/* ── Global ─────────────────────────────────────── */
    .reveal {
      font-family: 'Roboto', 'Segoe UI', sans-serif;
      font-weight: 300;
      font-size: 22px;
      color: #354046;
      line-height: 1.5;
    }
    .reveal h1, .reveal h2, .reveal h3 {
      font-family: 'Lato', sans-serif;
      text-transform: none;
      letter-spacing: normal;
      color: #356aaf;
    }
    /* ── Dark slides ─────────────────────────────────── */
    .reveal section[data-background-color="#000000"] {
      color: white;
    }
    .reveal section[data-background-color="#000000"] .slide-title {
      color: #7aadff;
      border-bottom-color: #7aadff;
    }
    .reveal section[data-background-color="#000000"] .slide-text,
    .reveal section[data-background-color="#000000"] .slide-list {
      color: white;
    }
    .reveal section[data-background-color="#000000"] .slide-footnote {
      color: #aaa;
    }
    .reveal section[data-background-color="#000000"] .slide-footnote a {
      color: #7aadff;
    }

    .reveal a {
      color: #5b82b5;
      text-decoration: underline;
    }
    .reveal a:hover {
      color: #356aaf;
    }
    .paper-citation-author {
      color: #000;
      font-weight: 700;
    }
    .paper-citation-arxiv,
    .paper-citation-arxiv:visited {
      color: #5b82b5 !important;
      text-decoration: underline !important;
      font-weight: 700;
    }
    .paper-citation-arxiv:hover {
      color: #356aaf !important;
    }

    /* ── Title slide ─────────────────────────────────── */
    .title-section {
      text-align: center;
      position: relative;
      box-sizing: border-box;
      padding-bottom: 1.6em;
    }
    .title-section {
      --title-overlay-bg: rgba(255, 255, 255, 0.65);
      --title-upper-shift: -0.55cm;
    }
    .talk-title {
      font-size: 1.8em;
      color: #234a7a;
      margin-bottom: 0.4em;
      transform: translateY(calc(3mm + var(--title-upper-shift)));
    }
    .title-name {
      font-size: 1.6em;
      font-family: 'Lato', sans-serif;
      color: #000000;
      font-weight: 400;
      margin: 0.2em 0 0.02em 0;
      transform: translateY(calc(3mm + var(--title-upper-shift)));
    }
    .title-meta {
      font-size: 0.85em;
      color: #000000;
      font-weight: 400;
      margin: 0.04em 0;
      transform: translateY(var(--title-upper-shift));
    }
    .title-section > .talk-title,
    .title-section > .title-name,
    .title-section > .title-meta {
      display: inline-block;
      background: var(--title-overlay-bg);
      border-radius: 7px;
      padding: 0.14em 0.42em;
      box-sizing: border-box;
    }
    .title-section > .title-meta + .title-meta {
      transform: translateY(calc(var(--title-upper-shift) - 2mm));
    }
    .title-work-with {
      display: flex;
      justify-content: center;
      align-items: flex-start;
      width: 100%;
      margin: 0.06em auto 0.1em auto;
      min-height: 7.35em;
      box-sizing: border-box;
      padding: 0 1em;
      position: relative;
      transform: translateY(calc(0.18em + var(--title-upper-shift)));
    }
    .title-work-with-label {
      position: absolute;
      top: calc(2.51em + 4mm);
      left: 1.1em;
      transform: translateY(-50%);
      margin: 0;
      white-space: nowrap;
      text-align: right;
      font-size: 0.62em;
      line-height: 1.08;
      color: #1f2f42;
      font-weight: 600;
      background: var(--title-overlay-bg);
      border-radius: 5px;
      padding: 0.12em 0.35em;
      box-sizing: border-box;
    }
    .title-portraits {
      display: flex;
      justify-content: center;
      align-items: flex-start;
      gap: 0.5em;
      flex-wrap: nowrap;
      width: fit-content;
      max-width: calc(100% - 7em);
      margin: 0 auto;
      transform: translateY(-2mm);
    }
    .title-portrait-card {
      display: flex;
      flex-direction: column;
      align-items: center;
      gap: 0;
      width: 8.9em;
    }
    .title-portrait {
      width: 5.02em;
      height: 5.02em;
      border-radius: 50%;
      object-fit: cover;
      object-position: center 20%;
      border: 2px solid rgba(255, 255, 255, 0.95);
      box-shadow: 0 4px 14px rgba(0, 0, 0, 0.18);
      background: rgba(255, 255, 255, 0.9);
    }
    .title-portrait-name {
      margin: 0;
      transform: translateY(-4.5mm);
      font-size: 0.62em;
      line-height: 1.08;
      color: #1f2f42;
      font-weight: 600;
      text-align: center;
      background: var(--title-overlay-bg);
      border-radius: 5px;
      padding: 0.18em 0.4em;
      box-sizing: border-box;
    }
    .title-logos {
      margin-top: calc(0.3em + 24px);
      transform: translateY(-0.95cm);
      display: flex;
      justify-content: center;
      align-items: center;
      gap: 8em;
      flex-wrap: wrap;
    }
    .title-logos .logo-img {
      max-height: 125px !important;
      object-fit: contain;
      background: var(--title-overlay-bg);
      border-radius: 6px;
      padding: 6px 10px;
    }
    .title-logos .logo-img:first-child {
      width: 324px;
    }
    .title-logos .logo-img:nth-child(2) {
      width: 414px;
    }

    /* ── Top-align all slide content ─────────────────── */
    .reveal .slides section {
      text-align: left;
      padding-top: 0.5em;
    }
    .reveal .slides > section {
      top: 0 !important;
    }

