.ninbai-series_nav {
  margin: 28px 0;
  padding: 20px 18px;
  border: 1px solid rgba(184, 135, 36, 0.35);
  border-radius: 12px;
  background: linear-gradient(135deg, #f7f2e8 0%, #fffaf1 100%);
}

.ninbai-series_nav-kicker {
  margin: 0 0 4px;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.12em;
  color: #7a6840;
}

.ninbai-series_nav-title {
  margin: 0 0 6px;
  font-size: 18px;
  color: #0c2d44;
}

.ninbai-series_nav-sub {
  margin: 0 0 14px;
  font-size: 13px;
  line-height: 1.65;
  color: #3f4d5c;
}

.ninbai-series_nav-list {
  margin: 0;
  padding: 0;
  list-style: none;
}

.ninbai-series_nav-item + .ninbai-series_nav-item {
  margin-top: 6px;
}

.ninbai-series_nav-item a {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  padding: 10px 12px;
  border-radius: 8px;
  text-decoration: none;
  color: #0c2d44;
  font-size: 14px;
  line-height: 1.5;
  background: rgba(255, 255, 255, 0.72);
  border: 1px solid transparent;
}

.ninbai-series_nav-item a:hover,
.ninbai-series_nav-item.is-current a {
  border-color: rgba(184, 135, 36, 0.45);
  background: rgba(242, 216, 163, 0.25);
}

.ninbai-series_num {
  flex: 0 0 auto;
  font-size: 11px;
  font-weight: 700;
  color: #b88724;
}

.ninbai-series_nav-hub {
  margin: 12px 0 0;
  font-size: 13px;
}

.ninbai-series_next ul,
.ninbai-series_lps ul {
  margin: 0;
  padding-left: 1.2em;
}

.ninbai-series_next li + li,
.ninbai-series_lps li + li {
  margin-top: 6px;
}

.ninbai-series_hub-card {
  margin: 24px 0;
  padding: clamp(22px, 4vw, 28px);
  border-radius: 16px;
  background: linear-gradient(145deg, #0a2740 0%, #123c5a 48%, #0c2d44 100%);
  color: #fffaf1;
  border: 1px solid rgba(242, 216, 163, 0.22);
  box-shadow: 0 12px 40px rgba(12, 45, 68, 0.16);
  display: flex;
  flex-direction: column;
  gap: 0;
}

/* コラム一覧のみ：見出し＋説明＋CTAのみのコンパクトカード */
.ninbai-blog-list_page .ninbai-series_hub-card {
  max-width: 100%;
}

.ninbai-blog-list_page .ninbai-series_hub-card > h1,
.ninbai-blog-list_page .ninbai-series_hub-card > h2,
.ninbai-blog-list_page .ninbai-series_hub-card > h3 {
  margin-bottom: 12px;
}

.ninbai-blog-list_page .ninbai-series_hub-card > p {
  max-width: none;
  margin: 0;
  flex: 1 1 auto;
}

.ninbai-series_hub-kicker {
  margin: 0 0 8px;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.14em;
  color: #e8c97a;
}

.ninbai-series_hub-card h1,
.ninbai-series_hub-card h2 {
  margin: 0 0 10px;
  font-size: clamp(20px, 4vw, 26px);
  line-height: 1.45;
  color: #fffaf1;
}

.ninbai-series_hub-lead {
  margin: 0 0 12px;
  font-size: 15px;
  line-height: 1.65;
  color: #f2d8a3;
  font-weight: 600;
}

.ninbai-series_hub-card > p:not(.ninbai-series_nav-hub):not(.ninbai-series_hub-lead):not(.ninbai-series_hub-kicker) {
  margin: 0 0 20px;
  font-size: 14px;
  line-height: 1.75;
  color: rgba(255, 250, 241, 0.88);
  max-width: 62ch;
}

.ninbai-knowledge_page > .content:has(> .ninbai-series_hub-card) .ninbai-series_hub-card > p:not(.ninbai-series_hub-lead):not(.ninbai-series_hub-kicker) {
  max-width: none;
}

.ninbai-series_hub-card .ninbai-series_nav-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 12px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.ninbai-series_hub-card .ninbai-series_nav-item {
  margin: 0;
}

.ninbai-series_hub-card .ninbai-series_nav-item + .ninbai-series_nav-item {
  margin-top: 0;
}

.ninbai-series_hub-card .ninbai-series_nav-item a {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 8px;
  height: 100%;
  min-height: 84px;
  padding: 14px 16px;
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(242, 216, 163, 0.2);
  color: #fffaf1;
  font-size: 14px;
  line-height: 1.55;
  text-decoration: none;
  transition: background 0.2s ease, border-color 0.2s ease, transform 0.2s ease;
}

