:root {
  --ink: #252422;
  --secondary: #625f5c;
  --accent: #863c42;
  --line: #deddd9;
  --soft: #f5f4f1;
  --white: #fff;
  --rail: 244px;
  --gutter: clamp(32px, 5vw, 84px);
  --serif: "Yu Mincho", "Hiragino Mincho ProN", "Noto Serif CJK JP", serif;
  --sans: "Yu Gothic", "Hiragino Kaku Gothic ProN", Meiryo, sans-serif;
}
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 40px; }
body { margin: 0; color: var(--ink); background: var(--white); font: 500 18px/1.9 var(--sans); -webkit-font-smoothing: antialiased; }
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; }
a, button, summary { touch-action: manipulation; -webkit-tap-highlight-color: transparent; transition: color 180ms, background-color 180ms; }
button, summary { cursor: pointer; }
a:hover, summary:hover { color: var(--accent); }
a:focus-visible, button:focus-visible, summary:focus-visible { outline: 2px solid var(--accent); outline-offset: 5px; }
a:active, button:active { opacity: .7; }
h1, h2, h3, h4, p, figure { margin: 0; }
h1, h2, h3, h4 { font-weight: 500; }
h1, h2 { font-family: var(--serif); }
p { overflow-wrap: anywhere; }
img { max-width: 100%; display: block; }
[hidden] { display: none !important; }
.skipLink { position: fixed; z-index: 100; top: -100px; left: 24px; background: var(--white); padding: 12px 24px; }
.skipLink:focus { top: 12px; }
.siteHeader { position: fixed; inset: 0 auto 0 0; z-index: 30; width: var(--rail); border-right: 1px solid var(--line); padding: 42px 30px 28px; overflow-y: auto; display: flex; flex-direction: column; background: var(--white); }
.siteHeader, .siteHeader nav { scrollbar-width: none; -ms-overflow-style: none; }
.siteHeader::-webkit-scrollbar, .siteHeader nav::-webkit-scrollbar { display: none; width: 0; height: 0; }
.brand { display: block; }
.brandName { display: block; font: 500 28px/1.6 var(--serif); letter-spacing: .12em; white-space: nowrap; }
.brandName small { display: block; margin-top: 8px; font: 14px/1.8 var(--sans); letter-spacing: .12em; }
.siteHeader nav { display: flex; flex-direction: column; gap: 4px; margin-top: 36px; }
.siteHeader nav a { min-height: 48px; display: flex; align-items: center; justify-content: space-between; padding: 8px 0; font-size: 17px; letter-spacing: .04em; }
.siteHeader nav a::after { content: ""; width: 4px; height: 4px; background: transparent; border-radius: 50%; }
.siteHeader nav a[aria-current] { color: var(--accent); }
.siteHeader nav a[aria-current]::after { background: var(--accent); }
.siteHeader nav .navContact { margin-top: 16px; padding-top: 17px; border-top: 1px solid var(--line); }
.railNote { margin-top: auto; padding-top: 32px; display: flex; flex-direction: column; color: var(--secondary); font-size: 14px; line-height: 2; letter-spacing: .03em; }
.railNote a { font-size: 14px; padding: 10px 0; margin-top: 12px; }
.menuToggle { display: none; }
main, .siteFooter { margin-left: var(--rail); }
main { max-width: 1600px; }
.textLink { display: inline-flex; align-items: center; justify-content: space-between; gap: 30px; min-height: 44px; font-size: 16px; border-bottom: 1px solid var(--ink); padding: 7px 0; }
.textLink span { font: 17px/1 var(--sans); }
.section { padding: 85px var(--gutter); }
.sectionLabel { font-size: 14px; color: var(--accent); letter-spacing: .13em; margin-bottom: 12px; }
h2 { font-size: clamp(26px, 2.5vw, 36px); line-height: 1.6; letter-spacing: .07em; }
.sectionHeading { display: flex; justify-content: space-between; align-items: flex-end; gap: 28px; margin-bottom: 38px; }
.sectionHeading > p { font-size: 17px; color: var(--secondary); line-height: 2; max-width: 325px; }
.about { position: relative; display: grid; grid-template-columns: 160px minmax(0, 1fr); column-gap: 24px; }
.about > .sectionLabel { padding-top: 13px; }
.aboutContent { max-width: 730px; }
.aboutContent h2 { font-size: 28px; margin-bottom: 26px; }