    /* ── Title slide: vertically centered, slightly above middle ── */
    .reveal .slides section.title-section {
      text-align: center;
      display: flex !important;
      flex-direction: column;
      justify-content: center;
      align-items: center;
      height: 100%;
      width: 100%;
      box-sizing: border-box;
      padding-top: 0;
      padding-bottom: 0;
      margin: 0;
      background: transparent;
      transform: translateY(5%);
    }
    .reveal .backgrounds .slide-background:first-child::after {
      content: '';
      position: absolute;
      inset: 0;
      background: rgba(255, 255, 255, 0.35);
      pointer-events: none;
    }

    /* ── Slide titles ────────────────────────────────── */
    .slide-title {
      font-size: 2.2em !important;
      font-family: 'Lato', sans-serif;
      color: #356aaf;
      margin: 0 0 0.4em 0;
      border-bottom: 2px solid #356aaf;
      padding-bottom: 0.2em;
      text-align: center;
    }
    .slide-title code {
      font-family: 'SFMono-Regular', 'Menlo', 'Consolas', monospace;
      font-size: 0.92em;
      background: rgba(53, 106, 175, 0.08);
      border-radius: 0.18em;
      padding: 0.04em 0.18em;
    }
    .slide-title-line {
      display: block;
    }
    .reveal .slides section.slide-lcdm-title .content-row {
      margin-top: 1cm;
    }
    .reveal .slides section.slide-lcdm-pie .content-row {
      display: grid;
      grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
      gap: 0;
      align-items: center;
      width: 100%;
      min-height: 72%;
      margin-top: 0.35em;
    }
    .reveal .slides section.slide-lcdm-pie .img-col {
      display: flex;
      justify-content: center;
      align-items: center;
      padding-left: 0;
      min-width: 0;
      grid-column: 1;
      grid-row: 1;
      margin-top: 0.5cm;
    }
    .reveal .slides section.slide-lcdm-pie .img-col img {
      max-height: 486px;
      max-width: 79.2%;
      object-fit: contain;
      margin: 0;
    }
    .reveal .slides section.slide-lcdm-pie .text-col {
      color: #eeeeee;
      display: flex;
      flex-direction: column;
      justify-content: center;
      font-size: 1.15em;
      padding: 0 0.3em;
      margin: 1cm 0 0 0;
      min-width: 0;
      grid-column: 2;
      grid-row: 1;
    }
    .reveal .slides section.slide-lcdm-pie .text-col .slide-list li {
      margin-bottom: 0.5em;
    }
    .reveal .slides section.slide-lcdm-pie .uchuu-page2-images {
      position: absolute;
      top: calc(22% + 1cm);
      left: 0;
      right: 0;
      width: 100%;
      height: 72%;
      margin-top: 0;
    }
    .reveal .slides section.slide-lcdm-pie .slide-title {
      font-size: 1.95em !important;
      margin-bottom: 0.22em;
      padding-bottom: 0.14em;
    }
    .uchuu-page2-item {
      position: relative;
      height: 100%;
    }
    .uchuu-page2-item .uchuu-page2-img {
      height: 100%;
    }
    .uchuu-page2-caption {
      position: absolute;
      bottom: -1.8em;
      left: 0;
      right: 0;
      color: #cccccc;
      font-size: 0.7em;
      text-align: center;
    }

    /* ── Text ────────────────────────────────────────── */
    .slide-text {
      font-size: 0.85em;
      text-align: left;
      margin: 0.3em 0;
    }
    .slide-footnote {
      position: absolute;
      bottom: 0.5em;
      left: 1em;
      font-size: 0.55em;
      color: #000;
      margin: 0;
    }
    .reveal .slides section:has(.slide-hero-question) {
      display: flex;
      flex-direction: column;
      height: 100%;
      box-sizing: border-box;
    }
    .reveal .slides section:has(.slide-hero-question) .slide-hero-question {
      flex: 0 0 auto;
      display: block;
      font-size: 1.2em;
      white-space: normal;
      text-align: center;
      line-height: 2;
      max-width: 88%;
      margin: 0 auto 0.35em auto;
    }
    .reveal .slides section:has(.slide-hero-question) .slide-hero-question strong {
      margin: 0 0.2em;
    }
    .reveal .slides section:has(.slide-hero-question) .content-row.fragment:not(.visible) {
      display: none;
    }
    .img-with-side-credit {
      position: relative;
      display: inline-block;
    }
    .img-side-credit {
      position: absolute;
      left: calc(100% + 0.8em);
      top: 0;
      margin: 0;
      font-size: 0.55em;
      line-height: 1.15;
      white-space: nowrap;
      text-align: left;
    }
    .img-with-caption {
      display: inline-block;
    }
    .img-caption {
      font-size: 0.42em;
      color: #777;
      margin: 0.04em 0 0 0;
      text-align: left;
    }
    .slide-footer {
      text-align: center;
      font-size: 0.62em;
      color: #444;
      margin: 0;
      padding-bottom: 0.3em;
    }
    .slide-footnote-top-right {
      position: absolute;
      top: 3em;
      right: 1em;
      font-size: 0.55em;
      color: #000;
      margin: 0;
      text-align: right;
    }
    .slide-footnote strong {
      color: #000;
    }
    .slide-list {
      font-size: 0.82em;
      text-align: left;
      margin: 0.3em 0 0.3em 1.2em;
      line-height: 1.5;
    }
    .text-only {
      max-width: 85%;
      margin: 0 auto;
    }
    .slide-center-content {
      display: flex !important;
      flex-direction: column;
      justify-content: center;
      align-items: center;
    }
    .slide-center-content .text-only {
      display: flex;
      flex-direction: column;
      justify-content: center;
      align-items: center;
      flex: 1;
      text-align: center;
    }
    .slide-center-content .text-only .slide-text {
      font-size: 1.6em;
      font-style: italic;
    }

