:root{--paper:#fbf8f1;--panel:#fff;--ink:#1d2433;--ink-soft:#596172;--grid:#e3ddcc;--light:#ffe36e;--light-soft:#fff3b8;--plastic:#c9e3f0;--sky:#dceef7;--water-deep:#3f86b8;--red:#d9483b;--border:2.5px;--border-thin:2px;--radius-xs:5px;--radius-s:10px;--radius-m:14px;--radius-pill:999px;--round:50%;--lift:0 5px 0 var(--ink);--lift-hover:0 7px 0 var(--ink);--lift-press:0 1px 0 var(--ink);--font-head:"Zen Maru Gothic", "Hiragino Maru Gothic ProN", "BIZ UDPGothic", "Noto Sans JP", sans-serif;--font-body:"Noto Sans JP", "Hiragino Kaku Gothic ProN", "Yu Gothic", Meiryo, sans-serif;--fast:.16s}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:20px}body{color:var(--ink);background-color:var(--paper);background-image:linear-gradient(color-mix(in srgb, var(--grid) 55%, transparent) 1px, transparent 1px), linear-gradient(90deg, color-mix(in srgb, var(--grid) 55%, transparent) 1px, transparent 1px);font-family:var(--font-body);-webkit-font-smoothing:antialiased;background-size:28px 28px;margin:0;font-size:16px;line-height:1.9}a{color:inherit;text-decoration:none}button{font:inherit;color:inherit;cursor:pointer;background:0 0;border:0}a,button,input{transition:color var(--fast), background-color var(--fast), border-color var(--fast), box-shadow var(--fast), transform var(--fast)}:is(a:focus-visible,button:focus-visible,input:focus-visible){outline:3px solid var(--water-deep);outline-offset:3px;border-radius:var(--radius-s)}svg{display:block}h1,h2,h3,p{margin:0}h1,h2,h3{font-family:var(--font-head);word-break:auto-phrase;font-weight:900;line-height:1.35}.phrase{display:inline-block}.wrap{width:min(1120px,100% - 80px);margin-inline-start:auto;margin-inline-end:auto}.skip-link{z-index:10;background:var(--ink);color:var(--paper);border-radius:var(--radius-s);transition:top var(--fast);padding:10px 16px;font-size:14px;position:absolute;top:-64px;left:12px}.skip-link:focus-visible{top:12px}.prose a,.source a,.lead a,.license-note a,.sequel a{text-decoration:underline;text-decoration-thickness:var(--border-thin);text-underline-offset:.25em;-webkit-text-decoration-color:var(--water-deep);text-decoration-color:var(--water-deep);border-radius:var(--radius-xs)}.prose a:hover,.source a:hover,.lead a:hover,.license-note a:hover,.sequel a:hover{background-color:var(--light);-webkit-text-decoration-color:var(--ink);text-decoration-color:var(--ink)}.eyebrow{background:var(--ink);color:var(--paper);border-radius:var(--radius-pill);font-family:var(--font-head);margin-bottom:14px;padding:5px 14px;font-size:13px;font-weight:700;line-height:1.5;display:inline-block}.actions{flex-wrap:wrap;align-items:center;gap:16px;margin-top:22px;display:flex}.primary,.secondary{border:var(--border) solid var(--ink);border-radius:var(--radius-pill);box-shadow:var(--lift);font-family:var(--font-head);white-space:nowrap;align-items:center;gap:12px;padding:10px 22px;font-size:16px;font-weight:700;line-height:1.5;display:inline-flex}.primary{background:var(--light)}.secondary{background:var(--panel)}.primary:hover,.secondary:hover{box-shadow:var(--lift-hover);transform:translateY(-2px)}.primary:hover{background:var(--light-soft)}.secondary:hover{background:var(--sky)}.primary:active,.secondary:active{box-shadow:var(--lift-press);transform:translateY(4px)}.actions svg{stroke:currentColor;stroke-width:2.5px;stroke-linecap:round;stroke-linejoin:round;fill:none;width:16px;height:16px}.primary svg{fill:currentColor}.status{border:var(--border-thin) solid var(--ink);border-radius:var(--radius-pill);background:var(--paper);font-family:var(--font-head);white-space:nowrap;padding:2px 