/* ============================================
   AI 提效中心 — 二级页面样式 v2
   "咨询公司能力橱窗" 设计语言
   ============================================ */

body.guide-page {
  background: var(--paper);
}

/* ============================================
   Navigation
   ============================================ */
.guide-nav {
  position: sticky;
  top: 0;
  z-index: 50;
  border-bottom: 1px solid rgba(24, 21, 18, 0.08);
  background: rgba(244, 241, 235, 0.9);
  backdrop-filter: blur(14px);
}
.guide-nav-inner {
  width: min(1160px, calc(100% - 40px));
  min-height: 68px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}
.guide-brandline {
  min-width: 0;
  display: flex;
  align-items: center;
  gap: 12px;
}
.brand-trail {
  min-width: 0;
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--quiet);
  font-family: var(--mono);
  font-size: 11px;
  white-space: nowrap;
}
.brand-trail a,
.brand-trail span {
  color: inherit;
  text-decoration: none;
}
.brand-trail a:hover {
  color: var(--coral);
}
.guide-nav-actions {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}
.guide-nav-actions a {
  color: var(--muted);
  font-size: 13px;
  font-weight: 700;
  text-decoration: none;
}
.guide-nav-actions .guide-nav-primary {
  min-height: 38px;
  display: inline-flex;
  align-items: center;
  padding: 0 14px;
  border-radius: 999px;
  background: var(--ink);
  color: #fff;
}

/* ============================================
   Hero
   ============================================ */
.guide-hero {
  width: min(1160px, calc(100% - 40px));
  margin: 0 auto;
  padding: 64px 0 42px;
}
.guide-kicker {
  display: inline-flex;
  align-items: center;
  min-height: 30px;
  padding: 0 12px;
  border: 1px solid rgba(24, 21, 18, 0.12);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.72);
  color: var(--muted);
  font-family: var(--mono);
  font-size: 11px;
}
.guide-hero h1 {
  max-width: 1040px;
  margin: 24px 0 18px;
  font-size: clamp(42px, 7vw, 76px);
  line-height: 1.04;
  letter-spacing: -2px;
}
.guide-hero p {
  max-width: 820px;
  margin: 0;
  color: var(--muted);
  font-size: 18px;
  line-height: 1.85;
}
.guide-meta {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-top: 28px;
}
.guide-meta span {
  display: inline-flex;
  align-items: center;
  min-height: 30px;
  padding: 0 10px;
  border-radius: 999px;
  background: rgba(37, 78, 118, 0.08);
  color: var(--blue);
  font-size: 12px;
  font-weight: 800;
}
.guide-meta span:nth-child(2n) {
  background: rgba(39, 111, 91, 0.09);
  color: var(--green);
}
.guide-meta span:nth-child(3n) {
  background: rgba(201, 98, 77, 0.10);
  color: var(--coral);
}
.guide-meta span:nth-child(4n) {
  background: rgba(138, 107, 34, 0.10);
  color: #7a5d1d;
}

/* Compact hero (index page) */
.guide-hero--compact {
  padding: 40px 0 32px;
  text-align: center;
}
.guide-hero--compact h1 {
  font-size: clamp(32px, 5vw, 52px);
  letter-spacing: -1px;
  margin: 16px 0 14px;
}
.guide-hero--compact p {
  max-width: 680px;
  margin: 0 auto;
  font-size: 15px;
}
.guide-hero--compact .guide-meta {
  justify-content: center;
}

/* Methodology hero (content pages) — adds gradient background */
.guide-hero--methodology {
  padding: 36px 0 38px;
  background: linear-gradient(180deg, rgba(201,98,77,0.04) 0%, rgba(244,241,235,0) 100%);
  border-bottom: 1px solid rgba(201, 98, 77, 0.10);
  margin-bottom: 24px;
  width: 100%;
  max-width: none;
}
.guide-hero--methodology .guide-hero-inner {
  width: min(1160px, calc(100% - 40px));
  margin: 0 auto;
}
.guide-hero--methodology h1 {
  font-size: clamp(40px, 6vw, 68px);
  margin: 0 0 18px;
}

/* ============================================
   "一页看懂" Abstract — 3 col summary at top
   ============================================ */
.guide-abstract {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
  margin-bottom: 42px;
  scroll-margin-top: 100px;
}
.guide-abstract-card {
  padding: 28px 24px;
  border-radius: 10px;
  border: 1px solid rgba(24, 21, 18, 0.10);
  background: rgba(255, 255, 255, 0.78);
  box-shadow: 0 12px 32px rgba(24, 21, 18, 0.04);
}
.guide-abstract-card h4 {
  display: flex;
  align-items: center;
  gap: 8px;
  margin: 0 0 12px;
  font-size: 12px;
  font-family: var(--mono);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .06em;
}
.guide-abstract-card h4::before {
  content: "";
  width: 8px;
  height: 8px;
}
.guide-abstract-card p {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.8;
}
/* Color coding */
.guide-abstract-card--insight {
  border-top: 3px solid var(--coral);
}
.guide-abstract-card--insight h4 { color: var(--coral); }
.guide-abstract-card--insight h4::before { background: var(--coral); }

.guide-abstract-card--audience {
  border-top: 3px solid var(--blue);
}
.guide-abstract-card--audience h4 { color: var(--blue); }
.guide-abstract-card--audience h4::before { background: var(--blue); }

.guide-abstract-card--delivery {
  border-top: 3px solid var(--green);
}
.guide-abstract-card--delivery h4 { color: var(--green); }
.guide-abstract-card--delivery h4::before { background: var(--green); }