.aboutContent p { font-size: 18px; line-height: 2; margin-bottom: 20px; }
.aboutContent p:first-of-type { font-size: 20px; color: var(--ink); }
.aboutContent .textLink { margin-top: 10px; }
.researchSection { margin: 0 var(--gutter); background: var(--soft); }
.researchInner { padding: 48px 40px; }
.researchInner .sectionHeading { align-items: flex-start; }
.researchGrid { border-top: 1px solid #ccc9c3; }
.researchCard { display: grid; grid-template-columns: 210px minmax(0, 1fr); gap: 30px; padding: 27px 0; border-bottom: 1px solid #d8d5d0; }
.researchCard h3 { font: 500 23px/1.8 var(--serif); }
.researchCard h3 br { display: none; }
.researchCard p { font-size: 18px; color: var(--secondary); line-height: 2; }
.researchDetails { margin-top: 12px; }
.researchDetails details { border-bottom: 1px solid #d8d5d0; }
summary { min-height: 58px; display: flex; align-items: center; justify-content: space-between; gap: 18px; list-style: none; font-size: 17px; }
summary::-webkit-details-marker { display: none; }
.plus { display: block; position: relative; width: 16px; height: 16px; flex: 0 0 16px; }
.plus::before, .plus::after { content: ""; position: absolute; width: 12px; height: 1px; left: 2px; top: 7px; background: currentColor; }
.plus::after { transform: rotate(90deg); transition: transform 180ms; }
details[open] > summary .plus::after { transform: rotate(0); }
details p { font-size: 17px; color: var(--secondary); padding: 2px 28px 22px 0; line-height: 2; }
.future { margin-top: 32px; display: grid; grid-template-columns: 140px minmax(0, 1fr); gap: 20px; }
.futureLabel { font-size: 14px; color: var(--accent); padding-top: 7px; letter-spacing: .04em; }
.future h3 { font: 500 24px/1.7 var(--serif); margin-bottom: 12px; }
.future p { font-size: 18px; color: var(--secondary); line-height: 2; }
.teaching { display: grid; grid-template-columns: 1fr 1.25fr; gap: 50px; }
.teaching h2 { font-size: 28px; }
.teachingContent { padding-top: 8px; }
.teachingContent > p { font-size: 18px; color: var(--secondary); line-height: 2; }
.teachingContent > .muted { margin-top: 24px; font-size: 15px; }
.courseList { list-style: none; padding: 0; margin: 14px 0 0; display: grid; grid-template-columns: 1fr 1fr; gap: 0 24px; }
.courseList li { padding: 12px 0; border-top: 1px solid var(--line); font-size: 18px; }
.publicationSection { border-block: 1px solid var(--line); }
.publicationTabs { display: flex; gap: 28px; border-bottom: 1px solid var(--line); margin-bottom: 12px; }
.publicationTabs button { min-height: 54px; border: 0; border-bottom: 2px solid transparent; background: transparent; padding: 12px 0; font-size: 17px; color: var(--secondary); }
.publicationTabs button[aria-selected="true"] { color: var(--accent); border-bottom-color: var(--accent); }
.publicationTabs button:hover { color: var(--accent); }
.bookItem { display: grid; grid-template-columns: 120px minmax(0, 1fr); gap: 30px; padding: 30px 0; border-bottom: 1px solid var(--line); }
.bookYear { padding-top: 2px; }
.bookYear > span { font: 32px/1.4 var(--serif); letter-spacing: .02em; }
.bookYear small { display: block; font-size: 14px; color: var(--secondary); margin-top: 7px; }
.bookInfo > span { font-size: 14px; color: var(--secondary); }
.bookInfo h3 { font: 500 23px/1.7 var(--serif); margin: 7px 0 10px; }
.bookInfo p { font-size: 18px; color: var(--secondary); line-height: 2; max-width: 620px; }
.paperList { padding: 0; list-style: none; margin: 0; }
.paperList li { display: grid; grid-template-columns: 65px minmax(0, 1fr); gap: 25px; padding: 24px 0; border-bottom: 1px solid var(--line); }
.paperList time { font: 19px/1.8 var(--serif); color: var(--accent); }
.paperList h3 { font: 500 22px/1.8 var(--serif); margin-bottom: 8px; }
.paperList p, .translationNote { font-size: 16px; line-height: 2; color: var(--secondary); }
