@charset "UTF-8";
:root{--paper:#f7f8fa;--ink:#202226;--muted:#777b86;--line:#dfe1e6;--accent:#253bff;--accent-rgb:37,59,255;--sans:"Segoe UI","Microsoft YaHei UI","Microsoft YaHei",sans-serif;--mono:"Consolas","SFMono-Regular",monospace}
*{box-sizing:border-box}html{font-size:16px}body{margin:0;background:var(--paper);color:var(--ink);font-family:var(--sans);-webkit-font-smoothing:antialiased;min-width:320px;overflow-x:hidden}button,a{-webkit-tap-highlight-color:transparent}button{font:inherit;color:inherit;cursor:pointer}button:focus-visible,a:focus-visible,canvas:focus-visible{outline:2px solid var(--accent);outline-offset:5px}button{border:0}a{color:inherit;text-decoration:none}svg{width:24px;height:24px;fill:none;stroke:currentColor;stroke-width:1.5;stroke-linecap:round;stroke-linejoin:round}.icon-library{position:absolute;width:0;height:0;overflow:hidden}.header{height:105px;display:flex;align-items:center;justify-content:space-between;margin:0 4.3%;border-bottom:1px solid var(--line);position:relative;z-index:5}.brand{display:flex;gap:14px;align-items:center}.brand-mark{display:grid;grid-template-columns:12px 12px;gap:3px;transform:rotate(-12deg)}.brand-mark i{display:block;width:12px;height:12px;background:var(--accent);border-radius:50%}.brand-mark i:nth-child(2),.brand-mark i:nth-child(3){transform:scale(.73)}.brand-name{font-weight:600;letter-spacing:.1em;font-size:18px;line-height:1.5}.brand-name>span{display:block;font-family:var(--mono);font-size:12px;letter-spacing:.08em;font-weight:400}.header-right{display:flex;align-items:center;gap:28px}.header-note{font-size:14px;color:#696e77;letter-spacing:.12em}.about-button{height:32px;width:32px;border:1px solid #cfd2d8;border-radius:50%;background:none;font-family:Georgia,serif;font-size:18px;transition:background .2s,transform .2s}.about-button:hover{background:#fff;transform:rotate(12deg)}.playground{height:calc(100svh - 259px);min-height:570px;max-height:1050px;position:relative;isolation:isolate}#universe{position:absolute;inset:0;width:100%;height:100%;z-index:1;touch-action:none;cursor:grab}#universe:active{cursor:grabbing}.intro{position:absolute;left:8.4%;top:13.5%;z-index:2;pointer-events:none}.eyebrow{font:12px var(--mono);letter-spacing:.12em;display:flex;gap:10px;align-items:center;margin:0 0 31px;color:#626975}.tiny-line{display:inline-block;width:21px;height:1px;background:#777e87}h1{font-size:clamp(40px,4.45vw,72px);line-height:1.37;letter-spacing:-.055em;font-weight:400;margin:0 0 24px}.title-last{position:relative;white-space:nowrap}.title-last>svg{position:absolute;left:0;bottom:-10px;width:100%;height:15px;stroke:var(--accent);stroke-width:1.3;opacity:.9}.intro-copy{font-size:16px;line-height:1.9;letter-spacing:.04em;color:#747984;margin:0}.scatter-button{pointer-events:auto;background:none;border-bottom:1px solid #aeb2bc;padding:0 0 8px;margin-top:34px;font-size:14px;display:flex;gap:27px;align-items:center;transition:color .2s,border-color .2s}.scatter-button span{font-size:22px;line-height:1;transition:transform .3s}.scatter-button:hover{color:var(--accent);border-color:var(--accent)}.scatter-button:hover span{transform:translate(3px,-3px)}.exhibit-index{position:absolute;top:45px;right:4.3%;display:flex;align-items:center;gap:12px;font:12px var(--mono);color:#8b9099}.exhibit-index>span:first-child{color:var(--ink)}.index-line{height:1px;width:35px;background:#c0c4cc}.vertical-note{position:absolute;right:4.3%;top:36%;writing-mode:vertical-rl;font:12px