/* ============================================
   Process Flow Diagram (CSS-only horizontal)
   ============================================ */
.guide-flow {
  display: flex;
  align-items: flex-start;
  gap: 0;
  margin-bottom: 42px;
  padding: 36px 20px;
  background: rgba(255, 255, 255, 0.6);
  border: 1px solid rgba(24, 21, 18, 0.08);
  border-radius: 12px;
  overflow-x: auto;
}
.guide-flow-step {
  flex: 1;
  min-width: 140px;
  text-align: center;
  position: relative;
  padding: 0 12px;
}
.guide-flow-step::after {
  content: "→";
  position: absolute;
  right: -8px;
  top: 28px;
  font-size: 20px;
  color: var(--line-strong);
  font-family: var(--mono);
}
.guide-flow-step:last-child::after {
  content: none;
}
.guide-flow-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  margin: 0 auto 14px;
  border-radius: 50%;
  background: var(--paper-2);
  border: 2px solid rgba(24, 21, 18, 0.10);
  font-family: var(--mono);
  font-size: 16px;
  font-weight: 700;
  color: var(--coral);
}
.guide-flow-step h4 {
  margin: 0 0 6px;
  font-size: 15px;
  letter-spacing: -.02em;
}
.guide-flow-step p {
  margin: 0;
  color: var(--muted);
  font-size: 12px;
  line-height: 1.6;
}

/* ============================================
   Deliverables Section
   ============================================ */
.guide-deliverables {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
  margin-bottom: 32px;
  padding: 32px 28px;
  background: rgba(39, 111, 91, 0.04);
  border: 1px solid rgba(39, 111, 91, 0.12);
  border-radius: 12px;
}
.guide-deliverables-title {
  grid-column: 1 / -1;
  margin: 0 0 4px;
  font-size: 13px;
  font-family: var(--mono);
  font-weight: 700;
  color: var(--green);
  text-transform: uppercase;
  letter-spacing: .08em;
}
.guide-deliverable-card {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 16px;
  background: rgba(255, 255, 255, 0.78);
  border: 1px solid rgba(24, 21, 18, 0.08);
  border-radius: 8px;
}
.guide-deliverable-card .dlv-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  flex-shrink: 0;
  border-radius: 6px;
  font-size: 16px;
  background: var(--paper-2);
  border: 1px solid rgba(24, 21, 18, 0.08);
}
.guide-deliverable-card h5 {
  margin: 0 0 4px;
  font-size: 14px;
}
.guide-deliverable-card p {
  margin: 0;
  color: var(--muted);
  font-size: 12px;
  line-height: 1.6;
}

/* ============================================
   Decision Matrix
   ============================================ */
.guide-decision-matrix {
  margin-bottom: 30px;
  overflow-x: auto;
  border: 1px solid rgba(24, 21, 18, 0.10);
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.72);
  box-shadow: 0 16px 36px rgba(24, 21, 18, 0.04);
}
.guide-decision-table {
  width: 100%;
  min-width: 0;
  border-collapse: collapse;
  table-layout: fixed;
}
.guide-decision-table th,
.guide-decision-table td {
  padding: 18px 18px;
  border-right: 1px solid rgba(24, 21, 18, 0.08);
  border-bottom: 1px solid rgba(24, 21, 18, 0.08);
  vertical-align: top;
}
.guide-decision-table tr:last-child th,
.guide-decision-table tr:last-child td {
  border-bottom: none;
}
.guide-decision-table th:last-child,
.guide-decision-table td:last-child {
  border-right: none;
}
.guide-decision-table thead th {
  background: rgba(244, 241, 235, 0.82);
  color: var(--ink);
  font-size: 13px;
  text-align: left;
}
.guide-decision-table thead th:first-child {
  width: 96px;
  color: var(--quiet);
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: .08em;
}
.guide-decision-table tbody th {
  width: 96px;
  background: rgba(244, 241, 235, 0.54);
  color: var(--ink);
  font-size: 14px;
  text-align: left;
}
.guide-decision-table td {
  color: var(--muted);
  font-size: 13px;
  line-height: 1.72;
}
.tool-head strong,
.tool-head span {
  display: block;
}
.tool-head strong {
  margin-bottom: 4px;
  font-size: 21px;
  line-height: 1.2;
  letter-spacing: -.02em;
}
.tool-head span {
  color: var(--muted);
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .06em;
}
.tool-head--green { border-top: 3px solid var(--green); }
.tool-head--blue { border-top: 3px solid var(--blue); }
.tool-head--coral { border-top: 3px solid var(--coral); }

/* ============================================
   Stat Highlight (big number)
   ============================================ */
.guide-stat-row {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
  margin: 28px 0;
}
.guide-stat-item {
  text-align: center;
  padding: 24px 16px;
  background: rgba(255, 255, 255, 0.78);
  border: 1px solid rgba(24, 21, 18, 0.08);
  border-radius: 10px;
}
.guide-stat-item .stat-number {
  display: block;
  font-size: 36px;
  font-weight: 800;
  letter-spacing: -1px;
  color: var(--coral);
  line-height: 1.1;
}
.guide-stat-item .stat-label {
  display: block;
  margin-top: 6px;
  font-size: 12px;
  color: var(--quiet);
  font-family: var(--mono);
  text-transform: uppercase;
  letter-spacing: .04em;
}

/* ============================================
   Section Title (with decoration)
   ============================================ */
.guide-section-title {
  display: flex;
  align-items: center;
  gap: 14px;
  margin: 0 0 16px;
  font-size: 26px;
  letter-spacing: -0.02em;
}
.guide-section-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  flex-shrink: 0;
  background: var(--paper-2);
  border: 1px solid rgba(24, 21, 18, 0.08);
  font-family: var(--mono);
  font-size: 13px;
  font-weight: 700;
  color: var(--ink);
}
.guide-section-line {
  width: 32px;
  height: 2px;
  background: var(--coral);
  flex-shrink: 0;
}

/* ============================================
   Trust Anchors (index page)
   ============================================ */
.guide-trust {
  margin-top: 56px;
  padding: 42px 0 0;
  border-top: 1px solid rgba(24, 21, 18, 0.10);
}
.guide-trust h3 {
  text-align: center;
  margin: 0 0 36px;
  font-size: 18px;
  color: var(--muted);
  font-weight: 500;
}
.guide-trust-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 24px;
}
.guide-trust-card {
  text-align: center;
  padding: 28px 18px;
  border: 1px solid rgba(24, 21, 18, 0.06);
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.5);
}
.guide-trust-card .trust-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 52px;
  height: 52px;
  margin-bottom: 16px;
  border-radius: 50%;
  font-size: 22px;
  background: var(--paper-2);
  border: 1px solid rgba(24, 21, 18, 0.08);
}
.guide-trust-card h4 {
  margin: 0 0 8px;
  font-size: 15px;
}
.guide-trust-card p {
  margin: 0;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.7;
}

