@charset "utf-8";
/* =========================================================================
   井上研究室 公開ページ共通スタイル（site.css）

   構成
     1. デザイントークン（色・文字・余白）
     2. ベース
     3. レイアウト
     4. ヘッダー／ナビゲーション
     5. ページ見出し・パンくず・サブナビ
     6. 汎用パーツ（ボタン・チップ・カード・フィルタ・ページ送り など）
     7. ページ別（トップ／研究／メンバー／ニュース／業績／学会／写真／教育／募集・連絡先）
     8. フッター
     9. モーション・印刷

   ========================================================================= */

/* 1. デザイントークン ---------------------------------------------------- */
:root {
  /* 色: 旧サイトの濃紺(#171632)とシアンを、白基調でも読める形で引き継ぐ */
  --c-navy: #171632;
  --c-navy-2: #2a2961;
  --c-text: #1f2433;
  --c-text-2: #4b5363;
  --c-text-3: #6b7280;
  --c-bg: #ffffff;
  --c-bg-soft: #f5f7fa;
  --c-line: #e3e7ee;
  --c-line-2: #cfd6e0;
  --c-accent: #0b7285;
  --c-accent-hover: #075a69;
  --c-accent-soft: #e6f4f6;
  --c-focus: #1c64d6;

  /* トップ画像のプリズムの4色（cAMP↑・cAMP↓・PLCβ・Rho）。装飾とカテゴリ色に使用 */
  --c-red: #d9534f;
  --c-yellow: #e2a72a;
  --c-green: #3f9d5a;
  --c-blue: #2f80c0;

  --font-sans: "Noto Sans JP", "Hiragino Sans", "Hiragino Kaku Gothic ProN", "Yu Gothic UI", "Meiryo", system-ui, sans-serif;
  --font-display: "Josefin Sans", "Noto Sans JP", system-ui, sans-serif;

  --radius-s: 8px;
  --radius: 12px;
  --radius-l: 20px;
  --shadow-1: 0 1px 2px rgba(23, 22, 50, 0.06);
  --shadow-2: 0 10px 30px rgba(23, 22, 50, 0.09);

  --container: 1160px;
  --container-narrow: 820px;
  --gutter: clamp(20px, 4vw, 40px);
  --header-h: 68px;
  --section-y: clamp(56px, 8vw, 104px);
}

/* 2. ベース -------------------------------------------------------------- */
*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
  scroll-padding-top: calc(var(--header-h) + 16px);
}

body {
  margin: 0;
  background: var(--c-bg);
  color: var(--c-text);
  font-family: var(--font-sans);
  font-size: 1rem;
  line-height: 1.9;
  letter-spacing: 0.02em;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  line-break: strict;
}

html[lang="en"] body {
  line-height: 1.7;
  letter-spacing: 0;
}

html.menu-open {
  overflow: hidden;
}

h1, h2, h3, h4, h5 {
  margin: 0;
  color: var(--c-navy);
  font-weight: 700;
  line-height: 1.45;
  letter-spacing: 0.03em;
}

html[lang="en"] :is(h1, h2, h3, h4, h5) {
  letter-spacing: 0;
}

p {
  margin: 0 0 1.2em;
}

p:last-child {
  margin-bottom: 0;
}

img,
video,
iframe {
  max-width: 100%;
}

/* hidden 属性は display 指定より常に優先する（JS で出し入れする要素用） */
[hidden] {
  display: none !important;
}

img {
  height: auto;
}

a {
  color: var(--c-accent);
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 0.2em;
  transition: color 0.2s ease;
}

a:hover {
  color: var(--c-accent-hover);
}

:focus-visible {
  outline: 2px solid var(--c-focus);
  outline-offset: 2px;
}

button {
  font: inherit;
  color: inherit;
}

ul,
ol {
  padding-left: 1.4em;
}

strong {
  font-weight: 700;
}

.sr-only {
  position: absolute !important;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.skip-link {
  position: absolute;
  top: -100px;
  left: 16px;
  z-index: 1000;
  padding: 10px 16px;
  border-radius: var(--radius-s);
  background: var(--c-navy);
  color: #fff;
  font-weight: 700;
  text-decoration: none;
}

.skip-link:focus {
  top: 12px;
  color: #fff;
}

/* 3. レイアウト ----------------------------------------------------------- */
.container {
  width: 100%;
  max-width: calc(var(--container) + var(--gutter) * 2);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.container--narrow {
  max-width: calc(var(--container-narrow) + var(--gutter) * 2);
}

.section {
  padding-block: var(--section-y);
}

.section--soft {
  background: var(--c-bg-soft);
}

.section + .section:not(.section--soft) {
  padding-top: 0;
}

.section--soft + .section,
.section + .section--soft {
  padding-top: var(--section-y);
}

.section-head {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  justify-content: space-between;
  gap: 12px 24px;
  margin-bottom: clamp(24px, 4vw, 40px);
}

.section-head > div {
  min-width: 0;
}

.eyebrow {
  display: flex;
  align-items: center;
  gap: 0.6em;
  margin: 0 0 0.5rem;
  font-family: var(--font-display);
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--c-accent);
  line-height: 1.4;
}

.eyebrow::before {
  content: "";
  width: 20px;
  height: 2px;
  background: currentColor;
  border-radius: 1px;
}

.section-title {
  font-size: clamp(1.5rem, 1.15rem + 1.2vw, 2.125rem);
  letter-spacing: 0.05em;
}

.section-lead {
  max-width: 46em;
  margin: 0.9rem 0 0;
  color: var(--c-text-2);
}

.sub-title {
  margin: 0 0 1rem;
  font-size: clamp(1.125rem, 1.02rem + 0.4vw, 1.3125rem);
}

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

.mt-md {
  margin-top: 1.5rem;
}

.mt-lg {
  margin-top: clamp(40px, 6vw, 64px);
}

.split {
  display: grid;
  align-items: start;
  gap: clamp(32px, 5vw, 64px);
}

.split > * {
  min-width: 0;
}

@media (min-width: 900px) {
  .split {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  }

  .split--wide-left {
    grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr);
  }
}

.stack > * + * {
  margin-top: var(--stack, 1.25rem);
}

.prose {
  max-width: 44em;
}

.prose > :first-child {
  margin-top: 0;
}

.prose ul {
  margin: 0 0 1.2em;
}

.prose li + li {
  margin-top: 0.35em;
}

.grid {
  display: grid;
  gap: clamp(16px, 2.5vw, 28px);
}

.grid > * {
  min-width: 0;
}

/* 列数は画面幅で固定する（カード数によって 3+1 のような半端な並びにならないように） */
@media (min-width: 720px) {
  .grid--2 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 640px) {
  .grid--3,
  .grid--4 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 960px) {
  .grid--3 {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 1024px) {
  .grid--4 {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

.more-link {
  display: inline-flex;
  align-items: center;
  gap: 0.45em;
  font-weight: 700;
  font-size: 0.9375rem;
  color: var(--c-accent);
  text-decoration: none;
  white-space: nowrap;
}

.more-link svg {
  width: 1em;
  height: 1em;
  transition: transform 0.2s ease;
}

.more-link:hover svg {
  transform: translateX(3px);
}

.ext-icon {
  display: inline-block;
  width: 0.8em;
  height: 0.8em;
  margin-left: 0.2em;
  vertical-align: -0.05em;
}

/* 4. ヘッダー／ナビゲーション ------------------------------------------ */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  min-height: var(--header-h);
  background: #fff;
  border-bottom: 1px solid var(--c-line);
  transition: box-shadow 0.2s ease;
}

