:root {
  --investigation_report: #FF9900;
  --v4-0-1_compatible: #A3BCFF;
  --pci_dss_basic_explanation: #28B9B9;
  --security_measures: #346BFF;
  --payment_trends: #FF6666;
  --seminar: #999999;
  font-family: "Helvetica Neue", Arial, "Hiragino Kaku Gothic ProN", "Hiragino Sans", "Noto Sans JP", sans-serif;
}


/* ========================================
   Category List
======================================== */
.blogCatList {
  list-style: none;
  margin: 45px 0 0;
  align-items: flex-start;
  display: flex;
  gap: 16px;
}

ul.blogCatList li.blogCatList__item a.blogCatList__link {
  display: inline-flex !important;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 8px 16px;
  margin: 0 !important;
  border: 1px solid #333;
  border-radius: 8px;
  font-size: 14px;
  line-height: 1;
  color: #333;
  text-decoration: none;
  background: #fff;
  white-space: nowrap;
  box-sizing: border-box;
  opacity: 1 !important;
  transition: border-color 0.2s, color 0.2s !important;
  font-weight: 700;
}

ul.blogCatList li.blogCatList__item a.blogCatList__link:hover,
ul.blogCatList li.blogCatList__item a.blogCatList__link.is-active {
  border-color: #0ab2b0;
  color: #0ab2b0;
  opacity: 1 !important;
}

.blogCatList__dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  flex-shrink: 0;
}

.blogCatList__item:nth-child(1) {
  a {
    padding: 8px 19px !important;

    .blogCatList__dot {
      background: var(--investigation_report);
    }
  }
}

.blogCatList__item:nth-child(2) {
  a {
    padding: 8px 19px !important;

    .blogCatList__dot {
      background: var(--v4-0-1_compatible)
    }
  }
}

.blogCatList__item:nth-child(3) {
  a {
    padding: 8px 28.5px !important;

    .blogCatList__dot {
      background: var(--pci_dss_basic_explanation);
    }
  }
}

.blogCatList__item:nth-child(4) {
  a {
    padding: 8px 27px !important;

    .blogCatList__dot {
      background: var(--security_measures);
    }
  }
}

.blogCatList__item:nth-child(5) {
  a {
    padding: 8px 23px !important;

    .blogCatList__dot {
      background: var(--payment_trends);
    }
  }
}

.blogCatList__item:nth-child(6) {
  a {
    padding: 8px 19px !important;

    .blogCatList__dot {
      background: var(--seminar);
    }
  }
}

@media only screen and (max-width: 1023px) {
  .blogCatList {
    padding: 0 0 36px 0;
    flex-wrap: wrap;
    overflow-x: visible;
    gap: 8px;
  }

  ul.blogCatList li.blogCatList__item a.blogCatList__link {
    padding: 8px 12px !important;
    font-size: 12px;
  }
}

@media only screen and (max-width: 767px) {
  .blogCatList {
    margin: 36px 0 0;
    justify-content: center;
  }

}

.blog_contents_hd02 {
  padding: 45px 0 43px;
  color: #333;
  font-size: 28px;
  font-weight: 600;
  letter-spacing: 0.5px;
}

/* ========================================
   Single Post
======================================== */
.articleHead {
  margin-bottom: 36px;
  border-bottom: 1px solid #D9D9D9;
  padding: 0 0 12px;
}

.articleHead__meta {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 12px;
}

.articleHead .dateGroup {
  display: flex;
  align-items: center;
  gap: 12px;
}

.articleHead .date {
  display: flex;
  align-items: center;
  gap: 5px;
  font-size: 16px;
  font-family: 'Roboto', sans-serif;
  color: #999;
  margin: 0;
}

.articleHead .date .ico {
  width: 14px;
  height: 14px;
  flex-shrink: 0;
}

.articleHead__cat {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  color: #333;
  font-weight: 700;
}

.articleHead__catDot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #28B9B9;
  flex-shrink: 0;
}

.articleHead__cat.cat-investigation_report .articleHead__catDot {
  background: var(--investigation_report);
}

.articleHead__cat.cat-v4-0_compatible .articleHead__catDot {
  background: var(--v4-0-1_compatible);
}

.articleHead__cat.cat-pci_dss_basic_explanation .articleHead__catDot {
  background: var(--pci_dss_basic_explanation);
}

.articleHead__cat.cat-security_measures .articleHead__catDot {
  background: var(--security_measures);
}

.articleHead__cat.cat-payment_trends .articleHead__catDot {
  background: var(--payment_trends);
}

