:root{color-scheme:dark;--ink:#e6e5dc;--muted:#859395;--faint:#536368;--accent:#bcc9c6;--bg:#05080b;--line:rgba(213,224,224,.16);--serif:"Baskerville","Iowan Old Style","Palatino Linotype","Times New Roman",serif;--jp-serif:"Yu Mincho","Hiragino Mincho ProN","Noto Serif CJK JP",serif;--sans:"Inter","Helvetica Neue",Arial,"Hiragino Kaku Gothic ProN","Yu Gothic",sans-serif;--gutter:clamp(24px,4.3vw,84px);--footer-h:151px}
*{box-sizing:border-box}html,body{margin:0;width:100%;height:100%;overflow:hidden;background:var(--bg);color:var(--ink)}body{font-family:var(--sans);font-weight:400;-webkit-font-smoothing:antialiased}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,a{touch-action:manipulation}button:focus-visible,a:focus-visible,[tabindex]:focus-visible{outline:1px solid 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var(--line)}.exhibit-facts>div{min-width:0}.exhibit-facts dt{font-size:8px;letter-spacing:.04em;color:#6f8780;margin:0 0 10px}.exhibit-facts dd{font-size:11px;letter-spacing:.035em;color:#bfcdc4;margin:0}.observation{position:relative;padding-left:15px;border-left:1px solid #7d948b55}.observation-heading{font-size:8px;letter-spacing:.13em;color:var(--accent);margin:0 0 10px;display:flex;align-items:center;gap:7px}.observation-symbol{font-size:13px}.observation>p:last-child{font-size:10px;line-height:2;letter-spacing:.03em;color:#839990;margin:0}.exhibit-note{font-size:8px;letter-spacing:.07em;color:#4f7064;margin:16px 0 0}.exhibit.is-right{left:auto;right:var(--gutter);width:clamp(300px,29vw,455px)}.is-detail #museum:before{content:"";pointer-events:none;position:absolute;inset:0;z-index:1;background:linear-gradient(90deg,rgba(3,8,10,.86) 0%,rgba(3,8,10,.76) 17%,rgba(3,8,10,.33) 34%,transparent 49%);opacity:0;transition:opacity 1s}.is-detail.detail-left #museum:before{opacity:1}.is-detail.detail-right #museum:before{opacity:1;background:linear-gradient(270deg,rgba(3,8,10,.89) 0%,rgba(3,8,10,.8) 17%,rgba(3,8,10,.4) 34%,transparent 49%)}.scene-index{position:absolute;right:var(--gutter);top:133px;font-family:var(--serif);font-size:40px;letter-spacing:.03em;color:#c1ccc1;z-index:6}.scene-index span:last-child{font-family:var(--sans);font-size:9px;letter-spacing:.06em;color:#56776a;margin-left:10px}.detail-right .scene-index{left:var(--gutter);right:auto;top:auto;bottom:calc(var(--footer-h) + 60px)}.scene-caption{position:absolute;right:var(--gutter);bottom:calc(var(--footer-h) + 35px);font-family:var(--serif);font-size:10px;letter-spacing:.19em;color:#778e85;z-index:6}.detail-right .scene-caption{right:auto;left:var(--gutter)}.exhibit-arrows{position:absolute;right:var(--gutter);bottom:calc(var(--footer-h) + 72px);display:flex;z-index:8;gap:9px}.exhibit-arrows button{border:1px solid #a7bcb326;width:40px;height:40px;border-radius:50%;font-size:15px;color:#9db0a7;transition:.3s}.exhibit-arrows button:hover{background:#cad9c211;border-color:#a6b9a6;color:white}.detail-right .exhibit-arrows{right:auto;left:var(--gutter);bottom:calc(var(--footer-h) + 125px)}.loading-screen{position:absolute;inset:0;z-index:70;background:#04080b;display:flex;flex-direction:column;align-items:center;justify-content:center;transition:opacity 1.1s,visibility 1.1s}.loading-screen>p{font-family:var(--serif);font-size:30px;letter-spacing:.3em;margin:28px 0 15px}.loading-screen>span{font-size:10px;letter-spacing:.17em;color:#7d918a}.loading-orbit{position:relative;border:1px solid #75968a55;width:44px;height:44px;border-radius:50%}.loading-orbit:before,.loading-orbit:after{position:absolute;content:"";inset:-12px;border:1px solid #75968a33;border-radius:50%;transform:rotate(-35deg) scaleY(.42)}.loading-orbit:after{inset:-20px;transform:rotate(40deg) scaleY(.28);border-color:#75968a22}.loading-orbit