<!doctype html>
<html lang="zh-CN">
  <head>
    <meta charset="UTF-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <title>Signal Template</title>

    <link rel="preconnect" href="https://fonts.googleapis.com" />
    <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin />
    <!--
      Signal style uses four font families:
        1. Source Serif 4     — editorial serif for headlines, mixed roman + italic
        2. DM Sans            — clean grotesque for body, stats numbers
        3. IBM Plex Mono      — condensed mono labels, chrome, kickers
        4. Noto Serif SC / Noto Sans SC — Chinese fallbacks for every role
    -->
    <link
      href="https://fonts.googleapis.com/css2?family=Source+Serif+4:ital,opsz,wght@0,8..60,300;0,8..60,400;0,8..60,600;0,8..60,700;1,8..60,300;1,8..60,400;1,8..60,600;1,8..60,700&family=DM+Sans:opsz,wght@9..40,300;9..40,400;9..40,500;9..40,600&family=IBM+Plex+Mono:wght@300;400;500&family=Noto+Serif+SC:wght@300;400;500;600;700&family=Noto+Sans+SC:wght@300;400;500&display=swap"
      rel="stylesheet"
    />

    <style>
      /* ╔══════════════════════════════════════════════════════════════════════╗
   ║  ZONE A · TOKENS  —  SIGNAL STYLE                                    ║
   ║                                                                      ║
   ║  Replace this block to change the visual style entirely.             ║
   ║  Every color, font, and size in this file reads from these vars.     ║
   ║  Never write raw hex values, font names, or px sizes outside here.   ║
   ╚══════════════════════════════════════════════════════════════════════╝ */
      :root {
        /* ── Palette ──────────────────────────────────────────────────────── */
        /* Dark navy: intelligence, authority, depth — the editorial tone */
        --c-bg: #1c2644;
        /* Slightly lighter navy for secondary dark surfaces */
        --c-bg-alt: #232f55;
        /* Warm cream: the light slide background, like aged paper */
        --c-bg-light: #f0ece3;
        /* Slightly cooler cream for secondary light surfaces */
        --c-bg-light-alt: #e6e0d4;

        /* Primary text on dark: warm off-white, never pure white */
        --c-fg: #e2dcd0;
        /* Secondary text on dark: muted blue-grey */
        --c-fg-2: #8a96a8;
        /* Tertiary / hint text on dark */
        --c-fg-3: #4e5a6e;
        /* Primary text on light: very dark navy near-black */
        --c-fg-light: #1a2030;
        /* Secondary text on light */
        --c-fg-light-2: #5a6270;
        /* Tertiary text on light */
        --c-fg-light-3: #9aa0a8;

        /* Accent: warm antique gold — the single hot colour; used for italic serif em */
        --c-accent: #c8a870;
        /* Dividers on dark: dark navy border */
        --c-border: #2e3d5c;
        /* Dividers on light: warm greige border */
        --c-border-light: #cac4b4;

        /* ── Typography ──────────────────────────────────────────────────── */
        /* Display + Heading: Source Serif 4 — editorial, authoritative.
           Mix roman and italic mid-sentence for the Signal look. */
        --f-display: "Source Serif 4", "Noto Serif SC", Georgia, serif;
        --f-heading: "Source Serif 4", "Noto Serif SC", Georgia, serif;
        /* Body: DM Sans — clean grotesque, steps back so the serif leads */
        --f-body: "DM Sans", "Noto Sans SC", system-ui, sans-serif;
        /* Mono: IBM Plex Mono — the condensed editorial timestamp */
        --f-mono: "IBM Plex Mono", "JetBrains Mono", monospace;

        /* ── Type Scale ───────────────────────────────────────────────────── */
        /* vw units keep all sizes proportional regardless of window width */
        --sz-display: 9.5vw; /* hero cover title — very large, commanding */
        --sz-h1: 5.2vw; /* chapter titles */
        --sz-h2: 3vw; /* slide headlines */
        --sz-h3: 1.9vw; /* sub-headlines, compare panel titles */
        --sz-lead: 1.4vw; /* lead paragraph */
        --sz-body: 1.05vw; /* body text, bullets */
        --sz-caption: 0.82vw; /* captions, footnotes */
        --sz-label: 0.7vw; /* chrome, kickers, tags, mono metadata */

        /* ── Spacing ─────────────────────────────────────────────────────── */
        --pad-x: 7.5vw; /* horizontal slide padding */
        --pad-y: 5.5vh; /* vertical slide padding */
        --gap-lg: 4vh; /* between major content sections */
        --gap-md: 2.5vh; /* between related elements */
        --gap-sm: 1.2vh; /* between tightly coupled elements */

        /* ── Motion ──────────────────────────────────────────────────────── */
        /* Slide pan: sharp in, sharp out — deliberate, not springy */
        --ease-slide: cubic-bezier(0.77, 0, 0.175, 1);
        --dur-slide: 0.85s;
        /* Element entrance: spring-y ease-out for content reveals */
        --ease-enter: cubic-bezier(0.16, 1, 0.3, 1);
        --dur-enter: 0.65s;
      }

      /* ╔══════════════════════════════════════════════════════════════════════╗
   ║  ZONE B · ENGINE — DO NOT MODIFY                                     ║
   ║                                                                      ║
   ║  Layout engine, transitions, animation system, navigation.           ║
   ║  Touching this breaks the mechanics.                                 ║
   ╚══════════════════════════════════════════════════════════════════════╝ */

      *,
      *::before,
      *::after {
        box-sizing: border-box;
        margin: 0;
        padding: 0;
      }
      html,
      body {
        width: 100%;
        height: 100%;
        overflow: hidden;
        background: var(--c-bg);
        -webkit-font-smoothing: antialiased;
      }

      /* Deck container — all slides sit side by side in one horizontal strip */
      #deck {
        display: flex;
        height: 100vh;
        transition: transform var(--dur-slide) var(--ease-slide);
        will-change: transform;
      }

      /* Slide base — each slide occupies exactly one full viewport */
      .slide {
        flex: 0 0 100vw;
        width: 100vw;
        height: 100vh;
        position: relative;
        padding: var(--pad-y) var(--pad-x);
        display: grid;
        grid-template-rows: auto 1fr auto;
        overflow: hidden;
      }
      .slide-body {
        min-height: 0;
      }

      /* Slide themes */
      .slide.dark {
        background: var(--c-bg);
        color: var(--c-fg);
      }
      .slide.light {
        background: var(--c-bg-light);
        color: var(--c-fg-light);
      }

      /* ── Animation system ─────────────────────────────────────────────── */
      /* Elements start invisible; become visible only when slide is active */
      [data-anim] {
        opacity: 0;
      }
      .slide.is-active [data-anim] {
        animation-duration: var(--dur-enter);
        animation-timing-function: var(--ease-enter);
        animation-fill-mode: forwards;
      }
      .slide.is-active [data-anim="fade-up"] {
        animation-name: kFadeUp;
      }
      .slide.is-active [data-anim="fade-in"] {
        animation-name: kFadeIn;
      }
      .slide.is-active [data-anim="reveal-right"] {
        animation-name: kRevealRight;
      }
      .slide.is-active [data-anim="reveal-left"] {
        animation-name: kRevealLeft;
      }
      .slide.is-active [data-anim="scale-in"] {
        animation-name: kScaleIn;
      }

      /* Staggered delays via data-delay attribute (0–6) */
      [data-delay="0"] {
        animation-delay: 0s;
      }
      [data-delay="1"] {
        animation-delay: 0.08s;
      }
      [data-delay="2"] {
        animation-delay: 0.18s;
      }
      [data-delay="3"] {
        animation-delay: 0.3s;
      }
      [data-delay="4"] {
        animation-delay: 0.44s;
      }
      [data-delay="5"] {
        animation-delay: 0.6s;
      }
      [data-delay="6"] {
        animation-delay: 0.78s;
      }

      @keyframes kFadeUp {
        from {
          opacity: 0;
          transform: translateY(28px);
        }
        to {
          opacity: 1;
          transform: none;
        }
      }
      @keyframes kFadeIn {
        from {
          opacity: 0;
        }
        to {
          opacity: 1;
        }
      }
      @keyframes kRevealRight {
        from {
          clip-path: inset(0 100% 0 0);
          opacity: 1;
        }
        to {
          clip-path: inset(0 0% 0 0);
          opacity: 1;
        }
      }
      @keyframes kRevealLeft {
        from {
          clip-path: inset(0 0 0 100%);
          opacity: 1;
        }
        to {
          clip-path: inset(0 0 0 0%);
          opacity: 1;
        }
      }
      @keyframes kScaleIn {
        from {
          opacity: 0;
          transform: scale(0.94);
        }
        to {
          opacity: 1;
          transform: none;
        }
      }

      /* ── Navigation UI ───────────────────────────────────────────────── */
      #nav-dots {
        position: fixed;
        bottom: 24px;
        left: 50%;
        transform: translateX(-50%);
        display: flex;
        gap: 7px;
        z-index: 100;
      }
      .nav-dot {
        width: 5px;
        height: 5px;
        border-radius: 50%;
        border: none;
        background: rgba(255, 255, 255, 0.22);
        cursor: pointer;
        transition:
          background 0.3s,
          transform 0.3s;
        padding: 0;
      }
      .nav-dot.is-active {
        background: rgba(255, 255, 255, 0.8);
        transform: scale(1.4);
      }

