/* =========================================================
   연구회소개 — /about/intro · /about/officers · /about/history · /about/bylaws
   토큰은 client.css 에 있다. 여기서는 정의하지 않는다. (docs/about.md)
   ========================================================= */

/* ---------- 연구회 소개 ---------- */
.intro-lead {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 32px;
  padding-bottom: 36px;
  border-bottom: 1px solid var(--color-line);
}
.intro-lead__text { max-width: 720px; }
.intro-lead__title { margin-top: 10px; font-size: var(--fs-h2); font-weight: 700; line-height: 1.4; color: var(--color-brand); }
.intro-lead__body { margin-top: 16px; font-size: 17px; line-height: 1.8; color: var(--color-text-sub); }
.intro-lead__since {
  flex: none;
  font-size: 88px;
  font-weight: 700;
  line-height: 1;
  letter-spacing: -0.03em;
  color: var(--color-brand-soft);
}
.intro-lead__since span {
  display: block;
  margin-bottom: 6px;
  font-size: var(--fs-small);
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-accent-dark);
}

.intro-mission {
  position: relative;
  margin: 40px 0 0;
  padding: 28px 32px 28px 36px;
  border: 1px solid var(--color-line);
  border-radius: var(--radius);
  background: var(--color-bg-soft);
}
.intro-mission::before {
  content: "";
  position: absolute;
  top: -1px;
  bottom: -1px;
  left: -1px;
  width: 4px;
  border-radius: var(--radius) 0 0 var(--radius);
  background: var(--color-accent);
}
.intro-mission__label { font-size: var(--fs-xs); font-weight: 600; letter-spacing: 0.08em; color: var(--color-accent-dark); }
.intro-mission__text { margin-top: 8px; font-size: 19px; font-weight: 600; line-height: 1.6; color: var(--color-brand); }

.intro-block { margin-top: 56px; }

.intro-aims { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.intro-aims__item {
  padding: 28px 26px 30px;
  border: 1px solid var(--color-line);
  border-top: 2px solid var(--color-accent);
  border-radius: var(--radius);
  background: var(--color-bg);
  transition: border-color var(--hover-dur) var(--ease), box-shadow var(--hover-dur) var(--ease), transform var(--hover-dur) var(--ease);
}
/* 호버 — 떠오르고, 옅던 번호가 짙은 보라로 차오른다 */
.intro-aims__item:hover { border-color: var(--color-accent-line); border-top-color: var(--color-accent); box-shadow: var(--shadow-hover); transform: translateY(var(--hover-lift)); }
.intro-aims__no {
  display: inline-block;
  font-size: 28px;
  font-weight: 700;
  line-height: 1;
  color: var(--color-accent-light);
  transform-origin: left bottom;
  transition: color var(--hover-dur) var(--ease), transform var(--hover-dur) var(--ease);
}
.intro-aims__item:hover .intro-aims__no { color: var(--color-accent); transform: scale(1.12); }
.intro-aims__title { margin-top: 18px; font-size: var(--fs-h3); font-weight: 700; color: var(--color-brand); }
.intro-aims__text { margin-top: 8px; font-size: var(--fs-small); line-height: 1.6; color: var(--color-text-sub); }

.intro-facts {
  display: grid;
  grid-template-columns: 1fr 2fr;
  border-top: 2px solid var(--color-brand);
  border-bottom: 1px solid var(--color-line);
}
.intro-facts__item { padding: 22px 24px; }
.intro-facts__item + .intro-facts__item { border-left: 1px solid var(--color-line); }
.intro-facts dt { font-size: var(--fs-xs); font-weight: 600; color: var(--color-text-muted); }
.intro-facts dd { margin-top: 8px; color: var(--color-text); }
.intro-facts dd strong { font-size: 24px; font-weight: 700; color: var(--color-brand); }
.intro-facts dd a { color: var(--color-brand); text-decoration: underline; text-underline-offset: 3px; }
.intro-facts__item--wide dd { display: flex; flex-direction: column; gap: 2px; font-size: var(--fs-small); color: var(--color-text-sub); }

