@font-face{font-family:'Noto Serif SC';font-style:normal;font-weight:400;font-display:swap;src:url('assets/title-font.ttf') format('truetype')}
:root{color-scheme:dark;--bg:#07090f;--panel:#0b0e16;--text:#eeece7;--muted:#9198a9;--gold:#d7bb8b;--line:rgba(183,194,218,.15);--serif:'Noto Serif SC','Songti SC',SimSun,serif;--sans:Inter,-apple-system,BlinkMacSystemFont,'Segoe UI','PingFang SC','Microsoft YaHei',sans-serif;scroll-behavior:smooth;scroll-padding-top:100px}
*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text);font-family:var(--sans);font-size:15px;-webkit-font-smoothing:antialiased}button,a,input,select{-webkit-tap-highlight-color:transparent}button,input,select{font:inherit}button,a,summary{touch-action:manipulation}button{cursor:pointer}a{color:inherit;text-decoration:none}button{color:inherit}a:focus-visible,button:focus-visible,summary:focus-visible,input:focus-visible,select:focus-visible{outline:2px solid var(--gold);outline-offset:6px}::selection{background:#b48e5466;color:#fff}p,h1,h2,h3{margin:0}button{border:0;background:none}button:disabled{opacity:.25;cursor:default}img{max-width:100%;display:block}.wrap{width:min(1280px,calc(100% - 112px));margin-inline:auto}.section{padding-block:105px}.eyebrow{display:flex;align-items:center;gap:14px;font-size:10px;font-weight:500;letter-spacing:2.4px;color:var(--muted);line-height:1.8}.eyebrow>span:first-child{color:var(--gold)}.gold-dot,.live-dot{display:inline-block;width:5px;height:5px;background:var(--gold);border-radius:50%;box-shadow:0 0 12px #d7bb8b70}.eyebrow-line{display:block;width:42px;height:1px;background:#72717855}.serif{font-family:var(--serif);font-weight:400;color:#e1cba7}.skip{position:fixed;top:-80px;left:20px;background:var(--gold);color:#111;padding:12px;z-index:100}.skip:focus{top:20px}.sr-only{position:absolute;width:1px;height:1px;padding:0;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}.reading-progress{position:fixed;top:0;left:0;right:0;height:2px;z-index:60}.reading-progress span{height:100%;width:0;display:block;background:var(--gold)}
.header{position:absolute;inset:0 0 auto;z-index:40;height:96px;display:flex;align-items:center;justify-content:space-between;padding-inline:56px;border-bottom:1px solid rgba(208,216,237,.09)}.brand{display:inline-flex;align-items:center;gap:11px;font-size:17px;font-weight:500;letter-spacing:2px}.brand small{display:block;font-size:7px;letter-spacing:2.2px;color:var(--muted);margin-top:5px}.header nav{display:flex;gap:40px;font-size:12px;color:#b9beca;position:absolute;left:50%;transform:translateX(-50%)}.header nav a{transition:color .2s}.header nav a:hover{color:var(--gold)}.motion-toggle{display:flex;align-items:center;gap:9px;color:var(--muted);font-size:10px;letter-spacing:1px;border:1px solid var(--line);border-radius:30px;padding:9px 13px}.motion-icon{color:var(--gold);font-size:13px}
.hero{position:relative;min-height:850px;height:100svh;max-height:1100px;overflow:hidden;background:#07090f;isolation:isolate}.hero-art{position:absolute;inset:0;z-index:-3;background:radial-gradient(ellipse at 75% 40%,#14203566,transparent 60%)}.hero-art img{position:absolute;width:1060px;max-width:none;height:auto;top:100px;left:calc(50% - 110px);opacity:.78;transform:rotate(-18deg);filter:saturate(.72)}.hero-art:after{content:'';position:absolute;inset:0;background:linear-gradient(90deg,#07090f 0%,#07090fea 22%,#07090f55 49%,transparent 76%),linear-gradient(0deg,#07090f,transparent 28%,transparent 75%,#07090f66)}#starfield{position:absolute;inset:0;z-index:-2;width:100%;height:100%;pointer-events:none;opacity:.62}.hero-ring{position:absolute;border:1px solid #b5c6e011;border-radius:50%;z-index:-1;pointer-events:none}.ring-one{width:1030px;height:1030px;left:calc(55% - 210px);top:-92px}.ring-two{width:1210px;height:1210px;left:calc(55% - 300px);top:-182px}.hero-content{position:relative;padding-top:190px}.hero-content>.eyebrow{font-size:10px;letter-spacing:3px;color:#b9ac94}.hero h1{font-size:clamp(62px,6.7vw,103px);font-weight:500;letter-spacing:4px;line-height:1.27;margin-top:24px}.hero-english{margin-top:22px;font:italic 15px Georgia,serif;letter-spacing:.5px;color:#999aaa}.hero-description{font-size:14px;line-height:2.1;color:#a0a5b5;margin-top:29px;letter-spacing:1px}.button{height:48px;padding:0 25px;display:inline-flex;align-items:center;justify-content:center;gap:35px;font-size:12px;letter-spacing:1px;border:1px solid transparent;transition:background .25s,transform .25s}.button span{font-size:19px}.button:hover{transform:translateY(-2px)}.primary{background:var(--gold);color:#11131a;margin-top:31px}.primary:hover{background:#efdab7}.hero-secondary{font-size:11px;letter-spacing:.5px;margin-left:22px;color:#b5b7be}.hero-secondary span{margin-left:8px}.image-label{position:absolute;right:7%;top:64%;display:flex;gap:13px;align-items:center;font-family:monospace;font-size:11px;letter-spacing:2px;color:#d7d5d7}.crosshair{font-size:28px;font-weight:200;color:var(--gold)}.image-label small{display:block;font:9px var(--sans);letter-spacing:1px;color:#8c94a9;margin-top:6px}.hero-footer{position:absolute;bottom:31px;left:0;right:0;display:flex;align-items:end;justify-content:space-between;padding-top:25px;border-top:1px solid var(--line)}.scroll-hint{display:flex;align-items:center;gap:14px;font-size:10px;letter-spacing:2px;color:#9098a8}.scroll-hint>span{font-size:20px;color:var(--gold)}.scroll-hint i{width:42px;height:1px;background:var(--line)}.hero-stats{display:flex;gap:55px}.hero-stats strong{font:25px Georgia,serif;color:#dedfdf;letter-spacing:1px}.hero-stats strong span{font:9px var(--sans);color:#a7acb7;letter-spacing:1px;margin-left:5px}.hero-stats small{font-size:8px;color:#7e879a;display:block;margin-top:9px;letter-spacing:1px}
.section-heading{display:flex;justify-content:space-between;align-items:flex-end;gap:30px;margin-bottom:44px}.section-heading h2,.questions h2{font-family:var(--serif);font-weight:400;font-size:34px;letter-spacing:1px;line-height:1.6;margin-top:13px}.section-heading>p{font-size:12px;line-height:1.9;color:var(--muted)}.journey-navigation{display:grid;grid-template-columns:repeat(7,1fr);border-bottom:1px solid var(--line);margin-bottom:24px}.stage-tab{position:relative;text-align:left;padding:16px 0 23px;color:#8b91a3;transition:color .2s;white-space:nowrap}.stage-tab span{display:block;font:10px monospace;letter-spacing:2px;color:#6a7081;margin-bottom:11px}.stage-tab strong{font-size:12px;font-weight:400}.stage-tab:after{content:'';position:absolute;height:2px;left:0;right:25px;bottom:-1px;background:transparent;transition:background .2s}.stage-tab[aria-pressed=true]{color:#eddec7}.stage-tab[aria-pressed=true] span{color:var(--gold)}.stage-tab[aria-pressed=true]:after{background:var(--gold)}.stage-tab:hover{color:var(--text)}.explorer{display:grid;grid-template-columns:1.35fr 1fr;min-height:455px;border:1px solid var(--line);background:linear-gradient(115deg,#0c111c88,#0b0d15)}.scene-wrap{position:relative;min-height:455px;overflow:hidden;background:radial-gradient(ellipse at 50% 50%,#18213b44,transparent 68%)}#scene{width:100%;height:100%;position:absolute;inset:0;display:block}.scene-top,.scene-bottom{display:flex;justify-content:space-between;position:absolute;left:24px;right:24px;z-index:2;color:#8f99af;font:9px