/* human用 */
:root {
  --font-serif: "Crimson Text", "Noto Serif JP", serif;
}

body {
  font-family: var(--font-serif);
  font-weight: 400;
  line-height: 1.8;
}

section {
  overflow: visible;
}

.breadcrumbs-list {
  display: flex;
  flex-wrap: wrap;
  padding: 0 4rem;
  line-height: 1.5;
}

.breadcrumbs-list-item {
  font-size: 1.7rem;
  display: flex;
  align-items: center;
  padding: .5rem 0;
}

.breadcrumbs-list-item a {
  text-decoration: underline;
}

.breadcrumbs-list-item::after {
  display: inline-block;
  content: ">";
  padding: 0 1rem 0 1rem;
  margin-bottom: 0.25rem;
}

.column-wrapper {
  /*background: #d9ffd4 url(../img/human_body_bg.jpg) repeat-y center top /contain;*/
}

.column-ctr {
  /*background-color: #fff;
  box-shadow: 0 5px 15px 0 rgba(0, 0, 0, 0.1);*/
  max-width: 1200px;
  margin: 0 auto;
  padding: 2rem;
}

.human .column-title {
  font-size: 3.7rem;
  margin: 3rem auto 0;
}

.human .title-catch {
  display: block;
  line-height: 1.25;
  font-size: 2.7rem;
}



/* ナビ全体 */

.article-anchor {
  position: sticky;
  top: 0;
  /* header高さに合わせて調整 */
  z-index: 1;
  background: #f7f9f8;
  border-bottom: 1px solid #e6ecea;
  transition: background 0.3s ease, box-shadow 0.3s ease;
}

/* 固定状態（JSで is-sticky を付与） */
.article-anchor.is-sticky {
  background: #ffffff;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.04);
}

/* 中央レイアウト（1200px対応） */

.anchor-inner {
  max-width: 1200px;
  margin: 6rem auto 0;
  display: flex;
  justify-content: center;
  gap: 2rem;
  padding: 1.2rem 0;
}

.article-anchor a {
  position: relative;
  display: inline-block;
  text-decoration: none;
  font-size: 1.8rem;
  letter-spacing: 0.05em;
  font-weight: 700;
  color: #444;
  padding: 1rem 2rem 1rem 3.8rem;
  border-radius: 20px;
  line-height: 1.4;
  transition: background 0.25s ease, color 0.25s ease, transform 0.2s ease;
  width: 10%;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* 左アクセントバー */

.article-anchor a::before {
  content: "";
  position: absolute;
  left: 25px;
  top: 8px;
  bottom: 8px;
  /* 高さを固定せず追従 */
  width: 2px;
  background: #cfd8d6;
  border-radius: 2px;
  transition: background 0.25s ease,
    transform 0.25s ease,
    opacity 0.25s ease;
}

.article-anchor a:hover {
  background: #e6f0ee;
  color: #2f6f63;
}

.article-anchor a:hover::before {
  background: #3e8a7d;
  transform: scaleY(1.05);
}

/* Active（現在地）*/

.article-anchor a.active {
  background: #84c17d;
  color: #fff;
  font-weight: bold;
}

.article-anchor a.active::before {
  background: #fff;
  transform: scaleY(1);
}



/* はじめに */
.column-flex {
  display: flex;
  margin: 8.5rem auto;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
}

.column-left {
  flex: 1;
}

.column-catch {
  display: inline-flex;
  align-items: center;
  gap: .8rem;
  font-size: 2.3rem;
  font-weight: 700;
  margin-bottom: 1.5rem;
}

.column-catch::before {
  content: "";
  width: 38px;
  height: 42px;
  background: url("../img/icon_img.svg") no-repeat center / contain;
}

.column-about {
  display: block;
  font-size: 2rem;
  padding-left: 1rem;
  line-height: 1.5;
}

.column-right figure {
  margin: 0;
}

.column-item-img {
  max-width: 100%;
  width: 480px;
  box-shadow: 0 5px 10px 0 rgba(0, 0, 0, 0.4);
  display: block;
  margin: 1rem;
  height: auto;
}

.column-ctn .three-pillars {}

.column-sub-title {
  font-size: 2.6rem;
  background: linear-gradient(135deg, #4aa140 0%, #7ed56f 100%);
  color: #fff;
  font-weight: bold;
  padding: 0.5rem 1.8rem;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
  box-sizing: border-box;
  letter-spacing: .1em;
  width: 100%;
}

