/* KaTeX CSS - Local Fallback */
.katex {
    font: normal 1.21em KaTeX_Main, "Times New Roman", serif;
    line-height: 1.2;
    text-indent: 0;
    text-rendering: auto;
    font-style: italic;
    color: #666;
}

.katex * {
    -ms-high-contrast-adjust: none !important;
}

.katex .katex-version::after {
    content: "本地备用版本";
}

.katex .katex-mathml {
    position: absolute;
    clip: rect(1px, 1px, 1px, 1px);
    padding: 0;
    border: 0;
    height: 1px;
    width: 1px;
    overflow: hidden;
}

.katex-display {
    display: block;
    margin: 1em 0;
    text-align: center;
}

.katex-display > .katex {
    display: block;
    text-align: center;
    white-space: nowrap;
}

/* 备用样式提示 */
.katex::before {
    content: "[数学公式渲染服务不可用] ";
    font-size: 0.8em;
    color: #999;
    font-style: normal;
}