var(--sans);letter-spacing:1.4px;pointer-events:none}.scene-top{top:23px}.scene-top>span:first-child{display:flex;align-items:center;gap:8px}.live-dot{width:4px;height:4px;background:#8da1cb;box-shadow:0 0 9px #798fbd}.scene-top>span:last-child{font-family:monospace;color:#b7b4b4}.scene-bottom{bottom:20px;font-size:8px;letter-spacing:.5px}.scene-marker{position:absolute;bottom:61px;width:100%;text-align:center;font-size:10px;color:#a4aabc;letter-spacing:1.5px;pointer-events:none}.stage-detail{padding:40px 39px;border-left:1px solid var(--line);display:flex;flex-direction:column;align-items:flex-start;justify-content:center}.stage-detail .eyebrow{font-size:9px;letter-spacing:2px;color:#a79c8f}.stage-detail h3{font-size:26px;font-family:var(--serif);font-weight:400;margin-top:9px;letter-spacing:1px}.stage-measure{margin-block:22px 20px}.stage-measure strong{font:45px Georgia,serif;color:var(--gold);letter-spacing:1px}.stage-measure>span{font-size:12px;margin-left:10px;color:#c3b7a5}.stage-measure small{display:block;font-size:9px;letter-spacing:.5px;color:var(--muted);margin-top:6px}.stage-description{font-size:12px;line-height:2;color:#b5bbc8}.fact-note{margin-top:19px;padding-top:15px;display:flex;gap:11px;border-top:1px solid var(--line);font-size:11px;line-height:1.9;color:#8e97ab}.tiny-star{color:var(--gold);font-size:20px;line-height:1.4}.text-link{font-size:10px;letter-spacing:.5px;color:#c5b392;display:inline-flex;gap:16px;align-items:center}.text-link:hover{color:#f2d7a8}.stage-detail>.text-link{margin-top:20px}.journey-controls{display:flex;align-items:center;justify-content:space-between;margin-top:23px}.stage-arrows{display:flex;align-items:center;gap:9px}.icon-button{border:1px solid var(--line);width:33px;height:33px;color:#ccc4b6}.icon-button:not(:disabled):hover{border-color:#8d7b61;background:#d7bb8b10}.stage-arrows>span{font-size:10px;color:var(--muted);margin-left:12px}.play-button{font-size:10px;letter-spacing:1px;display:flex;align-items:center;gap:8px;color:#bdb4a7}.play-button>span{font-size:16px}.play-button[aria-pressed=true]{color:var(--gold)}.range-label{display:flex;justify-content:space-between;color:#7e879a;font-size:8px;letter-spacing:1px;margin-top:25px}.range-label>span:nth-child(2){color:#666f82}#scale-range{appearance:none;-webkit-appearance:none;width:100%;height:24px;margin:8px 0 0;background:transparent;cursor:pointer}#scale-range::-webkit-slider-runnable-track{height:2px;background:linear-gradient(90deg,var(--gold) var(--range-progress,0%),#303440 var(--range-progress,0%))}#scale-range::-moz-range-track{height:2px;background:#303440}#scale-range::-moz-range-progress{background:var(--gold);height:2px}#scale-range::-webkit-slider-thumb{appearance:none;width:11px;height:11px;border-radius:50%;background:var(--gold);margin-top:-4.5px;box-shadow:0 0 0 5px #d7bb8b11}#scale-range::-moz-range-thumb{width:11px;height:11px;border:0;border-radius:50%;background:var(--gold)}
.interlude{border-block:1px solid var(--line);display:flex;gap:29px;align-items:center;padding-block:43px}.interlude-symbol{font-size:42px;color:var(--gold)}.interlude>div:nth-child(2)>p:last-child{font-family:var(--serif);font-size:23px;margin-top:10px}.interlude>div:nth-child(2)>p:last-child>span{color:var(--gold)}.interlude-note{margin-left:auto;font-size:11px;color:var(--muted);line-height:1.9}.interlude-note strong{color:#bdc3d0;font-weight:400}.solar{padding-bottom:85px}.solar-overview{height:109px;border-block:1px solid var(--line);position:relative;overflow:hidden;display:flex;align-items:center;padding:0 27px 0 155px;gap:50px;background:radial-gradient(ellipse at 0% 50%,#4d2f171c,transparent 