/* ============ PDF 工具补充样式 ============ */
.tool-container {
    max-width: 900px;
    margin: 64px auto 0;
    padding: 24px 20px 48px;
}

/* 9宫格位置选择器 */
.pos-grid {
    display: grid;
    grid-template-columns: repeat(3, 44px);
    gap: 6px;
    margin: 8px 0;
}
.pos-grid .pos-cell {
    width: 44px;
    height: 32px;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    background: var(--white);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s;
    font-size: 11px;
    color: var(--text-light);
}
.pos-grid .pos-cell:hover { border-color: var(--primary-color); }
.pos-grid .pos-cell.active {
    background: var(--primary-color);
    color: var(--white);
    border-color: var(--primary-color);
}

/* 提取文本预览框 */
.text-preview {
    width: 100%;
    min-height: 320px;
    max-height: 480px;
    overflow-y: auto;
    background: var(--bg-color);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    padding: 16px;
    font-size: 14px;
    line-height: 1.8;
    white-space: pre-wrap;
    word-break: break-word;
    font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}

/* 元数据展示网格 */
.meta-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
}
.meta-grid .meta-item {
    background: var(--bg-color);
    padding: 10px 14px;
    border-radius: 6px;
}
.meta-grid .meta-label { font-size: 12px; color: var(--text-light); display: block; }
.meta-grid .meta-value { font-size: 14px; font-weight: 500; word-break: break-all; }

/* 提取图片预览网格 */
.extracted-images {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
    gap: 10px;
    margin-top: 12px;
}
.extracted-images .ext-img {
    border: 1px solid var(--border-color);
    border-radius: 6px;
    overflow: hidden;
    background: var(--white);
}
.extracted-images .ext-img img {
    width: 100%;
    height: 90px;
    object-fit: contain;
    display: block;
    background: #f8fafc;
}
.extracted-images .ext-name {
    font-size: 11px;
    padding: 4px 6px;
    color: var(--text-light);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

/* 压缩对比展示 */
.compare-row {
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    gap: 12px;
    align-items: center;
    margin: 16px 0;
}
.compare-row .compare-arrow { font-size: 24px; color: var(--text-light); text-align: center; }
.compare-row .compare-box {
    background: var(--bg-color);
    border-radius: 6px;
    padding: 16px;
    text-align: center;
}
.compare-row .compare-box .compare-label { font-size: 12px; color: var(--text-light); }
.compare-row .compare-box .compare-value { font-size: 20px; font-weight: 700; }

/* 加载遮罩 */
.loading-overlay {
    display: none;
    text-align: center;
    padding: 24px;
    color: var(--text-light);
}
.loading-overlay.show { display: block; }

@media (max-width: 600px) {
    .meta-grid { grid-template-columns: 1fr; }
    .compare-row { grid-template-columns: 1fr; text-align: center; }
    .compare-row .compare-arrow { transform: rotate(90deg); }
}