      #slide-counter {
        position: fixed;
        bottom: 20px;
        right: 28px;
        font-family: var(--f-mono);
        font-size: 10px;
        letter-spacing: 0.12em;
        color: rgba(255, 255, 255, 0.25);
        z-index: 100;
        user-select: none;
      }

      /* ╔══════════════════════════════════════════════════════════════════════╗
   ║  ZONE C · TYPOGRAPHY                                                 ║
   ╚══════════════════════════════════════════════════════════════════════╝ */

      .display {
        font-family: var(--f-display);
        font-size: var(--sz-display);
        font-weight: 700;
        line-height: 0.96;
        letter-spacing: -0.02em;
      }
      .h1 {
        font-family: var(--f-heading);
        font-size: var(--sz-h1);
        font-weight: 600;
        line-height: 1.08;
        letter-spacing: -0.01em;
      }
      .h2 {
        font-family: var(--f-heading);
        font-size: var(--sz-h2);
        font-weight: 600;
        line-height: 1.18;
      }
      .h3 {
        font-family: var(--f-heading);
        font-size: var(--sz-h3);
        font-weight: 500;
        line-height: 1.3;
      }
      .lead {
        font-family: var(--f-body);
        font-size: var(--sz-lead);
        font-weight: 400;
        line-height: 1.58;
      }
      .body {
        font-family: var(--f-body);
        font-size: var(--sz-body);
        font-weight: 400;
        line-height: 1.65;
      }
      .caption {
        font-family: var(--f-body);
        font-size: var(--sz-caption);
        font-weight: 400;
        line-height: 1.5;
      }
      .label {
        font-family: var(--f-mono);
        font-size: var(--sz-label);
        font-weight: 500;
        letter-spacing: 0.14em;
        text-transform: uppercase;
      }

      /* Signal signature: italic serif in accent gold for em tags inside headings */
      .display em,
      .h1 em,
      .h2 em,
      .h3 em {
        
        color: var(--c-accent);
      }
      .lead em {
        
        color: var(--c-accent);
        font-family: var(--f-heading);
      }

      .dark .muted {
        color: var(--c-fg-2);
      }
      .light .muted {
        color: var(--c-fg-light-2);
      }
      .accent {
        color: var(--c-accent);
      }

      /* ╔══════════════════════════════════════════════════════════════════════╗
   ║  ZONE D · CHROME + GRID TEXTURE                                      ║
   ╚══════════════════════════════════════════════════════════════════════╝ */

      /* Subtle grid overlay — the Signal visual fingerprint */
      .slide.dark::before {
        content: "";
        position: absolute;
        inset: 0;
        background-image:
          linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
          linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
        background-size: 80px 80px;
        pointer-events: none;
        z-index: 0;
      }
      .slide.dark > * {
        position: relative;
        z-index: 1;
      }

      /* Chrome (top bar) and footer */
      .slide-chrome,
      .slide-foot {
        display: flex;
        justify-content: space-between;
        align-items: center;
      }
      .slide-chrome {
        padding-bottom: var(--gap-sm);
        border-bottom: 1px solid var(--c-border);
        margin-bottom: var(--gap-md);
      }
      .slide-foot {
        padding-top: var(--gap-sm);
        border-top: 1px solid var(--c-border);
        margin-top: var(--gap-md);
      }
      .light .slide-chrome,
      .light .slide-foot {
        border-color: var(--c-border-light);
      }

      /* Special layouts that don't use chrome/foot */
      .slide--cover .slide-chrome,
      .slide--cover .slide-foot,
      .slide--chapter .slide-chrome,
      .slide--chapter .slide-foot,
      .slide--quote .slide-chrome,
      .slide--quote .slide-foot,
      .slide--end .slide-chrome,
      .slide--end .slide-foot {
        display: none;
      }

      /* ╔══════════════════════════════════════════════════════════════════════╗
   ║  ZONE E · LAYOUT PATTERNS                                            ║
   ╚══════════════════════════════════════════════════════════════════════╝ */

      /* 1. COVER ─────────────────────────────────────────────────────────── */
      .slide--cover {
        display: flex;
        flex-direction: column;
        justify-content: flex-end;
      }
      .cover-body {
        display: flex;
        flex-direction: column;
        flex: 1;
        justify-content: flex-end;
        gap: var(--gap-md);
      }
      .cover-meta {
        display: flex;
        justify-content: space-between;
        align-items: flex-end;
        margin-top: var(--gap-lg);
        padding-top: var(--gap-sm);
        border-top: 1px solid var(--c-border);
      }
      .light .cover-meta {
        border-color: var(--c-border-light);
      }

      /* 2. CHAPTER ────────────────────────────────────────────────────────── */
      .slide--chapter {
        display: flex;
        flex-direction: column;
        justify-content: center;
      }
      .chapter-num {
        font-family: var(--f-mono);
        font-size: var(--sz-label);
        letter-spacing: 0.2em;
        text-transform: uppercase;
        color: var(--c-accent);
        margin-bottom: var(--gap-md);
      }
      .chapter-rule {
        width: 36px;
        height: 1px;
        background: var(--c-accent);
        margin-bottom: var(--gap-md);
      }

      /* 3. STATEMENT ──────────────────────────────────────────────────────── */
      .slide--statement .statement-body {
        display: flex;
        flex-direction: column;
        justify-content: center;
        gap: var(--gap-md);
      }

      /* 4. SPLIT ──────────────────────────────────────────────────────────── */
      .slide--split .slide-body {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: calc(var(--pad-x) * 0.7);
        align-items: center;
      }
      .split-text {
        display: flex;
        flex-direction: column;
        gap: var(--gap-md);
      }
      .split-image {
        display: flex;
        flex-direction: column;
        gap: var(--gap-sm);
      }
      .split-image img {
        width: 100%;
        height: 55vh;
        object-fit: cover;
        display: block;
      }

      /* 5. STATS ───────────────────────────────────────────────────────────── */
      .slide--stats .slide-body {
        display: flex;
        flex-direction: column;
        justify-content: center;
        gap: var(--gap-lg);
      }
      .stats-grid {
        display: grid;
        grid-template-columns: repeat(3, 1fr);
        gap: 0;
      }
      .stats-grid.cols-4 {
        grid-template-columns: repeat(4, 1fr);
      }
      .stat-card {
        display: flex;
        flex-direction: column;
        gap: var(--gap-sm);
        padding: var(--gap-md) var(--gap-md) var(--gap-md) 0;
        border-top: 1px solid var(--c-border);
      }
      .light .stat-card {
        border-color: var(--c-border-light);
      }
      .stat-value {
        font-family: var(--f-display);
        font-size: 5.5vw;
        font-weight: 600;
        line-height: 1;
        color: var(--c-accent);
        letter-spacing: -0.02em;
      }
      .stat-label {
        font-family: var(--f-body);
        font-size: var(--sz-body);
        line-height: 1.5;
      }
      .stat-note {
        font-family: var(--f-mono);
        font-size: var(--sz-caption);
        letter-spacing: 0.05em;
        color: var(--c-fg-3);
      }
      .light .stat-note {
        color: var(--c-fg-light-3);
      }

      /* 6. QUOTE ───────────────────────────────────────────────────────────── */
      .slide--quote {
        display: flex;
        flex-direction: column;
        justify-content: center;
        padding: calc(var(--pad-y) * 1.2) calc(var(--pad-x) * 1.1);
      }
      .quote-mark {
        font-family: var(--f-display);
        font-size: 8vw;
        line-height: 0.6;
        color: var(--c-accent);
        margin-bottom: var(--gap-md);
        font-weight: 300;
      }
      .quote-text {
        font-family: var(--f-display);
        font-size: 3.6vw;
        font-weight: 400;
        line-height: 1.28;
        letter-spacing: -0.01em;
        max-width: 78%;
        margin-bottom: var(--gap-lg);
        
      }
      .quote-attr {
        display: flex;
        flex-direction: column;
        gap: 0.4vh;
      }

      /* 7. LIST ────────────────────────────────────────────────────────────── */
      .slide--list .slide-body {
        display: grid;
        grid-template-columns: 2fr 3fr;
        gap: calc(var(--pad-x) * 0.8);
        align-items: center;
      }
      .list-head {
        display: flex;
        flex-direction: column;
        gap: var(--gap-md);
        padding-top: var(--gap-sm);
      }
      .bullet-list {
        list-style: none;
        display: flex;
        flex-direction: column;
        gap: var(--gap-md);
      }
      .bullet-list li {
        display: grid;
        grid-template-columns: 1.2em 1fr;
        gap: 0.5em;
        font-family: var(--f-body);
        font-size: var(--sz-lead);
        line-height: 1.5;
      }
      .bullet-list li::before {
        content: "—";
        color: var(--c-accent);
        font-family: var(--f-mono);
      }
      .dark .bullet-list li {
        color: var(--c-fg);
      }
      .light .bullet-list li {
        color: var(--c-fg-light);
      }