.ninbai-series_hub-card .ninbai-series_nav-item a:hover {
  background: rgba(242, 216, 163, 0.12);
  border-color: rgba(242, 216, 163, 0.45);
  transform: translateY(-1px);
}

.ninbai-series_hub-card .ninbai-series_num {
  display: inline-flex;
  align-items: center;
  padding: 2px 8px;
  border-radius: 999px;
  background: rgba(184, 135, 36, 0.28);
  color: #f2d8a3;
  font-size: 11px;
  font-weight: 700;
}

.ninbai-series_hub-card .ninbai-series_nav-hub {
  margin: 20px 0 0;
  padding-top: 16px;
  border-top: 1px solid rgba(255, 255, 255, 0.12);
}

.ninbai-series_hub-card > a,
.ninbai-series_hub-card .ninbai-series_nav-hub a,
.ninbai-series_hub-card > a:link,
.ninbai-series_hub-card > a:visited,
.ninbai-series_hub-card .ninbai-series_nav-hub a:link,
.ninbai-series_hub-card .ninbai-series_nav-hub a:visited,
.ninbai-series_hub-card > a:hover,
.ninbai-series_hub-card > a:active,
.ninbai-series_hub-card .ninbai-series_nav-hub a:hover,
.ninbai-series_hub-card .ninbai-series_nav-hub a:active {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  width: 100%;
  max-width: none;
  min-height: 52px;
  min-width: 0;
  padding: 14px 28px;
  margin-top: 20px;
  border-radius: 999px;
  background: linear-gradient(180deg, #f3d98f 0%, #c89b4b 58%, #a8792f 100%);
  color: #0b1f3a !important;
  font-weight: 700;
  font-size: 15px;
  line-height: 1.35;
  text-decoration: none;
  border: 1px solid rgba(255, 240, 190, 0.85);
  box-shadow: 0 6px 18px rgba(0, 0, 0, 0.22);
  box-sizing: border-box;
  align-self: stretch;
  -webkit-tap-highlight-color: transparent;
  touch-action: manipulation;
  transition: background 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease;
}

.ninbai-series_hub-card:not(:has(.ninbai-series_nav-list)) > a {
  margin-top: 20px;
  border-radius: 12px;
}

.ninbai-blog-list_page .ninbai-series_hub-card > a {
  margin-top: 20px;
  border-radius: 12px;
}

.ninbai-series_hub-card > a:hover,
.ninbai-series_hub-card .ninbai-series_nav-hub a:hover {
  background: linear-gradient(180deg, #f7e5a8 0%, #d4ab58 58%, #b88724 100%);
  transform: translateY(-1px);
  box-shadow: 0 8px 22px rgba(0, 0, 0, 0.26);
}

.ninbai-series_hub-card > a::after,
.ninbai-series_hub-card .ninbai-series_nav-hub a::after {
  content: "→";
  font-weight: 700;
  color: #0b1f3a;
}

.ninbai-series_hub-card .ninbai-series_flow {
  margin: 4px 0 0;
}

.ninbai-series_hub-card .ninbai-series_flow span {
  background: rgba(255, 255, 255, 0.1);
  color: #fffaf1;
  border: 1px solid rgba(242, 216, 163, 0.2);
}

.ninbai-series_hub-articles {
  margin: 36px 0 28px;
}

.ninbai-series_hub-articles > h2 {
  margin: 0 0 16px;
  font-size: 20px;
  color: #0c2d44;
}

.ninbai-series_hub-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 12px;
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: series-hub;
}

.ninbai-series_hub-grid-item {
  margin: 0;
}

.ninbai-series_hub-grid-item a {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 8px;
  height: 100%;
  min-height: 96px;
  padding: 16px 18px;
  border-radius: 12px;
  text-decoration: none;
  color: #0c2d44;
  background: linear-gradient(135deg, #f7f2e8 0%, #fffaf1 100%);
  border: 1px solid rgba(184, 135, 36, 0.28);
  transition: border-color 0.2s ease, box-shadow 0.2s ease, transform 0.2s ease;
}

.ninbai-series_hub-grid-item a:hover {
  border-color: rgba(184, 135, 36, 0.55);
  box-shadow: 0 8px 24px rgba(12, 45, 68, 0.08);
  transform: translateY(-1px);
}

.ninbai-series_hub-grid-title {
  font-size: 14px;
  line-height: 1.55;
  font-weight: 600;
}

.ninbai-series_hub-grid-item .ninbai-series_num {
  display: inline-flex;
  align-items: center;
  padding: 2px 8px;
  border-radius: 999px;
  background: rgba(184, 135, 36, 0.15);
  color: #9a701c;
  font-size: 11px;
  font-weight: 700;
}

.ninbai-series_flow {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 16px 0;
}

