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

  :root {
    --bauhinia: #6B2B8E;
    --bauhinia-light: #9D4EDD;
    --bauhinia-dark: #3D1654;
    --gold: #D4A574;
    --gold-bright: #E8BC80;
    --ink: #0A0A0A;
    --paper: #FAFAF7;
    --muted: #6B6B6B;
    --line: #E5E5E0;
    --accent: #FF6B6B;
  }

  html, body {
    width: 100%;
    height: 100%;
    margin: 0;
    overflow: hidden;
    background: #000;
    font-family: 'Inter', 'Noto Serif SC', -apple-system, sans-serif;
    color: var(--ink);
    -webkit-font-smoothing: antialiased;
  }

  body {
    display: flex;
    align-items: center;
    justify-content: center;
  }

  /* 全设备统一:deck 固定 1600×900,等比 scale 到 viewport(min(vw/1600, vh/900)),
     周围黑边补满任何分辨率/朝向看到的画面都是严格相似的
     缩放系数由下方 JS 在 load/resize/orientationchange 时计算并写入 --deck-scale */
  .deck {
    position: relative;
    width: 1600px;
    height: 900px;
    flex-shrink: 0;
    overflow: hidden;
    transform: scale(var(--deck-scale, 1));
    transform-origin: center center;
  }

  .slide {
    position: absolute;
    inset: 0;
    background: var(--paper);
    padding: 40px 96px;
    display: flex;
    flex-direction: column;
    opacity: 0;
    transform: translateX(40px);
    transition: opacity 0.5s cubic-bezier(0.22, 1, 0.36, 1), transform 0.5s cubic-bezier(0.22, 1, 0.36, 1);
    pointer-events: none;
    overflow: hidden;
  }

  .slide.active { opacity: 1; transform: translateX(0); pointer-events: auto; }
  .slide.prev { transform: translateX(-40px); }

  /* Slide header */
  .slide-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 27px;
    border-bottom: 1px solid var(--line);
    padding-bottom: 14px;
    flex-shrink: 0;
  }

  .slide-num {
    font-family: 'Playfair Display', serif;
    font-size: 13px;
    color: var(--muted);
    letter-spacing: 2px;
  }

  .slide-label {
    display: none;
    font-size: 11px;
    color: var(--bauhinia);
    letter-spacing: 4px;
    text-transform: uppercase;
    font-weight: 700;
  }

  .eyebrow {
    font-size: 12px;
    letter-spacing: 6px;
    color: var(--bauhinia);
    text-transform: uppercase;
    font-weight: 700;
    margin-bottom: 16px;
  }

  .title {
    font-family: 'Noto Serif SC', serif;
    font-weight: 900;
    font-size: 56px;
    line-height: 1.15;
    color: var(--ink);
    margin-bottom: 18px;
    letter-spacing: -1px;
  }

  .subtitle {
    font-size: 20px;
    line-height: 1.5;
    color: var(--muted);
    font-weight: 400;
    max-width: 900px;
  }

  /* ==== SLIDE 1 · COVER ==== */
  .cover {
    background: linear-gradient(135deg, #1a0b2e 0%, #3D1654 50%, #6B2B8E 100%);
    color: var(--paper);
    padding: 0;
    justify-content: center;
    align-items: center;
    text-align: center;
    overflow: hidden;
  }
  .cover::before {
    content: '';
    position: absolute;
    inset: 0;
    background-image:
      radial-gradient(circle at 20% 30%, rgba(157, 78, 221, 0.3), transparent 50%),
      radial-gradient(circle at 80% 70%, rgba(212, 165, 116, 0.2), transparent 50%);
    pointer-events: none;
  }
  .cover-content { position: relative; z-index: 1; max-width: 1000px; padding: 0 40px; }
  .cover-logo {
    font-family: 'Playfair Display', serif;
    font-size: 18px;
    letter-spacing: 8px;
    color: var(--gold);
    margin-bottom: 48px;
  }
  .cover-title {
    font-family: 'Inter', sans-serif;
    font-size: 110px;
    font-weight: 900;
    line-height: 0.95;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    margin-bottom: 22px;
    background: linear-gradient(180deg, #ffffff 0%, #ffffff 60%, #f0d9b8 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    text-shadow: 0 2px 24px rgba(255, 255, 255, 0.08);
  }
  .cover-subtitle {
    font-family: 'Inter', sans-serif;
    font-size: 18px;
    font-weight: 500;
    letter-spacing: 0.45em;
    color: rgba(255,255,255,0.85);
    margin-bottom: 48px;
    text-transform: uppercase;
    padding-left: 0.45em;
  }
  .cover-tagline {
    font-family: 'Noto Serif SC', serif;
    font-size: 24px;
    color: var(--gold-bright);
    letter-spacing: 4px;
    padding: 18px 40px;
    border-top: 1px solid rgba(212, 165, 116, 0.3);
    border-bottom: 1px solid rgba(212, 165, 116, 0.3);
    display: inline-block;
    font-weight: 500;
  }
  .cover-footer {
    position: absolute;
    bottom: 40px;
    left: 0; right: 0;
    display: flex;
    justify-content: space-between;
    padding: 0 60px;
    font-size: 12px;
    color: rgba(255,255,255,0.6);
    letter-spacing: 2px;
    z-index: 1;
  }

  /* ==== SLIDE 2 · VISION — side-by-side equations ==== */
  .vision-equations {
    margin: 16px 0 22px;
    background: var(--ink);
    padding: 16px 24px;
    color: white;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0;
    position: relative;
  }
  .vision-equations::before {
    content: '';
    position: absolute;
    top: 12%; bottom: 12%;
    left: 50%;
    width: 1px;
    background: linear-gradient(to bottom, transparent, rgba(212, 165, 116, 0.6), transparent);
  }
  .eq-row {
    padding: 4px 24px;
    display: flex;
    flex-direction: column;
    gap: 6px;
  }
  .eq-label {
    font-family: 'Noto Serif SC', serif;
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 3px;
    color: rgba(255,255,255,0.5);
    text-transform: uppercase;
  }
  .eq-row.living .eq-label { color: var(--gold); }
  .eq-formula {
    font-family: 'JetBrains Mono', monospace;
    font-size: 19px;
    font-weight: 500;
    letter-spacing: 0.5px;
    color: rgba(255,255,255,0.7);
    line-height: 1.4;
    margin: 2px 0;
  }
  .eq-row.living .eq-formula {
    color: white;
    font-weight: 600;
  }
  .eq-formula em {
    color: var(--gold);
    font-style: normal;
  }
  .eq-note {
    font-size: 12px;
    color: rgba(255,255,255,0.55);
    letter-spacing: 0.5px;
    font-family: 'Inter', sans-serif;
    line-height: 1.55;
  }
  .eq-note em {
    font-style: normal;
    color: rgba(255,255,255,0.85);
    font-weight: 600;
    font-family: 'JetBrains Mono', monospace;
  }
  .eq-row.living .eq-note { color: rgba(255,255,255,0.75); }
  .eq-row.living .eq-note em { color: var(--gold-bright); }
  .eq-note strong {
    color: var(--gold);
    font-weight: 700;
  }

  .vision-lines {
    display: flex;
    flex-direction: column;
    gap: 16px;
  }
  .vision-line {
    display: flex;
    align-items: flex-start;
    gap: 24px;
    padding: 18px 24px;
    background: white;
    border-left: 4px solid var(--bauhinia);
    transition: all 0.3s;
  }
  .vision-line:hover { transform: translateX(8px); box-shadow: 0 8px 20px rgba(107, 43, 142, 0.1); }
  .vision-label {
    font-family: 'Playfair Display', serif;
    font-size: 32px;
    font-weight: 900;
    color: var(--bauhinia);
    line-height: 1;
    flex-shrink: 0;
    min-width: 60px;
  }
  .vision-text { flex: 1; }
  .vision-headline {
    font-family: 'Noto Serif SC', serif;
    font-size: 22px;
    font-weight: 700;
    margin-bottom: 4px;
  }
  .vision-desc { font-size: 14px; color: var(--muted); line-height: 1.5; }

  /* ==== SLIDE 3 · PROBLEM ==== */
  .problem-grid {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: 24px;
    margin: 18px 0 14px;
  }
  .problem-card {
    padding: 22px 22px 20px;
    background: white;
    border: 1px solid var(--line);
    border-top: 4px solid var(--bauhinia);
    position: relative;
    transition: all 0.3s;
    display: flex;
    flex-direction: column;
  }
  .problem-card:hover { transform: translateY(-4px); box-shadow: 0 12px 24px rgba(0,0,0,0.08); }
  .problem-card-level {
    font-size: 11px;
    color: var(--bauhinia);
    letter-spacing: 4px;
    font-weight: 700;
    margin-bottom: 10px;
  }
  .problem-card-q {
    font-family: 'Noto Serif SC', serif;
    font-size: 20px;
    font-weight: 700;
    line-height: 1.35;
    margin-bottom: 12px;
  }
  .problem-card-r {
    font-size: 13px;
    color: var(--muted);
    line-height: 1.6;
    padding-top: 12px;
    border-top: 1px dashed var(--line);
    margin-bottom: 14px;
  }
  .problem-card-evidence {
    display: flex;
    flex-direction: column;
    gap: 10px;
    margin-top: auto;
  }
  .problem-evi {
    display: flex;
    align-items: baseline;
    gap: 10px;
    padding: 10px 12px;
    background: rgba(91, 33, 182, 0.04);
    border-left: 2px solid rgba(91, 33, 182, 0.3);
  }
  .problem-evi-num {
    font-family: 'Inter', sans-serif;
    font-weight: 800;
    font-size: 18px;
    color: var(--bauhinia);
    letter-spacing: -0.02em;
    flex-shrink: 0;
    min-width: 64px;
  }
  .problem-evi-txt {
    font-size: 12px;
    color: var(--ink);
    line-height: 1.45;
    opacity: 0.78;
  }
  .problem-symptom-strip {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 0;
    border: 1px solid var(--line);
    border-left: 4px solid var(--gold);
    margin: 0 0 16px;
    background: rgba(184, 134, 11, 0.04);
  }
  .symptom-item {
    padding: 14px 18px;
    border-right: 1px dashed var(--line);
    display: flex;
    flex-direction: column;
    gap: 4px;
  }
  .symptom-item:last-child { border-right: none; }
  .symptom-tag {
    font-size: 10px;
    letter-spacing: 3px;
    color: var(--gold);
    font-weight: 700;
    text-transform: uppercase;
  }
  .symptom-text {
    font-family: 'Noto Serif SC', serif;
    font-size: 14px;
    line-height: 1.4;
    color: var(--ink);
    font-weight: 500;
  }
  .symptom-text em {
    font-style: normal;
    color: var(--bauhinia);
    font-weight: 700;
  }
  .problem-bottom {
    margin-top: auto;
    padding: 18px 28px;
    background: var(--ink);
    color: var(--paper);
    font-family: 'Noto Serif SC', serif;
    font-size: 18px;
    text-align: center;
    font-weight: 500;
  }
  .problem-bottom strong { color: var(--gold); }