10px;font-size:12px;font-weight:700;line-height:1.6;display:inline-block}.status.starter{background:var(--light)}.status.sample{border-color:var(--red);color:var(--red);background:var(--panel)}.masthead{border-bottom:var(--border) solid var(--ink);justify-content:space-between;align-items:center;gap:16px;min-height:72px;display:flex}.brand{border-radius:var(--radius-s);align-items:center;gap:10px;display:flex}.brand svg{width:40px;height:40px;transition:transform var(--fast)}.brand:hover svg{transform:translateY(-2px)rotate(-4deg)}.brand-name{font-family:var(--font-head);letter-spacing:.02em;font-size:28px;font-weight:900;line-height:1}.brand-note{color:var(--ink-soft);margin-left:8px;font-size:13px;line-height:1.4}.masthead nav{gap:6px;display:flex}.masthead nav a{border-radius:var(--radius-pill);font-family:var(--font-head);white-space:nowrap;padding:6px 14px;font-size:14px;font-weight:700;line-height:1.6}.masthead nav a:hover{background:var(--light)}.masthead nav a[aria-current=page]{background:var(--ink);color:var(--paper)}.intro{grid-template-columns:auto 1fr;align-items:end;gap:24px 56px;padding:40px 0 34px;display:grid}.intro-copy{flex-wrap:wrap;justify-content:space-between;align-items:flex-end;gap:14px 28px;display:flex}.count-link,.more-link{border:var(--border-thin) solid var(--ink);border-radius:var(--radius-pill);background:var(--panel);font-family:var(--font-head);white-space:nowrap;align-items:center;gap:8px;padding:4px 14px 4px 12px;font-size:14px;font-weight:700;line-height:1.6;display:inline-flex}.count-link:hover,.more-link:hover{background:var(--light)}.count-link svg,.more-link svg{stroke:currentColor;stroke-width:2.5px;stroke-linecap:round;stroke-linejoin:round;fill:none;width:14px;height:14px}.count-num{font-size:22px;font-weight:900;line-height:1.2}h1{letter-spacing:.01em;font-size:46px;line-height:1.25}.intro-copy p{font-size:16px;line-height:1.9}.intro-copy p,.lead,.prose p,.watch-main>p,.watch-tagline,.prose li,.license-note,.supplement p,.supplement li,.data-table td,.data-table th,.t-text{word-break:auto-phrase;text-wrap:pretty}.drawing{border:var(--border) solid var(--ink);border-radius:var(--radius-m);background:var(--panel);max-width:920px;box-shadow:var(--lift);font-family:var(--font-head);margin:auto;position:relative;overflow:hidden}.player-heading{border-bottom:var(--border) solid var(--ink);background:var(--panel);padding:10px 18px}.player-heading h2{font-size:17px;font-weight:700;line-height:1.5}.screen{aspect-ratio:16/9;background:var(--paper);position:relative;overflow:hidden}.diagram{width:100%;height:100%;display:block}.diagram,.diagram *{transition:none!important;animation:none!important}.diagram .an-t--head{font-family:var(--font-head)}.diagram .an-t--body{font-family:var(--font-body)}.video{aspect-ratio:16/9;background:var(--paper);width:100%;height:auto;display:block}.visually-hidden{clip-path:inset(50%);white-space:nowrap;width:1px;height:1px;margin:-1px;padding:0;position:absolute;overflow:hidden}.mobile-subtitle{display:none}.controls{border-top:var(--border) solid var(--ink);background:var(--panel);align-items:center;gap:14px;min-height:58px;padding:9px 16px;font-size:13px;font-weight:700;line-height:1.5;display:flex}.transport{border:var(--border-thin) solid var(--ink);border-radius:var(--radius-pill);background:var(--light);min-width:100px;height:38px;font-family:var(--font-head);white-space:nowrap;justify-content:center;align-items:center;gap:8px;padding:0 16px;font-size:14px;font-weight:700;display:flex}.transport:hover{background:var(--light-soft);transform:translateY(-1px)}.transport:active{transform:translateY(1px)}.transport