html {
    margin-top: 100px;
}

#header {
    display: none;
}

#subpage_header {
    position: fixed;
    z-index: 9999;
    width: 100%;
    height: 100px;
    line-height: 2%;
    font-size: 2em;
    text-align: center;
    background: #fff;
    box-sizing: border-box;
    filter: drop-shadow(1px 1px 10px rgba(51, 51, 51, 0.2));
    transition: .5s;
    display: flex;
    justify-content: space-between;
    align-items: center;
    box-sizing: border-box;
}

#subpage_header img {
    margin-top: -7px;
  }
  .header-logo {
    margin-top: -5px;
  }

.header-logo h2 {
  font-size: 0.9rem !important;
  text-align: right !important;
  padding-bottom: 3px !important;
  padding-right: 5px !important;
}

section:before {
    content: "";
    display: block;
    height: 100px; /* 調整したい高さ（固定ヘッダーの高さ） */
    margin-top: -100px; /* heightと同じ分のネガティブマージン */
    visibility: hidden;
  }

  @media (max-width: 460px) {

    .footer_top {
        margin-top: -100px;
    }

  }