/* 1. セクション余白（単純に並べるだけ） */
.p-seminar-B__features,
.p-seminar-B__application,
.p-seminar-B__data,
.p-seminar-B__flow,
.p-seminar-B__faq {
  padding: 100px 0 80px;

  @media screen and (max-width: 767px) {
    padding: 90px 0 40px;
  }
}

.p-seminar-B__voice {
  padding: 100px 0 120px;

  @media screen and (max-width: 767px) {
    /* voiceセクションのSP版は下部が 16px */
    padding: 90px 0 16px;
  }
}

/* 2. 見出し（単純に並べるだけ） */
.p-seminar-B__head,
.p-seminar-B__head--features,
.p-seminar-B__head--present,
.p-seminar-B__head--seminar,
.p-seminar-B__head--data,
.p-seminar-B__head--voice,
.p-seminar-B__head--flow,
.p-seminar-B__head--faq,
.p-seminar-archive__merit-head,
.p-seminar-archive__merit-head--icon {
  
  /* & が上の10個のセレクタすべてに化けます */
  &::before { top: -28px; }
  &::after  { top: -70px; }

  &.p-seminar-B__head--flow::before {
    color: #fff;
  }
}