/* ============================================
   Capability Cards (index page)
   ============================================ */
.guide-capability-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 20px;
  margin-bottom: 16px;
}
.guide-capability-card {
  padding: 34px 28px 28px;
  border-radius: 12px;
  border: 1px solid rgba(24, 21, 18, 0.10);
  background: rgba(255, 255, 255, 0.78);
  box-shadow: 0 12px 32px rgba(24, 21, 18, 0.04);
  text-decoration: none;
  color: var(--ink);
  display: flex;
  flex-direction: column;
  transition: transform 0.2s, box-shadow 0.2s;
}
.guide-capability-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 18px 44px rgba(24, 21, 18, 0.08);
}
.guide-capability-num {
  font-family: var(--mono);
  font-size: 48px;
  font-weight: 800;
  line-height: 1;
  margin-bottom: 16px;
  letter-spacing: -2px;
}
.guide-capability-card h3 {
  margin: 0 0 8px;
  font-size: 20px;
  letter-spacing: -.02em;
}
.guide-capability-card .cap-problem {
  color: var(--muted);
  font-size: 13px;
  line-height: 1.7;
  margin: 0 0 18px;
}
.guide-capability-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 18px;
}
.guide-capability-tag {
  font-family: var(--mono);
  font-size: 10px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .03em;
  padding: 4px 8px;
  border-radius: 4px;
}
.guide-capability-cta {
  margin-top: auto;
  font-size: 13px;
  font-weight: 800;
}
/* Color variants */
.guide-capability-card--coral .guide-capability-num { color: var(--coral); }
.guide-capability-card--coral { border-top: 3px solid var(--coral); }
.guide-capability-card--coral .guide-capability-tag { background: rgba(201, 98, 77, 0.08); color: var(--coral); }
.guide-capability-card--coral .guide-capability-cta { color: var(--coral); }

.guide-capability-card--blue .guide-capability-num { color: var(--blue); }
.guide-capability-card--blue { border-top: 3px solid var(--blue); }
.guide-capability-card--blue .guide-capability-tag { background: rgba(36, 77, 115, 0.08); color: var(--blue); }
.guide-capability-card--blue .guide-capability-cta { color: var(--blue); }

.guide-capability-card--green .guide-capability-num { color: var(--green); }
.guide-capability-card--green { border-top: 3px solid var(--green); }
.guide-capability-card--green .guide-capability-tag { background: rgba(39, 111, 91, 0.08); color: var(--green); }
.guide-capability-card--green .guide-capability-cta { color: var(--green); }

/* ============================================
   Layout
   ============================================ */
.guide-layout {
  width: min(1160px, calc(100% - 40px));
  margin: 0 auto 96px;
  display: grid;
  grid-template-columns: minmax(0, 1fr) 280px;
  gap: 56px;
  align-items: start;
}
.guide-layout--full {
  grid-template-columns: 1fr;
}
.guide-content {
  display: grid;
  gap: 28px;
}

/* ============================================
   Content Blocks
   ============================================ */
.guide-block {
  padding: 34px;
  border: 1px solid rgba(24, 21, 18, 0.10);
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.78);
  box-shadow: 0 18px 40px rgba(24, 21, 18, 0.04);
}
.guide-block h2 {
  margin: 0 0 16px;
  font-size: 26px;
  letter-spacing: -0.02em;
}
.guide-block h3 {
  margin: 24px 0 8px;
  font-size: 18px;
}
.guide-block p,
.guide-block li {
  color: var(--muted);
  font-size: 15px;
  line-height: 1.9;
}
.guide-block ul,
.guide-block ol {
  margin: 0;
  padding-left: 20px;
}
.guide-block p {
  margin: 0 0 14px;
}
.guide-block code,
.guide-card code {
  padding: 2px 6px;
  border: 1px solid rgba(24, 21, 18, 0.10);
  border-radius: 6px;
  background: rgba(255, 255, 255, 0.70);
  color: var(--ink);
  font-family: "SFMono-Regular", Consolas, "Liberation Mono", monospace;
  font-size: 0.92em;
  white-space: normal;
}
.guide-block pre {
  margin: 12px 0;
  padding: 16px 18px;
  background: rgba(24, 21, 18, 0.04);
  border: 1px solid rgba(24, 21, 18, 0.08);
  border-radius: 8px;
  overflow-x: auto;
  font-size: 13px;
  line-height: 1.7;
}
.guide-block pre code {
  background: none;
  border: none;
  padding: 0;
  font-size: inherit;
}

/* Content block variants */
.guide-block--highlight {
  border-left: 3px solid var(--coral);
  background: rgba(201, 98, 77, 0.04);
}
.guide-block--highlight h2 { color: var(--coral); }
.guide-block--checklist {
  background: rgba(39, 111, 91, 0.05);
  border-color: rgba(39, 111, 91, 0.14);
}
.guide-block--checklist h2 { color: var(--green); }
.guide-block--checklist ul { list-style: none; padding-left: 0; }
.guide-block--checklist li {
  padding: 10px 0 10px 28px;
  position: relative;
  border-bottom: 1px solid rgba(24, 21, 18, 0.06);
}
.guide-block--checklist li:last-child { border-bottom: none; }
.guide-block--checklist li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 16px;
  width: 14px;
  height: 14px;
  border: 2px solid var(--green);
  border-radius: 3px;
}
.guide-block--info {
  background: rgba(36, 77, 115, 0.04);
  border-color: rgba(36, 77, 115, 0.12);
}
.guide-block--info h2 { color: var(--blue); }

/* ============================================
   Guide Note (inline callout)
   ============================================ */
.guide-note {
  border-left: 3px solid var(--coral);
  padding: 16px 18px;
  background: rgba(201, 98, 77, 0.07);
  color: var(--muted);
  font-size: 14px;
  line-height: 1.8;
  margin-top: 16px;
}

