#construction-example {
  padding: 0 10px;
}

#construction-example ul {
  list-style: none;
  padding: 0;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  align-items: center;
}

#construction-example li {
  margin: 15px auto;
  width: 100%;
  max-width: 400px;
  background: #fff;
  box-shadow: 0 2px 8px rgba(0,0,0,0.1);
  padding: 10px;
  border-radius: 8px;
  box-sizing: border-box;
}

#construction-example li img {
  display: block;
  margin: 0 auto 10px;
  max-width: 100%;
  height: auto;
}

#construction-example li p {
  text-align: left;
  line-height: 1.6;
  font-size: 14px;
  margin: 0;
}

#construction-example li dt {
  font-weight: bold;
  font-size: 16px;
  margin-bottom: 6px;
  color: #222;
}