  /* ==== SLIDE 4/5 · PRODUCT ==== */
  .product-v0 {
    display: grid;
    grid-template-columns: 1.6fr 1fr;
    gap: 32px;
    flex: 1;
    min-height: 0;
  }
  .video-wrap {
    position: relative;
    width: 100%;
    background: #000;
    border-radius: 4px;
    overflow: hidden;
    min-height: 300px;
  }
  .video-wrap iframe, .video-wrap video {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    border: none;
  }
  .v0-stats {
    display: flex;
    flex-direction: column;
    gap: 12px;
    justify-content: flex-start;
  }
  /* "总" — header banner that summarizes V0's form */
  .v0-summary-card {
    padding: 18px 22px;
    background: linear-gradient(135deg, var(--bauhinia-dark) 0%, var(--bauhinia) 100%);
    color: white;
    border-left: 4px solid var(--gold);
    margin-bottom: 4px;
  }
  .v0-summary-eyebrow {
    font-size: 10px;
    color: var(--gold);
    letter-spacing: 3px;
    text-transform: uppercase;
    font-weight: 700;
    margin-bottom: 6px;
  }
  .v0-summary-title {
    font-family: 'Noto Serif SC', serif;
    font-size: 26px;
    font-weight: 900;
    color: var(--gold);
    line-height: 1.1;
  }
  .v0-summary-desc {
    font-size: 12px;
    color: rgba(255,255,255,0.8);
    margin-top: 6px;
    line-height: 1.5;
  }
  .v0-stat {
    padding: 14px 20px;
    background: white;
    border: 1px solid var(--line);
    border-left: 4px solid var(--gold);
  }
  .v0-stat-num {
    font-family: 'Playfair Display', serif;
    font-size: 36px;
    font-weight: 900;
    color: var(--bauhinia);
    line-height: 1;
  }
  .v0-stat-label {
    font-size: 11px;
    color: var(--muted);
    letter-spacing: 2px;
    margin-top: 5px;
    text-transform: uppercase;
  }
  .v0-stat-desc {
    font-size: 12px;
    color: var(--ink);
    margin-top: 6px;
    line-height: 1.45;
  }

  .product-v1 {
    display: grid;
    grid-template-columns: minmax(0, 1.85fr) minmax(0, 1fr);
    gap: 14px;
    margin-top: 12px;
    flex: 1;
    min-height: 0;
    align-items: stretch;
  }
  .v1-cell {
    background: #050505;
    border-radius: 4px;
    overflow: hidden;
    position: relative;
    height: 100%;
    width: 100%;
    border: 1px solid rgba(255,255,255,0.08);
    box-shadow: 0 16px 36px rgba(0,0,0,0.16);
  }
  .v1-cell img, .v1-cell video {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    background: #050505;
  }
  .v1-cell-ui img {
    object-fit: contain;
  }
  .v1-cell-ui {
    aspect-ratio: 16 / 9;
    height: auto;
  }
  .v1-side-stack {
    display: grid;
    grid-template-rows: auto minmax(0, 1fr);
    gap: 14px;
    min-height: 0;
  }
  .v1-video-strip {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 14px;
    min-height: 0;
  }
  .v1-cell-video {
    aspect-ratio: 9 / 16;
    height: 100%;
    width: auto;
    justify-self: center;
  }
  .v1-cell-video .v1-cell-caption {
    display: none;
  }
  .v1-cell-label {
    position: absolute;
    top: 12px;
    left: 12px;
    padding: 6px 14px;
    background: rgba(0,0,0,0.7);
    backdrop-filter: blur(8px);
    color: var(--gold);
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 2px;
    border-radius: 2px;
    z-index: 2;
  }
  .v1-cell-video .v1-cell-label {
    top: 8px;
    left: 8px;
    padding: 5px 8px;
    font-size: 9px;
    letter-spacing: 1px;
  }
  .v1-cell-caption {
    position: absolute;
    bottom: 12px;
    left: 12px;
    right: 12px;
    padding: 10px 14px;
    background: rgba(0,0,0,0.75);
    backdrop-filter: blur(8px);
    color: white;
    font-size: 12px;
    border-radius: 2px;
    z-index: 2;
  }
  .v1-note {
    font-size: 12px;
    color: var(--muted);
    font-style: italic;
    text-align: center;
    margin-top: 10px;
  }

  /* ==== SLIDE 8 · V1 PRODUCT THESIS ==== */
  .v1-thesis-layout {
    display: grid;
    grid-template-columns: 0.98fr 1.08fr 1fr;
    gap: 14px;
    flex: 1;
    min-height: 0;
    margin-top: 10px;
  }
  .v1-thesis-panel {
    background: white;
    border: 1px solid var(--line);
    padding: 14px 16px;
    display: flex;
    flex-direction: column;
    min-height: 0;
  }
  .v1-thesis-panel.dark {
    background: linear-gradient(135deg, #120815 0%, #30103f 58%, #5f267c 100%);
    color: white;
    border: none;
    justify-content: flex-start;
    position: relative;
    overflow: hidden;
  }
  .v1-thesis-kicker {
    font-size: 9.5px;
    letter-spacing: 2.8px;
    text-transform: uppercase;
    font-weight: 800;
    color: var(--gold);
    margin-bottom: 10px;
  }
  .v1-thesis-big {
    font-family: 'Noto Serif SC', serif;
    font-size: 25px;
    line-height: 1.16;
    font-weight: 900;
    position: relative;
    z-index: 1;
  }
  .v1-thesis-big strong { color: var(--gold-bright); }
  .v1-thesis-copy {
    position: relative;
    z-index: 1;
    margin-top: 12px;
    font-size: 12px;
    line-height: 1.6;
    color: rgba(255,255,255,0.82);
  }
  .v1-thesis-copy strong { color: white; }
  .v1-thesis-tags {
    position: relative;
    z-index: 1;
    display: flex;
    flex-wrap: wrap;
    gap: 7px;
    margin-top: 12px;
  }
  .v1-thesis-tag {
    padding: 6px 9px;
    border: 1px solid rgba(212,165,116,0.45);
    color: var(--gold-bright);
    font-size: 10px;
    font-weight: 700;
    letter-spacing: 1px;
    background: rgba(255,255,255,0.06);
  }
  .v1-thesis-mini {
    position: relative;
    z-index: 1;
    display: grid;
    grid-template-columns: 1fr;
    gap: 6px;
    margin-top: 12px;
  }
  .v1-thesis-mini-card {
    padding: 8px 10px;
    background: rgba(255,255,255,0.08);
    border-left: 3px solid var(--gold);
  }
  .v1-thesis-mini-card h4 {
    font-size: 10.5px;
    color: var(--gold-bright);
    letter-spacing: 1.5px;
    text-transform: uppercase;
    margin-bottom: 3px;
  }
  .v1-thesis-mini-card p {
    font-size: 10.6px;
    line-height: 1.36;
    color: rgba(255,255,255,0.86);
  }
  .v1-thesis-mini-card p strong {
    color: white;
    font-weight: 800;
  }
  .v1-thesis-panel-title {
    font-family: 'Noto Serif SC', serif;
    font-size: 17px;
    line-height: 1.25;
    font-weight: 900;
    color: var(--ink);
    margin-bottom: 8px;
  }
  .v1-thesis-panel-sub {
    font-size: 10.8px;
    line-height: 1.45;
    color: var(--muted);
    margin-bottom: 9px;
  }
  .v1-loop {
    display: grid;
    grid-template-columns: 1fr;
    gap: 5px;
    min-height: 0;
  }
  .v1-loop-step {
    display: grid;
    grid-template-columns: 34px 1fr;
    gap: 9px;
    align-items: center;
    padding: 6px 9px;
    background: var(--paper);
    border-left: 3px solid var(--bauhinia);
  }
  .v1-loop-step.alt { border-left-color: var(--gold); }
  .v1-loop-num {
    font-family: 'Playfair Display', serif;
    font-size: 16px;
    font-weight: 900;
    color: var(--bauhinia);
    text-align: center;
  }
  .v1-loop-step.alt .v1-loop-num { color: var(--gold); }
  .v1-loop-body h4 {
    font-size: 11.8px;
    font-weight: 800;
    color: var(--ink);
    margin-bottom: 2px;
  }
  .v1-loop-body p {
    font-size: 10.4px;
    line-height: 1.34;
    color: var(--muted);
  }
  .v1-loop-note {
    margin-top: 8px;
    padding: 9px 11px;
    background: #0A0A0A;
    color: white;
    font-size: 10.6px;
    line-height: 1.42;
  }
  .v1-loop-note strong { color: var(--gold-bright); }
  .v1-growth {
    margin-top: 8px;
    padding: 10px 12px;
    background: #F5F1EC;
    border-left: 3px solid var(--gold);
  }
  .v1-growth-title {
    font-family: 'Noto Serif SC', serif;
    font-size: 12.5px;
    font-weight: 900;
    color: var(--ink);
    margin-bottom: 5px;
  }
  .v1-growth-row {
    font-size: 10.5px;
    line-height: 1.45;
    color: #383838;
    padding: 2px 0;
  }
  .v1-growth-row strong { color: var(--bauhinia); }
  .v1-reason-list {
    display: flex;
    flex-direction: column;
    gap: 9px;
    justify-content: flex-start;
    flex: 1;
    min-height: 0;
  }
  .v1-reason {
    padding: 11px 12px;
    background: var(--paper);
    border: 1px solid var(--line);
  }
  .v1-reason h4 {
    font-size: 12px;
    color: var(--bauhinia);
    font-weight: 800;
    margin-bottom: 3px;
  }
  .v1-reason p {
    font-size: 10.7px;
    color: #3f3f3f;
    line-height: 1.43;
  }
  .v1-reason.accent {
    background: #0A0A0A;
    border-color: #0A0A0A;
  }
  .v1-reason.accent h4 { color: var(--gold-bright); }
  .v1-reason.accent p { color: rgba(255,255,255,0.86); }
  .v1-thesis-bottom {
    margin-top: 12px;
    padding: 12px 16px;
    background: #F5F1EC;
    border-left: 4px solid var(--gold);
    font-size: 12.5px;
    line-height: 1.55;
    color: #373737;
  }
  .v1-thesis-bottom strong { color: var(--bauhinia); }

  /* ==== SLIDE 6 · TRACTION ==== */
  .traction-headline {
    font-family: 'Noto Serif SC', serif;
    font-size: 42px;
    font-weight: 900;
    margin-bottom: 24px;
    line-height: 1.2;
  }
  .traction-headline span { color: var(--bauhinia); }
  .traction-hero {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 14px;
    margin-bottom: 20px;
  }
  .metric {
    padding: 24px 16px;
    border: 1px solid var(--line);
    background: white;
    text-align: center;
    position: relative;
    overflow: hidden;
  }
  .metric.hero { background: var(--ink); color: white; border-color: var(--ink); }
  .metric.hero .metric-value { color: var(--gold); }
  .metric::before {
    content: ''; position: absolute; top: 0; left: 0; right: 0;
    height: 3px; background: var(--bauhinia);
  }
  .metric-value {
    font-family: 'Playfair Display', serif;
    font-size: 56px;
    font-weight: 900;
    color: var(--bauhinia);
    line-height: 1;
    margin-bottom: 8px;
    letter-spacing: -1px;
  }
  .metric-value .sm { font-size: 0.5em; }
  .metric-label {
    font-size: 12px;
    color: var(--muted);
    letter-spacing: 2px;
    text-transform: uppercase;
  }
  .metric.hero .metric-label { color: rgba(255,255,255,0.7); }

  .traction-detail {
    padding: 20px 28px;
    background: #F5F1EC;
    border-left: 3px solid var(--gold);
    font-size: 14px;
    line-height: 1.7;
    color: #4a4a4a;
    margin-bottom: 16px;
  }
  .traction-detail strong { color: var(--ink); font-weight: 700; }