      /* 8. COMPARE ─────────────────────────────────────────────────────────── */
      .slide--compare .slide-body {
        display: grid;
        grid-template-columns: 1fr 1fr;
        height: 100%;
      }
      .compare-panel {
        display: flex;
        flex-direction: column;
        gap: var(--gap-md);
        padding: var(--gap-md) 0;
      }
      .compare-panel.left {
        padding-right: calc(var(--pad-x) * 0.55);
        border-right: 1px solid var(--c-border);
      }
      .compare-panel.right {
        padding-left: calc(var(--pad-x) * 0.55);
      }
      .light .compare-panel.left {
        border-color: var(--c-border-light);
      }
      .compare-label {
        font-family: var(--f-mono);
        font-size: var(--sz-label);
        letter-spacing: 0.16em;
        text-transform: uppercase;
        padding-bottom: var(--gap-sm);
        border-bottom: 1px solid var(--c-border);
      }
      .compare-label.after {
        color: var(--c-accent);
      }
      .light .compare-label {
        border-color: var(--c-border-light);
      }

      /* 9. END ─────────────────────────────────────────────────────────────── */
      .slide--end {
        display: flex;
        flex-direction: column;
        justify-content: center;
        gap: var(--gap-md);
      }

      /* 10. EDITORIAL — Editorial newsletter style ─────────────────── */
      .slide--editorial {
        grid-template-rows: auto auto auto 1fr auto;
      }
      .editorial-stamp {
        font-family: var(--f-mono);
        font-size: var(--sz-label);
        letter-spacing: 0.22em;
        color: var(--c-fg-3);
      }
      .editorial-stamp .accent {
        color: var(--c-accent);
      }
      .editorial-hl {
        font-family: var(--f-heading);
        font-size: 2.75vw;
        font-weight: 600;
        line-height: 1.2;
        padding-bottom: var(--gap-md);
        border-bottom: 1px solid var(--c-border);
      }
      .editorial-hl em {
        
        color: var(--c-accent);
      }
      .light .editorial-hl {
        border-color: var(--c-border-light);
      }

      /* Two-column layout */
      .editorial-cols {
        display: grid;
        grid-template-columns: 1.15fr 0.85fr;
        gap: 0;
        min-height: 0;
      }
      .editorial-col-left {
        padding-right: calc(var(--pad-x) * 0.38);
        border-right: 1px solid var(--c-border);
        display: flex;
        flex-direction: column;
      }
      .editorial-col-right {
        padding-left: calc(var(--pad-x) * 0.38);
        display: flex;
        flex-direction: column;
        gap: var(--gap-md);
      }
      .light .editorial-col-left {
        border-color: var(--c-border-light);
      }
      .editorial-col-head {
        font-family: var(--f-mono);
        font-size: var(--sz-label);
        letter-spacing: 0.18em;
        color: var(--c-fg-3);
        padding-bottom: var(--gap-sm);
        border-bottom: 1px solid var(--c-border);
        margin-bottom: var(--gap-sm);
      }
      .light .editorial-col-head {
        border-color: var(--c-border-light);
        color: var(--c-fg-light-3);
      }

      /* Date log in left column */
      .log-list {
        display: flex;
        flex-direction: column;
        gap: 1.4vh;
        flex: 1;
      }
      .log-row {
        display: grid;
        grid-template-columns: 5em 1fr;
        gap: 1em;
        align-items: baseline;
      }
      .log-dt {
        font-family: var(--f-mono);
        font-size: var(--sz-caption);
        letter-spacing: 0.1em;
        color: var(--c-fg-3);
        white-space: nowrap;
      }
      .log-dd {
        font-family: var(--f-body);
        font-size: var(--sz-body);
        line-height: 1.52;
      }
      .log-dd em {
        
        color: var(--c-accent);
        font-family: var(--f-heading);
      }

      /* 2x2 mixed-font stat grid in right column */
      .stat-4 {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 0;
      }
      .stat-4-cell {
        border-top: 1px solid var(--c-border);
        padding: 1.2vh 0 1.5vh 0;
      }
      .stat-4-cell:nth-child(even) {
        border-left: 1px solid var(--c-border);
        padding-left: 1.8vh;
      }
      .light .stat-4-cell {
        border-color: var(--c-border-light);
      }
      /* Value: roman grotesque number (DM Sans 700) + italic serif suffix (Source Serif 4 italic) */
      .stat-4-val {
        font-family: var(--f-body);
        font-size: 2.5vw;
        font-weight: 700;
        line-height: 1;
        color: var(--c-fg);
        margin-bottom: 0.5vh;
        letter-spacing: -0.02em;
      }
      .stat-4-val em {
        font-family: var(--f-display);
        
        color: var(--c-accent);
        font-weight: 600;
      }
      .stat-4-label {
        font-family: var(--f-mono);
        font-size: 0.62vw;
        letter-spacing: 0.07em;
        color: var(--c-fg-3);
        line-height: 1.4;
        text-transform: uppercase;
      }
      .light .stat-4-label {
        color: var(--c-fg-light-3);
      }

      /* Analysis line below columns */
      .editorial-analysis {
        font-family: var(--f-body);
        font-size: 0.88vw;
        line-height: 1.72;
        color: var(--c-fg-2);
        border-top: 1px solid var(--c-border);
        padding-top: var(--gap-sm);
      }
      .light .editorial-analysis {
        border-color: var(--c-border-light);
        color: var(--c-fg-light-2);
      }

      /* 11. DENSE — Two-column editorial text ─────────────────────────────── */
      .slide--dense {
        grid-template-rows: auto auto 1fr auto;
      }
      .dense-hl {
        font-family: var(--f-heading);
        font-size: 2.4vw;
        font-weight: 600;
        line-height: 1.2;
        padding-bottom: var(--gap-md);
        border-bottom: 1px solid var(--c-border);
        max-width: 88%;
      }
      .dense-hl em {
        
        color: var(--c-accent);
      }
      .light .dense-hl {
        border-color: var(--c-border-light);
      }
      .dense-cols {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: calc(var(--pad-x) * 0.45);
        padding-top: var(--gap-md);
        min-height: 0;
      }
      .dense-col h4 {
        font-family: var(--f-mono);
        font-size: var(--sz-label);
        letter-spacing: 0.16em;
        color: var(--c-fg-3);
        margin-bottom: var(--gap-sm);
        padding-bottom: var(--gap-sm);
        border-bottom: 1px solid var(--c-border);
      }
      .light .dense-col h4 {
        border-color: var(--c-border-light);
        color: var(--c-fg-light-3);
      }
      .dense-col p {
        font-family: var(--f-body);
        font-size: var(--sz-body);
        line-height: 1.72;
        color: var(--c-fg-2);
        margin-bottom: 1.4vh;
      }
      .light .dense-col p {
        color: var(--c-fg-light-2);
      }
      .dense-col p:last-child {
        margin-bottom: 0;
      }
      .dense-col p em {
        
        color: var(--c-accent);
        font-family: var(--f-heading);
      }

      /* 12. FULLBLEED ──────────────────────────────────────────────────────── */
      .slide--fullbleed {
        padding: 0;
        display: block;
        position: relative;
      }
      .slide--fullbleed::before {
        display: none !important;
      }
      .fb-img {
        position: absolute;
        inset: 0;
        width: 100%;
        height: 100%;
        object-fit: cover;
        display: block;
      }
      .fb-content {
        position: absolute;
        bottom: 0;
        left: 0;
        right: 0;
        padding: var(--pad-y) var(--pad-x);
        background: linear-gradient(
          to bottom,
          transparent 0%,
          rgba(15, 20, 36, 0.9) 35%
        );
        display: flex;
        flex-direction: column;
        gap: var(--gap-sm);
      }

      /* ╔══════════════════════════════════════════════════════════════════════╗
   ║  ZONE F · COMPONENTS                                                 ║
   ╚══════════════════════════════════════════════════════════════════════╝ */

      /* Decorative rule lines */
      .rule {
        width: 36px;
        height: 1px;
        background: var(--c-accent);
      }
      .rule.full {
        width: 100%;
        background: var(--c-border);
      }
      .light .rule.full {
        background: var(--c-border-light);
      }

      /* Kicker label (above headlines) */
      .kicker {
        font-family: var(--f-mono);
        font-size: var(--sz-label);
        letter-spacing: 0.14em;
        text-transform: uppercase;
        color: var(--c-accent);
      }

      /* Outlined tag */
      .tag {
        display: inline-block;
        font-family: var(--f-mono);
        font-size: var(--sz-label);
        letter-spacing: 0.14em;
        text-transform: uppercase;
        color: var(--c-accent);
        border: 1px solid var(--c-accent);
        padding: 0.3em 0.8em;
        line-height: 1;
      }