/* ============================================
   Interactive Assessment Widgets
   ============================================ */
.guide-interactive {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 300px;
  gap: 18px;
  align-items: start;
}
.guide-assessment {
  display: grid;
  gap: 14px;
}
.guide-assessment-row {
  padding: 18px;
  border: 1px solid rgba(24, 21, 18, 0.08);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.72);
}
.guide-assessment-row-header {
  display: flex;
  justify-content: space-between;
  gap: 14px;
  align-items: flex-start;
  margin-bottom: 12px;
}
.guide-assessment-row h3 {
  margin: 0 0 4px;
  font-size: 16px;
}
.guide-assessment-row p {
  margin: 0;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.65;
}
.guide-score-value {
  min-width: 34px;
  height: 34px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 999px;
  background: rgba(37, 78, 118, 0.08);
  color: var(--blue);
  font-family: var(--mono);
  font-size: 14px;
  font-weight: 800;
}
.guide-score-options {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 8px;
}
.guide-score-options button {
  min-height: 40px;
  border: 1px solid rgba(24, 21, 18, 0.12);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.82);
  color: var(--muted);
  font-family: var(--mono);
  font-weight: 800;
  cursor: pointer;
  transition: background 0.15s, color 0.15s, border-color 0.15s, transform 0.15s;
}
.guide-score-options button:hover,
.guide-score-options button:focus-visible {
  border-color: rgba(37, 78, 118, 0.28);
  color: var(--blue);
}
.guide-score-options button.is-active {
  border-color: var(--green);
  background: rgba(39, 111, 91, 0.10);
  color: var(--green);
}
.guide-result-card {
  position: sticky;
  top: 92px;
  padding: 24px;
  border: 1px solid rgba(24, 21, 18, 0.10);
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.82);
  box-shadow: 0 18px 40px rgba(24, 21, 18, 0.05);
}
.guide-result-label {
  display: block;
  margin-bottom: 8px;
  color: var(--quiet);
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: .08em;
}
.guide-result-score {
  display: flex;
  align-items: baseline;
  gap: 6px;
  margin-bottom: 10px;
}
.guide-result-score strong {
  color: var(--ink);
  font-size: 50px;
  line-height: 1;
  letter-spacing: -1px;
}
.guide-result-score span {
  color: var(--quiet);
  font-family: var(--mono);
  font-weight: 800;
}
.guide-result-card h3 {
  margin: 0 0 10px;
  font-size: 18px;
}
.guide-result-card p {
  margin: 0 0 14px;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.75;
}
.guide-result-list {
  display: grid;
  gap: 8px;
  margin: 14px 0 0;
  padding: 0;
  list-style: none;
}
.guide-result-list li {
  padding: 10px 12px;
  border-radius: 8px;
  background: rgba(244, 241, 235, 0.75);
  color: var(--muted);
  font-size: 13px;
  line-height: 1.55;
}
.guide-result-pill {
  display: inline-flex;
  align-items: center;
  min-height: 28px;
  padding: 0 10px;
  border-radius: 999px;
  background: rgba(201, 98, 77, 0.10);
  color: var(--coral);
  font-size: 12px;
  font-weight: 800;
}
.guide-result-card.is-medium .guide-result-pill {
  background: rgba(138, 107, 34, 0.12);
  color: #7a5d1d;
}
.guide-result-card.is-low .guide-result-pill {
  background: rgba(37, 78, 118, 0.10);
  color: var(--blue);
}

/* ============================================
   Research Compressor Demo
   ============================================ */
.guide-research-demo {
  margin-top: 20px;
  display: grid;
  gap: 16px;
}
.research-demo-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.research-demo-tabs button {
  min-height: 38px;
  padding: 0 14px;
  border: 1px solid rgba(24, 21, 18, 0.10);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.76);
  color: var(--muted);
  font-weight: 800;
  cursor: pointer;
  transition: background 0.15s, border-color 0.15s, color 0.15s, transform 0.15s;
}
.research-demo-tabs button:hover,
.research-demo-tabs button:focus-visible {
  border-color: rgba(39, 111, 91, 0.28);
  color: var(--green);
}
.research-demo-tabs button.is-active {
  border-color: rgba(39, 111, 91, 0.36);
  background: rgba(39, 111, 91, 0.10);
  color: var(--green);
}
.research-demo-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.25fr);
  gap: 16px;
}
.research-input-card,
.research-output-card {
  border: 1px solid rgba(24, 21, 18, 0.10);
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.80);
  box-shadow: 0 14px 34px rgba(24, 21, 18, 0.04);
}
.research-input-card {
  padding: 22px;
}
.research-input-card h3 {
  margin: 0 0 12px;
  font-size: 18px;
}
.research-input-card p {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.85;
}
.research-output-card {
  padding: 22px;
  display: grid;
  gap: 16px;
}
.research-output-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding-bottom: 12px;
  border-bottom: 1px solid rgba(24, 21, 18, 0.08);
}
.research-output-head .guide-result-label {
  margin-bottom: 0;
}
.research-output-head strong {
  display: inline-flex;
  align-items: center;
  min-height: 30px;
  padding: 0 10px;
  border-radius: 999px;
  background: rgba(37, 78, 118, 0.08);
  color: var(--blue);
  font-size: 12px;
  white-space: nowrap;
}
.research-output-section h4,
.research-output-row h4 {
  margin: 0 0 8px;
  font-size: 14px;
}
.research-output-section p,
.research-output-row p {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.75;
}
.research-output-section ul {
  display: grid;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
}
.research-output-section li {
  padding-left: 18px;
  position: relative;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.65;
}
.research-output-section li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 10px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--green);
}
.research-output-row {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}
.research-output-row > div {
  padding: 14px;
  border-radius: 8px;
  background: rgba(244, 241, 235, 0.75);
}