/* プリズムの4色を細いラインで。トップ画像とサイト全体をつなぐ */
.site-header::before {
  content: "";
  position: absolute;
  inset: 0 0 auto;
  height: 3px;
  background: linear-gradient(90deg, var(--c-red), var(--c-yellow) 33%, var(--c-green) 66%, var(--c-blue));
}

.site-header.is-scrolled {
  box-shadow: 0 4px 18px rgba(23, 22, 50, 0.07);
}

.site-header__inner {
  display: flex;
  align-items: center;
  gap: 20px;
  height: var(--header-h);
}

.brand {
  display: flex;
  flex-direction: column;
  justify-content: center;
  min-width: 0;
  margin-right: auto;
  color: var(--c-navy);
  text-decoration: none;
  line-height: 1.25;
}

.brand:hover {
  color: var(--c-navy);
}

.brand__name {
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: 0.08em;
}

html[lang="en"] .brand__name {
  letter-spacing: 0.02em;
}

.brand__sub {
  margin-top: 2px;
  overflow: hidden;
  font-size: 0.6875rem;
  color: var(--c-text-3);
  letter-spacing: 0.04em;
  white-space: nowrap;
  text-overflow: ellipsis;
}

.gnav {
  display: none;
}

.gnav__list {
  display: flex;
  align-items: center;
  gap: 2px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.gnav__link {
  position: relative;
  display: block;
  padding: 8px 11px;
  border-radius: var(--radius-s);
  color: var(--c-text-2);
  font-size: 0.9375rem;
  font-weight: 500;
  letter-spacing: 0.04em;
  line-height: 1.5;
  text-decoration: none;
  white-space: nowrap;
  transition: color 0.2s ease, background-color 0.2s ease;
}

html[lang="en"] .gnav__link {
  letter-spacing: 0;
}

.gnav__link:hover {
  color: var(--c-navy);
  background: var(--c-bg-soft);
}

.gnav__link[aria-current] {
  color: var(--c-navy);
}

.gnav__link[aria-current]::after {
  content: "";
  position: absolute;
  left: 11px;
  right: 11px;
  bottom: -13px;
  height: 2px;
  border-radius: 1px;
  background: var(--c-accent);
}

.gnav__link--cta {
  margin-left: 6px;
  padding-inline: 16px;
  border: 1px solid var(--c-line-2);
  border-radius: 999px;
  color: var(--c-navy);
}

.gnav__link--cta:hover {
  border-color: var(--c-navy);
  background: #fff;
}

.gnav__link--cta[aria-current] {
  border-color: var(--c-accent);
  background: var(--c-accent-soft);
}

.gnav__link--cta[aria-current]::after {
  display: none;
}

.lang-switch {
  display: inline-flex;
  flex-shrink: 0;
  padding: 3px;
  border: 1px solid var(--c-line);
  border-radius: 999px;
  background: #fff;
}

.lang-switch a {
  padding: 3px 10px;
  border-radius: 999px;
  color: var(--c-text-3);
  font-family: var(--font-display);
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  line-height: 1.5;
  text-decoration: none;
}

.lang-switch a:hover {
  color: var(--c-navy);
}

.lang-switch a[aria-current] {
  background: var(--c-navy);
  color: #fff;
}

.site-header .lang-switch {
  display: none;
}

.menu-toggle {
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  margin-right: -8px;
  padding: 0;
  border: 0;
  border-radius: var(--radius-s);
  background: transparent;
  cursor: pointer;
}

.menu-toggle__bar {
  display: block;
  width: 22px;
  height: 2px;
  border-radius: 1px;
  background: var(--c-navy);
  transition: transform 0.25s ease, opacity 0.2s ease;
}

.menu-toggle[aria-expanded="true"] .menu-toggle__bar:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.menu-toggle[aria-expanded="true"] .menu-toggle__bar:nth-child(2) {
  opacity: 0;
}

.menu-toggle[aria-expanded="true"] .menu-toggle__bar:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

.mobile-menu {
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  height: calc(100vh - var(--header-h));
  height: calc(100dvh - var(--header-h));
  overflow-y: auto;
  overscroll-behavior: contain;
  padding: 8px var(--gutter) 40px;
  border-top: 1px solid var(--c-line);
  background: #fff;
}

.mobile-menu[hidden] {
  display: none;
}

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

.mnav__link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 14px 4px;
  border-bottom: 1px solid var(--c-line);
  color: var(--c-navy);
  font-size: 1.0625rem;
  font-weight: 500;
  text-decoration: none;
}

.mnav__link svg {
  width: 18px;
  height: 18px;
  color: var(--c-text-3);
}

.mnav__link[aria-current] {
  color: var(--c-accent);
  font-weight: 700;
}

.mnav__sub {
  margin: 0;
  padding: 4px 0 8px;
  list-style: none;
  border-bottom: 1px solid var(--c-line);
}

.mnav__sub a {
  display: block;
  padding: 9px 4px 9px 20px;
  color: var(--c-text-2);
  font-size: 0.9375rem;
  text-decoration: none;
}

.mnav__sub a[aria-current] {
  color: var(--c-accent);
  font-weight: 700;
}

.mnav__item--has-sub > .mnav__link {
  border-bottom: 0;
}

.mobile-menu__foot {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-top: 24px;
}

@media (min-width: 1100px) {
  .gnav {
    display: block;
  }

  .site-header .lang-switch {
    display: inline-flex;
  }

  .menu-toggle,
  .mobile-menu {
    display: none !important;
  }
}

@media (min-width: 1100px) and (max-width: 1239px) {
  .gnav__link {
    padding-inline: 8px;
    font-size: 0.875rem;
  }

  .gnav__link[aria-current]::after {
    left: 8px;
    right: 8px;
  }
}

/* 5. ページ見出し・パンくず・サブナビ ----------------------------------- */
.page-header {
  position: relative;
  overflow: hidden;
  padding-block: clamp(32px, 5.5vw, 68px) clamp(32px, 5vw, 60px);
  background: var(--c-bg-soft);
  border-bottom: 1px solid var(--c-line);
}

/* 右上に淡いスペクトルの光。主張しすぎない装飾 */
.page-header::after {
  content: "";
  position: absolute;
  top: -120px;
  right: -80px;
  width: 360px;
  height: 360px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(47, 128, 192, 0.1), rgba(63, 157, 90, 0.05) 45%, transparent 70%);
  pointer-events: none;
}

.page-header .container {
  position: relative;
}

.page-title {
  font-size: clamp(1.875rem, 1.35rem + 2vw, 2.75rem);
  letter-spacing: 0.08em;
}

html[lang="en"] .page-title {
  letter-spacing: 0.01em;
}

.page-lead {
  max-width: 46em;
  margin: 0.9rem 0 0;
  color: var(--c-text-2);
  font-size: clamp(1rem, 0.96rem + 0.2vw, 1.0625rem);
}

.breadcrumb ol {
  display: flex;
  flex-wrap: wrap;
  gap: 2px 8px;
  margin: 0 0 clamp(16px, 3vw, 28px);
  padding: 0;
  list-style: none;
  font-size: 0.8125rem;
  color: var(--c-text-3);
  line-height: 1.6;
}

.breadcrumb li + li::before {
  content: "/";
  margin-right: 8px;
  color: var(--c-line-2);
}

