.pfb{--pfb-bg:#ededed;--pfb-ui:#a7a7a9;--pfb-ui-dark:#858589;--pfb-accent:#2e6eb5;--pfb-paper:#fff;--pfb-ratio:1.414;position:relative;left:50%;box-sizing:border-box;width:min(var(--pfb-max-width),calc(100vw - 32px));max-width:none;height:var(--pfb-height,clamp(560px,82vh,1050px));min-height:min(560px,var(--pfb-height,560px));margin:1.5rem 0;overflow:hidden;background:var(--pfb-bg);color:#fff;font:14px/1.4 system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;outline-offset:3px;isolation:isolate;transform:translateX(-50%)}
.pfb *{box-sizing:border-box}.pfb button,.pfb input{font:inherit}.pfb button{cursor:pointer}.pfb button:disabled{cursor:default;opacity:.28}.pfb [hidden]{display:none!important}
.pfb .pfb-icon{display:block;width:25px;height:25px;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round;pointer-events:none}
.pfb .pfb-loading{position:absolute;inset:0;z-index:70;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;background:var(--pfb-bg);color:#626267;font-weight:600;transition:opacity .25s ease}.pfb.pfb-ready .pfb-loading{visibility:hidden;opacity:0;pointer-events:none}
.pfb .pfb-fullscreen-close{position:absolute;right:18px;top:18px;z-index:65;display:none;width:48px;height:48px;padding:11px;border:1px solid #ffffff55;border-radius:50%;background:#69696dcf;color:#fff;box-shadow:0 6px 18px #0004;place-items:center;backdrop-filter:blur(8px)}.pfb:fullscreen .pfb-fullscreen-close{display:grid}.pfb .pfb-fullscreen-close:hover{background:#55555ae8}
.pfb .pfb-spinner{width:36px;height:36px;border:3px solid #c7c7ca;border-top-color:#707075;border-radius:50%;animation:pfbSpin .8s linear infinite}@keyframes pfbSpin{to{transform:rotate(360deg)}}
.pfb .pfb-stage{position:absolute;inset:0;overflow:hidden;overscroll-behavior:contain;scrollbar-width:none}.pfb .pfb-stage::-webkit-scrollbar{display:none;width:0;height:0}.pfb.pfb-zoomed .pfb-stage{overflow:auto}.pfb .pfb-viewport{display:flex;align-items:center;justify-content:center;width:100%;height:100%;min-width:100%;min-height:100%;padding:40px 110px 105px}
.pfb .pfb-book{position:relative;display:flex;flex:none;width:var(--pfb-book-width,700px);height:var(--pfb-book-height,495px);transform-style:preserve-3d;filter:drop-shadow(0 11px 12px #00000029);touch-action:pan-y;user-select:none}.pfb .pfb-book:before{content:"";position:absolute;left:calc(50% - 9px);top:0;bottom:0;width:18px;z-index:4;pointer-events:none;background:linear-gradient(90deg,#00000017,transparent 44%,#ffffff73 50%,transparent 56%,#00000016)}
.pfb .pfb-page{position:relative;width:50%;height:100%;overflow:hidden;background:var(--pfb-paper);box-shadow:inset 0 0 16px #00000012}.pfb .pfb-page-left{border-radius:3px 0 0 3px}.pfb .pfb-page-right{border-radius:0 3px 3px 0}.pfb .pfb-page canvas,.pfb .pfb-face canvas{display:block;width:100%;height:100%;object-fit:contain;background:#fff}
.pfb .pfb-text-layer{position:absolute;inset:0;z-index:2;overflow:clip;color-scheme:only light;line-height:1;text-align:initial;text-size-adjust:none;transform-origin:0 0;forced-color-adjust:none;pointer-events:none;user-select:text}.pfb .pfb-text-layer :is(span,br){position:absolute;color:transparent;white-space:pre;cursor:text;transform-origin:0 0;pointer-events:none}.pfb .pfb-text-layer{--min-font-size:1;--text-scale-factor:calc(var(--total-scale-factor) * var(--min-font-size));--min-font-size-inv:calc(1 / var(--min-font-size))}.pfb .pfb-text-layer>:not(.markedContent),.pfb .pfb-text-layer .markedContent span:not(.markedContent){z-index:1;--font-height:0;font-size:calc(var(--text-scale-factor) * var(--font-height));--scale-x:1;--rotate:0deg;transform:rotate(var(--rotate)) scaleX(var(--scale-x)) scale(var(--min-font-size-inv))}.pfb .pfb-text-layer .markedContent{display:contents}.pfb .pfb-text-layer ::selection{background:#2e6eb552}.pfb .pfb-text-layer br::selection{background:transparent}.pfb .pfb-text-layer .pfb-search-hit{margin:-1px;padding:1px;border-radius:2px;background:#ffd54a9e;box-shadow:0 0 0 1px #d49c16aa}
.pfb .pfb-links{position:absolute;inset:0;z-index:3;pointer-events:none}.pfb .pfb-links a{position:absolute;display:block;pointer-events:auto;border-radius:2px;transition:background .15s,box-shadow .15s}.pfb .pfb-links a:hover,.pfb .pfb-links a:focus{background:#2e6eb526;box-shadow:0 0 0 2px #2e6eb588;outline:0}
