:root{--paper:#f7f8f9;--ink:#171717;--body:#67696b;--line:#e9eaec;--blue:#88bad8;--green:#a3cbb5;--yellow:#e8cd8f;--pink:#dcaeba;--ease:cubic-bezier(.16,1,.3,1);font-family:'PingFang SC','Microsoft YaHei',system-ui,sans-serif;color:var(--ink);font-synthesis:none}*{box-sizing:border-box}body{margin:0;background:var(--paper)}button,a{-webkit-tap-highlight-color:transparent}button{font:inherit;color:inherit;cursor:pointer}a{color:inherit;text-decoration:none}button{border:0;background:none}button:focus-visible,a:focus-visible{outline:2px solid #397a9e;outline-offset:5px}button:disabled{opacity:.32;cursor:default}img{display:block;width:100%;height:100%;object-fit:cover}h1,h2,h3,p{margin:0}button,nav,a{touch-action:manipulation}.topbar{height:100px;display:flex;align-items:center;justify-content:space-between;gap:24px;padding:0 42px;border-bottom:1px solid var(--line);position:relative;z-index:40;background:#f7f8f9e8}.brand{display:flex;align-items:center;gap:14px;flex-shrink:0;font-size:16px;font-weight:500;letter-spacing:1px}.brand-mark{font-family:Georgia,serif;font-size:44px;line-height:1;letter-spacing:-4px;margin-right:3px}.brand small{display:block;color:#7c8186;font-size:10px;font-weight:400;letter-spacing:2.2px;margin-top:5px}.variants{display:flex;gap:4px;background:#eeeff1;padding:5px;border-radius:30px}.variants button{font-size:13px;padding:10px 17px;white-space:nowrap;border-radius:22px;color:#67696b;transition:background .2s}.variants button[aria-pressed=true]{color:#171717;background:#fff;box-shadow:0 2px 8px #17212b08}.top-actions{display:flex;align-items:center;gap:15px}.local-label{font-size:12px;color:#858a8d}.quiet{font-size:12px;color:#67696b;padding:8px 0}.icon-button{font-size:27px;line-height:1;padding:6px}.app-footer{height:57px;padding:0 42px;border-top:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;color:#81868a;font-size:11px;letter-spacing:.4px}.app-footer button{font-size:11px}.scene{height:clamp(580px,calc(100svh - 226px),860px);min-height:580px;position:relative;isolation:isolate;overflow:hidden}.scene:before{content:'';position:absolute;inset:0;background:radial-gradient(ellipse at center,#fff 10%,#f7f8f900 65%);z-index:-2;pointer-events:none}.center-copy{position:absolute;left:50%;top:50%;width:400px;text-align:center;transform:translate(-50%,-50%);z-index:22;pointer-events:none}.eyebrow{font-size:11px;color:#818a91;letter-spacing:3px;font-weight:500}.center-copy h1{font-size:52px;letter-spacing:3px;line-height:1.6;font-weight:450;margin:12px 0 7px}.center-copy .subtitle{font-size:15px;color:#6c757b;letter-spacing:1.2px;line-height:1.8}.center-copy .selected-label{margin:23px 0 10px;font-size:12px;letter-spacing:.8px;color:#5e6d77}.primary{border-radius:40px;background:#171717;color:#fff;padding:14px 24px;display:inline-flex;align-items:center;justify-content:center;gap:25px;font-size:14px;pointer-events:auto;min-height:46px;transition:background .2s,transform .2s}.primary:hover{background:#34434c;transform:translateY(-2px)}.center-copy .selected-label strong{font-weight:500}.cover-card{position:absolute;top:50%;left:50%;width:170px;height:135px;padding:0;border-radius:9px;background:#fff;box-shadow:0 15px 38px #23384715;overflow:hidden;will-change:transform;transform-origin:center;transition:box-shadow .25s;outline-offset:5px}.cover-card img{transition:filter .35s;filter:saturate(.65)}.cover-card:hover img,.cover-card:focus-visible img{filter:saturate(1)}.cover-caption{position:absolute;inset:auto 0 0;color:white;padding:27px 12px 10px;background:linear-gradient(transparent,#111a);font-size:11px;text-align:left;letter-spacing:.5px;opacity:0;transition:opacity .2s}.cover-card:hover .cover-caption,.cover-card:focus-visible .cover-caption{opacity:1}.scene-orbit .orbit-line{position:absolute;left:50%;top:50%;width:78%;height:74%;transform:translate(-50%,-50%);border:1px solid #e6eaed88;border-radius:50%;z-index:-1}.scene-orbit .orbit-line.two{width:87%;height:83%;transform:translate(-50%,-50%) rotate(-8deg);border-style:dashed;opacity:.4}.scene-tag{position:absolute;left:42px;top:28px;z-index:28;display:flex;gap:15px;align-items:center;font-size:11px;color:#83909a;letter-spacing:1px}.scene-tag .tag-number{font-size:27px;font-style:italic;font-weight:400;color:#a4b5c0;letter-spacing:-1px}.scene-note{position:absolute;bottom:22px;left:42px;right:42px;z-index:28;display:flex;justify-content:space-between;font-size:11px;color:#889299;pointer-events:none}.course-strip{display:flex;justify-content:center;align-items:center;gap:7px;min-height:69px;padding:8px 24px;border-top:1px solid var(--line);background:#ffffff80}.course-strip button{padding:12px 16px;border-radius:7px;color:#6b7277;font-size:13px;white-space:nowrap}.course-strip button:hover,.course-strip button[aria-current=true]{background:#e9eef1;color:#253b49}.course-strip span{color:#8b9ca8;font-size:11px;margin-right:9px;font-variant-numeric:tabular-nums}.scene-gallery{background:#f4f5f6}.scene-gallery .center-copy{width:360px}.scene-gallery .center-copy h1{font-size:47px}.scene-gallery .cover-card{border-radius:3px;padding:9px;background:#fff;height:200px;width:230px;box-shadow:0 20px 50px #27364513}.scene-gallery .cover-card .cover-caption{left:9px;right:9px;bottom:9px}.scene-gallery .scene-tag{color:#78838b}.gallery-rule{position:absolute;left:50%;top:0;bottom:0;width:1px;background:#e1e6e980;z-index:-1}.scene-stars{background:#f2f5f7;background-image:radial-gradient(#a9bdcc55 .8px,transparent .8px);background-size:26px 26px}.scene-stars:before{background:radial-gradient(ellipse,#f7f8f9 22%,#f7f8f930 65%)}.scene-stars .center-copy{width:330px}.scene-stars .center-copy h1{font-size:44px}.star-links{position:absolute;inset:0;width:100%;height:100%;pointer-events:none}.star-links line{stroke:#b8c9d6;stroke-width:.7;stroke-dasharray:3 7}.star-links circle{fill:none;stroke:#bfced855;stroke-width:1}.scene-stars .cover-card{width:175px;height:140px;border-radius:12px;padding:8px;background:#ffffffec;box-shadow:0 8px 30px #26394509;overflow:visible;border:1px solid #e1e8ed}.scene-stars .cover-card img{height:90px;border-radius:7px;filter:saturate(.55)}.scene-stars .cover-caption{color:#344b5b;position:static;padding:9px 0 0;opacity:1;font-size:12px;text-align:center;background:none}.scene-stars .cover-card:before{content:'';width:7px;height:7px;border-radius:50%;background:#88bad8;position:absolute;top:-4px;left:50%;box-shadow:0 0 0 6px #88bad81a}.scene-gather{background:#f6f7f8}.scene-gather .cover-card{width:165px;height:122px;border-radius:6px;box-shadow:0 12px 35px #273c5012}.scene-gather .center-copy h1{letter-spacing:7px;font-size:48px}.gather-label{position:absolute;left:50%;bottom:80px;transform:translateX(-50%);color:#8194a1;font-size:11px;letter-spacing:6px}.hero-page{max-width:1320px;margin:0 auto;padding:40px 56px 65px;min-height:calc(100svh - 157px)}.back{font-size:13px;color:#657580;display:inline-flex;align-items:center;gap:13px;padding:5px 0;margin-bottom:40px}.course-hero{display:grid;grid-template-columns:1fr 1fr;gap:65px;align-items:center}.course-hero h1{font-size:clamp(32px,3.5vw,52px);line-height:1.5;font-weight:450;letter-spacing:1px;margin:20px 0}.course-description{font-size:16px;line-height:2;color:#727a80;max-width:440px;margin-bottom:28px}.course-hero figure{margin:0;position:relative}.hero-image{height:300px;border-radius:24px;overflow:hidden;box-shadow:0 20px 55px #26394512}.course-hero