.breadcrumb a {
  color: var(--c-text-3);
  text-decoration: none;
}

.breadcrumb a:hover {
  color: var(--c-accent);
  text-decoration: underline;
}

.breadcrumb [aria-current] {
  color: var(--c-text-2);
}

.subnav {
  background: #fff;
  border-bottom: 1px solid var(--c-line);
}

.subnav__list {
  display: flex;
  gap: 4px;
  margin: 0;
  padding: 0;
  overflow-x: auto;
  list-style: none;
  scrollbar-width: none;
}

.subnav__list::-webkit-scrollbar {
  display: none;
}

.subnav__link {
  display: block;
  padding: 14px 14px 12px;
  border-bottom: 2px solid transparent;
  color: var(--c-text-2);
  font-size: 0.9375rem;
  font-weight: 500;
  text-decoration: none;
  white-space: nowrap;
}

.subnav__link:hover {
  color: var(--c-navy);
}

.subnav__link[aria-current] {
  border-bottom-color: var(--c-accent);
  color: var(--c-navy);
  font-weight: 700;
}

/* 6. 汎用パーツ ----------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5em;
  min-height: 48px;
  padding: 0.7em 1.5em;
  border: 1px solid transparent;
  border-radius: 999px;
  font-size: 0.9375rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  line-height: 1.3;
  text-align: center;
  text-decoration: none;
  cursor: pointer;
  transition: background-color 0.2s ease, border-color 0.2s ease, color 0.2s ease, transform 0.2s ease;
}

.btn svg {
  width: 1.05em;
  height: 1.05em;
  flex-shrink: 0;
}

.btn--primary {
  background: var(--c-navy);
  color: #fff;
}

.btn--primary:hover {
  background: var(--c-navy-2);
  color: #fff;
}

.btn--ghost {
  border-color: var(--c-line-2);
  background: #fff;
  color: var(--c-navy);
}

.btn--ghost:hover {
  border-color: var(--c-navy);
  color: var(--c-navy);
}

.btn--light {
  background: #fff;
  color: var(--c-navy);
}

.btn--light:hover {
  background: var(--c-accent-soft);
  color: var(--c-navy);
}

.btn--ghost-light {
  border-color: rgba(255, 255, 255, 0.45);
  color: #fff;
}

.btn--ghost-light:hover {
  border-color: #fff;
  color: #fff;
  background: rgba(255, 255, 255, 0.08);
}

.btn--sm {
  min-height: 40px;
  padding: 0.45em 1.1em;
  font-size: 0.875rem;
}

.btn-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

/* カテゴリなどのラベル */
.chip {
  --chip-bg: #eef1f5;
  --chip-fg: #465063;
  display: inline-flex;
  align-items: center;
  gap: 0.35em;
  padding: 0.1em 0.75em;
  border-radius: 999px;
  background: var(--chip-bg);
  color: var(--chip-fg);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  line-height: 1.7;
  white-space: nowrap;
}

.cat-paper,
.cat-press {
  --chip-bg: #e8f0fb;
  --chip-fg: #1d4f91;
}

.cat-conference {
  --chip-bg: #e6f4ea;
  --chip-fg: #1f6b3a;
}

.cat-award {
  --chip-bg: #fdf1d8;
  --chip-fg: #875400;
}

.cat-collaboration {
  --chip-bg: #efeafb;
  --chip-fg: #5a3d99;
}

.cat-lab {
  --chip-bg: #fdeceb;
  --chip-fg: #a3372b;
}

.cat-grant,
.cat-other {
  --chip-bg: #eef1f5;
  --chip-fg: #465063;
}

.chip--accent {
  --chip-bg: var(--c-accent-soft);
  --chip-fg: var(--c-accent-hover);
}

.chip--outline {
  background: #fff;
  box-shadow: inset 0 0 0 1px var(--c-line-2);
}

.card {
  position: relative;
  padding: clamp(20px, 3vw, 28px);
  border: 1px solid var(--c-line);
  border-radius: var(--radius);
  background: #fff;
}

.card__title {
  margin: 0 0 0.6rem;
  font-size: 1.125rem;
}

.card__text {
  color: var(--c-text-2);
  font-size: 0.9375rem;
}

.card--link {
  display: flex;
  flex-direction: column;
  color: inherit;
  text-decoration: none;
  transition: border-color 0.2s ease, box-shadow 0.2s ease, transform 0.2s ease;
}

.card--link:hover {
  border-color: var(--c-line-2);
  box-shadow: var(--shadow-2);
  transform: translateY(-2px);
  color: inherit;
}

.card--link .more-link {
  margin-top: auto;
  padding-top: 1rem;
}

.card--soft {
  border-color: transparent;
  background: var(--c-bg-soft);
}

.card__icon {
  display: inline-grid;
  place-items: center;
  width: 44px;
  height: 44px;
  margin-bottom: 14px;
  border-radius: 12px;
  background: var(--c-accent-soft);
  color: var(--c-accent);
}

.card__icon svg {
  width: 22px;
  height: 22px;
}

.card__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 12px;
  margin-top: auto;
  padding-top: 14px;
  border-top: 1px solid var(--c-line);
  color: var(--c-text-2);
  font-size: 0.875rem;
}

.card__meta dt {
  font-weight: 700;
  color: var(--c-navy);
}

.card__meta dd {
  margin: 0;
}

.card--flex {
  display: flex;
  flex-direction: column;
}

.card--flex .card__text {
  margin-bottom: 1rem;
}

/* 絞り込みボタン・年度切替 */
.filter {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.filter--scroll {
  flex-wrap: nowrap;
  overflow-x: auto;
  padding-bottom: 4px;
  scrollbar-width: thin;
}

.filter__btn {
  display: inline-flex;
  flex-shrink: 0;
  align-items: center;
  gap: 0.5em;
  min-height: 40px;
  padding: 0 16px;
  border: 1px solid var(--c-line-2);
  border-radius: 999px;
  background: #fff;
  color: var(--c-text-2);
  font-size: 0.875rem;
  font-weight: 500;
  line-height: 1;
  cursor: pointer;
  transition: background-color 0.2s ease, border-color 0.2s ease, color 0.2s ease;
}

.filter__btn:hover {
  border-color: var(--c-navy);
  color: var(--c-navy);
}

.filter__btn[aria-pressed="true"] {
  border-color: var(--c-navy);
  background: var(--c-navy);
  color: #fff;
}

.filter__count {
  font-size: 0.75rem;
  opacity: 0.7;
}

.toolbar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: clamp(20px, 3vw, 32px);
}

.toolbar > * {
  min-width: 0;
}

.result-count {
  margin: 0;
  color: var(--c-text-3);
  font-size: 0.875rem;
}

.pagination {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 6px;
  margin-top: clamp(28px, 4vw, 44px);
}

.pagination button {
  min-width: 44px;
  height: 44px;
  padding: 0 12px;
  border: 1px solid var(--c-line-2);
  border-radius: 999px;
  background: #fff;
  color: var(--c-text-2);
  font-size: 0.875rem;
  cursor: pointer;
}

.pagination button:hover:not(:disabled) {
  border-color: var(--c-navy);
  color: var(--c-navy);
}

.pagination button[aria-current="page"] {
  border-color: var(--c-navy);
  background: var(--c-navy);
  color: #fff;
}

.pagination button:disabled {
  opacity: 0.4;
  cursor: default;
}

.pagination__info {
  width: 100%;
  margin-top: 6px;
  color: var(--c-text-3);
  font-size: 0.8125rem;
  text-align: center;
}

.state {
  padding: 32px 20px;
  border: 1px dashed var(--c-line-2);
  border-radius: var(--radius);
  color: var(--c-text-3);
  text-align: center;
}

