:root{--paper:#f8f5ef;--ink:#24211e;--muted:#6f695f;--red:#b54532;--line:#d6d0c5;--white:#fff;--wide:1180px;scroll-behavior:smooth;scroll-padding-top:88px}*{box-sizing:border-box}body{margin:0;background:var(--paper);color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,'Noto Sans JP','Hiragino Kaku Gothic ProN',Meiryo,sans-serif;-webkit-font-smoothing:antialiased}button,a{-webkit-tap-highlight-color:transparent}a{color:inherit;text-underline-offset:5px}button{font:inherit;cursor:pointer}button:focus-visible,a:focus-visible,summary:focus-visible{outline:3px solid #37847b;outline-offset:5px}.skip{position:fixed;top:-100px}.skip:focus{top:12px;left:12px;background:white;z-index:50;padding:15px}.topbar{position:sticky;top:0;z-index:20;background:#f8f5eff5;border-bottom:1px solid var(--line);backdrop-filter:blur(14px)}.topinner{max-width:var(--wide);margin:auto;padding:17px 30px;display:flex;align-items:center;justify-content:space-between;gap:20px}.brand{font-size:14px;letter-spacing:.08em;font-weight:750;text-decoration:none}.brand small{font-size:11px;font-weight:400;margin-left:17px;letter-spacing:.08em}.toc-toggle{background:transparent;border:0;font-size:13px;display:flex;gap:10px;align-items:center;padding:6px 0}.toc-toggle i{width:20px;border-block:1px solid;height:10px}.reading-progress{position:absolute;bottom:-1px;left:0;height:2px;background:var(--red);width:0}.hero{max-width:var(--wide);margin:auto;padding:88px 30px 74px;position:relative}.eyebrow{display:flex;gap:12px;font-size:11px;letter-spacing:.14em;align-items:center;color:var(--muted);margin-bottom:30px}.eyebrow:before{content:'';width:30px;height:1px;background:var(--red)}h1{font-size:clamp(40px,6.6vw,82px);line-height:1.38;letter-spacing:-.065em;margin:0;max-width:1100px;font-weight:800}h1 em{font-style:normal;color:var(--red);position:relative}.title-row{display:block}.hero-bottom{display:flex;justify-content:space-between;gap:28px;align-items:end;margin-top:48px}.author{display:flex;gap:14px;align-items:center}.author-mark{width:40px;height:40px;display:grid;place-items:center;border:1px solid var(--ink);border-radius:50%;font-size:18px;background:#eee3cc}.author strong{font-size:15px;display:block}.author small,.meta{font-size:12px;line-height:1.8;color:var(--muted)}.hero-aside{max-width:330px;font-size:14px;line-height:1.9;margin:0}.intro-rule{max-width:var(--wide);margin:auto;height:1px;background:var(--ink)}.toc{max-width:var(--wide);margin:auto;padding:32px 30px 38px;border-bottom:1px solid var(--line)}.toc-label{margin:0 0 18px;font-size:11px;letter-spacing:.18em;color:var(--muted)}.toc ol{display:grid;grid-template-columns:repeat(2,1fr);gap:14px 40px;list-style:none;margin:0;padding:0}.toc a{font-size:14px;text-decoration:none;display:flex;gap:16px;line-height:1.7}.toc a:hover{color:var(--red)}.toc span{color:var(--red);font-size:11px;font-variant-numeric:tabular-nums;padding-top:3px}.chapter{max-width:var(--wide);margin:auto;padding:78px 30px 28px;border-bottom:1px solid var(--line)}.chapter-head{display:grid;grid-template-columns:60px 1fr;gap:12px;margin:0 0 50px;align-items:baseline}.chapter-no{font-size:14px;color:var(--red);font-weight:700;letter-spacing:.1em}.chapter h2{margin:0;font-size:clamp(24px,3.1vw,37px);line-height:1.5;letter-spacing:-.025em;font-weight:750}.beat{display:grid;grid-template-columns:minmax(0,.94fr) minmax(0,1.06fr);gap:55px;align-items:start;margin-bottom:64px}.visual{position:sticky;top:96px;margin:0}.slide-shell{border:1px solid #3b3833;background:white;position:relative;box-shadow:5px 6px 0 #e5dfd3;overflow:hidden}.slide-shell