.subpage-scroll{--section-enter-time:460ms;--section-image-time:560ms;--section-ease:cubic-bezier(.22,1,.36,1);--section-distance:20px}.subpage-scroll main .motion-word{animation:none}.subpage-scroll .spm-target{opacity:1;translate:none;transition:opacity var(--section-enter-time) ease var(--section-delay,0s),translate var(--section-enter-time) var(--section-ease) var(--section-delay,0s)}.subpage-scroll .spm-target[data-scroll-state=waiting]{opacity:0;translate:0 var(--section-distance)}.subpage-scroll .spm-target[data-scroll-kind=media],.subpage-scroll .spm-target[data-scroll-kind=photo]{transition-duration:var(--section-image-time);transition-property:opacity,translate,-webkit-clip-path;transition-property:opacity,translate,clip-path;transition-property:opacity,translate,clip-path,-webkit-clip-path;-webkit-clip-path:inset(0 0 0 0);clip-path:inset(0 0 0 0)}.subpage-scroll .spm-target[data-scroll-kind=media][data-scroll-state=waiting],.subpage-scroll .spm-target[data-scroll-kind=photo][data-scroll-state=waiting]{-webkit-clip-path:inset(0 0 7% 0);clip-path:inset(0 0 7% 0)}.subpage-scroll .spm-target[data-scroll-kind=prose]{--section-distance:8px}.subpage-scroll .spm-target[data-scroll-enter=true]{animation:subpage-enter var(--section-enter-time) var(--section-ease) var(--section-delay,0s) both}.subpage-scroll .spm-target[data-scroll-instant]{animation:none;transition:none}.subpage-scroll .spm-target[data-scroll-settled]{-webkit-clip-path:none;clip-path:none}.subpage-scroll .spm-chapters a{position:relative;transition:color .22s ease}.subpage-scroll .spm-chapters a:after{content:"";position:absolute;inset:auto 0 0;height:2px;background:var(--c-ledger);scale:0 1;transform-origin:left;transition:scale .25s var(--section-ease);pointer-events:none}.subpage-scroll .spm-chapters a[aria-current=location]{color:var(--c-ledger)}.subpage-scroll .spm-chapters a[aria-current=location]:after{scale:1 1}.spm-reading-progress{position:fixed;z-index:45;inset:0 0 auto;height:2px;background:var(--c-muted-teal);scale:var(--article-progress,0) 1;transform-origin:left;pointer-events:none}@media (min-width:801px){.subpage-scroll .spm-chapters{position:-webkit-sticky;position:sticky;top:72px;z-index:9;background:var(--paper);border-bottom:1px solid var(--rule);transition:top .3s var(--section-ease)}.subpage-scroll:has(.site-header.is-hidden:not(:focus-within)) .spm-chapters{top:0}}@media (max-width:800px){.subpage-scroll{--section-enter-time:380ms;--section-image-time:440ms;--section-distance:12px}.subpage-scroll .spm-target[data-scroll-kind=media],.subpage-scroll .spm-target[data-scroll-kind=photo]{-webkit-clip-path:none;clip-path:none}}@keyframes subpage-enter{0%{opacity:0;translate:0 var(--section-distance)}to{opacity:1;translate:0 0}}html[data-motion=reduced] .spm-target{opacity:1!important;translate:none!important;-webkit-clip-path:none!important;clip-path:none!important;animation:none!important;transition:none!important}@media (prefers-reduced-motion:reduce){.subpage-scroll{--section-enter-time:0ms;--section-image-time:0ms;--section-distance:0px}.subpage-scroll .spm-target{opacity:1!important;translate:none!important;-webkit-clip-path:none!important;clip-path:none!important;animation:none!important;transition:none!important}}