var(--mono);letter-spacing:.14em;color:#9196a0}.ground-shadow{position:absolute;z-index:0;left:62%;top:80%;transform:translateX(-50%);width:32%;height:4%;border-radius:100%;background:radial-gradient(ellipse,rgba(25,35,90,.09),transparent 67%);filter:blur(10px);pointer-events:none}.canvas-caption{position:absolute;left:62%;bottom:10.5%;transform:translateX(-50%);display:flex;align-items:center;gap:10px;white-space:nowrap;font-size:13px;letter-spacing:.04em;color:#7a808b;pointer-events:none;z-index:2}.caption-dot{width:5px;height:5px;background:var(--accent);border-radius:50%;opacity:.65}.moment{position:absolute;left:8.4%;bottom:5%;pointer-events:none;z-index:2}.moment-label{font-size:12px;color:#8b8f98;letter-spacing:.08em}.moment>div{margin-top:10px;font-size:17px}.moment-dash{font-size:14px;color:#afb3bc;margin:0 12px}#shape-english{font:12px var(--mono);letter-spacing:.08em;color:#767d89}.moment p{font-size:13px;color:#878d97;margin:9px 0 0;line-height:1.8}.coordinates{position:absolute;right:4.3%;bottom:6%;font:12px/1.9 var(--mono);color:#727985;pointer-events:none}.coordinates>span:first-child{color:var(--accent);margin-right:6px;font-size:17px}.coordinates-sub{margin-left:23px;color:#a0a4ac}.bottom-area{position:relative;z-index:4;padding-top:9px}.dock{display:flex;align-items:center;width:max-content;max-width:94%;gap:15px;margin:0 auto;padding:9px;background:rgba(255,255,255,.88);border:1px solid rgba(211,215,226,.85);box-shadow:0 12px 35px -14px rgba(22,32,60,.19),0 2px 4px rgba(22,32,60,.02);border-radius:19px;backdrop-filter:blur(16px)}.modes{display:flex;gap:3px}.mode{display:flex;align-items:center;justify-content:center;gap:9px;padding:14px 17px;background:none;border-radius:12px;color:#767c88;transition:color .25s,background .25s,box-shadow .25s;min-height:48px}.mode svg{width:21px;height:21px}.mode span{font-size:14px}.mode small{font:12px var(--mono);align-self:flex-start;margin-top:0;opacity:.6}.mode:hover{color:var(--accent);background:#f5f6fb}.mode.active{background:var(--ink);color:white;box-shadow:0 3px 8px #00000010}.dock-divider{width:1px;height:25px;background:#e5e7ec;margin-left:0}.tools{display:flex;gap:1px}.tool{display:grid;place-items:center;width:42px;height:44px;border-radius:10px;background:none;color:#7a808b;transition:background .2s,color .2s}.tool:hover{background:#f0f2f7;color:var(--ink)}.tool[aria-pressed="true"]{color:var(--accent);background:rgba(var(--accent-rgb),.055)}.tool svg{width:19px;height:19px}.palette-swatch{width:17px;height:17px;background:var(--accent);border-radius:50%;box-shadow:0 0 0 4px rgba(var(--accent-rgb),.10)}footer{height:75px;margin:0 4.3%;display:flex;align-items:center;justify-content:space-between;color:#9297a0;font-size:12px}footer>span:first-child{font-family:var(--mono);letter-spacing:.1em}.footer-star{display:inline-block;color:#9297a0;margin-left:14px;font-size:20px;vertical-align:middle}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}.no-script{position:absolute;top:50%;left:50%;z-index:8;background:white;padding:20px;max-width:80%}dialog{border:1px solid #e1e4eb;border-radius:22px;background:#fafbfe;padding:48px;max-width:490px;width:calc(100% - 36px);color:var(--ink);box-shadow:0 35px 100px #111b3630}dialog::backdrop{background:#202b4f33;backdrop-filter:blur(9px)}.dialog-close{position:absolute;right:19px;top:14px;background:none;color:#787d87;font-size:30px;width:40px;height:40px}.dialog-eyebrow{font:12px