    /* ── Two-column layout ───────────────────────────── */
    .content-row {
      display: flex;
      gap: 1.5em;
      align-items: flex-start;
      width: 100%;
    }
    .text-col {
      flex: 1 1 38%;
      text-align: left;
    }
    .img-col {
      flex: 1 1 58%;
      display: flex;
      flex-direction: column;
      align-items: center;
      gap: 0.4em;
    }

    /* ── Image layouts ───────────────────────────────── */
    .slide-img {
      max-height: 374.4px;
      max-width: 100%;
      object-fit: contain;
    }
    .img-center {
      display: flex;
      justify-content: center;
      align-items: center;
      width: 100%;
    }
    .reveal .slides > section > .img-center > .slide-img.img-large {
      max-height: 432px;
      max-width: 90%;
    }
    .img-large {
      max-height: 432px;
      max-width: 90%;
    }
    .reveal .slides section.pdf-gnpe > .img-center > .slide-img.img-large {
      max-height: 600px;
      max-width: 100%;
    }
    .reveal .slides section.pdf-gnpe .slide-footnote-top-right {
      top: calc(3em + 8mm);
      font-size: 0.825em;
    }
    .reveal .slides section.pdf-gnpe .slide-footnote-top-right a {
      color: #2266cc;
      font-weight: 700;
    }
    .reveal .slides section.pdf-forward-model-split .content-row {
      align-items: center;
      gap: 0.9em;
      margin-top: 0.15em;
    }
    .reveal .slides section.pdf-forward-model-split .text-col {
      flex: 0 0 34%;
      max-width: 34%;
      font-size: 1.02em;
      line-height: 1.34;
      display: flex;
      flex-direction: column;
      justify-content: center;
      transform: translate(5mm, -5mm);
    }
    .reveal .slides section.pdf-forward-model-split .text-col .slide-list {
      font-size: 1.05em;
      margin-top: 0.15em;
    }
    .reveal .slides section.pdf-forward-model-split .text-col li {
      margin-bottom: 0.58em;
    }
    .reveal .slides section.pdf-forward-model-split .text-col li mjx-container {
      font-size: 0.86em !important;
    }
    .reveal .slides section.pdf-forward-model-split .img-col {
      flex: 0 0 62%;
      max-width: 62%;
      align-items: center;
      gap: 0.55em;
    }
    .reveal .slides section.pdf-forward-model-split .img-grid-2 {
      grid-template-columns: 1fr;
      gap: 0.55em;
      align-items: start;
      justify-items: center;
      width: 90%;
      max-width: 90%;
      margin-left: auto;
      margin-right: auto;
      transform: translateX(3cm);
    }
    .reveal .slides section.pdf-forward-model-split .img-grid-2 > .img-with-caption:first-child {
      display: flex;
      flex-direction: column-reverse;
      align-items: center;
      width: 100%;
      gap: 0.18em;
    }
    .reveal .slides section.pdf-forward-model-split .img-grid-2 > .img-with-caption:first-child .img-caption {
      margin: 0 0 0.12em 0;
      width: 88%;
      text-align: right;
      font-size: 0.56em;
      font-style: normal;
      transform: translateY(-5mm);
    }
    .reveal .slides section.pdf-forward-model-split .img-grid-2 > .img-with-caption:first-child .slide-img,
    .reveal .slides section.pdf-forward-model-split .img-grid-2 > .slide-img:first-child {
      max-height: 96px;
      width: 88%;
      margin-left: auto;
      margin-right: auto;
      transform: translate(1cm, -1cm);
    }
    .reveal .slides section.pdf-forward-model-split .img-grid-2 .slide-img:last-child {
      max-height: 475px;
      transform: translate(1cm, calc(-1cm - 5mm - 4mm));
    }
    .reveal .slides section.slide-adaptive-fli .content-row {
      align-items: center;
      gap: 1.2em;
      margin-top: 0.35em;
      transform: translateY(1.25cm);
    }
    .reveal .slides section.slide-adaptive-fli .text-col {
      flex: 0 0 56%;
      max-width: 56%;
    }
    .reveal .slides section.slide-adaptive-fli .img-col {
      flex: 0 0 40%;
      max-width: 40%;
      justify-content: center;
    }
    .reveal .slides section.slide-adaptive-fli .img-col .slide-img {
      max-height: 520px;
      max-width: 100%;
      width: auto;
    }
    .reveal .slides section.slide-adaptive-fli .center-overlay-image {
      position: absolute;
      left: 50%;
      top: calc(56% + 2cm);
      transform: translate(-50%, -50%) scale(1.18);
      z-index: 6;
      display: flex;
      flex-direction: column;
      align-items: center;
      justify-content: center;
      pointer-events: none;
    }
    .reveal .slides section.slide-adaptive-fli .center-overlay-image .slide-img {
      max-height: 460px;
      max-width: 58vw;
      width: auto;
      transform: translateY(0mm);
    }
    .reveal .slides section.slide-adaptive-fli .center-overlay-text {
      margin: calc(-2cm + 10mm) 0 0.5em 0;
      max-width: 32em;
      font-size: 1.08em;
      line-height: 1.35;
      text-align: center;
      color: #222;
    }
    .reveal .slides section.slide-adaptive-fli .center-overlay-text code {
      font-size: 0.95em;
    }
    .reveal .slides section.slide-adaptive-fli .center-overlay-caption {
      margin: calc(0.35em + 3mm) 0 0 0;
      font-size: 0.78em;
      font-style: italic;
      color: #444;
      text-align: center;
      transform: translateY(-3mm);
    }
    .reveal .slides section.slide-adaptive-fli .slide-list {
      font-size: 1.08em;
      line-height: 1.42;
      margin-top: 0.45em;
    }
    .reveal .slides section.slide-adaptive-fli .slide-list li {
      margin-bottom: 0.95em;
    }
    .img-grid-2 {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 0.5em;
      width: 100%;
      align-items: center;
    }
    .img-grid {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 0.4em;
      width: 100%;
      align-items: center;
    }
    .img-grid-many {
      display: flex;
      flex-wrap: wrap;
      gap: 0.4em;
      justify-content: center;
    }
    .img-grid-many .slide-img {
      max-height: 216px;
    }
    .img-grid-2 .slide-img,
    .img-grid .slide-img {
      max-height: 273.6px;
      width: 100%;
      object-fit: contain;
    }
    .img-grid-2-full .slide-img {
      max-height: 468px;
    }
    .reveal .slides section.slide-lss .content-row {
      flex-direction: column;
      align-items: stretch;
    }
    .reveal .slides section.slide-lss .text-col {
      width: 80%;
      margin-left: auto;
      margin-right: auto;
      margin-bottom: 0.5em;
      font-size: 1.15em;
    }
    .reveal .slides section.slide-lss .slide-list li {
      margin-bottom: 0.6em;
    }
    .reveal .slides section.slide-lss .img-col {
      width: 100%;
      display: flex;
      justify-content: center;
    }
    .reveal .slides section.slide-lss .img-grid-2 {
      margin-top: -1cm;
      width: 100%;
    }
    .reveal .slides section.slide-lss .img-grid-2 .slide-img {
      max-height: 419.76px;
    }
    .reveal .slides section.slide-lss .img-grid-2 .slide-img:first-child {
      max-height: 377.78px;
    }
    .reveal .slides section.slide-lss .slide-footnote {
      bottom: calc(0.5em - 0.5cm);
    }
    .reveal .slides section.slide-lcdm-questions .slide-list li {
      margin-bottom: 0.75em;
    }
    .reveal .slides section.slide-lcdm-questions .text-only {
      font-size: 1.25em;
    }
    .reveal .slides section.slide-lcdm-questions .slide-footnote {
      position: static;
      margin-top: 1cm;
    }
    .reveal .slides section.slide-centered-title {
      display: flex !important;
      flex-direction: column;
      justify-content: center;
      align-items: center;
      height: 100% !important;
      min-height: 100%;
      box-sizing: border-box;
      padding-top: 0;
      padding-bottom: 0;
    }
    .reveal .slides section.slide-centered-title .slide-title {
      text-align: center;
      display: flex;
      align-items: center;
      justify-content: center;
      flex: 1;
      width: 100%;
      margin: 0;
      padding-bottom: 0;
      border-bottom: 0;
    }
    .reveal .slides section.slide-centered-title .content-row {
      display: none;
    }