figcaption{font-size:10px;color:#8a9297;text-align:right;padding-top:12px;line-height:1.6}.course-meta{display:flex;gap:20px;font-size:12px;color:#879197;margin:25px 0}.chapters{margin-top:52px;border-top:1px solid var(--line);padding-top:28px}.chapter-heading{display:flex;justify-content:space-between;align-items:baseline;margin-bottom:18px}.chapter-heading h2{font-size:23px;font-weight:450}.chapter-heading p{font-size:12px;color:#899198}.chapter-list{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.chapter-button{text-align:left;padding:22px 24px;background:white;border:1px solid var(--line);border-radius:14px;display:flex;align-items:center;gap:20px;min-height:114px;transition:transform .25s,background .25s}.chapter-button:hover{transform:translateY(-4px);background:#f0f5f8}.chapter-number{font:italic 38px 'Helvetica Neue',sans-serif;color:#9aaebc;font-weight:400;letter-spacing:-1px}.chapter-button h3{font-size:17px;font-weight:500;margin-bottom:8px}.chapter-button p{font-size:12px;color:#818a90}.chapter-button .arrow{margin-left:auto;color:#798e9c}.lesson-page{min-height:calc(100svh - 157px);display:flex;flex-direction:column;padding:25px 55px 24px;max-width:1600px;margin:auto}.lesson-top{display:flex;justify-content:space-between;align-items:center;font-size:12px;color:#84929c}.lesson-top .back{margin:0}.slide{flex:1;position:relative;margin:26px 0 23px;min-height:490px;background:#fff;border:1px solid var(--line);border-radius:24px;padding:54px 65px;display:flex;flex-direction:column;justify-content:center;overflow:hidden}.slide .eyebrow{margin-bottom:24px}.slide h1{font-size:clamp(32px,3.9vw,56px);font-weight:450;line-height:1.5;letter-spacing:1px;max-width:950px}.slide-lead{font-size:clamp(17px,1.6vw,23px);line-height:1.9;color:#69767f;margin-top:25px;max-width:800px}.slide-number{position:absolute;right:40px;top:26px;font-size:70px;font-weight:300;color:#e2e8ed;font-variant-numeric:tabular-nums;font-style:italic}.slide-bottom{display:flex;justify-content:space-between;align-items:center;gap:16px}.slide-progress{display:flex;gap:5px}.slide-progress button{width:25px;height:20px;padding:8px 0;background:transparent}.slide-progress button:before{content:'';display:block;height:4px;border-radius:3px;background:#e0e6ea}.slide-progress button[aria-current=true]:before{background:#7daecb}.slide-controls{display:flex;align-items:center;gap:15px;font-size:12px;color:#78848c}.slide-controls>button{border:1px solid #dce2e6;border-radius:50%;width:40px;height:40px;background:white;font-size:19px}.slide-visual{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-top:35px}.idea{padding-top:18px;border-top:3px solid var(--tint,var(--blue))}.idea h3{font-size:23px;font-weight:500;line-height:1.5;margin-bottom:13px}.idea p{font-size:16px;color:#71808a;line-height:1.9}.discussion{margin-top:34px;border-radius:16px;padding:24px 28px;background:#f0f5f8;font-size:19px;line-height:1.8;color:#456275}.notes{margin-top:18px;border-top:1px solid var(--line);padding:16px 0;color:#667983;font-size:14px;line-height:1.9}.notes[hidden]{display:none}.view-enter{animation:view-in .65s var(--ease) both}.flying-cover{position:fixed;margin:0;object-fit:cover;border-radius:12px;z-index:100;pointer-events:none;box-shadow:0 20px 70px #1a304233}.transition-veil{position:fixed;inset:0;background:#f7f8f9;z-index:90;pointer-events:none}.transition-shard{position:fixed;z-index:101;pointer-events:none;border-radius:4px;object-fit:cover}.paused *{animation-play-state:paused!important}.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip-path:inset(50%);white-space:nowrap}dialog{border:1px solid var(--line);border-radius:24px;padding:40px;max-width:600px;width:calc(100% - 36px);color:var(--ink);box-shadow:0 25px 100px #17212b24}dialog::backdrop{background:#17212b55;backdrop-filter:blur(8px)}dialog h2{font-size:28px;font-weight:450;margin:18px 0}dialog p,dialog li{font-size:14px;line-height:1.9;color:#6f7e88}dialog ul{padding-left:20px}dialog a{display:inline-block;margin-top:15px;color:#397a9e;font-size:14px}.close{position:absolute;right:18px;top:12px;font-size:30px;color:#8798a2}.reduce-notice{font-size:12px;color:#768a98}@keyframes view-in{from{opacity:0;transform:translateY(15px)}to{opacity:1;transform:translateY(0)}}