.articleHead__cat.cat-seminar .articleHead__catDot {
  background: var(--seminar);
}

.articleHead__title {
  font-size: 28px;
  font-weight: 700;
  line-height: 1.6;
  color: #333;
  margin: 0 0 16px;
}

.articleBottom__share {
  display: flex;
  justify-content: center;
  border-top: 1px solid #D9D9D9;
  padding: 28px 0 48px;
  gap: 12px;
}

.articleBottom__share p {
  margin-bottom: 0 !important;
}

.articleHead__share {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 12px;
  margin-top: 16px;
}

.shareBtn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 24px;
  height: 24px;
  flex-shrink: 0;
}

.shareBtn img {
  width: 24px;
  height: 24px;
  display: block;
}

/* ========================================
   Pick Up Slider
======================================== */
.blogPickupArea {
  background: #fff;
  padding: 48px 0 0;
}

.blogPickupArea__head {
  max-width: 960px;
  margin: 0 auto;
  padding: 0 40px 0;
}

.blogPickupArea__title {
  font-size: 1.75rem;
  font-weight: 700;
  color: #1a1a2e;
  margin: 0 0 8px;
  line-height: 1.3;
}

.blogPickupArea__lead {
  font-size: 16px;
  color: #333;
  margin: 0;
  font-weight: 700;
}

.pickupSlider {
  padding: 45px 0;
  position: relative;
}

.pickupSlider__label {
  position: absolute;
  top: 11px;
  left: calc(50% - 480px + 29px);
  font-size: 35px;
  font-family: 'Roboto', sans-serif;
  font-weight: 700;
  color: #0ab2b0;
  margin: 0;
  z-index: 1;
}

#blogPickup .splide__slide.is-active {
  opacity: 1;
}


.pickupSlide {
  display: flex !important;
  flex-direction: row;
  align-items: center;
  background: #E9F7F8;
  text-decoration: none;
  color: #333;
  overflow: hidden;
  border-radius: 4px;
  padding: 36px 60px;
  min-height: 259px;
  box-sizing: border-box;
}

.pickupSlide:hover {
  color: #333;
  text-decoration: none;
}

.pickupSlide__body {
  flex: 1;
  min-width: 0;
  padding-right: 40px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 12px;
}

.pickupSlide__cat {
  font-size: .75rem;
  color: #333;
  margin: 0;
  display: flex;
  align-items: center;
  gap: 6px;
  line-height: 1.4;
  font-weight: 700;
}

.pickupSlide__cat::before {
  content: '';
  display: block;
  width: 8px;
  height: 8px;
  background: #0ab2b0;
  flex-shrink: 0;
  border-radius: 50px;
}

.pickupSlide__title {
  font-size: 1.125rem;
  font-weight: 700;
  line-height: 1.65;
  margin: 0;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.pickupSlide__tags {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0;
  padding: 0;
}

.pickupSlide__tag {
  font-size: 12px;
  font-weight: 700;
  color: #0ab2b0;
  background: #fff;
  padding: 6px 8px;
  border-radius: 20px;
}

.pickupSlide__img {
  flex-shrink: 0;
}

.pickupSlide__img img {
  display: block;
}

#blogPickup .splide__arrow {
  background: transparent;
  border: none;
  opacity: 1;
  width: 40px;
  height: 40px;
  padding: 0;
  top: 50%;
  transform: translateY(-50%);
}

#blogPickup .splide__arrow:hover {
  background: transparent;
  opacity: 0.75;
}

#blogPickup .splide__arrow:focus img {
  filter: drop-shadow(2px 4px 6px rgba(0, 0, 0, 0.3));
}

#blogPickup .splide__arrow svg {
  display: none;
}

#blogPickup .splide__arrow img {
  width: 40px;
  height: 40px;
  display: block;
}

#blogPickup .splide__arrow--prev {
  left: calc(50% - 500px);
}

#blogPickup .splide__arrow--next {
  right: calc(50% - 500px);
}

.pickupPagNav {
  background: transparent;
  border: none;
  cursor: pointer;
  padding: 0;
  width: 12px;
  height: 20px;
  flex-shrink: 0;
  display: flex;
  align-items: center;
}

.pickupPagNav img {
  width: 12px;
  height: 20px;
  display: block;
}

.pickupPagArea {
  position: absolute;
  bottom: -40px;
  left: 0;
  right: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 20px;
}

#blogPickup .splide__pagination {
  position: static;
  padding: 0;
  display: flex;
  align-items: center;
  gap: 8px;
}

