:root {
  --bg-color: #f9f9f9;

  --item-bg-color: #ffffff;
  --appendix-bg-color: #fcf3d5;
  --appendix-icon-bg-color: #ff9e33;
  --appendix-text-color: #000;
  --appendix-item-color: #2563eb;
}

.header {
  background-color: var(--header-bg-color);
}

.top-page-header {
  background-color: var(--theme-color);
}

.searchbox {
  padding-top: 30px;
}

.home-article {
  padding-bottom: 70px;
}

.welcome_message {
  display: none;
  text-align-last: center;
  padding-top: 25px;
  margin-bottom: 10px;
  font-size: 1.5rem;
  font-weight: bold;
}

#search {
  position: static;
  top: 0;
  left: 0;
}
.page-pad {
  height: 56px;
}

.top-page {
  max-width: 1300px;
  margin: 0 auto 0 auto;
  width: 100%;
  overflow: hidden;
}

.top-page-card-group {
  display: flex;
  flex-flow: column;
  margin-left: 52px;
  margin-right: 0;
}

.top-page-category {
  font-weight: bold;
  margin: 38px 0 23px 8px;
}

.top-page-category-icon {
  font-size: 2.5rem;
  color: var(--theme-color);
  vertical-align: -8px;
}

.top-page-card {
  width: 300px;
  min-height: 50px;
  background-color: var(--item-bg-color);
  border: solid 1px var(--font-color);
  border-radius: 8px;
  padding: 16px;
  margin: 0 8px 8px 0;
  text-align: left;
  z-index: 1;
}
.top-page-card-anchor {
  text-decoration: none;
  color: var(--font-color);
}

.top-page-card-parent::after {
  content: "";
  float: right;
  margin-top: 5px;
  margin-right: -5px;
  width: 0.6em;
  height: 0.6em;
  border: 0.15em solid currentColor;
  border-left: 0;
  border-bottom: 0;
  transform: translateX(-25%) rotate(135deg);
}
.top-page-card:hover {
  background-color: var(--select-bg-color);
  cursor: pointer;
}
.top-page-card-selected {
  color: var(--select-color);
  border: solid 4px var(--select-color);
}
.top-page-card-selected::after {
  transform: rotate(315deg);
}
.top-page-card-selected:focus {
  box-shadow: none;
}

.top-page-panel {
  display: none;
  border: solid 4px var(--select-color);
  border-top: solid 1px var(--font-color);
  width: 300px;
  position: absolute;
  background-color: var(--item-bg-color);
  border-radius: 0 0 8px 8px;
  z-index: 10000;
}
.top-page-panel:focus {
  box-shadow: none;
}

.top-page-card-group ul {
  list-style: none;
  margin-left: 10px;
  margin-top: 14px;
  padding-top: 7px;
}

.top-page-panel a {
  color: var(--font-color);
}
.top-page-panel a:focus {
  box-shadow: none;
  outline: solid 2px var(--focus-color);
}
.top-page-panel li {
  padding: 0 0 4px 8px;
}

.top-page-item {
  display: inline-block;
  width: 276px;;
}
.top-page-item:hover,.top-page-item-selected {
  color: var(--select-color);
  background-color: var(--select-bg-color);
  cursor: pointer;
}
.top-page-item:hover::after,.top-page-item-selected::after {
  content: "";
  margin-top: 5px;
  margin-right: 5px;
  position: relative;
  display: inline-block;
  float: right;
  width: 0.8em;
  height: 0.8em;
  background-color: var(--select-color);
  clip-path: polygon(0% 45%, 86% 45%, 55% 0%, 65% 0%, 100% 50%, 65% 100%, 55% 100%, 86% 55%, 0% 55%);
}

.top-page-partition {
  width: 100%;
  height: 20px;
  margin-top: 12px;
  border-top: solid 1px var(--partition-color);
}


/* appendix */

.appendix-info {
  margin-top: 70px;
  margin-bottom: 0;
  padding: 25px 25px 25px 40px;
  background-color: var(--appendix-bg-color);
  display: flex;
  flex-flow: column;
}
.appendix-info h3 {
  font-size: 1.3rem;
  z-index: 2;
  border-bottom: 0;
}

.appendix-category-group:not(:last-child) {
  padding-right: 50px;
}

.appendix-category {
  white-space: nowrap;
  margin-top: 25px;
  margin-bottom: 8px;
}

.appendix-category-title {
  white-space: nowrap;
  padding-left: 8px;
  font-weight: bold;
  color: var(--appendix-text-color);
}

.appendix-category-icon-frame {
  display: inline-block;
  width: 60px;
  height: 60px;
  background-color: var(--appendix-icon-bg-color);
  border-radius: 50%;
}

.appendix-category-icon {
  padding-left: 12px;
  padding-top: 12px;
  font-size: 2.2rem;
  color: var(--appendix-text-color);
  vertical-align: -8px;
}

.appendix-link-item {
  line-height: 2em;
}

.appendix-link-item a {
  color: var(--appendix-item-color);
}

.appendix-category {
  border-bottom: 0;
}

.status-info {
  white-space: nowrap;
  font-size: 0.8rem;
  margin-left: 8px;
  padding: 0 0.5em;
  background-color: var(--status-bg-color);
}


/* 768px以上の設定 *****************************************************/
@media only screen and (min-width:768px){
  .welcome_message {
    display: block;
  }

  .searchbox {
    padding-top: 0;
  }

  .top-page-card-group {
    flex-flow: row wrap;
  }

  .appendix-info {
    flex-flow: row;
  }
}