.intro-links { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; margin-top: 56px; }
.intro-links__item {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 24px 64px 24px 24px;
  border: 1px solid var(--color-line);
  border-radius: var(--radius);
  transition: border-color var(--hover-dur) var(--ease), background-color var(--hover-dur) var(--ease),
    box-shadow var(--hover-dur) var(--ease), transform var(--hover-dur) var(--ease);
}
.intro-links__item:hover,
.intro-links__item:focus-visible { border-color: var(--color-brand); background: var(--color-bg-soft); box-shadow: var(--shadow-hover); transform: translateY(var(--hover-lift)); }
.intro-links__label { font-size: var(--fs-h3); font-weight: 700; color: var(--color-brand); }
.intro-links__text { font-size: var(--fs-small); color: var(--color-text-sub); }
.intro-links__arrow {
  position: absolute;
  top: 50%;
  right: 24px;
  width: 32px;
  height: 32px;
  margin-top: -16px;
  border: 1px solid var(--color-line-strong);
  border-radius: 50%;
  transition: border-color 0.2s var(--ease), background-color 0.2s var(--ease), transform var(--hover-dur) var(--ease);
}
.intro-links__arrow::before {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  width: 7px;
  height: 7px;
  margin: -4px 0 0 -5px;
  border-top: 1.5px solid var(--color-brand);
  border-right: 1.5px solid var(--color-brand);
  transform: rotate(45deg);
}
.intro-links__item:hover .intro-links__arrow,
.intro-links__item:focus-visible .intro-links__arrow { border-color: var(--color-accent); background: var(--color-accent); transform: translateX(4px); }
.intro-links__item:hover .intro-links__arrow::before,
.intro-links__item:focus-visible .intro-links__arrow::before { border-color: var(--color-on-dark); }

/* ---------- 네 회원 그룹 (Mission & Vision) ---------- */
.intro-aims--four { grid-template-columns: repeat(4, 1fr); }
.member-groups { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.member-groups__item {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 24px;
  border: 1px solid var(--color-line);
  border-top: 3px solid var(--color-accent);
  border-radius: var(--radius);
  background: var(--color-bg);
  transition: border-color var(--hover-dur) var(--ease), background-color var(--hover-dur) var(--ease),
    box-shadow var(--hover-dur) var(--ease), transform var(--hover-dur) var(--ease);
}
/* 호버 — 떠오르며 옅은 보라 바탕이 깔리고 그룹 코드가 보라로 */
.member-groups__item:hover { border-color: var(--color-accent-line); border-top-color: var(--color-accent); background: var(--color-accent-soft); box-shadow: var(--shadow-hover); transform: translateY(var(--hover-lift)); }
.member-groups__code { font-size: 24px; font-weight: 800; letter-spacing: 0.04em; color: var(--color-brand); transition: color var(--hover-dur) var(--ease); }
.member-groups__item:hover .member-groups__code { color: var(--color-accent-dark); }
.member-groups__name { font-size: var(--fs-small); line-height: 1.5; color: var(--color-text); }
.member-groups__country { font-size: var(--fs-xs); font-weight: 600; color: var(--color-text-muted); }

