@charset "UTF-8";
/*----------------------------------------
  Youtube 埋め込み動画 mixin
----------------------------------------*/
/*----------------------------------------
  browser default value
----------------------------------------*/
/*----------------------------------------
  base
----------------------------------------*/
/*----------------------------------------
  z-index
----------------------------------------*/
/*----------------------------------------
  color
----------------------------------------*/
/*----------------------------------------
  opacity
----------------------------------------*/
/*----------------------------------------
  size
----------------------------------------*/
/*----------------------------------------
  transition
----------------------------------------*/
.mainte_menu {
  width: 100%;
  background-color: #000000;
  text-align: center;
  padding: 40px 15px;
}

.mainte_menu_title {
  color: #ffffff;
  font-weight: bold;
  font-size: 2.2rem;
  margin-bottom: 30px;
}

.mainte_menu .anchor.o-red {
  text-align: left;
}

.mainte_qa_item {
  padding-top: 40px;
  padding-bottom: 60px;
  border-bottom: 1px solid #c1c1c1;
}

.mainte_qa_item:first-child {
  padding-top: 0;
}

.mainte_qa_item:last-child {
  padding-bottom: 0;
  border-bottom: none;
}

.mainte_qa_q {
  font-size: 2.4rem;
  font-weight: bold;
}

.mainte_qa_q::before {
  display: inline;
  content: 'Q.';
  font-size: 2.4rem;
  font-weight: bold;
}

.mainte_qa_a {
  margin-top: 15px;
  padding-left: 28px;
  text-indent: -26px;
  line-height: 1.6875;
}

.mainte_qa_a::before {
  display: inline;
  content: 'A.';
  font-size: 2.4rem;
  font-weight: bold;
}

.mainte_related_title {
  font-size: 2.4rem;
  font-weight: bold;
}

.mainte_related_list {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
}

.mainte_related_item {
  margin-top: 25px;
  transition: opacity 0.3s cubic-bezier(0.13, 0.78, 0.38, 0.98);
  width: 270px;
}

.mainte_related_item:hover {
  opacity: 0.7;
}

.mainte_related_item:hover .anchor {
  text-decoration: underline;
}

.mainte_related_name {
  font-weight: bold;
  color: #343434;
  font-size: 2.0rem;
  margin-bottom: 20px;
}

.mainte_related_lead {
  font-size: 1.6rem;
  color: #707070;
  margin-bottom: 15px;
}

.mainte_related_image_wrapper {
  margin-bottom: 20px;
}

.mainte_article {
  padding-top: 60px;
  padding-bottom: 100px;
}

.mainte_title {
  font-size: 4.2rem;
  font-weight: bold;
}

.mainte_title_wrapper {
  text-align: center;
  margin-bottom: 60px;
}

.mainte_title_description {
  font-size: 2.8rem;
  font-weight: bold;
  line-height: 1.4;
}

.mainte_horizontal_layout {
  display: flex;
  justify-content: space-between;
}

.mainte_horizontal_left {
  width: 470px;
}

.mainte_horizontal_right {
  flex: 1 1 670px;
  padding-left: 30px;
}

.main_title {
  margin-top: -54px;
  padding-top: 54px;
}

.section + .section {
  margin-top: 80px;
}

.section + .mainte_menu {
  margin-top: 80px;
}

.main_title_small {
  font-size: 2rem;
  font-weight: bold;
}

.mainte_horizontal_left.size_l {
  width: 770px;
  flex: 0 0 770px;
}

.mainte_horizontal_right.size_s {
  width: 370px;
}

.mainte_caution_item {
  color: #666666;
  font-size: 1.2rem;
  padding-left: 12px;
  text-indent: -12px;
}

.sec_text {
  margin: 20px 0;
}

.sec_list {
  margin: 20px 0 15px;
}

.sec_list:first-child {
  margin-top: 0;
}

.sec_list .list_item {
  list-style-type: disc;
  list-style-position: inside;
}

.list_bottom_img {
  margin-top: 20px;
}

.sec_block:not(:first-of-type) {
  margin-top: 30px;
}

.sec_block_title {
  margin-bottom: 15px;
  font-weight: bold;
}

.sec_block .block_note {
  margin-top: 15px;
  font-size: 1.2rem;
  color: #666666;
}

.sec_block .block_note .note_item {
  padding-left: 1em;
  position: relative;
}

.sec_block .block_note .note_item::before {
  content: '※';
  position: absolute;
  left: 0;
}

.sec_block .block_note.num_on {
  counter-reset: note-count;
}

.sec_block .block_note.num_on .note_item {
  padding-left: 2em;
  counter-increment: note-count;
}

.sec_block .block_note.num_on .note_item::before {
  content: "※" counter(note-count);
}

.sec_block .block_note.num_on.start_num_2 {
  counter-reset: note-count 1;
}

.sec_block .block_note.num_on.start_num_3 {
  counter-reset: note-count 2;
}

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