  /* Retention matrix with directional arrows */
  .retention-flow {
    background: white;
    border: 1px solid var(--line);
    padding: 22px 32px 24px;
    margin-top: 4px;
  }
  .retention-matrix {
    display: grid;
    grid-template-columns: 104px 1fr 90px 1fr 100px 1fr;
    align-items: center;
    row-gap: 18px;
    column-gap: 0;
  }
  .rm-col-header {
    text-align: center;
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 3px;
    color: var(--muted);
    text-transform: uppercase;
    padding-bottom: 6px;
    border-bottom: 1px solid var(--line);
  }
  .rm-spacer { /* empty cell */ }
  .rm-row-label {
    font-size: 13px;
    font-weight: 700;
    letter-spacing: 2px;
    color: var(--muted);
  }
  .rm-row-label small {
    display: block;
    margin-top: 4px;
    font-size: 9px;
    line-height: 1.2;
    letter-spacing: 0;
    font-weight: 600;
    white-space: nowrap;
    color: var(--muted);
  }
  .rm-row-label.hk { color: var(--bauhinia); }
  .rm-cell {
    text-align: center;
    font-family: 'Playfair Display', serif;
    font-size: 28px;
    font-weight: 900;
    color: var(--ink);
    line-height: 1;
  }
  .rm-cell.hk { color: var(--bauhinia); }
  .rm-arrow {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 4px;
    position: relative;
  }
  .rm-arrow-rate {
    font-size: 14px;
    font-weight: 800;
    color: var(--ink);
    letter-spacing: 0.5px;
  }
  .rm-arrow.hk .rm-arrow-rate { color: var(--bauhinia); }
  .rm-arrow-svg {
    width: 100%;
    height: 16px;
  }
  .retention-flow-takeaway {
    text-align: center;
    margin-top: 18px;
    padding-top: 14px;
    border-top: 1px dashed var(--line);
    font-family: 'Noto Serif SC', serif;
    font-size: 14px;
    color: #333;
  }
  .retention-flow-takeaway strong { color: var(--bauhinia); }

  /* === Player voices · scrolling marquee === */
  .voices-section {
    margin-top: 12px;
    position: relative;
  }
  .voices-label {
    position: absolute;
    top: -8px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 5;
    background: var(--paper);
    padding: 2px 14px;
    font-size: 10px;
    letter-spacing: 4px;
    color: var(--bauhinia);
    font-weight: 800;
    text-transform: uppercase;
    display: flex;
    align-items: center;
    gap: 8px;
  }
  .voices-label small {
    font-family: 'Inter', sans-serif;
    font-size: 9px;
    color: var(--muted);
    letter-spacing: 2px;
    font-weight: 500;
    text-transform: none;
  }
  .voices-marquee {
    overflow: hidden;
    padding: 16px 0 10px;
    border-top: 1px solid var(--line);
    border-bottom: 1px solid var(--line);
    background: linear-gradient(90deg, var(--paper) 0%, white 5%, white 95%, var(--paper) 100%);
    -webkit-mask-image: linear-gradient(90deg, transparent, black 4%, black 96%, transparent);
    mask-image: linear-gradient(90deg, transparent, black 4%, black 96%, transparent);
  }
  .voices-track {
    display: flex;
    gap: 12px;
    animation: voices-scroll 80s linear infinite;
    width: max-content;
  }
  .voices-marquee:hover .voices-track {
    animation-play-state: paused;
  }
  @keyframes voices-scroll {
    from { transform: translateX(0); }
    to   { transform: translateX(calc(-50% - 6px)); }
  }
  .voice-card {
    flex-shrink: 0;
    width: 280px;
    padding: 11px 14px;
    background: white;
    border: 1px solid var(--line);
    border-left: 3px solid var(--bauhinia);
    transition: transform 0.2s, box-shadow 0.2s;
    display: flex;
    flex-direction: column;
    gap: 6px;
    min-height: 100px;
  }
  .voice-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 16px rgba(107, 43, 142, 0.12);
    border-left-color: var(--gold);
  }
  .voice-meta {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 11px;
  }
  .voice-platform {
    background: #ff2442;
    color: white;
    padding: 1px 5px;
    font-size: 8.5px;
    font-weight: 700;
    letter-spacing: 0.5px;
    border-radius: 2px;
  }
  .voice-author {
    font-weight: 700;
    color: var(--bauhinia);
    flex: 1;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
  }
  .voice-likes {
    font-size: 10px;
    color: var(--muted);
    font-family: 'Inter', sans-serif;
    flex-shrink: 0;
    letter-spacing: 0.5px;
  }
  .voice-quote {
    color: #333;
    font-size: 12px;
    line-height: 1.55;
    flex: 1;
  }
  .voice-quote::before {
    content: '"';
    color: var(--bauhinia);
    font-size: 20px;
    font-weight: 900;
    line-height: 0;
    vertical-align: -4px;
    margin-right: 1px;
    font-family: 'Playfair Display', serif;
  }
  .voice-quote em {
    color: var(--bauhinia);
    font-style: normal;
    font-weight: 700;
    background: rgba(212, 165, 116, 0.20);
    padding: 0 2px;
  }

  /* ==== SLIDE 7 · WHY NOW ==== */
  .whynow-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
    flex: 1;
    min-height: 0;
    margin: 16px 0 20px;
  }
  .whynow-reasons {
    display: flex;
    flex-direction: column;
    gap: 14px;
  }
  .whynow-reason {
    padding: 18px 22px;
    background: white;
    border: 1px solid var(--line);
    border-left: 4px solid var(--bauhinia);
    display: flex;
    gap: 18px;
    align-items: flex-start;
  }
  .whynow-num {
    font-family: 'Playfair Display', serif;
    font-size: 36px;
    font-weight: 900;
    color: var(--bauhinia);
    line-height: 1;
    min-width: 50px;
  }
  .whynow-body { flex: 1; }
  .whynow-body h4 { font-family: 'Noto Serif SC', serif; font-size: 17px; margin-bottom: 6px; }
  .whynow-body p { font-size: 13px; color: var(--muted); line-height: 1.55; }
  .whynow-body .highlight { color: var(--bauhinia); font-weight: 700; }

  .whynow-chart-wrap {
    background: white;
    border: 1px solid var(--line);
    padding: 20px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
  }
  .whynow-compare {
    margin-top: auto;
    padding: 16px 24px;
    background: var(--ink);
    color: var(--gold-bright);
    font-family: 'Noto Serif SC', serif;
    font-size: 16px;
    letter-spacing: 1px;
    text-align: center;
  }
  .whynow-compare strong { color: white; }

  /* ==== SLIDE 8 · MOAT #1 — V0 (left) × V1 (right) ==== */
  .moat1-stats {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 0;
    margin: 0 0 14px;
    border: 1px solid var(--line);
    background: white;
  }
  .moat1-stat {
    padding: 10px 14px;
    text-align: center;
    border-right: 1px solid var(--line);
  }
  .moat1-stat:last-child { border-right: none; }
  .moat1-stat-num {
    font-family: 'Playfair Display', serif;
    font-size: 20px;
    font-weight: 900;
    color: var(--bauhinia);
    line-height: 1;
  }
  .moat1-stat-label {
    font-size: 10px;
    color: var(--muted);
    letter-spacing: 1.5px;
    margin-top: 4px;
    text-transform: uppercase;
  }

  .moat1-split {
    display: grid;
    grid-template-columns: 1.15fr 1fr;
    gap: 16px;
    flex: 1;
    min-height: 0;
  }
  .moat1-side {
    display: flex;
    flex-direction: column;
    background: white;
    border: 1px solid var(--line);
    padding: 14px 18px 16px;
    overflow: hidden;
    position: relative;
  }
  .moat1-side.v0 { border-top: 3px solid var(--ink); }
  .moat1-side.v1 {
    border-top: 3px solid var(--bauhinia);
    background: linear-gradient(180deg, #faf5fb 0%, white 30%);
  }

  .moat1-side-header {
    display: flex;
    align-items: center;
    gap: 10px;
    padding-bottom: 10px;
    border-bottom: 1px solid var(--line);
    margin-bottom: 14px;
    flex-shrink: 0;
  }
  .moat1-side-badge {
    padding: 4px 11px;
    font-family: 'Playfair Display', serif;
    font-size: 13px;
    font-weight: 900;
    letter-spacing: 2px;
  }
  .moat1-side-badge.v0 { background: var(--ink); color: var(--gold); }
  .moat1-side-badge.v1 { background: var(--bauhinia); color: white; }
  .moat1-side-title {
    font-family: 'Noto Serif SC', serif;
    font-size: 14px;
    font-weight: 700;
    color: var(--ink);
  }
  .moat1-side-sub {
    margin-left: auto;
    font-size: 10px;
    color: var(--muted);
    letter-spacing: 1px;
  }
  .moat1-side-sub strong { color: var(--bauhinia); }

  .v0-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 8px;
    flex: 1;
    min-height: 0;
  }
  .v1-grid {
    display: grid;
    grid-template-rows: auto auto auto;
    gap: 8px;
    flex: 1;
    min-height: 0;
    align-content: space-between;
  }

  .module-card {
    padding: 10px 12px;
    background: var(--paper);
    border-left: 3px solid var(--ink);
    display: flex;
    flex-direction: column;
    gap: 2px;
    transition: all 0.2s;
  }
  .module-card:hover {
    transform: translateX(2px);
    background: white;
    box-shadow: 0 2px 8px rgba(0,0,0,0.06);
  }
  .module-card.v1 {
    padding: 9px 12px;
    background: white;
    border-left: 3px solid var(--bauhinia);
    border: 1px solid var(--line);
    border-left: 3px solid var(--bauhinia);
  }
  .module-card-num {
    font-family: 'Playfair Display', serif;
    font-size: 9px;
    font-weight: 700;
    color: var(--muted);
    letter-spacing: 1.5px;
  }
  .module-card-title {
    font-family: 'Noto Serif SC', serif;
    font-size: 13px;
    font-weight: 700;
    line-height: 1.2;
    color: var(--ink);
  }
  .module-card.v1 .module-card-title {
    font-size: 15px;
    color: var(--bauhinia);
  }
  .module-card-en {
    font-family: 'JetBrains Mono', monospace;
    font-size: 9px;
    color: var(--muted);
    letter-spacing: 1px;
    margin-bottom: 4px;
  }
  .module-card.v1 .module-card-en {
    font-size: 10px;
    color: var(--bauhinia-light);
  }
  .module-card-desc {
    font-size: 11px;
    color: #444;
    line-height: 1.5;
  }
  .module-card.v1 .module-card-desc {
    font-size: 11.5px;
    color: #333;
    line-height: 1.45;
  }
  .module-card-desc strong { color: var(--bauhinia); }
  .module-card-meta {
    margin-top: 6px;
    padding-top: 6px;
    border-top: 1px dashed var(--line);
    font-size: 10px;
    color: var(--muted);
    line-height: 1.5;
    font-style: italic;
  }
  .module-card-meta strong { color: var(--ink); font-style: normal; }
  .module-card.v1 .module-card-meta {
    border-top-color: rgba(107,43,142,0.2);
    color: #555;
    font-size: 10.5px;
    margin-top: 4px;
    padding-top: 4px;
  }

  .v0-take {
    grid-column: 1 / -1;
    margin-top: 4px;
    padding: 8px 12px;
    background: var(--ink);
    color: var(--gold);
    font-size: 11px;
    font-family: 'Noto Serif SC', serif;
    letter-spacing: 1px;
    text-align: center;
  }