      /* Image caption */
      .img-caption {
        font-family: var(--f-mono);
        font-size: var(--sz-caption);
        letter-spacing: 0.04em;
        opacity: 0.5;
        margin-top: 0.8vh;
      }
      /* ── CHART ─────────────────────────────────────────────────────────── */
      .slide--chart .slide-body {
        display: flex;
        flex-direction: column;
        gap: var(--gap-md);
        min-height: 0;
      }
      .chart-header {
        display: flex;
        justify-content: space-between;
        align-items: baseline;
        flex-shrink: 0;
      }
      .chart-wrapper {
        flex: 1;
        display: flex;
        flex-direction: column;
        justify-content: flex-end;
        min-height: 0;
      }
      .bar-track {
        height: 30vh;
        display: flex;
        align-items: flex-end;
        gap: 4vw;
        border-left: 1px solid var(--c-border);
        padding-left: 0.5vw;
      }
      .light .bar-track {
        border-color: var(--c-border-light);
      }
      .bar-col {
        flex: 1;
        display: flex;
        flex-direction: column;
        align-items: flex-start;
        justify-content: flex-end;
        gap: 1vh;
        height: 100%;
      }
      .bar-fill {
        width: 100%;
        background: var(--c-fg-3);
      }
      .bar-fill.accent {
        background: var(--c-accent);
      }
      .light .bar-fill {
        background: var(--c-fg-light-3);
      }
      .light .bar-fill.accent {
        background: var(--c-accent);
      }
      .bar-x-label {
        font-family: var(--f-mono);
        font-size: var(--sz-caption);
        letter-spacing: 0.1em;
        color: var(--c-fg-3);
        white-space: nowrap;
        text-transform: uppercase;
      }
      .light .bar-x-label {
        color: var(--c-fg-light-3);
      }
      .bar-val {
        font-family: var(--f-body);
        font-size: var(--sz-body);
        font-weight: 500;
        color: var(--c-fg-2);
      }
      .bar-val.hi {
        color: var(--c-accent);
        font-weight: 600;
      }
      .light .bar-val {
        color: var(--c-fg-light-2);
      }
      .chart-baseline {
        height: 1px;
        background: var(--c-border);
        flex-shrink: 0;
        margin-top: 1px;
      }
      .light .chart-baseline {
        background: var(--c-border-light);
      }
      .chart-source {
        flex-shrink: 0;
        font-family: var(--f-mono);
        font-size: var(--sz-caption);
        color: var(--c-fg-3);
        letter-spacing: 0.06em;
        margin-top: var(--gap-sm);
      }
      .light .chart-source {
        color: var(--c-fg-light-3);
      }

      /* ── DIAGRAM ────────────────────────────────────────────────────────── */
      .slide--diagram .slide-body {
        display: flex;
        flex-direction: column;
        justify-content: center;
        gap: var(--gap-lg);
        min-height: 0;
      }
      .flow {
        display: flex;
        align-items: stretch;
        gap: 0;
      }
      .flow-step {
        flex: 1;
        display: flex;
        flex-direction: column;
        gap: var(--gap-sm);
        padding-right: calc(var(--pad-x) * 0.35);
      }
      .flow-num {
        font-family: var(--f-display);
        font-size: 4.5vw;
        font-weight: 700;
        line-height: 1;
        color: var(--c-accent);
        letter-spacing: -0.02em;
        
      }
      .flow-title {
        font-family: var(--f-heading);
        font-size: var(--sz-h3);
        font-weight: 600;
        line-height: 1.15;
        color: var(--c-fg);
      }
      .light .flow-title {
        color: var(--c-fg-light);
      }
      .flow-desc {
        font-family: var(--f-body);
        font-size: var(--sz-body);
        color: var(--c-fg-2);
        line-height: 1.62;
      }
      .light .flow-desc {
        color: var(--c-fg-light-2);
      }
      .flow-arrow {
        display: flex;
        align-items: flex-start;
        padding-top: 1em;
        padding-right: calc(var(--pad-x) * 0.35);
        font-size: 2vw;
        color: var(--c-border);
        flex-shrink: 0;
      }
      .light .flow-arrow {
        color: var(--c-border-light);
      }

      /* ── PIE / DONUT CHART ──────────────────────────────────────────────── */
      .slide--pie .slide-body {
        display: flex;
        flex-direction: column;
        gap: var(--gap-md);
        min-height: 0;
      }
      .pie-row {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: calc(var(--pad-x) * 0.7);
        align-items: center;
        flex: 1;
        min-height: 0;
      }
      .pie-donut {
        width: min(26vw, 42vh);
        height: min(26vw, 42vh);
        border-radius: 50%;
        position: relative;
        flex-shrink: 0;
        justify-self: center;
      }
      .pie-donut::after {
        content: "";
        position: absolute;
        inset: 22%;
        border-radius: 50%;
        background: var(--c-bg);
      }
      .pie-legend {
        display: flex;
        flex-direction: column;
        gap: var(--gap-md);
      }
      .pie-item {
        display: grid;
        grid-template-columns: 0.8em 1fr auto;
        gap: 1em;
        align-items: center;
      }
      .pie-swatch {
        width: 0.8em;
        height: 0.8em;
        border-radius: 2px;
        flex-shrink: 0;
      }
      .pie-item-label {
        font-family: var(--f-body);
        font-size: var(--sz-lead);
        line-height: 1.4;
      }
      .pie-item-val {
        font-family: var(--f-mono);
        font-size: var(--sz-body);
        font-weight: 500;
        letter-spacing: 0.06em;
        color: var(--c-accent);
      }
      .pie-total {
        margin-top: var(--gap-sm);
        padding-top: var(--gap-sm);
        border-top: 1px solid var(--c-border);
        font-family: var(--f-mono);
        font-size: var(--sz-label);
        letter-spacing: 0.1em;
        color: var(--c-fg-3);
      }
      .light .pie-donut::after {
        background: var(--c-bg-light);
      }
      .light .pie-total {
        border-color: var(--c-border-light);
        color: var(--c-fg-light-3);
      }

      /* ── PYRAMID ─────────────────────────────────────────────────────────── */
      .slide--pyramid .slide-body {
        display: flex;
        flex-direction: column;
        justify-content: center;
        gap: var(--gap-md);
        min-height: 0;
      }
      .pyramid {
        display: flex;
        flex-direction: column;
        gap: 3px;
        align-items: center;
      }
      .pyr-level {
        display: flex;
        justify-content: space-between;
        align-items: center;
        padding: 1.3vh 2.5vw;
        border-left: 3px solid var(--c-accent);
        transition: width 0.3s;
      }
      .pyr-level:nth-child(1) {
        background: color-mix(in srgb, var(--c-accent) 70%, var(--c-bg));
        width: 38%;
      }
      .pyr-level:nth-child(2) {
        background: color-mix(in srgb, var(--c-accent) 45%, var(--c-bg));
        width: 54%;
      }
      .pyr-level:nth-child(3) {
        background: color-mix(in srgb, var(--c-accent) 27%, var(--c-bg));
        width: 70%;
      }
      .pyr-level:nth-child(4) {
        background: color-mix(in srgb, var(--c-accent) 15%, var(--c-bg));
        width: 86%;
      }
      .pyr-level:nth-child(5) {
        background: color-mix(in srgb, var(--c-accent) 8%, var(--c-bg));
        width: 100%;
      }
      .pyr-name {
        font-family: var(--f-heading);
        font-size: var(--sz-h3);
        font-weight: 500;
        line-height: 1.2;
      }
      .pyr-desc {
        font-family: var(--f-body);
        font-size: var(--sz-body);
        color: var(--c-fg-2);
        text-align: right;
        max-width: 55%;
        line-height: 1.4;
      }

      /* ── VERTICAL TIMELINE ───────────────────────────────────────────────── */
      .slide--vtimeline {
        grid-template-rows: auto auto 1fr auto;
      }
      .vt-hl {
        font-family: var(--f-heading);
        font-size: var(--sz-h2);
        font-weight: 600;
        padding-bottom: var(--gap-md);
        border-bottom: 1px solid var(--c-border);
      }
      .light .vt-hl {
        border-color: var(--c-border-light);
      }
      .vtimeline {
        display: grid;
        grid-template-columns: 8em 1px 1fr;
        gap: 0;
        min-height: 0;
        padding-top: var(--gap-md);
      }
      .vt-date {
        font-family: var(--f-mono);
        font-size: var(--sz-caption);
        letter-spacing: 0.08em;
        color: var(--c-fg-3);
        text-align: right;
        padding: 0 1.5vw 3.5vh 0;
        line-height: 1.4;
      }
      .light .vt-date {
        color: var(--c-fg-light-3);
      }
      .vt-spine {
        background: var(--c-border);
        position: relative;
      }
      .light .vt-spine {
        background: var(--c-border-light);
      }
      .vt-spine::before {
        content: "";
        position: absolute;
        top: 0.25em;
        left: -4px;
        width: 9px;
        height: 9px;
        border-radius: 50%;
        background: var(--c-accent);
      }
      .vt-content {
        padding: 0 0 3.5vh 1.5vw;
      }
      .vt-title {
        font-family: var(--f-heading);
        font-size: var(--sz-h3);
        font-weight: 500;
        margin-bottom: 0.6vh;
        line-height: 1.25;
      }
      .vt-body {
        font-family: var(--f-body);
        font-size: var(--sz-body);
        color: var(--c-fg-2);
        line-height: 1.65;
      }
      .light .vt-body {
        color: var(--c-fg-light-2);
      }
      .vt-body em {
        
        color: var(--c-accent);
        font-family: var(--f-heading);
      }

      /* ── CYCLE PROCESS ───────────────────────────────────────────────────── */
      .slide--cycle .slide-body {
        display: flex;
        flex-direction: column;
        gap: var(--gap-md);
        min-height: 0;
      }
      .cycle-grid {
        display: grid;
        grid-template-columns: 1fr 3em 1fr;
        grid-template-rows: 1fr 3em 1fr;
        gap: var(--gap-sm);
        flex: 1;
        min-height: 0;
        align-items: center;
      }
      .cycle-step {
        display: flex;
        flex-direction: column;
        gap: var(--gap-sm);
        padding: var(--gap-md);
        border-top: 2px solid var(--c-accent);
      }
      .cycle-num {
        font-family: var(--f-display);
        font-size: 3.2vw;
        font-weight: 700;
        color: var(--c-accent);
        line-height: 1;
        letter-spacing: -0.02em;
      }
      .cycle-title {
        font-family: var(--f-heading);
        font-size: var(--sz-h3);
        font-weight: 500;
        line-height: 1.2;
      }
      .cycle-desc {
        font-family: var(--f-body);
        font-size: var(--sz-body);
        color: var(--c-fg-2);
        line-height: 1.6;
      }
      .light .cycle-desc {
        color: var(--c-fg-light-2);
      }
      .cycle-arrow {
        color: var(--c-fg-3);
        font-size: 1.8vw;
        display: flex;
        align-items: center;
        justify-content: center;
      }
      .light .cycle-arrow {
        color: var(--c-fg-light-3);
      }
      .cycle-corner {
        display: flex;
        align-items: center;
        justify-content: center;
        color: var(--c-fg-3);
        font-size: 1.3vw;
      }
    </style>
  </head>