.pfb .pfb-turn{position:absolute;top:0;width:50%;height:100%;z-index:8;transform-style:preserve-3d;will-change:transform,left,opacity;filter:drop-shadow(0 8px 12px #0005)}.pfb .pfb-turn-forward{left:50%;transform-origin:left center}.pfb .pfb-turn-backward{left:0;transform-origin:right center}.pfb .pfb-face{position:absolute;inset:0;overflow:hidden;background:#fff;backface-visibility:hidden;-webkit-backface-visibility:hidden;transform-style:preserve-3d}.pfb .pfb-face-front{box-shadow:inset -22px 0 35px #00000024}.pfb .pfb-face-back{transform:rotateY(180deg);box-shadow:inset 22px 0 35px #00000024}.pfb .pfb-face canvas{backface-visibility:hidden;-webkit-backface-visibility:hidden}.pfb .pfb-face:after{content:"";position:absolute;inset:0;pointer-events:none;background:linear-gradient(90deg,#00000042 0,transparent 18%,transparent 67%,#ffffff80 87%,#00000023 100%);opacity:calc(.12 + var(--pfb-fold,.5) * .58);mix-blend-mode:multiply}.pfb .pfb-face-back:after,.pfb .pfb-turn-backward .pfb-face-front:after{background:linear-gradient(270deg,#00000042 0,transparent 18%,transparent 67%,#ffffff80 87%,#00000023 100%)}
.pfb .pfb-turn.pfb-animate-forward{animation:pfbTurnForward 1050ms cubic-bezier(.2,.68,.2,1) forwards}.pfb .pfb-turn.pfb-animate-backward{animation:pfbTurnBackward 1050ms cubic-bezier(.2,.68,.2,1) forwards}.pfb .pfb-turn.pfb-animate-forward .pfb-face:after,.pfb .pfb-turn.pfb-animate-backward .pfb-face:after{animation:pfbFoldShade 1050ms ease-in-out forwards}.pfb .pfb-turn.pfb-cover-turn.pfb-animate-forward{animation-name:pfbTurnCoverForward}.pfb .pfb-turn.pfb-cover-return.pfb-animate-backward{animation-name:pfbTurnCoverBackward}@keyframes pfbTurnForward{0%{transform:perspective(2200px) translateZ(0) rotateY(0) scaleX(1)}22%{transform:perspective(2200px) translateZ(14px) rotateY(-28deg) scaleX(.992)}50%{transform:perspective(2200px) translateZ(24px) rotateY(-88deg) scaleX(.982)}74%{transform:perspective(2200px) translateZ(16px) rotateY(-143deg) scaleX(.99)}100%{transform:perspective(2200px) translateZ(0) rotateY(-179.4deg) scaleX(1)}}@keyframes pfbTurnBackward{0%{transform:perspective(2200px) translateZ(0) rotateY(0) scaleX(1)}22%{transform:perspective(2200px) translateZ(14px) rotateY(28deg) scaleX(.992)}50%{transform:perspective(2200px) translateZ(24px) rotateY(88deg) scaleX(.982)}74%{transform:perspective(2200px) translateZ(16px) rotateY(143deg) scaleX(.99)}100%{transform:perspective(2200px) translateZ(0) rotateY(179.4deg) scaleX(1)}}@keyframes pfbTurnCoverForward{0%{left:25%;transform:perspective(2200px) translateZ(0) rotateY(0) scaleX(1)}22%{left:31%;transform:perspective(2200px) translateZ(14px) rotateY(-28deg) scaleX(.992)}50%{left:42%;transform:perspective(2200px) translateZ(24px) rotateY(-88deg) scaleX(.982)}74%{left:48%;transform:perspective(2200px) translateZ(16px) rotateY(-143deg) scaleX(.99)}100%{left:50%;transform:perspective(2200px) translateZ(0) rotateY(-179.4deg) scaleX(1)}}@keyframes pfbTurnCoverBackward{0%{left:0;transform:perspective(2200px) translateZ(0) rotateY(0) scaleX(1)}22%{left:-6%;transform:perspective(2200px) translateZ(14px) rotateY(28deg) scaleX(.992)}50%{left:-17%;transform:perspective(2200px) translateZ(24px) rotateY(88deg) scaleX(.982)}74%{left:-23%;transform:perspective(2200px) translateZ(16px) rotateY(143deg) scaleX(.99)}100%{left:-25%;transform:perspective(2200px) translateZ(0) rotateY(179.4deg) scaleX(1)}}@keyframes pfbFoldShade{0%,100%{opacity:.1}48%,55%{opacity:.78}}
.pfb .pfb-side-nav{position:absolute;top:50%;z-index:20;display:flex;flex-direction:column;gap:34px;transform:translateY(-50%)}.pfb .pfb-side-nav-left{left:24px}.pfb .pfb-side-nav-right{right:24px}.pfb .pfb-side-nav button{display:grid;width:48px;height:48px;padding:0;border:0;background:transparent;color:#fff;filter:drop-shadow(0 1px 2px #3339);place-items:center;transition:transform .15s,opacity .15s}.pfb .pfb-side-nav button:hover:not(:disabled){transform:scale(1.12)}.pfb .pfb-side-nav button .pfb-icon{width:44px;height:44px;stroke-width:2.3}.pfb .pfb-side-nav button:nth-child(2) .pfb-icon{width:35px;height:35px}
.pfb .pfb-toolbar{position:absolute;left:50%;bottom:17px;z-index:40;display:flex;align-items:center;gap:3px;max-width:calc(100% - 28px);height:64px;padding:7px 15px;border:1px solid #ffffff24;border-radius:34px;background:var(--pfb-toolbar-bg,#9b9b9dde);box-shadow:0 8px 22px #0004;transform:translateX(-50%);backdrop-filter:blur(9px);white-space:nowrap}.pfb .pfb-toolbar>button,.pfb .pfb-menu-toggle{display:grid;flex:none;width:43px;height:43px;padding:8px;border:0;border-radius:50%;background:transparent;color:#fff;place-items:center;transition:background .15s,transform .15s}.pfb .pfb-toolbar>button:hover:not(:disabled),.pfb .pfb-toolbar>button[aria-pressed="true"],.pfb .pfb-menu-toggle:hover,.pfb .pfb-menu-toggle[aria-expanded="true"]{background:#ffffff28}.pfb .pfb-toolbar>button:active,.pfb .pfb-menu-toggle:active{transform:scale(.92)}.pfb .pfb-toolbar .pfb-bookmark[aria-pressed="true"] .pfb-icon{fill:currentColor}.pfb .pfb-autoplay .pfb-pause-icon{display:none}.pfb .pfb-autoplay[aria-pressed="true"] .pfb-play-icon{display:none}.pfb .pfb-autoplay[aria-pressed="true"] .pfb-pause-icon{display:block}.pfb .pfb-separator{flex:none;width:1px;height:28px;margin:0 2px;background:#ffffff42}