img{display:block;width:100%;height:auto;aspect-ratio:16/9;object-fit:contain;background:#fff}.zoom{position:absolute;inset:0;border:0;background:transparent;color:transparent;cursor:zoom-in}.zoom:after{content:'拡大';position:absolute;right:9px;bottom:9px;background:#f8f5eff2;border:1px solid #d6d0c5;border-radius:3px;padding:4px 8px;color:#655f57;font-size:10px;opacity:0;transition:opacity .15s}.zoom:hover:after,.zoom:focus-visible:after{opacity:1}.visual-tools{display:flex;justify-content:space-between;align-items:center;margin-top:14px;gap:8px;color:var(--muted);font-size:11px}.visual-tools>span{letter-spacing:.07em}.stage-controls{display:flex;align-items:center;gap:8px}.stage-controls button{border:1px solid #d4ccbf;border-radius:50%;width:30px;height:30px;background:transparent;color:#625b52;display:grid;place-items:center}.stage-controls button:disabled{opacity:.25;cursor:default}.stage-count{font-variant-numeric:tabular-nums;min-width:28px;text-align:center}.prose{max-width:620px}.prose p{font-size:17px;line-height:2.05;letter-spacing:.018em;margin:0 0 1.45em;overflow-wrap:anywhere}.prose p:last-child{margin-bottom:0}.prose .voice{padding:25px 28px;border:1px solid #cec2ad;border-radius:3px;background:#eee4d2;position:relative;font-weight:550;line-height:1.95;margin:4px 0 28px}.prose .voice:before{content:'';position:absolute;left:-9px;top:24px;width:15px;height:15px;background:#eee4d2;border-left:1px solid #cec2ad;border-bottom:1px solid #cec2ad;transform:rotate(45deg)}.chapter:nth-of-type(even){}.chapter .beat:last-child{margin-bottom:35px}.endnote{max-width:720px;margin:0 auto;padding:65px 30px 85px;text-align:center}.endnote .dot{display:block;color:var(--red);font-size:25px;margin-bottom:26px}.endnote p{font-size:13px;line-height:1.9;color:var(--muted)}.endnote a{display:inline-block;margin-top:18px;font-size:13px}.footer{padding:22px 30px;border-top:1px solid var(--line);font-size:11px;color:var(--muted);display:flex;justify-content:space-between;gap:20px;max-width:var(--wide);margin:auto}.reveal-word{display:inline}.lightbox{border:0;padding:0;background:#fff;width:min(1100px,94vw);max-height:92vh;overflow:auto;box-shadow:0 20px 80px #0007}.lightbox::backdrop{background:#211b17c9}.lightbox-head{padding:14px 18px;display:flex;align-items:center;justify-content:space-between;gap:20px;font-size:12px;color:#645e56}.lightbox button{min-width:44px;min-height:44px;background:transparent;border:1px solid #ccc}.lightbox img{display:block;width:100%;height:auto}.lightbox-foot{padding:15px 18px;display:flex;justify-content:center;align-items:center;gap:18px;font-size:13px}.lightbox-foot button{width:44px;border-radius:50%}body.modal-open{overflow:hidden}#toc-panel[hidden]{display:none}.mode-note{font-size:10px;text-transform:uppercase;letter-spacing:.11em}.stage-tag{font-weight:500}@media(min-width:1500px){:root{--wide:1280px}.prose p{font-size:18px}.beat{gap:70px}}
@media(max-width:800px){.topinner{padding:13px 21px}.brand small{display:none}.hero{padding:56px 23px 42px}h1{font-size:clamp(35px,7.5vw,59px);letter-spacing:-.055em;line-height:1.45}.hero-bottom{display:block;margin-top:30px}.hero-aside{margin-top:24px;max-width:100%;font-size:14px}.eyebrow{font-size:10px;margin-bottom:23px}.toc{padding:26px 23px}.toc ol{gap:12px;grid-template-columns:1fr}.toc a{font-size:14px}.chapter{padding:48px 23px 13px}.chapter-head{grid-template-columns:35px 1fr;gap:7px;margin-bottom:31px}.chapter h2{font-size:25px;line-height:1.6}.chapter-no{font-size:11px}.beat{display:block;margin-bottom:45px}.visual{position:relative;top:auto;margin-bottom:27px}.slide-shell{box-shadow:4px 5px 0 #e5dfd3}.prose{max-width:none}.prose p{font-size:17px;line-height:2.05;letter-spacing:.012em}.prose .voice{padding:21px 23px;margin-left:7px}.zoom:after{opacity:1}.stage-controls button{width:36px;height:36px}.visual-tools{margin-top:10px;font-size:10px}.endnote{padding:45px 23px}.footer{padding:20px 23px;display:block;line-height:2}.lightbox{width:96vw}.lightbox-head{padding:6px 12px}}@media(max-width:370px){.hero,.chapter,.toc{padding-left:18px;padding-right:18px}h1{font-size:32px}.prose p{font-size:16px}.chapter h2{font-size:23px}}