  <body>
    <!-- NAV DOTS: generated by JS -->
    <nav id="nav-dots"></nav>
    <!-- SLIDE COUNTER: generated by JS -->
    <div id="slide-counter"></div>

    <!-- ═══════════════════════════════════════════════════════════════════════
         DECK — all slides live here, side by side
         ═══════════════════════════════════════════════════════════════════════ -->
    <div id="deck">
      <!-- ═══════ SLIDE 1 · COVER dark ══════════════════════════════════════ -->
      <section class="slide dark slide--cover">
        <div class="cover-body">
          <!-- Session stamp: condensed mono label top-left -->
          <div class="label muted" data-anim="fade-in" data-delay="0">
            [Period] · [Audience] · [Deck Type]
          </div>

          <!-- Gold rule reveal -->
          <div class="rule" data-anim="reveal-right" data-delay="1"></div>

          <!-- Display title: roman + italic accent -->
          <h1 class="display" data-anim="fade-up" data-delay="2">
            [Presentation]<br />Title
          </h1>

          <!-- Subtitle: italic serif -->
          <p
            class="lead"
            style="
              
              font-family: var(--f-heading);
              max-width: 52%;
              color: var(--c-fg-2);
            "
            data-anim="fade-up"
            data-delay="3"
          >
            A short description of the deck, its purpose, and the decision it
            supports.
          </p>

          <!-- Meta bar: name left, version right -->
          <div class="cover-meta" data-anim="fade-in" data-delay="4">
            <span class="label muted">[Author Name] · [Role]</span>
            <span class="label muted">[Version] · [Status] · [Period]</span>
          </div>
        </div>
      </section>

      <!-- ═══════ SLIDE 2 · CHAPTER dark ════════════════════════════════════ -->
      <section class="slide dark slide--chapter">
        <!-- Chapter number: mono label -->
        <div class="chapter-num" data-anim="fade-in" data-delay="0">
          01 · [Section]
        </div>
        <!-- Gold rule -->
        <div class="chapter-rule" data-anim="reveal-right" data-delay="1"></div>
        <!-- Chapter title -->
        <h1
          class="h1"
          style="max-width: 62%; margin-bottom: var(--gap-md)"
          data-anim="fade-up"
          data-delay="2"
        >
          Section headline with one emphasized idea
        </h1>
        <!-- Description -->
        <p
          class="lead muted"
          style="max-width: 50%"
          data-anim="fade-up"
          data-delay="3"
        >
          A brief setup sentence that explains what this section covers and why
          it matters.
        </p>
      </section>

      <!-- ═══════ SLIDE 3 · STATEMENT dark ══════════════════════════════════ -->
      <section class="slide dark slide--statement">
        <!-- Chrome bar -->
        <div class="slide-chrome">
          <span class="label muted" data-anim="fade-in" data-delay="0"
            >[Slide Label]</span
          >
          <span class="label muted" data-anim="fade-in" data-delay="0">03</span>
        </div>

        <div class="slide-body">
          <div class="statement-body">
            <!-- Kicker -->
            <div class="kicker" data-anim="fade-in" data-delay="1">
              [Kicker Label]
            </div>
            <!-- Gold rule -->
            <div class="rule" data-anim="reveal-right" data-delay="2"></div>
            <!-- Main statement -->
            <h1
              class="h1"
              style="max-width: 68%"
              data-anim="fade-up"
              data-delay="3"
            >
              A concise statement that frames the main argument in one
              memorable sentence.
            </h1>
          </div>
        </div>

        <div class="slide-foot">
          <span class="label muted"></span>
          <span class="label muted">03 / 18</span>
        </div>
      </section>

      <!-- ═══════ SLIDE 4 · SPLIT light ═════════════════════════════════════ -->
      <section class="slide light slide--split">
        <!-- Chrome bar -->
        <div class="slide-chrome">
          <span
            class="label"
            style="color: var(--c-fg-light-2)"
            data-anim="fade-in"
            data-delay="0"
            >[Category] · [Topic]</span
          >
          <span
            class="label"
            style="color: var(--c-fg-light-2)"
            data-anim="fade-in"
            data-delay="0"
            >04</span
          >
        </div>

        <div class="slide-body">
          <!-- Left: text content -->
          <div class="split-text" data-anim="fade-up" data-delay="1">
            <div class="kicker">[Kicker Label]</div>
            <h2 class="h2">
              Main headline for a split-layout slide
            </h2>
            <p class="lead" style="color: var(--c-fg-light-2)">
              Use this paragraph for the core explanation. Keep it short,
              specific, and easy to scan.
            </p>
            <!-- Bullet list -->
            <ul class="bullet-list" style="font-size: var(--sz-body)">
              <li>First supporting point with concise context</li>
              <li>Second supporting point with concise context</li>
              <li>Third supporting point with concise context</li>
            </ul>
          </div>

          <!-- Right: image placeholder -->
          <div
            class="split-image"
            data-anim="fade-in"
            data-delay="3"
            style="display: flex; flex-direction: column; gap: var(--gap-sm)"
          >
            <div
              style="
                flex: 1;
                background: var(--c-bg-light-alt);
                border: 1px solid var(--c-border-light);
                display: flex;
                align-items: center;
                justify-content: center;
                min-height: 28vh;
              "
            >
              <span
                style="
                  font-family: var(--f-mono);
                  font-size: var(--sz-label);
                  color: var(--c-fg-light-3);
                  letter-spacing: 0.12em;
                  text-transform: uppercase;
                "
                >Image Placeholder</span
              >
            </div>
            <p class="img-caption" style="color: var(--c-fg-light-3)">
              [Caption for image]
            </p>
          </div>
        </div>

        <div class="slide-foot">
          <span class="label" style="color: var(--c-fg-light-2)"></span>
          <span class="label" style="color: var(--c-fg-light-2)">04 / 18</span>
        </div>
      </section>

      <!-- ═══════ SLIDE 5 · STATS dark ═══════════════════════════════════════ -->
      <section class="slide dark slide--stats">
        <!-- Chrome bar -->
        <div class="slide-chrome">
          <span class="label muted" data-anim="fade-in" data-delay="0"
            >[Category] · [Metrics]</span
          >
          <span class="label muted" data-anim="fade-in" data-delay="0">05</span>
        </div>

        <div class="slide-body">
          <!-- Headline above stats -->
          <h2 class="h2" data-anim="fade-up" data-delay="1">
            Three metrics that summarize the current state
          </h2>

          <!-- 3-column stat grid -->
          <div class="stats-grid" data-anim="fade-up" data-delay="2">
            <div class="stat-card">
              <div class="stat-value">[X]%</div>
              <div class="stat-label">
                Short description of the first metric and its meaning
              </div>
              <div class="stat-note">[Source] · [Date]</div>
            </div>
            <div class="stat-card">
              <div class="stat-value">[Y]×</div>
              <div class="stat-label">
                Short description of the second metric and its meaning
              </div>
              <div class="stat-note">[Method or source]</div>
            </div>
            <div class="stat-card">
              <div class="stat-value">[Z]</div>
              <div class="stat-label">
                Short description of the third metric and its meaning
              </div>
              <div class="stat-note">[Benchmark]</div>
            </div>
          </div>
        </div>

        <div class="slide-foot">
          <span class="label muted"></span>
          <span class="label muted">05 / 18</span>
        </div>
      </section>

      <!-- ═══════ SLIDE 6 · QUOTE dark ═══════════════════════════════════════ -->
      <section class="slide dark slide--quote">
        <!-- Opening quote mark in accent gold -->
        <div class="quote-mark" data-anim="fade-in" data-delay="0">"</div>

        <!-- Quote body: large italic serif -->
        <p class="quote-text" data-anim="fade-up" data-delay="1">
          A short pull quote or highlighted observation can sit here.
        </p>

        <!-- Attribution -->
        <div class="quote-attr" data-anim="fade-up" data-delay="3">
          <span class="label accent">[Source Name]</span>
          <span class="label muted">[Source Role] · [Context]</span>
        </div>
      </section>

