*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}:root{--primary: #FF6B00;--primary-hover: #e55f00;--primary-light: #fff3eb;--text: #333333;--text-secondary: #666666;--text-muted: #999999;--bg-page: #f4f4f4;--bg-white: #ffffff;--border: #e8e8e8;--border-light: #f0f0f0;--radius: 4px;--radius-md: 6px;--shadow-sm: 0 1px 4px rgba(0,0,0,.08);--shadow-md: 0 2px 8px rgba(0,0,0,.12);--shadow-lg: 0 4px 16px rgba(0,0,0,.16);--nav-height: 100px;--max-width: 1100px}html{font-size:14px}body{font-family:-apple-system,BlinkMacSystemFont,PingFang SC,Microsoft YaHei,Helvetica Neue,sans-serif;color:var(--text);background:var(--bg-page);line-height:1.5;-webkit-font-smoothing:antialiased}a{text-decoration:none;color:inherit}button{font-family:inherit}img{display:block}.container{max-width:var(--max-width);margin:0 auto;padding:0 20px}.layout-body{padding-top:var(--nav-height)}.page-main{min-height:calc(100vh - var(--nav-height) - 200px);background:var(--bg-page)}.btn-primary{display:inline-flex;align-items:center;justify-content:center;background:var(--primary);color:#fff;border:none;border-radius:var(--radius);padding:8px 20px;font-size:14px;font-weight:500;cursor:pointer;transition:background .2s;white-space:nowrap}.btn-primary:hover{background:var(--primary-hover);color:#fff}.btn-outline{display:inline-flex;align-items:center;justify-content:center;background:transparent;color:var(--primary);border:1px solid var(--primary);border-radius:var(--radius);padding:7px 20px;font-size:14px;font-weight:500;cursor:pointer;transition:all .2s;white-space:nowrap}.btn-outline:hover{background:var(--primary);color:#fff}.section-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:14px}.section-title{font-size:18px;font-weight:700;color:var(--text);display:flex;align-items:center;gap:8px;line-height:1}.section-title:before{content:"";display:block;width:4px;height:18px;background:var(--primary);border-radius:2px;flex-shrink:0}.section-more{font-size:13px;color:var(--text-muted);display:flex;align-items:center;gap:2px;transition:color .15s}.section-more:hover{color:var(--primary)}.book-card{display:flex;flex-direction:column;cursor:pointer;transition:transform .2s}.book-card:hover{transform:translateY(-2px)}.book-cover-wrap{position:relative;width:100%;aspect-ratio:3 / 4;border-radius:var(--radius);overflow:hidden;background:#eee;box-shadow:0 1px 3px #0000001f}.book-cover-img{width:100%;height:100%;object-fit:cover;display:block;transition:box-shadow .2s}.book-card:hover .book-cover-img{box-shadow:var(--shadow-lg)}.book-cover-placeholder{width:100%;height:100%;background:linear-gradient(145deg,#ff6b00,#ff9a3c);display:flex;align-items:center;justify-content:center;color:#fff;font-size:13px;font-weight:700;text-align:center;padding:8px;line-height:1.4}.book-card-info{margin-top:6px}.book-card-title{font-size:13px;font-weight:600;color:var(--text);overflow:hidden;text-overflow:ellipsis;white-space:nowrap;line-height:1.4}.book-card-author{margin-top:2px;font-size:12px;color:var(--text-muted);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.book-card-meta{margin-top:2px;font-size:12px;color:var(--primary);overflow:hidden;text-overflow:ellipsis;white-space:nowrap;display:flex;align-items:center;gap:4px}.book-grid-6{display:grid;grid-template-columns:repeat(6,1fr);gap:16px}.book-grid-5{display:grid;grid-template-columns:repeat(5,1fr);gap:16px}.book-grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}.loading-spinner{display:flex;justify-content:center;align-items:center;padding:60px 20px}.spinner{width:32px;height:32px;border:3px solid var(--border);border-top-color:var(--primary);border-radius:50%;animation:spin .8s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.empty-state{text-align:center;padding:60px 20px;color:var(--text-muted);font-size:14px}.pagination{display:flex;justify-content:center;align-items:center;gap:6px;margin-top:32px;padding:20px 0;flex-wrap:wrap}.page-btn{min-width:34px;height:34px;padding:0 8px;display:flex;align-items:center;justify-content:center;border:1px solid var(--border);border-radius:var(--radius);font-size:13px;cursor:pointer;transition:all .2s;background:var(--bg-white);color:var(--text-secondary);font-family:inherit}.page-btn:hover{border-color:var(--primary);color:var(--primary)}.page-btn.active{background:var(--primary);border-color:var(--primary);color:#fff}.page-btn:disabled{opacity:.4;cursor:not-allowed}.tag{display:inline-block;padding:1px 6px;border-radius:2px;font-size:11px;font-weight:500;line-height:1.6}.tag-cat{background:var(--primary-light);color:var(--primary)}.tag-vip{background:linear-gradient(90deg,#ff6b00,#ff9a3c);color:#fff}.tag-free{background:#e8f5e9;color:#4caf50}.tag-end{background:#f3f3f3;color:#999}.panel{background:var(--bg-white);border-radius:var(--radius);border:1px solid var(--border-light)}@media (max-width: 1100px){.book-grid-6{grid-template-columns:repeat(5,1fr)}}@media (max-width: 900px){.book-grid-6,.book-grid-5{grid-template-columns:repeat(4,1fr)}}@media (max-width: 768px){:root{--nav-height: 88px}.container{padding:0 12px}.book-grid-6,.book-grid-5,.book-grid-4{grid-template-columns:repeat(3,1fr);gap:10px}.section-title{font-size:15px}}@media (max-width: 480px){:root{--nav-height: 84px}.book-grid-6,.book-grid-5{grid-template-columns:repeat(3,1fr);gap:8px}.book-grid-4{grid-template-columns:repeat(2,1fr);gap:8px}.container{padding:0 10px}}@media (max-width: 360px){.book-grid-6,.book-grid-5,.book-grid-4{grid-template-columns:repeat(2,1fr);gap:8px}}@keyframes fadeInUp{0%{opacity:0;transform:translateY(12px)}to{opacity:1;transform:translateY(0)}}.fade-in{animation:fadeInUp .35s ease both}::-webkit-scrollbar{width:6px;height:6px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background:#ddd;border-radius:3px}::-webkit-scrollbar-thumb:hover{background:#bbb}::selection{background:#ff6b0026}