.column-text {
  font-size: 1.8rem;
  margin-top: 2rem;
}

/* タブ */
.body-tabs {
  max-width: 800px;
  margin: 60px auto;
  text-align: center;
}

.tab-nav {
  display: flex;
  justify-content: center;
  gap: 6rem;
  border-bottom: 1px solid #ddd;
  margin-bottom: 3rem;
}

.tab {
  background: none;
  border: none;
  font-size: 2.1rem;
  padding: 1rem 0;
  cursor: pointer;
  position: relative;
  color: #444;
  font-weight: 700;
}

.tab::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -1px;
  width: 0;
  height: 2px;
  background: #2f6f63;
  transition: width 0.3s ease;
}

.tab.active {
  color: #2f6f63;
}

.tab.active::after {
  width: 100%;
}

.tab-content {
  display: none;
  animation: fade 0.35s ease;
}

.tab-content.active {
  display: block;
}

.tab-content img {
  width: 100%;
  max-width: 650px;
  height: auto;
  margin-bottom: 15px;
}

.tab-content p {
  font-size: 2rem;
  color: #333;
  line-height: 1.7;
}

@keyframes fade {
  from {
    opacity: 0;
    transform: translateY(5px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* 骨と筋肉 */
.bones-muscles {
  margin-top: 5rem;
}


.breadcrumbs-list-item:last-of-type::after {
  content: unset;
}

.health-ctr {
  margin-top: 5.5rem;
}

.health-ctr-ttl {
  font-size: 2.8rem;
  font-weight: bold;
}

.health-ctr-ttl-sub {
  font-size: 2.2rem;
}

.health-ctr-txt {
  font-size: 1.8rem;
}

.column-contents {
  margin-top: 6rem;
}



.column-table {
  width: 100%;
  border-collapse: collapse;
  margin: 3rem auto 1rem;
}

.column-table caption {
  text-align: left;
  font-size: 1.8rem;
  font-weight: bold;
}

.column-table th,
.column-table td {
  padding: 0.8rem;
  border: 1px solid rgb(54, 54, 54);
  text-align: left;
  font-size: 1.5rem;
  width: 33.3%;
}

.column-table th {
  background-color: #ddd;
  font-size: 1.7rem;
  font-weight: bold;
  text-align: center;
}

.scroll-txt {
  text-align: center;
}

.scroll-txt.sp-only {
  font-size: 1.6rem;
  display: none;
}

.column-text-custom {
  border-left: 4px solid #ba7552;
  padding-left: 1rem;
  font-size: 1.9rem;
  margin: 1rem 0;
  color: #5d5d5d;
  font-weight: 900;
}


/* コラムseries */

.column-box {
  background-color: #f7f3f3;
}

.column-series {
  margin: 5rem auto;
  /*width: 900px;*/
  width: 90%;
  padding: 2rem 0;
}

.column-series p {
  color: #525252;
  font-size: 1.6rem;
  font-weight: bold;
  margin-bottom: 1.5rem;
}

.series-list {
  display: flex;
  padding: 0 1rem;
  flex-wrap: wrap;
  gap: 1rem;
  width: 100%;
}

.series-item {
  /*width: 300px;*/
  width: 24%;
}

.series-item span {
  display: block;
  font-size: 1.3rem;
  letter-spacing: -0.04em;
  margin-top: 1rem;
}

.series-item img {}

.category th,
.category td {
  width: auto;
}

.pc-img-only {
  display: block;
}

.sp-img-only {
  display: none;
}

:root {
  --bg: #f7f9fb;
  --card: #ffffff;
  --muted: #6b7280;
  --accent: #0b7285;
  --table-border: #e6eef2;
}

.subtitle {
  color: var(--muted);
  font-size: 13px;
}

.card {
  background: #fff;
  border-radius: 10px;
  padding: 1.5rem;
  box-shadow: 0 2px 8px rgba(15, 23, 42, 0.04);
  border: 1px solid #e6eef2;
  margin: 1.5rem auto;
}

