:root{--blue-950: #08294f;--blue-900: #0d3d75;--blue-800: #155394;--blue-700: #1f68b2;--blue-500: #63a6e6;--blue-200: #cce4f8;--blue-100: #eaf5fd;--paper: #fffdf8;--paper-edge: #d7e1e8;--ink: #143450;--muted: #68839c;--white: #ffffff;--red-thread: #e25249}*{box-sizing:border-box}html{min-width:320px;background:var(--blue-100)}body{margin:0;color:var(--ink);background:var(--blue-100);font-family:Inter,ui-sans-serif,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;text-rendering:optimizeLegibility}button{color:inherit;font:inherit;-webkit-tap-highlight-color:transparent}.site-shell{min-height:100svh;overflow-x:clip;overflow-y:visible;background:radial-gradient(circle at 76% 28%,rgba(255,255,255,.98),transparent 31rem),linear-gradient(138deg,#f9fdff,#eaf5fd 52%,#d7ebfa)}.site-header{position:relative;z-index:30;height:72px;display:grid;grid-template-columns:1fr auto 1fr;align-items:center;padding:0 max(28px,env(safe-area-inset-left));border-bottom:1px solid rgba(13,61,117,.12);background:#f9fdffc2;backdrop-filter:blur(18px)}.wordmark{justify-self:start;appearance:none;border:0;padding:6px 0;background:transparent;color:var(--blue-900);font-size:15px;font-weight:900;letter-spacing:.18em;cursor:pointer}.header-title{color:var(--muted);font-family:Georgia,Times New Roman,serif;font-size:15px;font-style:italic}.header-edition{justify-self:end;color:var(--muted);font-size:9px;font-weight:900;letter-spacing:.14em;text-transform:uppercase}.wordmark:focus-visible,.closed-book:focus-visible,.open-book-button:focus-visible,.back-to-cover:focus-visible,.index-toggle:focus-visible,.index-close:focus-visible,.index-entry:focus-visible,.page-corner:focus-visible,.reader-controls button:focus-visible,.spread-dots button:focus-visible{outline:3px solid var(--blue-500);outline-offset:4px}.cover-scene{position:relative;min-height:calc(100svh - 72px);display:grid;grid-template-columns:minmax(0,1fr);grid-template-rows:auto auto;justify-items:center;align-content:center;gap:18px;overflow:hidden;padding:18px max(18px,3vw);text-align:center;isolation:isolate}.cover-intro{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);clip-path:inset(50%);white-space:nowrap}.cover-intro>p:first-child{margin:0 0 14px;color:var(--blue-700);font-size:clamp(10px,.9vw,13px);font-weight:900;letter-spacing:.16em;text-transform:uppercase}.cover-intro h1{margin:0;color:var(--blue-950);font-family:Georgia,Times New Roman,serif;font-size:clamp(40px,5vw,70px);font-weight:500;line-height:.98;letter-spacing:-.045em}.cover-subtitle{max-width:41em;margin:16px auto 0;color:var(--muted);font-size:clamp(13px,1.15vw,17px);line-height:1.52}.closed-book{position:relative;z-index:5;justify-self:center;width:auto;height:min(calc(100svh - 208px),849px);aspect-ratio:.72;appearance:none;border:0;padding:0;background:transparent;cursor:pointer;transform:none;filter:drop-shadow(0 28px 30px rgba(22,68,108,.23));transition:filter .18s ease}.closed-book:after{content:"";position:absolute;z-index:-1;left:9%;right:3%;bottom:-8%;height:8%;border-radius:50%;background:#092f5538;filter:blur(16px)}.closed-book:hover{filter:drop-shadow(0 34px 32px rgba(22,68,108,.27))}.book-cover-hinge{position:absolute;z-index:4;inset:0 3% 3% 5%;border-radius:7px 16px 16px 