/* ============================================
   Sales Lead Sample
   ============================================ */
.lead-sample-board {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
  gap: 16px;
  margin-top: 20px;
}
.lead-intake-card,
.lead-score-card {
  border: 1px solid rgba(24, 21, 18, 0.10);
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.82);
  box-shadow: 0 14px 34px rgba(24, 21, 18, 0.04);
}
.lead-intake-card {
  padding: 22px;
}
.lead-intake-card h3,
.lead-score-card h3 {
  margin: 0 0 14px;
  font-size: 18px;
}
.lead-intake-card dl {
  display: grid;
  gap: 0;
  margin: 0;
}
.lead-intake-card dl > div {
  display: grid;
  grid-template-columns: 92px minmax(0, 1fr);
  gap: 14px;
  padding: 12px 0;
  border-top: 1px solid rgba(24, 21, 18, 0.08);
}
.lead-intake-card dt {
  color: var(--quiet);
  font-size: 13px;
  font-weight: 800;
}
.lead-intake-card dd {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.65;
}
.lead-score-card {
  padding: 22px;
  border-color: rgba(201, 98, 77, 0.18);
  background:
    linear-gradient(135deg, rgba(201, 98, 77, 0.07), rgba(255, 255, 255, 0.82) 46%),
    rgba(255, 255, 255, 0.82);
}
.lead-score-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 14px;
  margin-bottom: 14px;
}
.lead-score-head .guide-result-label {
  margin-bottom: 0;
}
.lead-score-head strong {
  display: inline-flex;
  align-items: center;
  min-height: 34px;
  padding: 0 12px;
  border-radius: 999px;
  background: rgba(201, 98, 77, 0.12);
  color: var(--coral);
  font-size: 13px;
  font-weight: 900;
}
.lead-score-card p {
  margin: 0 0 18px;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.8;
}
.lead-score-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
}
.lead-score-grid div {
  padding: 12px;
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.76);
  border: 1px solid rgba(24, 21, 18, 0.08);
}
.lead-score-grid span {
  display: block;
  margin-bottom: 6px;
  color: var(--quiet);
  font-size: 12px;
}
.lead-score-grid strong {
  color: var(--ink);
  font-size: 16px;
}
.lead-handoff-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}
.lead-handoff-grid > div {
  padding: 20px;
  border: 1px solid rgba(37, 78, 118, 0.12);
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.68);
}
.lead-handoff-grid h3 {
  margin-top: 0;
}
.lead-handoff-grid ul {
  padding-left: 18px;
}

/* ============================================
   Meeting Action Extractor Demo
   ============================================ */
.meeting-demo {
  display: grid;
  gap: 16px;
  margin-top: 20px;
}
.meeting-demo-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.meeting-demo-tabs button {
  min-height: 38px;
  padding: 0 14px;
  border: 1px solid rgba(24, 21, 18, 0.10);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.76);
  color: var(--muted);
  font-weight: 800;
  cursor: pointer;
}
.meeting-demo-tabs button:hover,
.meeting-demo-tabs button:focus-visible {
  border-color: rgba(37, 78, 118, 0.30);
  color: var(--blue);
}
.meeting-demo-tabs button.is-active {
  border-color: rgba(37, 78, 118, 0.36);
  background: rgba(37, 78, 118, 0.10);
  color: var(--blue);
}
.meeting-demo-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.95fr) minmax(0, 1.25fr);
  gap: 16px;
}
.meeting-transcript-card,
.meeting-output-card {
  border: 1px solid rgba(24, 21, 18, 0.10);
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.82);
  box-shadow: 0 14px 34px rgba(24, 21, 18, 0.04);
}
.meeting-transcript-card {
  padding: 22px;
}
.meeting-transcript-card h3 {
  margin: 0 0 12px;
  font-size: 18px;
}
.meeting-transcript-card p {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.9;
}
.meeting-output-card {
  display: grid;
  gap: 16px;
  padding: 22px;
}
.meeting-output-section h4,
.meeting-output-row h4 {
  margin: 0 0 8px;
  font-size: 14px;
}
.meeting-output-section ul {
  display: grid;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
}
.meeting-output-section li {
  padding-left: 18px;
  position: relative;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.65;
}
.meeting-output-section li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 10px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--blue);
}
.meeting-action-table {
  overflow: hidden;
  border: 1px solid rgba(24, 21, 18, 0.08);
  border-radius: 8px;
}
.meeting-action-head,
.meeting-action-row {
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) minmax(86px, 0.55fr) minmax(98px, 0.65fr);
  gap: 10px;
  padding: 10px 12px;
}
.meeting-action-head {
  background: rgba(37, 78, 118, 0.08);
  color: var(--blue);
  font-size: 12px;
  font-weight: 900;
}
.meeting-action-row {
  border-top: 1px solid rgba(24, 21, 18, 0.08);
  color: var(--muted);
  font-size: 13px;
  line-height: 1.55;
}
.meeting-output-row {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}
.meeting-output-row > div {
  padding: 14px;
  border-radius: 8px;
  background: rgba(244, 241, 235, 0.75);
}
.meeting-output-row p {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.75;
}

/* ============================================
   Content Pipeline Config Demo
   ============================================ */
.content-pipeline-demo {
  display: grid;
  gap: 16px;
  margin-top: 20px;
}
.content-pipeline-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.content-pipeline-tabs button {
  min-height: 38px;
  padding: 0 14px;
  border: 1px solid rgba(24, 21, 18, 0.10);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.76);
  color: var(--muted);
  font-weight: 800;
  cursor: pointer;
}
.content-pipeline-tabs button:hover,
.content-pipeline-tabs button:focus-visible {
  border-color: rgba(138, 107, 34, 0.34);
  color: #7a5d1d;
}
.content-pipeline-tabs button.is-active {
  border-color: rgba(138, 107, 34, 0.34);
  background: rgba(138, 107, 34, 0.12);
  color: #7a5d1d;
}
.content-pipeline-board {
  display: grid;
  grid-template-columns: minmax(0, 0.85fr) minmax(0, 1.4fr);
  gap: 16px;
}
.content-pipeline-summary,
.content-pipeline-steps {
  border: 1px solid rgba(24, 21, 18, 0.10);
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.82);
  box-shadow: 0 14px 34px rgba(24, 21, 18, 0.04);
}
.content-pipeline-summary {
  padding: 22px;
}
.content-pipeline-summary h3 {
  margin: 0 0 12px;
  font-size: 20px;
}
.content-pipeline-summary p {
  margin: 0 0 16px;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.8;
}
.content-pipeline-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.content-pipeline-tags span {
  display: inline-flex;
  align-items: center;
  min-height: 28px;
  padding: 0 10px;
  border-radius: 999px;
  background: rgba(138, 107, 34, 0.10);
  color: #7a5d1d;
  font-size: 12px;
  font-weight: 800;
}
.content-pipeline-steps {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0;
  overflow: hidden;
}
.content-pipeline-steps div {
  padding: 18px;
  border-right: 1px solid rgba(24, 21, 18, 0.08);
  border-bottom: 1px solid rgba(24, 21, 18, 0.08);
}
.content-pipeline-steps div:nth-child(2n) {
  border-right: none;
}
.content-pipeline-steps div:nth-last-child(-n + 2) {
  border-bottom: none;
}
.content-pipeline-steps strong {
  display: block;
  margin-bottom: 8px;
  color: var(--ink);
  font-size: 14px;
}
.content-pipeline-steps p {
  margin: 0;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.7;
}