.ninbai-series_flow span {
  padding: 8px 12px;
  border-radius: 999px;
  background: rgba(12, 45, 68, 0.08);
  font-size: 13px;
  font-weight: 600;
  color: #0c2d44;
}

.ninbai-series_flow span:not(:last-child)::after {
  content: "→";
  margin-left: 8px;
  color: #b88724;
}

.ninbai-table-wrap {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  margin: 12px 0 20px;
}

.ninbai-table-section .ninbai-knowledge_table {
  min-width: 560px;
}

.ninbai-knowledge_practice {
  border-left: 4px solid #b88724;
  padding-left: 16px;
  margin: 24px 0;
}

.ninbai-article_content h3 {
  margin: 18px 0 8px;
  font-size: 16px;
  color: #0c2d44;
}

@media (max-width: 767px) {
  .ninbai-series_nav {
    padding: 16px 14px;
  }

  .ninbai-table-section .ninbai-knowledge_table {
    font-size: 13px;
  }

  .ninbai-table-section th,
  .ninbai-table-section td {
    padding: 8px 6px;
  }

  .ninbai-series_nav-title {
    font-size: 16px;
  }

  .ninbai-series_flow {
    flex-direction: column;
  }

  .ninbai-series_flow span:not(:last-child)::after {
    content: "";
    margin: 0;
  }

  .ninbai-series_hub-card .ninbai-series_nav-list,
  .ninbai-series_hub-grid {
    grid-template-columns: 1fr;
  }

  .ninbai-series_hub-card > a,
  .ninbai-series_hub-card .ninbai-series_nav-hub a {
    min-height: 56px;
    padding: 16px 20px;
    font-size: 16px;
  }
}

/* --- シリーズ詳細ページ（/column/*-series/）レイアウト --- */
.ninbai-knowledge_page > .content:has(> .ninbai-series_hub-card) {
  width: 100%;
  max-width: 920px;
  margin-left: auto !important;
  margin-right: auto !important;
  padding: 0 clamp(16px, 4vw, 28px);
  box-sizing: border-box;
}

.ninbai-knowledge_page:has(> .content > .ninbai-series_hub-card) {
  padding-top: clamp(108px, 14vw, 128px);
  padding-bottom: clamp(48px, 8vw, 72px);
  background: linear-gradient(180deg, #f8f2e8 0%, #fff 42%, #fff 100%);
}

.ninbai-knowledge_page > .content:has(> .ninbai-series_hub-card) > .ninbai-series_hub-card {
  margin-top: 0;
  width: 100%;
}

.ninbai-knowledge_page > .content:has(> .ninbai-series_hub-card) .ninbai-series_hub-card:has(.ninbai-series_flow) {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 12px;
}

@media (min-width: 768px) {
  .ninbai-knowledge_page > .content:has(> .ninbai-series_hub-card) .ninbai-series_hub-card:has(.ninbai-series_flow) {
    grid-template-columns: minmax(0, 1.15fr) minmax(220px, 0.85fr);
    column-gap: 28px;
    row-gap: 10px;
    align-items: start;
  }

  .ninbai-knowledge_page > .content:has(> .ninbai-series_hub-card) .ninbai-series_hub-card:has(.ninbai-series_flow) .ninbai-series_hub-kicker,
  .ninbai-knowledge_page > .content:has(> .ninbai-series_hub-card) .ninbai-series_hub-card:has(.ninbai-series_flow) h1,
  .ninbai-knowledge_page > .content:has(> .ninbai-series_hub-card) .ninbai-series_hub-card:has(.ninbai-series_flow) .ninbai-series_hub-lead {
    grid-column: 1 / -1;
  }

  .ninbai-knowledge_page > .content:has(> .ninbai-series_hub-card) .ninbai-series_hub-card:has(.ninbai-series_flow) > p:not(.ninbai-series_hub-lead):not(.ninbai-series_hub-kicker) {
    grid-column: 1;
    margin-bottom: 0;
  }

  .ninbai-knowledge_page > .content:has(> .ninbai-series_hub-card) .ninbai-series_hub-card:has(.ninbai-series_flow) .ninbai-series_flow {
    grid-column: 2;
    grid-row: 4 / span 2;
    margin: 0;
    flex-direction: column;
    align-items: stretch;
  }

  .ninbai-knowledge_page > .content:has(> .ninbai-series_hub-card) .ninbai-series_hub-card:has(.ninbai-series_flow) .ninbai-series_flow span {
    width: 100%;
    box-sizing: border-box;
    text-align: center;
  }

  .ninbai-knowledge_page > .content:has(> .ninbai-series_hub-card) .ninbai-series_hub-card:has(.ninbai-series_flow) .ninbai-series_flow span:not(:last-child)::after {
    content: "";
    margin: 0;
  }
}

