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var(--rd-safe-b))}:root[data-theme=sepia]{--rd-page:#f4eee3;--rd-void:#dfd6c6;--rd-ink:#2b2620;--rd-ink-dim:#6a6152;--rd-accent:#1848c9;--rd-figure-bg:#faf6ef;--rd-rule:#d3c8b4}:root[data-theme=dark]{color-scheme:dark;--rd-page:#1b1e24;--rd-void:#0a0b0d;--rd-ink:#dde1e6;--rd-ink-dim:#868d96;--rd-accent:#7ba4ff;--rd-figure-bg:#e8eaec;--rd-rule:#292d33}*{box-sizing:border-box}body,html{height:100%;margin:0}body{background:var(--rd-void);color:var(--rd-ink);font-family:var(--rd-ui);-webkit-text-size-adjust:100%;inset:0;overflow:hidden;overscroll-behavior:none;position:fixed;width:100%}button{background:none;border:0;color:inherit;cursor:pointer;font:inherit}button:focus-visible{outline:2px solid var(--rd-accent);outline-offset:2px}input,select,textarea{font-size:16px}#reader{height:100vh;height:100dvh;left:0;overflow:hidden;position:fixed;right:0;top:0}.rd_top{align-items:center;background:var(--rd-void);display:flex;gap:8px;height:var(--rd-top-h);inset:0 0 auto 0;padding:var(--rd-safe-t) 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.rd_bottom{opacity:0;pointer-events:none;transform:translateY(100%)}.rd_stage{align-items:stretch;background:var(--rd-void);bottom:var(--rd-foot-h);display:flex;gap:8px;left:calc(var(--rd-rail) + var(--rd-safe-l));padding:0 8px;position:absolute;right:var(--rd-safe-r);top:var(--rd-top-h)}.rd_nav{align-items:center;border-radius:8px;color:var(--rd-ink-dim);display:flex;flex:0 0 44px;justify-content:center;opacity:.8;transition:opacity .15s ease,background-color .15s ease,color .15s ease}.rd_nav svg{height:26px;width:26px}@media (hover:hover) and (pointer:fine){.rd_nav:hover{background:var(--rd-page);color:var(--rd-accent);opacity:1}}.rd_nav:disabled{background:none;color:var(--rd-ink-dim);cursor:default;opacity:.15}#reader[data-bars="0"] .rd_nav{opacity:0;pointer-events:none}#reader[data-mode=scroll] .rd_nav{display:none}.rd_area{background:var(--rd-page);box-shadow:0 0 0 1px var(--rd-rule),0 1px 3px rgba(0,0,0,.04);display:flex;flex:1 1 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.rd_title{margin-left:var(--rd-toc-w)}.rd_toc_item{border-left:2px solid transparent;color:var(--rd-ink);display:block;font-size:13px;letter-spacing:-.01em;line-height:1.5;padding:7px 16px 7px 14px;text-decoration:none}@media (hover:hover) and (pointer:fine){.rd_toc_item:hover{background:var(--rd-page)}}.rd_toc_item.lv1{border-top:1px solid var(--rd-rule);color:var(--rd-ink);font-size:13px;font-weight:700;letter-spacing:-.01em;margin-top:12px;padding-top:14px}.rd_toc_item.lv1:first-child{border-top:0;margin-top:0;padding-top:8px}.rd_toc_item.lv2{font-weight:600;padding-left:16px}.rd_toc_item.lv3{color:var(--rd-ink-dim);font-size:12px;padding-left:30px}.rd_toc_item[aria-current=true]{background:var(--rd-page);border-left-color:var(--rd-accent);color:var(--rd-accent)}.rd_scrim{background:rgba(0,0,0,.32);inset:0;position:absolute;z-index:45}.rd_scrim[hidden]{display:none}.rd_sheet{background:var(--rd-void);border-top:1px solid var(--rd-rule);box-shadow:0 -4px 24px 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strong{color:var(--rd-ink);display:block;font-size:15px;font-weight:600;margin-bottom:8px}.rd_retry{background:var(--rd-accent);border-radius:8px;color:#fff;display:inline-block;font-size:14px;font-weight:600;line-height:1;margin-top:20px;min-height:44px;padding:12px 24px}@media (max-width:900px){.rd_area,.rd_area[data-cols="2"]{max-width:none}.rd_stage{gap:0;padding:0}.rd_area,.rd_area[data-cols="2"]{box-shadow:none;padding:24px 20px}.rd_nav{bottom:0;flex:0 0 auto;position:absolute;top:0;width:44px;z-index:15}.rd_nav,.rd_nav:active,.rd_nav:hover{background:none}.rd_nav svg{height:20px;width:20px}.rd_nav_prev{justify-content:flex-start;left:0;padding-left:1px}.rd_nav_next{justify-content:flex-end;padding-right:1px;right:0}.rd_toc{box-shadow:2px 0 24px rgba(0,0,0,.2);inset:var(--rd-top-h) auto 0 var(--rd-safe-l);padding-bottom:calc(24px + var(--rd-safe-b));width:min(300px,84vw)}#reader[data-toc=open] .rd_bottom,#reader[data-toc=open] .rd_stage{left:0}#reader[data-toc=open] 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