@media(prefers-reduced-motion:reduce){:root{scroll-behavior:auto}*{transition:none!important}}
@media print{.topbar,.toc,.visual-tools,.zoom,.footer,.endnote a{display:none}body{background:#fff}.hero{padding-top:0}h1{font-size:38px}.chapter{padding:25px 0}.chapter-head{margin-bottom:20px}.beat{display:block;break-inside:avoid;margin-bottom:25px}.visual{position:static;max-width:450px;margin:0 auto 25px}.slide-shell{box-shadow:none}.prose{max-width:none}.prose p{font-size:11pt}.lightbox{display:none}}
.diagram{padding:34px 26px 28px;min-height:250px;text-align:center}.diagram-title{font-size:17px;font-weight:700;line-height:1.7;margin:0 0 26px}.route-pair{display:flex;gap:18px;justify-content:center}.route-box{padding:22px 16px;border:1px solid #c9c8c2;flex:1;line-height:1.8;font-size:16px}.blue{background:#e8eef0}.pink{background:#f4e7e7}.route-arrows{font-size:30px;line-height:1.4;color:#777}.route-goal{font-size:21px;line-height:1.7;font-weight:750;margin:8px 0}.red-note{color:var(--red);font-size:14px;line-height:1.7;margin:24px 0 0}.likes-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}.likes-grid>div{border:1px solid #ddd7cc;padding:18px 7px;background:#faf8f3}.like-num{display:block;font-size:10px;letter-spacing:.1em;color:var(--red);margin-bottom:9px}.likes-grid strong{font-size:16px;font-weight:650;white-space:nowrap}.choice-top{font-size:15px;color:#736e65;margin:20px 0;text-decoration:line-through}.choice-main{display:flex;flex-direction:column;gap:10px;font-size:21px;line-height:1.7;font-weight:700}.time-bar{display:flex}.time-bar>div{width:50%;padding:20px 8px;background:#e8eef0;border:1px solid #c5cdd0}.time-bar>div+div{background:#f4e7e7;border-color:#d9c6c6;border-left:0}.time-bar span{font-size:14px;display:block}.time-bar strong{display:block;font-size:52px;line-height:1.4;font-weight:800}.time-bar strong span{font-size:15px;display:inline;margin-left:4px}.time-bar small{font-size:11px;line-height:1.7}.routes-story>div{display:flex;gap:12px;align-items:center;justify-content:space-between;padding:22px 0;border-bottom:1px solid #ddd7cb;font-size:16px}.routes-story>div strong{font-size:15px;font-weight:650}.routes-story b{color:#999;font-weight:400}.closing-title{text-align:left;padding:35px}.closing-small{color:var(--red);font-size:13px}.closing-title p{font-size:17px;margin:22px 0 5px}.closing-title h3{font-size:clamp(25px,2.6vw,35px);line-height:1.7;letter-spacing:-.04em;margin:0}.closing-title h3 em{font-style:normal;color:var(--red)}.closing-title .closing-last{text-align:right;font-size:16px}.original-slide{border:0;border-bottom:1px solid #bdb5a9;background:none;color:#655f57;padding:4px 0;font-size:10px;min-height:30px}.spoken{background:linear-gradient(transparent 57%,#ecdbc2 57%);box-decoration-break:clone;-webkit-box-decoration-break:clone}.redesigned .slide-shell{overflow:visible}.chapter-head{position:relative}.chapter-head:after{content:'';height:1px;width:30px;background:var(--red);position:absolute;left:0;bottom:-14px}@media(max-width:800px){.diagram{padding:28px 22px;min-height:220px}.diagram-title{font-size:16px}.likes-grid{grid-template-columns:repeat(2,1fr)}.route-box{font-size:15px;padding:20px 10px}.route-goal{font-size:21px}.closing-title h3{font-size:29px}.redesigned .visual-tools>span{font-size:9px}.routes-story>div{font-size:15px;gap:8px}}