  /* Bottom 3 moats summary — narrow strip */
  .moat1-bottom-summary {
    display: grid;
    grid-template-columns: auto 1fr 1fr 1fr;
    gap: 8px;
    margin-top: 12px;
    align-items: stretch;
  }
  .moat1-summary-eyebrow {
    padding: 0 16px;
    background: linear-gradient(135deg, var(--bauhinia-dark), var(--bauhinia));
    color: var(--gold);
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: 'Noto Serif SC', serif;
    font-size: 11px;
    font-weight: 800;
    letter-spacing: 3px;
    line-height: 1.2;
    text-align: center;
    min-width: 90px;
  }
  .moat1-summary-card {
    padding: 9px 14px;
    background: var(--ink);
    color: var(--paper);
    border-left: 3px solid var(--gold);
    display: flex;
    flex-direction: column;
    gap: 3px;
  }
  .moat1-summary-card .label {
    font-family: 'Playfair Display', serif;
    font-size: 11px;
    color: var(--gold);
    letter-spacing: 2px;
    font-weight: 800;
  }
  .moat1-summary-card .desc {
    font-size: 11px;
    line-height: 1.5;
    color: rgba(255,255,255,0.88);
  }
  .moat1-summary-card .desc strong {
    color: var(--gold);
    font-weight: 700;
  }

  /* ==== SLIDE 10 · AI 原生互娱组织 ==== */
  .aiio-title {
    font-size: 44px;
    line-height: 1.08;
    margin-bottom: 0;
  }
  .aiio-title strong {
    color: var(--bauhinia);
    font-weight: 900;
  }
  .aiio-subtitle {
    margin-top: 10px;
    font-size: 16px;
    line-height: 1.5;
    color: var(--muted);
    max-width: 1240px;
  }
  .aiio-main-grid {
    display: grid;
    grid-template-columns: 0.98fr 1.02fr;
    gap: 22px;
    margin-top: 18px;
    min-height: 464px;
  }
  .aiio-os-panel {
    background: var(--ink);
    color: white;
    border-left: 5px solid var(--gold);
    padding: 24px 28px;
    display: flex;
    flex-direction: column;
  }
  .aiio-os-panel h2 {
    font-family: 'Noto Serif SC', serif;
    font-size: 27px;
    line-height: 1.32;
    margin-bottom: 14px;
  }
  .aiio-os-panel h2 em {
    color: var(--gold-bright);
    font-style: normal;
    font-weight: 900;
  }
  .aiio-os-desc {
    color: rgba(255,255,255,0.74);
    font-size: 13px;
    line-height: 1.62;
    margin-bottom: 18px;
  }
  .aiio-loop {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 8px;
    margin-bottom: 18px;
  }
  .aiio-loop-node {
    min-height: 84px;
    border: 1px solid rgba(255,255,255,0.16);
    background: rgba(255,255,255,0.06);
    border-top: 4px solid var(--gold);
    padding: 12px 8px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    text-align: center;
    font-size: 14px;
    font-weight: 900;
    line-height: 1.2;
  }
  .aiio-loop-node:nth-child(2) { border-top-color: var(--bauhinia-light); }
  .aiio-loop-node:nth-child(3) { border-top-color: #2D7D64; }
  .aiio-loop-node:nth-child(4) { border-top-color: #2F67A3; }
  .aiio-loop-node:nth-child(5) { border-top-color: var(--gold-bright); }
  .aiio-loop-node small {
    display: block;
    margin-top: 6px;
    color: rgba(255,255,255,0.54);
    font-size: 9px;
    letter-spacing: 1.2px;
    text-transform: uppercase;
  }
  .aiio-role-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
    margin-bottom: 18px;
  }
  .aiio-role {
    border: 1px solid rgba(255,255,255,0.14);
    background: rgba(255,255,255,0.045);
    padding: 13px 14px;
    min-height: 92px;
  }
  .aiio-role-k {
    color: var(--gold);
    font-size: 10px;
    letter-spacing: 2px;
    font-weight: 900;
    text-transform: uppercase;
    margin-bottom: 7px;
  }
  .aiio-role-v {
    font-size: 13px;
    line-height: 1.45;
    color: rgba(255,255,255,0.83);
  }
  .aiio-right-grid {
    display: grid;
    grid-template-rows: auto 1fr;
    gap: 12px;
    min-height: 0;
  }
  .aiio-method-row {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 9px;
  }
  .aiio-phase {
    background: white;
    border: 1px solid var(--line);
    border-top: 4px solid var(--bauhinia);
    padding: 13px;
    min-height: 122px;
  }
  .aiio-phase:nth-child(2) { border-top-color: var(--gold); }
  .aiio-phase:nth-child(3) { border-top-color: #2D7D64; }
  .aiio-phase:nth-child(4) { border-top-color: #2F67A3; }
  .aiio-phase-num {
    font-family: 'Playfair Display', serif;
    font-size: 17px;
    font-weight: 900;
    color: var(--bauhinia);
    margin-bottom: 6px;
  }
  .aiio-phase:nth-child(2) .aiio-phase-num { color: var(--gold); }
  .aiio-phase:nth-child(3) .aiio-phase-num { color: #2D7D64; }
  .aiio-phase:nth-child(4) .aiio-phase-num { color: #2F67A3; }
  .aiio-phase-title {
    font-size: 12px;
    letter-spacing: 1.3px;
    font-weight: 900;
    text-transform: uppercase;
    margin-bottom: 6px;
  }
  .aiio-phase-desc {
    color: var(--muted);
    font-size: 12px;
    line-height: 1.48;
  }
  .aiio-evidence-wrap {
    background: rgba(255,255,255,0.78);
    border: 1px solid var(--line);
    padding: 18px;
  }
  .aiio-section-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
    margin-bottom: 12px;
  }
  .aiio-section-head h2 {
    font-family: 'Noto Serif SC', serif;
    font-size: 23px;
    font-weight: 900;
  }
  .aiio-section-head span {
    color: var(--bauhinia);
    font-size: 10px;
    letter-spacing: 2.5px;
    font-weight: 900;
    text-transform: uppercase;
  }
  .aiio-evidence-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 10px;
  }
  .aiio-evidence {
    background: white;
    border: 1px solid var(--line);
    padding: 14px;
    min-height: 190px;
    display: flex;
    flex-direction: column;
  }
  .aiio-evidence h3 {
    font-family: 'Noto Serif SC', serif;
    font-size: 18px;
    line-height: 1.22;
    font-weight: 900;
    margin-bottom: 9px;
  }
  .aiio-evidence p {
    color: var(--muted);
    font-size: 12px;
    line-height: 1.52;
  }
  .aiio-fact {
    margin-top: auto;
    padding-top: 12px;
    border-top: 1px solid var(--line);
    color: var(--bauhinia);
    font-size: 18px;
    line-height: 1.18;
    font-weight: 900;
  }
  .aiio-fact small {
    display: block;
    margin-top: 5px;
    color: var(--muted);
    font-size: 9px;
    letter-spacing: 1.5px;
    text-transform: uppercase;
  }
  .aiio-slide-footer {
    margin-top: auto;
    padding-top: 18px;
    border-top: 1px solid var(--line);
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
    gap: 28px;
    font-size: 13px;
    line-height: 1.45;
    color: var(--ink);
    letter-spacing: 0.4px;
    flex-shrink: 0;
  }
  .aiio-slide-footer strong {
    color: var(--bauhinia);
    font-weight: 900;
  }

  /* ==== SLIDE 9 · MOAT #2 AI NATIVE PIPELINE (3 categories × 7 pipelines + 2 deep-dives) ==== */
  .pipeline-headline {
    margin-bottom: 6px;
  }
  .pipeline-wrap {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 12px;
    min-height: 0;
  }

  /* —— 顶部:三大类 × 7 管线 概览 —— */
  .pipeline-overview {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr;
    gap: 10px;
  }
  .pipeline-cat {
    background: white;
    border: 1px solid var(--line);
    border-top: 3px solid var(--bauhinia);
    padding: 10px 14px 12px;
    display: flex;
    flex-direction: column;
  }
  .pipeline-cat-head {
    display: flex;
    align-items: baseline;
    gap: 8px;
    margin-bottom: 6px;
    border-bottom: 1px dashed var(--line);
    padding-bottom: 6px;
  }
  .pipeline-cat-num {
    font-family: 'Playfair Display', serif;
    font-size: 22px;
    font-weight: 900;
    color: var(--bauhinia);
    line-height: 1;
  }
  .pipeline-cat-name {
    font-family: 'Noto Serif SC', serif;
    font-size: 14px;
    font-weight: 800;
    line-height: 1.2;
  }
  .pipeline-cat-en {
    font-size: 9px;
    letter-spacing: 1.5px;
    color: var(--muted);
    margin-left: auto;
    text-transform: uppercase;
  }
  .pipeline-list {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
  }
  .pipeline-tag {
    font-size: 11px;
    padding: 4px 9px;
    background: rgba(91, 33, 182, 0.06);
    border: 1px solid rgba(91, 33, 182, 0.18);
    color: var(--bauhinia);
    font-weight: 600;
    line-height: 1.2;
    border-radius: 2px;
  }
  .pipeline-tag.spotlight {
    background: var(--bauhinia);
    color: white;
    border-color: var(--bauhinia);
    position: relative;
  }
  .pipeline-tag.spotlight::after {
    content: '★';
    color: var(--gold);
    margin-left: 4px;
    font-size: 10px;
  }
  .pipeline-cat-foot {
    margin-top: auto;
    padding-top: 8px;
    font-size: 10px;
    color: var(--muted);
    line-height: 1.4;
  }

  /* —— 中部:核心理念条 —— */
  .pipeline-thesis {
    padding: 10px 18px;
    background: var(--ink);
    color: var(--paper);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 18px;
    font-family: 'Noto Serif SC', serif;
    font-size: 13px;
  }
  .pipeline-thesis strong { color: var(--gold); }
  .pipeline-thesis-stat {
    font-family: 'Playfair Display', serif;
    font-size: 22px;
    font-weight: 900;
    color: var(--gold);
    white-space: nowrap;
  }

  /* —— 底部:2 个 spotlight 案例 —— */
  .pipeline-spotlights {
    flex: 1;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
    min-height: 0;
  }
  .spotlight-card {
    background: white;
    border: 1px solid var(--line);
    border-top: 3px solid var(--gold);
    display: flex;
    flex-direction: column;
    overflow: hidden;
    min-height: 0;
  }
  .spotlight-head {
    padding: 10px 16px 8px;
    border-bottom: 1px solid var(--line);
  }
  .spotlight-tag {
    font-size: 9px;
    letter-spacing: 2px;
    color: var(--gold);
    font-weight: 700;
    text-transform: uppercase;
    margin-bottom: 2px;
  }
  .spotlight-title {
    font-family: 'Noto Serif SC', serif;
    font-size: 15px;
    font-weight: 800;
    line-height: 1.25;
    margin-bottom: 2px;
  }
  .spotlight-en {
    font-size: 9px;
    letter-spacing: 1.5px;
    color: var(--muted);
    text-transform: uppercase;
  }
  .spotlight-body {
    flex: 1;
    display: flex;
    flex-direction: column;
    min-height: 0;
    overflow: hidden;
  }
  .spotlight-imgrow {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4px;
    background: #0a0a0a;
    padding: 4px;
    flex-shrink: 0;
  }
  .spotlight-imgrow.cols-1 { grid-template-columns: 1fr; }
  .spotlight-img {
    background: #000;
    aspect-ratio: 2 / 1;
    overflow: hidden;
    cursor: zoom-in;
    position: relative;
    transition: transform 0.2s;
  }
  .spotlight-img:hover { transform: scale(1.01); }
  .spotlight-img img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    display: block;
    background: #000;
  }
  .spotlight-img-cap {
    position: absolute;
    left: 6px;
    bottom: 6px;
    padding: 3px 7px;
    background: rgba(0,0,0,0.75);
    color: var(--gold);
    font-size: 9px;
    letter-spacing: 1px;
    font-weight: 600;
  }
  .spotlight-flow {
    padding: 8px 16px;
    font-size: 10.5px;
    color: var(--ink);
    line-height: 1.5;
    background: rgba(91, 33, 182, 0.04);
    border-top: 1px dashed var(--line);
    border-bottom: 1px dashed var(--line);
  }
  .spotlight-flow strong { color: var(--bauhinia); font-weight: 700; }
  .spotlight-flow-arrow { color: var(--bauhinia); margin: 0 4px; opacity: 0.6; }
  .spotlight-metrics {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0;
    padding: 0;
    border-top: 1px solid var(--line);
  }
  .spotlight-metric {
    padding: 8px 14px;
    border-right: 1px solid var(--line);
  }
  .spotlight-metric:last-child { border-right: none; }
  .spotlight-metric-num {
    font-family: 'Playfair Display', serif;
    font-size: 18px;
    font-weight: 900;
    color: var(--bauhinia);
    line-height: 1;
  }
  .spotlight-metric-label {
    font-size: 9px;
    letter-spacing: 1.2px;
    color: var(--muted);
    margin-top: 3px;
    text-transform: uppercase;
  }

