-card .metric-compare {
  font-size: 0.68rem;
  color: var(--success-green);
  margin-top: var(--space-xs);
  font-weight: 500;
}

/* ── §8 Spec Table (Wiki-style) ── */

.spec-table-wrapper {
  background: var(--pure-white);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  margin: var(--space-lg) 0;
  border: 1px solid var(--concrete);
}

.spec-group-title {
  font-family: var(--font-heading);
  font-size: 1rem;
  font-weight: 600;
  color: var(--carbon-slate);
  padding: var(--space-md) var(--space-lg);
  background: rgba(44,95,138,0.04);
  border-bottom: 2px solid var(--structural-blue);
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.spec-group-title::before {
  content: '▼';
  font-size: 0.6rem;
  color: var(--structural-blue);
}

/* Verdict badges in tables */
.verdict-pass { color: var(--success-green); font-weight: 600; }
.verdict-excellent { color: var(--eco-verde); font-weight: 700; }
.verdict-fail { color: var(--alert-red); font-weight: 600; }
.verdict-warn { color: var(--caution-yellow); font-weight: 600; }

/* ── §9 Company Profile Page ── */

.company-hero {
  background: linear-gradient(135deg, var(--carbon-slate) 0%, #243447 50%, var(--structural-blue) 100%);
  border-radius: var(--radius-xl);
  padding: var(--space-3xl) var(--space-2xl);
  margin-bottom: var(--space-2xl);
  color: #fff;
  position: relative;
  overflow: hidden;
}

.company-hero::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--structural-blue), var(--eco-verde));
}

.company-hero h1 {
  font-family: var(--font-heading) !important;
  font-size: 2.2rem !important;
  color: #fff !important;
  border: none !important;
  padding-bottom: 0 !important;
  margin-bottom: var(--space-sm) !important;
}

.company-hero .company-tagline {
  font-size: 1.05rem;
  color: rgba(255,255,255,0.75);
  margin-bottom: var(--space-lg);
}

.company-hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-md) var(--space-xl);
  font-size: 0.85rem;
  color: rgba(255,255,255,0.8);
}

.company-hero-meta span {
  display: flex;
  align-items: center;
  gap: 4px;
}

/* Company KPI strip */
.company-kpi {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
  gap: var(--space-md);
  margin: var(--space-xl) 0;
}

.kpi-item {
  background: var(--pure-white);
  border-radius: var(--radius-md);
  padding: var(--space-lg) var(--space-md);
  text-align: center;
  border: 1px solid var(--concrete);
  box-shadow: var(--shadow-sm);
}

.kpi-item .kpi-num {
  font-family: var(--font-mono);
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--structural-blue);
  line-height: 1.1;
}

.kpi-item .kpi-label {
  font-size: 0.75rem;
  color: var(--steel);
  margin-top: var(--space-xs);
}

/* Wiki-style infobox */
.infobox {
  float: right;
  width: 300px;
  background: var(--pure-white);
  border: 1px solid var(--concrete);
  border-radius: var(--radius-md);
  margin: 0 0 var(--space-lg) var(--space-xl);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
}

.infobox-title {
  background: var(--carbon-slate);
  color: #fff;
  font-family: var(--font-heading);
  font-size: 0.9rem;
  font-weight: 600;
  padding: var(--space-md) var(--space-lg);
  text-align: center;
}

.infobox-row {
  display: flex;
  border-bottom: 1px solid var(--concrete);
  font-size: 0.82rem;
}

.infobox-row:last-child {
  border-bottom: none;
}

.infobox-label {
  width: 100px;
  flex-shrink: 0;
  padding: var(--space-sm) var(--space-md);
  background: rgba(44,95,138,0.04);
  font-weight: 600;
  color: var(--carbon-slate);
}

.infobox-value {
  flex: 1;
  padding: var(--space-sm) var(--space-md);
  color: #444;
}

/* Timeline */
.timeline {
  position: relative;
  padding-left: var(--space-2xl);
  margin: var(--space-xl) 0;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 8px;
  top: 0;
  bottom: 0;
  width: 2px;
  background: var(--structural-blue);
  border-radius: 1px;
}

.timeline-item {
  position: relative;
  margin-bottom: var(--space-xl);
  padding: var(--space-md) var(--space-lg);
  background: var(--pure-white);
  border-radius: var(--radius-md);
  border: 1px solid var(--concrete);
  box-shadow: var(--shadow-sm);
}

.timeline-item::before {
  content: '';
  position: absolute;
  left: calc(-1 * var(--space-2xl) + 2px);
  top: 18px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--structural-blue);
  border: 2px solid var(--pure-white);
  box-shadow: 0 0 0 2px var(--structural-blue);
}