.search {
  position: relative;
  width: min(100%, 420px);
}

.search svg {
  position: absolute;
  top: 50%;
  left: 16px;
  width: 18px;
  height: 18px;
  color: var(--c-text-3);
  transform: translateY(-50%);
  pointer-events: none;
}

.search input {
  width: 100%;
  min-height: 48px;
  padding: 0 16px 0 44px;
  border: 1px solid var(--c-line-2);
  border-radius: 999px;
  background: #fff;
  color: var(--c-text);
  font: inherit;
  font-size: 1rem;
}

.search input:focus {
  border-color: var(--c-accent);
  outline: none;
  box-shadow: 0 0 0 3px var(--c-accent-soft);
}

/* 図版・写真 */
.figure {
  margin: 0;
}

.figure img,
.figure video {
  display: block;
  width: 100%;
  height: auto;
  border: 1px solid var(--c-line);
  border-radius: var(--radius);
  background: #fff;
}

.figure--photo img {
  aspect-ratio: 4 / 3;
  object-fit: cover;
  border: 0;
  background: var(--c-bg-soft);
}

.figure--small {
  max-width: 420px;
}

.figure figcaption {
  margin-top: 0.6em;
  color: var(--c-text-3);
  font-size: 0.8125rem;
  line-height: 1.6;
}

.figure-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 240px), 1fr));
  gap: 16px;
}

.figure-row > * {
  min-width: 0;
}

.zoomable {
  display: block;
  cursor: zoom-in;
}

.zoomable img {
  transition: opacity 0.2s ease;
}

.zoomable:hover img {
  opacity: 0.92;
}

/* 画像がないときの代わり（カテゴリ色＋アイコン） */
.thumb-ph {
  display: grid;
  place-items: center;
  width: 100%;
  height: 100%;
  background: var(--chip-bg, var(--c-bg-soft));
  color: var(--chip-fg, var(--c-text-3));
}

.thumb-ph svg {
  width: 34%;
  max-width: 44px;
  height: auto;
  opacity: 0.8;
}

/* 写真の拡大表示 */
.lightbox {
  width: 100vw;
  max-width: none;
  height: 100vh;
  height: 100dvh;
  max-height: none;
  margin: 0;
  padding: 0;
  border: 0;
  background: transparent;
  color: #fff;
}

.lightbox::backdrop {
  background: rgba(9, 10, 22, 0.95);
}

.lightbox[open] {
  display: grid;
  grid-template-rows: auto minmax(0, 1fr) auto;
}

.lightbox__bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 12px 16px;
  font-size: 0.875rem;
  color: rgba(255, 255, 255, 0.8);
}

.lightbox__stage {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  grid-template-rows: minmax(0, 1fr);
  align-items: center;
  gap: 8px;
  padding: 0 8px;
  min-height: 0;
}

.lightbox__figure {
  display: grid;
  place-items: center;
  height: 100%;
  min-height: 0;
  margin: 0;
}

/* 画像は必ず画面内に収める（上下のバー・キャプション分を除いた高さ） */
.lightbox__figure img {
  width: auto;
  height: auto;
  max-width: 100%;
  max-height: calc(100vh - 150px);
  max-height: calc(100dvh - 150px);
  object-fit: contain;
  border-radius: 6px;
}

.lightbox__caption {
  min-height: 3em;
  padding: 10px 20px 20px;
  font-size: 0.875rem;
  line-height: 1.6;
  color: rgba(255, 255, 255, 0.85);
  text-align: center;
}

.lightbox__btn {
  display: grid;
  place-items: center;
  width: 44px;
  height: 44px;
  padding: 0;
  border: 1px solid rgba(255, 255, 255, 0.25);
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.08);
  color: #fff;
  cursor: pointer;
}

.lightbox__btn:hover {
  background: rgba(255, 255, 255, 0.18);
}

.lightbox__btn svg {
  width: 20px;
  height: 20px;
}

.lightbox__btn[hidden] {
  display: grid !important;
  visibility: hidden;
}

/* 目次（研究内容・教育活動） */
.doc-layout {
  display: grid;
  gap: clamp(28px, 5vw, 56px);
}

.doc-layout > * {
  min-width: 0;
}

.toc {
  padding: 20px 22px;
  border: 1px solid var(--c-line);
  border-radius: var(--radius);
  background: #fff;
}

.toc__title {
  margin: 0 0 10px;
  font-family: var(--font-display);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--c-text-3);
}

.toc__list {
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: toc;
}

.toc__link {
  display: flex;
  gap: 10px;
  padding: 7px 0;
  color: var(--c-text-2);
  font-size: 0.875rem;
  line-height: 1.55;
  text-decoration: none;
}

.toc__link::before {
  counter-increment: toc;
  content: counter(toc, decimal-leading-zero);
  flex-shrink: 0;
  font-family: var(--font-display);
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--c-accent);
  line-height: 1.8;
}

.toc__link:hover {
  color: var(--c-navy);
}

.toc__link[aria-current="true"] {
  color: var(--c-navy);
  font-weight: 700;
}

@media (min-width: 1024px) {
  .doc-layout {
    grid-template-columns: 250px minmax(0, 1fr);
  }

  .toc {
    position: sticky;
    top: calc(var(--header-h) + 24px);
    align-self: start;
    max-height: calc(100vh - var(--header-h) - 48px);
    overflow-y: auto;
    padding: 0;
    border: 0;
    background: transparent;
  }

  .toc__list {
    border-left: 2px solid var(--c-line);
  }

  .toc__link {
    margin-left: -2px;
    padding: 7px 0 7px 14px;
    border-left: 2px solid transparent;
  }

  .toc__link[aria-current="true"] {
    border-left-color: var(--c-accent);
  }
}

@media (max-width: 1023px) {
  .toc__list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(min(100%, 280px), 1fr));
    column-gap: 24px;
  }
}

/* 本文中の数値を抜き出したリスト（研究概要） */
.fact-list {
  display: grid;
  gap: 12px;
}

.fact-list li {
  display: grid;
  gap: 2px;
  padding: 18px 22px;
  border-left: 3px solid var(--c-accent);
  border-radius: 0 var(--radius) var(--radius) 0;
  background: var(--c-bg-soft);
}

.fact-list strong {
  color: var(--c-navy);
  font-size: clamp(1.5rem, 1.2rem + 1vw, 2rem);
  line-height: 1.3;
}

.fact-list span {
  color: var(--c-text-2);
  font-size: 0.875rem;
  line-height: 1.6;
}

.card--link .card__title,
.card--link .card__text {
  display: block;
}

/* 研究テーマ・教育活動などの記事ブロック */
.topic {
  padding-block: clamp(32px, 5vw, 56px);
  border-top: 1px solid var(--c-line);
}

.topic:first-child {
  padding-top: 0;
  border-top: 0;
}

.topic__num {
  margin: 0 0 0.35rem;
  font-family: var(--font-display);
  font-size: 0.875rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  color: var(--c-accent);
}

.topic__title {
  margin: 0 0 1.25rem;
  font-size: clamp(1.25rem, 1.05rem + 0.8vw, 1.625rem);
}

.topic__subtitle {
  margin: 1.75rem 0 0.75rem;
  font-size: 1.0625rem;
  color: var(--c-navy);
}

.topic__media {
  margin: 1.5rem 0;
}

.topic > .figure--photo {
  max-width: 640px;
}

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

.topic > .prose + .topic__media,
.topic__media + .prose {
  margin-top: 1.5rem;
}

