.pfb{position:relative;width:100%;height:var(--pfb-h,650px);background-color:var(--pfb-bg,#fff);background-image:var(--pfb-img,none);background-size:cover;background-position:center;overflow:hidden;font-family:Arial,Helvetica,sans-serif;color:#2d3748;box-sizing:border-box}
.pfb *{box-sizing:border-box}
.pfb:fullscreen{height:100vh}
.pfb-bar{position:absolute;left:50%;bottom:14px;transform:translateX(-50%);height:44px;padding:0 10px;border-radius:22px;background:rgba(255,255,255,.94);box-shadow:0 6px 24px rgba(40,50,110,.22);display:flex;align-items:center;gap:2px;z-index:5;white-space:nowrap}
.pfb-btn{background:none;border:0;color:#2d3748;width:34px;height:34px;font-size:18px;line-height:1;cursor:pointer;border-radius:50%;display:inline-flex;align-items:center;justify-content:center;text-decoration:none;padding:0}
.pfb-btn:hover{background:rgba(60,70,140,.12)}
.pfb-count{display:inline-flex;align-items:center;gap:4px;margin:0 6px;font-size:13px}
.pfb-count input{width:44px;height:26px;border:1px solid #cbd5e0;background:#fff;color:#222;text-align:center;font-size:13px;border-radius:13px;padding:0}
.pfb-stage{position:absolute;inset:0;overflow:auto;display:flex}
.pfb-wrap{margin:auto;padding:57px 40px}
.pfb-book{position:relative;transition:transform .5s ease;filter:drop-shadow(0 26px 20px rgba(70,70,150,.30))}
.pfb-book::after{content:"";position:absolute;left:50%;top:0;bottom:0;width:60px;margin-left:-30px;background:linear-gradient(90deg,rgba(0,0,0,0),rgba(0,0,0,.16) 50%,rgba(0,0,0,0));pointer-events:none;z-index:20}
.pfb-book.pfb-nospine::after{display:none}
.pfb-page{background:#fff;overflow:hidden}
.pfb-page canvas{display:block;width:100%;height:100%}
.pfb-arrow{position:absolute;top:50%;transform:translateY(-50%);z-index:4;width:42px;height:42px;border-radius:50%;background:rgba(255,255,255,.94);border:0;color:#2d3748;font-size:26px;line-height:1;cursor:pointer;box-shadow:0 4px 14px rgba(40,50,110,.25)}
.pfb-arrow.--l{left:14px}.pfb-arrow.--r{right:14px}
.pfb-msg{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;z-index:3;font-size:15px;pointer-events:none}
@media(max-width:600px){.pfb-hide-m{display:none}.pfb-wrap{padding:57px 16px}}