    .reveal .slides section.slide-uat .content-row {
      align-items: center;
      margin-left: 0.5cm;
      margin-top: 114px;
    }
    .reveal .slides section.slide-uat .img-col {
      order: -1;
      margin-left: -1cm;
      margin-top: -0.5cm;
    }
    .reveal .slides section.slide-uat .img-col .slide-img {
      max-width: 100%;
    }
    .reveal .slides section.slide-uat .img-col .img-caption {
      font-size: 0.45em;
      max-width: 75%;
    }
    .reveal .slides section.slide-uat .text-col {
      font-size: 1.3em;
      flex: 0 0 50%;
      margin-left: 76px;
    }
    .reveal .slides section.slide-uat .slide-list li {
      margin-bottom: 0.6em;
    }
    .reveal .slides section.slide-nn .content-row {
      align-items: center;
      margin-left: 0.5cm;
      margin-top: 114px;
      padding-left: 4mm;
      padding-right: 4mm;
    }
    .reveal .slides section.slide-nn .img-col {
      order: -1;
      margin-left: -1cm;
      margin-top: -0.5cm;
    }
    .reveal .slides section.slide-nn .img-col .slide-img {
      max-width: 110%;
    }
    .reveal .slides section.slide-nn .img-col .img-caption {
      font-size: 0.45em;
      max-width: 75%;
    }
    .reveal .slides section.slide-nn .text-col {
      font-size: 1.3em;
      flex: 0 0 50%;
      margin-left: 76px;
      margin-right: 4mm;
    }
    .reveal .slides section.slide-nn .slide-list li {
      margin-bottom: 0.6em;
    }
    .reveal .slides section.slide-autodiff .content-row {
      align-items: center;
      margin-left: 0.5cm;
      margin-top: 58px;
    }
    .reveal .slides section.slide-autodiff .img-col {
      order: -1;
      margin-left: -1cm;
      margin-top: -1.5cm;
    }
    .reveal .slides section.slide-autodiff .img-col .slide-img {
      max-width: 75%;
    }
    .reveal .slides section.slide-autodiff .img-col .img-caption {
      font-size: 0.45em;
      max-width: 75%;
    }
    .reveal .slides section.slide-autodiff .text-col {
      font-size: 1.15em;
      flex: 0 0 57.75%;
      margin-left: 57px;
    }
    .reveal .slides section.slide-autodiff .slide-list li {
      margin-bottom: 0.85em;
    }
    .reveal .slides section.slide-autodiff .slide-footnote-top-right {
      top: calc(3em + 38px);
    }
    .reveal .slides section.slide-sbi .hero-immediate-reviews {
      position: absolute;
      bottom: 1.5em;
      left: 0;
      font-size: 0.85em;
    }
    .reveal .slides section.slide-sbi .content-row {
      display: flex;
      justify-content: center;
    }
    .reveal .slides section.slide-sbi .img-col {
      display: flex;
      flex-direction: column;
      align-items: center;
      margin-top: 15mm;
    }
    .reveal .slides section.slide-sbi .img-with-side-links {
      position: relative;
      display: inline-block;
    }
    .reveal .slides section.slide-sbi .slide-side-links {
      position: absolute;
      right: calc(100% + 0.8em);
      top: 0;
      display: flex;
      flex-direction: column;
      align-items: flex-start;
      gap: 0.22em;
      font-size: 0.62em;
      line-height: 1.15;
      white-space: nowrap;
      text-align: left;
    }
    .reveal .slides section.slide-sbi .slide-side-link {
      margin: 0;
    }
    .reveal .slides section.slide-sbi .hero-eq-bullets {
      position: relative;
      width: 100%;
      display: flex;
      align-items: center;
      margin-top: 1.5cm;
    }
    .reveal .slides section.slide-sbi .hero-eq-bullets .eq-block {
      position: absolute;
      left: calc(50% - 1.5cm);
      transform: translateX(-50%);
      font-size: 1.1em;
      white-space: nowrap;
    }
    .reveal .slides section.slide-sbi .hero-eq-bullets ul.slide-list {
      font-size: 1.15em;
      margin-left: auto;
      margin-right: 1.5cm;
    }