  /* Lightbox for screenshots */
  .lightbox {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.92);
    z-index: 200;
    display: none;
    align-items: center;
    justify-content: center;
    padding: 40px;
    cursor: zoom-out;
  }
  .lightbox.active { display: flex; }
  .lightbox img {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
  }
  .lightbox-close {
    position: absolute;
    top: 8px;
    right: 32px;
    color: white;
    font-size: 32px;
    cursor: pointer;
    width: 40px;
    height: 40px;
    border: 1px solid rgba(255,255,255,0.3);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: transparent;
  }

  /* ==== SLIDE 10 · COMPETITIVE (matrix + interactive) ==== */
  .comp-matrix {
    flex: 1;
    display: grid;
    grid-template-columns: 40px 1fr;
    grid-template-rows: 1fr 40px;
    gap: 0;
    margin: 16px 0 14px;
    min-height: 0;
  }
  .matrix-yaxis {
    grid-column: 1; grid-row: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: space-between;
    padding: 16px 0;
    font-size: 10px;
    font-weight: 700;
    color: var(--bauhinia);
  }
  .matrix-yaxis span {
    writing-mode: vertical-rl;
    text-orientation: upright;
    letter-spacing: 4px;
  }
  .matrix-xaxis {
    grid-column: 2; grid-row: 2;
    display: flex;
    justify-content: space-between;
    padding: 10px 20px;
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 2px;
    color: var(--bauhinia);
    text-transform: uppercase;
  }
  .matrix-box {
    grid-column: 2; grid-row: 1;
    border: 1px solid var(--ink);
    position: relative;
    background:
      linear-gradient(to right, transparent 49.7%, rgba(0,0,0,0.12) 49.7%, rgba(0,0,0,0.12) 50.3%, transparent 50.3%),
      linear-gradient(to bottom, transparent 49.7%, rgba(0,0,0,0.12) 49.7%, rgba(0,0,0,0.12) 50.3%, transparent 50.3%);
    overflow: visible;
  }
  /* Target zone — right-top quadrant subtle gradient */
  .matrix-target-zone {
    position: absolute;
    top: 0; right: 0;
    width: 50%; height: 50%;
    background:
      radial-gradient(ellipse at 80% 30%, rgba(107, 43, 142, 0.10), transparent 60%),
      linear-gradient(135deg, transparent 30%, rgba(212, 165, 116, 0.06) 100%);
    pointer-events: none;
    z-index: 0;
  }
  /* Quadrant labels — corner hints */
  .matrix-quadrant {
    position: absolute;
    font-size: 10px;
    font-weight: 800;
    letter-spacing: 3px;
    text-transform: uppercase;
    pointer-events: none;
    z-index: 0;
    opacity: 0.5;
  }
  .matrix-quadrant small {
    display: block;
    font-size: 9px;
    font-weight: 500;
    letter-spacing: 1px;
    margin-top: 2px;
    opacity: 0.7;
    text-transform: none;
  }
  .matrix-quadrant.tl { top: 12px; left: 14px; color: #555; }
  .matrix-quadrant.tr { top: 12px; right: 14px; text-align: right; color: var(--bauhinia); opacity: 0.7; }
  .matrix-quadrant.bl { bottom: 12px; left: 14px; color: #555; }
  .matrix-quadrant.br { bottom: 12px; right: 14px; text-align: right; color: var(--gold); }

  .comp-chip {
    position: absolute;
    transform: translate(-50%, -50%);
    padding: 4px 9px;
    background: white;
    border: 1px solid var(--line);
    font-size: 10.5px;
    color: #555;
    cursor: pointer;
    transition: all 0.2s;
    white-space: nowrap;
    z-index: 2;
    line-height: 1.3;
  }
  .comp-chip:hover {
    border-color: var(--bauhinia);
    color: var(--bauhinia);
    box-shadow: 0 4px 12px rgba(107,43,142,0.2);
    z-index: 20;
    transform: translate(-50%, -50%) scale(1.08);
  }
  .comp-chip::after {
    content: '';
    position: absolute;
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--bauhinia);
    top: -3px;
    left: 50%;
    transform: translateX(-50%);
    opacity: 0.4;
  }
  .comp-chip.non-game {
    border-style: dashed;
    color: var(--gold);
  }
  .comp-chip.non-game::after { background: var(--gold); }
  .comp-chip.non-game:hover { border-color: var(--gold); color: var(--gold); }

  .comp-chip-tooltip {
    position: absolute;
    bottom: calc(100% + 10px);
    left: 50%;
    transform: translateX(-50%);
    background: var(--ink);
    color: var(--paper);
    padding: 10px 14px;
    border-radius: 3px;
    font-size: 11px;
    line-height: 1.5;
    width: 220px;
    text-align: left;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.2s;
    z-index: 30;
    letter-spacing: 0;
    font-weight: 400;
  }
  .comp-chip-tooltip::after {
    content: '';
    position: absolute;
    top: 100%;
    left: 50%;
    transform: translateX(-50%);
    border: 5px solid transparent;
    border-top-color: var(--ink);
  }
  .comp-chip-tooltip strong { color: var(--gold); }
  .comp-chip:hover .comp-chip-tooltip { opacity: 1; }

  /* AIVILIZATION pin — compact + pulse */
  .matrix-us-pin {
    position: absolute;
    transform: translate(-50%, -50%);
    z-index: 5;
  }
  .matrix-us {
    padding: 7px 14px;
    background: var(--bauhinia);
    color: white;
    font-family: 'Playfair Display', serif;
    font-size: 13px;
    font-weight: 900;
    letter-spacing: 2px;
    box-shadow: 0 6px 18px rgba(107, 43, 142, 0.5);
    text-align: center;
    position: relative;
    white-space: nowrap;
  }
  .matrix-us::before {
    content: '';
    position: absolute;
    inset: -3px;
    border: 1px solid var(--gold);
    pointer-events: none;
  }
  .matrix-us::after {
    content: '';
    position: absolute;
    inset: -8px;
    border: 1px solid var(--gold);
    opacity: 0.6;
    animation: pulse-gold 2.4s ease-out infinite;
    pointer-events: none;
  }
  @keyframes pulse-gold {
    0%   { transform: scale(1); opacity: 0.7; }
    100% { transform: scale(1.4); opacity: 0; }
  }
  .matrix-us-sub {
    font-size: 8px;
    opacity: 0.85;
    letter-spacing: 2px;
    font-family: 'Inter';
    font-weight: 500;
    margin-top: 3px;
    color: var(--gold);
  }

  .matrix-legend {
    display: flex;
    gap: 20px;
    font-size: 11px;
    color: var(--muted);
    margin-bottom: 10px;
  }
  .matrix-legend-dot {
    display: inline-block;
    width: 20px;
    height: 1px;
    border-top: 1px solid var(--line);
    margin-right: 6px;
    vertical-align: middle;
  }
  .matrix-legend-dot.dashed { border-top-style: dashed; border-top-color: var(--gold); }

  .matrix-note {
    padding: 12px 18px;
    background: #F5F1EC;
    border-left: 3px solid var(--gold);
    font-size: 12px;
    color: #4a4a4a;
    font-style: italic;
    margin-top: auto;
  }
  .matrix-three {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: 12px;
    margin-top: 12px;
  }
  .matrix-three-col {
    padding: 12px 16px;
    background: white;
    border: 1px solid var(--line);
    border-top: 3px solid #999;
    font-size: 12px;
    line-height: 1.55;
    color: #555;
  }
  .matrix-three-col.us {
    border-top-color: var(--bauhinia);
    background: linear-gradient(135deg, #faf5fb 0%, white 50%);
  }
  .matrix-three-col-label {
    font-family: 'Noto Serif SC', serif;
    font-size: 13px;
    font-weight: 800;
    color: var(--ink);
    margin-bottom: 4px;
    letter-spacing: 1px;
  }
  .matrix-three-col.us .matrix-three-col-label {
    color: var(--bauhinia);
  }
  .matrix-three-col-label small {
    font-family: 'Inter', sans-serif;
    font-weight: 500;
    font-size: 9px;
    color: var(--muted);
    letter-spacing: 2px;
    margin-left: 6px;
    text-transform: uppercase;
  }

  /* ==== SLIDE 11 · ROADMAP — single timeline with zigzag nodes ==== */
  .roadmap-wrap {
    flex: 1;
    display: flex;
    flex-direction: column;
    margin: 18px 0 0;
    min-height: 0;
  }

  /* Phase labels above */
  .rm-phase-row {
    display: flex;
    height: 30px;
    margin-bottom: 6px;
    position: relative;
  }
  .rm-phase {
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: 'Playfair Display', serif;
    font-size: 13px;
    font-weight: 800;
    letter-spacing: 3px;
    text-transform: uppercase;
    color: white;
  }
  .rm-phase small {
    font-family: 'Inter', sans-serif;
    font-size: 9px;
    margin-left: 8px;
    opacity: 0.7;
    letter-spacing: 1.5px;
  }
  .rm-phase.past { background: #4a4a52; }
  .rm-phase.now { background: var(--bauhinia); }
  .rm-phase.future { background: linear-gradient(90deg, var(--bauhinia-light), var(--gold)); }

  .rm-canvas {
    position: relative;
    flex: 1;
    min-height: 280px;
    margin: 0 30px;
  }

  /* Center timeline */
  .rm-axis {
    position: absolute;
    top: 50%;
    left: 0; right: 0;
    height: 4px;
    transform: translateY(-50%);
    z-index: 1;
  }
  .rm-axis-seg {
    position: absolute;
    top: 0; bottom: 0;
  }
  .rm-axis-seg.past { left: 0; width: 50%; background: #c9c9d1; }
  .rm-axis-seg.now { left: 50%; width: 30%; background: var(--bauhinia); }
  .rm-axis-seg.future { left: 80%; right: 0; background: linear-gradient(90deg, var(--bauhinia-light), var(--gold)); }

