:root{color-scheme:dark;--bg:#030609;--line:#ffffff24;--gold:#d9c3a0;--muted:#91a2a8;--text:#e7e9e5}*{box-sizing:border-box}html,body{margin:0;min-height:100%;background:var(--bg);color:var(--text);font-family:system-ui,-apple-system,"Microsoft YaHei",sans-serif}body{overflow-x:hidden}a{color:inherit;text-decoration:none}button,input,select{font:inherit}button,select{color:inherit;background:#111a1e;border:1px solid #ffffff38;cursor:pointer}button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible{outline:2px solid var(--gold);outline-offset:3px}button:hover,.btn:hover{border-color:var(--gold);color:#fff}button{padding:11px 16px}canvas{display:block}.top{height:72px;padding:0 5%;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--line);position:relative;z-index:5;background:#030609d9}.brand{font:600 13px ui-monospace,monospace;letter-spacing:.2em}.brand b{color:var(--gold);font-size:21px;margin-right:10px}.nav{display:flex;gap:28px;align-items:center;font-size:13px;color:#c0c9c9}.nav a:last-child{color:var(--gold)}.eyebrow,.micro{font:11px ui-monospace,monospace;letter-spacing:.18em;color:var(--gold);text-transform:uppercase}.hero{position:relative;min-height:calc(100vh - 72px);overflow:hidden}.scene{position:absolute;inset:0;width:100%;height:100%;z-index:0}.hero:after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,#030609 0%,#030609d9 25%,transparent 65%),linear-gradient(0deg,#030609 0%,transparent 30%);pointer-events:none}.hero-copy{position:relative;z-index:1;padding:13vh 6% 190px;max-width:660px;pointer-events:none}.hero-copy>*{pointer-events:auto}h1,h2,h3{font-family:Georgia,"Songti SC","SimSun",serif;font-weight:400}h1{font-size:clamp(48px,7vw,100px);line-height:1.08;letter-spacing:.04em;margin:22px 0}h2{font-size:clamp(34px,4vw,58px);margin:10px 0 22px}h3{font-size:26px;margin:10px 0}.lead{font-size:16px;line-height:1.9;color:#b7c4c5;max-width:510px}.btn{display:inline-block;padding:14px 20px;border:1px solid #a99475;color:#e4d3b8;font-size:14px;letter-spacing:.08em;background:#111817aa}.actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:28px}.hero-meta{margin-top:45px;color:#899b9f;font:11px ui-monospace,monospace;letter-spacing:.12em;line-height:2}.planet-nav{position:absolute;bottom:0;left:5%;right:5%;z-index:2;display:flex;border-top:1px solid var(--line);overflow:auto}.planet-nav button{min-width:100px;text-align:left;padding:20px 10px;background:none;border:0;border-right:1px solid #ffffff18;color:#b8c4c4}.planet-nav button span{display:block;color:#72838a;font:10px ui-monospace,monospace;margin-bottom:8px}.section{padding:100px 6%;border-top:1px solid var(--line)}.section-head{display:flex;align-items:end;justify-content:space-between;gap:20px;margin-bottom:35px}.muted{color:var(--muted);line-height:1.8}.grid{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--line);border:1px solid var(--line)}.card{background:#080e11;min-width:0}.card-art{height:210px;background-size:cover;background-position:center;position:relative}.card-art:after{content:"";position:absolute;inset:0;background:linear-gradient(0deg,#080e11,transparent 70%)}.card-body{padding:24px}.card-body p{color:#a4b2b4;line-height:1.8;min-height:70px;font-size:14px}.card-body a{font-size:13px;color:var(--gold)}.panel{background:#0b1215;border:1px solid var(--line);padding:28px}.layout{display:grid;grid-template-columns:1fr 340px;gap:24px}.stage{height:60vh;min-height:380px;position:relative;background:radial-gradient(ellipse at center,#14212a,#030609 70%);overflow:hidden}.stage 