.translationNote { margin-top: 22px; }
.otherPapers { margin-top: 20px; border-top: 1px solid var(--line); }
.otherPapers ul { padding: 0 0 12px; list-style: none; color: var(--secondary); font-size: 17px; line-height: 2.5; }
.career { display: grid; grid-template-columns: 190px minmax(0, 1fr); gap: 40px; }
.careerIntro { align-self: start; position: sticky; top: 45px; }
.careerIntro > p { font-size: 16px; color: var(--secondary); margin: 20px 0; line-height: 2; }
.timeline { border-top: 1px solid var(--ink); }
.timelineItem { padding: 24px 0; border-bottom: 1px solid var(--line); }
.timelineItem time { font-size: 15px; letter-spacing: .08em; color: var(--secondary); }
.timelineItem h3 { font: 500 23px/1.8 var(--serif); margin: 8px 0; }
.timelineItem p { font-size: 18px; color: var(--secondary); line-height: 2; }
.timelineItem.current time { color: var(--accent); }
.serviceSection { background: var(--soft); }
.serviceSection .sectionHeading { display: block; }
.serviceSection .sectionHeading > p { margin-top: 18px; max-width: none; }
.serviceGrid { display: grid; grid-template-columns: 1.1fr 1fr; gap: 48px; }
.subHeading { font: 500 23px/1.8 var(--serif); padding-bottom: 17px; border-bottom: 1px solid #ccc9c3; }
.serviceList { margin: 0; }
.serviceList > div { padding: 17px 0; border-bottom: 1px solid #d8d5d0; }
.serviceList dt { font-size: 14px; color: var(--secondary); margin-bottom: 5px; }
.serviceList dd { margin: 0; font-size: 18px; line-height: 1.9; }
.historicalNote { font-size: 15px; color: var(--secondary); margin-top: 18px; line-height: 2; }
.exchange article { padding: 17px 0; border-bottom: 1px solid #d8d5d0; }
.exchange article > span { font-size: 14px; color: var(--secondary); }
.exchange h4 { font-size: 17px; line-height: 1.9; margin: 5px 0 7px; font-weight: 600; }
.exchange article p { font-size: 16px; color: var(--secondary); line-height: 2; }
.mediaDetails { margin-top: 14px; }
.mediaDetails summary { font-size: 16px; }
.marketHeading { display: flex; align-items: flex-end; justify-content: space-between; gap: 30px; margin-bottom: 35px; }
.marketHeading > p { font-size: 16px; color: var(--secondary); }
.marketTopics { display: grid; grid-template-columns: 1fr 1fr; gap: 28px 40px; }
.marketTopics article { border-top: 1px solid var(--line); padding-top: 20px; }
.marketTopics h3 { font: 500 23px/1.8 var(--serif); margin-bottom: 10px; }
.marketTopics p { font-size: 18px; color: var(--secondary); line-height: 2; }
.contactSection { margin: 0 var(--gutter); border-top: 2px solid var(--ink); }
.contactInner { padding: 42px 0 50px; display: grid; grid-template-columns: 1fr 1fr; gap: 40px; }
.contactInner h2 { font-size: 26px; }
.contactInfo { padding-top: 6px; }
.contactInfo > p { font-size: 16px; color: var(--secondary); line-height: 2; }
.contactInfo .contactStatus { font-size: 18px; color: var(--ink); margin: 15px 0 7px; }
.contactInfo .contactSmall { font-size: 15px; }
.siteFooter { background: var(--soft); padding: 32px var(--gutter) 24px; }
.footerTop { display: flex; justify-content: space-between; align-items: center; gap: 24px; margin-bottom: 24px; }
.footerTop .brandName { font-size: 21px; }
.footerTop .brandName small { font-size: 14px; margin-top: 4px; }
.backTop { display: flex; align-items: center; gap: 16px; min-height: 44px; font-size: 15px; }
.backTop span { font-size: 18px; }
.siteNotice { border-block: 1px solid var(--line); }
.siteNotice summary { min-height: 56px; font-size: 15px; }
.siteNotice p { font-size: 15px; padding-bottom: 16px; line-height: 2; }
.footerBottom { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 20px; padding-top: 20px; font-size: 14px; color: var(--secondary); letter-spacing: .03em; }
@media (min-width: 1800px) {
  :root { --gutter: 100px; }
}
@media (max-width: 1250px) {
  :root { --rail: 220px; --gutter: 40px; }
