:root{color-scheme:light;--paper:#f8f8f4;--ink:#242829;--muted:#555e60;--rule:#90999a;--wash:#eeefeb;--accent:#364e49;font-family:'Noto Sans JP','Yu Gothic',Meiryo,system-ui,sans-serif;color:var(--ink);background:var(--paper);font-synthesis:none}
*{box-sizing:border-box}html{scroll-padding-top:24px}body{margin:0;font-size:18px;line-height:1.9}a{color:inherit;text-underline-offset:.25em;text-decoration-thickness:1px}a:hover{color:var(--accent)}a:focus-visible{outline:3px solid var(--accent);outline-offset:5px}img{display:block;width:100%;height:auto}p{margin:0 0 1.25em}h1,h2,h3{font-weight:500;line-height:1.55;margin:0;text-wrap:balance;overflow-wrap:anywhere}h1{font-size:clamp(30px,3.5vw,52px);letter-spacing:.01em}h2{font-size:clamp(24px,2.3vw,32px)}h3{font-size:24px}figure{margin:0}figcaption,.meta,.eyebrow,.source-note,.sources,.breadcrumbs,.article-toc,.site-footer,.article-next,.feature-label{font-size:16px}figcaption{margin-top:12px;color:var(--muted);line-height:1.75}ul,ol{padding-left:1.4em}li{margin-block:.35em}svg{flex:none}section{scroll-margin-top:24px}
.skip-link{position:absolute;left:16px;top:12px;transform:translateY(-180%);z-index:2;background:var(--paper);padding:10px 16px}.skip-link:focus{transform:none}.site-header{max-width:1440px;margin:auto;padding:28px clamp(20px,5vw,64px);display:flex;justify-content:space-between;align-items:center;gap:26px;border-bottom:1px solid var(--rule)}.brand{display:block;text-decoration:none;line-height:1.5}.brand-title{font-weight:600;font-size:20px;display:block}.brand-maker{font-size:16px;color:var(--muted);display:block;letter-spacing:.015em}.site-nav{display:flex;flex-wrap:wrap;gap:12px 24px;font-size:16px}.site-nav a{padding-block:8px;white-space:nowrap}.site-nav a[aria-current=page]{text-decoration-thickness:2px}.page{max-width:1280px;margin:auto;padding:0 clamp(20px,5vw,64px)}.breadcrumbs{padding:26px 0 0;color:var(--muted)}.breadcrumbs ol{list-style:none;padding:0;margin:0;display:flex;flex-wrap:wrap;gap:6px 10px}.breadcrumbs li{display:flex;gap:10px}.breadcrumbs li+li:before{content:'/';color:var(--rule)}.feature-heading{padding:50px 0 36px;max-width:960px}.eyebrow{font-family:system-ui,sans-serif;color:var(--accent);letter-spacing:.06em;margin:0 0 14px;font-weight:600}.feature-heading .lead{font-size:clamp(18px,1.6vw,21px);line-height:1.95;margin:26px 0 24px;max-width:46em}.meta{color:var(--muted);margin:0}.hero-photo{margin:10px 0 50px}.hero-photo img{aspect-ratio:1460/974;object-fit:cover;max-height:720px}.hero-photo--music img{aspect-ratio:16/9;max-height:570px}.photo-link{position:relative;display:block}.photo-link img{transition:filter .2s}.photo-link:hover img{filter:brightness(.9)}.photo-link .play-label{position:absolute;bottom:22px;left:22px;display:inline-flex;align-items:center;gap:12px;background:var(--paper);color:var(--ink);font-size:16px;line-height:1.6;padding:12px 18px;box-shadow:none;max-width:calc(100% - 44px)}