7px;transform:none}.book-cover-face,.book-cover-inside{position:absolute;inset:0;overflow:hidden;border:1px solid rgba(255,255,255,.34);border-radius:inherit;backface-visibility:hidden}.book-cover-face{z-index:2;display:flex;flex-direction:column;align-items:flex-start;padding:9% 9% 8% 13%;color:var(--white);text-align:left;background:radial-gradient(circle at 74% 22%,rgba(99,166,230,.45),transparent 23%),linear-gradient(145deg,#155a9b,#0d3d75 52%,#08294f);box-shadow:inset 16px 0 28px #03183157,inset 0 0 0 2px #ffffff0f;transform:translateZ(1px)}.book-cover-inside{z-index:1;background:radial-gradient(circle at 72% 24%,rgba(99,166,230,.22),transparent 24%),linear-gradient(145deg,#eff7fc,#fffdf8 68%);box-shadow:inset 18px 0 28px #0d3d751f,inset 0 0 0 8px #0d3d750b;transform:rotateY(180deg) translateZ(1px)}.book-cover-inside:before{content:"";position:absolute;inset:10%;border:1px solid rgba(13,61,117,.13);border-radius:50% 48% 52% 46%}.book-cover-inside i{position:absolute;top:50%;left:50%;display:block;border:1px solid rgba(21,83,148,.32);border-radius:50%;transform:translate(-50%,-50%)}.book-cover-inside i:nth-child(1){width:37%;aspect-ratio:1}.book-cover-inside i:nth-child(2){width:19%;aspect-ratio:1}.book-cover-inside i:nth-child(3){width:5px;height:5px;border:0;background:var(--blue-700)}.book-cover-face:before{content:"";position:absolute;inset:0;opacity:.22;background-image:linear-gradient(rgba(255,255,255,.08) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.06) 1px,transparent 1px);background-size:23px 23px}.cover-series,.cover-edition,.book-cover-face strong,.cover-symbol{position:relative;z-index:2}.cover-series{font-size:clamp(8px,.8vw,12px);font-weight:800;letter-spacing:.14em}.cover-symbol{width:70%;height:25%;display:grid;place-items:center;margin:14% auto 10%}.cover-symbol i{position:absolute;display:block;border:1px solid rgba(255,255,255,.78);border-radius:50%}.cover-symbol i:nth-child(1){width:72%;aspect-ratio:1}.cover-symbol i:nth-child(2){width:48%;aspect-ratio:1}.cover-symbol i:nth-child(3){width:6px;height:6px;border:0;background:var(--white);box-shadow:0 0 0 10px #ffffff1f}.book-cover-face strong{margin-top:auto;font-family:Georgia,Times New Roman,serif;font-size:clamp(30px,3.2vw,49px);font-weight:500;line-height:.98;letter-spacing:-.04em}.cover-edition{margin-top:auto;font-size:clamp(8px,.75vw,11px);font-weight:700;letter-spacing:.11em;text-transform:uppercase}.book-spine{position:absolute;z-index:5;top:1.2%;bottom:4.6%;left:1.4%;width:8%;border-radius:8px 2px 2px 8px;background:linear-gradient(90deg,#062240,#0a3769 55%,#155a9b);box-shadow:inset -5px 0 7px #ffffff1f}.book-page-edge{position:absolute;z-index:2;inset:2.4% 0 0 7%;border-radius:5px 18px 18px 6px;background:repeating-linear-gradient(to bottom,#f7fbfd 0 3px,#ccdce7 4px,#f7fbfd 5px);box-shadow:9px 8px #bed0dd}.book-page-edge-one{transform:translate(2.5%,2.1%)}.book-page-edge-two{transform:translate(1.3%,1.1%)}.open-book-button{position:relative;z-index:8;justify-self:center;min-width:206px;display:flex;align-items:center;justify-content:space-between;gap:28px;appearance:none;border:1px solid rgba(13,61,117,.18);border-radius:999px;padding:14px 18px 14px 22px;color:var(--blue-900);background:#ffffffc7;font-size:13px;font-weight:800;cursor:pointer;box-shadow:0 12px 28px #0d3d751a;transition:transform .18s ease,opacity .22s ease,box-shadow .18s ease,background .18s ease}.open-book-button:hover{transform:translateY(-3px);background:var(--white);box-shadow:0 18px 34px #0d3d7526}.open-book-button span:last-child{width:32px;height:32px;display:grid;place-items:center;border-radius:50%;color:var(--white);background:var(--blue-900)}.reader-scene{min-height:calc(100svh - 72px);padding:clamp(18px,2.2vw,34px) 18px max(24px,env(safe-area-inset-bottom))}.reader-layout{width:min(100%,1540px);display:grid;grid-template-columns:minmax(232px,272px) minmax(0,1fr);gap:clamp(18px,2vw,32px);align-items:start;margin:0 auto}.reader-main{min-width:0;display:flex;flex-direction:column;align-items:center}.reader-meta{width:min(100%,1240px);display:grid;grid-template-columns:1fr auto 1fr;align-items:center;margin-bottom:14px;color:var(--muted);font-size:10px;font-weight:800;letter-spacing:.11em;text-transform:uppercase}.reader-meta p{margin:0}.reader-edition{justify-self:center}.reader-progress{justify-self:end}.reader-meta-actions{display:flex;align-items:center;gap:16px}.back-to-cover{width:fit-content;display:inline-flex;align-items:center;gap:8px;appearance:none;border:0;padding:6px 0;color:var(--blue-900);background:transparent;font-size:10px;font-weight:900;letter-spacing:.1em;text-transform:uppercase;cursor:pointer}.index-toggle{display:none;align-items:center;gap:7px;appearance:none;border:0;padding:6px 0;color:var(--blue-900);background:transparent;font-size:10px;font-weight:900;letter-spacing:.1em;text-transform:uppercase;cursor:pointer}.book-index{position:sticky;top:18px;height:min(calc(100svh - 112px),790px);min-height:580px;display:flex;flex-direction:column;overflow:hidden;border:1px solid rgba(13,61,117,.12);border-radius:20px;background:#ffffffb8;box-shadow:0 22px 54px #0d3d751c;backdrop-filter:blur(18px)}.index-heading{display:flex;align-items:flex-start;justify-content:space-between;padding:24px 22px 18px}.index-heading span,.index-footer span{display:block;color:var(--blue-700);font-size:8px;font-weight:900;letter-spacing:.15em;text-transform:uppercase}.index-heading h2{margin:7px 0 0;color:var(--blue-950);font-family:Georgia,Times New Roman,serif;font-size:29px;font-weight:500;letter-spacing:-.035em}.index-close{width:34px;height:34px;display:none;place-items:center;appearance:none;border:1px solid rgba(13,61,117,.14);border-radius:50%;padding:0;color:var(--blue-900);background:var(--white);font-size:22px;line-height:1;cursor:pointer}.index-progress{height:3px;margin:0 22px 10px;overflow:hidden;border-radius:999px;background:var(--blue-200)}.index-progress span{height:100%;display:block;border-radius:inherit;background:var(--blue-700);transition:width .42s cubic-bezier(.22,1,.36,1)}.index-list{flex:1;display:grid;align-content:start;gap:3px;overflow-y:auto;margin:0;padding:6px 10px 14px;list-style:none;scrollbar-width:thin;scrollbar-color:var(--blue-200) transparent}.index-entry{width:100%;min-height:64px;display:grid;grid-template-columns:30px minmax(0,1fr) auto;gap:9px;align-items:start;appearance:none;border:0;border-radius:12px;padding:11px 10px;color:var(--ink);text-align:left;background:transparent;cursor:pointer;transition:color .18s ease,background .18s ease,transform .18s