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span{background:var(--braid-china);width:2rem;height:2rem;font-family:var(--serif);border-radius:50%;place-items:center;display:grid}.braided-lane--west .braided-lane__label span{background:var(--braid-west)}.braided-lane__label b{font-size:var(--type-caption)}.braided-lane__rail{background:var(--braid-china);border-radius:999px;height:.55rem;position:absolute;left:0;right:0;box-shadow:0 0 0 2px #d35a3d26}.braided-lane--china .braided-lane__rail{bottom:0}.braided-lane--west .braided-lane__rail{background:var(--braid-west);top:0;box-shadow:0 0 0 2px #6f9fb426}.braided-lane>ol,.braided-confluences{margin:0;padding:0;list-style:none}.braided-era{z-index:3;left:var(--braid-left);width:var(--braid-width);min-width:14rem;position:absolute}.braided-lane--china .braided-era{top:calc(var(--braid-lane) * 5.8rem)}.braided-lane--west .braided-era{top:calc(2.3rem + var(--braid-lane) * 5.8rem)}.braided-era>a{background:#221d19eb;border:1px solid #ffffff2e;min-height:5rem;padding:.85rem 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var(--braid-lane) * 5.8rem - 5rem);top:100%}.braided-lane--west .braided-era__stem{height:calc(2.3rem + var(--braid-lane) * 5.8rem);background:color-mix(in srgb, var(--braid-west) 65%, transparent);bottom:100%}.braided-confluences>li{z-index:8;top:27rem;left:var(--braid-left);width:16rem;min-height:8.5rem;position:absolute;transform:translate(-50%)}.braided-confluences>li>span{z-index:-1;background:linear-gradient(var(--braid-china), var(--braid-meet) 42%, var(--braid-meet) 58%, var(--braid-west));width:2px;position:absolute;top:-7.7rem;bottom:-7.7rem;left:50%}.braided-confluences>li>span:before,.braided-confluences>li>span:after{content:"";border:3px solid #101817;border-radius:50%;width:.8rem;height:.8rem;position:absolute;left:50%;transform:translate(-50%)}.braided-confluences>li>span:before{background:var(--braid-china);top:-.4rem}.braided-confluences>li>span:after{background:var(--braid-west);bottom:-.4rem}.braided-confluences article{background:#172521;border:1px solid #76a99ab3;padding:1rem 1.1rem;box-shadow:0 1rem 2.5rem #0000003d}.braided-confluences time{color:var(--braid-meet);font-size:.78rem;font-weight:700}.braided-confluences h3{font-family:var(--serif);margin:.45rem 0;font-size:1.1rem;font-weight:600}.braided-confluences p{color:#f5f0e6b8;margin:0;font-size:.82rem;line-height:1.55}.braided-confluences a{color:#9bc8bb;align-items:center;min-height:40px;margin-top:.35rem;font-size:.78rem;font-weight:600;display:inline-flex}.braided-explorer__hint{color:#f5f0e6a6;width:min(100% - clamp(2.5rem,8vw,9rem),96rem);font-size:var(--type-caption);margin:1.5rem auto 0;line-height:1.6}.world-timeline-next{grid-template-columns:minmax(0,1fr) minmax(25rem,.48fr);align-items:end;gap:clamp(3rem,7vw,7.5rem);padding:clamp(6rem,11vw,11rem) clamp(1.25rem,4vw,4.5rem);display:grid}.world-timeline-next-copy>p{font-size:var(--type-caption)}.world-timeline-next-copy h2{max-inline-size:14ic;font-size:var(--type-section-title);line-height:1.14}.world-timeline-next-copy>span{max-width:46rem;color:var(--archive-muted);font-size:var(--type-body);margin-top:2rem;line-height:1.7;display:block}.world-timeline-next>.world-timeline-next-cta{border-top:1px solid var(--archive-line);border-bottom:1px solid var(--archive-line);align-content:space-between;gap:.75rem;width:100%;max-width:none;min-height:10rem;margin:0;padding:1.35rem 0;display:grid}.world-timeline-next-cta small{color:var(--archive-china);font-size:var(--type-caption)}.world-timeline-next-cta b{font-family:var(--serif);white-space:nowrap;font-size:clamp(2.65rem,3.6vw,4.15rem);font-weight:500;line-height:1.08}.world-timeline-next-cta>span{font-size:var(--type-body);justify-content:space-between;display:flex}.world-timeline-next-cta