#blogPickup .splide__pagination__page {
  background: #ccc;
  width: 20px;
  height: 3px;
  border-radius: 2px;
  transition: background 0.3s, width 0.3s;
}

#blogPickup .splide__pagination__page.is-active {
  background: #0ab2b0;
  width: 36px;
  transform: none;
}

@media only screen and (max-width: 1365px) {

  /* fixedWidth: 85vw → 左端は 50% - 42.5vw */
  .pickupSlider__label {
    left: calc(50% - 42.5vw);
  }
}

@media only screen and (max-width: 1023px) {
  .blogPickupArea__head {
    padding: 0 20px 24px;
  }

  #blogPickup .splide__arrow img {
    width: 28px;
    height: 28px;
    display: block;
  }

  /* fixedWidth: 88vw → 左端は 50% - 44vw */
  .pickupSlider__label {
    left: calc(50% - 44vw);
  }

  .pickupSlider {
    padding: 40px 0 54px;
  }

  .blogPickupArea__title {
    font-size: 1.375rem;
  }

  .pickupSlide__body {
    padding: 24px 0;
  }

  .blog_item {
    margin: 0 0 16px 0;
    flex-direction: column;
    gap: 8px;
  }

  .blog_contents_hd02 {
    display: none;
  }

  .blog_item .date {
    width: auto !important;
    text-align: left !important;
    display: flex;
    align-items: end;
    gap: 8px;
    line-height: 0.8;
  }

  .blog_item .month-day {
    display: inline;
    font-size: 28px !important;
    line-height: 1 !important;
  }

  .blog_item .year {
    display: inline;
    font-size: 14px !important;
    margin-bottom: 0 !important;
    font-weight: 500 !important;
    line-height: 1 !important;
  }

  .blog_item .body {
    min-width: 0 !important;
    overflow: hidden;
    word-break: break-word;
    border-bottom: 1px solid #28B9B9;
    border-left: none !important;
    padding-bottom: 18px;
    padding-left: 0 !important;
  }

  .pickupSlider {
    padding: 16px 0 54px;
  }

  .pickupSlider__label {
    position: absolute;
    left: 23px;
    top: -10px;
    padding: 0 0 12px;
    font-size: 28px;
  }

  .pickupSlide {
    flex-direction: column-reverse;
    padding: 24px 48px 0;
    align-items: stretch;
    min-height: 0;
    height: 100%;
    box-sizing: border-box;
  }

  .pickupSlide__img {
    width: 100%;
  }

  .pickupSlide__img img {
    width: 100%;
    height: auto;
    display: block;
  }

  #blogPickup .splide__arrow--prev {
    left: 8px;
  }

  #blogPickup .splide__arrow--next {
    right: 8px;
  }
}

.tagGroup {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 8px;
}

.tagGroup span.tag {
  display: inline-block;
  padding: 0;
}

.tagGroup .tag a {
  display: inline-block;
  font-size: 12px !important;
  font-weight: 500 !important;
  color: #28B9B9;
  border: none !important;
  background-color: rgba(38, 175, 175, 0.1);
  border-radius: 20px;
  padding: 6px 8px !important;
  text-decoration: none;
  line-height: 1.4;
}

.tagGroup .tag a:hover {
  background: rgba(38, 175, 175, 0.2);
  color: #28B9B9;
}


/* ========================================
   Sidebar
======================================== */
.sidebar {
  max-width: 293px;
  width: 100%;
}

.sidebar h2 {
  max-width: 293px;
  width: 100%;
  background: #28B9B9;
  color: #fff;
  text-align: center;
  padding: 8px 0;
  border-radius: 8px;
  line-height: 1.3;
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 20px;
}

.sidebar .latest,
.sidebar .popularity,
.sidebar .keyword {
  margin-top: 36px;
}

/* サイドバー 共通リストリセット */
.sidebar>ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.sidebar>ul>li {
  list-style: none;
}

.sidebar h2+ul li:first-child {
  padding-top: 0;
}

/* カテゴリー */
.sidebar h2.category+ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.sidebar h2.category+ul li {
  list-style: none;
  padding: 6px 0 6px 18px;
  border: none;
  position: relative;
  font-size: 16px;
  font-weight: 700;
}

.sidebar h2.category+ul li:first-child {
  border-top: none;
  padding-top: 0;
}

.sidebar h2.category+ul li:last-child {
  padding: 6px 0 0 18px;
}

.sidebar h2.category+ul li::before {
  content: '';
  display: block;
  width: 8px;
  height: 8px;
  position: absolute;
  left: 2px;
  top: 50%;
  transform: translateY(-50%);
  background: #28B9B9;
  border-radius: 50px;
}

