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60px;--transition: .22s cubic-bezier(.4, 0, .2, 1);--scrollbar-thumb: rgba(79, 70, 229, .28);--scrollbar-thumb-hover: rgba(79, 70, 229, .48)}[data-theme=dark]{--color-card: #1E293B;--color-bg: #0B1120;--color-bg-glow: rgba(99, 102, 241, .1);--color-text: #F1F5F9;--color-text-secondary: #94A3B8;--color-border: #334155;--color-input-bg: #1E293B;--color-active-bg: #1E1B4B;--color-ghost-border: #475569;--color-search-bg: #1E293B;--color-nav-bg: #312E81;--color-accent-soft: rgba(249, 115, 22, .14);--shadow-sm: 0 1px 3px rgba(0, 0, 0, .25);--shadow-md: 0 4px 16px rgba(0, 0, 0, .32);--shadow-lg: 0 16px 48px rgba(0, 0, 0, .45);--scrollbar-thumb: rgba(129, 140, 248, .35);--scrollbar-thumb-hover: rgba(129, 140, 248, .55)}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}html{scrollbar-width:thin;scrollbar-color:var(--scrollbar-thumb) transparent}html::-webkit-scrollbar{width:8px;height:8px}*{scrollbar-width:thin;scrollbar-color:var(--scrollbar-thumb) 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var(--transition);margin-bottom:4px}.paper-item:hover{background:var(--color-search-bg)}.paper-item.active{background:var(--color-active-bg);border-color:var(--color-interactive)}.paper-item-title{font-size:13px;font-weight:600;color:var(--color-text);line-height:1.4;margin-bottom:6px}.paper-item-meta{display:flex;align-items:center;gap:6px;flex-wrap:wrap}.paper-level-tag{font-size:11px;padding:2px 8px;border-radius:999px;font-weight:500}.paper-level-tag.preliminary{background:#ecfdf5;color:#059669}.paper-level-tag.vantage{background:#eff6ff;color:#2563eb}.paper-level-tag.higher{background:#fef3c7;color:#d97706}.paper-item-date{font-size:11px;color:var(--color-text-secondary)}.paper-placeholder-badge{font-size:10px;padding:1px 6px;border-radius:4px;background:var(--color-search-bg);color:var(--color-text-secondary);border:1px dashed var(--color-border)}.papers-viewer{background:var(--color-card);border-radius:var(--radius-md);border:1px solid var(--color-border);box-shadow:var(--shadow-sm);overflow:hidden;display:flex;flex-direction:column}.papers-viewer-head{padding:var(--space-sm) var(--space-md);border-bottom:1px solid var(--color-border);background:var(--color-search-bg)}.papers-viewer-head h2{font-size:17px;margin-bottom:4px}.papers-viewer-meta{display:flex;gap:12px;flex-wrap:wrap;font-size:13px;color:var(--color-text-secondary)}.papers-viewer-body{flex:1;overflow-y:auto;padding:var(--space-md)}.paper-section{margin-bottom:var(--space-md)}.paper-section:last-child{margin-bottom:0}.paper-section-head{display:flex;align-items:center;gap:8px;margin-bottom:10px;padding-bottom:8px;border-bottom:2px solid var(--color-active-bg)}.paper-section-head h3{font-size:15px;color:var(--color-primary)}.paper-section-time{font-size:12px;color:var(--color-text-secondary);background:var(--color-search-bg);padding:2px 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