.single_container {
  max-width: 960px;
  margin: 0 auto;
  padding-top: clamp(70px, 6.25vw + 40px, 100px);
  padding-left: 20px;
  padding-right: 20px;
  padding-bottom: 0;
}
.single-cover {
  padding: 6rem 5%;
  border: solid 0.3rem #212121;
  background-color: #fff;
}
.single-h1 {
  position: relative;
}
.single-h1::first-letter {
  color: #ec2186;
}
.single-h1::before {
  content: "title";
  display: block;
  color: #212121;
  font-size: 1.3rem;
  position: absolute;
  top: -1rem;
  left: 0;
}
.singleBox h2,
.singleBox h3 {
  margin-top: 4rem;
}
.singleBox h2 {
  position: relative;
}
.singleBox h2::first-letter {
  color: #ec2186;
}
.singleBox h2::before {
  content: "midashi";
  display: block;
  color: #212121;
  font-size: 1.3rem;
  position: absolute;
  top: -1.3rem;
  left: 0;
}
.singleBox p {
  margin-top: 1.5rem;
  font-weight: normal;
}
.singleBox img {
  margin-top: 1.5rem;
}
.singleBox ul {
  margin-top: 1.5rem;
  background: #f5f5f5;
  padding: 3%;
}
.singleBox li {
  list-style-position: inside;
  font-weight: normal;
}
.singleBox table {
  margin-top: 6.5rem;
  border-top: 2px solid #212121;
  border-bottom: 2px solid #212121;
  font-weight: normal;
  padding: 1% 3%;
  border-collapse: collapse;
  width: 100%;
  position: relative;
}
.singleBox table::before {
  content: "table";
  display: block;
  color: #fff;
  font-weight: bold;
  background-color: #212121;
  font-size: 1.3rem;
  position: absolute;
  top: -3.5rem;
  left: 0;
  width: 6rem;
  height: 3.5rem;
  text-align: center;
  line-height: 3.5rem;
  border-radius: 10px 10px 0 0;
}
.singleBox table tr td {
  border-bottom: 1px solid #999;
  padding: 1.6rem;
}
/* --- 640px以下（スマホ：1カラム） --- */
@media (max-width: 640px) {
  .single_container {
    max-width: 960px;
    margin: 0 auto;
    padding-top: clamp(70px, 6.25vw + 40px, 100px);
    padding-left: 0;
    padding-right: 0;
    padding-bottom: 0;
  }
}