.article-layout{display:grid;grid-template-columns:210px minmax(0,1fr);gap:60px;align-items:start;margin-bottom:70px}.article-toc{border-top:1px solid var(--ink);padding-top:20px;position:sticky;top:24px}.article-toc h2{font-size:18px;font-weight:600;margin-bottom:16px}.article-toc ol{padding-left:1.2em}.article-toc a{text-decoration:none;line-height:1.6;display:inline-block;padding:5px 0}.article-toc a:hover{text-decoration:underline}.article-body{max-width:790px;min-width:0}.article-section{padding-top:32px;margin-bottom:48px;border-top:1px solid var(--rule)}.article-section h2{margin-bottom:22px}.article-section p{overflow-wrap:anywhere}.source-note{color:var(--muted);line-height:1.7;margin:20px 0 10px}.sources{display:flex;flex-wrap:wrap;gap:10px 22px;line-height:1.7;list-style:none;padding:0;margin:18px 0 0}.sources li{margin:0}.source-note+.sources{margin-top:10px}.video-links{list-style:none;padding:0;margin:24px 0;display:grid;gap:0;border-top:1px solid var(--rule)}.video-link{padding:24px 0;display:grid;grid-template-columns:38px minmax(0,1fr) 18px;align-items:center;gap:14px;text-decoration:none;border-bottom:1px solid var(--rule)}.video-link .video-title{font-size:21px;line-height:1.6;display:block}.video-link .video-meta{font-size:16px;color:var(--muted);display:block;margin-top:6px}.video-link:hover .video-title{text-decoration:underline;text-underline-offset:.2em}.video-links li{margin:0}.listen-icon{border:1px solid var(--ink);width:38px;height:38px;display:grid;place-items:center}.listen-icon svg{width:16px;height:16px}.article-closing{border-top:2px solid var(--ink);padding:30px 0 0}.official-links{list-style:none;padding:0;display:flex;flex-wrap:wrap;gap:8px 22px;font-size:16px}.article-next{border-top:1px solid var(--rule);padding:30px 0;display:flex;flex-wrap:wrap;justify-content:space-between;gap:20px}.article-next a{max-width:45ch}.site-footer{border-top:1px solid var(--ink);max-width:1440px;margin:auto;padding:36px clamp(20px,5vw,64px) 50px;color:var(--muted)}.site-footer .maker{font-size:18px;color:var(--ink);font-weight:600;margin-bottom:8px}.site-footer nav{display:flex;flex-wrap:wrap;gap:12px 24px;margin-top:20px}.site-footer p{margin-bottom:12px}
.feature-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:32px;margin:12px 0 64px}.feature-card{min-width:0;border-top:2px solid var(--ink);padding-top:22px}.feature-card>a{display:block;text-decoration:none}.feature-card img{aspect-ratio:3/2;object-fit:cover;margin-bottom:22px}.feature-card h2{font-size:25px;margin:12px 0 16px}.feature-card p{margin:0 0 18px;font-size:18px}.feature-card a:hover h2{text-decoration:underline;text-underline-offset:.2em}.feature-label{font-family:system-ui,sans-serif;letter-spacing:.06em;color:var(--accent)}.read-link{font-size:16px;border-bottom:1px solid currentColor;padding-bottom:4px}.index-more{border-top:1px solid var(--rule);padding:30px 0 48px;display:grid;grid-template-columns:1fr 2fr;gap:30px}.index-more h2{font-size:23px}.index-more ul{list-style:none;margin:0;padding:0;display:grid;gap:14px}.index-more li{margin:0}.index-more a{font-size:18px}.index-more span{color:var(--muted);display:block;font-size:16px;margin-top:4px}
.keep-word{white-space:nowrap}

.hero-photo--art img{aspect-ratio:3/2;object-fit:contain;max-height:620px;background:#e7e7dd}.photo-gallery{display:grid;grid-template-columns:1fr 1fr;gap:26px 22px;margin-block:26px}.photo-gallery figure{min-width:0}.photo-gallery .gallery-wide{grid-column:1/-1}.photo-gallery img{height:auto;object-fit:contain}.photo-gallery figcaption{margin-top:8px}.article-next a{max-width:40ch}
@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition:none!important}}