.sidebar h2.category+ul li.cat-investigation_report::before {
  background: var(--investigation_report);
}

.sidebar h2.category+ul li.cat-v4-0-1_compatible::before {
  background: var(--v4-0-1_compatible);
}

.sidebar h2.category+ul li.cat-pci_dss_basic_explanation::before {
  background: var(--pci_dss_basic_explanation);
}

.sidebar h2.category+ul li.cat-security_measures::before {
  background: var(--security_measures);
}

.sidebar h2.category+ul li.cat-payment_trends::before {
  background: var(--payment_trends);
}

.sidebar h2.category+ul li.cat-seminar::before {
  background: var(--seminar);
}

.sidebar h2.category+ul li a {
  color: #333;
  text-decoration: none;
  font-size: 16px;
}

.sidebar h2.category+ul li a:hover {
  color: #28B9B9;
}

/* 最新記事 */
.sidebar h2.latest+ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.sidebar h2.latest+ul li {
  list-style: none;
  padding: 14px 4px 2px;
  border-bottom: none;
}

.sidebar h2.latest+ul li:first-child {
  border-top: none;
  padding: 0 4px 2px;
}

.sidebar h2.latest+ul .post-date {
  display: block;
  color: #28B9B9;
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 5px;
  font-family: 'Roboto', sans-serif;
}

.sidebar h2.latest+ul li a {
  display: block;
  color: #333;
  text-decoration: none;
  font-size: 14px;
  line-height: 1.6;
}

.sidebar h2.latest+ul li a:hover {
  color: #28B9B9;
}

/* 人気の記事 */
.sidebar h2.popularity+ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.sidebar h2.popularity+ul li {
  list-style: none;
  padding: 12px 0;
  border-bottom: none;
}

.sidebar h2.popularity+ul li:first-child {
  border-top: none;
}

.sidebar .rank-header {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 6px;
}

.sidebar .rank-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 4px 10px;
  border-radius: 20px;
  font-size: 16px;
  font-weight: 700;
  font-family: 'Roboto', sans-serif;
  color: #FFF;
  white-space: nowrap;
  line-height: 1;
}

.sidebar .rank-1 .rank-badge {
  background-color: #E8B84B;
}

.sidebar .rank-2 .rank-badge {
  background-color: #B4B1AB;
}

.sidebar .rank-3 .rank-badge {
  background-color: #E09B7A;
}

.sidebar .rank-cat {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-size: 12px;
  color: #333;
  background: none;
  padding: 0;
  font-weight: 700;
}

.sidebar .rank-cat::before {
  content: '';
  display: inline-block;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: #28B9B9;
  flex-shrink: 0;
}

.sidebar .rank-cat.cat-investigation_report::before {
  background: var(--investigation_report);
}

.sidebar .rank-cat.cat-v4-0_compatible::before {
  background: var(--v4-0-1_compatible);
}

.sidebar .rank-cat.cat-pci_dss_basic_explanation::before {
  background: var(--pci_dss_basic_explanation);
}

.sidebar .rank-cat.cat-security_measures::before {
  background: var(--security_measures);
}

.sidebar .rank-cat.cat-payment_trends::before {
  background: var(--payment_trends);
}

.sidebar .rank-cat.cat-seminar::before {
  background: var(--seminar);
}

.sidebar h2.popularity+ul li a {
  display: block;
  color: #333;
  text-decoration: none;
  font-size: 14px;
  line-height: 1.6;
}

.sidebar h2.popularity+ul li a:hover {
  color: #28B9B9;
}

/* キーワード */
.sidebar h2.keyword+ul {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 10px 8px;
}

.sidebar h2.keyword+ul a {
  display: inline-block;
  font-size: 12px !important;
  font-weight: 500;
  color: #28B9B9;
  border: none;
  background-color: rgba(38, 175, 175, 0.1);
  border-radius: 20px;
  padding: 6px 8px;
  text-decoration: none;
  line-height: 1.4;
}

.sidebar h2.keyword+ul a:hover {
  background: rgba(38, 175, 175, 0.2);
  color: #28B9B9;
}

/* ========================================
   Blog Layout (moved from common.css)
======================================== */
.blog_contents {
  max-width: 960px;
  width: 100%;
  margin: 0 auto;
}

.content_outline {
  display: grid;
  gap: 41px;
  grid-template-columns: 2fr 1fr;
  padding-bottom: 120px;
}