ease}.index-entry:not(:disabled):hover{color:var(--blue-900);background:#cce4f87a;transform:translate(3px)}.index-entry.active{color:var(--blue-950);background:var(--white);box-shadow:0 8px 20px #0d3d751a}.index-entry:disabled{cursor:wait}.index-number{padding-top:2px;color:var(--blue-500);font-family:Courier New,monospace;font-size:10px;font-weight:900}.index-entry.active .index-number{color:var(--red-thread)}.index-copy{min-width:0;display:block}.index-copy strong{display:block;overflow:hidden;color:inherit;font-family:Georgia,Times New Roman,serif;font-size:13px;font-weight:700;line-height:1.17;text-overflow:ellipsis;white-space:nowrap}.index-copy small{display:-webkit-box;overflow:hidden;margin-top:4px;color:var(--muted);font-size:8px;line-height:1.35;-webkit-box-orient:vertical;-webkit-line-clamp:2}.index-folio{padding-top:2px;color:#8aa0b4;font-size:8px;white-space:nowrap}.index-footer{display:flex;align-items:end;justify-content:space-between;padding:17px 22px 20px;border-top:1px solid rgba(13,61,117,.1);background:#eaf5fd85}.index-footer strong{color:var(--blue-900);font-family:Courier New,monospace;font-size:13px}.index-backdrop{display:none}.book-stage{position:relative;width:min(100%,calc((100svh - 208px)*1.46),1240px);aspect-ratio:1.46;container-type:inline-size;perspective:3200px;perspective-origin:50% 46%;touch-action:pan-y}.book-stage.is-turning{pointer-events:none}.book-shadow{position:absolute;z-index:0;left:4%;right:4%;bottom:-4.5%;height:12%;border-radius:50%;background:#14345047;filter:blur(24px)}.book-board{position:absolute;z-index:1;top:1.5%;bottom:-1.5%;width:50.6%;border:1px solid rgba(255,255,255,.24);background:var(--blue-900);box-shadow:0 16px 30px #0d3d752e}.book-board-left{right:50%;border-radius:18px 5px 7px 20px;transform:rotateY(1.6deg) translate(-2px);transform-origin:right center}.book-board-right{left:50%;border-radius:5px 18px 20px 7px;transform:rotateY(-1.6deg) translate(2px);transform-origin:left center}.book-spread{position:absolute;z-index:2;inset:.7% 1% 1.5%;display:flex;border-radius:15px;isolation:isolate;transform-style:preserve-3d}.paper-page{position:relative;width:50%;height:100%;overflow:hidden;color:var(--ink);background-color:var(--paper);background-image:radial-gradient(circle at 12% 14%,rgba(27,93,149,.035) 0 1px,transparent 1.5px),radial-gradient(circle at 78% 64%,rgba(34,64,89,.025) 0 1px,transparent 1.5px),linear-gradient(90deg,rgba(13,61,117,.018),transparent 16%,transparent 84%,rgba(13,61,117,.018));background-size:27px 27px,41px 41px,100% 100%}.page-content{width:100%;height:100%;display:flex;flex-direction:column;overflow:hidden;padding:clamp(28px,3.8cqw,48px) clamp(30px,4.2cqw,58px) clamp(48px,5cqw,68px)}.page-content>*{flex-shrink:0}.paper-page-left{border-radius:13px 2px 2px 13px;box-shadow:inset -24px 0 34px -28px #1434508f,inset 3px 0 #0d3d750a}.paper-page-right{border-radius:2px 13px 13px 2px;box-shadow:inset 24px 0 34px -28px #1434508f,inset -3px 0 #0d3d750a}.page-running-head,.page-folio{display:flex;align-items:center;justify-content:space-between;color:var(--muted);font-size:clamp(7px,.65cqw,10px);font-weight:800;letter-spacing:.12em;text-transform:uppercase}.page-running-head{padding-bottom:clamp(10px,1.35cqw,18px);border-bottom:1px solid