@media(min-width:1650px){.scene{min-height:700px}.cover-card{width:195px;height:150px}.center-copy h1{font-size:59px}}
@media(max-width:1100px){.topbar{padding:0 24px;gap:18px}.local-label{display:none}.variants button{padding:9px 12px}.brand{font-size:14px}.brand-mark{font-size:37px}.top-actions{gap:12px}.scene{height:620px}.course-strip{gap:0}.course-strip button{padding:12px 10px;font-size:12px}.course-hero{gap:35px}.hero-page{padding:32px}.chapter-button{padding:20px 16px;gap:12px}.slide{padding:45px}.scene-gallery .cover-card{width:185px;height:160px}}
@media(max-width:760px){.topbar{height:auto;min-height:130px;flex-wrap:wrap;padding:19px 20px 13px;gap:16px}.brand{font-size:14px}.brand-mark{font-size:34px}.brand small{font-size:9px}.variants{order:3;width:100%;justify-content:center;gap:0}.variants button{flex:1;padding:9px 4px;font-size:12px}.top-actions{margin-left:auto}.top-actions .quiet{font-size:11px}.scene{height:630px;min-height:630px}.center-copy{width:280px;top:47%}.center-copy h1{font-size:37px;letter-spacing:2px}.center-copy .subtitle{font-size:13px}.center-copy .selected-label{font-size:11px;margin-top:20px}.primary{font-size:13px;padding:12px 21px}.cover-card{width:105px;height:82px;border-radius:5px}.cover-caption{font-size:9px}.scene-tag{left:20px;top:15px;font-size:10px}.scene-tag .tag-number{font-size:21px}.scene-note{left:20px;right:20px;bottom:13px;font-size:10px}.scene-note span:last-child{display:none}.course-strip{justify-content:flex-start;overflow-x:auto;padding:8px 13px;min-height:62px}.course-strip button{flex-shrink:0;padding:10px;font-size:12px}.course-strip span{margin-right:5px}.app-footer{height:56px;padding:0 20px;font-size:10px}.app-footer>span:last-child{display:none}.scene-gallery .center-copy,.scene-stars .center-copy{width:280px}.scene-gallery .center-copy h1,.scene-stars .center-copy h1,.scene-gather .center-copy h1{font-size:36px;letter-spacing:2px}.scene-gallery .cover-card{width:133px;height:112px;padding:5px}.scene-stars .cover-card{width:110px;height:105px;padding:5px}.scene-stars .cover-card img{height:67px}.scene-stars .cover-caption{font-size:10px;padding-top:8px}.scene-gather .cover-card{width:107px;height:86px}.gather-label{bottom:72px;font-size:9px;letter-spacing:3px;white-space:nowrap}.hero-page{padding:24px 22px 35px}.back{margin-bottom:24px}.course-hero{grid-template-columns:1fr;gap:30px}.course-hero h1{font-size:33px;margin:14px 0}.course-description{font-size:15px;margin-bottom:20px}.hero-image{height:220px;border-radius:18px}.course-hero figcaption{font-size:9px}.course-meta{margin:15px 0}.chapters{margin-top:30px}.chapter-heading h2{font-size:21px}.chapter-heading p{font-size:11px}.chapter-list{grid-template-columns:1fr;gap:10px}.chapter-button{min-height:90px;padding:16px 20px}.chapter-number{font-size:32px}.lesson-page{padding:19px 18px;min-height:calc(100svh - 186px)}.lesson-top{font-size:10px;gap:10px}.lesson-top .back{font-size:11px}.slide{margin:20px 0;padding:35px 24px;min-height:470px;border-radius:16px}.slide-number{font-size:45px;right:20px;top:20px}.slide .eyebrow{font-size:9px;letter-spacing:2px;max-width:80%;margin-bottom:20px}.slide h1{font-size:29px}.slide-lead{font-size:16px;margin-top:20px}.slide-visual{grid-template-columns:1fr;gap:18px;margin-top:24px}.idea h3{font-size:18px;margin-bottom:7px}.idea p{font-size:14px}.idea{padding-top:12px}.discussion{font-size:16px;padding:18px;margin-top:24px}.slide-controls{gap:10px}.slide-progress{gap:3px}.slide-progress button{width:17px}.slide-bottom{flex-wrap:wrap}.keyboard-hint{display:none}.notes{font-size:13px}.course-hero .eyebrow{font-size:10px;letter-spacing:2px}}