  /* NOW vertical line — within canvas, doesn't escape top */
  .rm-now-line {
    position: absolute;
    top: 0; bottom: 0;
    left: 69%;
    width: 0;
    border-left: 2px dashed var(--gold);
    z-index: 3;
  }
  .rm-now-pill {
    position: absolute;
    top: 6px;
    left: 69%;
    transform: translateX(-50%);
    background: var(--gold);
    color: white;
    padding: 5px 12px;
    font-size: 11px;
    font-weight: 800;
    letter-spacing: 2px;
    z-index: 4;
    white-space: nowrap;
    box-shadow: 0 4px 10px rgba(212, 165, 116, 0.4);
  }

  /* Year markers along axis */
  .rm-year {
    position: absolute;
    top: 50%;
    transform: translate(-50%, 12px);
    font-family: 'Playfair Display', serif;
    font-size: 11px;
    font-weight: 700;
    color: var(--muted);
    letter-spacing: 1px;
    pointer-events: none;
  }

  /* Node */
  .rm-node {
    position: absolute;
    width: 105px;
    transform: translateX(-50%);
    z-index: 2;
    cursor: default;
  }
  .rm-node-card {
    padding: 8px 10px;
    background: white;
    border: 1px solid var(--line);
    border-left: 3px solid var(--bauhinia);
    transition: all 0.2s;
    position: relative;
  }
  .rm-node:hover .rm-node-card {
    transform: translateY(-2px);
    box-shadow: 0 6px 16px rgba(0,0,0,0.1);
  }
  .rm-node-date {
    font-family: 'Playfair Display', serif;
    font-size: 13px;
    font-weight: 900;
    color: var(--bauhinia);
    line-height: 1;
  }
  .rm-node-event {
    font-family: 'Noto Serif SC', serif;
    font-size: 11px;
    color: var(--ink);
    margin-top: 4px;
    line-height: 1.3;
    font-weight: 700;
  }
  .rm-node-meta {
    font-size: 10px;
    color: var(--muted);
    margin-top: 2px;
    line-height: 1.3;
  }

  /* Connector pin from node to axis */
  .rm-node-pin {
    position: absolute;
    width: 10px; height: 10px;
    border-radius: 50%;
    background: var(--bauhinia);
    border: 2px solid white;
    box-shadow: 0 0 0 1px var(--bauhinia);
    left: 50%;
    transform: translateX(-50%);
    z-index: 3;
  }
  .rm-node-line {
    position: absolute;
    width: 1px;
    background: var(--line);
    left: 50%;
    z-index: 1;
  }

  /* Top nodes — sit above axis */
  .rm-node.top {
    bottom: 50%;
    padding-bottom: 18px;
  }
  .rm-node.top .rm-node-pin { bottom: 0; }
  .rm-node.top .rm-node-line {
    bottom: 4px;
    height: 16px;
  }
  /* Bottom nodes */
  .rm-node.bottom {
    top: 50%;
    padding-top: 18px;
  }
  .rm-node.bottom .rm-node-pin { top: 0; }
  .rm-node.bottom .rm-node-line {
    top: 4px;
    height: 16px;
  }
  .rm-node.bottom .rm-node-card { border-left-color: var(--bauhinia); }

  /* Hero & Gold styles */
  .rm-node.hero .rm-node-card {
    background: var(--bauhinia);
    color: white;
    border-color: var(--bauhinia);
    box-shadow: 0 6px 14px rgba(107, 43, 142, 0.35);
  }
  .rm-node.hero .rm-node-date { color: var(--gold); }
  .rm-node.hero .rm-node-event { color: white; }
  .rm-node.hero .rm-node-meta { color: rgba(255,255,255,0.75); }
  .rm-node.hero .rm-node-pin { background: var(--gold); box-shadow: 0 0 0 1px var(--gold); }

  .rm-node.gold .rm-node-card {
    background: linear-gradient(135deg, var(--gold-bright), var(--gold));
    color: white;
    border-color: var(--gold);
    box-shadow: 0 6px 14px rgba(212, 165, 116, 0.45);
  }
  .rm-node.gold .rm-node-date { color: white; }
  .rm-node.gold .rm-node-event { color: white; }
  .rm-node.gold .rm-node-pin { background: var(--gold); box-shadow: 0 0 0 1px white; }
  .rm-node.gold .rm-node-card::before {
    content: '★';
    position: absolute;
    top: 4px; right: 6px;
    color: rgba(255,255,255,0.7);
    font-size: 10px;
  }

  .roadmap-milestone {
    margin-top: 16px;
    padding: 14px 22px;
    background: linear-gradient(135deg, var(--ink), #1d1424);
    color: var(--paper);
    font-family: 'Noto Serif SC', serif;
    font-size: 13px;
    line-height: 1.7;
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: 18px;
  }
  .roadmap-milestone strong { color: var(--gold); display: block; font-size: 11px; letter-spacing: 1.5px; margin-bottom: 4px; }

  /* ==== SLIDE 13 · RAISe+ ==== */
  .rp-title {
    font-size: 44px;
    line-height: 1.12;
    margin-bottom: 10px;
  }
  .rp-title strong {
    color: var(--bauhinia);
    font-weight: 900;
  }
  .rp-subtitle {
    color: var(--muted);
    font-size: 17px;
    line-height: 1.55;
    max-width: 1280px;
    margin-bottom: 18px;
  }
  .rp-hero {
    display: grid;
    grid-template-columns: 0.92fr 1fr 1fr;
    gap: 18px;
    margin-bottom: 18px;
  }
  .rp-big-card {
    background: linear-gradient(145deg, var(--ink), #1b1023);
    color: white;
    border-left: 5px solid var(--gold);
    padding: 28px 30px;
    min-height: 292px;
  }
  .rp-big-label {
    color: var(--gold);
    font-size: 12px;
    letter-spacing: 3px;
    font-weight: 900;
    text-transform: uppercase;
    margin-bottom: 26px;
  }
  .rp-big-num {
    font-family: 'Playfair Display', serif;
    font-size: 112px;
    line-height: 0.8;
    font-weight: 900;
    color: var(--gold-bright);
    margin-bottom: 22px;
  }
  .rp-big-copy {
    font-family: 'Noto Serif SC', serif;
    font-size: 24px;
    line-height: 1.38;
    font-weight: 900;
  }
  .rp-card {
    background: white;
    border: 1px solid var(--line);
    border-top: 4px solid var(--bauhinia);
    padding: 24px;
    min-height: 292px;
    display: flex;
    flex-direction: column;
  }
  .rp-card:nth-child(3) { border-top-color: #2D7D64; }
  .rp-card-k {
    color: var(--bauhinia);
    font-size: 10px;
    letter-spacing: 2.2px;
    font-weight: 900;
    text-transform: uppercase;
    margin-bottom: 16px;
  }
  .rp-card:nth-child(3) .rp-card-k { color: #2D7D64; }
  .rp-card h2 {
    font-family: 'Noto Serif SC', serif;
    font-size: 29px;
    line-height: 1.22;
    margin-bottom: 14px;
  }
  .rp-card p {
    color: var(--muted);
    font-size: 15px;
    line-height: 1.68;
  }
  .rp-card strong {
    color: var(--bauhinia);
    font-weight: 900;
  }
  .rp-official-link {
    margin-top: auto;
    align-self: flex-start;
    color: var(--bauhinia);
    font-size: 12px;
    line-height: 1.2;
    font-weight: 800;
    letter-spacing: 0.5px;
    text-decoration: none;
    border-bottom: 1px solid rgba(107,43,142,0.35);
    padding-bottom: 2px;
  }
  .rp-official-link:hover {
    color: var(--bauhinia-dark);
    border-bottom-color: var(--bauhinia-dark);
  }
  .rp-proof-row {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 12px;
    margin-bottom: 14px;
  }
  .rp-proof {
    background: rgba(255,255,255,0.82);
    border: 1px solid var(--line);
    padding: 14px 16px;
    min-height: 106px;
  }
  .rp-proof strong {
    display: block;
    font-family: 'Noto Serif SC', serif;
    font-size: 17px;
    line-height: 1.25;
    margin-bottom: 6px;
  }
  .rp-proof span {
    color: var(--muted);
    font-size: 11px;
    line-height: 1.45;
  }
  .rp-proof em {
    color: var(--bauhinia);
    font-style: normal;
    font-weight: 900;
  }
  .rp-timeline {
    background: rgba(255,255,255,0.78);
    border: 1px solid var(--line);
    padding: 20px 20px 18px;
  }
  .rp-section-head {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    margin-bottom: 14px;
  }
  .rp-section-head h2 {
    font-family: 'Noto Serif SC', serif;
    font-size: 24px;
    font-weight: 900;
  }
  .rp-section-head span {
    color: var(--bauhinia);
    font-size: 10px;
    letter-spacing: 2.5px;
    font-weight: 900;
    text-transform: uppercase;
  }
  .rp-time-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 10px;
  }
  .rp-time-card {
    background: white;
    border: 1px solid var(--line);
    padding: 14px 12px;
    min-height: 116px;
    position: relative;
  }
  .rp-time-card::before {
    content: '';
    position: absolute;
    left: 12px;
    right: 12px;
    top: 0;
    height: 4px;
    background: var(--bauhinia);
  }
  .rp-time-card:nth-child(2)::before { background: var(--gold); }
  .rp-time-card:nth-child(3)::before { background: #2D7D64; }
  .rp-time-card:nth-child(4)::before { background: #2F67A3; }
  .rp-time-date {
    font-family: 'Playfair Display', serif;
    font-size: 18px;
    font-weight: 900;
    color: var(--bauhinia);
    margin-bottom: 8px;
  }
  .rp-time-title {
    font-size: 14px;
    font-weight: 900;
    margin-bottom: 6px;
  }
  .rp-time-desc {
    color: var(--muted);
    font-size: 11px;
    line-height: 1.45;
  }
  .rp-footer {
    margin-top: 14px;
    padding: 12px 18px;
    background: linear-gradient(90deg, rgba(107,43,142,0.10), rgba(212,165,116,0.14));
    border-left: 4px solid var(--bauhinia);
    font-size: 14px;
    line-height: 1.5;
    font-weight: 800;
  }
  .rp-footer strong { color: var(--bauhinia); }

  /* ==== SLIDE 12 · TEAM ==== */
  .team-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 14px;
    margin: 12px 0;
  }
  .team-card {
    padding: 14px 14px 16px;
    background: white;
    border: 1px solid var(--line);
    text-align: center;
    display: flex;
    flex-direction: column;
    transition: all 0.3s;
  }
  .team-card:hover { transform: translateY(-4px); box-shadow: 0 12px 24px rgba(0,0,0,0.08); }
  .team-avatar {
    width: 88px;
    height: 88px;
    border-radius: 50%;
    margin: 0 auto 10px;
    overflow: hidden;
    border: 3px solid var(--bauhinia);
    box-shadow: 0 4px 12px rgba(107, 43, 142, 0.2);
    background: linear-gradient(135deg, var(--bauhinia-dark), var(--bauhinia));
  }
  .team-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
  }
  .team-name { font-family: 'Noto Serif SC', serif; font-size: 17px; font-weight: 900; }
  .team-name-en { font-size: 10px; color: var(--muted); letter-spacing: 2px; margin-bottom: 8px; }
  .team-role {
    font-size: 10.5px;
    color: var(--bauhinia);
    font-weight: 700;
    letter-spacing: 1px;
    padding: 5px 0;
    border-top: 1px solid var(--line);
    border-bottom: 1px solid var(--line);
    margin-bottom: 10px;
  }
  .team-bio {
    font-size: 10.5px;
    color: var(--muted);
    line-height: 1.55;
    text-align: left;
  }
  .team-bio strong { color: var(--ink); }

