*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}:root{--primary: #0071e3;--primary-hover: #0077ed;--primary-light: #e8f0fe;--primary-bg: #f0f5ff;--danger: #ff3b30;--danger-hover: #d32f2f;--success: #34c759;--bg: #f5f5f7;--bg-card: #ffffff;--bg-elevated: #ffffff;--text: #1d1d1f;--text-secondary: #86868b;--text-muted: #aeaeb2;--border: #d2d2d7;--border-light: #e5e5ea;--shadow-sm: 0 1px 3px rgba(0, 0, 0, .04);--shadow: 0 2px 10px rgba(0, 0, 0, .06);--shadow-lg: 0 8px 30px rgba(0, 0, 0, .1);--shadow-xl: 0 20px 60px rgba(0, 0, 0, .15);--radius: 14px;--radius-sm: 10px;--radius-xs: 6px;--radius-full: 9999px;--transition: .25s cubic-bezier(.25, .1, .25, 1);--sidebar-w: 240px;font-family:-apple-system,BlinkMacSystemFont,SF Pro Display,SF Pro Text,Helvetica Neue,Roboto,Segoe UI,Arial,Noto Sans SC,PingFang SC,Microsoft YaHei,sans-serif;font-size:14px;line-height:1.47059;color:var(--text);background:var(--bg);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}body{min-height:100vh}::selection{background:var(--primary);color:#fff}.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;padding:8px 18px;border:none;border-radius:var(--radius-full);font-size:13px;font-weight:500;cursor:pointer;transition:all var(--transition);background:var(--bg-card);color:var(--text);line-height:1.4;white-space:nowrap;box-shadow:var(--shadow-sm);-webkit-user-select:none;user-select:none}.btn:hover{box-shadow:var(--shadow);transform:translateY(-1px)}.btn:active{transform:translateY(0);box-shadow:var(--shadow-sm)}.btn:disabled{opacity:.4;cursor:not-allowed;transform:none}.btn-primary{background:var(--primary);color:#fff;box-shadow:none}.btn-primary:hover{background:var(--primary-hover);color:#fff;box-shadow:0 4px 12px #0071e34d}.btn-ghost{background:transparent;box-shadow:none;color:var(--text-secondary)}.btn-ghost:hover{background:var(--primary-light);color:var(--primary);box-shadow:none;transform:none}.btn-sm{padding:5px 14px;font-size:12px}.btn-icon{width:32px;height:32px;display:flex;align-items:center;justify-content:center;border:none;background:transparent;border-radius:var(--radius-full);cursor:pointer;color:var(--text-muted);transition:all var(--transition)}.btn-icon:hover{background:var(--primary-light);color:var(--primary)}.btn-close{width:30px;height:30px;border:none;background:transparent;font-size:20px;cursor:pointer;color:var(--text-muted);border-radius:var(--radius-full);display:flex;align-items:center;justify-content:center;transition:all var(--transition)}.btn-close:hover{background:#f5f5f7;color:var(--text)}.alert{padding:12px 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spin{to{transform:rotate(360deg)}}.loading-screen{display:flex;align-items:center;justify-content:center;min-height:100vh;background:var(--bg)}.auth-page{min-height:100vh;display:flex;align-items:center;justify-content:center;background:linear-gradient(135deg,#667eea,#764ba2);padding:20px}.auth-card{background:#ffffffeb;backdrop-filter:blur(40px) saturate(180%);-webkit-backdrop-filter:blur(40px) saturate(180%);border-radius:18px;padding:40px;width:100%;max-width:400px;box-shadow:var(--shadow-xl)}.auth-header{text-align:center;margin-bottom:28px}.auth-icon{font-size:44px;margin-bottom:10px;display:block}.auth-header h1{font-size:26px;font-weight:700;letter-spacing:-.5px;margin-bottom:4px}.auth-header p{color:var(--text-secondary);font-size:14px}.auth-footer{text-align:center;margin-top:22px;font-size:13px;color:var(--text-secondary)}.auth-footer a{font-weight:600;color:var(--primary)}.auth-divider{display:flex;align-items:center;gap:12px;margin-bottom:18px;color:var(--text-muted);font-size:12px}.auth-divider:before,.auth-divider:after{content:"";flex:1;height:1px;background:var(--border-light)}.dashboard{display:flex;min-height:100vh;padding-left:var(--sidebar-w)}.sidebar{width:var(--sidebar-w);flex-shrink:0;background:#ffffffd9;backdrop-filter:blur(40px) saturate(180%);-webkit-backdrop-filter:blur(40px) saturate(180%);border-right:1px solid var(--border-light);display:flex;flex-direction:column;position:fixed;top:0;left:0;bottom:0;z-index:50}.sidebar-logo{display:flex;align-items:center;gap:10px;padding:24px 20px 18px;font-size:17px;font-weight:700;letter-spacing:-.3px}.sidebar-logo .logo-icon{font-size:22px}.sidebar-search{padding:0 14px 14px;position:relative}.sidebar-search svg{position:absolute;left:24px;top:50%;transform:translateY(-50%);width:14px;height:14px;color:var(--text-muted);pointer-events:none}.sidebar-search input{width:100%;padding:8px 10px 8px 30px;border:none;border-radius:var(--radius-full);font-size:12px;background:var(--bg);outline:none;transition:all var(--transition)}.sidebar-search input:focus{background:var(--bg-card);box-shadow:0 0 0 2px #0071e326}.sidebar-nav{flex:1;overflow-y:auto;padding:4px 10px}.sidebar-nav::-webkit-scrollbar{width:3px}.sidebar-nav::-webkit-scrollbar-thumb{background:var(--border-light);border-radius:3px}.nav-section-title{font-size:11px;font-weight:600;color:var(--text-muted);text-transform:uppercase;letter-spacing:.8px;padding:12px 14px 6px}.nav-item{display:flex;align-items:center;width:100%;padding:8px 14px;margin-bottom:1px;border:none;background:transparent;border-radius:var(--radius-sm);font-size:13px;font-weight:500;color:var(--text-secondary);cursor:pointer;transition:all var(--transition);text-align:left;text-decoration:none}.nav-item:hover{background:#0000000a;color:var(--text)}.nav-item.active{background:var(--primary-light);color:var(--primary);font-weight:600}.nav-item .nav-dot{width:5px;height:5px;border-radius:50%;background:var(--border);flex-shrink:0;margin-right:10px}.nav-item.active .nav-dot{background:var(--primary)}.nav-item .nav-count{margin-left:auto;font-size:11px;font-weight:500;color:var(--text-muted);min-width:20px;text-align:right}.nav-item.active .nav-count{color:var(--primary)}.cat-tree-item{margin:0}.cat-tree-node{display:flex;align-items:center;gap:4px;padding:6px 14px 6px 4px;margin:1px 0;border-radius:var(--radius-sm);font-size:13px;font-weight:500;color:var(--text-secondary);cursor:pointer;transition:all var(--transition);position:relative}.cat-tree-node:hover{background:#0000000a;color:var(--text)}.cat-tree-node.active{background:var(--primary-light);color:var(--primary);font-weight:600}.cat-tree-node .nav-count{margin-left:auto;font-size:11px;font-weight:500;color:var(--text-muted);min-width:20px;text-align:right}.cat-tree-node.active .nav-count{color:var(--primary)}.cat-toggle{flex-shrink:0;width:16px;height:16px;display:flex;align-items:center;justify-content:center;border-radius:3px;transition:all var(--transition);color:var(--text-muted);cursor:pointer}.cat-toggle:hover{background:#0000000f;color:var(--text)}.cat-toggle.expanded{transform:rotate(90deg)}.cat-toggle-placeholder{flex-shrink:0;width:16px;height:16px}.cat-name{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.cat-tree-children{margin-left:4px;border-left:1px solid var(--border-light)}.sidebar-footer{padding:12px 14px;border-top:1px solid var(--border-light);display:flex;align-items:center;gap:6px}.sidebar-footer .user-avatar{width:28px;height:28px;border-radius:50%;background:var(--primary);color:#fff;display:flex;align-items:center;justify-content:center;font-size:12px;font-weight:600;flex-shrink:0}.sidebar-footer .user-name{flex:1;font-size:12px;font-weight:500;color:var(--text-secondary);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.main-area{flex:1 1 0%;padding:32px 36px;min-height:100vh;min-width:0}.main-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:24px;gap:14px}.main-search{position:relative;flex:1;max-width:360px}.main-search svg{position:absolute;left:14px;top:50%;transform:translateY(-50%);width:16px;height:16px;color:var(--text-muted);pointer-events:none}.main-search input{width:100%;padding:10px 14px 10px 40px;border:none;border-radius:var(--radius-full);font-size:13px;background:var(--bg-card);outline:none;box-shadow:var(--shadow-sm);transition:all var(--transition)}.main-search input:focus{box-shadow:0 0 0 3px #0071e31f,var(--shadow-sm)}.main-actions{display:flex;gap:8px}.cols-picker{display:flex;gap:3px;margin-bottom:20px;align-items:center}.cols-btn{width:28px;height:28px;border:none;border-radius:6px;background:transparent;color:var(--text-muted);font-size:12px;font-weight:500;cursor:pointer;transition:all var(--transition)}.cols-btn:hover{background:var(--bg-card);color:var(--text);box-shadow:var(--shadow-sm)}.cols-btn.active{background:var(--primary);color:#fff;box-shadow:0 