70%)}.sun-fragment{position:absolute;left:-53px;top:-30px;width:145px;height:145px;border-radius:50%;background:radial-gradient(at 70% 40%,#fff1c9,#f3b65d 45%,#da7534 82%);box-shadow:0 0 20px #f6b55850,0 0 60px #e9a64422;filter:contrast(1.1)}.solar-overview>div strong{font-family:var(--serif);font-size:19px;font-weight:400;letter-spacing:4px;display:block}.solar-overview>div span{display:block;font-size:8px;color:var(--gold);margin-top:8px;letter-spacing:1px}.solar-overview>p{font-size:11px;color:#9199ac;line-height:1.9}.solar-caption{font-size:8px;line-height:1.8;color:#626f88;margin-left:auto;text-align:right}.planet-nav{display:grid;grid-template-columns:repeat(8,minmax(0,1fr));padding-top:35px;position:relative;border-bottom:1px solid var(--line)}.planet-nav:before{content:'';position:absolute;left:0;right:0;top:91px;height:1px;background:linear-gradient(90deg,transparent,#8a97ba27,transparent)}.planet-button{display:flex;flex-direction:column;align-items:center;position:relative;gap:4px;padding:0 0 25px;transition:background .2s;min-width:0}.planet-button:after{content:'';position:absolute;left:30%;right:30%;bottom:-1px;height:2px;background:transparent}.planet-button[aria-pressed=true]:after{background:var(--gold)}.planet-button[aria-pressed=true] .planet-label{color:var(--gold)}.planet-button[aria-pressed=true] .planet-orb{transform:scale(1.12)}.planet-visual{height:105px;display:flex;align-items:center;justify-content:center;width:100%;position:relative}.planet-orb{width:var(--diameter);height:var(--diameter);border-radius:50%;position:relative;display:block;box-shadow:inset -12px -7px 15px #0009,inset 1px 0px 4px #ffffff40;transition:transform .4s;flex-shrink:0}.planet-button:hover .planet-orb{transform:translateY(-5px)}.planet-orb.mercury{background:radial-gradient(circle at 34% 28%,#b7b0a5 0 6%,transparent 7%),radial-gradient(circle at 68% 48%,#575655 0 11%,transparent 12%),radial-gradient(circle at 40% 60%,#595757 0 7%,transparent 9%),#9a948c}.planet-orb.venus{background:repeating-linear-gradient(165deg,#bb9670 0,#dcc292 9px,#b49365 15px,#d1b484 24px)}.planet-orb.earth{background:#143c69 url('assets/earth.webp') center/cover}.planet-orb.mars{background:radial-gradient(ellipse at 40% 43%,#77584c 0 14%,transparent 23%),radial-gradient(ellipse at 33% 65%,#724934 0 9%,transparent 19%),linear-gradient(135deg,#daac88,#b77659 45%,#6c4134)}.planet-orb.jupiter{background:repeating-linear-gradient(174deg,#b5a28d 0 9%,#c9bbaa 11% 18%,#947564 21% 29%,#d6c9b5 30% 41%,#b59076 44% 50%)}.planet-orb.jupiter:before{content:'';position:absolute;width:21%;height:12%;border-radius:50%;background:#a65f44;left:49%;top:61%;filter:blur(1px)}.planet-orb.saturn{background:repeating-linear-gradient(168deg,#a4956e 0 8%,#c8b993 11% 19%,#b6a57b 21% 29%)}.planet-orb.saturn:before{content:'';position:absolute;inset:33% -42%;border-radius:50%;border:8px solid #bda77a88;box-shadow:0 0 0 2px #dccda940,0 0 0 5px #9d886a35;transform:rotate(-26deg)}.planet-orb.uranus{background:linear-gradient(125deg,#b1dbdb,#77b5bd 55%,#345b68)}.planet-orb.neptune{background:repeating-linear-gradient(169deg,#426ba5 0 6%,#42699f 9% 15%,#4b73aa 19% 22%)}.planet-label{font-size:12px;letter-spacing:1px;color:#b2b7c3}.planet-en{font:8px var(--sans);text-transform:uppercase;letter-spacing:1px;color:#656f84;margin-top:3px}.planet-detail{display:grid;grid-template-columns:190px 1fr 240px;gap:45px;padding-block:33px;border-bottom:1px solid var(--line);min-height:221px}.planet-identity{display:flex;align-items:flex-start;gap:22px}.planet-order{font:11px monospace;color:#746c60;line-height:20px}.planet-identity .eyebrow{font-size:9px;color:var(--gold)}.planet-identity