      <!-- ═══════ SLIDE 7 · LIST light ═══════════════════════════════════════ -->
      <section class="slide light slide--list">
        <!-- Chrome bar -->
        <div class="slide-chrome">
          <span
            class="label"
            style="color: var(--c-fg-light-2)"
            data-anim="fade-in"
            data-delay="0"
            >[Framework]</span
          >
          <span
            class="label"
            style="color: var(--c-fg-light-2)"
            data-anim="fade-in"
            data-delay="0"
            >07</span
          >
        </div>

        <div class="slide-body">
          <!-- Left column: intro -->
          <div class="list-head" data-anim="fade-up" data-delay="1">
            <div class="kicker">[Kicker Label]</div>
            <h2 class="h2">
              Five principles that shape the recommended approach
            </h2>
            <p class="body" style="color: var(--c-fg-light-2)">
              Use this sentence to introduce the list and clarify how the
              points should be read.
            </p>
          </div>

          <!-- Right column: bullets -->
          <ul class="bullet-list" data-anim="fade-up" data-delay="2">
            <li>
              First principle written as a complete sentence
            </li>
            <li>
              Second principle written as a complete sentence
            </li>
            <li>
              Third principle written as a complete sentence
            </li>
            <li>Fourth principle written as a complete sentence</li>
            <li>Fifth principle written as a complete sentence</li>
          </ul>
        </div>

        <div class="slide-foot">
          <span class="label" style="color: var(--c-fg-light-2)"></span>
          <span class="label" style="color: var(--c-fg-light-2)">07 / 18</span>
        </div>
      </section>

      <!-- ═══════ SLIDE 8 · COMPARE dark ════════════════════════════════════ -->
      <section class="slide dark slide--compare">
        <!-- Chrome bar -->
        <div class="slide-chrome">
          <span class="label muted" data-anim="fade-in" data-delay="0"
            >[Before] · [After]</span
          >
          <span class="label muted" data-anim="fade-in" data-delay="0">08</span>
        </div>

        <div class="slide-body">
          <!-- Left panel: Before -->
          <div class="compare-panel left" data-anim="fade-up" data-delay="1">
            <div class="compare-label">[Current State]</div>
            <h3 class="h3">
              Headline describing the current state
            </h3>
            <p class="lead" style="color: var(--c-fg-2)">
              Describe the current approach, the friction it creates, and why it
              needs to change.
            </p>
            <ul class="bullet-list" style="font-size: var(--sz-body)">
              <li>Current limitation or source of friction</li>
              <li>Current limitation or source of friction</li>
              <li>Current limitation or source of friction</li>
            </ul>
          </div>

          <!-- Right panel: After -->
          <div class="compare-panel right" data-anim="fade-up" data-delay="2">
            <div class="compare-label after">[Proposed State]</div>
            <h3 class="h3">
              Headline describing the proposed approach
            </h3>
            <p class="lead" style="color: var(--c-fg-2)">
              Describe the improved approach, the behavior it enables, and the
              outcome it supports.
            </p>
            <ul class="bullet-list" style="font-size: var(--sz-body)">
              <li>Expected improvement or capability</li>
              <li>Expected improvement or capability</li>
              <li>Expected improvement or capability</li>
            </ul>
          </div>
        </div>

        <div class="slide-foot">
          <span class="label muted"></span>
          <span class="label muted">08 / 18</span>
        </div>
      </section>

      <!-- ═══════ SLIDE 9 · EDITORIAL dark ══════════════════════════════════
           The signature dense layout — editorial newsletter style
           Chrome: condensed mono section marker
           Headline: roman serif + italic gold word
           Left col: date log with em-tagged italic entries
           Right col: 2x2 mixed-font stat grid (DM Sans number + Source Serif italic suffix)
           Bottom: analysis line + sources footer
           ══════════════════════════════════════════════════════════════════ -->
      <section class="slide dark slide--editorial">
        <!-- Chrome: section marker left, issue ID right -->
        <div class="slide-chrome">
          <span class="label muted" data-anim="fade-in" data-delay="0"
            >— § [Section]</span
          >
          <span class="label muted" data-anim="fade-in" data-delay="0"
            >[Deck Name] · [Period] · <span class="accent">[Year]</span></span
          >
        </div>

        <!-- Week stamp: condensed mono with accent number -->
        <div class="editorial-stamp" data-anim="fade-in" data-delay="1">
          [Issue] <span class="accent">[N]</span> · [Review Label]
        </div>

        <!-- Headline: roman serif + single italic gold word -->
        <h2 class="editorial-hl" data-anim="fade-up" data-delay="2">
          Editorial headline with one accented word for emphasis.
        </h2>

        <!-- Two-column body -->
        <div class="editorial-cols" data-anim="fade-up" data-delay="3">
          <!-- Left: date log -->
          <div class="editorial-col-left">
            <div class="editorial-col-head">[Sequence]</div>
            <div class="log-list">
              <div class="log-row">
                <span class="log-dt">[Date]</span>
                <span class="log-dd"
                  >First event or observation appears.
                  Short implication.</span
                >
              </div>
              <div class="log-row">
                <span class="log-dt">[Date]</span>
                <span class="log-dd"
                  >Second event or observation appears.
                  Short implication.</span
                >
              </div>
              <div class="log-row">
                <span class="log-dt">[Date]</span>
                <span class="log-dd"
                  >Third event or observation appears.
                  Short implication.</span
                >
              </div>
              <div class="log-row">
                <span class="log-dt">[Date]</span>
                <span class="log-dd"
                  >Fourth event adds context. A key pattern holds
                  across the data.</span
                >
              </div>
              <div class="log-row">
                <span class="log-dt">[Date]</span>
                <span class="log-dd"
                  >Fifth event confirms part of the hypothesis and challenges
                  another assumption.</span
                >
              </div>
              <div class="log-row">
                <span class="log-dt">[Date]</span>
                <span class="log-dd"
                  >Final event closes the sequence and clarifies the
                  next question.</span
                >
              </div>
            </div>
          </div>

          <!-- Right: 2x2 mixed-font stat grid -->
          <div class="editorial-col-right">
            <div class="editorial-col-head">[Key Readings]</div>
            <!-- 2x2 grid: roman grotesque number + italic serif suffix in gold -->
            <div class="stat-4">
              <div class="stat-4-cell">
                <div class="stat-4-val">[A]%</div>
                <div class="stat-4-label">Metric label · [Segment] · [Period]</div>
              </div>
              <div class="stat-4-cell">
                <div class="stat-4-val">[B]x</div>
                <div class="stat-4-label">
                  Metric label vs. comparison period
                </div>
              </div>
              <div class="stat-4-cell">
                <div class="stat-4-val">[C]pt</div>
                <div class="stat-4-label">
                  Metric label · [Segment]
                </div>
              </div>
              <div class="stat-4-cell">
                <div class="stat-4-val">+[D]</div>
                <div class="stat-4-label">
                  Net change across selected group
                </div>
              </div>
            </div>
          </div>
        </div>

        <!-- Analysis line below the columns -->
        <div class="editorial-analysis" data-anim="fade-in" data-delay="4">
          Use this analysis line to synthesize the sequence above. Explain what
          changed, why it matters, and what decision should follow.
        </div>

        <!-- Footer: sources left, page right -->
        <div class="slide-foot">
          <span class="label muted"
            >Sources: [Source A] · [Source B] · [Source C] · [Source D]</span
          >
          <span class="label muted">09 / 18</span>
        </div>
      </section>

      <!-- ═══════ SLIDE 10 · DENSE dark ══════════════════════════════════════ -->
      <section class="slide dark slide--dense">
        <!-- Chrome bar -->
        <div class="slide-chrome">
          <span class="label muted" data-anim="fade-in" data-delay="0"
            >[Deep Dive]</span
          >
          <span class="label muted" data-anim="fade-in" data-delay="0">10</span>
        </div>

        <!-- Headline with italic gold emphasis -->
        <h2 class="dense-hl" data-anim="fade-up" data-delay="1">
          Long-form headline that frames the central tradeoff
        </h2>

        <!-- Two-column analysis text -->
        <div class="dense-cols slide-body" data-anim="fade-up" data-delay="2">
          <!-- Left column -->
          <div class="dense-col">
            <h4>[Argument A]</h4>
            <p>
              Use this paragraph to explain the first side of the argument.
              Include one emphasized phrase when a key idea needs
              extra weight.
            </p>
            <p>
              Add a second paragraph with supporting evidence, operational
              detail, or a short example that strengthens the case.
            </p>
            <p>
              Close the column with the implication. Make the logic clear
              enough that the reader understands the recommended action.
            </p>
          </div>

          <!-- Right column -->
          <div class="dense-col">
            <h4>[Argument B]</h4>
            <p>
              Use this paragraph to explain the second side of the argument.
              Highlight the contrasting principle with an
              emphasized phrase.
            </p>
            <p>
              Add a second paragraph with supporting detail. This column should
              feel like a deliberate counterweight to the first column.
            </p>
            <p>
              Close with the practical takeaway, linking the argument back to
              the decision the deck is meant to support.
            </p>
          </div>
        </div>

        <div class="slide-foot">
          <span class="label muted">[Analysis Label] · [Period]</span>
          <span class="label muted">10 / 18</span>
        </div>
      </section>