/* ---------- Welcome Message (/about/welcome) ----------
   왼쪽 사진은 스크롤해도 붙어 있고(sticky), 오른쪽이 인사말이다. 사진 비율은 2:3(원본 799×1200)이다. */
.welcome { display: grid; grid-template-columns: 340px 1fr; gap: 64px; align-items: start; }
/* 사진을 지운 인사말(admin 하위 화면 관리) — 글 한 단만. 좁은 화면의 열 정의보다 앞서도록 두 클래스로 잡는다 */
.welcome.welcome--text { grid-template-columns: minmax(0, 1fr); max-width: 880px; }
/* figure 의 브라우저 기본 여백(좌우 40px)을 지운다 — client.css 의 여백 초기화에 figure 가 없다 */
.welcome__figure { margin: 0; position: sticky; top: calc(var(--header-h) + 24px); }
.welcome__photo {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 2 / 3;
  object-fit: cover;
  object-position: center top;
  border-radius: var(--radius);
  background: var(--color-brand-soft);
}
.welcome__caption { display: flex; flex-direction: column; gap: 2px; margin-top: 14px; }
.welcome__caption strong { font-size: var(--fs-h3); font-weight: 700; color: var(--color-brand); }
.welcome__caption span { font-size: var(--fs-small); color: var(--color-text-muted); }
.welcome__title { margin-top: 10px; font-size: var(--fs-h2); font-weight: 700; line-height: 1.4; color: var(--color-brand); }
.welcome__lead { margin-top: 24px; font-size: 19px; font-weight: 600; line-height: 1.7; color: var(--color-text); }
.welcome__body { margin-top: 18px; font-size: 17px; line-height: 1.85; color: var(--color-text-sub); }
.welcome__sign {
  display: flex;
  flex-direction: column;
  gap: 4px;
  margin-top: 40px;
  padding-top: 24px;
  border-top: 1px solid var(--color-line);
}
.welcome__sign-name { font-size: 20px; font-weight: 700; color: var(--color-text); }
.welcome__sign-role { font-size: var(--fs-xs); font-weight: 600; letter-spacing: 0.08em; text-transform: uppercase; color: var(--color-accent-dark); }

/* ---------- 사람 카드 (Leadership · 조직도 · 위원회, templates/_person.php) ---------- */
.people { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.people--lead { display: block; margin-bottom: 32px; }
.people--center { display: flex; flex-wrap: wrap; justify-content: center; }
.people--center .person { width: calc((100% - 60px) / 4); }
.people--stack { display: flex; flex-direction: column; gap: 12px; }
/* 호버 — 카드가 떠오르며 그림자를 깔고, 위쪽에 보라 선이 왼쪽에서 그어진다.
   사진은 보라 고리가 번지며 안에서 조금 당겨지고, 이름이 청록으로 바뀐다 */
.person {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 14px;
  overflow: hidden;
  padding: 28px 20px 24px;
  border: 1px solid var(--color-line);
  border-radius: var(--radius);
  background: var(--color-bg);
  text-align: center;
  transition: border-color var(--hover-dur) var(--ease), box-shadow var(--hover-dur) var(--ease), transform var(--hover-dur) var(--ease);
}
.person::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--color-accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--hover-dur) var(--ease);
}
.person:hover { border-color: var(--color-brand-line); box-shadow: var(--shadow-hover); transform: translateY(var(--hover-lift)); }
.person:hover::before { transform: scaleX(1); }
.person__photo {
  display: grid;
  place-items: center;
  flex: none;
  width: 120px;
  height: 120px;
  overflow: hidden;
  border-radius: 50%;
  background: var(--color-brand-soft);
  box-shadow: 0 0 0 0 var(--color-accent-soft);
  transition: box-shadow var(--hover-dur) var(--ease);
}
.person:hover .person__photo { box-shadow: 0 0 0 6px var(--color-accent-soft); }
.person__photo img { width: 100%; height: 100%; object-fit: cover; object-position: center top; transition: transform 0.5s var(--ease); }
.person:hover .person__photo img { transform: scale(1.06); }
.person__initial { font-size: 40px; font-weight: 700; color: var(--color-brand); }
.person__body { display: flex; flex-direction: column; gap: 4px; }
.person__role { font-size: var(--fs-xs); font-weight: 700; letter-spacing: 0.06em; text-transform: uppercase; color: var(--color-accent-dark); }
.person__name { font-size: var(--fs-h3); font-weight: 700; color: var(--color-text); transition: color var(--hover-dur) var(--ease); }
.person:hover .person__name { color: var(--color-brand); }
.person__aff { font-size: var(--fs-small); color: var(--color-text-sub); }
.person__group { font-size: var(--fs-xs); color: var(--color-text-muted); }