h3{font-family:var(--serif);font-size:28px;line-height:1.5;margin-top:8px;font-weight:400;letter-spacing:4px}.planet-type{font-size:9px;color:#81899c;display:block;margin-top:11px}.planet-copy>p{font-size:12px;line-height:2;color:#a3abba;min-height:74px}.planet-copy>.text-link{margin-top:15px}.planet-facts{margin:0;border-left:1px solid var(--line);padding-left:26px;display:flex;flex-direction:column;gap:17px}.planet-facts>div{display:flex;justify-content:space-between;align-items:center;gap:10px}.planet-facts dt{font-size:8px;color:#8993a6}.planet-facts dd{font:15px Georgia,serif;margin:0;white-space:nowrap}.planet-facts dd small{font:8px var(--sans);color:#8891a3;margin-left:5px}.solar-footnote{display:flex;justify-content:space-between;gap:20px;font-size:8px;line-height:1.8;color:#727e96;margin-top:18px}.solar-footnote a{color:#a79a85}.light-lab{padding:42px 45px;display:grid;grid-template-columns:1fr 1fr;gap:65px;border:1px solid var(--line);background:radial-gradient(at 80% 50%,#151c3144,transparent)}.light-lab h2{font-size:22px;font-family:var(--serif);font-weight:400;margin-top:14px}.light-copy>p:not(.eyebrow){font-size:11px;color:#8893a9;margin-top:15px}.light-copy select{margin-top:22px;font-size:11px;background:#111522;border:1px solid #394255;border-radius:0;padding:10px 32px 10px 14px;min-width:220px;color:#d4c4aa}.light-result{display:flex;flex-direction:column;justify-content:center;text-align:center}.light-path{display:flex;align-items:center;gap:0;width:85%;margin:0 auto 24px}.light-path>span{width:12px;height:12px;border-radius:50%;display:block}.light-start{background:var(--gold);box-shadow:0 0 20px #d7bb8b88}.light-end{background:#6f9fd1;box-shadow:0 0 15px #6f9fd155}.light-path i{display:block;flex:1;height:1px;background:linear-gradient(90deg,#d7bb8b99,#56739944);position:relative;overflow:hidden}.light-path i:after{content:'';display:block;position:absolute;width:55px;height:1px;background:linear-gradient(90deg,transparent,#fff3d6);animation:travel 4s linear infinite;left:-55px}@keyframes travel{to{left:100%}}#light-time{font:42px Georgia,serif;color:var(--gold)}#light-time small{font:11px var(--sans);color:#969db0;margin-inline:3px 10px}#light-note{font-size:10px;color:#8a94a9;margin-top:14px;line-height:1.8}
.earth-section{position:relative;padding:125px 0 95px;overflow:hidden}.earth-layout{position:relative;display:grid;grid-template-columns:1.1fr 1fr;gap:80px;align-items:center}.earth-visual{position:relative}.earth-visual img{width:100%;height:auto;border-radius:50%;filter:saturate(.8) brightness(.88);box-shadow:0 0 70px #14375b30}.earth-visual:after{content:'';position:absolute;inset:-23px;border:1px solid #546e9829;border-radius:50%;pointer-events:none}.earth-coordinate{position:absolute;top:22px;left:-5px;color:#b1bdd0;font:8px monospace;letter-spacing:2px}.earth-image-credit{position:absolute;bottom:-51px;left:0;right:0;text-align:center;color:#6f7c95;font-size:8px;letter-spacing:.5px}.earth-halo{position:absolute;left:4%;top:4%;width:60%;height:88%;background:radial-gradient(ellipse,#172c5129,transparent 65%);pointer-events:none}.earth-copy h2{font-family:var(--serif);font-weight:400;font-size:39px;line-height:1.7;margin-top:18px;letter-spacing:1px}.earth-copy h2 span{color:#aec4dc}.earth-copy>p:not(.eyebrow){font-size:12px;line-height:2.1;color:#9ca6b9;margin-top:22px}.earth-copy>p:not(.eyebrow)+p{margin-top:10px}.earth-facts{display:flex;justify-content:space-between;gap:15px;margin:28px 0;border-block:1px solid var(--line);padding-block:22px}.earth-facts dt{font-size:8px;color:#8591a8}.earth-facts dd{font:25px Georgia,serif;white-space:nowrap;margin:10px 0 0}.earth-facts small{font:9px var(--sans);color:#8c9ab2}.outline{border-color:#86765e;color:#d7c4a7;font-size:10px;height:43px}.outline:hover{background:#d7bb8b11}