    .reveal .slides section.slide-nn-arch .content-row {
      align-items: center;
      margin-left: -2cm;
    }
    .reveal .slides section.slide-nn-arch .img-col {
      order: -1;
      margin-left: -1cm;
      margin-top: -0.5cm;
    }
    .reveal .slides section.slide-nn-arch .img-col .slide-img {
      max-width: 50%;
    }
    .reveal .slides section.slide-nn-arch .text-col {
      font-size: 1.3em;
    }
    .reveal .slides section.slide-nn-arch .slide-list li {
      margin-bottom: 0.6em;
    }
    .reveal .slides section.slide-ai4sci {
      display: flex !important;
      flex-direction: column;
      justify-content: center;
    }
    .reveal .slides section.slide-ai4sci .content-row {
      align-items: center;
      flex: 1;
      display: flex;
      margin-top: 2.5cm;
    }
    .reveal .slides section.slide-ai4sci .img-col .slide-img {
      max-width: 60%;
    }
    .reveal .slides section.slide-ai4sci .slide-footnote {
      left: 1em;
      right: auto;
      bottom: calc(0.5em - 2cm);
      text-align: left;
    }
    .reveal .slides section.slide-personal .content-row {
      margin-top: 4cm;
    }
    .reveal .slides section.slide-personal .text-col {
      flex: 0 0 65%;
    }
    .reveal .slides section.slide-personal .img-col {
      margin-left: 1cm;
    }
    .reveal .slides section.slide-personal .img-col .slide-img {
      max-width: 80%;
    }

    /* image caption */
    .reveal .slides .img-caption-wrap {
      display: flex;
      flex-direction: column;
      align-items: center;
    }
    .reveal .slides .img-caption {
      font-size: 0.55em;
      color: #aaaaaa;
      font-style: italic;
      margin-top: 0.4em;
      text-align: center;
    }

    /* ── Auxiliary variable trick ────────────────────────── */
    .reveal .slides section.slide-aux-trick .img-col {
      margin-top: 1cm;
    }

    /* ── Joint analyses of CMB & LSS ─────────────────────── */
    .reveal .slides section.slide-joint-cmb-lss .img-col {
      margin-top: 1cm;
    }

    /* ── Forecast posteriors ──────────────────────────────── */
    .reveal .slides section.slide-forecast-posteriors .img-col {
      margin-top: 1cm;
    }

    /* ── QR code overlay ─────────────────────────────────── */
    .slide-qr-wrapper {
      position: absolute;
      bottom: calc(0.25em + 5mm);
      left: calc(0.35em - 5mm);
      display: flex;
      flex-direction: column;
      align-items: center;
    }
    .slide-qr-label {
      font-size: 0.55em;
      font-weight: 600;
      color: #354046;
      margin-bottom: -5mm;
      background: rgba(255, 255, 255, 0.55);
      border-radius: 5px;
      padding: 0.12em 0.35em;
      box-sizing: border-box;
    }
    .slide-qr-code {
      width: 4.8em;
      height: 4.8em;
    }
    /* ── Results slide ──────────────────────────────────── */
    .reveal .slides section[data-slide-number="36"] .slide-img {
      max-width: 120%;
    }