.timeline-year {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--structural-blue);
  margin-bottom: var(--space-xs);
}

.timeline-content {
  font-size: 0.9rem;
  color: var(--carbon-slate);
  line-height: 1.6;
}

/* ── §10 Comparison Table ── */

.compare-table {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  margin: var(--space-lg) 0;
  font-size: 0.85rem;
}

.compare-table thead {
  background: var(--carbon-slate);
}

.compare-table thead th {
  color: #fff !important;
  padding: 12px 16px;
  font-weight: 600;
  text-align: center;
  border: none;
}

.compare-table thead th:first-child {
  text-align: left;
  background: #1a2432;
}

.compare-table td {
  padding: 10px 16px;
  border-bottom: 1px solid var(--concrete);
  text-align: center;
}

.compare-table td:first-child {
  text-align: left;
  font-weight: 600;
  color: var(--carbon-slate);
  background: rgba(44,95,138,0.03);
  position: sticky;
  left: 0;
}

.compare-table tr:hover td {
  background: rgba(44,95,138,0.04);
}

.compare-table .col-highlight {
  background: rgba(44,95,138,0.06) !important;
}

.compare-table .best-value {
  color: var(--success-green);
  font-weight: 700;
}

/* ── §11 References & Document Download ── */

.doc-list {
  list-style: none;
  padding: 0;
  margin: var(--space-lg) 0;
}

.doc-item {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  padding: var(--space-md) var(--space-lg);
  background: var(--pure-white);
  border: 1px solid var(--concrete);
  border-radius: var(--radius-md);
  margin-bottom: var(--space-sm);
  transition: border-color 0.2s, box-shadow 0.2s;
}

.doc-item:hover {
  border-color: var(--structural-blue);
  box-shadow: var(--shadow-sm);
}

.doc-item .doc-icon {
  font-size: 1.5rem;
  flex-shrink: 0;
}

.doc-item .doc-info {
  flex: 1;
}

.doc-item .doc-name {
  font-weight: 600;
  color: var(--carbon-slate);
  font-size: 0.9rem;
}

.doc-item .doc-meta {
  font-size: 0.75rem;
  color: var(--steel);
}

/* References */
.md-typeset .references {
  padding: var(--space-md) var(--space-lg);
  background: var(--pure-white);
  border-radius: var(--radius-md);
  border: 1px solid var(--concrete);
  margin: var(--space-xl) 0;
}

.md-typeset .references ol {
  font-size: 0.85rem;
  color: var(--steel);
  padding-left: var(--space-xl);
}

.md-typeset .references li {
  margin-bottom: var(--space-sm);
}

/* ── §12 Footer ── */

.wiki-footer {
  background: var(--carbon-slate);
  color: rgba(255,255,255,0.7);
  padding: var(--space-2xl) var(--space-xl);
  margin-top: var(--space-4xl);
  border-radius: var(--radius-xl) var(--radius-xl) 0 0;
}

.wiki-footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: var(--space-2xl);
  max-width: var(--content-max);
  margin: 0 auto;
}

.wiki-footer h4 {
  font-family: var(--font-heading);
  color: #fff;
  font-size: 0.9rem;
  margin-bottom: var(--space-md);
}

.wiki-footer a {
  color: rgba(255,255,255,0.6) !important;
  font-size: 0.82rem;
  display: block;
  margin-bottom: var(--space-sm);
  transition: color 0.15s;
  text-decoration: none !important;
}

.wiki-footer a:hover {
  color: #fff !important;
}

.wiki-footer-bottom {
  text-align: center;
  padding-top: var(--space-xl);
  margin-top: var(--space-xl);
  border-top: 1px solid rgba(255,255,255,0.1);
  font-size: 0.75rem;
  color: rgba(255,255,255,0.4);
}

/* ── §13 Breadcrumb Enhancement ── */

.md-typeset .breadcrumbs {
  font-size: 0.8rem;
  color: var(--steel);
  margin-bottom: var(--space-lg);
}

.md-typeset .breadcrumbs a {
  color: var(--structural-blue) !important;
}

.md-typeset .breadcrumbs .separator {
  margin: 0 var(--space-sm);
  color: var(--concrete);
}

/* ── §14 Responsive Design ── */

/* 2xl: 1440px+ — max-width container */
@media (min-width: 1440px) {
  .md-content__inner {
    max-width: 1440px;
    margin: 0 auto;
  }
}

/* xl: 1280px */
@media (max-width: 1280px) {
  .card-grid {
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  }
}

/* lg: 1024px */
@media (max-width: 1024px) {
  .infobox {
    float: none;
    width: 100%;
    margin: var(--space-lg) 0;
  }