svg{fill:currentColor;width:12px;height:14px}.timeline{-webkit-appearance:none;appearance:none;cursor:pointer;--progress:0%;background:0 0;flex:1;width:100%;min-width:25px;height:24px;margin:0}.timeline::-webkit-slider-runnable-track{border:var(--border-thin) solid var(--ink);border-radius:var(--radius-pill);background:linear-gradient(to right, var(--ink) var(--progress), var(--panel) var(--progress));height:10px}.timeline::-moz-range-track{border:var(--border-thin) solid var(--ink);border-radius:var(--radius-pill);background:var(--panel);height:6px}.timeline::-moz-range-progress{background:var(--ink);height:6px}.timeline::-webkit-slider-thumb{-webkit-appearance:none;appearance:none;background:var(--light);border:var(--border) solid var(--ink);border-radius:var(--round);width:20px;height:20px;transition:transform var(--fast);margin-top:-7px}.timeline::-moz-range-thumb{background:var(--light);border:var(--border) solid var(--ink);border-radius:var(--round);width:16px;height:16px;transition:transform var(--fast)}.timeline:hover::-webkit-slider-thumb{transform:scale(1.15)}.timeline:hover::-moz-range-thumb{transform:scale(1.15)}.time{white-space:nowrap;color:var(--ink-soft);font-variant-numeric:tabular-nums}.player-footnote{justify-content:flex-start;max-width:920px;margin:16px auto 0;display:flex}.section-heading{margin-bottom:20px}.section-heading h2{align-items:center;gap:12px;font-size:24px;display:flex}.section-heading h2:before{content:"";background:var(--light);border:var(--border) solid var(--ink);border-radius:var(--radius-xs);flex:none;width:18px;height:18px}.page-head{padding:44px 0 30px}.page-head h1{font-size:38px}.page-head .lead{max-width:38em;margin-top:16px}.listing{padding-bottom:72px}.page-head.with-count{flex-wrap:wrap;justify-content:space-between;align-items:flex-end;gap:10px 24px;display:flex}.list-count{font-family:var(--font-head);color:var(--ink-soft);font-size:14px;font-weight:700;line-height:1.6}.list-count .count-num{color:var(--ink);margin-right:2px}.watch-head{padding:30px 0 22px}.watch-head h1{font-size:36px}.watch-tagline{font-family:var(--font-head);color:var(--ink-soft);margin-top:8px;font-weight:700;line-height:1.7}.watch-stage{grid-template-columns:minmax(0,1fr) 300px;align-items:start;gap:32px;display:grid}.watch-screen .drawing{max-width:none}.side-title{align-items:center;gap:10px;font-size:18px;display:flex}.side-title:before{content:"";background:var(--light);border:var(--border) solid var(--ink);border-radius:var(--radius-xs);flex:none;width:14px;height:14px}.chapters{background:var(--panel);border:var(--border) solid var(--ink);border-radius:var(--radius-m);box-shadow:var(--lift);margin:12px 0 0;padding:6px;list-style:none}.chapter{border-radius:var(--radius-s);font-family:var(--font-head);grid-template-columns:28px minmax(0,1fr) auto;align-items:center;gap:10px;padding:8px 10px;font-size:15px;font-weight:700;line-height:1.5;display:grid}.chapter:hover{background:var(--sky)}.chapter[aria-current=true]{background:var(--light)}.chapter-num{background:var(--ink);width:28px;height:28px;color:var(--paper);border-radius:var(--round);place-items:center;font-size:13px;line-height:1;display:grid}.chapter-time{font-family:var(--font-body);color:var(--ink-soft);font-variant-numeric:tabular-nums;font-size:12px;font-weight:400}.chapter[aria-current=true] .chapter-time{color:var(--ink)}.crumbs ol{color:var(--ink-soft);flex-wrap:wrap;margin:0 0 14px;padding:0;font-size:13px;line-height:1.6;list-style:none;display:flex}.crumbs li+li:before{content:"›";margin:0 8px}.crumbs a{border-radius:var(--radius-xs);text-decoration:underline;-webkit-text-decoration-color:var(--grid);text-decoration-color:var(--grid);text-decoration-thickness:var(--border-thin);text-underline-offset:.25em}.crumbs