.guide-textarea {
  width: 100%;
  min-height: 170px;
  resize: vertical;
  padding: 16px;
  border: 1px solid rgba(24, 21, 18, 0.14);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.82);
  color: var(--ink);
  font: inherit;
  line-height: 1.7;
}
.guide-textarea:focus {
  outline: 2px solid rgba(37, 78, 118, 0.24);
  border-color: rgba(37, 78, 118, 0.36);
}
.guide-checklist-score {
  display: grid;
  gap: 10px;
  margin-top: 16px;
}
.guide-check-item {
  display: grid;
  grid-template-columns: 24px minmax(0, 1fr);
  gap: 10px;
  align-items: start;
  padding: 12px;
  border: 1px solid rgba(24, 21, 18, 0.08);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.72);
}
.guide-check-item input {
  width: 18px;
  height: 18px;
  margin-top: 2px;
  accent-color: var(--green);
}
.guide-check-item strong {
  display: block;
  margin-bottom: 3px;
  font-size: 14px;
}
.guide-check-item span {
  color: var(--muted);
  font-size: 12px;
  line-height: 1.55;
}

/* ============================================
   Executive Report Sample
   ============================================ */
.guide-report-actions {
  display: flex;
  justify-content: flex-end;
  margin-bottom: 12px;
}
.guide-print-button {
  min-height: 40px;
  padding: 0 14px;
  border: 1px solid rgba(24, 21, 18, 0.14);
  border-radius: 999px;
  background: var(--ink);
  color: #fff;
  font-size: 13px;
  font-weight: 800;
  cursor: pointer;
}
.guide-report-sample {
  border: 1px solid rgba(24, 21, 18, 0.14);
  border-radius: 10px;
  background: #fff;
  box-shadow: 0 22px 52px rgba(24, 21, 18, 0.08);
  overflow: hidden;
}
.report-context-banner {
  padding: 14px 24px;
  border-bottom: 1px solid rgba(39, 111, 91, 0.16);
  background: rgba(39, 111, 91, 0.08);
  color: var(--green);
  font-size: 13px;
  font-weight: 800;
  line-height: 1.7;
}
.report-cover {
  padding: 34px;
  border-bottom: 1px solid rgba(24, 21, 18, 0.10);
  background:
    linear-gradient(135deg, rgba(37, 78, 118, 0.08), transparent 42%),
    linear-gradient(180deg, rgba(244, 241, 235, 0.96), #fff);
}
.report-eyebrow {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  color: var(--quiet);
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: .08em;
}
.report-cover h2 {
  max-width: 720px;
  margin: 28px 0 14px;
  font-size: clamp(32px, 5vw, 54px);
  line-height: 1.05;
  letter-spacing: -1px;
}
.report-cover p {
  max-width: 660px;
  margin: 0;
  color: var(--muted);
  font-size: 16px;
  line-height: 1.85;
}
.report-meta {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  margin-top: 30px;
}
.report-meta-card {
  padding: 14px;
  border: 1px solid rgba(24, 21, 18, 0.08);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.74);
}
.report-meta-card span {
  display: block;
  color: var(--quiet);
  font-family: var(--mono);
  font-size: 10px;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: .08em;
}
.report-meta-card strong {
  display: block;
  margin-top: 6px;
  font-size: 15px;
}
.report-section {
  padding: 28px 34px;
  border-bottom: 1px solid rgba(24, 21, 18, 0.08);
}
.report-section:last-child {
  border-bottom: none;
}
.report-section h3 {
  margin: 0 0 16px;
  font-size: 20px;
}
.report-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}
.report-finding {
  padding: 16px;
  border-left: 3px solid var(--blue);
  background: rgba(37, 78, 118, 0.05);
  border-radius: 8px;
}
.report-finding:nth-child(2) {
  border-left-color: var(--green);
  background: rgba(39, 111, 91, 0.05);
}
.report-finding:nth-child(3) {
  border-left-color: var(--coral);
  background: rgba(201, 98, 77, 0.06);
}
.report-finding:nth-child(4) {
  border-left-color: #8a5f1d;
  background: rgba(138, 95, 29, 0.06);
}
.report-finding strong {
  display: block;
  margin-bottom: 6px;
}
.report-finding p {
  margin: 0;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.7;
}
.report-phase-list {
  display: grid;
  gap: 10px;
  margin: 0;
  padding: 0;
  list-style: none;
}
.report-phase-list li {
  display: grid;
  grid-template-columns: 90px minmax(0, 1fr);
  gap: 14px;
  padding: 14px;
  border: 1px solid rgba(24, 21, 18, 0.08);
  border-radius: 8px;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.65;
}
.report-phase-list strong {
  color: var(--ink);
}

/* ============================================
   Tables
   ============================================ */
.guide-table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 12px;
  overflow: hidden;
  border: 1px solid rgba(24, 21, 18, 0.10);
  border-radius: 8px;
}
.guide-table th,
.guide-table td {
  padding: 16px;
  border-bottom: 1px solid rgba(24, 21, 18, 0.08);
  text-align: left;
  vertical-align: top;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.75;
}
.guide-table th {
  color: var(--ink);
  background: rgba(244, 241, 235, 0.72);
  font-weight: 800;
}
.guide-table tr:last-child td { border-bottom: none; }

