.toc-card {
    background-color: #F5E8E2;
    border-radius: 12px;
    margin: 25px 0;
    overflow: hidden;
}
.toc-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 18px 22px;
    cursor: pointer;
    list-style: none;
    border-bottom: 1px solid #d8d2c5;
}
.toc-title {
    font-family: Calibri;
    font-size: 28px;
    font-weight: bold;
}
.toc-header::-webkit-details-marker { display: none; }
.toc-arrow::after { content: "▼"; font-size: 14px; transition: transform 0.25s ease; }
.toc-card[open] .toc-arrow::after { transform: rotate(180deg); }
.toc-card ul { padding: 14px 30px 18px 40px; margin: 0; font-family: Calibri; font-size: 18px; }
.toc-card li { margin: 7px 0; }
.toc-card a { color: #000; text-decoration: none; transition: opacity 0.2s ease; }
.toc-card a:hover { opacity: 0.7; }