/* Earth and solar-system experience. */
#spaceStage{position:fixed;inset:0;z-index:0;background:#02050b;touch-action:none}#spaceStage canvas{display:block;width:100%;height:100%}#planetLabels{position:fixed;inset:0;pointer-events:none;z-index:2;overflow:hidden}.planet-label{position:absolute;left:0;top:0;color:#aebbc9;font-size:12px;white-space:nowrap;letter-spacing:.1em;pointer-events:auto;padding:8px 10px;transform:translate(-1000px,-1000px);text-shadow:0 1px 9px #000,0 0 20px #000}.planet-label strong{font-size:13px;font-weight:400;display:block}.planet-label small{font-size:12px;opacity:.55}.planet-label.earth-label{color:#bdeaff}.planet-label.sun-label{color:#ffcc80}.planet-label:hover{color:#fff}.space-vignette{position:fixed;inset:0;z-index:1;pointer-events:none;background:linear-gradient(90deg,#02050bdb 0%,#02050b87 24%,transparent 51%),linear-gradient(0deg,#02050b 0%,#02050b99 15%,transparent 35%)}.scene-status{position:fixed;left:50%;top:48%;transform:translate(-50%,-50%);color:#adcce5;background:#040b15c9;padding:12px 20px;font-size:14px;z-index:10;border:1px solid #a4cae52a}.scene-status[hidden]{display:none}.star-map{display:none!important}.header{pointer-events:none;height:100px}.header button,.header nav{pointer-events:auto}main{pointer-events:none;min-height:calc(100svh - 162px)}.hero button,.destinations{pointer-events:auto}.hero{padding:70px 0 35px;width:49%}.hero h1{font-size:clamp(35px,3.6vw,65px);line-height:1.45;letter-spacing:.035em}.hero h1 span{display:block}.hero .intro{font-size:16px}.eyebrow{font-size:12px}.hero-actions{flex-wrap:wrap;gap:20px}.primary{background:#071623b3;backdrop-filter:blur(10px);padding:17px 20px}.text-action{font-size:14px;color:#adbbca;border-bottom:1px solid #91bbdc55;padding:10px 0;pointer-events:auto}.text-action:hover{color:white}.map-help{display:flex;justify-content:space-between;padding:5px 0 20px;font-size:12px;opacity:.8}.map-help span:first-child{opacity:.75}.destinations{background:#030a148a}.destination{min-height:98px;padding-top:20px;padding-bottom:20px}.chapter-caption{display:block;margin-top:30px;font-size:12px;line-height:2}.chapter-caption span{display:block}.chapter-caption span+span:before{display:none}footer{height:62px}.credits-button{padding:8px 0;font-size:12px;color:#829bb0;pointer-events:auto}footer .footer-quote{font-size:12px;letter-spacing:0;color:#8192a7}.chart-mode .space-vignette{background:linear-gradient(0deg,#02050bf2,transparent 34%)}.chart-mode .hero{visibility:hidden;opacity:0}.chart-mode .map-help span:last-child:after{content:" · 点选行星可近距离观察"}.chart-mode .planet-label{font-size:12px}.chart-mode main{justify-content:flex-end}.world-open #spaceStage{filter:blur(4px);transition:filter .5s}.world-visual img{object-fit:cover;object-position:72% center;filter:none!important;opacity:.7}.world-visual{background:#031225}
#journeyView{position:fixed;inset:0;z-index:30;pointer-events:none}#journeyView[hidden]{display:none}#journeyMap{position:absolute;inset:0;opacity:0;pointer-events:none;transition:opacity 1.2s;background:#02050b}#journeyView.map-visible #journeyMap{opacity:1;pointer-events:auto}.journey-shade{position:absolute;inset:0;pointer-events:none;background:linear-gradient(90deg,#020913cc,transparent 48%),linear-gradient(0deg,#020913bb,transparent 32%,transparent 82%,#020913aa)}.journey-top{position:absolute;left:4.4%;right:4.4%;top:28px;display:flex;align-items:center;justify-content:space-between}.journey-brand strong{font-size:20px;display:block;font-weight:400;letter-spacing:.1em;margin-top:6px}.round-action{pointer-events:auto;background:#071320b3;border:1px solid #acd7f440;backdrop-filter:blur(12px);padding:12px 18px;font-size:13px;display:flex;align-items:center;gap:22px;border-radius:2px}.round-action span{font-size:23px;line-height:1}.journey-title{position:absolute;left:5%;top:31%;max-width:35%;transition:opacity .6s}.journey-title>span{font-size:12px;letter-spacing:.2em;color:#9cbdcf}.journey-title h2{font-size:clamp(36px,4.7vw,72px);font-weight:350;letter-spacing:.16em;line-height:1.5;margin:15px 0}.journey-title p{font-size:16px;line-height:1.85;color:#b5c7d4;max-width:270px}.journey-trail{position:absolute;left:5%;bottom:7%;display:flex;align-items:center;gap:15px;pointer-events:auto;padding:20px 24px;background:#04101fc9;border:1px solid #83c2ed2e;backdrop-filter:blur(15px)}.journey-trail button{color:#8da4b7;font-size:15px;line-height:1.5;padding:5px;min-width:48px;text-align:left;position:relative}.journey-trail button small{display:block;font-size:12px;letter-spacing:.08em}.journey-trail button.active{color:#d5f1ff}.journey-trail button.active:before{content:"";position:absolute;left:5px;top:-8px;width:18px;height:2px;background:#9de0ff;box-shadow:0 0 12px #7acfff}.journey-trail i{width:20px;height:1px;background:#769cb653}.arrival-card{position:absolute;right:5%;bottom:12%;width:300px;background:#071320df;border:1px