/* ============================================
   Quick Reference Cards
   ============================================ */
.guide-quickref {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
  margin-bottom: 28px;
}
.guide-quickref--3 {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}
.guide-quickref-card {
  padding: 20px;
  border: 1px solid rgba(24, 21, 18, 0.10);
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.78);
  box-shadow: 0 12px 28px rgba(24, 21, 18, 0.03);
  text-align: center;
}
.guide-quickref-card h4 {
  margin: 0 0 6px;
  font-size: 13px;
  font-family: var(--mono);
  color: var(--quiet);
  text-transform: uppercase;
  letter-spacing: .04em;
}
.guide-quickref-card p,
.guide-quickref-card code {
  margin: 0;
  font-size: 15px;
  font-weight: 700;
  color: var(--ink);
  line-height: 1.4;
}
.guide-quickref-card code {
  font-family: "SFMono-Regular", Consolas, "Liberation Mono", monospace;
  background: none;
  border: none;
  padding: 0;
  font-size: 16px;
}

/* ============================================
   Sidebar & ToC
   ============================================ */
.guide-sidebar {
  position: sticky;
  top: 92px;
  display: grid;
  gap: 16px;
  max-height: calc(100vh - 112px);
  overflow-y: auto;
  overscroll-behavior: contain;
}
.guide-card {
  padding: 24px;
  border: 1px solid rgba(24, 21, 18, 0.10);
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.72);
}
.guide-card h2,
.guide-card h3 {
  margin: 0 0 12px;
  font-size: 16px;
}
.guide-card p,
.guide-card a,
.guide-card li {
  color: var(--muted);
  font-size: 13px;
  line-height: 1.8;
}
.guide-card a {
  display: block;
  color: var(--ink);
  font-weight: 800;
  text-decoration: none;
}
.guide-card a + a { margin-top: 8px; }
.guide-card .guide-cta {
  min-height: 44px;
  margin-top: 14px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0 16px;
  border-radius: 999px;
  background: var(--green);
  color: #fff;
}
.guide-card--cta {
  background: rgba(201, 98, 77, 0.06);
  border-color: rgba(201, 98, 77, 0.16);
}
.guide-card--cta .guide-cta {
  background: var(--coral);
}
.guide-sources { padding-top: 10px; }
.guide-sources a {
  display: inline;
  color: var(--blue);
}

/* ToC (sidebar variant) */
.guide-toc {
  display: grid;
  gap: 4px;
}
.guide-toc-title {
  margin: 0 0 8px;
  font-size: 12px;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: .08em;
  color: var(--quiet);
  font-family: var(--mono);
}
.guide-toc a {
  display: block;
  padding: 6px 10px;
  border-radius: 6px;
  color: var(--muted);
  font-size: 13px;
  text-decoration: none;
  line-height: 1.5;
  border-left: 2px solid transparent;
  transition: 0.15s;
}
.guide-toc a:hover {
  color: var(--coral);
  background: rgba(201, 98, 77, 0.06);
  border-left-color: var(--coral);
}

/* ============================================
   Tool Cards (in-content)
   ============================================ */
.guide-tool-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
  margin-top: 18px;
}
.guide-tool-card {
  min-height: 190px;
  padding: 22px;
  display: flex;
  flex-direction: column;
  border: 1px solid rgba(37, 78, 118, 0.16);
  border-radius: 10px;
  background: rgba(37, 78, 118, 0.06);
  color: var(--ink);
  text-decoration: none;
}
.guide-tool-card h3 {
  margin: 0 0 10px;
  font-size: 20px;
}
.guide-tool-card p {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.8;
}
.guide-tool-card span {
  margin-top: auto;
  color: var(--blue);
  font-size: 13px;
  font-weight: 800;
}

/* ============================================
   Related Guides
   ============================================ */
.guide-related {
  border-top: 1px solid rgba(24, 21, 18, 0.10);
  padding-top: 28px;
}
.guide-related h3 {
  margin: 0 0 14px;
  font-size: 14px;
  font-weight: 800;
  color: var(--quiet);
  font-family: var(--mono);
  text-transform: uppercase;
  letter-spacing: .06em;
}
.guide-related-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}
.guide-related-card {
  padding: 18px;
  border: 1px solid rgba(24, 21, 18, 0.08);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.6);
  text-decoration: none;
  color: var(--ink);
  transition: 0.2s;
}
.guide-related-card:hover {
  border-color: rgba(37, 78, 118, 0.24);
  background: rgba(37, 78, 118, 0.04);
}
.guide-related-card strong {
  display: block;
  margin-bottom: 4px;
  font-size: 15px;
}
.guide-related-card span {
  color: var(--muted);
  font-size: 13px;
}

/* ============================================
   Method Section Header
   ============================================ */
.guide-method-header {
  margin-bottom: 20px;
}
.guide-method-header .method-label {
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 700;
  color: var(--coral);
  text-transform: uppercase;
  letter-spacing: .08em;
}
.guide-method-header h2 {
  margin: 8px 0 10px;
  font-size: 28px;
  letter-spacing: -.02em;
}

/* ============================================
   Reading Progress Bar
   ============================================ */
.guide-progress {
  position: fixed;
  top: 0;
  left: 0;
  z-index: 1000;
  width: 100%;
  height: 3px;
  background: transparent;
  pointer-events: none;
}
.guide-progress::after {
  content: "";
  display: block;
  width: var(--progress, 0%);
  height: 100%;
  background: var(--coral);
  transition: width 0.15s linear;
}

/* ============================================
   Back to Top
   ============================================ */
.guide-back-top {
  position: fixed;
  right: 28px;
  bottom: 36px;
  z-index: 900;
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid rgba(24, 21, 18, 0.15);
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.92);
  color: var(--ink);
  font-size: 20px;
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  transform: translateY(8px);
  transition: opacity 0.25s, visibility 0.25s, transform 0.25s, background 0.2s;
  box-shadow: 0 4px 16px rgba(24, 21, 18, 0.08);
  backdrop-filter: blur(8px);
}
.guide-back-top.is-visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}
.guide-back-top:hover {
  background: var(--ink);
  color: #fff;
  border-color: var(--ink);
}