  /* Team showcase: integrated transparent PNG layout */
  .team-showcase {
    position: relative;
    margin-top: auto;
    min-height: 0;
    flex: 1;
    background:
      radial-gradient(ellipse at 20% 50%, rgba(107, 43, 142, 0.06), transparent 60%),
      linear-gradient(135deg, #faf7fb 0%, white 50%, #f7f3ee 100%);
    border: 1px solid var(--line);
    overflow: hidden;
    padding: 18px 28px 14px;
    display: grid;
    grid-template-columns: 1fr 1.4fr;
    gap: 0;
  }

  /* Team photos as overlay elements (cross-fading slideshow on the right) */
  .team-photo-overlay {
    position: absolute;
    bottom: -2%;
    right: -1%;
    height: 105%;
    width: auto;
    object-fit: contain;
    object-position: bottom right;
    pointer-events: none;
    z-index: 1;
    /* Subtle fade on the left edge to blend with content */
    -webkit-mask-image: linear-gradient(to right, transparent 0%, black 12%, black 100%);
    mask-image: linear-gradient(to right, transparent 0%, black 12%, black 100%);
    transition: opacity 1.4s ease-in-out;
  }
  .team-photo-overlay.is-hidden { opacity: 0; }

  /* Left content overlaid on top */
  .team-content {
    position: relative;
    z-index: 2;
    display: flex;
    flex-direction: column;
    gap: 14px;
    padding-right: 20px;
  }

  .team-brand {
    display: flex;
    align-items: baseline;
    gap: 10px;
  }
  .team-brand-num {
    font-family: 'Playfair Display', serif;
    font-size: 48px;
    font-weight: 900;
    color: var(--bauhinia);
    line-height: 1;
    letter-spacing: -1px;
  }
  .team-brand-text {
    display: flex;
    flex-direction: column;
  }
  .team-brand-main {
    font-family: 'Noto Serif SC', serif;
    font-size: 16px;
    font-weight: 900;
    color: var(--ink);
    line-height: 1.1;
  }
  .team-brand-sub {
    font-size: 11px;
    color: var(--muted);
    letter-spacing: 2px;
    margin-top: 2px;
  }

  .team-breakdown {
    display: flex;
    align-items: center;
    gap: 4px;
    font-family: 'Playfair Display', serif;
    font-size: 22px;
    font-weight: 900;
    color: var(--bauhinia);
    padding: 8px 0;
    border-top: 1px solid rgba(107,43,142,0.15);
    border-bottom: 1px solid rgba(107,43,142,0.15);
  }
  .team-breakdown small {
    font-family: 'Inter', sans-serif;
    font-size: 9px;
    color: var(--muted);
    letter-spacing: 1.5px;
    font-weight: 500;
    margin-left: 4px;
  }
  .team-breakdown .sep {
    color: var(--muted);
    margin: 0 6px;
    font-weight: 400;
  }

  .team-mini-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 8px;
  }
  .team-mini-stat {
    text-align: left;
  }
  .team-mini-stat-num {
    font-family: 'Playfair Display', serif;
    font-size: 20px;
    font-weight: 900;
    color: var(--ink);
    line-height: 1;
  }
  .team-mini-stat-label {
    font-size: 10px;
    color: var(--muted);
    letter-spacing: 1px;
    margin-top: 3px;
  }
  .team-mini-stat-label .age-tag {
    color: var(--bauhinia);
    font-weight: 700;
    margin-left: 2px;
  }

  /* 显眼的低调:谦虚 + 俏皮 + 自信 */
  .modest {
    display: inline-block;
    font-size: 0.62em;
    font-weight: 600;
    font-style: italic;
    color: var(--bauhinia-light);
    opacity: 0.82;
    letter-spacing: 0;
    vertical-align: middle;
    position: relative;
    top: -0.08em;
    cursor: default;
    padding: 1px 6px;
    background: rgba(157, 78, 221, 0.10);
    border-radius: 10px;
    animation: modest-bob 3.4s ease-in-out infinite;
    transition: all 0.3s;
  }
  .modest:hover {
    color: white;
    background: var(--bauhinia);
    opacity: 1;
    transform: translateY(-2px) rotate(-2deg) scale(1.08);
    box-shadow: 0 4px 12px rgba(107, 43, 142, 0.35);
  }
  @keyframes modest-bob {
    0%, 100% { transform: translateY(0); }
    50%      { transform: translateY(-3px); }
  }
  .modest.delay { animation-delay: 1.5s; }

  .team-tagline {
    margin-top: auto;
    padding: 10px 14px;
    background: var(--ink);
    color: var(--gold);
    font-size: 12px;
    line-height: 1.5;
    font-family: 'Noto Serif SC', serif;
    letter-spacing: 0.5px;
    align-self: flex-start;
    max-width: 380px;
  }
  .team-tagline strong { color: white; font-weight: 700; }

  /* ==== SLIDE 13 · ASK ==== */
  .ask-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
    flex: 1;
    min-height: 0;
    margin: 14px 0;
  }
  .ask-terms {
    padding: 32px;
    background: var(--ink);
    color: var(--paper);
    display: flex;
    flex-direction: column;
    justify-content: center;
  }
  .ask-main {
    font-family: 'Playfair Display', serif;
    font-size: 58px;
    font-weight: 900;
    color: var(--gold);
    line-height: 1;
    margin-bottom: 10px;
  }
  .ask-round {
    font-size: 16px;
    letter-spacing: 3px;
    margin-bottom: 28px;
    color: rgba(255,255,255,0.8);
  }
  .ask-term {
    display: flex;
    justify-content: space-between;
    padding: 12px 0;
    border-bottom: 1px solid rgba(255,255,255,0.15);
    font-size: 13px;
  }
  .ask-term:last-child { border-bottom: none; }
  .ask-term-k { color: rgba(255,255,255,0.6); letter-spacing: 1px; }
  .ask-term-v { font-weight: 700; color: white; }

  /* Highlighted current round row */
  .ask-term.current {
    margin: 6px -16px;
    padding: 14px 16px;
    background: linear-gradient(90deg, rgba(212, 165, 116, 0.18), rgba(212, 165, 116, 0.05));
    border-left: 3px solid var(--gold);
    border-bottom: none;
    position: relative;
  }
  .ask-term.current::before {
    content: '★';
    position: absolute;
    left: -1px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--gold);
    font-size: 10px;
    background: transparent;
    padding: 0;
  }
  .ask-term.current .ask-term-k {
    color: var(--gold);
    font-weight: 800;
    letter-spacing: 2px;
    font-size: 14px;
  }
  .ask-term.current .ask-term-v {
    color: var(--gold);
    font-size: 16px;
    font-weight: 800;
  }

  .ask-uses {
    padding: 28px;
    background: #FEFDFC;
    border: 1px solid #E5DFE7;
    display: flex;
    flex-direction: column;
    min-height: 0;
  }
  .ask-uses-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
  }
  .ask-uses-eyebrow {
    font-size: 10px;
    font-weight: 700;
    letter-spacing: 2.5px;
    color: var(--bauhinia);
    margin-bottom: 7px;
  }
  .ask-uses-header h2 {
    font-family: 'Noto Serif SC', serif;
    font-size: 24px;
    font-weight: 900;
    line-height: 1.3;
    margin: 0;
  }
  .ask-uses-total {
    text-align: right;
    flex-shrink: 0;
  }
  .ask-uses-total strong {
    display: block;
    font-family: 'Playfair Display', serif;
    font-size: 36px;
    line-height: 1;
    font-weight: 900;
    color: var(--ink);
  }
  .ask-uses-total strong span {
    font-size: 22px;
    margin-left: 3px;
    color: #8B7C91;
  }
  .ask-uses-total-label {
    display: block;
    font-size: 10px;
    color: var(--muted);
    margin-top: 7px;
    letter-spacing: 1px;
  }
  .ask-allocation-strip {
    display: flex;
    gap: 4px;
    height: 10px;
    flex-shrink: 0;
    margin: 22px 0;
    overflow: hidden;
    border-radius: 3px;
  }
  .ask-allocation-strip span {
    background: var(--allocation-color);
    min-width: 0;
  }
  .ask-allocation-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    grid-template-rows: repeat(2, minmax(0, 1fr));
    gap: 14px;
    flex: 1;
    min-height: 0;
  }
  .ask-allocation-card {
    position: relative;
    padding: 20px 22px;
    background: #FFFFFF;
    border: 1px solid #E8E3E9;
    border-radius: 6px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    min-width: 0;
    overflow: hidden;
  }
  .ask-allocation-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--allocation-color);
  }
  .ask-allocation-card.primary {
    background: #F6F0FA;
    border-color: #DFCEE9;
  }
  .ask-allocation-card-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 14px;
  }
  .ask-allocation-index {
    color: #7A6B82;
    font-family: 'Inter', sans-serif;
    font-size: 10px;
    font-weight: 700;
    letter-spacing: 1.5px;
  }
  .ask-allocation-share {
    color: #62516E;
    font-size: 12px;
    font-weight: 800;
    font-variant-numeric: tabular-nums;
  }
  .ask-allocation-amount {
    font-family: 'Playfair Display', serif;
    font-size: 40px;
    font-weight: 900;
    line-height: 1.1;
    letter-spacing: -1px;
    color: var(--ink);
    white-space: nowrap;
  }
  .ask-allocation-card.primary .ask-allocation-amount {
    color: var(--bauhinia);
  }
  .ask-allocation-amount span {
    font-size: 22px;
    margin-left: 4px;
    font-weight: 600;
    color: #95879C;
  }
  .ask-allocation-card h3 {
    margin: 12px 0 0;
    font-size: 16px;
    line-height: 1.4;
    font-weight: 700;
    color: #4B4053;
  }

  .ask-milestones {
    margin-top: auto;
    padding: 18px 24px;
    background: #F5F1EC;
    border-left: 3px solid var(--gold);
    font-size: 13px;
    line-height: 1.8;
    color: #4a4a4a;
  }
  .ask-milestones strong { color: var(--ink); font-weight: 700; }

  /* === Navigation: side arrows + corner counter === */
  .nav-arrow {
    position: fixed;
    top: 50%;
    transform: translateY(-50%);
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: rgba(10, 10, 10, 0.7);
    border: 1px solid rgba(255, 255, 255, 0.5);
    backdrop-filter: blur(8px);
    color: white;
    cursor: pointer;
    font-size: 20px;
    line-height: 1;
    z-index: 100;
    opacity: 0.18;
    transition: opacity 0.25s, transform 0.25s, background 0.25s;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0;
    font-family: 'Inter', sans-serif;
  }
  .nav-arrow:hover {
    opacity: 1;
    background: rgba(107, 43, 142, 0.95);
    border-color: var(--gold);
  }
  .nav-arrow:disabled {
    opacity: 0;
    pointer-events: none;
  }
  .nav-arrow.prev { left: 18px; }
  .nav-arrow.next { right: 18px; }

  /* Mouse near edges → boost opacity */
  .deck:hover .nav-arrow { opacity: 0.35; }

  .progress {
    position: absolute;
    top: 0; left: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--bauhinia), var(--gold));
    z-index: 101;
    transition: width 0.4s ease;
  }

  .slide-footer {
    margin-top: auto;
    padding-top: 14px;
    border-top: 1px solid var(--line);
    display: flex;
    justify-content: space-between;
    font-size: 10px;
    color: var(--muted);
    letter-spacing: 2px;
    flex-shrink: 0;
  }
  .footer-brand { font-family: 'Playfair Display', serif; }