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canvas{width:100%;height:100%}.surface-ui{position:absolute;inset:0;pointer-events:none;padding:28px;display:flex;flex-direction:column;justify-content:space-between}.surface-ui>*{pointer-events:auto}.surface-top,.surface-bottom{display:flex;justify-content:space-between;gap:12px;align-items:flex-start}.surface-bottom{align-items:end}.surface-info{max-width:500px;background:#030609a8;padding:16px}.surface-info h2{font-size:34px;margin:8px 0}.surface-info p{font-size:12px;line-height:1.7;color:#c0cdce}.target-label{position:absolute;left:50%;top:30%;color:#fff;background:#03060988;border:1px solid #ffffff45;font-size:12px}.loading{position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);color:#d9c3a0;font:11px monospace;letter-spacing:.2em}.footer{padding:35px 6%;border-top:1px solid var(--line);display:flex;justify-content:space-between;gap:20px;color:#829195;font-size:12px;line-height:1.8}.wide-title{padding:90px 6% 45px}.wide-title 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250px}h1{font-size:52px}.lead{font-size:15px}.planet-nav{left:5%;right:0}.planet-nav button{min-width:88px}.grid{grid-template-columns:1fr 1fr}.card-art{height:150px}.card-body{padding:16px}.card-body p{min-height:0}.layout{grid-template-columns:1fr}.section{padding:65px 5%}.wide-title{padding:65px 5% 30px}.stage{height:48vh;min-height:320px}.surface-ui{padding:15px}.surface-top,.surface-bottom{flex-wrap:wrap}.surface-info h2{font-size:25px}.surface-info p{font-size:11px}.footer{display:block}.timeline-title{max-width:90%}}
.surface canvas{z-index:0!important}.surface-ui,.target-label{z-index:1}
/* Full-screen observatory */
[hidden]{display:none!important}.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0,0,0,0)}body.observatory{overflow:hidden}.obs-root{position:relative;width:100%;height:100vh;height:100dvh;overflow:hidden;background:#030609}.obs-canvas,.obs-labels{position:absolute;inset:0}.obs-canvas canvas{width:100%;height:100%;touch-action:none}.obs-labels{pointer-events:none}.obs-label{position:absolute;transform:translate(9px,-50%);pointer-events:auto;text-align:left;padding:3px 5px;border:0;background:#030609a3;text-shadow:0 1px 5px #000;color:#e1e9e7;font-size:12px;white-space:nowrap}.obs-label small{display:block;color:#889ba0;font:9px ui-monospace,monospace;letter-spacing:.1em}.obs-head{position:absolute;top:0;left:0;right:0;display:flex;align-items:center;justify-content:space-between;padding:25px 3%;gap:20px;z-index:3}.obs-logo{display:flex;align-items:center;gap:12px;font-family:Georgia,"Songti 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span{color:#d9c3a0}.obs-intro p{color:#9baeb1;font-size:14px;line-height:1.8}.obs-stats{display:flex;gap:24px;margin-top:35px;color:#d9c3a0;font:17px Georgia,serif}.obs-stats small{display:block;color:#839497;font:10px system-ui;margin-top:8px}.obs-clock{position:absolute;left:3%;bottom:24px;display:flex;align-items:center;gap:12px;border:1px solid #ffffff25;background:#050a0dd9;padding:8px 10px;z-index:3}.obs-clock button{width:37px;height:37px;border-radius:50%;padding:0;background:none}.obs-clock small{display:block;font:9px ui-monospace,monospace;letter-spacing:.12em;color:#819297}.obs-clock strong{display:block;font:12px ui-monospace,monospace;margin-top:5px}.obs-clock select{font-size:11px;border:0;border-left:1px solid #ffffff25;padding:8px;background:#050a0d}.obs-planets{position:absolute;left:50%;bottom:24px;transform:translateX(-50%);display:flex;align-items:center;border:1px solid #ffffff25;background:#050a0dd9;padding:7px;z-index:3;max-width:55%;overflow:auto}.obs-planets button{border:0;border-right:1px solid #ffffff1a;background:none;padding:6px 12px;color:#a9b9ba;white-space:nowrap;font-size:12px}.obs-planets button:last-child{border-right:0}.obs-planets button.active,.obs-planets button:hover{color:#e6cda6}.obs-planets small{display:block;color:#748488;font:9px ui-monospace,monospace;margin-bottom:4px}.obs-hint{position:absolute;right:3%;bottom:38px;color:#829297;font-size:11px;z-index:2}.obs-hint span{margin:0 6px;color:#526166}.obs-profile{position:absolute;right:3%;top:105px;bottom:105px;width:360px;overflow:auto;background:#080e11ec;border:1px solid #ffffff20;padding:28px;z-index:4;box-shadow:0 15px 60px #0007}.obs-profile h2{font-size:56px;margin:18px 0 3px}.obs-profile p{font-size:14px;line-height:1.8;color:#aababa}.obs-profile-close,.obs-modal-close{float:right;font-size:22px;line-height:1;background:none;border:0;padding:2px 6px}.obs-en{font:10px ui-monospace,monospace;letter-spacing:.18em;color:#a5b8bc}.obs-surface{width:100%;padding:14px;color:#f0ddbd;border-color:#c5ae89;background:#51463255;margin:8px 0 20px}.obs-facts{display:grid;grid-template-columns:1fr 1fr;border-top:1px solid #ffffff20}.obs-facts>div{font-size:13px;padding:13px 5px 13px 0;border-bottom:1px solid #ffffff20;line-height:1.5}.obs-facts>div.full{grid-column:1/-1}.obs-facts small{display:block;color:#829397;font-size:11px;margin-bottom:5px}.obs-modal{position:absolute;inset:0;z-index:9;background:#010406e8;overflow:auto;padding:6vh 5vw}.obs-modal-card{max-width:1120px;margin:auto;background:#0a1114;border:1px solid #ffffff25;padding:30px}.obs-modal-card p{color:#aababb;line-height:1.9}.obs-modal-card a{color:#d9c3a0}.obs-modal-card h2{font-size:45px}.obs-modal-card .stage{height:48vh}.obs-modal-card .layout{align-items:start}.obs-modal-close{position:sticky;top:0;z-index:1}.obs-root .surface{z-index:20}@media(max-width:800px){.obs-head{padding:16px 4%;gap:8px;align-items:flex-start}.obs-logo{font-size:13px;letter-spacing:.04em}.obs-logo small{font-size:8px}.obs-mark{width:32px;height:32px}.obs-status{display:none}.obs-links{gap:5px}.obs-links a,.obs-links button{padding:8px 9px;font-size:11px}.obs-links a:first-child{display:none}.obs-intro{top:16%;left:5%;width:260px}.obs-intro h1{font-size:45px;margin:14px 0 8px}.obs-intro p{font-size:13px}.obs-stats{margin-top:18px}.obs-clock{bottom:80px;left:4%;padding:5px 7px}.obs-planets{left:4%;right:0;bottom:15px;transform:none;max-width:none}.obs-planets button{padding:6px 11px}.obs-hint{display:none}.obs-profile{top:72px;right:4%;left:4%;bottom:145px;width:auto;padding:21px}.obs-profile h2{font-size:42px}.obs-modal{padding:4vh 3vw}.obs-modal-card{padding:18px}.obs-modal-card .layout{grid-template-columns:1fr}.obs-modal-card .stage{min-height:300px}.obs-label{font-size:10px}}
@media(max-width:800px){.obs-profile{top:auto;bottom:80px;height:42vh;max-height:42vh}.obs-profile h2{font-size:34px;margin:10px 0 3px}.obs-profile .obs-surface{margin:4px 0 12px}}
.surface-targets{position:absolute;inset:0;z-index:2;pointer-events:none}.surface-star-label{position:absolute;transform:translate(10px,-50%);pointer-events:auto;padding:4px 7px;background:#03060999;border:1px solid #ffffff36;font-size:11px}.surface-ui{z-index:3;pointer-events:none}.surface-ui>*{pointer-events:auto}