.ninbai-knowledge_page > .content:has(> .ninbai-series_hub-card) .ninbai-series_hub-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  justify-content: center;
}

.ninbai-knowledge_page > .content:has(> .ninbai-series_hub-card) .ninbai-series_hub-grid-item {
  flex: 1 1 280px;
  max-width: 100%;
  min-width: min(100%, 280px);
}

@media (min-width: 640px) {
  .ninbai-knowledge_page > .content:has(> .ninbai-series_hub-card) .ninbai-series_hub-grid-item {
    max-width: calc(50% - 7px);
  }
}

@media (min-width: 900px) {
  .ninbai-knowledge_page > .content:has(> .ninbai-series_hub-card) .ninbai-series_hub-grid-item {
    max-width: calc(33.333% - 10px);
  }
}

.ninbai-knowledge_page > .content:has(> .ninbai-series_hub-card) .ninbai-series_hub-articles,
.ninbai-knowledge_page > .content:has(> .ninbai-series_hub-card) .ninbai-series_lps,
.ninbai-knowledge_page > .content:has(> .ninbai-series_hub-card) .ninbai-guidebook_inline,
.ninbai-knowledge_page > .content:has(> .ninbai-series_hub-card) .comLink {
  width: 100%;
  max-width: none;
}

.ninbai-knowledge_page > .content:has(> .ninbai-series_hub-card) .ninbai-series_lps {
  margin: 8px 0 24px;
  padding: 20px 22px;
  border-radius: 14px;
  background: #fff;
  border: 1px solid rgba(11, 31, 58, 0.08);
}

.ninbai-knowledge_page > .content:has(> .ninbai-series_hub-card) .ninbai-series_lps h2 {
  margin: 0 0 12px;
  font-size: 18px;
  color: #0b1f3a;
}

.ninbai-knowledge_page > .content:has(> .ninbai-series_hub-card) .ninbai-series_lps a {
  color: #0b1f3a;
}

.ninbai-knowledge_page > .content:has(> .ninbai-series_hub-card) .ninbai-guidebook_inline {
  width: 100%;
  box-sizing: border-box;
}

.ninbai-knowledge_page > .content:has(> .ninbai-series_hub-card) .ninbai-guidebook_inline .ninbai-guidebook_submit {
  width: 100%;
  max-width: 360px;
  display: flex !important;
  align-items: center;
  justify-content: center;
  min-height: 52px;
}

.ninbai-knowledge_page > .content:has(> .ninbai-series_hub-card) .comLink {
  text-align: center;
  margin: 24px auto 0;
  padding: 0;
}

.ninbai-knowledge_page > .content:has(> .ninbai-series_hub-card) .comLink a,
.ninbai-knowledge_page > .content:has(> .ninbai-series_hub-card) .comLink a:link,
.ninbai-knowledge_page > .content:has(> .ninbai-series_hub-card) .comLink a:visited,
.ninbai-knowledge_page > .content:has(> .ninbai-series_hub-card) .comLink a:hover,
.ninbai-knowledge_page > .content:has(> .ninbai-series_hub-card) .comLink a:active {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  max-width: 360px;
  min-height: 52px;
  margin: 0 auto;
  padding: 14px 32px;
  box-sizing: border-box;
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-decoration: none;
  text-align: center;
  color: #0b1f3a !important;
  background: linear-gradient(180deg, #fffaf2, #f8f2e8) !important;
  border: 1px solid #c89b4b !important;
  border-left: 4px solid #c89b4b !important;
  border-radius: 999px;
  box-shadow: 0 6px 18px rgba(11, 31, 58, 0.1);
  -webkit-tap-highlight-color: transparent;
  touch-action: manipulation;
}

.ninbai-knowledge_page > .content:has(> .ninbai-series_hub-card) .comLink a:hover {
  background: linear-gradient(180deg, #fff, #fffaf2) !important;
  transform: translateY(-1px);
  opacity: 1;
}

@media (max-width: 896px) {
  .ninbai-knowledge_page:has(> .content > .ninbai-series_hub-card) {
    padding-top: calc(88px + 16px);
  }

  html body #container.ninbai-page .ninbai-knowledge_page > .content:has(> .ninbai-series_hub-card) {
    width: calc(100% - 32px) !important;
    max-width: none !important;
    margin-left: auto !important;
    margin-right: auto !important;
  }

  .ninbai-knowledge_page > .content:has(> .ninbai-series_hub-card) .ninbai-series_hub-grid-item {
    max-width: 100%;
  }

  .ninbai-knowledge_page > .content:has(> .ninbai-series_hub-card) .comLink a {
    max-width: none;
    width: 100%;
    min-height: 56px;
    padding: 16px 24px;
    font-size: 16px;
  }
}