.toc-toggle{min-height:44px}.original-slide{min-height:44px}.lightbox-head button{min-height:44px}

.lightbox-canvas{overflow:auto;max-height:70vh;overscroll-behavior:contain}.lightbox-canvas.large img{width:1400px;max-width:none}.lightbox-head>span{margin-right:auto}.lightbox-head{gap:10px}.lightbox-head button{padding:0 12px;font-size:12px;white-space:nowrap}

.lecture-memory{max-width:850px;margin:64px auto 0;padding:0 30px}.lecture-memory img{display:block;width:100%;height:auto;border:1px solid #3b3833;box-shadow:5px 6px 0 #e5dfd3}.lecture-memory figcaption{font-size:12px;color:var(--muted);margin-top:15px;line-height:1.8}.lecture-scene{margin:38px 0 0}.lecture-scene img{display:block;width:100%;height:auto;border:1px solid #3b3833;box-shadow:5px 6px 0 #e5dfd3}.lecture-scene figcaption{font-size:11px;color:var(--muted);margin-top:13px;line-height:1.8}.lecture-insert{max-width:760px;margin:0 auto 55px}.lecture-insert img{display:block;width:100%;height:auto;border:1px solid #3b3833}.lecture-insert figcaption{font-size:11px;line-height:1.8;color:var(--muted);margin-top:12px}@media(max-width:800px){.lecture-memory{margin-top:40px;padding:0 23px}.lecture-scene{margin-top:30px}.lecture-insert{margin-bottom:32px}}

.lecture-scene{max-width:790px;margin:44px auto 0}.lecture-real .slide-shell img{aspect-ratio:auto}.lecture-real{max-width:520px}.lecture-real .visual-tools{flex-wrap:wrap}@media(max-width:800px){.lecture-scene{margin-top:30px}.lecture-real{max-width:none}}

.hero{padding-top:60px}.hero-lead{max-width:790px;font-size:20px;line-height:1.95;letter-spacing:.015em;margin:32px 0 0}.hero .hero-bottom{max-width:790px;margin:28px auto 0;align-items:center}.read-on{display:flex;align-items:center;justify-content:space-between;gap:30px;min-height:48px;padding:10px 0;border-bottom:1px solid var(--ink);font-size:14px;font-weight:700;text-decoration:none;white-space:nowrap}.read-on span{font-size:20px;font-weight:400}.read-on:hover{color:var(--red);border-color:var(--red)}@media(max-width:800px){.hero{padding-top:38px}.hero-lead{font-size:17px;line-height:1.95;margin-top:25px}.hero .hero-bottom{display:block;margin-top:22px}.read-on{width:100%;margin-top:20px}.hero .lecture-scene{margin-top:27px}}

.lecture-context{max-width:790px;margin:27px 0 0;padding:22px 24px;background:#efe8dc;border:1px solid #c9beac;display:grid;grid-template-columns:auto 1fr;gap:20px;align-items:start}.context-label{font-size:11px;font-weight:750;line-height:1.6;padding:5px 9px;background:var(--ink);color:#fff;letter-spacing:.06em;white-space:nowrap}.lecture-context h2{font-size:16px;line-height:1.7;margin:0 0 8px;font-weight:750}.lecture-context p{font-size:14px;line-height:1.9;margin:0;letter-spacing:.02em}.lecture-start{max-width:var(--wide);margin:0 auto;padding:34px 30px 0;color:var(--red);font-size:13px;letter-spacing:.06em}.lecture-start span:before{content:"";display:inline-block;width:24px;height:1px;vertical-align:middle;background:var(--red);margin-right:14px}#lecture-start{scroll-margin-top:90px}@media(max-width:800px){.lecture-context{padding:20px;gap:12px;display:block;margin-top:24px}.context-label{display:inline-block;margin-bottom:12px}.lecture-context h2{font-size:16px}.lecture-context p{font-size:14px}.lecture-start{padding:29px 23px 0}}

/* Quiet editorial opening: photo and speech carry the introduction. */
.hero{max-width:850px;padding-bottom:42px}
.hero h1{font-size:clamp(35px,5.5vw,66px)}
.hero-lead{margin-left:auto;margin-right:auto}
.lecture-details{max-width:790px;margin:28px auto 0;color:var(--muted);font-size:13px;line-height:1.9}
.lecture-details p{margin:0 0 5px}
.lecture-details span{margin-left:1em;font-size:12px}
.lecture-scene img,.slide-shell{box-shadow:none}
.chapter-head:after{display:none}
@media(max-width:800px){.hero{padding-top:32px;padding-bottom:24px}.hero h1{font-size:clamp(32px,7.5vw,59px)}.lecture-details{font-size:12px;margin-top:24px}.lecture-details span{display:block;margin-left:0;font-size:11px}.slide-shell{box-shadow:none}}