/* ============================================
   Code Copy Button
   ============================================ */
.guide-copy-btn {
  position: absolute;
  top: 10px;
  right: 10px;
  z-index: 2;
  min-height: 28px;
  padding: 0 10px;
  border: 1px solid rgba(24, 21, 18, 0.12);
  border-radius: 6px;
  background: rgba(255, 255, 255, 0.88);
  color: var(--muted);
  font-size: 11px;
  font-weight: 700;
  font-family: var(--sans);
  cursor: pointer;
  opacity: 0;
  transition: opacity 0.2s, background 0.15s, color 0.15s;
}
.guide-block pre:hover .guide-copy-btn,
.guide-copy-btn:focus-visible {
  opacity: 1;
}
.guide-copy-btn:hover {
  background: var(--ink);
  color: #fff;
  border-color: var(--ink);
}
.guide-copy-btn.is-copied {
  background: var(--green);
  color: #fff;
  border-color: var(--green);
}

/* ============================================
   Scroll Spy — active ToC link
   ============================================ */
.guide-toc a.is-active {
  color: var(--coral);
  background: rgba(201, 98, 77, 0.08);
  border-left-color: var(--coral);
  font-weight: 700;
}

/* ============================================
   Mobile
   ============================================ */
@media (max-width: 850px) {
  .guide-nav-inner,
  .guide-layout,
  .guide-hero,
  .guide-hero--methodology .guide-hero-inner {
    width: min(100% - 32px, 1080px);
  }
  .guide-nav-inner {
    align-items: flex-start;
    padding: 14px 0;
    flex-direction: column;
    gap: 12px;
  }
  .guide-brandline {
    width: 100%;
    align-items: center;
    flex-wrap: wrap;
    gap: 6px 10px;
  }
  .brand-trail {
    max-width: 100%;
    overflow: hidden;
    text-overflow: ellipsis;
  }
  .guide-layout {
    grid-template-columns: 1fr;
    gap: 28px;
  }
  .guide-hero { padding: 46px 0 28px; }
  .guide-hero h1 {
    font-size: 38px;
    letter-spacing: -1px;
    margin: 18px 0 14px;
  }
  .guide-hero p {
    font-size: 16px;
    line-height: 1.75;
  }
  .guide-hero--methodology {
    padding: 34px 0 26px;
    margin-bottom: 18px;
  }
  .guide-abstract {
    grid-template-columns: 1fr;
    gap: 12px;
    margin-bottom: 28px;
  }
  .guide-abstract-card {
    padding: 22px 20px;
  }
  .guide-flow { flex-direction: column; align-items: center; gap: 0; }
  .guide-flow-step { min-width: auto; padding: 16px 0; }
  .guide-flow-step::after { content: "↓"; right: auto; top: auto; bottom: -4px; left: 50%; transform: translateX(-50%); }
  .guide-flow-step:last-child::after { content: none; }
  .guide-flow-num { width: 40px; height: 40px; font-size: 14px; }

  .guide-deliverables { grid-template-columns: 1fr; padding: 24px 18px; }
  .guide-stat-row { grid-template-columns: 1fr; }
  .guide-decision-table { min-width: 720px; }
  .guide-capability-grid { grid-template-columns: 1fr; }
  .guide-trust-grid { grid-template-columns: 1fr; }
  .guide-quickref { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .guide-quickref--3 { grid-template-columns: 1fr; }
  .guide-interactive { grid-template-columns: 1fr; }
  .guide-result-card { position: static; }
  .guide-score-options { grid-template-columns: repeat(5, minmax(42px, 1fr)); }
  .research-demo-grid,
  .research-output-row,
  .lead-sample-board,
  .lead-score-grid,
  .lead-handoff-grid,
  .meeting-demo-grid,
  .meeting-output-row,
  .content-pipeline-board,
  .content-pipeline-steps { grid-template-columns: 1fr; }
  .research-output-head { align-items: flex-start; flex-direction: column; }
  .lead-intake-card dl > div { grid-template-columns: 1fr; gap: 4px; }
  .lead-score-head { align-items: flex-start; flex-direction: column; }
  .content-pipeline-steps div,
  .content-pipeline-steps div:nth-child(2n),
  .content-pipeline-steps div:nth-last-child(-n + 2) {
    border-right: none;
    border-bottom: 1px solid rgba(24, 21, 18, 0.08);
  }
  .content-pipeline-steps div:last-child { border-bottom: none; }
  .meeting-action-head { display: none; }
  .meeting-action-row {
    grid-template-columns: 1fr;
    gap: 4px;
  }
  .meeting-action-row span::before {
    display: block;
    margin-bottom: 2px;
    color: var(--quiet);
    font-size: 11px;
    font-weight: 900;
  }
  .meeting-action-row span:nth-child(1)::before { content: "事项"; }
  .meeting-action-row span:nth-child(2)::before { content: "主责人"; }
  .meeting-action-row span:nth-child(3)::before { content: "截止时间"; }
  .report-meta,
  .report-grid { grid-template-columns: 1fr; }
  .report-cover,
  .report-section { padding: 24px; }
  .report-phase-list li { grid-template-columns: 1fr; }

  .guide-block { padding: 24px; }
  .guide-table { display: block; overflow-x: auto; }
  .guide-sidebar { position: static; }
  .guide-toc { position: static; }
  .guide-tool-grid { grid-template-columns: 1fr; }
  .guide-related-grid { grid-template-columns: 1fr; }
}

@media print {
  @page {
    size: A4;
    margin: 14mm;
  }
  html,
  body.guide-page {
    background: #fff !important;
  }
  .guide-nav,
  .guide-hero,
  .guide-sidebar,
  .guide-related,
  .guide-progress,
  .guide-back-top,
  .guide-report-actions {
    display: none !important;
  }
  .guide-layout {
    width: 100%;
    margin: 0;
    display: block;
  }
  .guide-content {
    display: block;
  }
  .guide-content > *:not(.guide-report-sample):not(#summary):not(#sample) {
    display: none !important;
  }
  .guide-report-sample,
  .guide-block {
    box-shadow: none !important;
    break-inside: avoid;
  }
  .guide-report-sample {
    border-color: #111;
  }
  .report-cover {
    background: #fff !important;
  }
  .report-cover h2 {
    font-size: 34px;
  }
  .report-grid,
  .report-meta {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}