.pfb .pfb-fullscreen .pfb-fullscreen-exit{display:none}.pfb:fullscreen .pfb-fullscreen .pfb-fullscreen-enter{display:none}.pfb:fullscreen .pfb-fullscreen .pfb-fullscreen-exit{display:block}
.pfb .pfb-interaction-toggle .pfb-hand-icon{display:none}.pfb .pfb-interaction-toggle[aria-pressed="true"] .pfb-hand-icon{display:block}.pfb .pfb-interaction-toggle[aria-pressed="true"] .pfb-text-icon{display:none}
.pfb .pfb-page-control{position:relative;display:flex;align-items:center;justify-content:center;min-width:104px;height:42px;padding:0 7px;color:#fff;font-size:19px;letter-spacing:.01em;cursor:text}.pfb .pfb-page-control input{position:absolute;left:7px;width:50px;padding:3px;border:0;border-radius:5px;background:#fff;color:#555;text-align:center;opacity:0;pointer-events:none;-moz-appearance:textfield}.pfb .pfb-page-control input::-webkit-inner-spin-button{display:none}.pfb .pfb-page-control:focus-within input{opacity:1;pointer-events:auto}.pfb .pfb-page-control:focus-within .pfb-page-range{visibility:hidden}.pfb .pfb-page-total{margin-left:5px}
.pfb .pfb-menu-wrap{position:relative;flex:none}.pfb .pfb-menu{position:absolute;right:0;bottom:55px;min-width:220px;padding:7px;border:1px solid #ffffff44;border-radius:12px;background:#737377f2;box-shadow:0 12px 30px #0005;backdrop-filter:blur(12px)}.pfb .pfb-menu button,.pfb .pfb-menu a{display:flex;width:100%;align-items:center;gap:10px;padding:10px 12px;border:0;border-radius:8px;background:transparent;color:#fff;text-align:left;text-decoration:none}.pfb .pfb-menu button:hover,.pfb .pfb-menu a:hover{background:#ffffff20}.pfb .pfb-menu .pfb-icon{width:20px;height:20px}
.pfb .pfb-panel{position:absolute;left:15px;top:15px;bottom:15px;z-index:35;width:min(310px,calc(100% - 30px));overflow:hidden;border:1px solid #ffffffaa;border-radius:13px;background:#f7f7f7f2;color:#34343a;box-shadow:0 14px 35px #0004;backdrop-filter:blur(12px)}.pfb .pfb-panel-head{display:flex;height:58px;align-items:center;justify-content:space-between;padding:0 13px 0 18px;border-bottom:1px solid #dedee1;font-size:16px}.pfb .pfb-panel-close,.pfb .pfb-search-close{display:grid;width:38px;height:38px;padding:7px;border:0;border-radius:50%;background:transparent;color:#59595e;place-items:center}.pfb .pfb-panel-close:hover,.pfb .pfb-search-close:hover{background:#0000000c}.pfb .pfb-panel-body{height:calc(100% - 58px);overflow:auto;padding:13px}
.pfb .pfb-thumb-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:13px}.pfb .pfb-thumb{padding:5px;border:2px solid transparent;border-radius:8px;background:#e9e9eb;color:#444;box-shadow:0 2px 5px #0002}.pfb .pfb-thumb:hover{border-color:#9db8d6}.pfb .pfb-thumb[aria-current="page"]{border-color:var(--pfb-accent);background:#e5effa}.pfb .pfb-thumb canvas{display:block;width:100%;aspect-ratio:1 / var(--pfb-ratio);object-fit:contain;background:#fff}.pfb .pfb-thumb span{display:block;padding-top:4px;text-align:center;font-size:12px}
.pfb .pfb-outline-list,.pfb .pfb-result-list,.pfb .pfb-bookmark-list{display:grid;gap:4px}.pfb .pfb-outline-item,.pfb .pfb-result-item,.pfb .pfb-bookmark-item{display:flex;width:100%;align-items:flex-start;gap:9px;padding:9px 10px;border:0;border-radius:7px;background:transparent;color:#35353a;text-align:left}.pfb .pfb-outline-item:hover,.pfb .pfb-result-item:hover,.pfb .pfb-bookmark-item:hover{background:#e7e7e9}.pfb .pfb-outline-item{padding-left:calc(10px + var(--pfb-level,0) * 14px)}.pfb .pfb-result-item small{display:block;margin-top:3px;color:#777}.pfb .pfb-empty{padding:25px 12px;color:#777;text-align:center}