span{width:4px;height:4px;position:absolute;left:4px;top:4px;background:#b8cbbb;border-radius:50%;box-shadow:0 0 12px #b8cbbb;animation:loading-pulse 2s infinite}.loading-track{margin-top:25px;height:1px;width:100px;background:#11201c}.loading-track i{display:block;height:100%;background:#8da694;width:7%;transition:width .5s}body:not(.is-loading) .loading-screen{opacity:0;visibility:hidden;pointer-events:none}.toast{position:absolute;left:50%;bottom:calc(var(--footer-h) + 25px);transform:translateX(-50%);background:#10201eea;border:1px solid #647f7055;color:#c4d1c5;font-size:11px;line-height:1.8;max-width:90vw;width:max-content;padding:12px 20px;z-index:60;box-shadow:0 6px 25px #0005}.about-dialog{color:var(--ink);width:min(580px,calc(100vw - 40px));max-height:85svh;border:1px solid #78958c44;background:#0b1417;padding:54px;box-shadow:0 25px 160px #0008;scrollbar-width:thin;scrollbar-color:#52645c transparent}.about-dialog::backdrop{background:#020609c9;backdrop-filter:blur(9px)}.dialog-close{position:absolute;top:16px;right:20px;font-size:28px;font-weight:200;color:#9cae9f;width:38px;height:38px}.about-dialog h2{font-family:var(--jp-serif);font-weight:400;font-size:33px;line-height:1.65;letter-spacing:.12em;margin:0 0 25px}.about-dialog>p:not(.eyebrow){font-size:12px;line-height:2.2;letter-spacing:.025em;color:#a0b4a7}.about-signature{margin:25px 0!important;font-family:var(--jp-serif)}.about-signature span{font-family:var(--sans);font-size:10px;color:#768d7d}.about-instructions{border-top:1px solid #70867933;padding-top:20px}.about-instructions h3{font-size:11px;letter-spacing:.1em;color:#c6d3c6}.about-instructions p,.fiction-note{font-size:10px!important;line-height:2!important;color:#708b79!important}.fiction-note{padding-top:16px;border-top:1px solid #70867922}.noscript{position:absolute;inset:35% 10%;z-index:100;text-align:center;background:#0b1717;padding:40px;font-size:14px;line-height:2}.is-loading .overview-copy,.is-loading .collection-footer,.is-loading .masthead{opacity:0}.masthead,.collection-footer{transition:opacity 1.8s}.is-paused .render-status i{background:#7a837c;box-shadow:none}
@keyframes loading-pulse{50%{opacity:.25;box-shadow:0 0 2px #b8cbbb}}
@media(min-width:1500px) and (min-height:900px){:root{--footer-h:168px}.collection{height:99px}.exhibit{top:220px;bottom:calc(var(--footer-h) + 44px)}.exhibit-description{font-size:12px;line-height:2.45;margin-bottom:30px}.observation>p:last-child{font-size:11px;line-height:2.15}.exhibit-japanese{margin-bottom:36px}.exhibit-facts{padding:19px 0 20px;margin-bottom:25px}.exhibit-title{margin-bottom:26px}.collection-item{gap:23px}.planet-thumb{width:32px;height:32px}.thumb-orison{width:28px;height:28px}.nav-name{font-size:21px}}
@media(max-height:820px) and (min-width:761px){:root{--footer-h:132px}.masthead{height:82px}.overview-copy{top:125px}.overview-copy h1{font-size:37px}.overview-description{margin-top:10px}.overview-subtitle{margin:17px 0}.collection{height:73px}.collection-meta{height:32px}.bottom-line{height:27px}.exhibit{top:155px;bottom:calc(var(--footer-h) + 15px)}.back-button{top:95px}.scene-index{top:105px}.exhibit h2{font-size:62px}.exhibit-japanese{margin:9px 0 17px}.exhibit-title{font-size:26px;line-height:1.6;margin-bottom:14px}.exhibit-description{font-size:10px;line-height:2.1;margin-bottom:16px}.exhibit-facts{padding:12px 0;margin-bottom:16px}.observation>p:last-child{font-size:9px}.exhibit-note{margin-top:11px}.exhibit-eyebrow{margin-bottom:10px}}
@media(max-width:1100px) and (min-width:761px){.masthead-center{display:none}.collection-item{gap:10px;padding:10px 13px}.nav-name{font-size:15px}.nav-type{font-size:8px}.planet-thumb{width:22px;height:22px}.nav-arrow{display:none}.exhibit,.exhibit.is-right{width:32vw;min-width:270px}.exhibit h2{font-size:62px}.overview-copy h1{font-size:34px}.exhibit-facts{gap:7px}.exhibit-facts dd{font-size:10px}.scene-caption{font-size:8px}}
