.book-share{width:44px;height:44px;position:absolute;top:0;right:0}.book-share-toggle{cursor:pointer;background:0 0;border:0}.book-share-invite{z-index:3;width:max-content;max-width:calc(100vw - max(12px,env(safe-area-inset-left)) - max(12px,env(safe-area-inset-right)));color:#554c43;transform-origin:calc(100% - 22px) -30px;background:#fff;border:1px solid #e8e3dd;border-radius:12px;align-items:center;padding:1px 2px 1px 12px;font-family:system-ui,-apple-system,Microsoft YaHei,sans-serif;animation:.4s cubic-bezier(.22,.7,.25,1) .25s both book-share-invite-in;display:flex;position:absolute;top:52px;right:0;box-shadow:0 6px 20px #2d25151f}.book-share-invite:before{content:"";background:#fff;border-top:1px solid #e8e3dd;border-left:1px solid #e8e3dd;width:8px;height:8px;position:absolute;top:-5px;right:17px;transform:rotate(45deg)}.book-share-invite-message{text-align:left;cursor:pointer;min-width:0;min-height:40px;font-size:14px;line-height:20px}.book-share-invite-message span{margin-left:3px;font-size:16px}.book-share-invite-close{color:#958b81;cursor:pointer;flex-shrink:0;place-items:center;width:32px;height:40px;margin-left:2px;display:grid}@keyframes book-share-invite-in{0%{opacity:0;transform:scale(.18)}to{opacity:1;transform:none}}@media (prefers-reduced-motion:reduce){.book-share-invite{animation:none}}.book-share-panel{z-index:2;width:min(360px,100vw - 24px);max-height:calc(100vh - 84px - env(safe-area-inset-top));max-height:calc(100dvh - 84px - env(safe-area-inset-top));overscroll-behavior:contain;color:#332f2a;visibility:hidden;opacity:0;pointer-events:none;transform-origin:calc(100% - 14px) -28px;background:#fffdf9;border:1px solid #e8e2d7;border-radius:18px;padding:8px 14px 10px;font-family:system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,Microsoft YaHei,sans-serif;transition:transform .4s cubic-bezier(.22,.7,.25,1),opacity .4s,visibility 0s .4s;position:absolute;top:50px;right:8px;overflow-y:auto;transform:scale(.18);box-shadow:0 12px 42px #17141130}.book-share-panel[data-open=true]{visibility:visible;opacity:1;pointer-events:auto;transition-delay:0s;transform:scale(1)}.book-share-panel header{justify-content:space-between;align-items:center;gap:12px;margin-bottom:6px;display:flex}.book-share-panel h2{margin:0;font-size:16px;font-weight:600}.book-share-panel header button{color:#81796d;cursor:pointer;border-radius:10px;flex-shrink:0;place-items:center;width:44px;height:44px;margin-right:-8px;display:grid}.book-share-copy{background:#f5f1e9;border:1px solid #e8e2d7;border-radius:10px;align-items:center;gap:8px;min-height:46px;padding-left:12px;display:flex}.book-share-copy input{color:#6f6659;text-overflow:ellipsis;white-space:nowrap;outline-offset:-2px;background:0 0;border:0;flex:1;width:0;min-width:0;height:44px;font-size:16px}.book-share-copy button{color:#67523a;cursor:pointer;background:#ebe3d5;border-radius:0 9px 9px 0;flex-shrink:0;justify-content:center;align-self:stretch;align-items:center;gap:5px;min-width:74px;padding:0 10px;font-size:13px;font-weight:600;display:flex}.book-share-apps{text-align:left;cursor:pointer;align-items:center;gap:11px;width:100%;min-height:72px;padding:13px 0 7px;display:flex}.book-share-app-icon{color:#52734c;background:#e7eee5;border-radius:13px;flex-shrink:0;place-items:center;width:42px;height:42px;display:grid}.book-share-apps>span:nth-child(2){flex:1;min-width:0}.book-share-apps strong{font-size:14px;font-weight:500;display:block}.book-share-apps small{color:#948b7d;margin-top:3px;font-size:11px;line-height:1.5;display:block}.book-share-apps>svg{color:#a3998a;flex-shrink:0}.book-share-apps:disabled{cursor:default}.book-share-apps:disabled .book-share-app-icon{color:#989186;background:#eeebe6}.book-share-panel button:focus-visible,.book-share-panel input:focus-visible{outline-offset:2px;outline:2px solid #917550}.book-share-panel header button:active,.book-share-apps:not(:disabled):active{background:#f5f1e9}.book-share-message{color:#786750;margin:0;font-size:12px;line-height:1.6}.book-share-message:not(:empty){padding:4px 0 2px}@media (prefers-reduced-motion:reduce){.book-share-panel{transition:none}}