@media(max-width:960px){.site-header{align-items:flex-start;flex-direction:column;gap:12px;padding-top:22px;padding-bottom:20px}.site-nav{gap:6px 22px}.article-layout{grid-template-columns:1fr;gap:32px}.article-toc{position:static}.article-toc ol{display:grid;grid-template-columns:1fr 1fr;gap:0 26px;margin-bottom:0}.article-body{max-width:790px}.feature-heading{padding-top:34px}.feature-grid{grid-template-columns:1fr 1fr;gap:30px}.hero-photo{margin-bottom:36px}.article-section{margin-bottom:38px}.index-more{grid-template-columns:1fr;gap:18px}}
@media(max-width:620px){body{font-size:18px;line-height:1.95}.brand-title{font-size:19px}.site-header{padding-inline:20px}.page{padding-inline:20px}.site-nav{gap:3px 18px}.site-nav a{padding:6px 0}.feature-heading{padding-top:30px;padding-bottom:22px}.feature-heading .lead{margin-top:20px}.feature-grid{grid-template-columns:1fr;gap:38px;margin-top:10px}.feature-card h2{font-size:25px}.hero-photo img{max-height:none}.article-toc ol{grid-template-columns:1fr}.article-layout{gap:28px;margin-bottom:38px}.article-section{padding-top:25px}.article-section h2{font-size:25px}.photo-link .play-label{left:12px;bottom:12px;max-width:calc(100% - 24px);padding:9px 12px}.video-link{grid-template-columns:30px minmax(0,1fr) 14px;gap:12px;padding:22px 0}.listen-icon{width:30px;height:30px}.video-link .video-title{font-size:19px}.article-next{display:grid}.site-footer{padding-inline:20px}.breadcrumbs{font-size:16px}.sources{display:grid;gap:12px}.official-links{display:grid;gap:10px}}
@media print{.site-header,.site-nav,.article-toc,.article-next,.site-footer,.play-label{display:none!important}.page{max-width:none;padding:0}.article-layout{display:block}.hero-photo{max-width:70%;margin-inline:auto}body{background:#fff;color:#000;font-size:12pt}.article-section{break-inside:avoid}.feature-heading{padding-top:0}}
:root{--feature-video-bg:#143e43}
.video-stage{aspect-ratio:16/9;min-height:200px;background:var(--feature-video-bg);border-radius:12px;overflow:hidden;margin:20px 0 0}
.video-stage button{width:100%;min-height:200px;height:100%;border:0;background:transparent;color:#fff;padding:24px;display:flex;flex-direction:column;gap:16px;align-items:center;justify-content:center;font:inherit;cursor:pointer}
.video-stage button svg{width:42px;height:42px}.video-stage button small{font-size:13px;color:#dcebea}.video-stage iframe{display:block;width:100%;height:100%;min-height:200px;border:0}
.hero-photo--small{max-width:350px;margin-inline:auto}.hero-photo--small img{height:auto;object-fit:contain}.photo-gallery img{object-fit:contain;max-height:600px}.photo-gallery figure:has(img[width="350"]){max-width:350px;margin-inline:auto}
.feature-card:has(img[width="350"]) img{max-width:350px;margin-inline:auto}
.video-stage{width:100%;min-width:0}.video-link{grid-template-columns:minmax(0,1fr) 18px}.video-link>span{min-width:0;overflow-wrap:anywhere}
.video-links{grid-template-columns:minmax(0,1fr)}.video-links>li{min-width:0}

/* Headings: Noto Serif JP. Body: Noto Sans JP. */
@font-face{font-family:'Noto Sans JP';font-style:normal;font-weight:100 900;font-display:swap;src:url('/immersive/media/noto-sans-jp.woff') format('woff')}
@font-face{font-family:'Noto Serif JP';font-style:normal;font-weight:500 700;font-display:swap;src:url('/immersive/media/noto-serif-jp.woff') format('woff')}
.cm-image-link{display:block;cursor:pointer}.cm-image-link:focus-visible{outline:3px solid currentColor;outline-offset:4px}body{font-family:'Noto Sans JP',system-ui,sans-serif}body :is(h1,h2,h3,h4){font-family:'Noto Serif JP',Georgia,serif!important}