.questions{display:grid;grid-template-columns:1fr 1.4fr;gap:85px;padding-top:60px;padding-bottom:80px}.questions h2{font-size:27px;margin-top:19px}.questions>div>p:last-child{font-size:11px;color:#8992a8;margin-top:14px}.accordions{border-top:1px solid var(--line)}details>summary{list-style:none;cursor:pointer}details>summary::-webkit-details-marker{display:none}.accordions details{border-bottom:1px solid var(--line)}.accordions summary{padding-block:21px;display:flex;justify-content:space-between;align-items:center;gap:25px;font-size:12px;color:#b9c0cd;line-height:1.8}.accordions summary>span{font-size:18px;color:var(--gold);transition:transform .2s;flex-shrink:0}.accordions details[open] summary>span{transform:rotate(45deg)}.accordions details>p{font-size:11px;color:#8f9bb2;line-height:2;padding:0 25px 22px 0}.sources{border-top:1px solid var(--line)}.sources summary{padding:22px 0;display:flex;justify-content:space-between;gap:20px;font-size:10px;color:#8793aa;letter-spacing:1px}.sources summary>span:last-child{font-size:8px;color:#707a90}.sources i{font-style:normal;margin-left:20px}.source-content{font-size:10px;line-height:1.9;color:#7e8aa2;padding-bottom:20px}.source-content p+p{margin-top:12px}.source-content a{color:#b8aa92}.source-links{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin:25px 0}.footer{display:flex;justify-content:space-between;align-items:center;border-top:1px solid var(--line);padding-block:30px 40px;gap:20px}.footer .brand{font-size:13px;color:#c4c5c8}.footer p{font-size:10px;letter-spacing:2px;color:#667187}.back-top{font-size:9px;color:#a99a83}.noscript{padding:15px;background:#322b20;color:#ddd}.motion-paused *{animation-play-state:paused!important}.motion-paused{scroll-behavior:auto}
@media(min-width:1600px){.hero-art img{width:1400px;left:calc(50% - 170px);top:75px}.hero-content{padding-top:210px}.hero h1{font-size:108px}}
@media(max-width:1100px){.wrap{width:calc(100% - 72px)}.header{padding-inline:36px}.hero-art img{left:35%;width:1000px;top:100px;opacity:.63}.hero-stats{gap:26px}.hero h1{font-size:80px}.stage-detail{padding:28px}.stage-detail h3{font-size:23px}.stage-measure strong{font-size:39px}.planet-detail{grid-template-columns:150px 1fr 230px;gap:25px}.solar-overview{gap:28px;padding-left:125px}.solar-overview>p{max-width:45%}.earth-layout{gap:45px}.earth-copy h2{font-size:31px}.questions{gap:45px}.light-lab{gap:30px}}
@media(max-width:800px){:root{scroll-padding-top:30px}.wrap{width:calc(100% - 44px)}.header{padding-inline:22px;height:78px}.header .brand{font-size:15px}.header nav{position:static;transform:none;gap:20px;font-size:10px}.motion-label{display:none}.motion-toggle{width:30px;height:30px;justify-content:center;padding:0}.hero{min-height:840px;max-height:1100px}.hero-content{padding-top:177px}.hero h1{font-size:75px}.hero-art img{left:10%;top:50px;width:1000px;opacity:.58}.hero-art:after{background:linear-gradient(90deg,#07090fcc,transparent 100%),linear-gradient(0deg,#07090f,transparent 45%,#07090f44)}.hero-footer{display:block}.hero-stats{justify-content:space-between;margin-top:22px;gap:15px}.hero-stats strong{font-size:23px}.image-label{top:69%;right:6%}.section{padding-block:75px}.section-heading{gap:20px;align-items:start}.section-heading h2{font-size:28px}.section-heading>p{font-size:10px;max-width:230px;margin-top:35px}.journey-navigation{overflow-x:auto;grid-template-columns:repeat(7,minmax(114px,1fr));scrollbar-width:thin;scrollbar-color:#665849 transparent}.stage-tab{padding-bottom:18px}.explorer{grid-template-columns:1fr 