2px 6px #0071e340}.main-title{font-size:15px;font-weight:600;color:var(--text-secondary);margin-bottom:20px;letter-spacing:-.2px}.bookmark-grid{display:flex;flex-wrap:wrap;gap:12px;justify-content:center}.bookmark-card{flex:0 0 calc((100% - (var(--cols, 4) - 1) * 12px) / var(--cols, 4));min-width:0;max-width:none;background:var(--bg-card);border-radius:var(--radius);box-shadow:var(--shadow-sm);transition:all var(--transition);position:relative;overflow:hidden}.bookmark-card:hover{box-shadow:var(--shadow-lg);transform:translateY(-2px)}.bookmark-card.select-mode{cursor:pointer}.bookmark-card.selected{box-shadow:0 0 0 2px var(--primary),var(--shadow-lg)}.card-checkbox{position:absolute;top:14px;left:14px;z-index:10}.card-checkbox input[type=checkbox]{width:20px;height:20px;cursor:pointer;border-radius:50%;accent-color:var(--primary)}.bookmark-card-link{display:flex;align-items:center;padding:16px 18px;text-decoration:none;color:inherit;gap:14px;position:relative}.card-favicon{width:44px;height:44px;border-radius:var(--radius-sm);overflow:hidden;flex-shrink:0;display:flex;align-items:center;justify-content:center;background:var(--bg);transition:transform var(--transition)}.bookmark-card:hover .card-favicon{transform:scale(1.05)}.card-favicon img{width:28px;height:28px;object-fit:contain}.card-favicon .favicon-fallback{font-size:22px}.favicon-letter{width:100%;height:100%;display:flex;align-items:center;justify-content:center;color:#fff;font-size:18px;font-weight:600;-webkit-user-select:none;user-select:none}.card-body{flex:1;min-width:0}.card-body .card-title{font-size:14px;font-weight:600;color:var(--text);line-height:1.3;margin-bottom:2px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.card-body .card-domain{font-size:12px;color:var(--text-muted);overflow:hidden;text-overflow:ellipsis;white-space:nowrap;margin-bottom:4px}.card-body .card-category{display:inline-block;padding:2px 10px;font-size:11px;font-weight:500;color:var(--text-muted);background:var(--bg);border-radius:var(--radius-full)}.card-arrow{flex-shrink:0;width:28px;height:28px;display:flex;align-items:center;justify-content:center;border-radius:50%;color:var(--text-muted);transition:all var(--transition);opacity:0;background:var(--bg)}.bookmark-card:hover .card-arrow{opacity:1;color:var(--primary);background:var(--primary-light)}.card-hover-actions{position:absolute;top:12px;right:12px;display:none;gap:4px;z-index:5}.bookmark-card:hover .card-hover-actions{display:flex}.card-hover-actions .act-btn{width:26px;height:26px;border:none;border-radius:50%;display:flex;align-items:center;justify-content:center;cursor:pointer;font-size:11px;background:var(--bg-card);box-shadow:var(--shadow-sm);color:var(--text-muted);transition:all var(--transition)}.card-hover-actions .act-btn:hover{transform:scale(1.1)}.card-hover-actions .act-edit:hover{background:var(--primary-light);color:var(--primary)}.card-hover-actions .act-del:hover{background:#fff5f5;color:var(--danger)}.batch-bar{position:fixed;bottom:0;left:var(--sidebar-w);right:0;display:flex;align-items:center;gap:12px;padding:14px 28px;background:#ffffffeb;backdrop-filter:blur(40px) saturate(180%);-webkit-backdrop-filter:blur(40px) saturate(180%);border-top:1px solid var(--border-light);box-shadow:0 -4px 20px #0000000f;z-index:30}.batch-count{font-size:13px;font-weight:600;color:var(--primary);margin-right:4px}.batch-del-btn{color:var(--danger)!important;background:#fff5f5!important}.batch-del-btn:hover{background:#ffebeb!important;box-shadow:0 2px 8px #ff3b3033!important}.empty-state{display:flex;flex-direction:column;align-items:center;justify-content:center;padding:100px 20px;text-align:center}.empty-state .empty-icon{font-size:56px;margin-bottom:16px;opacity:.35}.empty-state h3{font-size:18px;font-weight:700;margin-bottom:6px;color:var(--text);letter-spacing:-.3px}.empty-state p{font-size:14px;color:var(--text-muted)}.dup-group{margin-bottom:14px;padding:14px;background:var(--bg);border-radius:var(--radius-sm)}.dup-url{font-size:12px;color:var(--text-secondary);word-break:break-all;margin-bottom:8px;display:flex;align-items:center;gap:8px}.dup-badge{flex-shrink:0;font-size:11px;font-weight:600;color:var(--text-muted);background:var(--bg-card);padding:1px 