      <!-- ═══════ SLIDE 11 · STATEMENT dark (replaces broken fullbleed) ════════════════ -->
      <section class="slide dark slide--statement">
        <div class="slide-chrome">
          <span class="label muted" data-anim="fade-in" data-delay="0"
            >[Perspective]</span
          >
          <span class="label muted" data-anim="fade-in" data-delay="0">11</span>
        </div>
        <div class="slide-body">
          <div class="statement-body">
            <div class="kicker" data-anim="fade-in" data-delay="1">
              [Kicker Label]
            </div>
            <div class="rule" data-anim="reveal-right" data-delay="2"></div>
            <h1
              class="h1"
              style="max-width: 68%"
              data-anim="fade-up"
              data-delay="3"
            >
              A second statement slide can reinforce the argument with a
              sharper closing line.
            </h1>
          </div>
        </div>
        <div class="slide-foot">
          <span class="label muted"></span>
          <span class="label muted">11 / 18</span>
        </div>
      </section>

      <!-- ═══════ SLIDE 12 · END dark ════════════════════════════════════════ -->
      <section class="slide dark slide--end">
        <!-- Kicker: organization placeholder -->
        <div class="kicker" data-anim="fade-in" data-delay="0">
          [Organization]
        </div>

        <!-- Gold rule -->
        <div class="rule" data-anim="reveal-right" data-delay="1"></div>

        <!-- Closing headline -->
        <h1
          class="h1"
          style="max-width: 55%"
          data-anim="fade-up"
          data-delay="2"
        >
          Closing headline with one emphasized phrase.
        </h1>

        <!-- Contact line -->
        <p
          class="lead muted"
          style="max-width: 42%"
          data-anim="fade-up"
          data-delay="3"
        >
          [Author Name] · [email@example.com] · [website.example]
        </p>
      </section>

      <!-- SLIDE 11 · CHART  (dark — bar chart with gold accent bar) -->
      <section class="slide slide--chart dark">
        <header class="slide-chrome">
          <span class="label muted">§ [Metrics]</span>
          <span class="label muted">13</span>
        </header>
        <div class="slide-body">
          <div class="chart-header">
            <h2 class="h2" data-anim="fade-up" data-delay="0">
              Chart headline with emphasis
            </h2>
            <span class="caption muted" data-anim="fade-in" data-delay="1"
              >[Unit] · [Scope] · [Period]</span
            >
          </div>
          <div class="chart-wrapper" data-anim="fade-up" data-delay="2">
            <div class="bar-track">
              <div class="bar-col">
                <span class="bar-val">[A]</span>
                <div class="bar-fill" style="height: 9vh"></div>
                <span class="bar-x-label">[T1]</span>
              </div>
              <div class="bar-col">
                <span class="bar-val">[B]</span>
                <div class="bar-fill" style="height: 14vh"></div>
                <span class="bar-x-label">[T2]</span>
              </div>
              <div class="bar-col">
                <span class="bar-val">[C]</span>
                <div class="bar-fill" style="height: 20vh"></div>
                <span class="bar-x-label">[T3]</span>
              </div>
              <div class="bar-col">
                <span class="bar-val">[D]</span>
                <div class="bar-fill" style="height: 26vh"></div>
                <span class="bar-x-label">[T4]</span>
              </div>
              <div class="bar-col">
                <span class="bar-val hi">[E]</span>
                <div class="bar-fill accent" style="height: 30vh"></div>
                <span class="bar-x-label">[T5]</span>
              </div>
            </div>
            <div class="chart-baseline"></div>
          </div>
          <p class="chart-source" data-anim="fade-in" data-delay="3">
            Source: [Source] · [Period]
          </p>
        </div>
        <footer class="slide-foot">
          <span class="label muted">[Organization] · [Period]</span>
          <span class="label muted">13 / 18</span>
        </footer>
      </section>

      <!-- SLIDE 12 · DIAGRAM  (light cream — 4-step investment process) -->
      <section class="slide slide--diagram light">
        <header class="slide-chrome">
          <span class="label muted">Process</span>
          <span class="label muted">14</span>
        </header>
        <div class="slide-body">
          <h2 class="h2" data-anim="fade-up" data-delay="0">
            Four-step process with emphasis
          </h2>
          <div class="flow" data-anim="fade-up" data-delay="1">
            <div class="flow-step">
              <div class="flow-num">01</div>
              <div class="flow-title">Step One</div>
              <div class="flow-desc">
                Briefly describe the first step in the workflow.
              </div>
            </div>
            <div class="flow-arrow">→</div>
            <div class="flow-step">
              <div class="flow-num">02</div>
              <div class="flow-title">Step Two</div>
              <div class="flow-desc">
                Briefly describe the second step in the workflow.
              </div>
            </div>
            <div class="flow-arrow">→</div>
            <div class="flow-step">
              <div class="flow-num">03</div>
              <div class="flow-title">Step Three</div>
              <div class="flow-desc">
                Briefly describe the third step in the workflow.
              </div>
            </div>
            <div class="flow-arrow">→</div>
            <div class="flow-step">
              <div class="flow-num">04</div>
              <div class="flow-title">Step Four</div>
              <div class="flow-desc">
                Briefly describe the fourth step in the workflow.
              </div>
            </div>
          </div>
        </div>
        <footer class="slide-foot">
          <span class="label muted">[Organization] · [Period]</span>
          <span class="label muted">14 / 18</span>
        </footer>
      </section>

      <!-- ═══════ SLIDE 13 · PIE CHART dark ════════════════════════════════ -->
      <section class="slide dark slide--pie">
        <!-- Chrome bar -->
        <div class="slide-chrome">
          <span class="label muted" data-anim="fade-in" data-delay="0"
            >[Breakdown]</span
          >
          <span class="label muted" data-anim="fade-in" data-delay="0">15</span>
        </div>

        <div class="slide-body">
          <!-- Headline -->
          <h2 class="h2" data-anim="fade-up" data-delay="1">
            Breakdown by category
          </h2>

          <!-- Donut + legend row -->
          <div class="pie-row" data-anim="fade-in" data-delay="2">
            <!-- Donut chart: conic-gradient, 4 sectors -->
            <div
              class="pie-donut"
              style="
                background: conic-gradient(
                  var(--c-accent) 0% 35%,
                  #3d5475 35% 65%,
                  #526880 65% 87%,
                  #2d3f55 87% 100%
                );
              "
            ></div>

            <!-- Legend -->
            <div class="pie-legend">
              <div class="pie-item">
                <div
                  class="pie-swatch"
                  style="background: var(--c-accent)"
                ></div>
                <span class="pie-item-label">Category A</span>
                <span class="pie-item-val">35%</span>
              </div>
              <div class="pie-item">
                <div class="pie-swatch" style="background: #3d5475"></div>
                <span class="pie-item-label">Category B</span>
                <span class="pie-item-val">30%</span>
              </div>
              <div class="pie-item">
                <div class="pie-swatch" style="background: #526880"></div>
                <span class="pie-item-label">Category C</span>
                <span class="pie-item-val">22%</span>
              </div>
              <div class="pie-item">
                <div class="pie-swatch" style="background: #2d3f55"></div>
                <span class="pie-item-label">Category D</span>
                <span class="pie-item-val">13%</span>
              </div>
              <div class="pie-total">Total: [N] · As of [Period]</div>
            </div>
          </div>

          <p class="chart-source" data-anim="fade-in" data-delay="3">
            Source: [Source] · [Period]
          </p>
        </div>

        <div class="slide-foot">
          <span class="label muted">[Organization] · [Period]</span>
          <span class="label muted">15 / 18</span>
        </div>
      </section>

      <!-- ═══════ SLIDE 14 · PYRAMID dark ══════════════════════════════════ -->
      <section class="slide dark slide--pyramid">
        <!-- Chrome bar -->
        <div class="slide-chrome">
          <span class="label muted" data-anim="fade-in" data-delay="0"
            >[Hierarchy]</span
          >
          <span class="label muted" data-anim="fade-in" data-delay="0">16</span>
        </div>

        <div class="slide-body">
          <!-- Headline -->
          <h2 class="h2" data-anim="fade-up" data-delay="1">
            The priority hierarchy
          </h2>

          <!-- Pyramid levels, narrowest at top -->
          <div class="pyramid" data-anim="fade-up" data-delay="2">
            <div class="pyr-level">
              <span class="pyr-name">Level One</span>
              <span class="pyr-desc"
                >Highest-order principle or decision criterion</span
              >
            </div>
            <div class="pyr-level">
              <span class="pyr-name">Level Two</span>
              <span class="pyr-desc"
                >Second-order principle or decision criterion</span
              >
            </div>
            <div class="pyr-level">
              <span class="pyr-name">Level Three</span>
              <span class="pyr-desc">Third-order principle or decision criterion</span>
            </div>
            <div class="pyr-level">
              <span class="pyr-name">Level Four</span>
              <span class="pyr-desc">Supporting layer or operating standard</span>
            </div>
            <div class="pyr-level">
              <span class="pyr-name">Level Five</span>
              <span class="pyr-desc"
                >Foundation layer or ongoing practice</span
              >
            </div>
          </div>
        </div>

        <div class="slide-foot">
          <span class="label muted">[Organization] · [Period]</span>
          <span class="label muted">16 / 18</span>
        </div>
      </section>