@media(max-width:760px){:root{--gutter:24px;--footer-h:132px}.masthead{height:85px;padding-top:env(safe-area-inset-top,0px)}.wordmark{font-size:22px;gap:11px}.wordmark small{font-size:7px;letter-spacing:.2em;margin-top:6px}.brand-mark{width:30px;height:30px}.masthead-center{display:none}.about-button{font-size:9px}.about-button span{margin-left:9px}.overview-copy{top:118px;left:var(--gutter)}.eyebrow{font-size:7px;letter-spacing:.18em;margin-bottom:18px;gap:9px}.hairline{width:20px}.overview-copy h1{font-size:30px;line-height:1.65;letter-spacing:.11em}.overview-subtitle{font-size:9px;margin:17px 0 0;letter-spacing:.2em}.overview-description{display:none}.overview-note{bottom:calc(var(--footer-h) + 21px);gap:10px}.overview-note p{font-size:10px}.overview-note small{font-size:6px;letter-spacing:.15em;margin-top:3px}.note-line{height:29px}.edge-caption{right:10px;top:39%;font-size:6px;letter-spacing:.17em}.collection-footer{left:20px;right:20px;height:calc(var(--footer-h) + env(safe-area-inset-bottom,0px));padding-bottom:env(safe-area-inset-bottom,0px)}.collection-meta{height:33px;font-size:7px;letter-spacing:.055em}.meta-divider{margin:0 5px}.view-controls{gap:14px}.render-status{display:none}.control-button{font-size:8px;gap:5px;min-height:33px}.pause-button{gap:7px}.collection{height:77px;display:flex;overflow-x:auto;overflow-y:hidden;scroll-snap-type:x proximity;scrollbar-width:none;overscroll-behavior-x:contain;mask-image:linear-gradient(90deg,#000 92%,transparent);padding-right:10px}.collection::-webkit-scrollbar{display:none}.collection-item{flex:0 0 137px;padding:10px 14px;gap:10px;scroll-snap-align:start}.collection-item:first-child{padding-left:3px;flex-basis:126px}.collection-item:last-child{padding-right:15px;flex-basis:142px}.nav-name{font-size:15px;letter-spacing:.055em}.nav-id{display:none}.nav-type{font-size:8px;letter-spacing:.035em;margin-top:8px}.planet-thumb{width:23px;height:23px}.thumb-orison{width:22px;height:22px;margin:0 4px}.nav-arrow{display:none}.bottom-line{height:22px;border-top:1px solid #adc9ba0b;font-size:6px;letter-spacing:.07em}.bottom-line>span:last-child{font-size:6px;letter-spacing:0;max-width:126px;text-align:right}.bottom-dot{margin:0 3px}.hotspot{padding:14px 9px;gap:6px}.hotspot span{font-size:8px}.hotspot small{font-size:6px}.hotspot:before{width:3px;height:3px}.hotspot:after{display:none}.back-button{top:95px;font-size:9px;gap:10px;padding:8px 0}.back-button span{font-size:20px}.exhibit,.exhibit.is-right{left:var(--gutter);right:var(--gutter);width:auto;min-width:0;top:49%;bottom:calc(var(--footer-h) + 14px + env(safe-area-inset-bottom,0px));transform:translateY(16px)}.exhibit.visible{transform:none}.exhibit-scroll{padding-right:0;padding-bottom:25px;mask-image:linear-gradient(180deg,#000 calc(100% - 15px),transparent 100%)}.exhibit-eyebrow{margin-bottom:8px;font-size:7px}.exhibit h2{font-size:54px;line-height:1;letter-spacing:-.03em;display:inline-block}.exhibit-japanese{display:inline-block;margin:0 0 0 16px;font-size:9px;letter-spacing:.08em;vertical-align:baseline}.exhibit-title{font-size:22px;line-height:1.65;letter-spacing:.1em;white-space:normal;margin:17px 0 15px}.exhibit-title br{display:none}.exhibit-description{font-size:11px;line-height:2.15;max-width:none;margin-bottom:21px}.exhibit-facts{margin-bottom:20px;padding:14px 0}.exhibit-facts dt{font-size:8px;margin-bottom:8px}.exhibit-facts dd{font-size:11px}.observation>p:last-child{font-size:10px;line-height:2.15}.exhibit-note{font-size:8px}.is-detail #museum:before,.is-detail.detail-right #museum:before,.is-detail.detail-left #museum:before{background:linear-gradient(180deg,transparent 0%,transparent 27%,rgba(4,9,12,.04) 34%,rgba(4,9,12,.76) 47%,#050a0f 62%,#050a0f 