*{box-sizing:border-box}
html,body{margin:0;width:100%;height:100%;overflow:hidden}
body{background:#eee;font-family:Georgia,"Times New Roman",serif}
.reader{width:100%;height:100vh;position:relative;display:flex;flex-direction:column;justify-content:center;align-items:center;overflow:hidden}
.toolbar{position:absolute;right:12px;top:6px;z-index:20;display:flex;background:rgba(255,255,255,.96);border-radius:4px;box-shadow:0 2px 10px rgba(0,0,0,.08);overflow:hidden}
.toolbar button{width:48px;height:48px;border:0;background:transparent;cursor:pointer;font-size:23px}
.toolbar button:hover{background:#eee}
.book-area{width:96vw;height:88vh;max-width:1500px;position:relative;display:flex;align-items:center;justify-content:center}
.book{width:92%;height:100%;position:relative;transition:transform .7s cubic-bezier(.22,.61,.36,1)}
.page{background:#fff;overflow:hidden;box-shadow:0 0 10px rgba(0,0,0,.18)}
.page-inner{width:100%;height:100%;background:#fff;position:relative}
.page-inner img{width:100%;height:100%;display:block;object-fit:contain;background:#fff}
.nav{position:absolute;top:50%;transform:translateY(-50%);z-index:15;width:46px;height:46px;border:0;border-radius:50%;background:rgba(255,255,255,.96);box-shadow:0 2px 10px rgba(0,0,0,.16);font-size:35px;line-height:35px;cursor:pointer}
.nav:hover{background:#fff}
.prev{left:0}.next{right:0}
.bottom-bar{position:absolute;bottom:12px;left:50%;transform:translateX(-50%);z-index:10;font:13px Arial,sans-serif;color:#555}
.page-num-btn{display:flex;align-items:center;gap:8px;background:rgba(255,255,255,.96);border:0;border-radius:16px;padding:7px 14px;box-shadow:0 2px 10px rgba(0,0,0,.1);font:13px Arial,sans-serif;color:#555;cursor:pointer}
.page-num-btn:hover{background:#fff}
.copy-icon{font-size:13px;opacity:.6}
.page-num-btn.copied .copy-icon{opacity:1;color:#1a7f37}
#soundToggle.muted{opacity:.4}
.share-wrap{position:relative}
.share-menu{display:none;position:absolute;top:52px;right:0;background:#fff;border-radius:8px;box-shadow:0 4px 18px rgba(0,0,0,.18);padding:6px;flex-direction:column;min-width:150px;z-index:30}
.share-menu.open{display:flex}
.share-menu a,.share-menu button{display:block;padding:9px 12px;border:0;background:transparent;text-align:left;font:13px Arial,sans-serif;color:#222;text-decoration:none;border-radius:5px;cursor:pointer;width:100%}
.share-menu a:hover,.share-menu button:hover{background:#f2f2f2}
.locked-inner{display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;padding:35px}
.lock-icon{font-size:45px;margin-bottom:18px}
.locked-inner h2{font-size:28px;margin:0 0 12px}
.locked-inner p{font:15px Arial,sans-serif;color:#555;margin:0 0 22px}
.cta{display:inline-block;padding:14px 24px;background:#111;color:#fff;text-decoration:none;font:13px Arial,sans-serif;letter-spacing:1px}
@media(max-width:700px){
  .book-area{width:96vw;height:78vh}
  .book{width:100%}
  .toolbar button{width:40px;height:40px;font-size:19px}
  .nav{width:38px;height:38px;font-size:28px}
}