@media(prefers-reduced-motion:reduce){*,*:before,*:after{animation-duration:.01ms!important;transition-duration:.01ms!important;scroll-behavior:auto!important}}
@media print{.topbar,.app-footer,.slide-bottom,.lesson-top,.notes{display:none!important}.slide{border:0;margin:0;padding:20px;min-height:auto}.lesson-page{padding:0}.course-strip{display:none}}
/* Second comparison: three independent compositions; orbit remains unchanged. */
.theatre:before,.constellation:before,.thought-scroll:before{display:none}.theatre{background:#f4f5f6;height:calc(100svh - 157px);min-height:650px;padding:30px 5.5vw 40px}.theatre-label{display:flex;justify-content:space-between;color:#8a9297;font-size:11px;letter-spacing:2px;border-bottom:1px solid #dfe4e7;padding-bottom:23px}.theatre-label span{letter-spacing:1px}.theatre-stage{display:grid;grid-template-columns:1.45fr 1fr;gap:8vw;align-items:center;height:calc(100% - 40px)}.type-composition{position:relative;isolation:isolate;padding:50px 0}.type-echo{position:absolute;top:2%;left:-8%;font-size:clamp(100px,15vw,260px);line-height:.84;letter-spacing:-.065em;font-weight:650;color:#e7ebee;z-index:-1;white-space:nowrap;animation:type-drift 24s ease-in-out infinite alternate;user-select:none;pointer-events:none}.type-composition>.eyebrow{color:#748d9c;letter-spacing:2px}.type-heading{display:flex;align-items:baseline;gap:14px;margin-top:45px}.type-index{align-self:flex-start;font-size:23px;font-style:italic;color:#87a0b0;margin-top:12px}.type-heading h1{font-weight:450;font-size:clamp(45px,5.6vw,91px);letter-spacing:-2px;line-height:1.3;max-width:5em;word-break:keep-all}.type-period{font-family:Georgia,serif;color:#88bad8;font-size:90px;line-height:1}.type-composition #type-line{font-size:17px;line-height:1.9;color:#75818a;margin:30px 0 32px}.type-signature{display:flex;gap:25px;font-size:12px;color:#566d7b;margin-top:75px;align-items:center}.type-signature span{color:#94a0a8;font-size:11px}.type-program{z-index:2;background:#f4f5f6cc}.type-program>p{color:#879299;font-size:12px;margin-bottom:22px}.type-program>button{width:100%;display:flex;align-items:center;text-align:left;gap:25px;padding:22px 0;border-top:1px solid #dce3e7;color:#7f8d96;transition:color .3s,padding .4s var(--ease)}.type-program button small{font-size:12px;letter-spacing:1px}.type-program button span{font-size:clamp(18px,1.8vw,28px);font-weight:400}.type-program button b{margin-left:auto;font-size:24px;font-weight:400;opacity:0;transform:translate(-8px,8px);transition:all .3s}.type-program button[aria-pressed=true]{padding-left:14px;color:#171717}.type-program button[aria-pressed=true] b{opacity:1;transform:none}.program-foot{display:block;color:#9aa5ac;font-size:9px;letter-spacing:3px;margin-top:25px}@keyframes type-drift{from{transform:translateX(-12px)}to{transform:translateX(24px)}}