.check-list {
  margin: 0 0 1.2em;
  padding: 0;
  list-style: none;
}

.check-list li {
  position: relative;
  padding-left: 1.5em;
}

.check-list li + li {
  margin-top: 0.4em;
}

.check-list li::before {
  content: "";
  position: absolute;
  top: 0.72em;
  left: 0.2em;
  width: 0.5em;
  height: 0.5em;
  border-radius: 50%;
  background: var(--c-accent);
}

.note-box {
  padding: clamp(20px, 3vw, 28px);
  border-left: 3px solid var(--c-accent);
  border-radius: 0 var(--radius) var(--radius) 0;
  background: var(--c-bg-soft);
}

/* 7-1. トップページ ------------------------------------------------------ */
.hero {
  padding-block: clamp(28px, 5vw, 72px) clamp(40px, 6vw, 88px);
  background: #fff;
}

.hero__inner {
  display: grid;
  align-items: center;
  gap: clamp(28px, 5vw, 64px);
}

.hero__inner > * {
  min-width: 0;
}

.hero__affil {
  margin: 0;
  color: var(--c-text-3);
  font-size: 0.875rem;
  letter-spacing: 0.06em;
  line-height: 1.6;
}

.hero__title {
  margin-top: 0.4rem;
  font-size: clamp(2.25rem, 1.55rem + 3vw, 3.5rem);
  letter-spacing: 0.1em;
  line-height: 1.25;
}

html[lang="en"] .hero__title {
  letter-spacing: 0.02em;
}

.hero__title-en {
  display: block;
  margin-top: 0.6rem;
  font-family: var(--font-display);
  font-size: 0.34em;
  font-weight: 600;
  letter-spacing: 0.24em;
  color: var(--c-accent);
  text-transform: uppercase;
}

.hero__catch {
  margin: clamp(18px, 2.5vw, 28px) 0 0;
  color: var(--c-navy);
  font-size: clamp(1.125rem, 1rem + 0.6vw, 1.4375rem);
  font-weight: 700;
  line-height: 1.75;
  letter-spacing: 0.05em;
}

html[lang="en"] .hero__catch {
  letter-spacing: 0;
  line-height: 1.5;
}

.hero__lead {
  margin: 1rem 0 0;
  color: var(--c-text-2);
}

.hero__actions {
  margin-top: clamp(22px, 3vw, 32px);
}

.hero__note {
  margin: 1.1rem 0 0;
  color: var(--c-text-3);
  font-size: 0.875rem;
}

.hero__visual {
  position: relative;
  order: -1;
  margin: 0;
  overflow: hidden;
  aspect-ratio: 16 / 9;
  border-radius: var(--radius-l);
  background: #141418;
  box-shadow: 0 24px 60px rgba(23, 22, 50, 0.18);
}

.hero__visual img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

@media (min-width: 960px) {
  .hero__inner {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.12fr);
  }

  .hero__visual {
    order: 0;
  }
}

/* トップ: 研究分野と研究手法 */
.pillars {
  display: grid;
  gap: clamp(24px, 4vw, 48px);
}

@media (min-width: 900px) {
  .pillars {
    grid-template-columns: 1fr 1fr;
  }
}

.pillar__label {
  margin: 0 0 12px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--c-line);
  font-size: 1rem;
}

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

.pillar-list li {
  display: grid;
  grid-template-columns: 2.4em minmax(0, 1fr);
  gap: 4px 12px;
  padding: 12px 0;
}

.pillar-list li + li {
  border-top: 1px dashed var(--c-line);
}

.pillar-list .num {
  grid-row: span 2;
  font-family: var(--font-display);
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--c-accent);
  line-height: 1.9;
}

.pillar-list h4 {
  font-size: 1rem;
}

.pillar-list p {
  margin: 0;
  color: var(--c-text-2);
  font-size: 0.9375rem;
  line-height: 1.8;
}

/* トップ: 研究テーマ（図つきカード） */
.theme-card {
  padding: 0;
  overflow: hidden;
}

.theme-card__media {
  display: grid;
  place-items: center;
  aspect-ratio: 16 / 10;
  padding: 14px;
  border-bottom: 1px solid var(--c-line);
  background: #fff;
}

.theme-card__media img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.theme-card__body {
  display: flex;
  flex: 1;
  flex-direction: column;
  padding: 18px 20px 20px;
}

.theme-card__title {
  margin: 0 0 0.5rem;
  font-size: 1rem;
  line-height: 1.6;
}

.theme-card__text {
  margin: 0;
  color: var(--c-text-2);
  font-size: 0.875rem;
  line-height: 1.8;
}

/* トップ: 研究室の様子（写真モザイク） */
.mosaic {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}

.mosaic__item {
  position: relative;
  display: block;
  overflow: hidden;
  aspect-ratio: 4 / 3;
  border-radius: 14px;
  background: var(--c-bg-soft);
  color: #fff;
  text-decoration: none;
}

.mosaic__item:first-child {
  grid-column: 1 / -1;
  aspect-ratio: 16 / 10;
}

.mosaic__item img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s ease;
}

.mosaic__item:hover img {
  transform: scale(1.04);
}

.mosaic__caption {
  position: absolute;
  inset: auto 0 0;
  padding: 36px 14px 12px;
  background: linear-gradient(to top, rgba(10, 12, 28, 0.82), rgba(10, 12, 28, 0));
  font-size: 0.875rem;
  font-weight: 700;
  line-height: 1.45;
}

.mosaic__caption time {
  display: block;
  margin-bottom: 2px;
  font-size: 0.75rem;
  font-weight: 400;
  opacity: 0.85;
}

@media (min-width: 768px) {
  .mosaic {
    grid-template-columns: 2fr 1fr 1fr;
    grid-template-rows: repeat(2, clamp(150px, 17vw, 210px));
    gap: 12px;
  }

  .mosaic__item,
  .mosaic__item:first-child {
    aspect-ratio: auto;
  }

  .mosaic__item:first-child {
    grid-column: 1;
    grid-row: 1 / 3;
  }

  .mosaic__item:first-child .mosaic__caption {
    padding: 48px 20px 18px;
    font-size: 1rem;
  }
}

/* トップ: メンバーの顔写真 */
.faces {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(74px, 1fr));
  gap: 18px 12px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.faces a {
  display: block;
  color: var(--c-text-2);
  font-size: 0.75rem;
  line-height: 1.4;
  text-align: center;
  text-decoration: none;
}

.faces img {
  display: block;
  width: 100%;
  aspect-ratio: 1;
  margin-bottom: 6px;
  border-radius: 50%;
  object-fit: cover;
  background: var(--c-bg-soft);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.faces a:hover img {
  transform: translateY(-2px);
  box-shadow: 0 0 0 3px #fff, 0 0 0 5px var(--c-accent);
}

.member-counts {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 20px;
  margin: 0 0 24px;
  padding: 0;
  list-style: none;
  color: var(--c-text-2);
  font-size: 0.9375rem;
}

.member-counts strong {
  margin-left: 0.3em;
  font-family: var(--font-display);
  font-size: 1.375rem;
  color: var(--c-navy);
}

/* トップ: 掲載記事（PDF）カード */
.article-card {
  display: grid;
  grid-template-columns: 96px minmax(0, 1fr);
  align-items: center;
  gap: 18px;
  padding: 16px;
  border: 1px solid var(--c-line);
  border-radius: var(--radius);
  background: #fff;
  color: inherit;
  text-decoration: none;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.article-card:hover {
  border-color: var(--c-line-2);
  box-shadow: var(--shadow-2);
  color: inherit;
}

.article-card img {
  width: 96px;
  aspect-ratio: 600 / 849;
  object-fit: cover;
  border: 1px solid var(--c-line);
  border-radius: 4px;
  background: #fff;
}

