/* ============================================================
   Lingxi · 功能详情 · 长滚动编辑式
   Source: design handoff feature-detail.css + styles.css subset
   Pairs with /static/css/01-tokens.css (loaded first by each page)
   ============================================================ */

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

html { scroll-behavior: smooth; }

body.marketing-page {
  font-family: var(--font-sans);
  background: var(--bg-base);
  color: var(--text-primary);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
ul { list-style: none; }

/* ── Container ────────────────────────────────────────────── */
.fd-container {
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 48px;
}

/* ── Buttons ──────────────────────────────────────────────── */
.fd-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-family: inherit;
  font-weight: 600;
  border-radius: 10px;
  transition: transform var(--transition-fast),
              box-shadow var(--transition-fast),
              background var(--transition-fast),
              color var(--transition-fast),
              border-color var(--transition-fast);
  white-space: nowrap;
  cursor: pointer;
  border: 1px solid transparent;
}
.fd-btn-sm { padding: 8px 18px; font-size: 0.86rem; }
.fd-btn-lg { padding: 14px 28px; font-size: 0.95rem; }

.fd-btn-primary {
  background: linear-gradient(135deg, var(--color-sage-500), var(--color-sage-700));
  color: #fff;
  box-shadow: 0 2px 10px rgba(123, 175, 142, 0.3);
}
.fd-btn-primary:hover {
  transform: translateY(-1px);
  box-shadow: 0 6px 20px rgba(123, 175, 142, 0.45);
  color: #fff;
}

.fd-btn-light {
  background: #fff;
  color: var(--text-primary);
  border: 1px solid var(--border-subtle);
  box-shadow: var(--shadow-xs);
}
.fd-btn-light:hover {
  border-color: var(--color-sage-400);
  color: var(--color-sage-700);
}

/* ── Browser-window mock ──────────────────────────────────── */
.fd-window {
  border-radius: 12px;
  overflow: hidden;
  background: #fff;
  border: 1px solid var(--border-subtle);
  box-shadow:
    0 30px 60px -20px rgba(44, 42, 38, 0.18),
    0 12px 24px -10px rgba(44, 42, 38, 0.10),
    0 2px 6px rgba(44, 42, 38, 0.04);
}
.fd-window-bar {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 14px;
  background: var(--color-gray-50);
  border-bottom: 1px solid var(--border-subtle);
}
.fd-dots { display: flex; gap: 6px; }
.fd-dots span {
  width: 11px;
  height: 11px;
  border-radius: 50%;
  background: var(--color-gray-300);
}
.fd-dots span:nth-child(1) { background: #FF6157; }
.fd-dots span:nth-child(2) { background: #FFC130; }
.fd-dots span:nth-child(3) { background: #2BC940; }
.fd-window-url {
  flex: 1;
  font-size: 0.78rem;
  color: var(--text-tertiary);
  background: #fff;
  border: 1px solid var(--border-subtle);
  border-radius: 6px;
  padding: 4px 10px;
  text-align: center;
  max-width: 280px;
  margin: 0 auto;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  justify-content: center;
}
.fd-window-url i { color: var(--color-sage-600); font-size: 0.7rem; }
.fd-window-spacer { width: 56px; }
.fd-window-body { background: #fff; }
.fd-window-body img { width: 100%; display: block; }

/* ── Fade-up entrance ─────────────────────────────────────── */
.fd-fade {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.fd-fade.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* ── Top nav + tabs ───────────────────────────────────────── */
.fd-nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(245, 243, 239, 0.88);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  border-bottom: 1px solid rgba(232, 230, 225, 0.7);
}
.fd-nav-top {
  height: 64px;
  display: flex;
  align-items: center;
}
.fd-nav-top .fd-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
}
.fd-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 1.2rem;
  letter-spacing: -0.4px;
  color: var(--text-primary);
}
.fd-nav-links {
  display: flex;
  align-items: center;
  gap: 28px;
}
.fd-nav-links a {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-secondary);
  transition: color var(--transition-fast);
}
.fd-nav-links a:hover { color: var(--color-sage-700); }
.fd-nav-links a.fd-btn-primary { color: #fff; }