rgba(13,61,117,.12)}.page-number-mark{margin-top:clamp(14px,1.7cqw,24px);color:var(--blue-500);font-family:Courier New,monospace;font-size:clamp(10px,1cqw,15px);font-weight:800}.page-kicker{margin:clamp(8px,.95cqw,13px) 0 0;color:var(--blue-700);font-size:clamp(8px,.78cqw,11px);font-weight:900;letter-spacing:.08em;line-height:1.35;text-transform:uppercase}.paper-page h2{max-width:12em;margin:clamp(8px,.95cqw,14px) 0 0;color:var(--blue-950);font-family:Georgia,Times New Roman,serif;font-size:clamp(22px,2.55cqw,38px);font-weight:500;line-height:.99;letter-spacing:-.035em}.title-rule{width:clamp(38px,4cqw,60px);height:3px;display:block;margin:clamp(12px,1.45cqw,20px) 0;background:var(--blue-500)}.page-body{display:grid;gap:clamp(8px,.9cqw,13px)}.page-body-layout.with-illustration{display:grid;grid-template-columns:minmax(0,1fr) clamp(92px,13cqw,160px);gap:clamp(14px,1.7cqw,24px);align-items:start}.page-illustration{width:100%;margin:0;overflow:hidden;border:1px solid rgba(13,61,117,.1);background:#f2ead9;box-shadow:0 8px 18px #14345014;transform:rotate(.55deg)}.page-illustration img{width:100%;aspect-ratio:9 / 16;display:block;object-fit:cover}.page-body p{margin:0;color:#2f4e67;font-family:Georgia,Times New Roman,serif;font-size:clamp(10px,.98cqw,14.5px);line-height:1.5}.page-part-1 .page-body p{font-size:clamp(11px,1.08cqw,16px);line-height:1.62}.page-part-2 .page-body{margin-top:clamp(28px,4cqw,54px)}.page-part-2 .page-body p{font-size:clamp(11px,1.06cqw,15.5px);line-height:1.62}.paper-page[lang=zh-CN] .page-body p{line-height:1.68}.paper-page blockquote{position:relative;margin:clamp(12px,1.35cqw,19px) 0 0;padding:0 0 0 clamp(12px,1.2cqw,18px);border-left:3px solid var(--blue-500);color:var(--blue-900);font-family:Georgia,Times New Roman,serif;font-size:clamp(11px,1.05cqw,16px);font-style:italic;font-weight:700;line-height:1.38}.next-thought{margin-top:auto;padding-top:clamp(12px,1.25cqw,18px);border-top:1px solid rgba(13,61,117,.12)}.next-thought span{display:block;margin-bottom:5px;color:var(--blue-700);font-size:clamp(7px,.62cqw,9px);font-weight:900;letter-spacing:.11em;text-transform:uppercase}.next-thought p{margin:0;color:var(--muted);font-size:clamp(8px,.76cqw,11px);line-height:1.4}.continued-cue{display:flex;align-items:end;justify-content:space-between;gap:18px;margin-top:auto;padding-top:clamp(13px,1.4cqw,20px);border-top:1px solid rgba(13,61,117,.12)}.continued-cue span{color:var(--muted);font-size:clamp(7px,.62cqw,9px);font-weight:900;letter-spacing:.11em;text-transform:uppercase}.continued-cue strong{color:var(--blue-700);font-family:Georgia,Times New Roman,serif;font-size:clamp(10px,.92cqw,14px);white-space:nowrap}.page-folio{margin-top:clamp(10px,1cqw,15px)}.center-gutter{position:absolute;z-index:4;top:0;bottom:0;left:50%;width:34px;pointer-events:none;background:linear-gradient(90deg,transparent 0%,rgba(20,52,80,.07) 26%,rgba(20,52,80,.2) 48%,rgba(255,255,255,.28) 54%,rgba(20,52,80,.07) 76%,transparent 100%);transform:translate(-50%)}.page-corner{position:absolute;z-index:8;bottom:0;width:62px;height:62px;appearance:none;border:0;padding:0;color:var(--blue-700);background:transparent;cursor:pointer;opacity:.56;transition:opacity .16s ease,transform .16s ease}.page-corner:before{content:"";position:absolute;inset:11px;border-radius:50%;background:var(--blue-100);box-shadow:0 