100%);z-index:1;opacity:1}.scene-index,.detail-right .scene-index{top:100px;right:var(--gutter);left:auto;bottom:auto;font-size:25px}.scene-index span:last-child{font-size:8px;margin-left:6px}.scene-caption{display:none!important}.exhibit-arrows,.detail-right .exhibit-arrows{right:var(--gutter);left:auto;top:calc(49% - 48px);bottom:auto;gap:7px}.exhibit-arrows button{width:32px;height:32px;font-size:13px;background:#07121755}.is-detail .edge-caption{opacity:.5}.about-dialog{padding:43px 27px 27px}.about-dialog h2{font-size:29px}.about-dialog .eyebrow{font-size:7px}.toast{bottom:calc(var(--footer-h) + 10px);font-size:10px;padding:10px 14px;max-width:88vw}.space-shade{background:linear-gradient(180deg,#03070b55 0%,transparent 15%,transparent 60%,#05090d66 78%,#05090d 100%)}.is-overview .space-shade:after{background:linear-gradient(110deg,#02050960,transparent 70%);opacity:.5}}
@media(max-width:760px) and (max-height:740px){:root{--footer-h:119px}.masthead{height:74px}.overview-copy{top:101px}.overview-copy h1{font-size:25px}.overview-subtitle{margin-top:12px;font-size:8px}.collection{height:65px}.exhibit,.exhibit.is-right{top:48%;bottom:calc(var(--footer-h) + 8px + env(safe-area-inset-bottom,0px))}.exhibit-arrows,.detail-right .exhibit-arrows{top:calc(48% - 43px)}.back-button{top:80px}.scene-index,.detail-right .scene-index{top:88px}.exhibit h2{font-size:43px}.exhibit-japanese{font-size:8px}.exhibit-title{font-size:20px;margin:12px 0}.exhibit-description{font-size:10px}.overview-note{bottom:calc(var(--footer-h) + 14px)}}
@media(max-height:520px) and (orientation:landscape){:root{--gutter:24px;--footer-h:88px}.masthead{height:56px}.wordmark{font-size:18px}.wordmark small{font-size:6px;margin-top:4px}.brand-mark{width:27px;height:27px}.masthead-center{display:none}.overview-copy{top:86px}.overview-copy h1{font-size:25px}.eyebrow{margin-bottom:10px}.overview-subtitle{font-size:9px;margin:12px 0}.overview-description,.overview-note{display:none}.collection-meta{height:25px}.collection{height:63px}.bottom-line{display:none}.collection-item{gap:10px;padding:6px 14px}.nav-name{font-size:14px}.nav-type{font-size:7px}.planet-thumb{width:22px;height:22px}.back-button{top:64px}.exhibit,.exhibit.is-right{top:109px;bottom:calc(var(--footer-h) + 8px);width:34%;min-width:250px}.exhibit h2{font-size:41px}.exhibit-japanese{font-size:8px;margin:8px 0 12px}.exhibit-title{font-size:21px;line-height:1.6}.exhibit-description{font-size:10px}.scene-index{top:74px;font-size:28px}.control-button{min-height:25px;padding:4px 0}}
@media(prefers-reduced-motion:reduce){*,*:before,*:after{animation:none!important;scroll-behavior:auto!important;transition:none!important}.loading-screen{transition:none!important}}

.read-hint{position:absolute;bottom:0;right:10px;padding:7px 0 4px 20px;background:linear-gradient(90deg,transparent,#050a0fee 20%);color:#9bb0a6;font-size:8px;letter-spacing:.06em;pointer-events:none}.read-hint span{margin-left:7px}
@media(max-width:760px){.overview-subtitle{display:none}.read-hint{font-size:7px;right:0;bottom:0}}

@media(max-height:520px) and (orientation:landscape){.exhibit,.exhibit.is-right{left:var(--gutter);right:auto}.exhibit.is-right{left:auto;right:var(--gutter)}.is-detail.detail-left #museum:before{background:linear-gradient(90deg,#03080adb 0%,#03080a99 25%,transparent 55%)}.is-detail.detail-right #museum:before{background:linear-gradient(270deg,#03080adb 0%,#03080a99 25%,transparent 55%)}.exhibit-japanese{display:block}.exhibit-arrows,.detail-right .exhibit-arrows{top:auto;bottom:calc(var(--footer-h) + 20px);left:auto;right:var(--gutter)}.overview-subtitle{display:block}}
/* Detail exhibits never retain overview labels beneath the astronomical scene. */
.is-detail #overview-copy,.is-detail #hotspots,.is-detail .overview-note{visibility:hidden}