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#e5e7eb;background-color:#f9fafb}.pdf-preview-thumb{flex-shrink:0;width:60px;border-radius:8px;overflow:hidden;border:1px solid #e5e7eb;background-color:#fff}.pdf-preview-image{width:100%;height:auto;display:block}.pdf-preview-meta{display:flex;flex-direction:column;gap:2px}.pdf-preview-title{font-size:12px;font-weight:500;color:#111827}.pdf-preview-subtitle{font-size:11px;color:#6b7280}.pdf-thumb{margin-bottom:6px;width:70px;border-radius:8px;overflow:hidden;border:1px solid #e5e7eb;background-color:#fff}.pdf-thumb-image{width:100%;height:auto;display:block}.pdf-thumb-label{display:block;padding:2px 4px;font-size:10px;text-align:center;background-color:#eff6ff;color:#1d4ed8}@media(max-width:900px){.tool-layout{grid-template-columns:minmax(0,1fr)}.app-main{padding:16px}}@media(max-width:600px){.topbar{flex-direction:column;align-items:flex-start;gap:8px}}