  .siteHeader { padding: 40px 26px 20px; }
  .brandName { font-size: 25px; }
  .about { grid-template-columns: 130px minmax(0, 1fr); }
  .researchCard { grid-template-columns: 180px minmax(0, 1fr); gap: 24px; }
  .researchInner { padding-inline: 30px; }
  .sectionHeading { display: block; }
  .sectionHeading > p { margin-top: 16px; max-width: none; }
  .sectionHeading > p br { display: none; }
  .career { grid-template-columns: 160px minmax(0, 1fr); gap: 30px; }
  .serviceGrid { gap: 30px; }
  .teaching { gap: 35px; }
  .teaching h2 { font-size: 25px; }
}
@media (max-width: 1024px) {
  :root { --gutter: 48px; }
  html { scroll-padding-top: 110px; }
  .siteHeader { position: sticky; inset: 0 0 auto; width: 100%; height: 88px; padding: 0 var(--gutter); border-right: 0; border-bottom: 1px solid var(--line); flex-direction: row; align-items: center; justify-content: space-between; }
  .siteHeader .brand::before, .railNote { display: none; }
  .brandName { font-size: 24px; line-height: 1.3; }
  .brandName small { font-size: 14px; margin-top: 5px; }
  .menuToggle { display: flex; align-items: center; gap: 17px; background: none; border: 0; padding: 10px 0 10px 15px; min-height: 44px; }
  .menuLabel { font-size: 16px; }
  .menuLines { height: 8px; width: 22px; border-block: 1px solid var(--ink); }
  .menuToggle[aria-expanded="true"] .menuLines { transform: rotate(-45deg); height: 1px; border-bottom: 0; }
  .siteHeader { overflow: visible; }
  .siteHeader nav { display: none; position: absolute; top: 87px; left: 0; right: 0; margin: 0; padding: 18px var(--gutter) 26px; background: var(--white); border-bottom: 1px solid var(--line); grid-template-columns: 1fr 1fr; gap: 0 30px; }
  .siteHeader nav.isOpen { display: grid; max-height: calc(100dvh - 88px); overflow-y: auto; }
  .siteHeader nav a { border-bottom: 1px solid var(--line); min-height: 50px; font-size: 18px; }
  .siteHeader nav .navContact { margin: 0; padding: 6px 0; border-top: 0; }
  main, .siteFooter { margin-left: 0; }
  .about { grid-template-columns: 160px minmax(0, 1fr); }
  .career { grid-template-columns: 190px minmax(0, 1fr); }
  .careerIntro { top: 118px; }
}
@media (max-width: 700px) {
  :root { --gutter: 24px; }
  body { font-size: 18px; }
  .siteHeader { height: 78px; }
  .siteHeader nav { top: 77px; }
  .textLink { font-size: 15px; gap: 22px; }
  .section { padding: 54px var(--gutter); }
  h2, .aboutContent h2 { font-size: 27px; letter-spacing: .04em; }
  .sectionLabel { font-size: 14px; margin-bottom: 10px; }
  .about { display: block; }
  .about > .sectionLabel { padding: 0; }
  .aboutContent h2 { margin-bottom: 22px; }
  .aboutContent p { font-size: 18px; line-height: 2; }
  .aboutContent p:first-of-type { font-size: 20px; }
  .researchSection { margin: 0; }
  .researchInner { padding: 46px var(--gutter); }
  .sectionHeading { margin-bottom: 28px; }
  .sectionHeading > p { font-size: 17px; }
  .researchCard { display: block; padding: 24px 0; }
  .researchCard h3 { font-size: 21px; margin-bottom: 12px; }
  .researchCard p { font-size: 18px; line-height: 2; }
  .researchDetails summary { font-size: 18px; min-height: 62px; }
  details p { font-size: 18px; }
  .future { display: block; margin-top: 28px; }
  .futureLabel { display: block; font-size: 15px; margin-bottom: 10px; padding-top: 0; }
  .future h3 { font-size: 22px; }
  .future p { font-size: 18px; }
  .teaching { display: block; }
  .teaching h2 { font-size: 27px; }
  .teachingContent { padding-top: 24px; }
  .teachingContent > p { font-size: 18px; }
  .teachingContent > .muted { font-size: 16px; }
  .courseList { gap: 0 20px; }
  .courseList li { font-size: 18px; }
  .publicationTabs { gap: 25px; }
  .publicationTabs button { font-size: 18px; min-height: 58px; }
  .bookItem { grid-template-columns: 76px minmax(0, 1fr); gap: 18px; padding: 25px 0; }