.explore-hero{position:relative;min-height:calc(100vh - 72px);padding:13vh 6% 100px;overflow:hidden;background:radial-gradient(ellipse at 78% 40%,#192a2d 0%,#080f12 35%,#030609 70%)}.explore-hero:before{content:"";position:absolute;inset:0;opacity:.5;background-image:radial-gradient(#fff 1px,transparent 1px),radial-gradient(#c9d4dc 1px,transparent 1px);background-size:89px 89px,157px 157px;background-position:0 0,44px 40px}.explore-hero-inner{position:relative;z-index:2;max-width:800px}.explore-hero h1{font-size:clamp(52px,7vw,100px);line-height:1.17}.explore-hero h1 em{font-style:normal;color:#d9c3a0}.explore-orb{position:absolute;right:8%;top:13%;width:min(37vw,480px);aspect-ratio:1;border-radius:50%;background:linear-gradient(120deg,#030609 3%,#0000 54%),url('textures/earth_daymap.jpg') center/cover;box-shadow:0 0 80px #a7c3bd25;opacity:.75}.explore-metrics{position:absolute;z-index:2;right:7%;bottom:8%;display:grid;grid-template-columns:1fr 1fr;border:1px solid #ffffff28;background:#030609aa}.explore-metrics div{padding:16px 24px;min-width:110px;border:1px solid #ffffff10}.explore-metrics strong{display:block;font:30px Georgia,serif;color:#e3d2b4}.explore-metrics span{font-size:11px;color:#91a4a7}.explore-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px}.explore-card{background:#080f12;border:1px solid #ffffff20}.explore-image{height:260px;background-position:center;background-size:cover;position:relative}.explore-image span{position:absolute;top:20px;left:22px;font:10px ui-monospace,monospace;letter-spacing:.15em;color:#ead6b2}.explore-image b{position:absolute;top:17px;right:22px;font:24px Georgia}.explore-copy{padding:25px 28px 30px}.explore-copy h3{font-size:30px}.explore-copy p{color:#a9b9ba;line-height:1.8;font-size:14px;min-height:55px}.explore-tags{display:flex;gap:7px;flex-wrap:wrap;margin:18px 0 25px}.explore-tags span{border:1px solid #ffffff22;padding:5px 8px;color:#9eb0b2;font-size:11px}.explore-copy>a{color:#dbc49e;font-size:13px}.explore-copy>a span{margin-left:8px}@media(max-width:700px){.explore-hero{min-height:720px;padding:90px 5% 180px}.explore-hero h1{font-size:49px}.explore-orb{width:64vw;right:-20%;top:40%;opacity:.45}.explore-metrics{left:5%;right:auto;bottom:30px;grid-template-columns:repeat(4,1fr)}.explore-metrics div{min-width:0;padding:10px 13px}.explore-metrics strong{font-size:24px}.explore-grid{grid-template-columns:1fr}.explore-image{height:220px}.explore-copy{padding:20px}.explore-copy p{min-height:0}}
@media(max-width:800px){.obs-links a:first-child{display:inline-block}.obs-links a,.obs-links button{padding:8px 7px;font-size:10px}.obs-logo{font-size:12px}}
.surface-star-label{transform:translateY(-50%)}
@media(max-width:800px){.obs-root.has-focus .obs-clock{display:none}.obs-profile{background:#080e11fa}}
.obs-label{transform:translateY(-50%)}
.obs-quote{border-left:2px solid #bb9c72;padding-left:13px;color:#e8d9c0!important;font-family:Georgia,"Songti SC",serif;font-size:16px!important}.dossier-section{padding:24px 0 8px;border-bottom:1px solid #ffffff1c}.dossier-section h3{font-size:22px;margin:10px 0}.dossier-section p,.dossier-section li{font-size:13px;line-height:1.8;color:#adbbbd}.dossier-section ul{padding-left:18px}.dossier-section li{margin-bottom:8px}
