body{-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,Fira Sans,Droid Sans,Helvetica Neue,sans-serif;margin:0}code{font-family:source-code-pro,Menlo,Monaco,Consolas,Courier New,monospace}.navbar{background-color:#343a40;padding:1rem 0}.navbar-inner{justify-content:space-between;margin:0 auto;max-width:1200px;padding:0 20px}.navbar-inner,.navbar-left,.navbar-right{align-items:center;display:flex}.navbar-right{gap:10px}.navbar-brand{align-items:center;color:#fff;display:flex;font-size:1.5rem;font-weight:700;text-decoration:none}.navbar-title{margin-left:10px}.navbar-nav{display:flex;list-style:none;margin:0;padding:0}.navbar-nav-left{margin-left:20px}.navbar-nav-right{margin-left:10px}.navbar-nav .nav-item{margin:0 10px}.navbar-nav .nav-link{color:#fff;text-decoration:none}.navbar-nav .nav-link:hover{color:#007bff}.card{border:1px solid 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#00000026;margin-top:8px;overflow:hidden;position:absolute;right:0;top:100%;width:350px;z-index:1000}.notification-header{align-items:center;background-color:#f8f9fa;border-bottom:1px solid #eee;display:flex;justify-content:space-between;padding:12px 16px}.notification-header h3{color:#333;font-size:14px;font-weight:600;margin:0}.mark-all-read-btn{background:none;border:none;border-radius:4px;color:#667eea;cursor:pointer;font-size:12px;padding:4px 8px;transition:background-color .2s}.mark-all-read-btn:hover{background-color:#667eea1a}.notification-empty,.notification-loading{color:#999;padding:30px 16px;text-align:center}.notification-empty i,.notification-loading i{display:block;font-size:2rem;margin-bottom:8px}.notification-list{max-height:400px;overflow-y:auto}.notification-item{align-items:flex-start;border-bottom:1px solid #eee;cursor:pointer;display:flex;padding:12px 16px;transition:background-color .2s}.notification-item:last-child{border-bottom:none}.notification-item:hover{background-color:#f8f9fa}.notification-item.unread{background-color:#fff3e0}.notification-item.unread:hover{background-color:#ffe0b2}.notification-icon{flex-shrink:0;font-size:1.2rem;margin-right:12px;margin-top:2px}.notification-content{flex:1 1;min-width:0}.notification-text{color:#333;font-size:13px;line-height:1.4;margin:0}.notification-time{color:#999;display:block;font-size:11px;margin-top:4px}.notification-delete{background:none;border:none;border-radius:4px;color:#999;cursor:pointer;opacity:0;padding:4px;transition:opacity .2s,color .2s}.notification-item:hover .notification-delete{opacity:1}.notification-delete:hover{color:#e74c3c}.notification-delete i{font-size:.9rem}@media (max-width:768px){.notification-dropdown{right:-20px;width:280px}}.library-background{animation:woodGrain 20s ease-in-out infinite;background:linear-gradient(45deg,#8b4513,sienna 25%,peru 50%,tan 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#0000004d;color:#d4af37;font-family:Georgia,serif;font-size:.9rem;font-weight:700;left:20px;padding:.5rem 1rem;position:absolute;top:-35px}.books-grid{grid-gap:.5rem;display:grid;gap:.5rem;grid-template-columns:repeat(auto-fill,minmax(120px,1fr));padding:1rem 0}.book-spine{border-radius:0 4px 4px 0;box-shadow:2px 0 4px #0000004d,inset -2px 0 4px #0003;cursor:pointer;height:200px;overflow:hidden;position:relative;transition:all .3s ease;width:100%}.book-spine:hover{box-shadow:4px 5px 12px #0006,inset -2px 0 4px #0003;transform:translateY(-5px) rotateY(-5deg)}.book-spine.fantasy{background:linear-gradient(90deg,#4a148c 0,#7b1fa2 50%,#9c27b0)}.book-spine.romance{background:linear-gradient(90deg,#c2185b 0,#e91e63 50%,#f06292)}.book-spine.mystery{background:linear-gradient(90deg,#1a237e 0,#303f9f 50%,#3f51b5)}.book-spine.scifi{background:linear-gradient(90deg,#004d40 0,#00695c 50%,#00796b)}.book-spine.historical{background:linear-gradient(90deg,#bf360c 0,#d84315 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h1{font-size:2rem}.reading-lamp{display:none}}@media (max-width:480px){.book-spine{height:180px}.book-title{font-size:.65rem;top:1.5rem}.book-author{bottom:1.5rem;font-size:.6rem}}.books-loading{align-items:center;display:flex;height:200px;justify-content:center}.loading-book{animation:bookFlip 1.5s ease-in-out infinite;background:linear-gradient(45deg,#8b4513,#d4af37);border-radius:0 4px 4px 0;height:60px;margin:0 5px;width:40px}.loading-book:nth-child(2){animation-delay:.2s}.loading-book:nth-child(3){animation-delay:.4s}@keyframes bookFlip{0%,to{transform:rotateY(0deg)}50%{transform:rotateY(180deg)}}.chinese-style{direction:rtl}.chinese-style .reading-area{direction:rtl;text-align:right}.vertical-text{background:linear-gradient(270deg,#fff8dc 0,beige);border:2px solid #8b4513;border-radius:8px;box-shadow:inset 0 0 20px #8b45131a;direction:rtl;font-family:SimSun,宋体,serif;line-height:2;min-height:400px;padding:2rem;text-align:justify;text-orientation:upright;writing-mode:vertical-rl}.chinese-controls{direction:ltr;flex-direction:row-reverse}.chinese-controls .page-btn{background:#8b4513;border:2px solid #d4af37;color:#fff8dc;font-family:SimSun,宋体,serif}.chinese-controls .page-btn:hover{background:sienna;box-shadow:0 0 10px #d4af3780}.book-reader{background:#fff8dcfa;border:3px solid #8b4513;border-radius:15px;box-shadow:0 10px 40px #0000004d,inset 0 0 20px #8b45131a;margin:2rem auto;max-width:900px;padding:2rem}.book-header{background:linear-gradient(135deg,#fff8dc,beige);border-bottom:3px solid #d4af37;border-radius:8px;margin-bottom:2rem;padding:1.5rem}.back-btn{background:linear-gradient(135deg,#8b4513,sienna);border:2px solid #d4af37;border-radius:8px;color:#fff8dc;cursor:pointer;font-family:Georgia,serif;font-weight:700;margin-bottom:1rem;padding:.7rem 1.5rem;transition:all .3s 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#0003}.close-button{align-items:center;background:#fff3;border:none;border-radius:50%;color:#fff;cursor:pointer;display:flex;font-size:18px;height:28px;justify-content:center;transition:all .2s ease;width:28px}.close-button:hover{background:#ffffff4d;transform:scale(1.1)}.message-text{font-size:16px;line-height:1.6;margin:0 0 16px;opacity:.95;text-shadow:0 1px 2px #0003}.message-footer{display:flex;justify-content:flex-end}.message-cta{font-size:14px;font-weight:500;opacity:.9;transition:opacity .2s ease}.push-message-container:hover .message-cta{opacity:1}.message-decoration{bottom:0;left:0;overflow:hidden;pointer-events:none;position:absolute;right:0;top:0}.decoration-circle{animation:float 6s ease-in-out infinite;background:#ffffff1a;border-radius:50%;position:absolute}.circle-1{animation-delay:0s;height:60px;right:-30px;top:-30px;width:60px}.circle-2{animation-delay:2s;bottom:-20px;height:40px;left:-20px;width:40px}.decoration-line{animation:slide 8s linear 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