1fr}.scene-wrap{min-height:480px}.scene-top,.scene-bottom{left:16px;right:16px;font-size:8px}.scene-bottom{flex-direction:column;gap:7px}.stage-detail{padding:25px}.stage-description{font-size:11px}.stage-detail h3{font-size:23px}.stage-measure strong{font-size:36px}.interlude{gap:20px;padding-block:30px}.interlude>div:nth-child(2)>p:last-child{font-size:17px}.interlude-note{font-size:9px}.interlude-symbol{font-size:28px}.solar-overview{padding-left:100px;gap:25px}.solar-overview>p{font-size:10px;max-width:none}.solar-caption{display:none}.planet-nav{grid-template-columns:repeat(8,100px);overflow-x:auto;scrollbar-width:thin;scrollbar-color:#665849 transparent}.planet-detail{grid-template-columns:130px 1fr;gap:25px;min-height:265px}.planet-facts{grid-column:1/-1;border-left:0;border-top:1px solid var(--line);padding:20px 0 0;flex-direction:row;justify-content:space-between}.planet-facts>div{flex-direction:column;align-items:start}.planet-copy>p{min-height:unset}.light-lab{padding:30px}.light-lab h2{font-size:19px}.light-copy>p:not(.eyebrow){font-size:10px;line-height:1.9}.light-copy select{min-width:190px}.earth-section{padding-top:90px}.earth-layout{gap:30px}.earth-copy h2{font-size:26px}.earth-copy>p:not(.eyebrow){font-size:11px}.earth-facts{gap:10px;flex-wrap:wrap}.earth-facts dd{font-size:20px}.earth-facts dt{font-size:7px}.earth-coordinate{font-size:7px;top:0;left:0}.earth-image-credit{font-size:7px;bottom:-45px}.earth-visual:after{inset:-15px}.questions{gap:35px;grid-template-columns:1fr 1.4fr}.questions h2{font-size:24px}.accordions summary{font-size:11px}.questions>.eyebrow,.eyebrow{font-size:9px}.source-links{grid-template-columns:repeat(2,1fr)}}
@media(max-width:560px){.header .brand small{font-size:6px}.header .brand{gap:7px;font-size:14px}.header .brand img{width:29px;height:29px}.header nav{gap:16px}.header nav a:last-child{display:none}.hero{height:930px;min-height:0;max-height:none}.hero-content{padding-top:178px}.hero h1{font-size:64px;letter-spacing:2px;line-height:1.32;margin-top:24px}.hero-content>.eyebrow{font-size:8px;letter-spacing:1.6px;gap:9px}.hero-english{font-size:11px;margin-top:19px;letter-spacing:0}.hero-description{font-size:12px;margin-top:26px;line-height:2}.hero-art img{left:-170px;top:187px;width:860px;transform:rotate(-24deg);opacity:.63}.hero-art:after{background:linear-gradient(90deg,#07090fc9,#07090f22 80%),linear-gradient(0deg,#07090f 4%,transparent 36%,transparent 72%,#07090f 92%)}.primary{font-size:11px;gap:27px;padding-inline:20px;height:45px;margin-top:28px}.hero-secondary{display:block;margin:22px 0 0;font-size:10px}.image-label{top:auto;bottom:221px;right:25px;font-size:9px}.image-label small{font-size:7px}.hero-ring{opacity:.6}.ring-one{width:750px;height:750px;left:-160px;top:80px}.ring-two{width:850px;height:850px;left:-210px;top:30px}.hero-footer{bottom:30px;padding-top:21px}.hero-stats{gap:12px;margin-top:22px}.hero-stats>div{flex:1}.hero-stats strong{font-size:23px;letter-spacing:0}.hero-stats strong span{display:block;margin:6px 0 0;font-size:9px;letter-spacing:1px}.hero-stats small{font-size:7px;letter-spacing:0;line-height:1.7;max-width:105px}.scroll-hint{font-size:9px;gap:12px}.section{padding-block:65px}.section-heading{display:block;margin-bottom:28px}.section-heading h2{font-size:27px;margin-top:14px}.section-heading>p{max-width:none;margin-top:16px;font-size:11px}.section-heading>p br{display:none}.journey-navigation{margin-bottom:18px;grid-template-columns:repeat(7,111px)}.stage-tab span{font-size:9px;margin-bottom:8px}.stage-tab strong{font-size:11px}.explorer{display:block}.scene-wrap{min-height:310px;height:310px}.scene-top{top:18px}.scene-marker{font-size:9px;letter-spacing:.5px;bottom:47px}.scene-bottom{flex-direction:row;font-size:7px;bottom:17px;letter-spacing:0}.stage-detail{border-left:0;border-top:1px