:root{color-scheme:dark;--bg:#08090b;--ink:#dce0e3;--muted:#8b959e;--line:#c5d0d329;--ease:cubic-bezier(.22,1,.36,1);--core-x:22vw;--core-y:50vh;--core-r:46vw;font-synthesis:none}*{box-sizing:border-box}html,body{margin:0;background:var(--bg);color:var(--ink);height:100%;overflow:hidden}body{font-family:Consolas,'SFMono-Regular','Microsoft YaHei',monospace}button,a{-webkit-tap-highlight-color:transparent}button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}a{color:inherit;text-decoration:none}button,a{transition:color .3s,opacity .3s,background .35s,transform .5s var(--ease)}button:focus-visible,a:focus-visible{outline:1px solid #d5e5e0;outline-offset:5px}svg{fill:none;stroke:currentColor;stroke-width:1}button svg{width:18px;height:18px}.observatory{height:100svh;height:100dvh;min-height:480px;position:relative;overflow:hidden;isolation:isolate}.scene{position:absolute;inset:0;z-index:-4}.scene iframe{width:100%;height:100%;border:0;opacity:0;transition:opacity 1.4s}.ready .scene iframe{opacity:1}.core-shade{position:absolute;inset:0;z-index:-2;pointer-events:none;background:radial-gradient(circle var(--core-r) at var(--core-x) var(--core-y),#08090be3 0%,#08090bd9 38%,#08090b91 62%,transparent 95%);opacity:.91;transition:opacity 1.2s}.reading .core-shade{opacity:1}.edge-shade{position:absolute;inset:0;z-index:-1;pointer-events:none;background:linear-gradient(180deg,#08090b65,transparent 16%,transparent 84%,#08090b80),linear-gradient(90deg,#08090b55,transparent 30%)}.observatory::after{content:'';position:absolute;inset:0;pointer-events:none;z-index:20;opacity:.15;background:repeating-linear-gradient(0deg,transparent 0 3px,#08090b 3px 4px)}
.traces{position:absolute;inset:0;width:100%;height:100%;pointer-events:none;z-index:0;overflow:visible}.traces path{stroke-width:.65;vector-effect:non-scaling-stroke}#inner-track{stroke:#d8e3e028;stroke-dasharray:1 6}#read-progress{stroke:#c6d8d3a0;stroke-width:1;transition:opacity .65s;opacity:0}#connection{stroke:url(#trace-fade);stroke-width:.7;transition:opacity .65s;opacity:0}#connection-dot{fill:#dbe6e0;stroke:none;opacity:0;transition:opacity .65s}.reading #connection,.reading #connection-dot,.reading #read-progress{opacity:1}#scale-ticks{stroke:#d8e3e04d;stroke-width:.7}.origin{position:absolute;left:32px;top:25px;display:flex;gap:13px;align-items:center;padding:0;font-size:11px;letter-spacing:1.2px;text-align:left;z-index:5}.origin>svg{width:38px;height:38px;stroke-width:.7;color:#d5ddde}.origin small{display:block;font-size:6px;letter-spacing:1.5px;color:#7e888f;margin-top:7px}.origin:hover{color:white}.origin:hover svg{transform:rotate(90deg);transition:transform .8s var(--ease)}.field-note{position:absolute;top:35px;right:34px;font-size:7px;letter-spacing:1.3px;display:flex;flex-direction:column;gap:8px;text-align:right;color:#7a858f;pointer-events:none}.field-note span:first-child{color:#aab4bc}
.orbit-nav{position:absolute;inset:0;pointer-events:none;z-index:4;outline:none}.orbit-file{position:absolute;left:0;top:0;width:var(--node-w,156px);height:54px;display:flex;align-items:center;text-align:left;gap:10px;padding:9px 10px;transform-origin:center;pointer-events:auto;opacity:0;visibility:hidden;transition:opacity .45s,color .3s,background .5s;touch-action:manipulation;color:#a0aaaf;will-change:transform;isolation:isolate}.orbit-file.located{opacity:1;visibility:visible}.orbit-file::before{content:'';position:absolute;inset:0;z-index:-1;background:linear-gradient(90deg,#08090be6,#08090b98 70%,transparent);opacity:.72;transition:opacity .4s}.orbit-file::after{content:'';position:absolute;left:0;top:8px;bottom:8px;width:1px;background:#d3dfdf33;box-shadow:0 0 8px transparent;transition:background .35s,box-shadow .35s}.orbit-file:hover,.orbit-file[aria-current=true]{color:#f3f5f3}.orbit-file:hover::after,.orbit-file[aria-current=true]::after{background:#dbe6df;box-shadow:0 0 9px #d7e6de80}.orbit-file:hover::before,.orbit-file[aria-current=true]::before{opacity:.96}.orbit-number{font-size:24px;font-weight:300;letter-spacing:-2px;color:#afbbbf}.orbit-file[aria-current=true] .orbit-number{color:#f3f5ed;text-shadow:0 0 12px #d8e1dd55}.orbit-name{display:block;font-size:10px;letter-spacing:.2px;line-height:1.45}.orbit-detail{display:block;font-size:5.5px;letter-spacing:1px;color:#7f8b94;margin-top:4px}.orbit-pointer{position:absolute;right:-9px;top:24px;width:3px;height:3px;background:#d6e2de;opacity:0;transition:opacity .3s}.orbit-file[aria-current=true] .orbit-pointer{opacity:1}
.core{position:absolute;left:9%;width:43%;z-index:2}.intro{top:50%;transform:translateY(-46%);transition:opacity .65s,transform .9s var(--ease),visibility 0s}.eyebrow{font-size:9px;letter-spacing:2.2px;font-weight:400;color:#a5b6ba;line-height:1.8;margin:0 0 24px}.cross{margin-right:10px;color:#cbdcd5;font-size:16px}.intro h1{font-size:clamp(64px,7.9vw,118px);font-weight:300;line-height:.96;letter-spacing:-.075em;margin:0 0 24px;color:#e0e5e5;font-family:Consolas,'Lucida Console',monospace;filter:drop-shadow(0 0 16px #bdcfd222)}.intro h1>span{display:block}.name-dot{color:#a8c2b7}.nameplate{display:flex;align-items:center;gap:22px;color:#acb8bf;font-size:10px;letter-spacing:3px;margin-bottom:26px}.nameplate span:last-child{font-size:7px;letter-spacing:2px;color:#788890}.nameplate i{width:55px;height:1px;background:var(--line)}.intro-copy{font-size:12px;font-family:'Microsoft YaHei',sans-serif;font-weight:300;line-height:2;color:#9eabad;max-width:330px;margin:0 0 28px}.enter{display:flex;gap:12px;align-items:center;font-size:11px;letter-spacing:1px;padding:0;min-height:44px}.orbit-glyph{border:1px solid #c7d7d249;border-radius:50%;width:36px;height:36px;display:grid;place-items:center;font-size:18px;transition:transform .6s var(--ease),border-color .4s}.enter:hover .orbit-glyph{transform:rotate(45deg);border-color:#dce9e3}.enter-number{font-size:7px;color:#718187;margin-left:12px;letter-spacing:1px}.intro-hint{font-size:8px;color:#6e7c83;letter-spacing:1px;margin-top:24px}.reading .intro{opacity:0;visibility:hidden;transform:translate(-30px,-46%);transition:opacity .45s,transform .8s var(--ease),visibility 0s .8s}
.reader{top:20%;bottom:14%;display:flex;flex-direction:column;opacity:0;visibility:hidden;transform:translateX(24px);transition:opacity .6s,transform .8s var(--ease),visibility 0s .8s;max-width:620px}.reading .reader{opacity:1;visibility:visible;transform:none;transition:opacity .65s .14s,transform .95s var(--ease),visibility 0s}.reader-crown{display:flex;align-items:center;justify-content:space-between;padding:0 0 22px;flex-shrink:0}.record{display:flex;gap:15px;align-items:center}.record>span:first-child{font-size:48px;font-weight:300;line-height:.85;letter-spacing:-5px;color:#ccd7d6}.record>span:last-child{display:flex;flex-direction:column;gap:7px;margin-top:4px}.record b{font-size:8px;letter-spacing:1.6px;font-weight:400;color:#a5b8b8}.record small{font-size:7px;letter-spacing:1px;color:#6f8189}.close{font-size:9px;display:flex;gap:12px;align-items:center;min-height:44px;color:#82949c;padding:0}.close:hover{color:#e5f1eb}.close svg{width:14px;height:14px;stroke-width:.8}.reader-scroll{flex:1;min-height:0;overflow-y:auto;overscroll-behavior:contain;scrollbar-width:none;outline:none;padding-right:20px;mask-image:linear-gradient(180deg,#000 0%,#000 calc(100% - 22px),transparent);-webkit-mask-image:linear-gradient(180deg,#000 0%,#000 calc(100% - 22px),transparent)}.reader-scroll::-webkit-scrollbar{display:none}.reader-inner{padding:7px 0 30px;transition:opacity .22s,transform .35s var(--ease)}.copy-changing .reader-inner{opacity:0;transform:translateX(-10px)}.reader .eyebrow{font-size:7px;letter-spacing:2px;margin:0 0 12px;color:#7d939a}.reader h2{font-family:'Microsoft YaHei',Arial,sans-serif;font-weight:300;font-size:clamp(23px,2.4vw,35px);line-height:1.5;margin:0 0 27px;letter-spacing:.02em;color:#e0e7e5}.reading-caption{display:flex;align-items:center;gap:20px;font-size:7px;color:#6d858e;letter-spacing:1.2px;padding-top:14px;flex-shrink:0}.reading-caption span:nth-child(2){margin-left:auto;font-size:9px;color:#b2c2c2}.scroll-glyph{font-size:14px}.reader-end{display:flex;align-items:center;justify-content:space-between;gap:20px;color:#6b818a;font-size:7px;letter-spacing:1px;margin-top:35px;padding-top:16px;border-top:1px dashed #aac5c02b}.reader-end b{font-weight:400}.reader-end button{font-size:10px;color:#a7bdbd;display:flex;gap:16px;align-items:center;min-height:44px;padding:0}.reader-end button:hover{color:white}
.operator{position:absolute;bottom:31px;left:34px;display:flex;align-items:center;gap:22px;z-index:5}.languages{display:flex;align-items:center;gap:10px;font-size:8px}.languages span{color:#40535c}.languages button{font-size:9px;min-height:32px;min-width:20px;padding:0;color:#637b85}.languages button[aria-pressed=true]{color:#d4e2df}.operator-line{width:30px;height:1px;background:#bdd4d52b}.operator-hint{font-size:7px;letter-spacing:.4px;color:#5d7885}.view-controls{position:absolute;right:35px;bottom:28px;display:flex;align-items:center;gap:10px;z-index:8;color:#54707b}.view-controls button{display:flex;gap:8px;align-items:center;min-height:38px;font-size:8px;letter-spacing:1px;padding:0;color:#96aaae}.view-controls button:hover,.view-controls button[aria-pressed=true]{color:#ebf4e8}.view-controls>span{font-size:10px}.view-controls svg{width:12px;height:12px}.view-controls #pause-icon{font-size:13px;width:12px}.credit{position:absolute;right:35px;bottom:83px;font-size:6px;letter-spacing:1.4px;color:#637780;z-index:5}.credit span{font-size:10px;margin-left:5px}.credit:hover{color:#b3c9c7}.mobile-selector{display:none}.origin,.field-note,.orbit-nav,.operator,.credit,.traces,.mobile-selector{transition:opacity .6s,visibility 0s}.immersed .chrome{opacity:0!important;visibility:hidden!important;transition:opacity .6s,visibility 0s .6s!important}.immersed .core-shade,.immersed .edge-shade{opacity:0;transition:opacity 1.1s}.load-note{position:absolute;left:9%;bottom:15%;font-size:9px;color:#a9bfbe;letter-spacing:2px;pointer-events:none}.toast{position:absolute;left:9%;bottom:9%;font-size:10px;color:#d6e7da;letter-spacing:1px;opacity:0;transform:translateX(-10px);transition:opacity .3s,transform .5s;pointer-events:none;z-index:10}.toast.visible{opacity:1;transform:none}.skip{position:absolute;left:20px;top:0;transform:translateY(-150%);padding:12px;z-index:40;background:#12181b;font-size:12px}.skip:focus{transform:translateY(0)}.no-script{padding:30px;position:absolute;top:20%;background:#08090b}
.content-article{--content-ink:#c7d5d4;--content-muted:#9caeaf;--content-rule:#b2cac025;--content-accent:#b0c6be;font-family:'Microsoft YaHei',Arial,sans-serif;font-size:15px;line-height:2}.content-lead{font-size:1em;line-height:2}.content-tags{gap:18px;margin-bottom:22px}.content-tag{border:0;padding:0;color:#728c95;font-size:10px;letter-spacing:1px}.content-tag::before{content:'·';color:#a9c0b9;margin-right:6px}.content-button{background:transparent;border:0;border-bottom:1px solid #b3ccc244;padding:10px 0;gap:24px;min-height:44px;font-family:Consolas,'Microsoft YaHei',monospace;font-size:11px}.content-button:hover,.content-button:focus-visible{background:transparent;border-color:#cbe2d3}.content-actions{gap:24px}.content-resources{column-gap:24px;row-gap:5px}.content-points li{border-top:1px solid #a9c2bd20;font-size:13px;padding:16px 0;gap:8px}.content-section{border-top:1px solid #a9c2bd20;margin-top:30px;padding-top:22px}.content-heading{font-size:11px;letter-spacing:1.6px;color:#b3ccc4}.content-tool{font-size:13px}.content-email{font-size:17px}.content-event{font-size:13px;gap:15px}.content-year{font-family:Consolas,monospace}.content-subheading{font-size:14px}.content-points,.content-timeline{line-height:1.9}