.groupA {
  border-left: 2px solid #5caecd;
}

.groupB {
  border-left: 2px solid #edbc3a;
}

.muted {
  color: #888;
}

details {
  margin-top: 8px;
}

summary {
  cursor: pointer;
  font-weight: 600;
}

.footnote {
  font-size: 13px;
  color: var(--muted);
}

.pill {
  display: inline-block;
  padding: 6px 10px;
  border-radius: 999px;
  background: #eef9f9;
  color: #0b6b6b;
  font-size: 13px;
  margin-bottom: 8px;
}

.row-icons {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

/* card */
.card-ttl {
  font-size: 1.8rem;
  font-weight: bold;
}

.card-txt {
  font-size: 1.5rem;
}

.card-decoration {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.2rem;
  margin-top: 1.2rem;
}

strong.card-txt {
  font-size: 1.6rem;
  font-weight: 900;
}

.final .column-text:nth-child(n + 2) {
  margin-bottom: 1.5rem;
}

.final .column-text:last-of-type {
  margin-bottom: 0;
}

@media (max-width: 760px) {

  th,
  td {
    padding: 10px;
    font-size: 13px;
  }
}

/* レスポンシブ対応 */
@media screen and (max-width: 1024px) {
  .breadcrumbs-list-item {
    font-size: 1.5rem;
  }

  .human .column-title {
    font-size: 2.7rem;
  }

  .anchor-inner {
    gap: 1rem;
  }

  .article-anchor a {
    font-size: 1.5rem;
    padding: 1rem 1rem 1rem 2.8rem;
    width: fit-content;
  }

  .article-anchor a::before {
    left: 15px;
  }

  .column-flex {
    margin: 4.5rem auto;
    gap: 2rem;
    justify-content: center;
  }

  .column-catch {
    font-size: 2rem;
    padding-left: 1rem;
  }

  .column-about {
    font-size: 1.7rem;
  }

  .column-sub-title {
    font-size: 2.2rem;
  }

  .column-text {
    font-size: 1.6rem;
  }

  .body-tabs {
    margin: 4rem auto;
  }

  .tab-nav {
    gap: 5rem;
  }

  .tab {
    font-size: 1.7rem;
  }

  .tab-content img {
    max-width: 400px;
    margin-bottom: 1rem;
  }

  .tab-content p {
    font-size: 1.7rem;
  }


  .column-contents {
    margin: 3rem auto;
  }



  .health-ctr-ttl {
    font-size: 2rem;
    font-weight: bold;
  }

  .health-ctr-ttl-sub {
    font-size: 1.8rem;
  }

  .health-ctr-txt {
    font-size: 1.8rem;
  }

  .series-list {
    flex-wrap: wrap;
  }

  .series-item {
    margin: 0 0.5rem;
    width: 30%;
  }
}

@media (max-width: 768px) {

  .column-left {
    flex: auto;
  }

  .column-item-img {
    width: 100%;
    margin: auto;
  }

}

@media screen and (max-width: 600px) {
  .main {
    margin: 10rem auto 0;
  }

  .breadcrumbs-list {
    padding: 0 1rem;
  }

  .breadcrumbs-list-item {
    font-size: 1.5rem;
  }

  .column-ctr {
    max-width: 100%;
    padding: 1rem;
  }

  .human .column-title {
    font-size: 2.2rem;
    margin: 1rem auto 0;
  }

  .human .title-catch {
    font-size: 1.8rem;
  }

  .anchor-inner {
    max-width: 100%;
    margin: 3rem auto 0;
    justify-content: flex-start;
    padding: 1.3rem .6rem;
    gap: 0;
  }

  .article-anchor a {
    font-size: 1.4rem;
    padding: .8rem .8rem .8rem 1.2rem;
    line-height: 1.5;
    border-radius: 0;
    letter-spacing: -.015em;
  }

  .article-anchor a::before {
    left: .4rem;
    top: 6px;
    bottom: 6px;
  }

  .column-list {
    text-indent: -1em;
    margin: 1rem;
  }


  .column-title {
    margin: 2rem auto 0;
  }

  .column-table {
    display: block;
    overflow-x: auto;
    white-space: nowrap;
  }

  .scroll-txt.sp-only {
    display: block;
    margin-bottom: 2rem;
  }

  .health-column-img {
    margin-bottom: 4rem;
  }

  .series-item {
    width: 100%;
  }

  .pc-img-only {
    display: none;
  }

  .sp-img-only {
    display: block;
  }

  .card-decoration {
    grid-template-columns: auto;
  }
}