/* 회장 자리 — 가로로 크게, 짙은 바탕 */
.person--lg {
  flex-direction: row;
  gap: 36px;
  padding: 36px 44px;
  border: 0;
  background: var(--color-brand);
  text-align: left;
}
.person--lg .person__photo { width: 168px; height: 168px; background: var(--color-brand-dark); }
.person--lg .person__initial { font-size: 56px; color: var(--color-accent-light); }
.person--lg .person__role { font-size: var(--fs-small); color: var(--color-accent-light); }
.person--lg .person__name { font-size: 32px; color: var(--color-on-dark); }
.person--lg .person__aff,
.person--lg .person__group { color: var(--color-on-dark-sub); }
/* 짙은 바탕이라 호버 색을 밝은 쪽으로 바꾼다 — 윗선은 연보라, 고리는 흰 빛, 이름은 흰색 그대로 */
.person--lg::before { background: var(--color-accent-light); }
.person--lg:hover { box-shadow: var(--shadow-float); }
.person--lg:hover .person__photo { box-shadow: 0 0 0 8px var(--color-on-dark-line); }
.person--lg:hover .person__name { color: var(--color-on-dark); }

/* 이사회 그룹 칸 안 — 사진 작게, 가로로 */
.person--sm { flex-direction: row; gap: 14px; padding: 14px 16px; text-align: left; }
.person--sm .person__photo { width: 64px; height: 64px; }
.person--sm .person__initial { font-size: 22px; }
.person--sm .person__name { font-size: var(--fs-body); }
.person--sm .person__group { display: none; }
/* 좁은 칸 안이라 덜 떠오르고 고리도 가늘다 */
.person--sm:hover { transform: translateY(-2px); }
.person--sm:hover .person__photo { box-shadow: 0 0 0 4px var(--color-accent-soft); }

/* ---------- 조직도 ---------- */
.org__level + .org__level { position: relative; margin-top: 64px; }
/* 단계 사이를 잇는 세로선 — 위에서 아래로 한 줄기 */
.org__level + .org__level::before {
  content: "";
  position: absolute;
  top: -48px;
  left: 50%;
  width: 1px;
  height: 32px;
  background: var(--color-line-strong);
}
.org__title { margin-bottom: 24px; font-size: 22px; font-weight: 700; text-align: center; color: var(--color-brand); }
.org__groups { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.org__group { padding: 18px; border-radius: var(--radius); background: var(--color-bg-soft); }
.org__group-title { margin-bottom: 12px; font-size: var(--fs-body); font-weight: 800; letter-spacing: 0.04em; color: var(--color-brand); }
.org__group-title span { margin-left: 4px; font-size: var(--fs-xs); font-weight: 600; letter-spacing: 0; color: var(--color-text-muted); }
.org__group .person { background: var(--color-bg); }
.org__committees { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }

/* 위원회 명단 표 — 조직도와 위원회 화면이 함께 쓴다 */
.committee-card {
  padding: 24px 28px;
  border: 1px solid var(--color-line);
  border-top: 3px solid var(--color-brand);
  border-radius: var(--radius);
  background: var(--color-bg);
  transition: border-color var(--hover-dur) var(--ease), box-shadow var(--hover-dur) var(--ease), transform var(--hover-dur) var(--ease);
}
/* 호버 — 떠오르며 윗선이 보라로 바뀐다 */
.committee-card:hover { border-color: var(--color-brand-line); border-top-color: var(--color-accent); box-shadow: var(--shadow-hover); transform: translateY(var(--hover-lift)); }
.committee-card__title { margin-bottom: 12px; font-size: var(--fs-h3); font-weight: 700; color: var(--color-brand); }
.committee-card__title a { background: linear-gradient(currentColor, currentColor) 0 100% / 0 1px no-repeat; transition: color 0.2s var(--ease), background-size var(--hover-dur) var(--ease); }
.committee-card__title a:hover { color: var(--color-accent-dark); background-size: 100% 1px; }
.committee-card__list > div { display: grid; grid-template-columns: 64px 1fr; gap: 12px; padding: 10px 0; border-top: 1px solid var(--color-line); }
.committee-card__list dt { font-size: var(--fs-small); font-weight: 800; color: var(--color-text); }
.committee-card__list dd { font-size: var(--fs-small); line-height: 1.7; color: var(--color-text-sub); }