    /* ── Fields from point cloud data ────────────────────── */
    .reveal .slides section.slide-point-cloud {
      display: flex;
      flex-direction: column;
      box-sizing: border-box;
      height: 100%;
      position: relative;
    }
    .reveal .slides section.slide-point-cloud .slide-title {
      flex: none;
    }
    .reveal .slides section.slide-point-cloud .point-cloud-stage {
      position: relative;
      width: 100%;
      flex: 1;
      min-height: 24em;
      margin-top: 0.95em;
      display: flex;
      align-items: center;
      justify-content: center;
    }
    .reveal .slides section.slide-point-cloud .point-cloud-layer {
      position: absolute;
      inset: 0;
      display: flex;
      align-items: center;
      justify-content: center;
    }
    .reveal .slides section.slide-point-cloud .slide-footnote {
      position: absolute;
      top: calc(3.1em + 38px);
      right: 0.5em;
      left: auto;
      bottom: auto;
      text-align: right;
      font-size: 0.65em;
    }
    .reveal .slides section.slide-point-cloud .top-right-text {
      position: absolute;
      top: calc(3.1em + 38px);
      left: 0.5em;
      right: auto;
      bottom: auto;
      text-align: left;
      font-size: 1.55em;
      font-weight: bold;
      color: #999;
    }
    .reveal .slides section.slide-point-cloud .slide-img {
      width: auto;
      object-fit: contain;
    }
    .reveal .slides section.slide-point-cloud .point-cloud-still .slide-img {
      max-width: 70%;
      max-height: 604.8px;
      transform: translateY(1cm) scale(1.3);
      transform-origin: center center;
    }
    .reveal .slides section.slide-point-cloud .point-cloud-gif {
      transform: translateY(1cm);
    }
    .reveal .slides section.slide-point-cloud .point-cloud-gif .slide-img {
      max-width: 74.19%;
      max-height: 645.02px;
    }
    .reveal .slides section.slide-joint-inference .content-row {
      display: grid;
      grid-template-columns: 1.36fr 0.64fr;
      gap: 1.25em;
      align-items: center;
      margin-top: 0.35cm;
    }
    .reveal .slides section.slide-joint-inference .img-col {
      order: -1;
      display: flex;
      align-items: center;
      justify-content: center;
      width: 100%;
    }
    .reveal .slides section.slide-joint-inference .img-col .slide-img {
      max-height: 632.02px;
      max-width: 98%;
      transform: translateY(-1cm);
    }
    .reveal .slides section.slide-joint-inference .top-right-text {
      position: absolute;
      top: calc(3.1em + 58px + 2cm);
      left: 31%;
      transform: translateX(-50%);
      margin: 0;
      text-align: center;
      font-size: 1.28em;
      font-weight: 700;
      color: #999;
      background: rgba(255, 255, 255, 0.58);
      border-radius: 8px;
      padding: 0.12em 0.5em;
      z-index: 3;
    }
    .reveal .slides section.slide-joint-inference .text-col {
      width: 100%;
      font-size: 1.18em;
      line-height: 1.4;
      display: flex;
      flex-direction: column;
      align-items: flex-start;
      justify-content: center;
      gap: 1.2em;
      transform: translate(-1cm, -1cm);
    }
    .reveal .slides section.slide-joint-inference .text-col .slide-text {
      margin: 0 0 0.15em 0;
    }
    .reveal .slides section.slide-joint-inference .slide-list {
      margin: 0;
      padding-left: 1.05em;
      transform: translateY(5mm);
    }
    .reveal .slides section.slide-joint-inference .slide-list li {
      margin-bottom: 0.95em;
    }
    .reveal .slides section.slide-falcon .content-row {
      align-items: center;
      gap: 1.1em;
      min-height: 60%;
    }
    .reveal .slides section.slide-falcon .text-col {
      flex: 0 0 48%;
      max-width: 48%;
      display: flex;
      align-items: center;
      justify-content: flex-start;
    }
    .reveal .slides section.slide-falcon .slide-list {
      font-size: 1.15em;
      line-height: 1.36;
      margin: 0;
      padding-left: 1.1em;
    }
    .reveal .slides section.slide-falcon .slide-list li {
      margin-bottom: 0.75em;
    }
    .reveal .slides section.slide-falcon .img-col {
      flex: 0 0 48%;
      max-width: 48%;
      justify-content: center;
    }
    .reveal .slides section.slide-falcon .img-col .slide-img {
      max-height: 550px;
      max-width: 100%;
      width: auto;
    }
    .reveal .slides section.slide-falcon .slide-footnote {
      font-size: 0.7em;
      line-height: 1.35;
    }
    .reveal .slides section.slide-falcon .slide-footnote a:first-of-type,
    .reveal .slides section.slide-falcon .slide-footnote a:first-of-type:visited {
      color: #356aaf;
    }
    .reveal .slides section.slide-falcon .slide-footnote a:first-of-type strong {
      color: #356aaf;
    }
    /* ── Open questions of ΛCDM ──────────────────────────── */
    .reveal .slides section.slide-lcdm-questions .img-col {
      order: -1;
    }
    .reveal .slides section.slide-lcdm-questions .img-col .slide-img {
      max-width: 88%;
      margin-top: 0.5cm;
    }
    .reveal .slides section.slide-lcdm-questions .img-caption-wrap {
      align-items: flex-start;
    }
    .reveal .slides section.slide-lcdm-questions .img-caption {
      font-style: normal;
      font-weight: bold;
      color: #000000;
    }
    .reveal .slides section.slide-lcdm-questions .img-caption a {
      color: #2266cc;
    }
    .reveal .slides section.slide-lcdm-questions .text-col {
      font-size: 1.2em;
      margin-left: -2cm;
      flex: 0 0 52%;
    }
    .reveal .slides section.slide-lcdm-questions .content-row {
      align-items: flex-start;
      margin-top: 3cm;
    }
    .reveal .slides section.slide-lcdm-questions .img-col {
      display: flex;
      align-items: center;
      justify-content: center;
    }
    .reveal .slides section.slide-lcdm-questions .text-col {
      display: flex;
      flex-direction: column;
      justify-content: center;
    }