.article-card__label {
  display: block;
  margin-bottom: 4px;
  color: var(--c-accent);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.06em;
}

.article-card__title {
  display: block;
  color: var(--c-navy);
  font-weight: 700;
  line-height: 1.6;
}

.article-card__meta {
  display: block;
  margin-top: 4px;
  color: var(--c-text-3);
  font-size: 0.8125rem;
}

.link-list {
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--c-line);
}

.link-list a {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  gap: 4px 16px;
  padding: 16px 4px;
  border-bottom: 1px solid var(--c-line);
  color: var(--c-navy);
  text-decoration: none;
}

.link-list a:hover {
  color: var(--c-accent);
}

.link-list strong {
  font-size: 1rem;
}

.link-list span {
  grid-column: 1;
  color: var(--c-text-3);
  font-size: 0.8125rem;
}

.link-list svg {
  grid-row: 1 / span 2;
  grid-column: 2;
  width: 18px;
  height: 18px;
  transition: transform 0.2s ease;
}

.link-list a:hover svg {
  transform: translateX(3px);
}

/* トップ: 募集バナー */
.cta-band {
  display: grid;
  gap: 24px;
  padding: clamp(28px, 5vw, 56px);
  border-radius: var(--radius-l);
  background:
    radial-gradient(circle at 100% 0%, rgba(47, 128, 192, 0.35), transparent 45%),
    radial-gradient(circle at 0% 100%, rgba(63, 157, 90, 0.22), transparent 40%),
    var(--c-navy);
  color: rgba(255, 255, 255, 0.86);
}

.cta-band h2 {
  color: #fff;
  font-size: clamp(1.375rem, 1.1rem + 1vw, 1.875rem);
}

.cta-band p {
  max-width: 40em;
  margin: 0.75rem 0 0;
}

.cta-band .eyebrow {
  color: #8fd8e2;
}

@media (min-width: 900px) {
  .cta-band {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
  }
}

/* トップ: アクセス */
.access-card {
  display: grid;
  gap: 24px;
}

@media (min-width: 900px) {
  .access-card {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: end;
  }
}

.address {
  font-style: normal;
  line-height: 1.9;
}

.address strong {
  display: block;
  color: var(--c-navy);
  font-size: 1.0625rem;
}

/* 7-2. ニュース ------------------------------------------------------------ */
.news-list {
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--c-line);
}

.news-item {
  position: relative;
  display: grid;
  grid-template-columns: clamp(96px, 24vw, 200px) minmax(0, 1fr);
  gap: clamp(14px, 2.5vw, 28px);
  padding-block: clamp(18px, 2.5vw, 26px);
  border-bottom: 1px solid var(--c-line);
  scroll-margin-top: calc(var(--header-h) + 24px);
}

.news-item__thumb {
  overflow: hidden;
  aspect-ratio: 4 / 3;
  border-radius: 10px;
  background: var(--c-bg-soft);
}

.news-item__thumb img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.news-item:hover .news-item__thumb img {
  transform: scale(1.04);
}

.news-item__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px 12px;
  margin-bottom: 6px;
}

.news-item__date {
  color: var(--c-text-3);
  font-size: 0.8125rem;
  font-variant-numeric: tabular-nums;
  letter-spacing: 0.05em;
}

.news-item__title {
  margin: 0;
  font-size: clamp(1rem, 0.96rem + 0.25vw, 1.125rem);
  line-height: 1.6;
}

.news-item__title a {
  color: var(--c-navy);
  text-decoration: none;
}

/* カード全体をクリック可能にする（本文中のリンクは z-index で前面に） */
.news-item__title a::after {
  content: "";
  position: absolute;
  inset: 0;
}

.news-item:hover .news-item__title a {
  color: var(--c-accent);
  text-decoration: underline;
}

.news-item__text {
  margin: 0.45rem 0 0;
  color: var(--c-text-2);
  font-size: 0.9375rem;
  line-height: 1.8;
  white-space: pre-line;
}

.news-item__links {
  position: relative;
  z-index: 1;
  display: flex;
  flex-wrap: wrap;
  gap: 6px 16px;
  margin-top: 0.6rem;
  font-size: 0.875rem;
  font-weight: 700;
}

.news-item.is-highlight {
  animation: highlight 2.4s ease;
}

@keyframes highlight {
  0%, 30% {
    background: var(--c-accent-soft);
  }
  100% {
    background: transparent;
  }
}

.news-list--compact .news-item {
  grid-template-columns: 76px minmax(0, 1fr);
  align-items: center;
  gap: 16px;
  padding-block: 14px;
}

.news-list--compact .news-item__thumb {
  aspect-ratio: 1;
}

.news-list--compact .news-item__title {
  font-size: 1rem;
}

.news-list--compact .news-item__text {
  display: -webkit-box;
  overflow: hidden;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 2;
  font-size: 0.875rem;
  white-space: normal;
}

@media (min-width: 768px) {
  .news-list--compact .news-item {
    grid-template-columns: 96px minmax(0, 1fr);
  }
}

/* 7-3. メンバー ------------------------------------------------------------ */
.member-section + .member-section {
  margin-top: clamp(48px, 7vw, 80px);
}

.member-section__head {
  display: flex;
  align-items: baseline;
  gap: 12px;
  margin-bottom: 20px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--c-line);
}

.member-section__head h2 {
  font-size: clamp(1.25rem, 1.1rem + 0.6vw, 1.625rem);
}

.member-section__head span {
  color: var(--c-text-3);
  font-size: 0.875rem;
}

.member-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(min(100%, 250px), 1fr));
  gap: clamp(16px, 2.2vw, 24px);
  margin: 0;
  padding: 0;
  list-style: none;
}

/* カードの子要素: __photo / __head / __info（研究・所属）/ __info--personal（好きなもの等）
   PC・タブレット: 写真が上の縦型。教員は横長（写真 | 研究・所属 | 好きなもの等）。
   スマホ: 写真を左に小さく置き、縦に長くなりすぎないようにする。 */
.member-card {
  display: flex;
  flex-direction: column;
  overflow: hidden;
  padding-bottom: 22px;
  border: 1px solid var(--c-line);
  border-radius: 16px;
  background: #fff;
  scroll-margin-top: calc(var(--header-h) + 24px);
}

.member-card__photo {
  aspect-ratio: 1;
  overflow: hidden;
  background: var(--c-bg-soft);
}

.member-card__photo img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: 50% 35%;
}

.member-card__head {
  padding: 18px 20px 0;
}

.member-card__name {
  margin: 8px 0 0;
  font-size: 1.1875rem;
  letter-spacing: 0.06em;
}

html[lang="en"] .member-card__name {
  letter-spacing: 0;
}

.member-card__name-sub {
  margin: 0;
  color: var(--c-text-3);
  font-size: 0.8125rem;
  letter-spacing: 0.03em;
}

.member-card__info {
  display: grid;
  align-content: start;
  gap: 10px;
  margin: 14px 20px 0;
  padding-top: 14px;
  border-top: 1px dashed var(--c-line-2);
  font-size: 0.8125rem;
  line-height: 1.7;
}

.member-card__info + .member-card__info {
  margin-top: 10px;
  padding-top: 0;
  border-top: 0;
}

.member-card__info dt {
  color: var(--c-accent);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.04em;
}

.member-card__info dd {
  margin: 1px 0 0;
  color: var(--c-text-2);
  overflow-wrap: anywhere;
}