.pfb .pfb-searchbar{position:absolute;left:50%;top:17px;z-index:42;display:flex;width:min(560px,calc(100% - 34px));min-height:54px;align-items:center;gap:8px;padding:7px 8px 7px 13px;border:1px solid #ffffff9e;border-radius:28px;background:#f8f8f8f2;color:#333;box-shadow:0 8px 25px #0004;transform:translateX(-50%);backdrop-filter:blur(10px)}.pfb .pfb-searchbar input{min-width:80px;flex:1;padding:8px 5px;border:0;background:transparent;color:#222;outline:0}.pfb .pfb-search-go{display:flex;align-items:center;gap:7px;padding:8px 13px;border:0;border-radius:20px;background:#737377;color:#fff}.pfb .pfb-search-go .pfb-icon{width:18px;height:18px}.pfb .pfb-search-result{max-width:135px;overflow:hidden;color:#666;font-size:12px;text-overflow:ellipsis;white-space:nowrap}
.pfb .pfb-toast{position:absolute;left:50%;bottom:93px;z-index:60;max-width:calc(100% - 30px);padding:9px 15px;border-radius:20px;background:#333d;color:#fff;box-shadow:0 5px 18px #0004;opacity:0;pointer-events:none;transform:translate(-50%,10px);transition:opacity .2s,transform .2s}.pfb .pfb-toast.pfb-show{opacity:1;transform:translate(-50%,0)}
.pfb.pfb-page-dragging .pfb-book{cursor:grabbing}.pfb .pfb-turn.pfb-dragging{animation:none}.pfb.pfb-zoomed .pfb-book{cursor:grab;touch-action:none}.pfb.pfb-panning .pfb-book{cursor:grabbing}.pfb.pfb-text-mode .pfb-book{cursor:text;touch-action:auto;-webkit-user-select:text;user-select:text}.pfb.pfb-text-mode .pfb-text-layer,.pfb.pfb-text-mode .pfb-text-layer :is(span,br){pointer-events:auto;-webkit-user-select:text;user-select:text}.pfb.pfb-single .pfb-book:before,.pfb.pfb-single .pfb-page-left{display:none}.pfb.pfb-single .pfb-page-right{width:100%;border-radius:3px}.pfb.pfb-single .pfb-turn{left:0;width:100%}.pfb.pfb-single .pfb-turn-forward{transform-origin:left center}.pfb.pfb-single .pfb-turn-backward{transform-origin:right center}.pfb:fullscreen{left:auto;width:100%;max-width:none;height:100%;min-height:0;margin:0;transform:none}
.pfb.pfb-cover .pfb-book:before,.pfb.pfb-cover .pfb-page-left{display:none}.pfb.pfb-cover .pfb-page-right{width:50%;margin-left:50%;border-radius:3px}.pfb .pfb-turn.pfb-cover-turn{left:50%;width:50%;transform-origin:left center}
.pfb .pfb-turn.pfb-animate-forward,.pfb .pfb-turn.pfb-animate-backward{filter:drop-shadow(0 0 0 transparent);transition:filter 1050ms ease}
.pfb .pfb-stage{overscroll-behavior:auto}.pfb.pfb-zoomed .pfb-stage{overflow:hidden}
.pfb .pfb-turn{transform-style:flat}.pfb .pfb-face{transform-style:flat}.pfb .pfb-face-back{transform:none;opacity:0}
.pfb .pfb-turn.pfb-animate-forward{animation:pfbFoldForward 900ms cubic-bezier(.24,.72,.2,1) forwards}.pfb .pfb-turn.pfb-animate-backward{animation:pfbFoldBackward 900ms cubic-bezier(.24,.72,.2,1) forwards}.pfb .pfb-turn.pfb-cover-turn.pfb-animate-forward{animation-name:pfbFoldCoverForward}.pfb .pfb-turn.pfb-cover-return.pfb-animate-backward{animation-name:pfbFoldCoverBackward}.pfb.pfb-single .pfb-turn.pfb-animate-forward{animation-name:pfbFoldSingleForward}.pfb.pfb-single .pfb-turn.pfb-animate-backward{animation-name:pfbFoldSingleBackward}
.pfb .pfb-turn.pfb-animate-forward .pfb-face-front,.pfb .pfb-turn.pfb-animate-backward .pfb-face-front{animation:pfbFoldFront 900ms steps(1,end) forwards}.pfb .pfb-turn.pfb-animate-forward .pfb-face-back,.pfb .pfb-turn.pfb-animate-backward .pfb-face-back{animation:pfbFoldBack 900ms steps(1,end) forwards}.pfb .pfb-turn.pfb-animate-forward .pfb-face:after,.pfb .pfb-turn.pfb-animate-backward .pfb-face:after{animation:pfbFoldShadeStable 900ms ease-in-out forwards}
@keyframes pfbFoldForward{0%{left:50%;transform-origin:left center;transform:translateY(0) scaleX(1);filter:drop-shadow(0 7px 10px #0004)}49%{left:50%;transform-origin:left center;transform:translateY(-5px) scaleX(.02);filter:drop-shadow(0 15px 18px #0006)}50%{left:0;transform-origin:right center;transform:translateY(-5px) scaleX(.02);filter:drop-shadow(0 15px 18px #0006)}100%{left:0;transform-origin:right center;transform:translateY(0) scaleX(1);filter:drop-shadow(0 0 0 transparent)}}
@keyframes pfbFoldBackward{0%{left:0;transform-origin:right center;transform:translateY(0) scaleX(1);filter:drop-shadow(0 7px 10px #0004)}49%{left:0;transform-origin:right center;transform:translateY(-5px) scaleX(.02);filter:drop-shadow(0 15px 18px #0006)}50%{left:50%;transform-origin:left center;transform:translateY(-5px) scaleX(.02);filter:drop-shadow(0 15px 18px #0006)}100%{left:50%;transform-origin:left center;transform:translateY(0) scaleX(1);filter:drop-shadow(0 0 0 transparent)}}
@keyframes pfbFoldCoverForward{0%{left:25%;transform-origin:center center;transform:translateY(0) scaleX(1)}49%{left:25%;transform-origin:center center;transform:translateY(-5px) scaleX(.02)}50%{left:0;transform-origin:right center;transform:translateY(-5px) scaleX(.02)}100%{left:0;transform-origin:right center;transform:translateY(0) scaleX(1)}}