.fd-nav-tabs {
  display: flex;
  align-items: stretch;
  background: var(--color-sage-800);
  overflow-x: auto;
  scrollbar-width: none;
}
.fd-nav-tabs::-webkit-scrollbar { display: none; }
.fd-nav-tabs .fd-container {
  display: flex;
  gap: 2px;
  padding-top: 0;
  padding-bottom: 0;
}
.fd-tab {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 18px;
  font-size: 0.88rem;
  font-weight: 500;
  color: rgba(255, 255, 255, 0.62);
  white-space: nowrap;
  border-bottom: 2px solid transparent;
  transition: color var(--transition-fast),
              background-color var(--transition-fast),
              border-color var(--transition-fast);
}
.fd-tab i {
  font-size: 0.95rem;
  color: rgba(255, 255, 255, 0.55);
}
.fd-tab:hover {
  color: #fff;
  background: rgba(255, 255, 255, 0.06);
}
.fd-tab:hover i { color: rgba(255, 255, 255, 0.85); }
.fd-tab.is-active {
  color: #fff;
  background: rgba(255, 255, 255, 0.10);
  border-bottom-color: var(--color-sand-400);
  font-weight: 600;
}
.fd-tab.is-active i { color: var(--color-sand-300); }
.fd-tab .fd-tab-num {
  font-family: var(--font-mono);
  font-size: 0.76rem;
  color: rgba(255, 255, 255, 0.45);
  font-weight: 500;
}
.fd-tab.is-active .fd-tab-num { color: var(--color-sand-300); }

/* ── Hero ─────────────────────────────────────────────────── */
.fd-hero {
  position: relative;
  padding: 80px 0 100px;
  overflow: hidden;
}
.fd-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 800px 460px at 90% 10%, rgba(168, 201, 181, 0.20), transparent 60%),
    radial-gradient(ellipse 700px 360px at 5% 90%, rgba(232, 213, 190, 0.22), transparent 60%);
  pointer-events: none;
  z-index: 0;
}
.fd-hero .fd-container { position: relative; z-index: 1; }

.fd-hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 1px;
  color: var(--color-sage-700);
  font-weight: 500;
  margin-bottom: 20px;
}
.fd-hero-eyebrow i { font-size: 0.9rem; }

.fd-hero h1 {
  font-family: var(--font-sans);
  font-size: clamp(2.4rem, 4.5vw, 3.6rem);
  line-height: 1.08;
  letter-spacing: -1.4px;
  font-weight: 700;
  color: var(--text-primary);
  max-width: 900px;
  margin-bottom: 28px;
}
.fd-hero h1 strong {
  font-weight: 700;
  color: var(--color-sage-700);
  position: relative;
  white-space: nowrap;
}
.fd-hero h1 strong::after {
  content: "";
  position: absolute;
  left: -2px;
  right: -2px;
  bottom: 4px;
  height: 12px;
  background: rgba(123, 175, 142, 0.22);
  border-radius: 3px;
  z-index: -1;
}
.fd-hero .fd-lede {
  font-size: 1.15rem;
  line-height: 1.75;
  color: var(--text-secondary);
  max-width: 640px;
  margin-bottom: 32px;
}
.fd-hero .fd-cta-row {
  display: flex;
  gap: 12px;
  align-items: center;
  flex-wrap: wrap;
  margin-bottom: 60px;
}

.fd-hero-shot {
  margin-top: 24px;
  position: relative;
}
.fd-hero-shot .fd-window {
  box-shadow:
    0 50px 100px -30px rgba(44, 42, 38, 0.30),
    0 20px 40px -15px rgba(44, 42, 38, 0.15);
}
.fd-hero-shot .fd-window-body img {
  max-height: 720px;
  object-fit: cover;
  object-position: top left;
}