    .reveal .slides section.slide-lbi .content-row {
      flex-direction: column;
      align-items: center;
    }
    .reveal .slides section.slide-lbi .img-col {
      order: -1;
      width: 100%;
      display: flex;
      justify-content: center;
      margin-bottom: 0.5em;
    }
    .reveal .slides section.slide-lbi .img-col .slide-img {
      max-height: 237.6px !important;
    }
    .reveal .slides section.slide-generative-modelling .img-col .slide-img {
      max-height: 330px !important;
    }
    .reveal .slides section.slide-lbi .text-col {
      width: 75%;
      margin-left: auto;
      margin-right: auto;
      font-size: 1.21em;
      margin-top: -0.5cm;
      line-height: 1.44;
    }
    .reveal .slides section.slide-lbi .text-col li {
      margin-bottom: 0.90em;
    }
    .reveal .slides section.slide-lbi .slide-footnote-top-right {
      top: calc(3em + 38px + 0.4cm);
    }
    .reveal .slides section.slide-generative .content-row {
      margin-top: 0.4cm;
    }
    .reveal .slides section.slide-generative .img-col {
      margin-bottom: 0.08em;
      margin-top: -1cm;
    }
    .reveal .slides section.slide-generative .img-col .slide-img {
      max-height: 400px;
    }
    .reveal .slides section.slide-generative-modelling .img-caption-wrap {
      display: flex;
      flex-direction: column-reverse;
      align-items: flex-start;
      width: fit-content;
    }
    .reveal .slides section.slide-generative-modelling .img-caption {
      margin: 0 0 0.35em 0;
      text-align: left;
      transform: translate(-6.2cm, 6mm);
    }
    .reveal .slides section.slide-generative .text-col {
      width: 88%;
      font-size: 1.28em;
      line-height: 1.25;
      margin-top: -0.45cm;
    }
    .reveal .slides section.slide-generative .text-col .slide-list {
      margin: 0.08em 0 0.12em 1.05em;
      line-height: 1.34;
    }
    .reveal .slides section.slide-generative .text-col li {
      margin-bottom: 0.85em;
    }
    .reveal .slides section.slide-generative .text-col li mjx-container[display="true"] {
      margin: 0.04em 0 !important;
    }

    .reveal .slides section.slide-sampling .sampling-algorithms-stage {
      position: relative;
      flex: 1;
      min-height: 0;
    }
    .reveal .slides section.slide-sampling .sampling-algorithms-page1,
    .reveal .slides section.slide-sampling .sampling-algorithms-page2 {
      position: absolute;
      inset: 0;
    }
    .reveal .slides section.slide-sampling .sampling-algorithms-page1 {
      display: flex;
      align-items: center;
      justify-content: center;
      transform: translateY(-1cm);
    }
    .reveal .slides section.slide-sampling .sampling-algorithms-page1 .content-row {
      width: 100%;
      height: 100%;
      flex-direction: column;
      align-items: center;
      justify-content: center;
    }
    .reveal .slides section.slide-sampling .sampling-algorithms-page1 .img-col {
      order: -1;
      width: 100%;
      display: flex;
      justify-content: center;
      margin-bottom: 0.55em;
      margin-top: -0.7cm;
    }
    .reveal .slides section.slide-sampling .sampling-algorithms-page1 .img-col .slide-img {
      max-height: 198.72px;
      width: auto;
    }
    .reveal .slides section.slide-sampling .sampling-algorithms-page1 .text-col {
      width: 78%;
      margin-left: auto;
      margin-right: auto;
      font-size: 1.14em;
      line-height: 1.42;
      margin-top: -1.2cm;
    }
    .reveal .slides section.slide-sampling .sampling-algorithms-page1 .text-col li {
      margin-bottom: 0.58em;
    }
    .reveal .slides section.slide-sampling .sampling-algorithms-page2 {
      display: flex;
      flex-direction: column;
      min-height: 0;
    }
    .reveal .slides section.slide-sampling .sampling-algorithms-page2 .iframe-body {
      flex: 1;
      min-height: 0;
    }
    .reveal .slides section.slide-sampling .sampling-iframe-link {
      font-size: 0.5em;
      margin: 0.3em 0 0;
      text-align: center;
      color: #555;
    }

    /* ── Equations ───────────────────────────────────── */
    .eq-block {
      font-size: 0.9em;
      margin: 0.5em 0;
      text-align: center;
    }
    .eq-block.eq-annotated {
      padding-top: 0.35em;
      padding-bottom: 0.45em;
    }
    .eq-block.eq-annotated mjx-container[display="true"] {
      overflow: visible !important;
    }
    .eq-block.eq-large {
      font-size: 1.8em;
    }
    .eq-only {
      display: flex;
      flex-direction: column;
      gap: 0.6em;
      justify-content: center;
      align-items: center;
      height: 468px;
    }
    .eq-img {
      max-width: 90%;
      max-height: 86.4px;
      object-fit: contain;
    }