@keyframes pfbFoldCoverBackward{0%{left:0;transform-origin:right center;transform:translateY(0) scaleX(1)}49%{left:0;transform-origin:right center;transform:translateY(-5px) scaleX(.02)}50%{left:25%;transform-origin:center center;transform:translateY(-5px) scaleX(.02)}100%{left:25%;transform-origin:center center;transform:translateY(0) scaleX(1)}}
@keyframes pfbFoldSingleForward{0%{left:0;transform-origin:left center;transform:translateY(0) scaleX(1)}49%{left:0;transform-origin:left center;transform:translateY(-5px) scaleX(.02)}50%{left:0;transform-origin:right center;transform:translateY(-5px) scaleX(.02)}100%{left:0;transform-origin:right center;transform:translateY(0) scaleX(1)}}
@keyframes pfbFoldSingleBackward{0%{left:0;transform-origin:right center;transform:translateY(0) scaleX(1)}49%{left:0;transform-origin:right center;transform:translateY(-5px) scaleX(.02)}50%{left:0;transform-origin:left center;transform:translateY(-5px) scaleX(.02)}100%{left:0;transform-origin:left center;transform:translateY(0) scaleX(1)}}
@keyframes pfbFoldFront{0%,49%{opacity:1}50%,100%{opacity:0}}@keyframes pfbFoldBack{0%,49%{opacity:0}50%,100%{opacity:1}}@keyframes pfbFoldShadeStable{0%,100%{opacity:.08}48%,52%{opacity:.62}}
@media(max-width:760px){.pfb{height:min(78vh,730px);min-height:470px}.pfb .pfb-viewport{padding:54px 25px 105px}.pfb .pfb-side-nav{top:auto;bottom:88px;display:block}.pfb .pfb-side-nav-left{left:12px}.pfb .pfb-side-nav-right{right:12px}.pfb .pfb-side-nav button:nth-child(2){display:none}.pfb .pfb-side-nav button{width:42px;height:42px}.pfb .pfb-side-nav button .pfb-icon{width:34px;height:34px}.pfb .pfb-toolbar{gap:0;height:58px;padding:6px 9px}.pfb .pfb-toolbar>button,.pfb .pfb-menu-toggle{width:38px;height:38px;padding:8px}.pfb .pfb-toolbar .pfb-outline-toggle,.pfb .pfb-toolbar .pfb-share{display:none}.pfb .pfb-page-control{min-width:76px;font-size:15px}.pfb .pfb-page-control input{width:39px}.pfb .pfb-separator{display:none}}
@media(max-width:480px){.pfb{min-height:420px}.pfb .pfb-toolbar .pfb-autoplay,.pfb .pfb-toolbar .pfb-bookmark{display:none}.pfb .pfb-search-go span{display:none}.pfb .pfb-search-result{display:none}}
@media(prefers-reduced-motion:reduce){.pfb *{scroll-behavior:auto!important}.pfb .pfb-turn.pfb-animate-forward,.pfb .pfb-turn.pfb-animate-backward{animation-duration:1ms}}

/* v2.9: feste Falzkante, echte 3D-Seitendrehung und fugenlose Doppelseiten */
.pfb .pfb-book{perspective:1600px;perspective-origin:50% 48%;transform-style:preserve-3d}.pfb .pfb-book:before{content:none}.pfb .pfb-page{flex:none;width:calc(50% + .5px)}.pfb .pfb-page-right{margin-left:-1px}.pfb.pfb-single .pfb-page-right{margin-left:0}
.pfb .pfb-turn{transform-style:preserve-3d}.pfb .pfb-face{transform-style:preserve-3d;backface-visibility:hidden;-webkit-backface-visibility:hidden}.pfb .pfb-face-back{opacity:1;transform:rotateY(180deg)}
.pfb .pfb-turn.pfb-animate-forward{animation:pfbPerspectiveForward 1050ms cubic-bezier(.2,.68,.2,1) forwards}.pfb .pfb-turn.pfb-animate-backward{animation:pfbPerspectiveBackward 1050ms cubic-bezier(.2,.68,.2,1) forwards}.pfb .pfb-turn.pfb-cover-turn.pfb-animate-forward{animation-name:pfbPerspectiveCoverForward}.pfb .pfb-turn.pfb-cover-return.pfb-animate-backward{animation-name:pfbPerspectiveCoverBackward}.pfb.pfb-single .pfb-turn.pfb-animate-forward{animation-name:pfbPerspectiveSingleForward}.pfb.pfb-single .pfb-turn.pfb-animate-backward{animation-name:pfbPerspectiveSingleBackward}
.pfb .pfb-turn.pfb-animate-forward .pfb-face,.pfb .pfb-turn.pfb-animate-backward .pfb-face{animation:none!important}.pfb .pfb-turn.pfb-animate-forward .pfb-face:after,.pfb .pfb-turn.pfb-animate-backward .pfb-face:after{animation:pfbPerspectiveShade 1050ms ease-in-out forwards}
@keyframes pfbPerspectiveForward{0%{left:50%;transform-origin:left center;transform:translateZ(0) rotateY(0) scaleX(1);filter:drop-shadow(0 0 0 transparent)}24%{left:50%;transform-origin:left center;transform:translateZ(13px) rotateY(-35deg) scaleX(.993);filter:drop-shadow(-5px 8px 14px #0004)}52%{left:50%;transform-origin:left center;transform:translateZ(18px) rotateY(-94deg) scaleX(.988);filter:drop-shadow(-10px 15px 24px #0006)}77%{left:50%;transform-origin:left center;transform:translateZ(12px) rotateY(-148deg) scaleX(.994);filter:drop-shadow(-5px 8px 15px #0004)}100%{left:50%;transform-origin:left center;transform:translateZ(0) rotateY(-180deg) scaleX(1);filter:drop-shadow(0 0 0 transparent)}}