      <!-- ═══════ SLIDE 15 · VERTICAL TIMELINE dark ═════════════════════════ -->
      <section class="slide dark slide--vtimeline">
        <!-- Chrome bar -->
        <div class="slide-chrome">
          <span class="label muted" data-anim="fade-in" data-delay="0"
            >[Timeline]</span
          >
          <span class="label muted" data-anim="fade-in" data-delay="0">17</span>
        </div>

        <!-- Section headline with italic em -->
        <h2 class="vt-hl" data-anim="fade-up" data-delay="1">
          From starting point to current state
        </h2>

        <!-- Timeline: 3-column grid: date | spine | content -->
        <div class="vtimeline" data-anim="fade-up" data-delay="2">
          <!-- Event 1 -->
          <div class="vt-date">[Year 1]</div>
          <div class="vt-spine"></div>
          <div class="vt-content">
            <div class="vt-title">Milestone One</div>
            <p class="vt-body">
              Describe the first milestone and the outcome it produced.
            </p>
          </div>

          <!-- Event 2 -->
          <div class="vt-date">[Year 2]</div>
          <div class="vt-spine"></div>
          <div class="vt-content">
            <div class="vt-title">Milestone Two</div>
            <p class="vt-body">
              Describe the second milestone. Use emphasis for the key
              implication.
            </p>
          </div>

          <!-- Event 3 -->
          <div class="vt-date">[Year 3]</div>
          <div class="vt-spine"></div>
          <div class="vt-content">
            <div class="vt-title">Milestone Three</div>
            <p class="vt-body">
              Describe the third milestone and how the scope changed.
            </p>
          </div>

          <!-- Event 4 -->
          <div class="vt-date">[Year 4]</div>
          <div class="vt-spine"></div>
          <div class="vt-content">
            <div class="vt-title">Milestone Four</div>
            <p class="vt-body">
              Describe the current milestone and the focus area it
              represents.
            </p>
          </div>
        </div>

        <div class="slide-foot">
          <span class="label muted">[Organization] · [Period]</span>
          <span class="label muted">17 / 18</span>
        </div>
      </section>

      <!-- ═══════ SLIDE 16 · CYCLE PROCESS dark ════════════════════════════ -->
      <section class="slide dark slide--cycle">
        <!-- Chrome bar -->
        <div class="slide-chrome">
          <span class="label muted" data-anim="fade-in" data-delay="0"
            >[Process]</span
          >
          <span class="label muted" data-anim="fade-in" data-delay="0">18</span>
        </div>

        <div class="slide-body">
          <!-- Headline -->
          <h2 class="h2" data-anim="fade-up" data-delay="1">
            The operating cycle
          </h2>

          <!-- 2×2 cycle grid -->
          <div class="cycle-grid" data-anim="fade-up" data-delay="2">
            <!-- Step 01: top-left -->
            <div class="cycle-step">
              <div class="cycle-num">01</div>
              <div class="cycle-title">Step One</div>
              <div class="cycle-desc">
                Describe how the cycle begins and what input starts the work.
              </div>
            </div>

            <!-- Arrow right: col 2 row 1 -->
            <div class="cycle-arrow">→</div>

            <!-- Step 02: top-right -->
            <div class="cycle-step">
              <div class="cycle-num">02</div>
              <div class="cycle-title">Step Two</div>
              <div class="cycle-desc">
                Describe how the input is examined, refined, or validated.
              </div>
            </div>

            <!-- Arrow down: col 1 row 2 -->
            <div class="cycle-arrow">↓</div>

            <!-- Empty center: col 2 row 2 -->
            <div></div>

            <!-- Arrow down: col 3 row 2 -->
            <div class="cycle-arrow">↓</div>

            <!-- Step 04: bottom-left -->
            <div class="cycle-step">
              <div class="cycle-num">04</div>
              <div class="cycle-title">Step Four</div>
              <div class="cycle-desc">
                Describe how the result is implemented, supported, or improved.
              </div>
            </div>

            <!-- Arrow left: col 2 row 3 -->
            <div class="cycle-arrow">←</div>

            <!-- Step 03: bottom-right -->
            <div class="cycle-step">
              <div class="cycle-num">03</div>
              <div class="cycle-title">Step Three</div>
              <div class="cycle-desc">
                Describe the decision point and the criteria used to move
                forward.
              </div>
            </div>
          </div>
        </div>

        <div class="slide-foot">
          <span class="label muted">[Organization] · [Period]</span>
          <span class="label muted">18 / 18</span>
        </div>
      </section>
    </div>
    <!-- /deck -->

    <script>
      /* ══════════════════════════════════════════════════════════════════════
         SIGNAL PRESENTATION ENGINE
         Self-contained navigation: keyboard, touch, mouse-wheel, nav-dots.
         No external dependencies.
         ══════════════════════════════════════════════════════════════════════ */
      (function () {
        "use strict";

        /* ── State ─────────────────────────────────────────────────────────── */
        const deck = document.getElementById("deck");
        const slides = Array.from(document.querySelectorAll(".slide"));
        const dotsEl = document.getElementById("nav-dots");
        const counter = document.getElementById("slide-counter");
        const total = slides.length;
        let current = 0;
        let animating = false;

        /* ── Bootstrap: set deck width, build nav dots ─────────────────────── */
        function init() {
          // The deck is one wide strip — width equals N full viewports
          deck.style.width = total + "00vw";

          // Build one dot per slide
          slides.forEach(function (_, i) {
            const btn = document.createElement("button");
            btn.className = "nav-dot";
            btn.setAttribute("aria-label", "Go to slide " + (i + 1));
            btn.addEventListener("click", function () {
              goTo(i);
            });
            dotsEl.appendChild(btn);
          });

          // Activate the first slide immediately
          goTo(0, true); // true = skip transition on load
        }

        /* ── goTo: the single source of truth for navigation ───────────────── */
        function goTo(index, instant) {
          // Clamp to valid range
          index = Math.max(0, Math.min(total - 1, index));
          if (index === current && !instant) return;

          // Mark animating to block rapid key/swipe spam
          animating = true;

          // Deactivate current slide: reset animations by toggling is-active
          const prev = slides[current];
          prev.classList.remove("is-active");
          // Force a reflow so removing then re-adding is-active (on same slide)
          // actually re-triggers the keyframe animations
          void prev.offsetWidth; // eslint-disable-line no-void

          // Translate the deck
          if (instant) {
            // Remove transition temporarily for the initial load snap
            deck.style.transition = "none";
            deck.style.transform = "translateX(-" + index + "00vw)";
            void deck.offsetWidth; // force reflow
            deck.style.transition = "";
          } else {
            deck.style.transform = "translateX(-" + index + "00vw)";
          }

          // Activate new slide
          current = index;
          const next = slides[current];
          next.classList.add("is-active");

          // Update nav dots
          Array.from(dotsEl.children).forEach(function (dot, i) {
            dot.classList.toggle("is-active", i === current);
          });

          // Update counter: "3 / 12"
          counter.textContent = current + 1 + " / " + total;

          // Unlock after transition completes
          const delay = instant
            ? 0
            : parseFloat(getComputedStyle(deck).transitionDuration) * 1000;
          setTimeout(function () {
            animating = false;
          }, delay);
        }

        /* ── Keyboard navigation ──────────────────────────────────────────── */
        document.addEventListener("keydown", function (e) {
          if (animating) return;
          if (
            e.key === "ArrowRight" ||
            e.key === "ArrowDown" ||
            e.key === " "
          ) {
            e.preventDefault();
            goTo(current + 1);
          } else if (e.key === "ArrowLeft" || e.key === "ArrowUp") {
            e.preventDefault();
            goTo(current - 1);
          } else if (e.key === "Home") {
            e.preventDefault();
            goTo(0);
          } else if (e.key === "End") {
            e.preventDefault();
            goTo(total - 1);
          }
        });

        /* ── Mouse-wheel navigation ───────────────────────────────────────── */
        let wheelCooldown = false;
        document.addEventListener(
          "wheel",
          function (e) {
            e.preventDefault();
            if (animating || wheelCooldown) return;
            wheelCooldown = true;
            setTimeout(function () {
              wheelCooldown = false;
            }, 900);
            if (e.deltaY > 0 || e.deltaX > 0) {
              goTo(current + 1);
            } else {
              goTo(current - 1);
            }
          },
          { passive: false },
        );

        /* ── Touch swipe navigation ───────────────────────────────────────── */
        let touchStartX = null;
        let touchStartY = null;

        document.addEventListener(
          "touchstart",
          function (e) {
            touchStartX = e.touches[0].clientX;
            touchStartY = e.touches[0].clientY;
          },
          { passive: true },
        );

        document.addEventListener(
          "touchend",
          function (e) {
            if (touchStartX === null) return;
            const dx = touchStartX - e.changedTouches[0].clientX;
            const dy = touchStartY - e.changedTouches[0].clientY;
            // Only respond if horizontal swipe is dominant
            if (Math.abs(dx) > Math.abs(dy) && Math.abs(dx) > 40) {
              if (animating) return;
              if (dx > 0) {
                goTo(current + 1); // swipe left: next
              } else {
                goTo(current - 1); // swipe right: prev
              }
            }
            touchStartX = null;
            touchStartY = null;
          },
          { passive: true },
        );

        /* ── Boot ─────────────────────────────────────────────────────────── */
        init();
      })();
    </script>
  </body>
</html>