  .bookYear > span { font-size: 24px; }
  .bookYear small { font-size: 14px; }
  .bookInfo > span { font-size: 14px; }
  .bookInfo h3 { font-size: 21px; line-height: 1.7; margin: 8px 0 12px; }
  .bookInfo p { font-size: 18px; }
  .paperList li { grid-template-columns: 52px minmax(0, 1fr); gap: 18px; }
  .paperList time { font-size: 18px; }
  .paperList h3 { font-size: 19px; }
  .paperList p { font-size: 18px; }
  .otherPapers ul { font-size: 18px; line-height: 2; }
  .otherPapers li { padding-bottom: 12px; }
  .career { display: block; }
  .careerIntro { position: static; }
  .careerIntro > p { font-size: 18px; margin-block: 16px; }
  .careerIntro > .textLink { margin-bottom: 30px; }
  .timelineItem { padding: 23px 0; }
  .timelineItem time { font-size: 16px; }
  .timelineItem h3 { font-size: 21px; }
  .timelineItem p { font-size: 18px; }
  .serviceGrid { grid-template-columns: 1fr; gap: 36px; }
  .subHeading { font-size: 21px; }
  .serviceList > div { display: grid; grid-template-columns: 100px minmax(0, 1fr); gap: 14px; }
  .serviceList dt { font-size: 14px; padding-top: 3px; }
  .serviceList dd { font-size: 18px; }
  .exchange h4 { font-size: 18px; }
  .exchange article p { font-size: 18px; }
  .exchange article > span { font-size: 15px; }
  .mediaDetails summary { font-size: 18px; }
  .marketHeading { display: block; }
  .marketHeading > p { font-size: 18px; margin-top: 16px; }
  .marketTopics { grid-template-columns: 1fr; gap: 24px; }
  .marketTopics h3 { font-size: 21px; }
  .marketTopics p { font-size: 18px; }
  .contactInner { display: block; padding-top: 35px; padding-bottom: 40px; }
  .contactInfo { padding-top: 24px; }
  .contactInfo > p { font-size: 18px; }
  .contactInfo .contactStatus { font-size: 18px; }
  .contactInfo .contactSmall { font-size: 16px; }
  .siteFooter { padding: 30px var(--gutter) 24px; }
  .footerTop .brandName { font-size: 20px; }
  .backTop { font-size: 14px; gap: 10px; }
  .siteNotice summary { font-size: 16px; }
  .siteNotice p { font-size: 16px; }
  .footerBottom { display: block; font-size: 14px; }
  .footerBottom > span { display: block; margin-bottom: 5px; }
}
@media (max-height: 760px) and (min-width: 1025px) {
  .siteHeader { padding-top: 30px; }
  .siteHeader nav { margin-top: 25px; gap: 0; }
  .railNote { padding-top: 15px; }
}
@media (max-height: 620px) and (min-width: 1025px) {
  .siteHeader { overflow-y: auto; }
  .railNote { margin-top: 25px; }
}

.hero { padding: 30px var(--gutter) 0; }
.heroTop { display: flex; flex-wrap: wrap; justify-content: space-between; align-items: center; gap: 10px 24px; padding-bottom: 22px; font-size: 16px; }
.heroTop > p { color: var(--accent); font-weight: 500; letter-spacing: .06em; }
.heroTop > span { color: var(--secondary); font-size: 14px; }
.heroBody { position: relative; isolation: isolate; overflow: hidden; display: grid; grid-template-columns: minmax(0, 1fr); grid-template-rows: auto 1fr; gap: 24px; min-height: 520px; padding: 48px 44px 44px 49%; background: var(--soft); align-items: start; }
.portrait { position: absolute; inset: 0 auto 0 0; z-index: 0; width: 50%; height: 100%; margin: 0; pointer-events: none; }
.portrait::after { content: ""; position: absolute; inset: 0; background: linear-gradient(90deg, transparent 68%, rgb(245 244 241 / 10%) 76%, rgb(245 244 241 / 78%) 88%, var(--soft) 98%); }
.portrait img { width: 100%; height: 100%; object-fit: cover; object-position: center 36%; }
.portrait figcaption { display: none; }
.heroIdentity { position: relative; z-index: 1; min-width: 0; }
.heroPosition { font-size: 17px; font-weight: 500; color: var(--accent); letter-spacing: .03em; }
h1 { font-size: clamp(42px, 4.2vw, 60px); line-height: 1.4; font-weight: 600; letter-spacing: .06em; margin: 11px 0 14px; }
.heroDegree { font-size: 16px; line-height: 1.8; color: var(--secondary); }