  .product-hero-header {
    flex-direction: column;
  }

  .wiki-footer-grid {
    grid-template-columns: 1fr;
    gap: var(--space-xl);
  }
}

/* md: 768px — tablet */
@media (max-width: 768px) {
  .hero-section {
    padding: var(--space-2xl) var(--space-lg);
  }

  .hero-section h1 {
    font-size: 1.8rem !important;
  }

  .hero-stats {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-md);
  }

  .hero-stat .num {
    font-size: 1.8rem;
  }

  .card-grid {
    grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
    gap: var(--space-md);
  }

  .md-typeset h1 {
    font-size: 1.75rem !important;
  }

  .md-typeset h2 {
    font-size: 1.375rem !important;
  }

  .metrics-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .company-kpi {
    grid-template-columns: repeat(2, 1fr);
  }

  .company-hero {
    padding: var(--space-2xl) var(--space-lg);
  }

  .company-hero h1 {
    font-size: 1.6rem !important;
  }

  .md-content__inner {
    padding: var(--space-lg) var(--space-md);
  }

  .compare-table {
    display: block;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
  }

  .md-sidebar--toc {
    display: none;
  }
}

/* sm: 480px — phone */
@media (max-width: 480px) {
  .hero-section {
    padding: var(--space-xl) var(--space-md);
    border-radius: var(--radius-lg);
  }

  .hero-section h1 {
    font-size: 1.4rem !important;
  }

  .hero-stats {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-sm);
  }

  .hero-stat {
    padding: var(--space-md);
  }

  .hero-stat .num {
    font-size: 1.5rem;
  }

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

  .md-typeset h1 {
    font-size: 1.4rem !important;
  }

  .md-typeset h2 {
    font-size: 1.2rem !important;
  }

  .metrics-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-sm);
  }

  .metric-card {
    padding: var(--space-md);
  }

  .metric-card .metric-value {
    font-size: 1.2rem;
  }

  .md-typeset table {
    font-size: 0.78rem;
  }

  .md-typeset table td,
  .md-typeset table th {
    padding: 8px 10px !important;
  }

  .company-hero {
    padding: var(--space-xl) var(--space-md);
  }

  .company-hero h1 {
    font-size: 1.3rem !important;
  }

  .feature-badges {
    gap: 4px;
  }

  .badge {
    font-size: 0.68rem;
    padding: 4px 10px;
  }

  .product-hero {
    padding: var(--space-lg);
  }
}

/* xs: 374px */
@media (max-width: 374px) {
  .hero-section h1 {
    font-size: 1.2rem !important;
  }

  .hero-stat .num {
    font-size: 1.3rem;
  }

  .hero-stat .label {
    font-size: 0.72rem;
  }

  .card-grid {
    gap: var(--space-sm);
  }

  .wiki-card {
    padding: var(--space-md);
  }

  .wiki-card h3 {
    font-size: 1rem !important;
  }
}

/* Touch devices */
@media (hover: none) {
  .wiki-card:hover {
    transform: none;
  }

  .metric-card:hover {
    transform: none;
  }

  .hero-stat:hover {
    transform: none;
  }

  .md-tabs__link,
  .wiki-card,
  .md-nav__link {
    min-height: 44px;
    display: flex;
    align-items: center;
  }

  input, textarea, select {
    font-size: 16px;
  }
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
  * {
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
  }
}

/* ── §15 Dark Mode Adjustments ── */

[data-md-color-scheme="slate"] {
  --warm-stone: #1a1f25;
  --concrete: #2d333b;
  --pure-white: #22272e;
  --carbon-slate: #e6edf3;
  --steel: #8b949e;
}

[data-md-color-scheme="slate"] .hero-section {
  background: linear-gradient(135deg, #0d1117 0%, #161b22 40%, #1a3a5c 100%);
}

[data-md-color-scheme="slate"] .company-hero {
  background: linear-gradient(135deg, #0d1117 0%, #161b22 50%, #1a3a5c 100%);
}

[data-md-color-scheme="slate"] .md-typeset table thead {
  background: #161b22 !important;
}

[data-md-color-scheme="slate"] .card-entity { border-top-color: #3b82c4; }
[data-md-color-scheme="slate"] .card-product { border-top-color: #3fb88a; }
[data-md-color-scheme="slate"] .card-standard { border-top-color: #e6a817; }

/* ── §16 Print Styles ── */

@media print {
  .md-header, .md-tabs, .md-sidebar, .md-footer, .hero-section {
    display: none !important;
  }

  .md-content__inner {
    padding: 0;
    max-width: 100%;
  }

  .wiki-card {
    break-inside: avoid;
    box-shadow: none;
    border: 1px solid #ccc;
  }
}