@keyframes pfbPerspectiveBackward{0%{left:0;transform-origin:right center;transform:translateZ(0) rotateY(0) scaleX(1);filter:drop-shadow(0 0 0 transparent)}24%{left:0;transform-origin:right center;transform:translateZ(13px) rotateY(35deg) scaleX(.993);filter:drop-shadow(5px 8px 14px #0004)}52%{left:0;transform-origin:right center;transform:translateZ(18px) rotateY(94deg) scaleX(.988);filter:drop-shadow(10px 15px 24px #0006)}77%{left:0;transform-origin:right center;transform:translateZ(12px) rotateY(148deg) scaleX(.994);filter:drop-shadow(5px 8px 15px #0004)}100%{left:0;transform-origin:right center;transform:translateZ(0) rotateY(180deg) scaleX(1);filter:drop-shadow(0 0 0 transparent)}}
@keyframes pfbPerspectiveCoverForward{0%{left:25%;transform-origin:left center;transform:translateZ(0) rotateY(0) scaleX(1);filter:drop-shadow(0 0 0 transparent)}16%{left:50%;transform-origin:left center;transform:translateZ(0) rotateY(0) scaleX(1);filter:drop-shadow(0 0 0 transparent)}36%{left:50%;transform-origin:left center;transform:translateZ(12px) rotateY(-38deg) scaleX(.993);filter:drop-shadow(-5px 8px 14px #0004)}61%{left:50%;transform-origin:left center;transform:translateZ(18px) rotateY(-97deg) scaleX(.988);filter:drop-shadow(-10px 15px 24px #0006)}82%{left:50%;transform-origin:left center;transform:translateZ(11px) rotateY(-148deg) scaleX(.994);filter:drop-shadow(-5px 8px 15px #0004)}100%{left:50%;transform-origin:left center;transform:translateZ(0) rotateY(-180deg) scaleX(1);filter:drop-shadow(0 0 0 transparent)}}
@keyframes pfbPerspectiveCoverBackward{0%{left:0;transform-origin:right center;transform:translateZ(0) rotateY(0) scaleX(1);filter:drop-shadow(0 0 0 transparent)}22%{left:0;transform-origin:right center;transform:translateZ(12px) rotateY(43deg) scaleX(.993);filter:drop-shadow(5px 8px 14px #0004)}50%{left:0;transform-origin:right center;transform:translateZ(18px) rotateY(101deg) scaleX(.988);filter:drop-shadow(10px 15px 24px #0006)}72%{left:0;transform-origin:right center;transform:translateZ(10px) rotateY(151deg) scaleX(.994);filter:drop-shadow(5px 8px 15px #0004)}84%{left:0;transform-origin:right center;transform:translateZ(0) rotateY(180deg) scaleX(1);filter:drop-shadow(0 0 0 transparent)}100%{left:-25%;transform-origin:right center;transform:translateZ(0) rotateY(180deg) scaleX(1);filter:drop-shadow(0 0 0 transparent)}}
@keyframes pfbPerspectiveSingleForward{0%{left:0;transform-origin:center center;transform:translateZ(0) rotateY(0) scaleX(1);filter:drop-shadow(0 0 0 transparent)}50%{left:0;transform-origin:center center;transform:translateZ(18px) rotateY(-90deg) scaleX(.988);filter:drop-shadow(-10px 15px 24px #0006)}100%{left:0;transform-origin:center center;transform:translateZ(0) rotateY(-180deg) scaleX(1);filter:drop-shadow(0 0 0 transparent)}}
@keyframes pfbPerspectiveSingleBackward{0%{left:0;transform-origin:center center;transform:translateZ(0) rotateY(0) scaleX(1);filter:drop-shadow(0 0 0 transparent)}50%{left:0;transform-origin:center center;transform:translateZ(18px) rotateY(90deg) scaleX(.988);filter:drop-shadow(10px 15px 24px #0006)}100%{left:0;transform-origin:center center;transform:translateZ(0) rotateY(180deg) scaleX(1);filter:drop-shadow(0 0 0 transparent)}}
@keyframes pfbPerspectiveShade{0%,100%{opacity:.06}48%,54%{opacity:.58}}
@media(prefers-reduced-motion:reduce){.pfb .pfb-turn.pfb-animate-forward,.pfb .pfb-turn.pfb-animate-backward,.pfb .pfb-turn.pfb-animate-forward .pfb-face:after,.pfb .pfb-turn.pfb-animate-backward .pfb-face:after{animation-duration:1ms!important}}

/* v2.10: browserbreiter Viewer und nicht abgeflachte 3D-Ebenen */
.pfb{width:100vw;width:100dvw}.pfb .pfb-book{filter:none;perspective:1500px;perspective-origin:50% 48%}.pfb .pfb-turn{filter:none!important;transition:none}.pfb .pfb-face-front{transform:translateZ(.15px);box-shadow:inset -18px 0 30px #0000001f,0 12px 28px rgba(0,0,0,var(--pfb-shadow,0))}.pfb .pfb-face-back{transform:rotateY(180deg) translateZ(.15px);box-shadow:inset 18px 0 30px #0000001f,0 12px 28px rgba(0,0,0,var(--pfb-shadow,0))}
.pfb.pfb-back-cover .pfb-book:before,.pfb.pfb-back-cover .pfb-page-right{display:none}.pfb.pfb-back-cover .pfb-page-left{width:50%;margin-left:0;border-radius:3px}

/* v2.11: Vorder-/Rückseite wird in JavaScript exakt an der 90°-Kante umgeschaltet. */
.pfb .pfb-face,.pfb .pfb-face canvas{backface-visibility:visible;-webkit-backface-visibility:visible}

/* v2.12: während des Ziehens stammen sichtbare Inhalte ausschließlich aus den vorbereiteten Ziel-Canvases. */