#content_inner {
  width: 100%;
  margin: 0 auto;
  padding: 0 0 75px 0;
}

@media only screen and (min-width: 1024px) {
  #content_inner {
    max-width: 627px;
  }
}

/* ========================================
   Blog Item
======================================== */
.blog_item {
  display: flex;
  gap: 20px;
  margin-bottom: 0;
  padding-bottom: 36px;
  border-bottom: none;
}

.blog_item .date {
  width: 110px;
  flex-shrink: 0;
  text-align: right;
}

.blog_item .month-day {
  display: block;
  font-size: 40px;
  font-weight: 700;
  font-family: 'Roboto', sans-serif;
  color: #28B9B9;
  line-height: 1;
  text-align: right;
}

.blog_item .year {
  display: block;
  font-size: 22px;
  font-family: 'Roboto', sans-serif;
  color: #28B9B9;
  text-align: right;
  margin-bottom: 10px;
  font-weight: 500;
}

.blog_item .cat-badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 11px;
  color: #333;
  text-decoration: none;
  line-height: 1.5;
}

.blog_item .cat-badge::before {
  content: '';
  width: 8px;
  height: 8px;
  background: #0ab2b0;
  flex-shrink: 0;
  border-radius: 50px;
}

.blog_item .cat-badge.cat-investigation_report::before {
  background-color: var(--investigation_report);
}

.blog_item .cat-badge.cat-v4-0_compatible::before {
  background-color: var(--v4-0-1_compatible);
}

.blog_item .cat-badge.cat-pci_dss_basic_explanation::before {
  background-color: var(--pci_dss_basic_explanation);
}

.blog_item .cat-badge.cat-security_measures::before {
  background-color: var(--security_measures);
}

.blog_item .cat-badge.cat-payment_trends::before {
  background-color: var(--payment_trends);
}

.blog_item .cat-badge.cat-seminar::before {
  background-color: var(--seminar);
}

.blog_item .body {
  flex: 1;
  min-width: 0;
  padding-left: 20px;
  border-left: 1px solid #28B9B9;
}

.blog_item h2 {
  margin-bottom: 8px;
  font-size: 18px;
}

.blog_item h2 a {
  color: #333;
  font-weight: bold;
  text-decoration: none;
}

.blog_item h2 a:hover {
  color: #28B9B9;
}

.blog_item .tagGroup {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
  margin-bottom: 0;
}

/* ========================================
   Pagination / Buttons
======================================== */
.wp-pagenavi {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  margin: 30px 0;
}

.wp-pagenavi a,
.wp-pagenavi span {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  font-size: 15px;
  font-weight: 700;
  text-decoration: none;
  border: 1px solid #28B9B9;
  color: #28B9B9;
  transition: all 0.2s ease;
  box-sizing: border-box;
}

.wp-pagenavi span.current {
  background: #28B9B9;
  color: #fff;
  border-color: #28B9B9;
}

.wp-pagenavi a:hover {
  background: #28B9B9;
  color: #fff;
}

.wp-pagenavi span.extend {
  border: none;
  width: auto;
}

.wp-pagenavi a.previouspostslink,
.wp-pagenavi a.nextpostslink {
  font-size: 0;
  border: none;
  background-color: transparent;
  background-repeat: no-repeat;
  background-position: center;
  background-size: contain;
  width: 24px;
  height: 14px;
}

.wp-pagenavi a.previouspostslink {
  background-image: url('/img/blog/wp_pagenavi_previous.svg');
}

.wp-pagenavi a.nextpostslink {
  background-image: url('/img/blog/wp_pagenavi_next.svg');
}

.wp-pagenavi a.previouspostslink:hover,
.wp-pagenavi a.nextpostslink:hover {
  background-color: transparent;
  filter: drop-shadow(2px 5px 2px rgba(0, 0, 0, 0.25));
}

.bt_top,
.bt_prev {
  text-align: center;
}

.bt_top .bt,
.bt_prev .bt {
  display: inline-block;
  width: 192px;
  font-size: 14px;
  font-weight: bold;
  line-height: 42px;
}

/* ========================================
   Article
======================================== */
.article {
  margin-bottom: 40px;
  counter-reset: h2Num;
  font-size: 16px;
  line-height: 1.5;
  letter-spacing: 0.05em;
}

.article h2 {
  margin-bottom: 36px;
  padding-left: 0;
  border-bottom: 1px solid #00bfcc;
  border-left: none;
  font-size: 20px;
}