body.atlas-full{overflow:hidden}.atlas-root{height:100vh;height:100dvh;position:relative;overflow:hidden;background:#030609}.atlas-canvas,.atlas-labels{position:absolute;inset:0}.atlas-canvas canvas{touch-action:none}.atlas-labels{pointer-events:none}.atlas-labels button{position:absolute;pointer-events:auto;transform:translate(10px,-50%);border-radius:18px;background:#091014dc;border:1px solid #a9c1ca38;padding:7px 10px;font-size:12px;white-space:nowrap}.atlas-labels small{font:10px ui-monospace,monospace;color:#92a5a8}.atlas-head{position:absolute;top:0;left:0;right:0;padding:24px 3%;display:flex;align-items:center;justify-content:space-between;z-index:3}.atlas-head nav{display:flex;gap:9px}.atlas-head nav a{padding:10px 14px;border:1px solid #ffffff2a;border-radius:22px;font-size:12px;color:#c1cece}.atlas-intro{position:absolute;left:4%;top:17%;width:270px;pointer-events:none}.atlas-intro h1{font-size:clamp(42px,4vw,64px);margin:20px 0}.atlas-intro h1 span{color:var(--gold)}.atlas-intro p{color:#a0b0b1;font-size:14px;line-height:1.8}.atlas-panel{position:absolute;right:3%;top:100px;bottom:110px;width:350px;overflow:auto;padding:27px;border:1px solid #ffffff22;background:#080f12ee;z-index:2}.atlas-panel h2{font-size:39px;margin:16px 0}.atlas-panel h3{font-size:21px;margin:25px 0 10px}.atlas-panel p{font-size:13px;line-height:1.85;color:#a6b5b6}.atlas-en{font:10px ui-monospace,monospace;color:#93a9ae;letter-spacing:.14em}.atlas-stats,.atlas-facts{display:grid;grid-template-columns:1fr 1fr;margin:25px 0;border-top:1px solid #ffffff20}.atlas-stats span,.atlas-facts span{padding:14px 5px;border-bottom:1px solid #ffffff20;font-size:11px;color:#92a4a6}.atlas-stats b,.atlas-facts b{display:block;font:20px Georgia,serif;color:#e0d2bb;margin:5px 0}.atlas-facts b{font-size:15px}.atlas-kind{color:#ddc7a5!important}.atlas-members{border-top:1px solid #ffffff1c}.atlas-members button{width:100%;text-align:left;border:0;border-bottom:1px solid #ffffff1c;background:none;padding:10px 2px;font-size:13px}.atlas-members button span{float:right;color:#d9c3a0}.atlas-controls{position:absolute;bottom:22px;left:50%;transform:translateX(-50%);display:flex;gap:8px;align-items:center;background:#081015ed;border:1px solid #ffffff2a;padding:8px;z-index:3}.atlas-tabs{display:flex;gap:4px}.atlas-controls button,.atlas-controls select{padding:10px;font-size:12px;white-space:nowrap}.atlas-controls button.active{color:#e9d6b7;background:#51463277;border-color:#aa987d}.atlas-controls label{display:flex;align-items:center;gap:8px;margin:0;white-space:nowrap}.atlas-controls label span{font-size:11px}.atlas-hint{position:absolute;left:3%;bottom:35px;color:#819296;font-size:11px}.atlas-action{color:#dbc7a7}.atlas-root .actions button{padding:14px}.atlas-panel .actions{margin-top:20px}@media(max-width:800px){.atlas-head{padding:16px 4%}.atlas-head .brand{font-size:10px}.atlas-head nav{gap:5px}.atlas-head nav a{font-size:10px;padding:8px}.atlas-head nav a:nth-child(-n+2){display:none}.atlas-intro{top:12%;left:5%;width:250px}.atlas-intro h1{font-size:43px;margin:12px 0}.atlas-intro p{font-size:12px}.atlas-panel{left:4%;right:4%;width:auto;top:auto;bottom:120px;height:34vh;padding:18px}.atlas-panel h2{font-size:29px;margin:8px 0}.atlas-panel p{font-size:12px}.atlas-controls{left:3%;right:3%;bottom:12px;transform:none;display:grid;grid-template-columns:1fr auto;width:auto}.atlas-tabs{grid-column:1/-1}.atlas-tabs button{flex:1}.atlas-controls label select{min-width:0;width:100%}.atlas-controls label{min-width:0}.atlas-controls button,.atlas-controls select{padding:8px;font-size:11px}.atlas-hint{display:none}.atlas-labels button{font-size:10px;padding:5px}.atlas-intro:not([hidden])~.atlas-panel{display:none}}
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.obs-modal-card:has(#gravity-lab){max-width:1440px}.obs-modal-card:has(#gravity-lab) .stage{height:62vh}@media(max-width:800px){.obs-modal-card:has(#gravity-lab) .stage{height:42vh}}
.atlas-labels button{transform:translateY(-50%)}
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