solid #95c7e839;padding:26px 28px;backdrop-filter:blur(18px);pointer-events:auto;animation:dialogIn .7s ease-out}.arrival-card[hidden]{display:none}.arrival-card h3{font-weight:400;font-size:25px;letter-spacing:.07em;line-height:1.6;margin:15px 0}.arrival-card p{font-size:15px;color:#b3c4d4;line-height:1.9}.arrival-coordinates{font-size:12px;letter-spacing:.04em;color:#829caf}.arrival-card button{margin-top:24px;padding:15px 0 0;border-top:1px solid #83b5d630;width:100%;display:flex;justify-content:space-between;font-size:13px;color:#b4def7}.map-status{position:absolute;top:110px;right:5%;font-size:13px;max-width:300px;color:#e4c18e;background:#0b1420c9;line-height:1.8;padding:0 12px}.map-status:empty{display:none}.journey-mode .header,.journey-mode main,.journey-mode footer,.journey-mode #planetLabels{visibility:hidden;pointer-events:none}.journey-mode .space-vignette{opacity:0}.journey-mode .cursor-light{display:none}.maplibregl-ctrl-attrib{font-size:12px!important;background:#04101dcc!important;color:#bbccd8!important;max-width:70vw}.maplibregl-ctrl-attrib a{color:#bbccd8!important}.maplibregl-ctrl-bottom-right{right:12px;bottom:9px}.geo-label{font-size:14px;font-weight:400;color:white;background:#06172cc7;border:1px solid #9ad4fc5c;padding:7px 13px;white-space:nowrap;letter-spacing:.12em;box-shadow:0 5px 30px #0006;pointer-events:none}.geo-label:before{content:"";display:inline-block;width:6px;height:6px;border-radius:50%;background:#a4ddff;margin-right:9px;box-shadow:0 0 10px #a4ddff}.maplibregl-canvas:focus{outline:none}#creditsDialog{padding:45px;max-width:630px;font-size:15px;line-height:1.95}#creditsDialog h2{font-size:25px;font-weight:400}#creditsDialog p{color:#adbdcd}.source-links{display:flex;flex-wrap:wrap;gap:15px}.source-links a{color:#acd9f5;font-size:13px}.toast{z-index:100}
@media(max-width:1100px){.hero{width:49%;padding-top:65px}.hero h1{font-size:42px}.hero-actions{gap:15px}.primary{font-size:13px;padding:15px}.chapter-caption{margin-top:24px}footer .footer-quote{display:none}.journey-trail{padding:17px;gap:9px}.arrival-card{right:4%;width:280px}.journey-title{top:25%}}
@media(max-width:700px){.header{height:85px}.header nav{gap:12px;margin-right:15px}.brand small{font-size:10px}.header .icon-button#motion{display:flex}.header .icon-button#fullscreen{display:none}.utilities{gap:10px}.sound{display:none}main{padding-top:310px;min-height:calc(100svh - 140px)}.hero{width:100%;padding:0 0 24px}.hero h1{font-size:36px;line-height:1.4;margin-top:12px}.hero h1 span{display:inline}.hero .intro{font-size:14px}.hero .eyebrow{font-size:11px;letter-spacing:.1em}.hero-actions{gap:18px;margin-top:20px}.primary{font-size:13px;padding:14px}.text-action{font-size:13px}.chapter-caption{display:none}.space-vignette{background:linear-gradient(0deg,#02050b 0%,#02050bb3 34%,transparent 65%)}.map-help{display:flex;font-size:11px;padding-bottom:17px}.map-help span:last-child{display:none}.destinations{margin-bottom:0}.destination{min-height:90px;padding:15px 11px}.destination small{font-size:11px}.destination-number{font-size:11px}.planet-label{font-size:11px;padding:6px}.planet-label strong{font-size:12px}.planet-label small{display:none}.chart-mode main{padding-top:calc(100svh - 305px)}.chart-mode .hero{display:none}.chart-mode .map-help{display:block;text-align:center;font-size:12px}.chart-mode .space-vignette{background:linear-gradient(0deg,#02050b,transparent 30%)}footer{font-size:11px;height:55px}.journey-top{top:20px;left:6%;right:6%}.journey-brand strong{font-size:17px}.journey-brand .eyebrow{font-size:10px}.round-action{padding:9px 11px;gap:10px;font-size:12px}.journey-title{left:6%;top:17%;max-width:90%}.journey-title h2{font-size:36px;margin:8px 0}.journey-title p{font-size:13px;max-width:220px}.journey-title>span{font-size:11px}.journey-trail{left:6%;right:6%;bottom:43px;gap:7px;justify-content:space-between;padding:14px 12px}.journey-trail i{width:10px}.journey-trail button{font-size:13px;min-width:40px}.journey-trail button small{font-size:10px}.journey-shade{background:linear-gradient(0deg,#020913b0,transparent 38%,transparent 62%,#020913b0)}.arrival-card{right:6%;left:6%;bottom:150px;width:auto;padding:18px 22px}.arrival-card h3{font-size:22px;margin:9px 0}.arrival-card p{font-size:13px;margin:7px 0;line-height:1.6}.arrival-card p br{display:none}.arrival-card .eyebrow{font-size:10px}.arrival-card button{margin-top:12px;padding-top:12px}.arrival-coordinates{font-size:11px}.maplibregl-ctrl-attrib{font-size:10px!important;max-width:100vw}.maplibregl-ctrl-bottom-right{bottom:3px;right:3px}.map-status{top:100px;right:6%;font-size:12px;max-width:250px}.geo-label{font-size:12px;padding:5px 9px}#creditsDialog{padding:35px 25px}.journey-mode #spaceStage{z-index:0}}

.journey-mode{overflow:hidden}.chart-mode .hero{display:none}