.member-card__message dd {
  color: var(--c-text);
}

@media (min-width: 760px) {
  .member-grid--faculty {
    grid-template-columns: 1fr;
  }

  .member-card--faculty {
    display: grid;
    grid-template-columns: 240px minmax(0, 1fr) minmax(0, 1fr);
    grid-template-rows: auto 1fr;
    column-gap: 36px;
    padding: 0;
  }

  .member-card--faculty .member-card__photo {
    grid-row: 1 / -1;
    aspect-ratio: auto;
    min-height: 260px;
  }

  .member-card--faculty .member-card__head {
    grid-column: 2 / -1;
    padding: 26px 30px 0 0;
  }

  .member-card--faculty .member-card__info {
    grid-row: 2;
    grid-column: 2;
    margin: 16px 0 26px;
    padding-top: 16px;
    border-top: 1px dashed var(--c-line-2);
  }

  .member-card--faculty .member-card__info--personal {
    grid-column: 3;
    margin-right: 30px;
  }

  .member-card--faculty .member-card__name {
    font-size: 1.5rem;
  }
}

@media (max-width: 559px) {
  .member-grid {
    gap: 12px;
  }

  .member-card {
    display: grid;
    grid-template-columns: 96px minmax(0, 1fr);
    align-items: start;
    column-gap: 14px;
    padding: 14px;
    border-radius: 14px;
  }

  .member-card__photo {
    border-radius: 12px;
  }

  .member-card__head {
    padding: 0;
  }

  .member-card__name {
    margin-top: 4px;
    font-size: 1.0625rem;
  }

  .member-card__info {
    grid-column: 1 / -1;
    margin: 12px 0 0;
    padding-top: 12px;
  }

  .member-card__info + .member-card__info {
    margin-top: 8px;
  }
}

.jump-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0 0 clamp(28px, 4vw, 44px);
  padding: 0;
  list-style: none;
}

.jump-nav a {
  display: inline-flex;
  align-items: center;
  gap: 0.5em;
  min-height: 40px;
  padding: 0 16px;
  border: 1px solid var(--c-line-2);
  border-radius: 999px;
  color: var(--c-text-2);
  font-size: 0.875rem;
  font-weight: 500;
  text-decoration: none;
}

.jump-nav a:hover {
  border-color: var(--c-navy);
  color: var(--c-navy);
}

.jump-nav span {
  color: var(--c-text-3);
  font-size: 0.75rem;
}

/* 7-4. 業績 --------------------------------------------------------------- */
.pub-stats {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 36px;
  margin: 0 0 clamp(20px, 3vw, 28px);
  padding: 0;
  list-style: none;
}

.pub-stats li {
  display: flex;
  align-items: baseline;
  gap: 8px;
  color: var(--c-text-3);
  font-size: 0.875rem;
}

.pub-stats strong {
  font-family: var(--font-display);
  font-size: 1.75rem;
  font-weight: 600;
  color: var(--c-navy);
  line-height: 1;
}

.pub-year {
  display: flex;
  align-items: baseline;
  gap: 12px;
  margin: 36px 0 4px;
  font-size: 1.375rem;
}

.pub-year:first-child {
  margin-top: 0;
}

.pub-year small {
  color: var(--c-text-3);
  font-size: 0.8125rem;
  font-weight: 500;
}

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

.pub {
  padding: 20px 0;
  border-bottom: 1px solid var(--c-line);
}

.pub__title {
  margin: 0;
  color: var(--c-navy);
  font-size: 1.0625rem;
  line-height: 1.6;
}

html[lang="ja"] .pub__title {
  letter-spacing: 0;
}

.pub__authors {
  margin: 0.45rem 0 0;
  color: var(--c-text-2);
  font-size: 0.875rem;
  line-height: 1.7;
  letter-spacing: 0;
}

.lab-member-note,
.pub__authors .lab-member-author {
  color: var(--c-navy);
  font-weight: 500;
  text-decoration-color: var(--c-accent);
  text-decoration-thickness: 2px;
  text-underline-offset: 3px;
}

.pub__journal {
  margin: 0.3rem 0 0;
  color: var(--c-text-3);
  font-size: 0.875rem;
  letter-spacing: 0;
}

.pub__journal em {
  color: var(--c-text-2);
  font-weight: 500;
}

.pub__actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin-top: 0.7rem;
}

.pill-link {
  display: inline-flex;
  align-items: center;
  gap: 0.3em;
  padding: 2px 12px;
  border: 1px solid var(--c-line-2);
  border-radius: 999px;
  color: var(--c-accent);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  line-height: 1.8;
  text-decoration: none;
  overflow-wrap: anywhere;
}

.pill-link:hover {
  border-color: var(--c-accent);
  background: var(--c-accent-soft);
}

.abstract {
  width: 100%;
}

.abstract summary {
  display: inline-flex;
  align-items: center;
  gap: 0.35em;
  padding: 2px 12px;
  border-radius: 999px;
  background: var(--c-bg-soft);
  color: var(--c-text-2);
  font-size: 0.75rem;
  font-weight: 700;
  line-height: 1.8;
  cursor: pointer;
  list-style: none;
}

.abstract summary::-webkit-details-marker {
  display: none;
}

.abstract summary::before {
  content: "+";
  font-weight: 700;
}

.abstract[open] summary::before {
  content: "−";
}

.abstract p {
  margin: 0.75rem 0 0;
  padding: 14px 16px;
  border-radius: var(--radius-s);
  background: var(--c-bg-soft);
  color: var(--c-text-2);
  font-size: 0.875rem;
  line-height: 1.8;
  letter-spacing: 0;
}

.press-list {
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--c-line);
}

.press-list li {
  display: grid;
  grid-template-columns: 7.5em minmax(0, 1fr);
  gap: 4px 20px;
  padding: 14px 0;
  border-bottom: 1px solid var(--c-line);
}

.press-list time {
  color: var(--c-text-3);
  font-size: 0.8125rem;
  font-variant-numeric: tabular-nums;
  line-height: 1.9;
}

.press-list a {
  color: var(--c-navy);
  font-weight: 500;
  text-decoration: none;
}

.press-list a:hover {
  color: var(--c-accent);
  text-decoration: underline;
}

@media (max-width: 559px) {
  .press-list li {
    grid-template-columns: 1fr;
  }
}

.press-more {
  margin-top: 20px;
}

.pub__title a {
  color: inherit;
  text-decoration: none;
}

.pub__title a:hover {
  color: var(--c-accent);
  text-decoration: underline;
}

.block + .block {
  margin-top: clamp(48px, 7vw, 80px);
}

/* 7-5. 学会発表 ------------------------------------------------------------ */
.conf-list {
  display: grid;
  gap: 16px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.conf {
  display: grid;
  grid-template-columns: 84px minmax(0, 1fr);
  gap: 20px;
  padding: clamp(18px, 2.5vw, 26px);
  border: 1px solid var(--c-line);
  border-radius: 14px;
  background: #fff;
  scroll-margin-top: calc(var(--header-h) + 24px);
}

.conf.is-highlight {
  animation: highlight 2.4s ease;
}

.conf__date {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: flex-start;
  padding-top: 2px;
  color: var(--c-navy);
  font-family: var(--font-display);
  font-weight: 600;
  line-height: 1.1;
  text-align: center;
}

.conf__date-main {
  font-size: 1.5rem;
  letter-spacing: 0.02em;
}

.conf__date-sub {
  margin-top: 4px;
  color: var(--c-text-3);
  font-size: 0.8125rem;
}