.pfb.pfb-page-dragging .pfb-text-layer,.pfb.pfb-page-dragging .pfb-links{visibility:hidden}
.pfb.pfb-page-turning .pfb-page>.pfb-links{visibility:hidden;pointer-events:none}

/* v2.16: konfigurierbare Darstellung; Vollbild behält unabhängig von der gespeicherten Höhe den gesamten Viewport. */
@media(max-width:760px){.pfb{height:min(var(--pfb-height,730px),78vh,730px)}}
.pfb:fullscreen{height:100%!important;min-height:0}

/* v2.17: Cover liegen bereits an ihrer echten Buchposition; kein seitlicher Anlauf vor der Drehung. */
.pfb .pfb-turn.pfb-cover-turn.pfb-animate-forward{animation-name:pfbPerspectiveForward}.pfb .pfb-turn.pfb-cover-return.pfb-animate-backward{animation-name:pfbPerspectiveBackward}

/* v2.18: optionaler Website-Layer mit Text-, Button- oder Bildauslöser. */
button.pfb-launch{font:inherit;cursor:pointer}.pfb-launch-button{display:inline-flex;align-items:center;justify-content:center;padding:.78em 1.3em;border:0;border-radius:5px;background:#2e6eb5;color:#fff;font-weight:600;line-height:1.2;box-shadow:0 2px 7px #0002;transition:filter .15s,transform .15s}.pfb-launch-button:hover{filter:brightness(1.08)}.pfb-launch-button:active{transform:scale(.98)}.pfb-launch-text{padding:0;border:0;background:transparent;color:inherit;text-decoration:underline;text-underline-offset:.16em}.pfb-launch-image{display:inline-block;max-width:100%;padding:0;border:0;background:transparent;line-height:0}.pfb-launch-image-src{display:block;max-width:100%;height:auto}.pfb-launch:focus-visible{outline:3px solid #2e6eb566;outline-offset:3px}
html.pfb-overlay-open,body.pfb-overlay-open{overflow:hidden!important}.pfb-overlay[hidden]{display:none!important}.pfb-overlay{position:fixed;inset:0;z-index:2147483000;display:flex;align-items:center;justify-content:center;overflow:hidden;background:transparent;backdrop-filter:blur(5px);-webkit-backdrop-filter:blur(5px)}.pfb-overlay-shell{position:relative;width:100vw;width:100dvw;height:100vh;height:100dvh;overflow:hidden;box-shadow:0 0 0 100vmax var(--pfb-overlay-bg,#111b)}.pfb-overlay .pfb{left:50%;width:100vw;width:100dvw;height:100vh!important;height:100dvh!important;min-height:0;margin:0;transform:translateX(-50%)}.pfb-overlay .pfb:fullscreen{left:auto;width:100%;transform:none}.pfb-overlay-close{position:fixed;right:18px;top:18px;z-index:2147483640;display:grid;width:48px;height:48px;padding:11px;border:1px solid #ffffff70;border-radius:50%;background:#4c4c50e8;color:#fff;box-shadow:0 6px 20px #0006;cursor:pointer;place-items:center;backdrop-filter:blur(8px)}.pfb-overlay-close:hover{background:#353539}.pfb-overlay-close .pfb-icon{display:block;width:25px;height:25px;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round;pointer-events:none}@media(max-width:600px){.pfb-overlay-close{right:10px;top:10px;width:43px;height:43px;padding:9px}}

/* v3: konfigurierbare Layer-Animationen und interaktive PDF-Bereiche. */
.pfb-overlay{opacity:0;transition:opacity .22s ease}.pfb-overlay-shell{width:min(var(--pfb-overlay-width,100vw),100vw);width:min(var(--pfb-overlay-width,100vw),100dvw);height:min(var(--pfb-overlay-height,100vh),100vh);height:min(var(--pfb-overlay-height,100vh),100dvh);opacity:0;transition:opacity .22s ease,transform .22s ease}.pfb-overlay .pfb{left:0;width:100%;height:100%!important;transform:none}.pfb-overlay[data-animation="zoom"] .pfb-overlay-shell{transform:scale(.96)}.pfb-overlay[data-animation="slide"] .pfb-overlay-shell{transform:translateY(28px)}.pfb-overlay[data-animation="none"],.pfb-overlay[data-animation="none"] .pfb-overlay-shell{transition:none}.pfb-overlay[data-open="true"]{opacity:1}.pfb-overlay[data-open="true"] .pfb-overlay-shell{opacity:1;transform:none}
.pfb .pfb-links .pfb-hotspot{position:absolute;z-index:2;display:flex;align-items:center;justify-content:center;overflow:visible;padding:3px;border:2px solid #2e6eb5aa;border-radius:5px;background:#2e6eb51f;color:#164d89;font:600 12px/1.15 system-ui,sans-serif;text-align:center;text-decoration:none;pointer-events:auto;cursor:pointer}.pfb .pfb-links .pfb-hotspot:hover,.pfb .pfb-links .pfb-hotspot:focus{background:#2e6eb538;box-shadow:0 0 0 2px #fff8,0 0 0 4px #2e6eb5;outline:0}.pfb .pfb-hotspot-link{background:transparent!important}.pfb .pfb-hotspot-note{border-radius:50%;background:#ffd95b;color:#463600}.pfb .pfb-hotspot-note-popup{position:absolute;left:50%;bottom:calc(100% + 8px);width:max-content;max-width:240px;padding:9px 12px;border-radius:6px;background:#29292d;color:#fff;font-weight:400;line-height:1.35;box-shadow:0 5px 18px #0005;transform:translateX(-50%)}.pfb .pfb-hotspot-video{background:#d9233d;color:#fff}.pfb .pfb-media-modal{position:absolute;inset:0;z-index:80;display:grid;padding:6%;background:#111d;place-items:center}.pfb .pfb-media-modal iframe,.pfb .pfb-media-modal video{width:min(960px,90%);max-height:82%;aspect-ratio:16/9;border:0;background:#000;box-shadow:0 12px 40px #0008}.pfb .pfb-media-close{position:absolute;right:20px;top:20px;width:46px;height:46px;border:1px solid #fff8;border-radius:50%;background:#333e8;color:#fff;font-size:30px;line-height:1;cursor:pointer}
