/* 目次ここから*/
.rish-st-toc-summary::before,
  .rish-st-toc-summary::after {
    display: none !important;
    content: none !important;
  }
  .rish-st-toc-summary {
    display: flex !important;
    align-items: center;
    cursor: pointer;
    list-style: none !important;
    outline: none;
    font-weight: bold;
    user-select: none;
    position: relative;
    padding: 0 !important;
    border-bottom: none !important; 
    border-top: none !important;
    background: none !important;
  }
  .rish-st-toc-box details {
    border: none !important;
    padding: 0 !important;
    margin: 0 !important;
  }
  .rish-st-toc-summary br {
    display: none !important;
  }
  .rish-st-toc-box {
    background-color: #f4f7f9;
    padding: 20px;
    font-family: sans-serif;
    color: #333;
    max-width: 600px;
    border-radius: 4px;
  }
 .rish-st-toc-summary::-webkit-details-marker {
    display: none !important;
  }
  .rish-st-toc-trigger-icon {
    display: inline-block;
    width: 7px;
    height: 7px;
    border-right: 2px solid #666;
    border-bottom: 2px solid #666;
    margin-right: 12px;
    margin-left: 5px;
    transition: transform 0.3s;
    transform: rotate(45deg);
    margin-top: -3px;
  }
.rish-st-toc-box details:not([open]) .rish-st-toc-trigger-icon {
    transform: rotate(-45deg);
    margin-top: 0;
  }
  .rish-st-toc-list-wrap {
    list-style: none !important;
    padding: 0 !important;
    margin: 15px 0 0 0 !important;
  }

  .rish-st-toc-list-wrap li {
    border-top: 1px solid #d0d7de;
    padding: 12px 0;
  }

  .rish-st-toc-list-wrap a {
    text-decoration: none;
    color: #555;
    font-size: 15px;
    display: block;
  }
h2[id], h3[id] {
    scroll-margin-top: 70px; 
}
html {
    scroll-behavior: smooth;
}
/* ここまで*/