/* ---------- 회칙 ---------- */
.bylaws { display: grid; grid-template-columns: 220px 1fr; gap: 56px; align-items: start; }
.bylaws__toc {
  position: sticky;
  top: calc(var(--header-h) + 24px);
  padding: 20px 0;
  border-top: 2px solid var(--color-brand);
  border-bottom: 1px solid var(--color-line);
}
.bylaws__toc-title { padding: 0 4px 10px; font-size: var(--fs-xs); font-weight: 600; letter-spacing: 0.08em; color: var(--color-text-muted); }
.bylaws__toc a {
  display: block;
  padding: 8px 4px;
  font-size: var(--fs-small);
  color: var(--color-text-sub);
  transition: color 0.2s var(--ease), transform 0.2s var(--ease);
}
/* 호버한 차례는 한 걸음 들어온다 */
.bylaws__toc a:hover { color: var(--color-brand); transform: translateX(4px); }

.bylaws__draft {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 40px;
  padding: 16px 20px;
  border: 1px solid var(--color-accent-light);
  border-radius: var(--radius);
  font-size: var(--fs-small);
  color: var(--color-text-sub);
}
.bylaws__draft strong { color: var(--color-accent-dark); }
.bylaws__note { margin-top: 12px; font-size: var(--fs-small); font-style: italic; color: var(--color-text-muted); }
.bylaws__updated { margin-top: 32px; font-size: var(--fs-small); color: var(--color-text-muted); }

.bylaws__chapter { scroll-margin-top: calc(var(--header-h) + 24px); }
.bylaws__chapter + .bylaws__chapter { margin-top: 48px; }
.bylaws__chapter-title {
  padding-bottom: 12px;
  border-bottom: 1px solid var(--color-brand);
  font-size: 22px;
  font-weight: 700;
  color: var(--color-brand);
}
.bylaws__article { padding: 20px 0; border-bottom: 1px solid var(--color-line); }
.bylaws__article-title { font-size: var(--fs-body); font-weight: 700; color: var(--color-text); }
.bylaws__article-title span { font-weight: 400; color: var(--color-text-sub); }
.bylaws__clause,
.bylaws__clauses { margin-top: 8px; line-height: 1.8; color: var(--color-text-sub); }
.bylaws__clauses { padding-left: 0; list-style: none; }
.bylaws__clauses li + li { margin-top: 4px; }
.bylaws__clauses li.is-item { margin-left: 0.4em; list-style: none; }
/* ---------- 연혁 ----------
   왼쪽 칸에 연도(스크롤해도 붙어 있다), 오른쪽에 한 줄기 세로선과 그 위의 항목 카드.
   세로선은 연도마다 이어 그려 한 줄로 보인다. 선 위치(left)는 연도 칸 + 칸 사이 간격이다 — 너비를 바꾸면 세 곳을 함께 고친다. */
.history-lead {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 32px;
  padding-bottom: 36px;
  border-bottom: 1px solid var(--color-line);
}
.history-lead__text { max-width: 640px; }
.history-lead__body { margin-top: 12px; font-size: 18px; line-height: 1.75; color: var(--color-text-sub); }
.history-lead__body a { font-weight: 600; color: var(--color-brand); text-decoration: underline; text-underline-offset: 3px; text-decoration-color: var(--color-accent-light); }
.history-lead__body a:hover { text-decoration-color: currentColor; }
.history-lead__since {
  flex: none;
  font-size: 88px;
  font-weight: 700;
  line-height: 1;
  letter-spacing: -0.03em;
  color: var(--color-brand-soft);
}
.history-lead__since span {
  display: block;
  margin-bottom: 6px;
  font-size: var(--fs-small);
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-accent-dark);
}