@media(min-width:1500px){.core{left:12%;width:38%}.intro-copy{max-width:400px;font-size:14px}.intro .eyebrow{font-size:11px}.reader{top:18%;bottom:14%}.reader h2{font-size:36px}.content-article{font-size:16px}.orbit-name{font-size:12px}.orbit-detail{font-size:7px}.orbit-file{height:60px}.origin{left:42px;top:32px}.operator{left:42px;bottom:35px}}
@media(max-width:1100px) and (min-width:701px){.core{left:8%;width:45%}.reader{top:19%;bottom:14%}.reader h2{font-size:26px}.intro h1{font-size:79px}.intro-copy{font-size:12px}.orbit-name{font-size:9px}.orbit-number{font-size:22px}.orbit-file{gap:8px;padding:8px}.reader-scroll{padding-right:14px}.content-article{font-size:14px}.origin{left:26px}.operator{left:28px}.operator-hint{display:none}}
@media(max-width:700px){.observatory{min-height:480px}.origin{left:22px;top:19px;gap:10px;font-size:9px;letter-spacing:1px}.origin>svg{width:31px;height:31px}.origin small{font-size:5px;letter-spacing:1px;margin-top:5px}.field-note{right:22px;top:26px;font-size:6px;letter-spacing:.5px}.field-note span:last-child{display:none}.core-shade{background:radial-gradient(ellipse 84vw 80vh at 50% 84%,#08090bf2 0%,#08090be3 42%,#08090b55 77%,transparent 100%)}.core{left:9%;width:82%}.intro{top:43%;transform:none}.intro h1{font-size:65px;line-height:.92;letter-spacing:-.075em;margin-bottom:18px}.intro h1>span{display:inline}.intro h1>span:first-child::after{content:' ';white-space:pre}.intro h1>span:nth-child(2){display:block}.intro .eyebrow{font-size:8px;letter-spacing:1px;margin-bottom:18px}.nameplate{font-size:9px;gap:18px;margin-bottom:18px}.intro-copy{font-size:11px;line-height:1.9;margin-bottom:16px;max-width:300px}.intro-hint{display:none}.enter{font-size:10px;gap:10px}.orbit-glyph{width:30px;height:30px;font-size:15px}.enter-number{font-size:6px;margin-left:8px}.reading .intro{transform:translateX(-20px)}.orbit-file{width:34px!important;height:44px;display:block;padding:0;text-align:center;gap:0;transform-origin:center}.orbit-file::before{inset:4px -1px;background:linear-gradient(180deg,#08090baa,#08090bdd,transparent);opacity:.7}.orbit-file::after{left:50%;top:-4px;bottom:auto;width:1px;height:5px}.orbit-number{display:block;font-size:15px;letter-spacing:-1px;line-height:1.4}.orbit-name{font-size:5px;letter-spacing:.4px}.orbit-detail{display:none}.orbit-pointer{right:50%;top:auto;bottom:2px;width:2px;height:2px}.reader{top:39%;bottom:12%;max-width:none}.reader-crown{padding-bottom:18px}.record>span:first-child{font-size:37px;letter-spacing:-4px}.record{gap:13px}.record>span:last-child{gap:5px}.record b{font-size:7px}.record small{font-size:6px}.close{font-size:8px;gap:8px}.reader-scroll{padding-right:8px}.reader h2{font-size:23px;line-height:1.5;margin-bottom:21px}.reader .eyebrow{font-size:6px;margin-bottom:9px}.reader-inner{padding-top:3px}.content-article{font-size:14px;line-height:2}.content-lead{line-height:2}.reading-caption{font-size:6px;padding-top:8px}.reading-caption span:nth-child(2){font-size:8px}.content-tags{gap:12px;margin-bottom:17px}.content-tag{font-size:9px}.content-actions{gap:16px}.content-event{font-size:12px}.content-resources{grid-template-columns:1fr}.content-email{font-size:16px}.content-points li{font-size:12px}.mobile-selector{display:flex;position:absolute;top:31%;left:22%;right:22%;align-items:center;justify-content:space-between;z-index:5;color:#8a9ea3}.mobile-selector