/* ── Stat strip ───────────────────────────────────────────── */
.fd-stats {
  background: #fff;
  border-top: 1px solid var(--border-subtle);
  border-bottom: 1px solid var(--border-subtle);
  padding: 36px 0;
}
.fd-stats-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 24px;
}
.fd-stat .fd-stat-num {
  font-family: var(--font-sans);
  font-size: 2.4rem;
  font-weight: 700;
  color: var(--color-sage-800);
  letter-spacing: -1px;
  line-height: 1;
  margin-bottom: 8px;
}
.fd-stat .fd-stat-label {
  font-size: 0.86rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

/* ── Numbered chapter sections ────────────────────────────── */
.fd-chapters {
  padding: 100px 0 60px;
  background: var(--bg-base);
}
.fd-section-head {
  max-width: 720px;
  margin: 0 auto 80px;
  text-align: center;
}
.fd-section-head .fd-kicker {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 1.4px;
  text-transform: uppercase;
  color: var(--color-sage-700);
  margin-bottom: 14px;
}
.fd-section-head h2 {
  font-size: clamp(1.8rem, 3vw, 2.4rem);
  font-weight: 700;
  letter-spacing: -0.6px;
  line-height: 1.2;
  margin-bottom: 16px;
  color: var(--text-primary);
}
.fd-section-head h2 strong {
  font-weight: 700;
  color: var(--color-sage-700);
  position: relative;
  white-space: nowrap;
}
.fd-section-head h2 strong::after {
  content: "";
  position: absolute;
  left: -2px;
  right: -2px;
  bottom: 4px;
  height: 10px;
  background: rgba(123, 175, 142, 0.22);
  border-radius: 3px;
  z-index: -1;
}
.fd-section-head p {
  font-size: 1rem;
  color: var(--text-secondary);
  line-height: 1.75;
  max-width: 580px;
  margin: 0 auto;
}

.fd-chapter {
  display: grid;
  grid-template-columns: 1fr 1.15fr;
  gap: 80px;
  align-items: center;
  padding: 60px 0;
  border-bottom: 1px solid var(--border-subtle);
}
.fd-chapter:last-child { border-bottom: none; }
.fd-chapter.fd-reverse { grid-template-columns: 1.15fr 1fr; }
.fd-chapter.fd-reverse .fd-chapter-text { order: 2; }
.fd-chapter.fd-reverse .fd-chapter-visual { order: 1; }

.fd-chapter-num {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 1.2px;
  color: var(--color-sage-700);
  font-weight: 500;
  margin-bottom: 14px;
}
.fd-chapter-text h3 {
  font-size: clamp(1.6rem, 2.6vw, 2.1rem);
  font-weight: 700;
  letter-spacing: -0.6px;
  line-height: 1.2;
  margin-bottom: 18px;
  color: var(--text-primary);
}
.fd-chapter-text p {
  font-size: 1rem;
  color: var(--text-secondary);
  line-height: 1.75;
  margin-bottom: 14px;
}
.fd-chapter-text .fd-points {
  margin-top: 22px;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.fd-chapter-text .fd-points li {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  font-size: 0.94rem;
  color: var(--text-primary);
  line-height: 1.55;
}
.fd-chapter-text .fd-points i {
  color: var(--color-sage-600);
  margin-top: 3px;
  flex-shrink: 0;
  font-size: 1rem;
}

.fd-chapter-visual { position: relative; }
.fd-chapter-visual .fd-window {
  box-shadow:
    0 30px 60px -20px rgba(44, 42, 38, 0.18),
    0 12px 24px -10px rgba(44, 42, 38, 0.10);
}
.fd-chapter-visual .fd-window-body img {
  max-height: 520px;
  object-fit: cover;
  object-position: top left;
}