.history {
  margin-top: 56px;
}
.history__year {
  position: relative;
  display: grid;
  grid-template-columns: 180px 1fr;
  column-gap: 56px;
  padding-bottom: 56px;
}
.history__year:last-child { padding-bottom: 0; }
/* 세로 줄기 */
.history__year::before {
  content: "";
  position: absolute;
  top: 0;
  bottom: 0;
  left: 236px;
  width: 2px;
  background: var(--color-line);
}
.history__year:first-child::before { top: 31px; }
.history__year:last-child::before { bottom: auto; height: 31px; }
/* 연도 마디 — 줄기 위의 큰 점 */
.history__year::after {
  content: "";
  position: absolute;
  top: 23px;
  left: 229px;
  width: 16px;
  height: 16px;
  border: 4px solid var(--color-bg);
  border-radius: 50%;
  background: var(--color-brand);
  box-shadow: 0 0 0 2px var(--color-brand);
}
.history__label {
  position: sticky;
  top: calc(var(--header-h) + 24px);
  align-self: start;
  font-size: 56px;
  font-weight: 700;
  line-height: 1;
  letter-spacing: -0.03em;
  text-align: right;
  color: var(--color-brand);
  font-variant-numeric: tabular-nums;
}
.history__items { display: flex; flex-direction: column; gap: 16px; padding-left: 40px; }
.history__item {
  position: relative;
  padding: 22px 26px;
  border: 1px solid var(--color-line);
  border-radius: 10px;
  background: var(--color-bg);
  transition: border-color var(--hover-dur) var(--ease), box-shadow var(--hover-dur) var(--ease), transform var(--hover-dur) var(--ease);
}
.history__item:hover { border-color: var(--color-brand); box-shadow: var(--shadow-hover); transform: translateX(4px); }
.history__title { transition: color var(--hover-dur) var(--ease); }
.history__item:hover .history__title { color: var(--color-brand); }
/* 항목 마디 — 줄기에서 카드로 잇는 짧은 가지 */
.history__item::before {
  content: "";
  position: absolute;
  top: 30px;
  left: -40px;
  width: 40px;
  height: 2px;
  background: var(--color-line);
  transform-origin: right;
  transition: background-color var(--hover-dur) var(--ease), transform var(--hover-dur) var(--ease);
}
.history__item::after {
  content: "";
  position: absolute;
  top: 26px;
  left: -44px;
  width: 10px;
  height: 10px;
  border: 2px solid var(--color-brand);
  border-radius: 50%;
  background: var(--color-bg);
  transition: background-color var(--hover-dur) var(--ease), border-color var(--hover-dur) var(--ease), transform var(--hover-dur) var(--ease);
}
/* 카드가 4px 오른쪽으로 가도 가지는 줄기에 닿아 있고 마디는 줄기 위에 남도록, 가지는 그만큼 늘리고 마디는 되돌린다 */
.history__item:hover::before { background: var(--color-brand); transform: scaleX(1.1); }
.history__item:hover::after { background: var(--color-accent); border-color: var(--color-accent); transform: translateX(-4px) scale(1.3); }
/* 그 해 첫 카드는 연도 마디에 바로 잇는다 */
.history__item:first-child::after { display: none; }
.history__meta { display: flex; flex-wrap: wrap; align-items: center; gap: 10px; }
.history__date {
  font-size: var(--fs-small);
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--color-accent-dark);
}
.history__title { margin-top: 12px; font-size: var(--fs-h3); font-weight: 700; line-height: 1.45; color: var(--color-text); }
.history__text { margin-top: 6px; font-size: var(--fs-small); line-height: 1.7; color: var(--color-text-sub); }
.history__link { margin-top: 14px; font-weight: 600; color: var(--color-brand); }
.history__link:hover { color: var(--color-accent-dark); }

