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.25s}.doc-preview-overlay.show{opacity:1;pointer-events:auto}.doc-preview-panel{background:var(--bg-secondary);border-radius:var(--radius-lg);width:90vw;max-width:960px;max-height:90vh;display:flex;flex-direction:column;box-shadow:0 8px 40px #0006;overflow:hidden}.doc-preview-header{display:flex;align-items:center;gap:12px;padding:14px 20px;border-bottom:1px solid var(--border-color);flex-shrink:0}.doc-preview-title{font-size:15px;font-weight:600;color:var(--text-primary);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;margin:0;flex:1}.doc-preview-tabs{display:flex;gap:4px;background:var(--bg-input);border-radius:8px;padding:3px}.doc-preview-tab{background:none;border:none;color:var(--text-secondary);padding:5px 12px;border-radius:6px;font-size:13px;cursor:pointer;transition:var(--transition)}.doc-preview-tab:hover{color:var(--text-primary)}.doc-preview-tab.active{background:var(--accent);color:#fff}.doc-preview-actions{display:flex;gap:8px}.doc-preview-btn{padding:6px 14px;border-radius:8px;font-size:13px;border:1px solid var(--border-color);background:var(--bg-input);color:var(--text-primary);cursor:pointer;transition:var(--transition);white-space:nowrap}.doc-preview-btn:hover{background:var(--bg-hover)}.doc-preview-btn.primary{background:var(--accent);border-color:var(--accent);color:#fff}.doc-preview-btn.primary:hover{background:var(--accent-hover)}.doc-preview-btn:disabled{opacity:.5;cursor:not-allowed}.doc-preview-body{flex:1;overflow-y:auto;padding:20px 24px;background:var(--bg-primary)}.doc-preview-loading{display:flex;align-items:center;justify-content:center;gap:10px;padding:40px;color:var(--text-secondary);font-size:14px}.doc-preview-empty{text-align:center;padding:40px;color:var(--text-tertiary);font-size:14px}.doc-content{font-size:14px;line-height:1.8;color:var(--text-primary)}.doc-content h1{font-size:22px;margin:16px 0 8px;font-weight:700}.doc-content h2{font-size:18px;margin:14px 0 6px;font-weight:600}.doc-content h3{font-size:16px;margin:12px 0 4px;font-weight:600}.doc-content p{margin:4px 0 8px}.doc-content table{border-collapse:collapse;width:100%;margin:10px 0;font-size:13px}.doc-content table td,.doc-content table th{border:1px solid var(--border-strong);padding:6px 10px}.doc-content li{margin:2px 0}.doc-content img{max-width:100%;height:auto;border-radius:4px}.doc-content a{color:var(--accent)}.doc-content strong{font-weight:700}.doc-content em{font-style:italic}.diff-content del{background:#ef444426;color:#ef4444;text-decoration:line-through;padding:1px 2px}.diff-content ins{background:#22c55e26;color:#22c55e;text-decoration:none;padding:1px 2px}.diff-content mark{background:#f59e0b33;padding:1px 4px;border-radius:3px}[data-theme=light] .diff-content del{background:#ef44441a;color:#dc2626}[data-theme=light] .diff-content ins{background:#22c55e1a;color:#16a34a}.doc-changes-list{border-top:1px solid var(--border-color);padding:14px 20px;max-height:240px;overflow-y:auto;flex-shrink:0}.doc-changes-list h4{font-size:14px;font-weight:600;color:var(--text-primary);margin:0 0 10px}.doc-change-item{background:var(--bg-input);border-radius:8px;padding:10px 14px;margin-bottom:8px;border-left:3px solid var(--border-color)}.doc-change-item.change-modify{border-left-color:var(--warning)}.doc-change-item.change-delete{border-left-color:var(--danger)}.doc-change-item.change-add{border-left-color:var(--success)}.doc-change-item.change-comment{border-left-color:var(--accent)}.change-type-badge{display:inline-block;font-size:11px;font-weight:600;padding:1px 7px;border-radius:4px;margin-right:8px}.change-modify .change-type-badge{background:#f59e0b33;color:var(--warning)}.change-delete .change-type-badge{background:#ef444433;color:var(--danger)}.change-add .change-type-badge{background:#22c55e33;color:var(--success)}.change-comment .change-type-badge{background:#4f8cff33;color:var(--accent)}.change-location{font-size:12px;color:var(--text-tertiary)}.change-reason{font-size:12px;color:var(--text-secondary);margin:4px 0}.change-texts{font-size:13px;margin:6px 0}.change-original{color:#ef4444;margin-bottom:3px}.change-suggested{color:#22c55e}.change-label{font-size:11px;opacity:.7}.change-toggle{display:flex;align-items:center;gap:6px;font-size:12px;color:var(--text-secondary);margin-top:6px;cursor:pointer}.change-toggle input{cursor:pointer}@media (max-width: 768px){.doc-preview-panel{width:96vw;max-height:96vh;border-radius:var(--radius)}.doc-preview-header{flex-wrap:wrap;gap:8px}.doc-preview-tabs{order:3}.doc-preview-body{padding:12px 16px}.doc-changes-list{max-height:180px}}