/* ── Callouts (alternative chapter visual) ────────────────── */
.fd-callouts {
  display: grid;
  gap: 14px;
}
.fd-callout {
  background: #fff;
  border: 1px solid var(--border-subtle);
  border-radius: 14px;
  padding: 20px 22px;
  display: flex;
  align-items: flex-start;
  gap: 16px;
  box-shadow: var(--shadow-xs);
  transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}
.fd-callout:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-sm);
}
.fd-callout-ico {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  background: var(--color-sage-100);
  color: var(--color-sage-700);
  display: grid;
  place-items: center;
  font-size: 18px;
  flex-shrink: 0;
}
.fd-callout-ico.fd-tone-lavender {
  background: var(--color-lavender-100);
  color: var(--color-lavender-700);
}
.fd-callout-ico.fd-tone-sand {
  background: var(--color-sand-100);
  color: var(--color-sand-700);
}
.fd-callout-ico.fd-tone-mint {
  background: var(--color-mint-100);
  color: var(--color-mint-700);
}
.fd-callout-ico.fd-tone-ember {
  background: var(--color-ember-100);
  color: var(--color-ember-700);
}
.fd-callout h4 {
  font-size: 0.98rem;
  font-weight: 700;
  margin-bottom: 4px;
  letter-spacing: -0.2px;
  color: var(--text-primary);
}
.fd-callout p {
  font-size: 0.86rem;
  color: var(--text-secondary);
  line-height: 1.6;
  margin: 0;
}

/* ── Inline pull-quote band ───────────────────────────────── */
.fd-quote {
  background: var(--color-sage-800);
  color: #fff;
  padding: 90px 0;
  position: relative;
  overflow: hidden;
}
.fd-quote::before {
  content: "";
  position: absolute;
  width: 360px;
  height: 360px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(168, 201, 181, 0.16) 0%, transparent 70%);
  top: -120px;
  right: -80px;
}
.fd-quote::after {
  content: "";
  position: absolute;
  width: 280px;
  height: 280px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(232, 213, 190, 0.14) 0%, transparent 70%);
  bottom: -100px;
  left: -60px;
}
.fd-quote .fd-container {
  max-width: 880px;
  text-align: center;
  position: relative;
  z-index: 1;
}
.fd-qmark {
  font-size: 4rem;
  font-family: var(--font-sans);
  font-weight: 300;
  line-height: 1;
  color: var(--color-sage-300);
  margin-bottom: -20px;
}
.fd-quote blockquote {
  font-size: clamp(1.4rem, 2.6vw, 1.9rem);
  font-weight: 300;
  line-height: 1.45;
  letter-spacing: -0.4px;
  margin-bottom: 28px;
  color: rgba(255, 255, 255, 0.95);
}
.fd-quote blockquote em {
  font-style: normal;
  font-weight: 600;
  color: #fff;
  background: linear-gradient(180deg, transparent 60%, rgba(255, 255, 255, 0.18) 60%, rgba(255, 255, 255, 0.18) 92%, transparent 92%);
  padding: 0 2px;
}
.fd-quote cite {
  font-style: normal;
  font-size: 0.86rem;
  color: rgba(255, 255, 255, 0.6);
  letter-spacing: 0.5px;
}

/* ── "其他功能" rail ──────────────────────────────────────── */
.fd-rail {
  padding: 100px 0;
  background: #fff;
  border-top: 1px solid var(--border-subtle);
}
.fd-rail-head {
  display: flex;
  justify-content: space-between;
  align-items: end;
  margin-bottom: 40px;
  gap: 24px;
  flex-wrap: wrap;
}
.fd-rail-head h2 {
  font-size: clamp(1.5rem, 2.4vw, 2rem);
  font-weight: 700;
  letter-spacing: -0.6px;
  color: var(--text-primary);
}
.fd-rail-head h2 strong {
  font-weight: 700;
  color: var(--color-sage-700);
  position: relative;
  white-space: nowrap;
}
.fd-rail-head h2 strong::after {
  content: "";
  position: absolute;
  left: -2px;
  right: -2px;
  bottom: 4px;
  height: 10px;
  background: rgba(123, 175, 142, 0.22);
  border-radius: 3px;
  z-index: -1;
}
.fd-rail-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 16px;
}
.fd-rail-card {
  background: var(--color-gray-50);
  border: 1px solid var(--border-subtle);
  border-radius: 14px;
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  transition: background var(--transition-normal),
              border-color var(--transition-normal),
              transform var(--transition-normal),
              box-shadow var(--transition-normal);
  color: inherit;
}
.fd-rail-card:hover {
  background: #fff;
  border-color: var(--color-sage-300);
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
}
.fd-rail-card .fd-rail-ico {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  background: var(--color-sage-100);
  color: var(--color-sage-700);
  display: grid;
  place-items: center;
  font-size: 16px;
}
.fd-rail-card .fd-rail-num {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.8px;
  color: var(--text-tertiary);
}
.fd-rail-card h4 {
  font-size: 0.96rem;
  font-weight: 700;
  letter-spacing: -0.2px;
  line-height: 1.3;
  color: var(--text-primary);
}
.fd-rail-card p {
  font-size: 0.8rem;
  color: var(--text-secondary);
  line-height: 1.55;
  margin: 0;
}
.fd-rail-card .fd-rail-arrow {
  margin-top: auto;
  font-size: 0.78rem;
  color: var(--color-sage-700);
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 4px;
  transition: gap var(--transition-fast);
}
.fd-rail-card:hover .fd-rail-arrow { gap: 8px; }