8px;border-radius:var(--radius-full)}.dup-item{display:flex;align-items:center;justify-content:space-between;padding:6px 10px;margin-bottom:2px;background:var(--bg-card);border-radius:var(--radius-xs);font-size:13px}.dup-item:last-child{margin-bottom:0}.dup-title{font-weight:500;color:var(--text);overflow:hidden;text-overflow:ellipsis;white-space:nowrap;flex:1}.dup-date{font-size:11px;color:var(--text-muted);flex-shrink:0;margin-left:8px}.modal-overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:#0000004d;backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);display:flex;align-items:center;justify-content:center;z-index:200;padding:20px}.modal{background:#fffffff2;backdrop-filter:blur(40px) saturate(180%);-webkit-backdrop-filter:blur(40px) saturate(180%);border-radius:18px;width:100%;max-width:460px;max-height:90vh;overflow-y:auto;box-shadow:var(--shadow-xl)}.modal-header{display:flex;align-items:center;justify-content:space-between;padding:24px 28px 0}.modal-header h2{font-size:18px;font-weight:700;letter-spacing:-.3px}.modal-body{padding:20px 28px 24px}.modal-actions{display:flex;justify-content:flex-end;gap:10px;margin-top:20px}.import-hint{font-size:13px;color:var(--text-secondary);margin-bottom:16px}.drop-zone{border:2px dashed var(--border-light);border-radius:var(--radius);padding:36px 20px;text-align:center;cursor:pointer;transition:all var(--transition);background:var(--bg)}.drop-zone:hover{border-color:var(--primary);background:var(--primary-light)}.drop-zone-hint{display:flex;flex-direction:column;align-items:center;gap:8px}.upload-icon{font-size:36px}.drop-zone-hint p{font-size:14px;color:var(--text-secondary);font-weight:500}.drop-zone-hint small{font-size:12px;color:var(--text-muted)}.drop-zone-file{display:flex;align-items:center;justify-content:center;gap:8px}.file-icon{font-size:24px}.import-preview{margin-top:12px;padding:12px;background:var(--bg);border-radius:var(--radius-sm);font-size:13px;color:var(--text-secondary)}@media (max-width: 992px){.main-area{padding:24px}}@media (max-width: 768px){.dashboard{padding-left:0}.sidebar{width:100%;height:auto;position:relative;border-right:none;border-bottom:1px solid var(--border-light);-webkit-backdrop-filter:blur(40px);backdrop-filter:blur(40px);flex-direction:row;flex-wrap:wrap;align-items:center;padding:12px 14px;gap:8px}.sidebar-logo{padding:0;border-bottom:none;font-size:16px;gap:6px}.sidebar-logo .logo-icon{font-size:20px}.sidebar-search{flex:1;min-width:120px;padding:0}.sidebar-search input{font-size:12px;padding:6px 8px 6px 28px}.sidebar-search svg{left:8px;width:12px;height:12px}.sidebar-nav{order:4;flex-basis:100%;display:flex;gap:6px;overflow-x:auto;padding:4px 0;-webkit-overflow-scrolling:touch}.sidebar-nav::-webkit-scrollbar{display:none}.nav-section-title{display:none}.nav-item,.cat-tree-item{flex-shrink:0;width:auto}.nav-item{padding:5px 14px;font-size:12px;border:1px solid var(--border-light);border-radius:var(--radius-full);background:#fff9}.nav-item .nav-dot,.nav-item .nav-count{display:none}.cat-tree-node{padding:5px 14px;font-size:12px;border:1px solid var(--border-light);border-radius:var(--radius-full);background:#fff9;white-space:nowrap}.cat-tree-node .nav-count,.cat-toggle,.cat-toggle-placeholder,.cat-tree-children{display:none}.cat-tree-item{margin:0}.cat-tree-item[style]{padding-left:0!important}.sidebar-footer{border-top:none;padding:0}.sidebar-footer .user-name{display:none}.sidebar-footer .user-avatar{width:26px;height:26px;font-size:11px}.main-area{margin-left:0;padding:18px}.main-top{flex-wrap:wrap}.main-search{max-width:100%;flex-basis:100%;order:3}.main-title{margin-bottom:14px}.bookmark-grid{gap:10px}.cols-picker{justify-content:center}.bookmark-card-link{padding:14px 16px}.card-favicon{width:38px;height:38px}.card-favicon img{width:24px;height:24px}.card-body .card-title{font-size:13px}.card-hover-actions{display:flex!important;top:10px;right:10px}.card-arrow{display:none}.batch-bar{left:0!important;padding:12px 16px}}@media (max-width: 480px){.bookmark-grid{gap:8px}.cols-picker{gap:2px}.cols-btn{width:26px;height:26px;font-size:11px}.main-area{padding:14px}}