i{font-style:normal;transition:transform .18s}.world-timeline-next-cta:hover i{transform:translate(.5rem)}.world-timeline-method{border-top:1px solid var(--archive-line);background:var(--archive-paper-bright);color:var(--archive-ink);grid-template-columns:minmax(0,.8fr) minmax(20rem,1.2fr);gap:clamp(3rem,9vw,10rem);padding:clamp(5rem,9vw,9rem) clamp(1.25rem,4vw,4.5rem);display:grid}.world-timeline-method>div:first-child>p{color:var(--archive-confluence);font-size:var(--type-caption);letter-spacing:.13em}.world-timeline-method h2{max-inline-size:12ic;font-family:var(--serif);font-size:var(--type-section-title);margin:0;font-weight:500;line-height:1.16}.world-timeline-method>div:last-child{gap:1.5rem;display:grid}.world-timeline-method>div:last-child p{max-width:50rem;color:var(--archive-muted);font-size:var(--type-body);margin:0;line-height:1.75}.era-portal-hero{grid-template-columns:minmax(0,1.25fr) minmax(17rem,.5fr);align-content:end;gap:clamp(3rem,8vw,9rem);min-height:min(50rem,88svh);padding-top:9rem;padding-bottom:clamp(4rem,7vw,7rem)}.era-portal-hero-copy>p:first-child{font-size:clamp(1rem,.95rem + .2vw,1.125rem)}.era-portal-hero h1{max-inline-size:13ic;font-size:var(--type-page-title);line-height:1.02}.era-portal-hero-copy>p:last-child{max-width:53rem;font-size:var(--type-lead);line-height:1.72}.era-portal-hero-stats dt{font-size:var(--type-caption)}.era-portal-hero-stats dd{font-size:clamp(2rem,3vw,4rem)}.era-portal-index>p,.era-portal-hall-heading>p:first-child{font-size:var(--type-caption)}.era-portal-index a{min-height:68px}.era-portal-index b{font-size:var(--type-lead)}.era-portal-index small{font-size:var(--type-caption)}.era-portal-hall-heading h2{font-size:var(--type-section-title);line-height:1.14}.era-portal-hall-heading>p:last-child{max-width:57rem;font-size:var(--type-body);line-height:1.75}.era-runway{--runway-accent:var(--archive-china);--runway-accent-deep:#7e291d;--runway-surface:#e9e1d4;--runway-card:#faf6ed;--runway-ink:var(--archive-ink);--runway-muted:#6d655b;--runway-line:#17161233;--runway-shadow:#3c231824;background:var(--runway-surface);color:var(--runway-ink);padding:clamp(6rem,9vw,10rem) 0 clamp(4.5rem,7vw,7rem);position:relative;overflow:clip}.era-runway--west{--runway-accent:#6d9db2;--runway-accent-deep:#263f4b;--runway-surface:#142229;--runway-card:#1b2d35;--runway-ink:#f2ede3;--runway-muted:#f2ede3ad;--runway-line:#f2ede333;--runway-shadow:#0000004d}.era-runway__section-number{color:color-mix(in srgb, var(--runway-accent) 13%, transparent);font-family:var(--serif);pointer-events:none;font-size:clamp(8rem,18vw,19rem);font-weight:600;line-height:.75;position:absolute;top:clamp(1.5rem,3vw,3.5rem);right:clamp(1.25rem,4vw,4.5rem)}.era-runway__heading,.era-runway__controls,.era-runway__progress,.era-runway__hint{width:min(100% - clamp(2.5rem,8vw,9rem),96rem);margin-inline:auto}.era-runway__heading{z-index:2;grid-template-columns:minmax(0,1fr) minmax(18rem,.45fr);align-items:end;gap:clamp(2.5rem,8vw,9rem);margin-bottom:clamp(2.5rem,5vw,4.5rem);display:grid;position:relative}.era-runway__heading-copy>p:first-child{color:var(--runway-accent);font-size:var(--type-caption);letter-spacing:.14em;margin:0 0 1rem;font-weight:700}.era-runway__heading h2{max-inline-size:13ic;font-family:var(--serif);font-size:var(--type-section-title);letter-spacing:-.045em;margin:0;font-weight:500;line-height:1.1}.era-runway__heading-copy>p:last-child{max-width:55rem;color:var(--runway-muted);font-size:var(--type-body);margin:1.75rem 0 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button:focus-visible{border-color:var(--runway-accent);background:var(--runway-accent);color:#fff}.era-runway__range{color:var(--runway-muted);font-size:var(--type-caption);grid-template-columns:auto