4px 11px #0d3d751f;transition:transform .18s ease}.page-corner span{position:relative;z-index:2;font-size:16px}.page-corner-left{left:3px}.page-corner-right{right:3px}.page-corner:hover{opacity:1;transform:translateY(-2px)}.page-corner:hover:before{transform:scale(1.12)}.turn-sheet{position:absolute;z-index:12;top:0;bottom:0;width:50%;transform-style:preserve-3d;will-change:transform}.turn-sheet-forward{left:50%;transform-origin:left center;animation:turn-forward .76s cubic-bezier(.66,.02,.24,1) both}.turn-sheet-backward{left:0;transform-origin:right center;animation:turn-backward .76s cubic-bezier(.66,.02,.24,1) both}.turn-face{position:absolute;inset:0;overflow:hidden;-webkit-backface-visibility:hidden;backface-visibility:hidden;transform-style:flat}.turn-face .paper-page{width:100%}.turn-face .page-content{overflow:hidden}.turn-face-front{z-index:2;transform:rotateY(.01deg) translateZ(.6px)}.turn-face-back{transform:rotateY(180deg) translateZ(.6px)}.turn-sheet-backward .turn-face-back{transform:rotateY(-180deg) translateZ(.6px)}.turn-face:after{content:"";position:absolute;inset:0;pointer-events:none;opacity:0;background:linear-gradient(90deg,rgba(8,41,79,.2),rgba(8,41,79,.04) 22%,transparent 58%);animation:page-fold-shade .76s ease-in-out both}.turn-sheet-forward .turn-face-back:after,.turn-sheet-backward .turn-face-front:after{transform:scaleX(-1)}.turn-sheet-forward .turn-face-front{box-shadow:-8px 0 18px #1434501a}.turn-sheet-forward .turn-face-back,.turn-sheet-backward .turn-face-back{box-shadow:8px 0 22px #14345029}@keyframes turn-forward{0%{transform:rotateY(.01deg) translateZ(0)}48%{transform:rotateY(-86deg) translateZ(10px)}to{transform:rotateY(-179.99deg) translateZ(0)}}@keyframes turn-backward{0%{transform:rotateY(-.01deg) translateZ(0)}48%{transform:rotateY(86deg) translateZ(10px)}to{transform:rotateY(179.99deg) translateZ(0)}}@keyframes page-fold-shade{0%,to{opacity:0}45%,56%{opacity:.82}}.reader-controls{width:min(94vw,820px);display:grid;grid-template-columns:1fr auto 1fr;align-items:center;gap:22px;margin-top:clamp(22px,3vw,38px)}.reader-controls>button{width:fit-content;display:inline-flex;align-items:center;gap:10px;appearance:none;border:0;padding:8px 0;color:var(--blue-900);background:transparent;font-size:11px;font-weight:900;letter-spacing:.08em;text-transform:uppercase;cursor:pointer}.reader-controls>button:last-child{justify-self:end}.reader-controls>button:not(:disabled):hover{color:var(--blue-700);transform:translateY(-1px)}.reader-controls>button:disabled{opacity:.26;cursor:default}.spread-dots{display:flex;gap:7px;align-items:center}.spread-dots button{width:26px;height:26px;display:grid;place-items:center;appearance:none;border:0;padding:0;background:transparent;cursor:pointer}.spread-dots button span{width:18px;height:3px;border-radius:999px;background:#b6d2e8;transition:width .16s ease,background .16s ease}.spread-dots button:not(:disabled):hover span{background:var(--blue-500)}.spread-dots button.active span{width:26px;background:var(--blue-900)}.keyboard-hint{margin:10px 0 0;color:#7891a6;font-size:10px}@media(max-width:1100px){.reader-layout{width:min(100%,1240px);display:block}.index-toggle{display:inline-flex}.book-index{position:fixed;z-index:60;top:0;bottom:0;left:0;width:min(348px,88vw);height:100svh;min-height:0;border-width:0 