.pfb[data-hotspot-editor="true"] .pfb-links>a:not(.pfb-hotspot){pointer-events:none;opacity:.3}.pfb[data-hotspot-editor="true"] .pfb-hotspot-editor-item{overflow:visible;border:2px solid #2271b1!important;background:#2271b12b!important;color:#0a4b78!important;cursor:move;touch-action:none}.pfb[data-hotspot-editor="true"] .pfb-hotspot-editor-item.is-selected{background:#72aee64d!important;box-shadow:0 0 0 2px #fff,0 0 0 5px #2271b1!important}.pfb .pfb-hotspot-resize{position:absolute;right:-8px;bottom:-8px;width:17px;height:17px;border:2px solid #fff;border-radius:50%;background:#2271b1;box-shadow:0 1px 4px #0005;cursor:nwse-resize}.pfb.pfb-hotspot-editing .pfb-book{cursor:default}
@media(max-width:760px){.pfb .pfb-side-nav button{width:50px;height:50px}.pfb .pfb-toolbar{height:64px;padding:7px 10px}.pfb .pfb-toolbar>button,.pfb .pfb-menu-toggle{width:44px;height:44px}.pfb .pfb-page-control{height:44px}}

/* v3.1: Designvariablen, mobile Bedienung, Fehlerzustände und Barrierefreiheit. */
.pfb .pfb-book{filter:drop-shadow(0 11px 12px rgb(0 0 0 / var(--pfb-shadow-opacity,.35)))}
.pfb .pfb-page-left{border-radius:var(--pfb-page-radius,3px) 0 0 var(--pfb-page-radius,3px)}.pfb .pfb-page-right{border-radius:0 var(--pfb-page-radius,3px) var(--pfb-page-radius,3px) 0}.pfb.pfb-cover .pfb-page-right{border-radius:var(--pfb-page-radius,3px)}.pfb.pfb-back-cover .pfb-page-left{border-radius:var(--pfb-page-radius,3px)}
.pfb .pfb-side-nav-left{left:var(--pfb-arrow-offset,24px)}.pfb .pfb-side-nav-right{right:var(--pfb-arrow-offset,24px)}.pfb .pfb-side-nav button,.pfb .pfb-toolbar>button,.pfb .pfb-menu-toggle{color:var(--pfb-icon-color,#fff)}.pfb .pfb-menu button,.pfb .pfb-menu a{color:var(--pfb-icon-color,#fff)}
.pfb .pfb-zoom-value{min-width:52px;color:var(--pfb-icon-color,#fff);font-size:13px;font-weight:700;text-align:center;white-space:nowrap}
.pfb .pfb-brand-logo{position:absolute;top:18px;z-index:18;display:block;max-width:min(180px,28%);max-height:64px;object-fit:contain;pointer-events:none}.pfb .pfb-brand-top-left{left:22px}.pfb .pfb-brand-top-center{left:50%;transform:translateX(-50%)}.pfb .pfb-brand-top-right{right:22px}
.pfb .pfb-error{position:absolute;inset:0;z-index:75;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:12px;padding:30px;background:var(--pfb-bg);color:#34343a;text-align:center}.pfb .pfb-error[hidden]{display:none}.pfb .pfb-error-detail{max-width:520px;color:#666}.pfb .pfb-error button,.pfb .pfb-error a{display:inline-block;margin:4px;padding:9px 14px;border:1px solid #8c8f94;border-radius:6px;background:#fff;color:#1d2327;text-decoration:none;cursor:pointer}.pfb .pfb-error button{border-color:var(--pfb-accent,#2e6eb5);background:var(--pfb-accent,#2e6eb5);color:#fff}
.pfb :is(button,a,input):focus-visible{outline:3px solid color-mix(in srgb,var(--pfb-accent,#2e6eb5) 75%,white);outline-offset:3px}.pfb[aria-busy="true"] .pfb-stage{cursor:progress}.pfb.pfb-zoomed .pfb-book{touch-action:none}
.pfb.pfb-reduce-motion *,.pfb.pfb-reduce-motion *:before,.pfb.pfb-reduce-motion *:after{scroll-behavior:auto!important;animation-duration:.001ms!important;animation-iteration-count:1!important;transition-duration:.001ms!important}
@media(prefers-reduced-motion:reduce){.pfb[data-reduce-motion="auto"] *,.pfb[data-reduce-motion="auto"] *:before,.pfb[data-reduce-motion="auto"] *:after{scroll-behavior:auto!important;animation-duration:.001ms!important;animation-iteration-count:1!important;transition-duration:.001ms!important}}
@media(max-width:700px){.pfb .pfb-side-nav{gap:16px}.pfb .pfb-side-nav-left{left:8px}.pfb .pfb-side-nav-right{right:8px}.pfb .pfb-side-nav button{width:52px;height:52px}.pfb .pfb-toolbar{height:60px;max-width:calc(100% - 12px);padding:5px 8px}.pfb .pfb-toolbar>button,.pfb .pfb-menu-toggle{width:46px;height:46px}.pfb .pfb-page-control{min-width:86px;font-size:16px}.pfb .pfb-zoom-value{display:none}.pfb .pfb-brand-logo{top:10px;max-width:24%;max-height:44px}}