.research-page .eyebrow {
  color: #75528b;
}
.research-page h2 em,
.research-page h1 em {
  color: #75528b;
}
.research-intro {
  padding-top: 44px;
  padding-bottom: 55px;
}
.research-back {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  font-size: 12px;
  margin-bottom: 40px;
  color: var(--muted);
}
.research-intro h1 {
  font-size: 68px;
  margin-top: 20px;
  max-width: 900px;
}
.research-deck {
  font-size: 19px;
  max-width: 780px;
  margin-top: 24px;
}
.research-scope {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
  margin-top: 40px;
  padding-top: 27px;
  border-top: 1px solid var(--line);
}
.research-domains {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 48px;
  margin-top: 38px;
  max-width: 950px;
}
.research-domains .research-notes {
  margin-top: 12px;
}
.research-domains > div:last-child > .eyebrow {
  color: var(--teal);
}
.research-scope strong {
  display: block;
  font: 28px/1.2 var(--serif);
  color: var(--teal);
}
.research-scope span {
  display: block;
  font-size: 12px;
  margin-top: 6px;
  color: var(--muted);
}
.scope-note {
  font-size: 11px;
  margin-top: 22px;
  max-width: 850px;
}
.scope-note a,
.paper-figure a,
.figure-sources p a {
  text-decoration: underline;
  text-underline-offset: 3px;
}
.research-chapter {
  border-top: 1px solid var(--line);
}
.geometry-chapter,
.vibration-chapter {
  background: #f5f3f8;
}
.chapter-heading {
  max-width: 850px;
  margin-bottom: 37px;
}
.chapter-heading h2 {
  margin-top: 16px;
  font-size: 43px;
}
.chapter-heading > p:last-child:not(.eyebrow) {
  margin-top: 23px;
  font-size: 15px;
  max-width: 690px;
}
.paper-figure {
  min-width: 0;
}
.paper-figure .photo-button {
  background: #fff;
  padding: 24px;
}
.paper-figure img {
  width: 100%;
  height: auto;
  object-fit: contain;
}
.geometry-figure {
  max-width: 950px;
  margin: auto;
}
.geometry-figure img {
  max-height: 530px;
}
.paper-figure figcaption {
  margin-top: 15px;
  color: var(--muted);
  font-size: 12px;
  line-height: 1.6;
}
.paper-figure figcaption strong {
  display: block;
  font-size: 13px;
  font-weight: 500;
  color: var(--ink);
  margin-bottom: 5px;
}
.research-detail-grid {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 65px;
  align-items: center;
}
.research-explanation h3 {
  font-size: 31px;
  margin-bottom: 23px;
}
.research-explanation h2 {
  font-size: 40px;
  margin: 18px 0 26px;
}
.research-explanation p {
  font-size: 14px;
  margin-top: 18px;
}
.research-explanation p.research-qualification {
  font-size: 11px;
  border-left: 2px solid #ab92bb;
  padding-left: 14px;
}
.modes-figure {
  max-width: 1100px;
  margin: auto;
}
.validation-note {
  display: flex;
  gap: 18px;
  margin-top: 35px;
  padding-top: 24px;
  border-top: 1px solid #d9d1e1;
}
.validation-note svg {
  color: #75528b;
  margin-top: 3px;
}
.validation-note p {
  font-size: 13px;
  max-width: 900px;
}
.validation-note strong {
  color: var(--ink);
  display: block;
  margin-bottom: 7px;
}
.stress-figure img {
  max-height: 570px;
}
.research-takeaways {
  background: #edf5f1;
}
.research-takeaways h2 {
  font-size: 43px;
  margin: 18px 0 36px;
}
.research-takeaways > div {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 38px;
}
.research-takeaways p {
  font-size: 14px;
}
.research-takeaways strong {
  display: block;
  margin-bottom: 10px;
  color: var(--teal);
  font-size: 17px;
}
.research-bibliography h2 {
  margin-top: 15px;
}
.research-bibliography ol {
  list-style: none;
  padding: 0;
  margin: 38px 0 0;
}
.research-bibliography li {
  display: grid;
  grid-template-columns: 70px 1fr;
  gap: 28px;
  border-top: 1px solid var(--line);
  padding: 27px 0;
}
.publication-year {
  color: var(--coral);
  font-size: 13px;
  padding-top: 4px;
}
.research-bibliography h3 {
  font: 500 20px/1.45 var(--sans);
}
.research-bibliography h3 a {
  display: flex;
  justify-content: space-between;
  align-items: start;
  gap: 24px;
}
.research-bibliography h3 a:hover {
  color: var(--teal);
}
.research-bibliography h3 svg {
  margin-top: 5px;
}
.research-bibliography li p {
  font-size: 13px;
  margin-top: 10px;
}
.research-bibliography small {
  display: block;
  font-size: 12px;
  color: var(--muted);
  margin-top: 6px;
}
.earlier-research {
  font-size: 12px;
  margin-top: 25px;
  max-width: 740px;
}
.figure-sources {
  padding-top: 45px;
  padding-bottom: 50px;
  border-top: 1px solid var(--line);
  background: #f4f7f5;
}
.figure-sources h2 {
  font-size: 28px;
}
.figure-sources p {
  max-width: 950px;
  font-size: 12px;
  margin-top: 17px;
}
.figure-sources .text-link {
  margin-top: 25px;
}
.research-page footer > a:last-child {
  font-size: 12px;
}
@media (max-width: 900px) {
  .research-domains {
    grid-template-columns: 1fr;
    gap: 24px;
  }
  .research-intro h1 {
    font-size: 45px;
  }
  .research-deck {
    font-size: 17px;
  }
  .research-scope {
    gap: 15px;
  }
  .research-scope strong {
    font-size: 24px;
  }
  .research-scope span {
    font-size: 10px;
  }
  .chapter-heading h2,
  .research-explanation h2,
  .research-takeaways h2 {
    font-size: 34px;
  }
  .research-detail-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  .paper-figure .photo-button {
    padding: 12px;
  }
  .paper-figure figcaption {
    font-size: 11px;
  }
  .research-explanation h3 {
    font-size: 28px;
  }
  .research-takeaways > div {
    grid-template-columns: 1fr;
    gap: 24px;
  }
  .research-bibliography li {
    grid-template-columns: 42px 1fr;
    gap: 15px;
  }
  .research-bibliography h3 {
    font-size: 16px;
  }
  .research-bibliography h3 a {
    gap: 12px;
  }
}
@media (max-width: 360px) {
  .research-intro h1 {
    font-size: 38px;
  }
  .research-scope {
    grid-template-columns: 1fr;
    gap: 19px;
  }
  .research-scope strong {
    font-size: 24px;
  }
  .research-scope span {
    font-size: 12px;
  }
  .chapter-heading h2,
  .research-explanation h2,
  .research-takeaways h2 {
    font-size: 29px;
  }
}