.constellation{background:#181b1f;color:#eef2f4;height:calc(100svh - 226px);min-height:650px;display:grid;grid-template-columns:29% 71%;padding:0 4.5vw;overflow:hidden}.constellation-intro{padding-top:65px;position:relative;z-index:2;pointer-events:none}.constellation .eyebrow{color:#99afbf;letter-spacing:2px;font-size:10px}.constellation-intro h1{font-weight:400;font-size:clamp(28px,3vw,46px);line-height:1.6;margin:22px 0;white-space:nowrap}.constellation-intro>p:not(.eyebrow){font-size:14px;color:#8699a6;line-height:2}.sky-coordinate{display:block;margin-top:47px;font-size:11px;color:#5f7d91;letter-spacing:4px}.sky-map{height:calc(100% - 152px);min-height:410px;position:relative;margin-left:-45px}.sky-map>svg{width:100%;height:100%;overflow:visible}.stardust{fill:#bdd6e6}.sky-edges line{stroke:#556d7e;stroke-width:.8;stroke-dasharray:3 8;animation:sky-flow 30s linear infinite;animation-delay:var(--delay)}.star-node{position:absolute;transform:translate(-50%,-50%);width:132px;min-height:80px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:9px;color:#aabdc9;padding:16px 4px;font-size:13px}.node-dot{width:6px;height:6px;border-radius:50%;background:#a3bbce;position:absolute;top:6px}.node-dot:before{content:'';position:absolute;inset:-12px;border:1px solid #8faabd44;border-radius:50%;animation:sky-pulse 6s infinite ease-in-out;animation-delay:var(--delay)}.node-index{font-size:9px;color:#60849c;letter-spacing:2px}.node-name{white-space:nowrap}.star-node[aria-pressed=true]{color:white}.star-node[aria-pressed=true] .node-dot{background:#fff;box-shadow:0 0 22px 7px #88bad853}.star-node[aria-pressed=true] .node-dot:before{border-color:#a3cbb580;inset:-19px}.star-node:hover .node-name{color:white}.map-caption{position:absolute;bottom:0;right:4%;font-size:10px;color:#667c8b;letter-spacing:3px}.star-detail{position:absolute;bottom:28px;left:4.5vw;right:4.5vw;display:flex;align-items:center;gap:32px;border-top:1px solid #35434d;padding-top:25px}.star-detail>span{font-family:'Helvetica Neue',Arial,sans-serif;font-size:60px;font-style:italic;font-weight:300;color:#7695aa;letter-spacing:-3px}.star-detail>div{flex:1}.star-detail h2{font-size:23px;font-weight:400;margin:7px 0}.star-detail #sky-description{font-size:12px;color:#8197a6;line-height:1.9;max-width:640px}.star-detail>button{padding:15px 24px;border:1px solid #52697a;border-radius:30px;font-size:13px;color:#dce8ef;white-space:nowrap}.star-detail>button:hover{background:#293b48}.background-paused *{animation-play-state:paused!important}@keyframes sky-flow{to{stroke-dashoffset:-110}}@keyframes sky-pulse{0%,100%{transform:scale(.8);opacity:.4}50%{transform:scale(1.2);opacity:1}}
.thought-scroll{height:calc(100svh - 157px);min-height:690px;padding:35px 0 0;background:#f1f3f4;display:flex;flex-direction:column}.scroll-heading{padding:0 42px 26px;display:flex;justify-content:space-between;align-items:flex-end;gap:20px}.scroll-heading h1{font-size:33px;line-height:1.5;font-weight:400;margin-top:13px}.scroll-heading>p{font-size:12px;color:#8a979f;padding-bottom:7px}.scroll-window{overflow-x:auto;overflow-y:hidden;flex:1;min-height:445px;scroll-snap-type:x mandatory;scrollbar-color:#afbec8 #e2e7ea;scrollbar-width:thin;padding:0 0 15px;overscroll-behavior-x:contain}.scroll-track{display:flex;gap:24px;height:100%;padding:0 42px;width:max-content}.scroll-panel{width:clamp(340px,38vw,570px);height:100%;min-height:430px;display:flex;flex-direction:column;scroll-snap-align:center;background:#fff;padding:24px 32px 0;position:relative}.scroll-panel>header{display:flex;align-items:center;gap:15px;border-bottom:1px solid #17212b1a;padding-bottom:18px;flex-shrink:0}.scroll-panel>header>span{font-size:12px;color:#70828e}.scroll-panel>header h2{font-size:16px;font-weight:500}.scroll-panel>header small{margin-left:auto;font-size:8px;letter-spacing:2px;color:#82909a}.poster-content{position:relative;flex:1;display:flex;align-items:center}.scroll-panel>button{padding:18px 0;text-align:left;border-top:1px solid #17212b1a;font-size:12px;display:flex;justify-content:space-between;flex-shrink:0}.scroll-panel>button span{font-size:17px}.scroll-panel>button:hover{color:#397a9e}.poster-0{background:#e5edf2}.scroll-quote{font-size:clamp(36px,4vw,63px);line-height:1.6;letter-spacing:-1px;font-weight:400;padding:22px 