.conf__title {
  margin: 0;
  font-size: 1.125rem;
  line-height: 1.55;
}

.conf__place {
  display: flex;
  gap: 6px;
  margin: 0.35rem 0 0;
  color: var(--c-text-3);
  font-size: 0.875rem;
  line-height: 1.6;
}

.conf__place svg {
  flex-shrink: 0;
  width: 16px;
  height: 16px;
  margin-top: 0.2em;
}

.conf__people {
  margin: 0.75rem 0 0;
  color: var(--c-text-2);
  font-size: 0.9375rem;
}

.conf__awards {
  display: grid;
  gap: 6px;
  margin: 0.75rem 0 0;
  padding: 0;
  list-style: none;
}

.conf__awards li {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px 10px;
  font-size: 0.9375rem;
}

.conf__section-title {
  margin: 1.1rem 0 0.4rem;
  color: var(--c-text-3);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.08em;
}

.conf__presentations {
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: 1px dashed var(--c-line-2);
}

.conf__presentations li {
  padding: 10px 0;
  border-bottom: 1px dashed var(--c-line-2);
  font-size: 0.875rem;
  line-height: 1.7;
}

.conf__presenter {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 4px 10px;
  color: var(--c-navy);
  font-weight: 700;
}

.conf__ptitle {
  display: block;
  margin-top: 2px;
  color: var(--c-text-2);
}

.conf__quote {
  margin: 0.9rem 0 0;
  padding: 12px 16px;
  border-left: 3px solid var(--c-accent);
  border-radius: 0 var(--radius-s) var(--radius-s) 0;
  background: var(--c-bg-soft);
  color: var(--c-text-2);
  font-size: 0.9rem;
  line-height: 1.8;
}

.conf__quote footer {
  margin-top: 4px;
  color: var(--c-text-3);
  font-size: 0.8125rem;
}

.conf__links {
  margin-top: 0.9rem;
  font-size: 0.875rem;
  font-weight: 700;
}

.thumbs {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 1rem;
}

.thumbs a {
  display: block;
  width: 150px;
  overflow: hidden;
  aspect-ratio: 4 / 3;
  border-radius: 10px;
  background: var(--c-bg-soft);
}

.thumbs img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

@media (max-width: 599px) {
  .conf {
    grid-template-columns: 1fr;
    gap: 6px;
  }

  .conf__date {
    flex-direction: row;
    align-items: baseline;
    gap: 8px;
  }

  .conf__date-main {
    font-size: 1.25rem;
  }

  .thumbs a {
    width: calc(50% - 4px);
  }
}

/* 7-6. 写真 ---------------------------------------------------------------- */
.event-list {
  display: grid;
  gap: clamp(40px, 6vw, 64px);
  margin: 0;
  padding: 0;
  list-style: none;
}

.event {
  scroll-margin-top: calc(var(--header-h) + 24px);
  border-radius: var(--radius);
}

.event.is-highlight {
  animation: highlight 2.4s ease;
}

.event__date {
  display: block;
  margin-bottom: 4px;
  color: var(--c-text-3);
  font-size: 0.8125rem;
  font-variant-numeric: tabular-nums;
  letter-spacing: 0.05em;
}

.event__title {
  margin: 0 0 0.6rem;
  font-size: clamp(1.125rem, 1rem + 0.5vw, 1.375rem);
}

.event__text {
  max-width: 46em;
  margin: 0 0 1.1rem;
  color: var(--c-text-2);
  white-space: pre-line;
}

.gallery {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}

@media (min-width: 600px) {
  .gallery {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 960px) {
  .gallery {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

.gallery--single {
  grid-template-columns: minmax(0, 560px);
}

.gallery__item {
  position: relative;
  display: block;
  overflow: hidden;
  aspect-ratio: 4 / 3;
  border-radius: 10px;
  background: var(--c-bg-soft);
}

.gallery__item img,
.gallery__item video {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.gallery__item video {
  background: #000;
  object-fit: contain;
}

a.gallery__item:hover img {
  transform: scale(1.04);
}

/* 7-7. 募集・お問い合わせ ------------------------------------------------ */
.contact-card h3 {
  margin-bottom: 0.75rem;
  font-size: 1.125rem;
}

.contact-card p {
  color: var(--c-text-2);
  font-size: 0.9375rem;
}

.mail-link {
  font-weight: 700;
  overflow-wrap: anywhere;
}

.map {
  overflow: hidden;
  aspect-ratio: 16 / 9;
  border: 1px solid var(--c-line);
  border-radius: var(--radius-l);
  background: var(--c-bg-soft);
}

.map iframe {
  display: block;
  width: 100%;
  height: 100%;
  border: 0;
}

@media (max-width: 599px) {
  .map {
    aspect-ratio: 4 / 3;
  }
}

.info-table {
  display: grid;
  grid-template-columns: max-content minmax(0, 1fr);
  gap: 8px 20px;
  margin: 0;
  font-size: 0.9375rem;
}

.info-table dt {
  color: var(--c-text-3);
  font-weight: 500;
}

.info-table dd {
  margin: 0;
}

/* 8. フッター -------------------------------------------------------------- */
.site-footer {
  padding-block: clamp(48px, 6vw, 72px) 28px;
  background: var(--c-navy);
  color: rgba(255, 255, 255, 0.76);
  font-size: 0.875rem;
  line-height: 1.85;
}

.site-footer a {
  color: #fff;
  text-decoration: none;
}

.site-footer a:hover {
  color: #fff;
  text-decoration: underline;
}

.footer__grid {
  display: grid;
  gap: 36px;
}

@media (min-width: 900px) {
  .footer__grid {
    grid-template-columns: minmax(0, 1.35fr) minmax(0, 1fr) minmax(0, 0.9fr);
    gap: 48px;
  }
}

.footer__name {
  margin: 0 0 4px;
  color: #fff;
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: 0.08em;
}

.footer__affil {
  margin: 0 0 16px;
  color: rgba(255, 255, 255, 0.6);
  font-size: 0.8125rem;
}

.footer__address {
  font-style: normal;
}

.footer__heading {
  margin: 0 0 12px;
  font-family: var(--font-display);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.18em;
  color: rgba(255, 255, 255, 0.5);
  text-transform: uppercase;
}

.footer__nav {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 4px 20px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.footer__links {
  display: grid;
  gap: 6px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.footer__links a {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.footer__links svg {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
}

.footer__bottom {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-top: 40px;
  padding-top: 20px;
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  color: rgba(255, 255, 255, 0.55);
  font-size: 0.8125rem;
}

.site-footer .lang-switch {
  border-color: rgba(255, 255, 255, 0.2);
  background: transparent;
}

.site-footer .lang-switch a {
  color: rgba(255, 255, 255, 0.7);
}

.site-footer .lang-switch a:hover {
  color: #fff;
  text-decoration: none;
}

.site-footer .lang-switch a[aria-current] {
  background: #fff;
  color: var(--c-navy);
}

/* 9. モーション・印刷 ------------------------------------------------------ */
/* JS が動くときだけ初期状態を隠す（JS が無くても本文は必ず見える） */
.js .reveal {
  opacity: 0;
  transform: translateY(14px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.js .reveal.is-visible {
  opacity: 1;
  transform: none;
}

@media (prefers-reduced-motion: no-preference) {
  html {
    scroll-behavior: smooth;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

  .js .reveal {
    opacity: 1;
    transform: none;
  }
}

@media print {
  .site-header,
  .site-footer,
  .subnav,
  .skip-link,
  .toc,
  .pagination,
  .filter {
    display: none !important;
  }

  .page-header {
    background: none;
  }

  a {
    color: inherit;
  }
}