.article h3 {
  margin-bottom: 18px;
  font-size: 18px;
}

.article h2.is-numActive {
  counter-reset: nestedNum;
}

.article h2.is-numActive::before,
.article h3.is-numActive::before {
  display: inline-block;
  margin-right: 16px;
  color: #28b9b9;
  font-weight: 700;
  font-family: 'Roboto';
}

.article h2.is-numActive::before {
  counter-increment: h2Num;
  content: counter(h2Num);
  font-size: 24px;
}

.article h3.is-numActive::before {
  counter-increment: nestedNum;
  content: counter(h2Num) "."counter(nestedNum);
  font-size: 20px;
}

.article h3.is-numActive {
  padding-bottom: 18px;
}

.article h4 {
  font-size: 16px;
  margin-bottom: 36px;
}

.article h4::before {
  content: "ー";
  margin-right: 4px;
  color: #28b9b9;
  font-weight: 700;
}

.article ul {
  padding-left: 0;
  margin-bottom: 36px;
  margin-left: 24px;
}

.article ul li {
  list-style: none;
  position: relative;
  padding-left: 20px;
  margin-bottom: 8px;
  line-height: 1.7;
}

.article ul li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.6em;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #28b9b9;
  flex-shrink: 0;
}

.article p {
  margin-bottom: 25px;
}

.article iframe {
  max-width: 100%;
}

/* ========================================
   Table of Contents (Easy Table of Contents)
======================================== */
/* .article のリストスタイルが目次に干渉しないようリセット */
.article #ez-toc-container ul li {
  position: static;
  padding-left: 0;
  margin-bottom: 0;
  line-height: inherit;
}

.article #ez-toc-container ul li::before {
  display: none !important;
  content: none !important;
}

#ez-toc-container {
  padding: 24px 32px 28px;
  background: #f8f8f8;
  border: none;
  margin-bottom: 32px;
}

/* タイトル */
#ez-toc-container .ez-toc-title-container {
  text-align: left;
}

#ez-toc-container .ez-toc-title {
  display: inline-block;
  padding: 0 0 20px;
  color: #28b9b9;
  font-size: 18px;
  font-weight: 700;
  margin: 0;
}

#ez-toc-container .ez-toc-title::before,
#ez-toc-container .ez-toc-box-title::before {
  content: "";
  display: inline-block;
  position: relative;
  top: -2px;
  width: 24px;
  height: 24px;
  margin-right: 8px;
  background: url(/img/blog/icon_index.svg) no-repeat center / cover;
  vertical-align: middle;
}

/* hideボタン非表示 */
#ez-toc-container .ez-toc-title-toggle {
  display: none;
}

/* リスト */
#ez-toc-container ul.ez-toc-list {
  list-style: none !important;
  padding: 0;
  margin: 0;
  counter-reset: toc-h2;
}

#ez-toc-container ul li {
  list-style: none !important;
}

#ez-toc-container ul.ez-toc-list>li {
  counter-increment: toc-h2;
}

/* リンク */
#ez-toc-container ul li a {
  display: flex;
  align-items: flex-start;
  padding: 8px 0;
  border-bottom: 1px solid #e0e0e0;
  color: #333;
  font-size: 15px;
  text-decoration: none;
  box-shadow: none;
}

#ez-toc-container ul li a:hover {
  color: #28b9b9;
}

/* カウンター番号（a::before 疑似要素で生成） */
#ez-toc-container ul.ez-toc-list>li>a::before {
  content: counter(toc-h2);
  float: none !important;
  flex-shrink: 0;
  margin-right: 14px;
  color: #28b9b9;
  font-size: 18px;
  font-weight: 700;
  font-family: 'Roboto', sans-serif;
  line-height: 1.5;
}

/* サブ階層（H3以下） */
#ez-toc-container ul ul {
  margin: 0 0 0 20px;
  padding: 0;
  counter-reset: toc-h3;
}

#ez-toc-container ul ul li {
  counter-increment: toc-h3;
}

#ez-toc-container ul ul li a {
  padding: 7px 0;
  font-size: 13px;
}

#ez-toc-container ul ul li a::before {
  content: counter(toc-h2) "."counter(toc-h3);
  font-size: 14px;
  line-height: 1.5;
  color: #28b9b9;
  font-weight: 700;
  font-family: 'Roboto', sans-serif;
  padding-right: 12px;
}

/* ========================================
   Share / Facebook
======================================== */
.shareGroup {
  margin-bottom: 40px;
}

.shareGroup li {
  display: inline-block;
  padding-right: 8px;
  vertical-align: top;
}

