{{-- 与 pdf/exam-paper 一致：题干/选项插图上限（质检 PDF 原先缺少此段导致图过大） --}}
/* PDF图片容器：防止图片跨页分割 - 增强版 */
.pdf-figure {
    break-inside: avoid;
    page-break-inside: avoid;
    -webkit-column-break-inside: avoid;
    break-before: avoid;
    break-after: avoid;
    page-break-before: avoid;
    page-break-after: avoid;
    margin: 8px 0;
    display: block;
    min-height: 30px;
    max-height: 82mm;
}
.pdf-figure img {
    max-width: min(84%, 420px);
    max-height: 82mm;
    width: auto;
    height: auto;
    display: block;
    margin: 0 auto;
    object-fit: contain;
    box-sizing: border-box;
    -webkit-print-color-adjust: exact;
    print-color-adjust: exact;
    image-rendering: -webkit-optimize-contrast;
}
/* 题干中的图片样式（与常规组卷学生卷 PDF 一致） */
.question-stem img,
.question-main img,
.question-content img,
.answer-meta img,
.answer-line img,
.solution-content img,
.solution-section img,
.solution-parsed img {
    display: block;
    max-width: 220px;
    max-height: 60mm;
    width: auto;
    height: auto;
    margin: 6px auto;
    box-sizing: border-box;
    object-fit: contain;
    -webkit-print-color-adjust: exact;
    print-color-adjust: exact;
    image-rendering: -webkit-optimize-contrast;
}
.option img {
    display: block;
    max-width: 100%;
    max-height: 42mm;
    width: auto;
    height: auto;
    object-fit: contain;
    margin: 2px 0;
    vertical-align: top;
}
.option svg {
    display: block;
    max-width: 100%;
    max-height: 42mm;
    width: 100%;
    height: auto;
    margin: 2px 0;
    vertical-align: top;
}