button{width:44px;height:44px;font-size:15px;color:#afc4c2}.mobile-selector span{font-size:7px;letter-spacing:1px;white-space:nowrap}.operator{bottom:21px;left:24px;gap:10px}.operator-line,.operator-hint{display:none}.languages{gap:8px}.languages button{font-size:8px;min-width:20px;min-height:40px}.languages span{font-size:7px}.view-controls{right:23px;bottom:22px;gap:8px}.view-controls button{font-size:7px;letter-spacing:0;min-height:38px;gap:6px}.view-controls #pause-icon{font-size:11px;width:9px}.view-controls svg{width:10px;height:10px}.credit{display:none}.toast{bottom:10%;left:9%;font-size:9px}.load-note{left:9%;bottom:13%;font-size:8px}#scale-ticks{opacity:.55}}
@media(max-height:720px) and (max-width:700px){.intro{top:41%}.intro h1{font-size:50px;margin-bottom:12px}.intro .eyebrow{margin-bottom:12px}.nameplate{margin-bottom:12px}.intro-copy{font-size:10px;margin-bottom:10px;line-height:1.8}.reader{top:39%;bottom:13%}.reader-crown{padding-bottom:9px}.record>span:first-child{font-size:30px}.reader h2{font-size:21px}.mobile-selector{top:30%}.content-article{font-size:14px}.operator{bottom:12px}.view-controls{bottom:13px}}
.core-shade::after{content:"";position:absolute;inset:0;background:radial-gradient(circle var(--core-r) at var(--core-x) var(--core-y),#08090bce 0%,#08090bb0 35%,#08090b70 60%,transparent 96%);opacity:0;transition:opacity .9s var(--ease)}.reading .core-shade::after{opacity:1}.orbit-text{min-width:0}.orbit-name{color:#b8c5c6}.orbit-file[aria-current=true] .orbit-name{color:#eff5ed}.mobile-selector span{overflow:hidden;text-overflow:ellipsis;text-align:center}.content-article{font-size:15px}
@media(min-width:701px) and (max-width:1100px){.orbit-name{font-size:10px}}
@media(max-width:700px){.core-shade::after{background:radial-gradient(ellipse 84vw 80vh at 50% 84%,#08090be5 0%,#08090bc0 42%,#08090b55 77%,transparent 100%)}.content-article{font-size:15px}.intro-copy{font-size:12px}.mobile-selector{left:16%;right:16%}.mobile-selector span{font-size:7px}.content-event,.content-points li{font-size:14px}}
@media(max-width:700px){.reader{top:var(--content-top,39vh)}.intro{top:calc(var(--content-top,39vh) + 22px)}.mobile-selector{top:calc(var(--content-top,39vh) - 56px)}}
@media(max-height:720px) and (max-width:700px){.intro{top:var(--content-top,41vh)}.intro-copy{font-size:11px;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}.intro h1{font-size:37px;line-height:1}.intro h1>span,.intro h1>span:nth-child(2){display:inline}}
@media(prefers-reduced-motion:reduce){*,*::before,*::after{transition-duration:.12s!important;transition-delay:0s!important;scroll-behavior:auto!important}.intro h1{filter:none}}

/* Labels are ink on the moving canvas plates; the rotor owns their pose. */
.orbit-file{background:transparent!important;transition:color .3s;filter:drop-shadow(0 1px 3px #000);text-shadow:0 1px 3px #08090b}
.orbit-file.located{opacity:var(--node-alpha,1)}
.orbit-file::before,.orbit-file::after,.orbit-pointer{display:none}
.orbit-file[aria-current=true]{text-shadow:0 0 13px #d7e2df55}
.orbit-number{display:inline-block;font-variant-numeric:tabular-nums}
.orbit-file:focus-visible{outline:1px solid #dce8e080;outline-offset:3px}
.reader{transition:opacity .5s,transform .8s var(--ease),visibility 0s .8s}
.reading .reader{transition:opacity .6s .08s,transform .9s var(--ease),visibility 0s}
@media(min-width:701px){.mobile-selector{display:flex;position:absolute;left:91%;top:calc(50% - 52px);width:40px;flex-direction:column;gap:16px;z-index:5}.mobile-selector span{display:none}.mobile-selector button{width:40px;height:40px;transform:rotate(90deg);color:#8b9da0;font-size:18px}.mobile-selector button:hover{color:#f0f5f1;text-shadow:0 0 12px #e5eee5}}
@media(max-width:700px){.orbit-number{display:block}}