0}.scroll-quote em{font-style:normal;color:#7097af}.poster-foot{position:absolute;bottom:15px;right:0;font-size:8px;letter-spacing:2px;color:#91a6b4;writing-mode:vertical-rl}.poster-1{background:#f7faf8}.balance-diagram{display:grid;grid-template-columns:1fr 1fr;align-items:center;width:100%;text-align:center;padding:35px 0;position:relative}.balance-diagram>span{font-size:32px;padding:30px 0}.balance-diagram>span:first-child{background:#d8e9e0}.balance-diagram>span:nth-of-type(2){background:#ece7e4}.balance-diagram .balance-rule{position:absolute;top:50%;left:50%;width:1px;height:50px;background:#acbdb3}.balance-line{height:1px;grid-column:span 2;background:#acbdb3;margin:30px 0 25px}.balance-diagram>strong{font-size:48px;grid-column:span 2;font-weight:400;letter-spacing:12px}.balance-diagram>small{font-size:11px;color:#8a9b94;grid-column:span 2;margin-top:20px}.poster-2{background:#181b1f;color:#f0f4f6}.poster-2>header,.poster-2>button{border-color:#ffffff24}.world-poster{width:100%;height:100%;position:relative;display:flex;align-items:center}.world-poster img{width:64%;height:auto;aspect-ratio:1;object-fit:contain;margin-left:auto;opacity:.8;mix-blend-mode:screen}.world-poster span{position:absolute;left:0;font-size:clamp(30px,3vw,48px);line-height:1.5;font-weight:400}.question-poster{width:100%;height:100%;display:flex;align-items:center;justify-content:center;position:relative}.question-poster>span{font-family:Georgia,serif;font-size:320px;line-height:1;color:#e8edf1;transform:rotate(12deg);user-select:none}.question-poster p{position:absolute;left:0;bottom:40px;font-size:29px;line-height:1.6}.poster-4{background:#dfe9f0}.technology-poster{width:100%;padding:20px 0;position:relative}.technology-poster>span{font-size:37px;line-height:1.5;display:block;margin-bottom:15px}.technology-poster img{height:100px;filter:grayscale(1);object-fit:cover}.technology-poster small{font-size:8px;letter-spacing:3px;display:block;color:#7b94a5;margin-top:12px}.poster-5{background:#e9eee9}.life-poster{position:relative;height:100%;width:100%;padding:20px 0;min-height:270px}.life-poster img{height:100%;object-fit:cover;opacity:.62}.life-poster p{position:absolute;top:35px;left:20px;font-size:40px;line-height:1.5;color:#202e28}.scroll-end{width:230px;display:flex;justify-content:center;flex-direction:column;padding:35px}.scroll-end>span{font-size:50px;line-height:1.5;color:#899dab}.scroll-end p{font-size:11px;margin-top:25px;color:#8d9da7;line-height:2}.scroll-controls{display:flex;align-items:center;gap:35px;padding:18px 42px;font-size:11px;color:#7c8e9a}.scroll-controls>div:last-child{display:flex;align-items:center;gap:20px}.scroll-controls button{width:35px;height:35px;border:1px solid #ccd6dc;border-radius:50%;font-size:17px}.scroll-meter{height:2px;flex:1;background:#dbe2e7}.scroll-meter i{display:block;background:#86a7bc;height:2px;width:12%}
@media(max-width:1000px){.theatre-stage{gap:5vw}.type-heading h1{font-size:50px}.type-index{font-size:18px}.type-period{font-size:70px}.type-program>button{gap:15px;padding:20px 0}.type-signature{flex-direction:column;align-items:flex-start;gap:12px}.constellation{grid-template-columns:25% 75%}.constellation-intro h1{font-size:28px;white-space:normal;max-width:4em}.sky-map{margin-left:0}.constellation-intro>p:not(.eyebrow){font-size:12px}.star-detail{gap:20px}}