a:hover{background:var(--light);color:var(--ink)}.watch-meta{color:var(--ink-soft);flex-wrap:wrap;align-items:center;gap:4px 14px;margin-top:20px;font-size:13px;line-height:1.8;display:flex}.watch-meta .status{color:var(--ink)}.watch-meta a{color:var(--ink);text-decoration:underline;-webkit-text-decoration-color:var(--water-deep);text-decoration-color:var(--water-deep);text-decoration-thickness:var(--border-thin);text-underline-offset:.25em;border-radius:var(--radius-xs)}.watch-meta a:hover{background:var(--light)}.supplement{margin-top:40px}.supplement h2{align-items:center;gap:12px;margin-bottom:14px;font-size:22px;display:flex}.supplement h2:before{content:"";background:var(--light);border:var(--border) solid var(--ink);border-radius:var(--radius-xs);flex:none;width:16px;height:16px}.supplement p,.supplement ul{max-width:44em;font-size:15px;line-height:1.9}.supplement p{margin-top:12px}.supplement ul{margin:0;padding-left:1.3em}.supplement li+li{margin-top:8px}.data-table{border-collapse:separate;border-spacing:0;background:var(--panel);border:var(--border) solid var(--ink);border-radius:var(--radius-m);width:100%;font-size:15px;line-height:1.75;overflow:hidden}.data-table th,.data-table td{text-align:left;vertical-align:top;border-bottom:var(--border-thin) dotted var(--grid);padding:12px 16px}.data-table thead th{background:var(--ink);color:var(--paper);font-family:var(--font-head);border-bottom:0;font-size:14px;font-weight:700}.data-table tbody th{width:40%;font-family:var(--font-head);font-weight:700}.data-table tbody tr:last-child th,.data-table tbody tr:last-child td{border-bottom:0}.more-videos{padding:8px 0 72px}.watch-body{grid-template-columns:minmax(0,1fr) 300px;align-items:start;gap:32px;padding:36px 0 56px;display:grid}.watch-main>p{max-width:40em}.watch-main>p+p{margin-top:10px}.watch-main .sequel{font-family:var(--font-head);flex-wrap:wrap;align-items:baseline;gap:6px 12px;margin-top:18px;font-weight:700;display:flex}.watch-main .sequel .status{background:var(--light)}.watch-aside .source{background:var(--panel);border:var(--border) solid var(--ink);border-radius:var(--radius-m);padding:16px 18px 18px;font-size:13px;line-height:1.75}.source-checked{color:var(--ink-soft);margin-top:4px;font-size:12px}.watch-aside .source ul{margin:10px 0 0;padding:0;list-style:none}.watch-aside .source li{border-top:var(--border-thin) dotted var(--grid);overflow-wrap:anywhere;padding:8px 0}.watch-aside .source li:last-child{padding-bottom:0}.watch-aside .license-note{color:var(--ink-soft);font-size:13px;line-height:1.8}@media (max-width:1000px){.watch-stage,.watch-body{grid-template-columns:1fr}.watch-stage{gap:22px}.chapters{grid-template-columns:repeat(2,minmax(0,1fr));display:grid}}.transcript{margin-top:44px}.transcript h2{font-size:22px}.transcript ol{background:var(--panel);border:var(--border) solid var(--ink);border-radius:var(--radius-m);margin:16px 0 0;padding:0 20px;list-style:none}.transcript li{border-bottom:var(--border-thin) dotted var(--grid);grid-template-columns:104px 140px 1fr;align-items:baseline;gap:14px;padding:14px 0;display:grid}.transcript li:last-child{border-bottom:0}.transcript .t-time{color:var(--ink-soft);font-variant-numeric:tabular-nums;text-decoration:underline;-webkit-text-decoration-color:var(--water-deep);text-decoration-color:var(--water-deep);text-decoration-thickness:var(--border-thin);text-underline-offset:.25em;border-radius:var(--radius-xs);font-size:13px}.transcript .t-time:hover{background:var(--light);color:var(--ink)}.transcript .t-title{font-family:var(--font-head);font-size:15px;font-weight:700}.transcript .t-text{font-size:15px;line-height:1.85}.prose{max-width:38em;padding-bottom:64px}.prose p+p,.prose ul+p{margin-top:14px}.prose h2{align-items:center;gap:12px;margin:44px 0 12px;font-size:22px;display:flex}.prose h2:before{content:"";background:var(--light);border:var(--border) solid var(--ink);border-radius:var(--radius-xs);flex:none;width:16px;height:16px}.prose>h2:first-child{margin-top:0}.prose ul{margin:14px 0 0;padding-left:1.3em}.prose .fine-note{color:var(--ink-soft);font-size:13px}.profile{background:var(--panel);border:var(--border) solid var(--ink);border-radius:var(--radius-m);margin:14px 0 18px;padding:16px 20px}.profile .p-name{font-family:var(--font-head);font-size:20px;font-weight:900;line-height:1.5}.profile .p-role{color:var(--ink-soft);margin-top:2px;font-size:13px;line-height:1.8}.mail-box{background:var(--panel);border:var(--border) solid var(--ink);border-radius:var(--radius-m);margin:18px 0 22px;padding:18px 22px 20px}.mail-box .mail-label{font-family:var(--font-head);color:var(--ink-soft);font-size:14px;font-weight:700;line-height:1.6}.mail-box .mail-address{font-family:var(--font-head);overflow-wrap:anywhere;font-size:26px;font-weight:900;line-height:1.5}.license-note{margin-top:16px;font-size:14px;line-height:1.9}.home-videos{padding-top:64px;padding-bottom:72px}.section-heading.with-link{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:12px 20px;display:flex}.more-actions{justify-content:center;margin-top:36px}.spotlight{grid-template-columns:minmax(0,1.5fr) minmax(0,1fr);align-items:center;gap:40px;display:grid}.spotlight-screen .drawing{max-width:none}.spotlight-body .eyebrow{background:var(--red);margin-bottom:12px}.spotlight-title{font-size:30px;line-height:1.4}.spotlight-title a{border-radius:var(--radius-xs)}.spotlight-title a:hover{background:var(--light)}.spotlight-tagline{font-family:var(--font-head);color:var(--ink-soft);margin-top:12px;font-weight:700;line-height:1.7}.spotlight-desc{margin-top:10px;font-size:15px;line-height:1.85}.spotlight-tagline,.spotlight-desc,.video-card-tagline{word-break:auto-phrase;text-wrap:pretty}.spotlight-meta{color:var(--ink-soft);flex-wrap:wrap;align-items:center;gap:6px 12px;margin-top:14px;font-size:13px;line-height:1.6;display:flex}.spotlight-meta .status{color:var(--ink)}.video-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:30px 26px;margin:0;padding:0;list-style:none;display:grid}.video-grid>li{display:flex}.video-card{background:var(--panel);border:var(--border) solid var(--ink);border-radius:var(--radius-m);width:100%;box-shadow:var(--lift);flex-direction:column;display:flex;overflow:hidden}.video-card:hover{box-shadow:var(--lift-hover);transform:translateY(-2px)}.video-card:active{box-shadow:var(--lift-press);transform:translateY(4px)}.video-card-thumb{aspect-ratio:16/7;background:var(--paper);border-bottom:var(--border) solid var(--ink);display:block;position:relative;overflow:hidden}.video-card-thumb img{width:100%;height:auto;display:block}.video-card:hover .video-card-thumb{background:var(--sky)}.video-card:hover .video-card-thumb img{mix-blend-mode:multiply}.video-card-time{background:var(--ink);color:var(--paper);border-radius:var(--radius-pill);font-family:var(--font-head);padding:2px 10px;font-size:12px;font-weight:700;line-height:1.6;position:absolute;bottom:10px;right:10px}.video-card-body{flex-direction:column;flex:1;align-items:flex-start;gap:8px;padding:16px 18px 18px;display:flex}.video-card-title{font-size:19px;line-height:1.45}.video-card-tagline{color:var(--ink-soft);font-size:14px;line-height:1.7}.video-card-date{color:var(--ink-soft);margin-top:auto;padding-top:4px;font-size:12px;line-height:1.6}@media (max-width:1000px){.video-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.spotlight{grid-template-columns:1fr;gap:22px}}.site-foot{border-top:var(--border) solid var(--ink);color:var(--ink-soft);flex-wrap:wrap;justify-content:space-between;align-items:center;gap:8px 16px;padding:20px 0 28px;font-size:13px;line-height:1.6;display:flex}.site-foot .rights{color:var(--ink)}.site-foot nav{flex-wrap:wrap;gap:0 4px;display:flex}.site-foot nav a{border-radius:var(--radius-pill);color:var(--ink);padding:6px 12px}.site-foot nav a:hover{background:var(--light)}@media (max-width:700px){.wrap{width:calc(100% - 36px)}body{background-size:24px 24px;font-size:15px}.masthead{min-height:64px}.brand-name{font-size:24px}.brand svg{width:34px;height:34px}.brand-note{display:none}.masthead nav{gap:0}.masthead nav a{padding:6px 9px;font-size:12px}.intro{padding:26px 0 24px;display:block}h1{font-size:34px}.intro-copy{margin-top:14px}.intro-copy p{font-size:15px}.primary,.secondary{padding:9px 18px;font-size:15px}.player-heading{padding:10px 12px}.player-heading h2{font-size:14px}.drawing[data-player] .screen{aspect-ratio:16/7}.drawing[data-player] .screen .diagram{aspect-ratio:16/9;height:auto}.render-mode .screen .diagram{height:100%}.mobile-subtitle{text-align:center;border-top:var(--border) solid var(--ink);background:var(--panel);justify-content:center;align-items:center;min-height:92px;margin:0;padding:10px 13px;font-size:15px;font-weight:700;line-height:1.6;display:flex}.controls{gap:8px;min-height:54px;padding-inline-start:10px;padding-inline-end:10px}.transport{min-width:84px;padding:0 10px;font-size:12px}.time{font-size:11px}.home-videos{padding-top:44px;padding-bottom:48px}.spotlight-title{font-size:24px}.video-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:20px 14px}.video-card-time{padding:1px 8px;font-size:11px;bottom:6px;right:6px}.video-card-body{gap:6px;padding:10px 12px 12px}.video-card-title{font-size:15px}.video-card-tagline{display:none}.section-heading h2{font-size:20px}.page-head{padding:30px 0 22px}.page-head h1{font-size:29px}.data-table thead{clip-path:inset(50%);width:1px;height:1px;position:absolute;overflow:hidden}.data-table,.data-table tbody,.data-table tr,.data-table th,.data-table td{width:auto;display:block}.data-table tbody th{border-bottom:0;width:auto;padding:12px 14px 2px}.data-table td{padding:0 14px 12px;font-size:14px}.data-table tbody tr:last-child td{border-bottom:0}.data-table td:before{content:attr(data-label) "：";font-family:var(--font-head);color:var(--ink-soft);font-weight:700}.watch-head{padding:22px 0 16px}.watch-head h1{font-size:25px}.watch-body{padding:28px 0 40px}.more-videos{padding-bottom:48px}.chapter{grid-template-columns:24px minmax(0,1fr);gap:8px;padding:7px 8px;font-size:13px}.chapter-num{width:24px;height:24px;font-size:12px}.chapter-time{display:none}.transcript ol{padding:0 14px}.transcript li{grid-template-columns:96px 1fr;gap:4px 12px}.transcript .t-text{grid-column:1/-1}.site-foot{font-size:12px}.site-foot nav a{padding:6px 8px}.site-foot nav{margin-inline-start:-8px;margin-inline-end:-8px}.mail-box .mail-address{font-size:21px}}@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}a,button,input,.brand svg{transition:none}}.render-mode body>:not(main),.render-mode main>:not(.render-target),.render-mode .render-target>:not(.screen){display:none}.render-mode main{width:100%}.render-mode .render-target{box-shadow:none;border:0;border-radius:0;max-width:none}.render-mode .screen{aspect-ratio:auto;position:fixed;top:0;bottom:0;left:0;right:0}