.heroSummary { position: relative; z-index: 1; min-width: 0; }
.heroLead { font-size: clamp(18px, 1.65vw, 24px); font-weight: 500; line-height: 1.85; letter-spacing: .01em; }
.heroKeywords { display: flex; flex-wrap: wrap; gap: 10px 18px; margin: 20px 0 24px; font-size: 15px; color: var(--secondary); }
.heroKeywords span + span { border-left: 1px solid #c9c5bf; padding-left: 18px; }
.profileLink { display: inline-flex; align-items: center; justify-content: space-between; gap: 28px; min-height: 50px; padding: 11px 20px; background: var(--ink); color: var(--white); font-size: 16px; }
.profileLink:hover { background: var(--accent); color: var(--white); }
.profileLink:focus-visible { outline: 2px solid var(--accent); outline-offset: 5px; }
.heroBottom { display: grid; grid-template-columns: 170px minmax(0, 1fr); gap: 25px; padding: 28px 0; border-bottom: 1px solid var(--line); }
.heroBottom > span { font-size: 15px; color: var(--accent); padding-top: 4px; }
.heroBottom p { font-size: 17px; color: var(--secondary); line-height: 1.9; }
@media (min-width: 1600px) {
  .heroBody { gap: 26px; min-height: 550px; padding: 52px 60px 52px 49%; }
}
@media (max-width: 1250px) {
  .heroBody { padding: 36px 28px 36px 47%; gap: 20px; min-height: 540px; }
  .portrait { width: 49%; }
  h1 { font-size: 48px; }
  .heroLead { font-size: 20px; }
  .heroLead br { display: none; }
  .heroBottom { grid-template-columns: 1fr; gap: 12px; }
  .heroBottom p br { display: none; }
  .serviceGrid { grid-template-columns: 1fr; gap: 40px; }
}
@media (max-width: 1024px) {
  .heroBody { gap: 22px; padding: 36px 32px 36px 47%; min-height: 520px; }
  .heroPosition { font-size: 17px; }
  .siteHeader nav.isOpen { max-height: calc(100dvh - 88px); }
}
@media (max-width: 700px) {
  .hero { padding-top: 20px; }
  .heroTop { font-size: 15px; padding-bottom: 18px; }
  .heroTop > span { display: none; }
  .heroBody { grid-template-columns: minmax(0, 1fr); grid-template-rows: auto auto; gap: 24px; min-height: 0; padding: 285px 24px 30px; margin-inline: -8px; }
  .portrait { inset: 0 0 auto; width: 100%; height: 310px; }
  .portrait::after { background: linear-gradient(180deg, transparent 66%, rgb(245 244 241 / 12%) 76%, rgb(245 244 241 / 85%) 92%, var(--soft) 100%); }
  .portrait img { width: 100%; height: 100%; object-position: center 32%; }
  .portrait figcaption { display: none; }
  .heroIdentity { align-self: center; }
  .heroPosition { font-size: 16px; line-height: 1.7; }
  h1 { font-size: clamp(38px, 9vw, 46px); line-height: 1.4; letter-spacing: .02em; margin: 8px 0 10px; }
  .heroDegree { font-size: 16px; line-height: 1.8; }
  .heroSummary { grid-column: 1; }
  .heroLead { font-size: 20px; line-height: 1.9; }
  .heroKeywords { font-size: 15px; gap: 8px 12px; margin: 18px 0 22px; }
  .heroKeywords span + span { padding-left: 12px; }
  .profileLink { width: 100%; font-size: 16px; min-height: 52px; }
  .heroBottom { gap: 10px; padding: 24px 0; }
  .heroBottom > span { font-size: 15px; }
  .heroBottom p { font-size: 17px; }
  .siteHeader nav.isOpen { max-height: calc(100dvh - 78px); }
  .footerTop { align-items: flex-start; flex-wrap: wrap; }
  .footerTop .brandName { font-size: 22px; }
  .footerTop .brandName small { font-size: 13px; white-space: normal; }
}

.researchTopic { min-width: 0; }
.researchTopic > img { margin: -8px 0 10px; width: 96px; height: 72px; }
.materialNote { font-size: 14px; color: var(--secondary); line-height: 1.9; margin-top: 18px; }
@media (max-width: 700px) {
  .researchTopic { display: grid; grid-template-columns: 64px minmax(0, 1fr); gap: 18px; align-items: center; margin-bottom: 14px; }
  .researchTopic > img { width: 64px; height: 48px; margin: 0; }
  .researchTopic h3 { margin: 0; }
  .materialNote { font-size: 14px; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation: none !important; transition: none !important; }
}