.facebookBox .inner {
  display: table;
  width: 100%;
  margin-bottom: 40px;
  background: #484c4d;
  color: #fff;
}

.facebookBox .img {
  display: table-cell;
  width: 50%;
  background: url(/img/img_fb.jpg) no-repeat center center;
  background-size: cover;
}

.facebookBox .body {
  display: table-cell;
  width: 50%;
  padding: 24px;
  text-align: center;
  vertical-align: middle;
}

.facebookBox .body .h {
  margin-bottom: 16px;
  font-size: 18px;
  line-height: 1.3;
}

.facebookBox .body .note {
  margin-top: 16px;
  font-size: 12px;
}

/* ========================================
   Breadcrumb
======================================== */
.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  margin: -36px 0 24px;
  font-size: 12px;
}

.breadcrumb li {
  margin-right: 8px;
}

.breadcrumb li:not(:last-child)::after {
  content: ">";
  position: relative;
  top: -1px;
  margin-left: 8px;
  color: #30bbbb;
}

.breadcrumb a {
  color: #333;
}

.breadcrumb a:hover {
  opacity: 1;
  color: #28b9b9;
}

.breadcrumb .homeIco {
  position: relative;
  top: -2px;
}

.breadcrumb.-index {
  max-width: 960px;
  margin: 24px auto 0;
  padding: 0 24px;
}

.single .aioseo-breadcrumbs {
  padding-bottom: 101px !important;
}

/* ========================================
   Related Posts カスタムデザイン
======================================== */
/* .article h3 の干渉をリセット */
.article .rp4wp-related-posts h3 {
  font-size: 20px;
  margin-bottom: 16px;
  padding-bottom: 0;
  border-bottom: none;
}

.article .rp4wp-related-posts h3::before {
  content: none !important;
  display: none !important;
}

.rp4wp-related-posts {
  margin-top: 40px;
}

.rp4wp-related-posts>h3 {
  font-size: 20px;
  font-weight: 600;
  color: #333;
  margin-bottom: 16px;
  padding-bottom: 12px;
  border-bottom: 1px solid #E8E8E8;
}

.rp4wp-related-post {
  background-color: #E9F7F8;
  border-radius: 8px;
  padding: 24px;
  margin-bottom: 12px;
  /* box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06); */
}

.rp4wp-post-meta {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 8px;
}

.rp4wp-date {
  font-size: 16px;
  font-weight: 700;
  font-family: 'Roboto', sans-serif;
  color: #0ab2b0;
}

.rp4wp-cat {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-size: 12px;
  color: #333;
}

.rp4wp-cat-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #28B9B9;
  flex-shrink: 0;
}

.rp4wp-cat.cat-investigation_report .rp4wp-cat-dot {
  background: var(--investigation_report);
}

.rp4wp-cat.cat-v4-0_compatible .rp4wp-cat-dot {
  background: var(--v4-0-1_compatible);
}

.rp4wp-cat.cat-pci_dss_basic_explanation .rp4wp-cat-dot {
  background: var(--pci_dss_basic_explanation);
}

.rp4wp-cat.cat-security_measures .rp4wp-cat-dot {
  background: var(--security_measures);
}

.rp4wp-cat.cat-payment_trends .rp4wp-cat-dot {
  background: var(--payment_trends);
}

.rp4wp-cat.cat-seminar .rp4wp-cat-dot {
  background: var(--seminar);
}

h4.rp4wp-post-title::before {
  content: "";
  margin-right: 0;
}

.rp4wp-post-title {
  font-size: 18px !important;
  font-weight: 600;
  line-height: 1.6;
  margin: 0 0 16px 0 !important;
}

.rp4wp-post-title a {
  color: #333;
  text-decoration: none;
  font-size: 18px;
}

.rp4wp-post-title a:hover {
  color: #0ab2b0;
}

.rp4wp-related-post .tagGroup .tag a {
  background-color: #fff;
}

.rp4wp-footer {
  display: flex;
  justify-content: flex-end;
  margin-top: 64px;
  margin-right: 41px;
}

.rp4wp-top-btn {
  display: inline-block;
  background: #0ab2b0;
  color: #fff;
  font-size: 14px;
  font-weight: 600;
  padding: 12px 24px;
  border-radius: 4px;
  text-decoration: none;
}

.rp4wp-top-btn:hover {
  background: #089e9c;
  color: #fff;
  opacity: 1;
}

/* AIOSEOパンくず：ホームをSVGアイコンに置き換え */
.aioseo-breadcrumbs {
  padding: 0 0 0 26px;
}

.aioseo-breadcrumbs .aioseo-breadcrumb:first-child a {
  font-size: 0;
  line-height: 0;
  display: inline-flex;
  align-items: center;
}