/* ---------- 태블릿 ---------- */
@media (max-width: 1023px) {
  .intro-lead__since { font-size: 64px; }
  .intro-aims,
  .intro-links { grid-template-columns: 1fr; gap: 12px; }
  .intro-aims--four,
  .member-groups,
  .people,
  .org__groups { grid-template-columns: 1fr 1fr; }
  .welcome { grid-template-columns: 260px 1fr; gap: 40px; }
  .people--center .person { width: calc((100% - 20px) / 2); }
  .org__committees { grid-template-columns: 1fr; }
  .bylaws { grid-template-columns: 1fr; gap: 32px; }
  .bylaws__toc { position: static; }
  .bylaws__toc ol { display: flex; flex-wrap: wrap; gap: 0 16px; }
  .history__year { grid-template-columns: 112px 1fr; column-gap: 36px; }
  .history__year::before { left: 148px; }
  .history__year::after { left: 141px; }
  .history__label { font-size: 40px; }
}

/* ---------- 모바일 ---------- */
@media (max-width: 767px) {
  .intro-lead { flex-direction: column; align-items: flex-start; gap: 16px; }
  .intro-lead__since { font-size: 48px; }
  .intro-mission { padding: 22px 20px 22px 24px; }
  .intro-mission__text { font-size: 17px; }
  .intro-block,
  .intro-links { margin-top: 44px; }
  .intro-facts { grid-template-columns: 1fr; }
  .intro-facts__item + .intro-facts__item { border-left: 0; border-top: 1px solid var(--color-line); }
  .intro-aims--four,
  .member-groups,
  .org__groups { grid-template-columns: 1fr; }
  .person--lg { flex-direction: column; gap: 20px; padding: 28px 24px; text-align: center; }
  .person--lg .person__photo { width: 128px; height: 128px; }
  .person--lg .person__name { font-size: 26px; }
  .welcome { grid-template-columns: 1fr; gap: 28px; }
  .welcome__figure { position: static; max-width: 240px; }
  .welcome__lead { font-size: 17px; }
  .welcome__body { font-size: 16px; }
  .history-lead { flex-direction: column; align-items: flex-start; gap: 16px; }
  .history-lead__since { display: none; }
  .history-lead__body { font-size: 16px; }
  /* 한 줄로 — 줄기는 왼쪽 끝, 연도는 줄기 옆 제목 */
  .history { margin-top: 40px; }
  .history__year { grid-template-columns: 1fr; column-gap: 0; padding-left: 36px; padding-bottom: 40px; }
  .history__year::before { left: 7px; }
  .history__year::after { top: 8px; left: 0; }
  .history__year:first-child::before { top: 16px; }
  .history__year:last-child::before { height: 16px; }
  .history__label { position: static; margin-bottom: 16px; font-size: 32px; text-align: left; }
  .history__items { gap: 12px; padding-left: 0; }
  .history__item { padding: 18px 20px; }
  .history__item:hover { transform: none; }
  .history__item::before,
  .history__item::after { display: none; }
  .bylaws__draft { align-items: flex-start; flex-direction: column; gap: 8px; }
}

/* ---------- Affiliated Organizations (/about/affiliates) ----------
   협력사(admin 협력사 관리)를 분류마다 한 묶음으로. 회원 그룹은 두 줄 큰 카드, 다른 묶음은 로고가 앞에 오는 작은 카드.
   로고 칸은 메인 협력사 띠의 한 칸(home.css .partner-band__item)과 같은 비율이다 — 흰 바탕 로고 그림을 그대로 담는다.
   링크가 있는 카드는 .affil-card__link 의 ::after 가 카드 전체를 덮어 어디를 눌러도 간다. (docs/about.md) */
.affil-head { margin-bottom: 20px; }
.affil-head__lead { margin-top: 6px; font-size: var(--fs-small); line-height: 1.6; color: var(--color-text-muted); }
.affil-empty { margin-top: 40px; color: var(--color-text-muted); }

.affil-grid { display: grid; gap: 20px; }
.affil-grid--member { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.affil-grid--compact { grid-template-columns: repeat(auto-fill, minmax(176px, 1fr)); gap: 16px; }