    /* ── Iframe layout ───────────────────────────────── */
    .iframe-header {
      display: flex;
      justify-content: space-between;
      align-items: center;
      font-size: 1em;
      margin-bottom: 0.3em;
      color: #354046;
    }
    .iframe-header a {
      color: #5b82b5;
      font-size: 0.9em;
    }
    .iframe-header.iframe-header-centered {
      justify-content: center;
    }
    .iframe-slide {
      display: flex;
      flex-direction: column;
      gap: 0.35em;
      flex: 1;
      min-height: 0;
    }
    .iframe-text-frags-slide {
      display: flex;
      flex-direction: column;
      justify-content: center;
      flex: 1;
      min-height: 0;
      position: relative;
    }
    .iframe-text-frags-slide.iframe-frags-split {
      flex-direction: row;
      align-items: stretch;
      gap: 1.5em;
      justify-content: flex-start;
    }
    .frags-split-left {
      flex: 0 0 38%;
      display: flex;
      align-items: center;
      justify-content: center;
      order: 2;
    }
    .frags-split-left-inner {
      display: inline-flex;
      flex-direction: column;
      align-items: flex-start;
      gap: 0.3em;
    }
    .frags-split-left .slide-img {
      max-height: 594px;
      width: auto;
      margin-top: 0;
    }
    .frags-split-right {
      flex: 1;
      display: flex;
      flex-direction: column;
      order: 1;
      justify-content: flex-start;
      margin-top: -16px;
    }
    .frags-split-right-img {
      display: flex;
      justify-content: center;
      margin-bottom: 0.4em;
    }
    .frags-split-right-img .slide-img {
      max-height: 260px;
      width: auto;
    }
    .reveal .slides section.slide-inference .frags-split-right {
      position: relative;
    }
    .reveal .slides section.slide-inference .frags-split-right-caption {
      position: absolute;
      top: 0;
      left: 0;
      font-size: 0.55em;
      color: #aaaaaa;
      font-style: italic;
      text-align: left;
      margin: 0;
      white-space: nowrap;
    }
    .reveal .slides section.slide-inference .frags-split-right .slide-text {
      align-self: center;
      width: fit-content;
      max-width: 100%;
      text-align: center;
    }
    .reveal .slides section.slide-inference .iframe-overlay iframe {
      pointer-events: auto;
    }
    .frags-split-left-footnote {
      font-size: 0.5em;
      font-weight: bold;
      color: #555;
      text-align: center;
      width: 100%;
      margin: 0;
    }
    .frags-split-left-footnote a {
      color: #4a90d9;
    }
    .iframe-text-frags-slide .iframe-frags-top-img {
      flex: none;
      display: flex;
      justify-content: center;
      margin-bottom: 0.4em;
      margin-top: -19px;
    }
    .iframe-text-frags-slide .iframe-frags-top-img .slide-img {
      max-height: 300px;
      width: auto;
    }
    .iframe-text-frags-slide .iframe-frags-text {
      display: flex;
      flex-direction: column;
      justify-content: center;
      flex: 1;
      min-height: 0;
      margin-top: 19px;
    }
    .iframe-text-frags-slide .iframe-overlay {
      position: absolute;
      inset: 0;
    }
    .iframe-text-frags-slide .iframe-overlay .iframe-body {
      height: 100%;
    }
    .iframe-top-cover {
      position: absolute;
      top: 0;
      left: 0;
      right: 0;
      background: white;
      z-index: 10;
      display: flex;
      align-items: center;
      justify-content: center;
      padding: 0 1em;
    }
    .iframe-top-cover-text {
      color: black;
      font-size: 1em;
      text-align: center;
      margin: 0;
      line-height: 2.2;
      transform: translateY(-0.5cm);
    }
    .reveal .slides section.iframe-section {
      display: flex !important;
      flex-direction: column;
      box-sizing: border-box;
      height: 100%;
    }
    .reveal .slides section.iframe-section .slide-title {
      flex: none;
    }
    .iframe-slide .iframe-header {
      flex: none;
    }
    .iframe-body {
      flex: 1;
      min-height: 0;
      overflow: hidden;
    }
    .iframe-body iframe {
      width: 100%;
      height: 100%;
      border: none;
      border-radius: 4px;
    }

    /* ── Caption row (left text + right reference on one line) ── */
    .caption-row {
      display: flex;
      justify-content: space-between;
      align-items: baseline;
      font-size: 0.72em;
      color: #555;
      margin: 0.3em 0;
    }
    .caption-row span:last-child {
      text-align: right;
      flex-shrink: 0;
      margin-left: 1em;
      color: #5b82b5;
    }

    /* ── Video stacked layout (text top 60%, video bottom 40%) ── */
    .video-stack {
      display: flex;
      flex-direction: column;
      gap: 0.5em;
    }
    .video-text-top {
      flex: none;
    }
    .video-bottom {
      display: flex;
      justify-content: center;
    }
    .video-bottom video {
      max-height: 273.6px;
      max-width: 100%;
    }
    .reveal .slides section.slide-img-video-stack .img-video-stack {
      display: flex;
      flex-direction: column;
      align-items: center;
      gap: 0.5em;
      flex: 1;
      min-height: 0;
      margin-top: -1cm;
    }
    .reveal .slides section.slide-img-video-stack .img-video-stack-image-wrap {
      position: relative;
      display: inline-block;
    }
    .reveal .slides section.slide-img-video-stack .img-video-stack .slide-img {
      max-height: 187.2px;
      max-width: 100%;
      object-fit: contain;
      transform: translateY(8mm);
    }
    .reveal .slides section.slide-img-video-stack .img-video-stack-image-credit {
      position: absolute;
      top: 0;
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      font-size: 0.55em;
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      font-style: italic;
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      width: 67.2%;
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      max-height: 147.17px;
      height: auto;
      transform: translateY(10mm);
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    /* ── Precision cosmology slide ─────────────────── */
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      display: flex;
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      height: 100%;
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      font-size: 0.66em;
      text-align: center;
      margin: 0;
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    /* ── Uchuu YouTube slide ───────────────────────── */
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      box-sizing: border-box;
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      width: 100%;
      height: 100%;
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      max-height: 100%;
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    /* ── Zeldovich slide ────────────────────────────── */
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    /* ── Neural Ratio Estimation slide ──────────────── */
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      flex: none;
      font-size: 0.68em;
      text-align: left;
      margin-top: 0.3em;
      transform: translate(3mm, -5mm);
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    /* ── PDF alignment overrides ────────────────────── */
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    .reveal .slides section.pdf-full-figure .content-row {
      display: block;
      position: relative;
      min-height: 432px;
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    }
    .reveal .slides section.pdf-next-decade .slide-img,
    .reveal .slides section.pdf-century-surveys .slide-img {
      max-height: 554.4px;
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      max-height: 554.4px;
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      right: 1em;
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    .reveal .slides section.pdf-top-text-images .content-row,
    .reveal .slides section.pdf-summary-comparison .content-row,
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    .reveal .slides section.pdf-top-text-images .text-col,
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    /* ── uchuu-youtube page 2 (two images) ─────────── */
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      height: 540px;
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      height: 100%;
      width: auto;
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      object-fit: contain;
    }

    /* ── Books & resources slide ────────────────────── */
    .books-and-courses {
      display: flex;
      flex-direction: column;
      gap: 0;
      flex: 1;
      justify-content: center;
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    /* ── Mixed content ───────────────────────────────── */
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      display: flex;
      flex-direction: column;
      align-items: center;
      gap: 0.5em;
    }
    .mixed-content .slide-img {
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