solid var(--line);padding:27px 25px 28px;min-height:360px}.stage-detail h3{font-size:25px}.stage-measure{margin-block:19px 15px}.stage-measure strong{font-size:42px}.stage-description{font-size:12px;line-height:1.9}.fact-note{font-size:11px}.stage-detail>.text-link{margin-top:17px}.stage-arrows>span{font-size:8px;margin-left:5px;max-width:140px;line-height:1.6}.play-button{font-size:9px;letter-spacing:0;gap:4px}.journey-controls{margin-top:17px}.icon-button{width:29px;height:29px}.stage-arrows{gap:5px}.range-label{font-size:7px;letter-spacing:0}.interlude{padding-block:29px;flex-wrap:wrap;gap:15px}.interlude-symbol{font-size:25px}.interlude>div:nth-child(2)>p:last-child{font-size:18px;line-height:1.8;margin-top:7px}.interlude-note{margin:4px 0 0 40px;font-size:10px;line-height:1.9}.interlude-note br:nth-child(2){display:none}.interlude .eyebrow{font-size:7px;letter-spacing:1.8px}.solar-overview{height:auto;min-height:107px;padding:20px 16px 20px 80px;gap:17px}.sun-fragment{width:112px;height:112px;left:-58px;top:-1px}.solar-overview>div{min-width:68px}.solar-overview>div strong{font-size:17px}.solar-overview>div span{font-size:7px;line-height:1.8;max-width:70px}.solar-overview>p{font-size:9px;line-height:1.9}.solar-overview>p br{display:none}.planet-nav{padding-top:20px;grid-template-columns:repeat(8,88px)}.planet-nav:before{top:74px}.planet-visual{height:95px}.planet-orb{scale:.87}.planet-label{font-size:11px}.planet-en{font-size:7px}.planet-button{padding-bottom:21px}.planet-detail{grid-template-columns:92px 1fr;gap:22px;padding-block:28px;min-height:302px}.planet-identity{gap:10px}.planet-identity h3{font-size:25px;letter-spacing:2px}.planet-order{font-size:8px}.planet-identity .eyebrow{font-size:8px;letter-spacing:1.2px}.planet-copy>p{font-size:11px;line-height:1.95}.planet-facts{gap:10px;padding-top:18px}.planet-facts dd{font-size:17px}.planet-facts dt{font-size:8px}.planet-facts>div{gap:9px}.solar-footnote{display:block;font-size:8px;line-height:1.9}.solar-footnote a{display:block;margin-top:8px}.light-lab{padding:29px 25px;grid-template-columns:1fr;gap:38px}.light-lab h2{font-size:21px}.light-copy>p:not(.eyebrow){font-size:11px}.light-copy select{width:100%;margin-top:18px}#light-time{font-size:39px}.light-result{padding-bottom:5px}.light-path{margin-bottom:21px}.earth-section{padding:85px 0 50px}.earth-layout{grid-template-columns:1fr;gap:92px}.earth-visual{width:83%;margin-inline:auto}.earth-coordinate{top:10px;left:-22px}.earth-copy h2{font-size:34px;margin-top:20px;line-height:1.7}.earth-copy>p:not(.eyebrow){font-size:12px}.earth-facts{margin:28px 0;gap:12px}.earth-facts dt{font-size:8px}.earth-facts dd{font-size:25px}.earth-image-credit{font-size:7px;bottom:-41px}.earth-visual:after{inset:-15px}.questions{grid-template-columns:1fr;gap:30px;padding-block:30px 55px}.questions h2{font-size:26px;margin-top:12px}.accordions summary{font-size:12px;padding-block:19px;gap:18px}.accordions details>p{font-size:11px}.sources summary{font-size:9px;letter-spacing:.3px;gap:10px}.sources summary>span:last-child{font-size:7px;letter-spacing:0}.sources i{margin-left:6px}.source-links{grid-template-columns:1fr;gap:12px}.footer{flex-wrap:wrap;padding-block:24px 30px;gap:18px}.footer .brand{font-size:12px}.footer p{font-size:8px;letter-spacing:1px;order:3;flex-basis:100%;text-align:center}.back-top{font-size:9px}.footer .brand img{width:24px;height:24px}}
@media(prefers-reduced-motion:reduce){:root{scroll-behavior:auto}*,*:before,*:after{animation:none!important;transition:none!important}}