@media(max-width:760px){.theatre{height:auto;min-height:760px;padding:25px 24px 30px}.theatre-label{font-size:9px;letter-spacing:1px}.theatre-label span{display:none}.theatre-stage{grid-template-columns:1fr;gap:20px;height:auto}.type-composition{padding:40px 0 12px}.type-echo{font-size:120px;top:50px;left:-10px;color:#e6ebee}.type-composition>.eyebrow{font-size:8px;letter-spacing:1.5px}.type-heading{margin-top:35px;gap:10px}.type-heading h1{font-size:45px;max-width:none;letter-spacing:-1px}.type-index{font-size:15px;margin-top:9px}.type-period{font-size:60px}.type-composition #type-line{font-size:14px;line-height:1.9;margin:22px 0}.type-signature{margin-top:28px;flex-direction:row;gap:15px;font-size:10px}.type-signature span{font-size:9px}.type-program{margin-top:18px}.type-program>p{font-size:10px;margin-bottom:15px}.type-program>button{padding:16px 0;gap:23px}.type-program button span{font-size:20px}.program-foot{font-size:8px;margin-top:20px}.constellation{height:770px;min-height:770px;padding:30px 22px;display:flex;flex-direction:column}.constellation-intro{padding:0}.constellation-intro h1{font-size:32px;max-width:none;margin:15px 0 10px}.constellation-intro>p:not(.eyebrow){font-size:12px;line-height:1.8}.constellation-intro br{display:none}.sky-coordinate{margin-top:16px;font-size:9px}.sky-map{height:360px;min-height:360px;flex:none;margin:3px -13px 0}.star-node{width:104px;font-size:11px}.node-name{font-size:11px}.map-caption{font-size:8px;letter-spacing:1px}.star-detail{left:22px;right:22px;bottom:26px;gap:18px;flex-wrap:wrap;padding-top:20px}.star-detail>span{font-size:47px;align-self:flex-start;margin-top:10px}.star-detail>div{flex:1;min-width:180px}.star-detail h2{font-size:22px}.star-detail #sky-description{font-size:12px;line-height:1.8}.star-detail>button{margin-left:auto;font-size:12px;padding:10px 20px}.thought-scroll{height:calc(100svh - 186px);min-height:620px;padding-top:25px}.scroll-heading{padding:0 22px 22px;display:block}.scroll-heading .eyebrow{font-size:9px;letter-spacing:2px}.scroll-heading h1{font-size:27px;margin-top:10px}.scroll-heading>p{font-size:10px;margin-top:12px}.scroll-window{min-height:365px}.scroll-track{padding:0 22px;gap:16px}.scroll-panel{width:calc(100vw - 65px);min-height:365px;padding:20px 23px 0}.scroll-panel>header{gap:10px;padding-bottom:15px}.scroll-panel>header h2{font-size:14px}.scroll-panel>header small{font-size:6px;letter-spacing:1px}.scroll-quote{font-size:37px;line-height:1.55}.balance-diagram{padding:20px 0}.balance-diagram>span{font-size:25px;padding:15px 0}.balance-diagram>strong{font-size:35px}.balance-diagram>small{font-size:9px;margin-top:14px}.balance-line{margin:22px 0 15px}.world-poster span{font-size:29px}.question-poster>span{font-size:260px}.question-poster p{font-size:25px;bottom:25px}.technology-poster>span{font-size:29px}.technology-poster img{height:85px}.life-poster p{font-size:30px;left:14px;top:26px}.life-poster{min-height:240px}.scroll-controls{padding:14px 22px;gap:15px}.scroll-controls>span{display:none}.scroll-controls>div:last-child{gap:14px}.scroll-end{width:180px;padding:25px}.scroll-end>span{font-size:42px}}

/* Fixed title for the class being taught today; browsing cover art cannot change it. */
.scene-orbit .center-copy{width:min(450px,calc(100% - 44px))}
.scene-orbit .center-copy h1{font-size:48px;line-height:1.4;margin:10px 0 14px}
.today-label{font-size:11px;letter-spacing:3px;color:#6a8495;margin:0 0 9px}
.today-title{max-width:390px;margin:0 auto;font-size:25px;line-height:1.65;font-weight:500;letter-spacing:.3px;text-wrap:balance}
.today-author{font-size:10px;color:#818a91;letter-spacing:1.6px;margin:14px 0 19px}
.today-cover{box-shadow:0 15px 38px #23384715,0 0 0 2px #88bad880}
@media(max-width:760px){.scene-orbit .center-copy h1{font-size:38px}.today-title{font-size:20px;max-width:310px}.today-label{font-size:10px}.scene-orbit .center-copy{background:radial-gradient(ellipse,#f7f8f9 40%,#f7f8f9dd 62%,#f7f8f900 74%);padding:15px 0}.today-author{margin:12px 0 15px}}

.today-title span{display:block}