  .slide::after {
    content: "Confidential · Please do not forward";
    position: absolute;
    top: 22px;
    right: 34px;
    z-index: 20;
    pointer-events: none;
    padding: 7px 11px 6px;
    border: 1px solid rgba(109, 27, 141, 0.22);
    border-radius: 999px;
    background: rgba(109, 27, 141, 0.08);
    box-shadow: 0 6px 18px rgba(54, 38, 20, 0.08);
    font-size: 11px;
    line-height: 1;
    letter-spacing: 1px;
    color: rgba(68, 42, 76, 0.78);
    font-weight: 700;
    white-space: nowrap;
  }
  .cover::after {
    top: 24px;
    border-color: rgba(255, 255, 255, 0.28);
    background: rgba(255, 255, 255, 0.12);
    box-shadow: 0 6px 18px rgba(0, 0, 0, 0.12);
    color: rgba(255, 255, 255, 0.84);
  }

  /* ==== PRINT TO PDF — 16:9 横版幻灯片 ==== */
  @media print {
    @page {
      size: 1600px 900px;
      margin: 0;
    }
    html, body {
      width: 1600px;
      height: 900px;
      margin: 0;
      padding: 0;
      background: var(--paper);
      overflow: hidden;
    }
    .deck {
      width: 1600px !important;
      height: 900px !important;
      transform: none !important;
      margin: 0 !important;
      page-break-inside: avoid;
    }
    .slide.active {
      opacity: 1 !important;
      transform: none !important;
      page-break-inside: avoid;
    }
    .nav-arrow,
    .page-hint,
    .nav-counter-corner,
    .keyboard-hint {
      display: none !important;
    }
    /* 防止视频在 PDF 中变成乱块 */
    video {
      object-fit: contain;
    }
  }

/* Technical architecture and training slides. */
.tech2-slide { padding: 40px 80px 28px; }
.tech2-slide .slide-header { margin-bottom: 20px; }
.tech2-slide .eyebrow { margin-bottom: 12px; letter-spacing: 3px; }
.tech2-title { font-size: 40px; line-height: 1.22; letter-spacing: -0.8px; margin-bottom: 12px; }
.tech2-title span { color: var(--bauhinia); }
.tech2-intro { font-size: 17px; line-height: 1.55; color: #655C69; margin-bottom: 22px; }
.tech2-runtime-layout { display: grid; grid-template-columns: 1.85fr 1fr; gap: 32px; flex: 1; min-height: 0; margin-bottom: 22px; }
.tech2-runtime { background: #211329; color: white; padding: 24px; display: flex; flex-direction: column; }
.tech2-runtime-head { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-bottom: 22px; }
.tech2-runtime-head strong { font-size: 16px; font-weight: 600; color: #EADCF2; }
.tech2-runtime-head > span { font-size: 11px; color: #BEAAC9; }
.tech2-agent-flow { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 21px; }
.tech2-agent-node { padding: 16px 13px; border: 1px solid #70557F; background: #302039; position: relative; }
.tech2-agent-node:not(:last-child)::after { content: '→'; position: absolute; top: 48px; right: -20px; color: #D4A574; font-size: 20px; }
.tech2-agent-node.core { background: #653180; border-color: #A573C3; }
.tech2-agent-node > span { font-size: 9px; font-weight: 700; letter-spacing: 1px; color: #D8BFDF; }
.tech2-agent-node h2 { font-size: 19px; font-weight: 800; margin-top: 12px; margin-bottom: 9px; white-space: nowrap; }
.tech2-agent-node p { font-size: 13px; line-height: 1.65; color: #E0D3E6; }
.tech2-memory { border-top: 1px solid #6F557C; margin-top: auto; padding-top: 20px; }
.tech2-memory-title { font-size: 15px; color: #E5C69E; font-weight: 700; margin-bottom: 12px; }
.tech2-memory-items { display: flex; justify-content: space-between; gap: 12px; font-size: 13px; color: #F0E5F6; }
.tech2-memory-items span + span { border-left: 1px solid #6B5077; padding-left: 15px; }
.tech2-memory-note { font-size: 12px; line-height: 1.6; margin-top: 15px; color: #BEABC9; }
.tech2-player-outcomes { display: flex; flex-direction: column; justify-content: space-between; }
.tech2-player-outcomes article { border-top: 1px solid #DCD1E1; padding-top: 14px; }
.tech2-player-outcomes article > span { display: block; color: var(--bauhinia); font-size: 11px; font-weight: 700; letter-spacing: 1px; margin-bottom: 9px; }
.tech2-player-outcomes h2 { font-family: 'Noto Serif SC', serif; font-size: 22px; margin-bottom: 8px; }
.tech2-player-outcomes p { font-size: 16px; line-height: 1.65; color: #62566A; }
.tech2-research-label { font-size: 12px; letter-spacing: 1px; font-weight: 700; color: #77637F; margin-bottom: 12px; }
.tech2-research-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 28px; flex-shrink: 0; }
.tech2-research-grid article { border-top: 3px solid var(--bauhinia); padding-top: 13px; }
.tech2-research-grid article:nth-child(2) { border-color: #28796D; }
.tech2-research-grid article:nth-child(3) { border-color: #AE803D; }
.tech2-research-grid h2 { font-size: 18px; margin-bottom: 13px; }
.tech2-research-grid article > div { display: flex; align-items: center; gap: 14px; }
.tech2-research-grid article strong { font-family: 'Inter', sans-serif; font-size: 42px; letter-spacing: -1.5px; line-height: 1.1; color: var(--bauhinia); white-space: nowrap; }
.tech2-research-grid article:nth-child(2) strong { color: #28796D; }
.tech2-research-grid article:nth-child(3) strong { color: #9A6B2F; }
.tech2-research-grid strong span { font-size: 23px; margin-left: 2px; }
.tech2-research-grid p { font-size: 15px; line-height: 1.55; color: #3F3348; font-weight: 700; }
.tech2-research-grid small { display: block; font-size: 11px; font-weight: 400; color: #786A80; margin-top: 3px; }
.tech2-source { border-top: 1px solid #DED5E2; padding-top: 10px; margin-top: 17px; color: #776A7D; font-size: 11px; line-height: 1.5; flex-shrink: 0; }
.tech2-learning-layout { display: grid; grid-template-columns: 1.9fr 1fr; gap: 36px; flex: 1; min-height: 0; margin-bottom: 20px; }
.tech2-learning { display: flex; flex-direction: column; }
.tech2-learning-heading, .tech2-loop-heading { display: flex; justify-content: space-between; align-items: baseline; gap: 15px; margin-bottom: 14px; }
.tech2-learning-heading h2, .tech2-loop-heading h2, .tech2-proof > h2 { font-family: 'Noto Serif SC', serif; font-size: 22px; }
.tech2-learning-heading > span, .tech2-loop-heading > span { font-size: 11px; color: #8A7894; }
.tech2-teachers { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 12px; }
.tech2-teachers > div { border: 1px solid #CDBBD7; background: #F2ECF6; padding: 12px 14px; }
.tech2-teachers span { font-size: 16px; font-weight: 700; display: block; color: #512F66; }
.tech2-teachers small { display: block; font-size: 12px; color: #7A6785; margin-top: 6px; }
.tech2-training-arrow { text-align: center; font-size: 12px; color: #6A3E82; padding: 10px 0; }
.tech2-model { padding: 14px 18px; display: flex; align-items: center; justify-content: space-between; gap: 15px; background: #54266B; color: white; }
.tech2-model strong { font-size: 19px; }
.tech2-model span { font-size: 12px; color: #D7BFDF; }
.tech2-reward-heading { color: #644373; font-size: 13px; font-weight: 700; margin: 16px 0 10px; }
.tech2-rewards { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 12px; }
.tech2-rewards > div { padding: 10px 12px; background: #F0EBF2; border-left: 3px solid #A983BC; }
.tech2-rewards b { display: block; font-size: 14px; color: #4C3A58; }
.tech2-rewards span { display: block; font-size: 11px; color: #7C6B85; margin-top: 5px; }
.tech2-rubrics { font-size: 11px; line-height: 1.6; color: #796B80; margin-top: 10px; }
.tech2-loop-heading { margin-top: auto; padding-top: 20px; border-top: 1px solid #DED5E2; }
.tech2-loop-heading h2 { font-size: 19px; }
.tech2-learning-loop { display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); gap: 17px; }
.tech2-learning-loop div { border: 1px solid #BFAACB; color: #4D305E; text-align: center; font-size: 12px; font-weight: 700; padding: 15px 6px; position: relative; }
.tech2-learning-loop div:not(:last-child)::after { content: '→'; position: absolute; right: -15px; top: 12px; font-size: 18px; color: #AC8CBD; }
.tech2-return { text-align: center; font-size: 11px; color: #9B733D; margin-top: 10px; }
.tech2-proof { border-left: 1px solid #DBD0E1; padding-left: 30px; display: flex; flex-direction: column; }
.tech2-proof > h2 { margin-bottom: 12px; }
.tech2-proof article { display: grid; grid-template-columns: 1fr; gap: 8px; border-top: 1px solid #DED5E2; padding-top: 14px; margin-top: 8px; flex: 1; }
.tech2-proof-value { font-family: 'Inter', sans-serif; font-weight: 800; font-size: 40px; line-height: 1; letter-spacing: -1px; color: var(--bauhinia); }
.tech2-proof-value span { font-size: 23px; }
.tech2-proof h3 { font-size: 16px; margin-bottom: 5px; }
.tech2-proof p { font-size: 12px; line-height: 1.5; color: #786680; }
.tech2-mini-bars { padding: 3px 0 10px; }
.tech2-mini-bars i { display: block; background: var(--bauhinia); height: 6px; }
.tech2-mini-bars i + i { background: #B8A5C2; margin-top: 5px; }
.tech2-development { display: flex; align-items: center; gap: 28px; padding: 15px 18px; background: #271B30; color: #E7DBED; flex-shrink: 0; }
.tech2-development strong { font-size: 14px; color: #D8B989; }
.tech2-development > span { font-size: 13px; }
.tech2-ip { display: grid; grid-template-columns: 1.25fr 1.1fr 0.8fr; gap: 20px; font-size: 11px; color: #75637E; margin-top: 16px; }
.tech2-ip strong { display: block; font-size: 11px; color: #6D3D85; margin-bottom: 5px; }


.tech3-world .tech2-runtime-head { margin-bottom: 14px; }
.tech3-entity-types { display: grid; grid-template-columns: repeat(6, minmax(0,1fr)); gap: 8px; margin-bottom: 20px; }
.tech3-entity-types > span { text-align: center; font-size: 12px; color: #E9D1AC; padding: 8px 4px; border: 1px solid #6F537E; background: #33203D; }
.tech3-world .tech2-memory { padding-top: 17px; }
.tech3-world .tech2-memory-title { font-size: 14px; }
.tech3-world .tech2-memory-items { font-size: 12px; }
.tech3-world .tech2-memory-note { margin-top: 12px; }
.tech3-story { display: flex; gap: 25px; align-items: center; background: #271B30; color: #E7DBED; padding: 14px 18px; flex-shrink: 0; }
.tech3-story > strong { width: 192px; flex-shrink: 0; font-size: 14px; color: #E0BE8E; }
.tech3-story small { display: block; font-size: 10px; margin-top: 5px; color: #A594AF; font-weight: 400; letter-spacing: 1px; }
.tech3-story > p { font-size: 14px; line-height: 1.7; color: #E1D5E8; }
.tech3-story p > b { color: #B08CC3; font-weight: 400; padding: 0 4px; }
.tech3-social .tech2-loop-heading { padding-top: 16px; }