var(--mono);letter-spacing:.13em;color:var(--accent)}dialog h2{font-size:30px;line-height:1.6;font-weight:400;letter-spacing:-.03em;margin:24px 0}dialog p{font-size:16px;line-height:1.9;color:#747b88}.key-guide{display:grid;grid-template-columns:1fr 1fr;gap:16px;font-size:12px;color:#747b88;margin:27px 0;padding-top:25px;border-top:1px solid #e0e3eb}kbd{display:inline-block;font:12px var(--mono);padding:3px 5px;background:#edf0f6;border-radius:4px;margin-right:3px;color:#3f495e}dialog .privacy-note{font-size:12px;margin-bottom:0;color:#9298a3}body[data-mode="2"] .ground-shadow{opacity:.4}
@media(min-width:1700px){.intro{left:11%;top:18%}.moment{left:11%}.playground{min-height:650px}.canvas-caption{bottom:11%}}
@media(max-width:1050px){.header{height:90px}.playground{height:calc(100svh - 244px);min-height:530px}.intro{left:6%;top:14%}h1{font-size:46px}.intro-copy{font-size:16px}.moment{left:6%}.coordinates{display:none}.canvas-caption{left:65%;font-size:12px}.vertical-note{right:3%}.mode{padding:13px 14px}.dock{gap:10px}.tools{gap:0}.tool{width:38px}}
@media(max-width:700px){.header{height:81px;margin:0 6%}.brand{gap:10px}.brand-name{font-size:16px}.brand-name>span{font-size:12px}.header-note{display:none}.brand-mark{grid-template-columns:10px 10px;gap:2px}.brand-mark i{width:10px;height:10px}.header-right{gap:0}.about-button{width:30px;height:30px}.playground{height:calc(100svh - 259px);min-height:410px;max-height:850px}.intro{left:8%;top:28px}.eyebrow{font-size:12px;margin-bottom:17px;gap:7px}h1{font-size:37px;line-height:1.3;margin-bottom:13px;letter-spacing:-.045em}h1 br{display:none}.title-last>svg{bottom:-7px}.intro-copy{font-size:14px;line-height:1.8}.intro-copy br{display:none}.scatter-button{position:absolute;top:137px;margin:0;padding-bottom:6px;font-size:12px;gap:13px}.scatter-button span{font-size:19px}.exhibit-index{right:7%;top:178px;font-size:12px;gap:8px}.index-line{width:24px}.vertical-note{display:none}.ground-shadow{left:50%;top:81%;width:65%}.canvas-caption{left:50%;bottom:13%;font-size:12px;gap:7px}.moment{left:8%;bottom:10px}.moment-label{display:none}.moment>div{font-size:14px;margin-top:0}.moment p{font-size:12px;line-height:1.6;margin-top:5px}.moment-dash{margin:0 9px}#shape-english{font-size:12px}.bottom-area{padding-top:16px}.dock{gap:0;flex-wrap:wrap;justify-content:center;width:calc(100% - 40px);max-width:390px;padding:7px 7px 3px;border-radius:19px}.modes{width:100%;gap:4px}.mode{flex:1;padding:12px 7px;gap:8px;min-height:43px}.mode small{display:none}.mode svg{width:18px;height:18px}.dock-divider{height:1px;width:calc(100% - 18px);margin:6px 0 0;background:#edf0f5}.tools{width:100%;justify-content:space-evenly;padding:2px 9px 0}.tool{width:45px;height:35px}.tool svg{width:17px;height:17px}.palette-swatch{width:14px;height:14px}.canvas-caption{white-space:normal;width:max-content;max-width:90%;text-align:center}footer{height:63px;margin:0 6%;font-size:12px}footer>span:first-child{font-size:12px;letter-spacing:.04em}.footer-star{font-size:16px;margin-left:5px}dialog{padding:35px 27px}dialog h2{font-size:27px}.key-guide{gap:15px 8px}}
@media(max-width:370px){h1{font-size:32px}.intro-copy{font-size:14px}footer>span:first-child{max-width:115px;line-height:1.5}.mode{gap:6px}.playground{min-height:410px}}
@media(prefers-reduced-motion:reduce){*,*::before,*::after{scroll-behavior:auto!important;transition:none!important;animation:none!important}}


@media(max-width:700px){#universe{touch-action:pan-y pinch-zoom}}