minmax(8rem,1fr);align-items:center;gap:1rem;padding-inline:clamp(.5rem,2vw,1.5rem);display:grid}.era-runway__range input{width:100%;accent-color:var(--runway-accent)}.era-runway__progress{z-index:3;background:var(--runway-line);height:3px;margin-top:1.25rem;position:relative;overflow:hidden}.era-runway__progress span{width:var(--era-runway-progress);background:var(--runway-accent);height:100%;display:block}.era-runway__viewport{z-index:1;width:100%;max-inline-size:100%;cursor:grab;overscroll-behavior-inline:contain;scroll-behavior:smooth;scroll-snap-type:x proximity;scrollbar-color:var(--runway-accent) color-mix(in srgb, var(--runway-ink) 10%, transparent);touch-action:pan-x pan-y;min-width:0;margin-top:1.5rem;position:relative;overflow:auto hidden}.era-runway__viewport.is-dragging{cursor:grabbing;scroll-snap-type:none;-webkit-user-select:none;user-select:none}.era-runway__track{align-items:flex-start;width:max-content;min-width:100%;min-height:53rem;padding:4.5rem clamp(2.5rem,5vw,5rem) 2rem;display:flex;position:relative}.era-runway__route{z-index:0;pointer-events:none;width:calc(100% - 4rem);height:45rem;position:absolute;top:4.5rem;left:2rem;overflow:visible}.era-runway__route path{fill:none;stroke-linecap:round;stroke-linejoin:round;vector-effect:non-scaling-stroke}.era-runway__route-edge{stroke:color-mix(in srgb, var(--runway-accent-deep) 80%, #111);stroke-width:148px;opacity:.96}.era-runway__route-lane{stroke:var(--runway-accent);stroke-width:132px;opacity:.96}.era-runway__route-centre{stroke:#ffffffa6;stroke-width:2px;stroke-dasharray:7 12}.era-runway__track-band{z-index:4;color:var(--runway-muted);font-size:var(--type-caption);letter-spacing:.12em;pointer-events:none;grid-template-columns:auto minmax(8rem,1fr) auto;align-items:center;gap:1.25rem;font-weight:700;display:grid;position:absolute;top:1.35rem;left:clamp(3rem,6vw,6rem);right:clamp(3rem,6vw,6rem)}.era-runway__track-band i{background:var(--runway-line);height:1px}.era-runway__eras{z-index:2;margin:0;padding:0;list-style:none;display:flex;position:relative}.era-runway__eras>li{scroll-snap-align:center;flex:none;width:clamp(22rem,25vw,26rem);min-height:47rem;padding-inline:clamp(.55rem,1vw,1rem);position:relative}.era-runway__milepost{z-index:4;top:calc(clamp(0rem, var(--era-y), 17rem) + 30rem);border:.3rem solid var(--runway-accent);background:var(--runway-card);width:2.75rem;height:2.75rem;color:var(--runway-ink);pointer-events:none;border-radius:50%;place-items:center;font-size:.72rem;font-weight:700;display:grid;position:absolute;left:50%;transform:translate(-50%,-50%);box-shadow:0 0 0 1px #ffffff94}.era-runway__card{margin-top:clamp(0rem, var(--era-y), 17rem);color:inherit;-webkit-user-drag:none;display:block}.era-runway__card article{border:1px solid var(--runway-line);background:color-mix(in srgb, var(--runway-card) 94%, transparent);min-height:31rem;box-shadow:0 1.5rem 4rem var(--runway-shadow);-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);flex-direction:column;padding:clamp(1.4rem,2vw,2rem);transition:transform .22s,border-color .22s,box-shadow .22s;display:flex}.era-runway__card:hover article,.era-runway__card:focus-visible article,.era-runway__eras>li.is-active .era-runway__card article{border-color:var(--runway-accent);box-shadow:0 1.8rem 4.5rem var(--runway-shadow), 0 0 0 1px var(--runway-accent);transform:translateY(-.65rem)}.era-runway__card-meta{min-height:3rem;color:var(--runway-muted);font-size:var(--type-caption);justify-content:space-between;gap:1rem;line-height:1.45;display:flex}.era-runway__card-meta>span{color:var(--runway-accent);font-weight:700}.era-runway__card-meta time{text-align:right;white-space:nowrap;font-variant-numeric:tabular-nums}.era-runway__card 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