.affil-card {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 18px;
  padding: 24px;
  border: 1px solid var(--color-line);
  border-radius: var(--radius);
  background: var(--color-bg);
  transition: border-color var(--hover-dur) var(--ease), box-shadow var(--hover-dur) var(--ease),
    transform var(--hover-dur) var(--ease);
}
.affil-grid--member .affil-card { border-top: 3px solid var(--color-accent); }
.affil-card--link:hover { border-color: var(--color-accent-line); box-shadow: var(--shadow-hover); transform: translateY(var(--hover-lift)); }
.affil-grid--member .affil-card--link:hover { border-top-color: var(--color-accent); }

.affil-card__logo {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 180px;
  height: 76px;
  overflow: hidden;
  border: 1px solid var(--color-line);
  border-radius: var(--radius);
  background: var(--color-bg);
}
.affil-card__logo img { display: block; max-width: 84%; max-height: 70%; width: auto; height: auto; object-fit: contain; }
/* 로고가 없을 때 — 약칭을 로고 자리에 크게. 약칭이 길어도 칸 안에서 줄을 바꾼다 */
.affil-card__abbr { min-width: 0; padding: 0 10px; font-size: 26px; font-weight: 800; letter-spacing: 0.04em; color: var(--color-brand); text-align: center; line-height: 1.1; overflow-wrap: anywhere; }
/* 약칭도 없으면 이름 전체 — 큰 글자로는 칸(76px)을 넘어 윗줄이 잘리므로 작은 글자로 세 줄까지, 넘치면 말줄임 */
.affil-card__abbr--name {
  display: -webkit-box;
  overflow: hidden;
  font-size: var(--fs-small);
  font-weight: 700;
  letter-spacing: 0;
  line-height: 1.3;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 3;
  line-clamp: 3;
}
.affil-card:not(:has(img)) .affil-card__logo { background: var(--color-brand-soft); border-color: var(--color-brand-line); }

.affil-card__body { display: flex; flex: 1; flex-direction: column; gap: 6px; }
.affil-card__country { font-size: var(--fs-xs); font-weight: 600; letter-spacing: 0.06em; text-transform: uppercase; color: var(--color-accent-dark); }
.affil-card__name { font-size: 18px; font-weight: 700; line-height: 1.4; color: var(--color-brand); }
.affil-card__short { font-weight: 600; color: var(--color-text-muted); }
.affil-card__text { font-size: var(--fs-small); line-height: 1.7; color: var(--color-text-sub); }
.affil-card__link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: auto;
  padding-top: 10px;
  font-size: var(--fs-small);
  font-weight: 600;
  color: var(--color-brand);
}
.affil-card__link::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: var(--radius);
}
.affil-card__link::after {
  content: "";
  width: 6px;
  height: 6px;
  border-top: 1.5px solid currentColor;
  border-right: 1.5px solid currentColor;
  transform: rotate(45deg);
}
.affil-card--link:hover .affil-card__link { color: var(--color-accent-dark); }
.affil-card__link:focus-visible { outline: none; }
.affil-card__link:focus-visible::before { outline: 2px solid var(--color-accent); outline-offset: 2px; }

/* 작은 카드 — 로고 칸이 카드 폭을 채우고 이름은 그 아래 한두 줄 */
.affil-grid--compact .affil-card { gap: 14px; padding: 16px; }
.affil-grid--compact .affil-card__logo { width: 100%; height: 96px; border: 0; }
.affil-grid--compact .affil-card__name { font-size: var(--fs-small); font-weight: 600; color: var(--color-text); }
.affil-grid--compact .affil-card__link { padding-top: 4px; font-size: var(--fs-xs); }

@media (max-width: 767px) {
  .affil-grid--member { grid-template-columns: 1fr; }
  .affil-grid--compact { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; }
  .affil-card { padding: 20px; }
  .affil-grid--compact .affil-card { padding: 12px; }
  .affil-grid--compact .affil-card__logo { height: 72px; }
  .affil-card--link:hover { transform: none; }
}