.aioseo-breadcrumbs .aioseo-breadcrumb:first-child a::before {
  content: '';
  display: inline-block;
  width: 12px;
  height: 12px;
  background: url('/images/icon_breadcrumbs_home.svg') no-repeat center / contain;
}

span.aioseo-breadcrumb a {
  font-size: 12px;
}

.aioseo-breadcrumb-separator {
  font-size: 0;
  display: inline-flex;
  align-items: center;
  margin: 0 12px;
}

.aioseo-breadcrumb-separator::before {
  content: '';
  display: inline-block;
  width: 5px;
  height: 10px;
  background: url('/images/icon_breadcrumb_arrow.svg') no-repeat center / contain;
}

#contents .lwptoc_i {
  padding: 31px 36px 44px;
  background: #f8f8f8;
}

#contents .lwptoc_item a {
  display: flex;
  align-items: flex-start;
  padding: 5px 0;
  border-bottom: 1px solid #D9D9D9 !important;
  color: #333;
  font-size: 16px;
}

#contents .lwptoc_title {
  display: flex;
  padding: 0 5px 6px;
  border-bottom: none;
  color: #333;
  font-size: 18px;
  font-weight: 500;
  align-items: center;
}

/* ========================================
   Responsive
======================================== */

/* 1365px: レイアウト余白を調整 */
@media only screen and (max-width: 1365px) {
  .blog_contents {
    padding: 0 20px;
    box-sizing: border-box;
  }
}

/* 1023px: サイドバーを下へ */
@media only screen and (max-width: 1023px) {
  .blog_contents {
    padding: 0;
  }

  .content_outline {
    grid-template-columns: 1fr;
    gap: 0;
    padding-bottom: 60px;
  }

  #content_inner {
    padding-left: 20px;
    padding-right: 20px;
  }

  .sidebar {
    width: 100%;
    max-width: 100%;
    border-top: none;
    padding-top: 0;
    margin-bottom: 60px;
    box-sizing: border-box;
  }

  .sidebar .latest,
  .sidebar .popularity,
  .sidebar .keyword {
    margin-top: 18px;
  }
}

/* 787px: パンくず調整 */
@media only screen and (max-width: 787px) {
  .single .aioseo-breadcrumbs {
    padding-bottom: 30px !important;
    padding-left: 13px;
    padding-right: 13px;
  }
}

/* 767px: モバイル調整 */
@media only screen and (max-width: 1023px) {
  .blog_contents {
    padding: 0;
    box-sizing: border-box;
    max-width: 100%;
    overflow-x: hidden;
  }

  .articleHead__title {
    font-size: 16px;
  }

  span.aioseo-breadcrumb {
    font-size: 12px;
  }

  .article {
    font-size: 14px;
    padding: 0;
  }

  .article .rp4wp-related-posts h3 {
    font-size: 18px;
  }

  .rp4wp-post-title a {
    font-size: 16px;
  }

  .tagGroup span.tag {
    font-size: 11px;
  }

  .tagGroup .tag a {
    font-size: 11px !important;
  }

  .sidebar h2.category+ul li a {
    font-size: 14px;
  }

  #contents .lwptoc_title {
    padding: 0 0 6px;
    font-size: 16px;
  }

  #contents .lwptoc_item a {
    font-size: 14px;
  }

  #contents .lwptoc_itemWrap .lwptoc_itemWrap a {
    font-size: 12px;
  }

  .blogPickupArea__lead {
    font-size: 10px;
    color: #333;
    margin: 0;
    font-weight: 700;
  }

  .content_outline {
    grid-template-columns: 1fr;
    gap: 0;
    width: 100%;
    overflow: hidden;
  }

  #content_inner {
    max-width: 100%;
    padding: 0 16px 40px;
    overflow: hidden;
    box-sizing: border-box;
  }

  .sidebar h2 {
    font-size: 16px;
    padding: 12px 44px 12px 16px;
    box-sizing: border-box;
    width: 100%;
    max-width: 100%;
  }

  .sidebar h2.category,
  .sidebar h2.latest,
  .sidebar h2.popularity,
  .sidebar h2.keyword {
    border-radius: 0;
  }

  .sidebar h2.category+ul,
  .sidebar h2.latest+ul,
  .sidebar h2.popularity+ul,
  .sidebar h2.keyword+ul {
    list-style: none;
    padding: 0 24px;
  }

}