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.bk-page-foot{bottom:14px;left:22px;right:22px}}.book-experience.book-layout-mobile .bk-page-body{padding:24px 22px 42px}.book-experience.book-layout-mobile .bk-page-head{margin-bottom:14px}.book-experience.book-layout-mobile .bk-page-foot{bottom:14px;left:22px;right:22px}.book-experience.book-layout-mobile .bk-feature-image{height:110px}.book-experience.book-layout-mobile .bk-h1{font-size:23px}.book-experience.book-layout-mobile .bk-display{font-size:28px}.book-experience.book-layout-mobile .bk-contact-row,.book-experience.book-layout-mobile .bk-colophon-row{grid-template-columns:66px 1fr}.book-experience .bk-book.bk-open.bk-shell-gpu .bk-pile--left{visibility:visible}@media print{.book-experience .bk-link-layer{display:none!important}}.book-experience:focus{outline:none}.book-experience[data-immersive] .bk-stage{height:100dvh;min-height:0}.book-experience[data-immersive] .bk-actions,.book-experience[data-immersive] .bk-bottombar,.book-experience[data-immersive] .bk-topbar,.bk-preparing{display:none}.bk-stage[data-shell-pending] .bk-preparing{text-align:center;color:#6e6e73;pointer-events:none;font:14px/1.6 system-ui,sans-serif;display:block;position:absolute;inset:46% 0 auto}.bk-stage[data-shell-pending] .bk-rig,.bk-stage[data-shell-pending] .bk-actions{visibility:hidden}@media print{.bk-stage[data-shell-pending] .bk-rig{visibility:visible}.bk-stage[data-shell-pending] .bk-preparing{display:none}}:root,.book-experience{--bk-cover-ink:#eee7db;--bk-cover-muted:#c7c3b9;--bk-cover-accent:#b69c6b}.book-experience .bk-cover-title{color:var(--bk-cover-ink);letter-spacing:.04em;font-family:Noto Serif SC,Songti SC,SimSun,serif;font-weight:600}.book-experience .bk-cover-sub{letter-spacing:.14em;font-family:Noto Serif SC,Songti SC,SimSun,serif;font-weight:400}.book-experience .bk-cover-sub,.book-experience .bk-cover-foot{color:var(--bk-cover-muted)}.book-experience .bk-cover-ribbon{background-color:var(--bk-cover-accent)}.book-experience .bk-cover-frame{border-color:var(--bk-cover-accent)}@supports (color:color-mix(in lab, red, red)){.book-experience .bk-cover-frame{border-color:color-mix(in srgb, var(--bk-cover-accent) 32%, transparent)}}