/* ── Bottom CTA ───────────────────────────────────────────── */
.fd-cta {
  padding: 100px 0 120px;
  text-align: center;
  background:
    radial-gradient(ellipse 800px 400px at 50% 0%, rgba(168, 201, 181, 0.18), transparent 60%),
    var(--bg-base);
}
.fd-cta h2 {
  font-size: clamp(1.8rem, 3.4vw, 2.6rem);
  font-weight: 700;
  letter-spacing: -1px;
  line-height: 1.2;
  margin-bottom: 20px;
  max-width: 720px;
  margin-left: auto;
  margin-right: auto;
  color: var(--text-primary);
}
.fd-cta h2 strong {
  font-weight: 700;
  color: var(--color-sage-700);
  position: relative;
  white-space: nowrap;
}
.fd-cta h2 strong::after {
  content: "";
  position: absolute;
  left: -2px;
  right: -2px;
  bottom: 4px;
  height: 10px;
  background: rgba(123, 175, 142, 0.22);
  border-radius: 3px;
  z-index: -1;
}
.fd-cta p {
  font-size: 1rem;
  color: var(--text-secondary);
  line-height: 1.7;
  max-width: 560px;
  margin: 0 auto 32px;
}
.fd-cta .fd-cta-row {
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 0;
}

/* ── Footer ───────────────────────────────────────────────── */
.fd-footer {
  background: var(--color-gray-900);
  color: rgba(255, 255, 255, 0.7);
  padding: 64px 0 28px;
}
.fd-footer-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 48px;
}
.fd-footer-brand { max-width: 640px; }
.fd-footer-brand h3 {
  color: #fff;
  font-size: 1.1rem;
  margin-bottom: 14px;
  font-weight: 700;
}
.fd-footer-brand p {
  font-size: 0.85rem;
  line-height: 1.65;
  color: rgba(255, 255, 255, 0.55);
  max-width: 360px;
}
.fd-footer-bottom {
  margin-top: 48px;
  padding-top: 24px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.78rem;
  color: rgba(255, 255, 255, 0.4);
  flex-wrap: wrap;
  gap: 16px;
}
.fd-footer-bottom a {
  color: rgba(255, 255, 255, 0.4);
  margin-left: 24px;
  transition: color var(--transition-fast);
}
.fd-footer-bottom a:hover { color: rgba(255, 255, 255, 0.8); }

/* ── Responsive ───────────────────────────────────────────── */
@media (max-width: 960px) {
  .fd-container { padding: 0 24px; }
  .fd-chapter,
  .fd-chapter.fd-reverse {
    grid-template-columns: 1fr;
    gap: 36px;
    padding: 50px 0;
  }
  .fd-chapter.fd-reverse .fd-chapter-text { order: 1; }
  .fd-chapter.fd-reverse .fd-chapter-visual { order: 2; }
  .fd-rail-grid { grid-template-columns: repeat(2, 1fr); }
  .fd-nav-links a:not(.fd-btn) { display: none; }
}
@media (max-width: 600px) {
  .fd-rail-grid { grid-template-columns: 1fr; }
  .fd-footer-bottom { flex-direction: column; align-items: flex-start; }
  .fd-footer-bottom a { margin-left: 0; margin-right: 16px; }
}