1px 0 0;border-radius:0 24px 24px 0;background:#f8fcfff5;box-shadow:24px 0 70px #08294f33;transform:translate(-105%);transition:transform .36s cubic-bezier(.22,1,.36,1)}.book-index.is-open{transform:translate(0)}.index-close{display:grid}.index-backdrop{position:fixed;z-index:50;inset:0;display:block;appearance:none;border:0;padding:0;background:#08294f57;backdrop-filter:blur(3px);cursor:pointer;opacity:0;pointer-events:none;transition:opacity .24s ease}.index-backdrop.is-open{opacity:1;pointer-events:auto}}@media(max-width:920px){.cover-scene{gap:18px;padding:18px 24px}.cover-intro{max-width:700px}.cover-intro>p:first-child{margin-bottom:18px}.cover-intro h1{font-size:clamp(40px,8vw,62px)}.cover-subtitle{margin-inline:auto}.closed-book{width:auto;height:min(65.75vw,calc(100svh - 200px))}.book-stage{width:min(96vw,calc((100svh - 224px)*1.55))}.reader-meta{width:96vw}}@media(max-width:640px){.site-header{height:62px;grid-template-columns:1fr auto;gap:6px;padding-inline:14px}.header-title{display:none}.cover-scene,.reader-scene{min-height:calc(100svh - 62px)}.cover-scene{gap:14px;padding:16px}.cover-intro h1{font-size:clamp(35px,10.5vw,49px)}.cover-subtitle{margin-top:11px;font-size:12px;line-height:1.42}.closed-book{width:auto;height:min(75.78vw,calc(100svh - 160px))}.open-book-button{min-width:188px;padding-block:11px}.reader-scene{padding:15px 6px 20px}.reader-meta{width:96vw;margin-bottom:8px;font-size:7px}.reader-edition{display:none}.reader-meta{grid-template-columns:1fr 1fr}.reader-meta-actions{gap:12px}.back-to-cover,.index-toggle{font-size:8px}.book-stage{width:97vw;aspect-ratio:1.28}.page-content{padding:13px 12px 42px}.page-running-head{padding-bottom:6px;font-size:5px}.page-running-head span:first-child{display:none}.page-number-mark{margin-top:7px;font-size:7px}.page-kicker{margin-top:5px;font-size:5px}.paper-page h2{margin-top:5px;font-size:clamp(13px,4.4vw,19px);line-height:1}.title-rule{width:24px;height:2px;margin:7px 0}.page-body{gap:5px}.page-body-layout.with-illustration{grid-template-columns:minmax(0,1fr) 34%;gap:6px}.page-illustration{box-shadow:none}.page-part-2 .page-body{margin-top:12px}.page-body p{font-size:clamp(6.5px,1.9vw,8.5px);line-height:1.4}.paper-page[lang=zh-CN] .page-body p{line-height:1.5}.paper-page blockquote{margin-top:7px;padding-left:7px;border-left-width:2px;font-size:clamp(7px,2vw,9px)}.next-thought{padding-top:6px}.next-thought span{font-size:5px}.next-thought p{font-size:6px}.continued-cue{gap:6px;padding-top:6px}.continued-cue span,.continued-cue strong{font-size:5px}.page-folio{margin-top:6px;font-size:5px}.page-corner{width:40px;height:40px}.page-corner:before{inset:8px}.page-corner span{font-size:10px}.reader-controls{width:92vw;gap:9px;margin-top:18px}.reader-controls>button{font-size:8px}.reader-controls>button span:nth-child(2){display:none}.spread-dots{gap:2px}.spread-dots button{width:20px}.spread-dots button span{width:12px}.spread-dots button.active span{width:18px}.keyboard-hint{max-width:88vw;font-size:8px;text-align:center}}@media(prefers-reduced-motion:reduce){*,*:before,*:after{animation-duration:1ms!important;animation-iteration-count:1!important;transition-duration:1ms!important;scroll-behavior:auto!important}}