.lecture-preface,.afterword{max-width:850px;margin:0 auto;padding:28px 30px 12px}
.lecture-preface p,.afterword p{font-size:17px;line-height:2.05;letter-spacing:.012em;margin:0 0 1.45em}
.lecture-preface .talk-transition{margin:38px 0 0}
.intro-video{max-width:320px;margin:28px auto 0}
.intro-video iframe{display:block;width:100%;aspect-ratio:9/16;border:0;background:#111}
.intro-video figcaption{margin-top:10px;font-size:12px;line-height:1.7;color:var(--muted)}
.afterword{padding-top:54px;padding-bottom:12px}
.afterword h2{font-size:21px;margin:0 0 24px;line-height:1.6}
@media(max-width:800px){.lecture-preface,.afterword{padding-left:23px;padding-right:23px}.lecture-preface{padding-top:24px}.afterword{padding-top:38px}.intro-video{max-width:290px}}
@media(max-width:370px){.lecture-preface,.afterword{padding-left:18px;padding-right:18px}.lecture-preface p,.afterword p{font-size:16px}}

.lecture-inquiry{max-width:790px;margin:48px auto 0;padding:32px 0 0;border-top:1px solid var(--line)}
.lecture-inquiry h2{font-size:21px;line-height:1.6;margin:0 0 16px}
.lecture-inquiry p{font-size:15px;line-height:1.95;margin:0 0 22px;max-width:650px}
.inquiry-primary{display:inline-flex;align-items:center;gap:28px;min-height:44px;font-size:16px;font-weight:650;text-decoration-thickness:1px}
.inquiry-secondary{display:block;width:fit-content;min-height:44px;margin-top:8px;padding-top:10px;font-size:12px;color:var(--muted)}
@media(max-width:850px){.lecture-inquiry{margin:36px 23px 0;padding-top:26px}.lecture-inquiry p{font-size:14px}.lecture-inquiry h2{font-size:20px}}

.lecture-inquiry .individual-inquiry{font-size:13px;line-height:1.9;margin:22px 0 0;color:var(--muted)}

/* Mark the opening excerpt and lecture context without a card treatment. */
.hero-excerpt{max-width:790px;margin:32px auto 0}
.excerpt-label{color:var(--muted);font-size:11px;line-height:1.6;letter-spacing:.08em}
.hero-excerpt .hero-lead{max-width:none;margin:12px 0 0;padding-left:14px;border-left:1px solid var(--line);line-height:1.85}
.hero-excerpt .hero-lead p{margin:0}
.lecture-details{margin-top:34px;color:var(--ink);font-size:16px;line-height:1.9}
.lecture-details h2{font-size:24px;line-height:1.55;margin:0 0 12px;font-weight:700;letter-spacing:.015em}
.lecture-details p{color:var(--ink);margin:0}
.lecture-details .lecture-date{color:var(--muted);font-size:12px;line-height:1.5;letter-spacing:.06em;margin:0 0 10px}
.lecture-details .lecture-bridge{max-width:46em;text-wrap:balance}
.lecture-preface .intro-slide{position:relative;top:auto;max-width:760px;margin:38px 0 28px}
#chapter-1{padding-top:36px}
.hero{padding-bottom:30px}
.lecture-preface{position:relative;padding-top:30px}
.lecture-preface::before{content:"";position:absolute;top:0;left:30px;right:30px;border-top:1px solid var(--line)}
@media(max-width:800px){.hero{padding-bottom:24px}.hero-excerpt{margin-top:25px}.hero-excerpt .hero-lead{padding-left:12px}.lecture-details{margin-top:28px;font-size:16px}.lecture-details h2{font-size:20px;margin-bottom:10px}.lecture-preface{padding-top:28px}.lecture-preface::before{left:23px;right:23px}.lecture-preface .intro-slide{margin-top:32px;margin-bottom:24px}#chapter-1{padding-top:24px}}
@media(max-width:370px){.lecture-details h2{font-size:18px}.lecture-preface::before{left:18px;right:18px}}

/* Isolated review preview: heading before the spoken self-introduction. */
.selfintro-heading{grid-template-columns:1fr;gap:0;margin:0 0 24px}
@media(max-width:800px){.selfintro-heading{margin-bottom:22px}}
.selfintro-heading h2{margin:0;font-size:clamp(24px,3.1vw,37px);line-height:1.5;letter-spacing:-.025em;font-weight:750}
@media(max-width:800px){.selfintro-heading h2{font-size:25px;line-height:1.6}}
@media(max-width:370px){.selfintro-heading h2{font-size:23px}}

/* Desktop reading order: slide, prose, then the next slide. */
@media screen and (min-width:801px){
  .chapter{max-width:850px;padding-top:64px}
  .chapter .beat{display:block}
  .chapter .beat>.visual{position:static;top:auto;margin-bottom:28px}
  .chapter .beat>.prose{max-width:none}
  .chapter .beat>.visual.lecture-real{margin-left:auto;margin-right:auto}
}