/* ── Dark mode overrides ──────────────────────────────────── */
[data-theme="dark"] .fd-nav {
  background: rgba(26, 25, 22, 0.82);
  border-bottom-color: var(--border-subtle);
}
[data-theme="dark"] .fd-hero::before {
  background:
    radial-gradient(ellipse 800px 460px at 90% 10%, rgba(140, 184, 156, 0.10), transparent 60%),
    radial-gradient(ellipse 700px 360px at 5% 90%, rgba(204, 168, 120, 0.08), transparent 60%);
}
[data-theme="dark"] .fd-hero-eyebrow,
[data-theme="dark"] .fd-chapter-num,
[data-theme="dark"] .fd-section-head .fd-kicker,
[data-theme="dark"] .fd-rail-card .fd-rail-arrow {
  color: var(--color-sage-300);
}
[data-theme="dark"] .fd-hero h1 strong,
[data-theme="dark"] .fd-section-head h2 strong,
[data-theme="dark"] .fd-cta h2 strong,
[data-theme="dark"] .fd-rail-head h2 strong {
  color: var(--color-sage-300);
}
[data-theme="dark"] .fd-hero h1 strong::after,
[data-theme="dark"] .fd-section-head h2 strong::after,
[data-theme="dark"] .fd-cta h2 strong::after,
[data-theme="dark"] .fd-rail-head h2 strong::after {
  background: rgba(140, 184, 156, 0.18);
}
[data-theme="dark"] .fd-stat .fd-stat-num {
  color: var(--color-sage-300);
}
[data-theme="dark"] .fd-stats {
  background: var(--bg-surface);
}
[data-theme="dark"] .fd-rail {
  background: var(--bg-surface);
}
[data-theme="dark"] .fd-rail-card {
  background: var(--bg-elevated);
}
[data-theme="dark"] .fd-rail-card:hover {
  background: var(--bg-base);
  border-color: var(--color-sage-500);
}
[data-theme="dark"] .fd-rail-card .fd-rail-ico {
  background: rgba(140, 184, 156, 0.12);
  color: var(--color-sage-300);
}
[data-theme="dark"] .fd-callout {
  background: var(--bg-elevated);
}
[data-theme="dark"] .fd-callout-ico {
  background: rgba(140, 184, 156, 0.12);
  color: var(--color-sage-300);
}
[data-theme="dark"] .fd-callout-ico.fd-tone-lavender {
  background: rgba(155, 114, 184, 0.14);
  color: var(--color-lavender-300);
}
[data-theme="dark"] .fd-callout-ico.fd-tone-sand {
  background: rgba(204, 168, 120, 0.14);
  color: var(--color-sand-300);
}
[data-theme="dark"] .fd-callout-ico.fd-tone-mint {
  background: rgba(79, 154, 120, 0.14);
  color: var(--color-mint-300);
}
[data-theme="dark"] .fd-callout-ico.fd-tone-ember {
  background: rgba(212, 137, 74, 0.14);
  color: var(--color-ember-300);
}
[data-theme="dark"] .fd-btn-light {
  background: var(--bg-elevated);
  color: var(--text-primary);
  border-color: var(--border-default);
}
[data-theme="dark"] .fd-btn-light:hover {
  border-color: var(--color-sage-400);
  color: var(--color-sage-300);
}
[data-theme="dark"] .fd-cta {
  background:
    radial-gradient(ellipse 800px 400px at 50% 0%, rgba(140, 184, 156, 0.10), transparent 60%),
    var(--bg-base);
}
[data-theme="dark"] .fd-window {
  border-color: var(--border-default);
}
[data-theme="dark"] .fd-footer {
  background: var(--bg-sunken);
  border-top: 1px solid var(--border-subtle);
}