.research-page {
  --research-grid: rgba(237, 231, 224, .72);
}

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

.research-fold {
  display: grid;
  grid-template-rows: minmax(290px, .9fr) minmax(330px, 1.1fr);
  min-height: calc(100svh - 76px);
  max-height: 900px;
}

.research-intro { min-height: 0; }

.research-intro__grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  align-items: center;
  height: 100%;
  padding-block: 46px;
}

.research-intro__title { align-self: center; }

.research-intro h1 {
  margin: 22px 0 0;
  font-size: clamp(64px, 6vw, 88px);
  font-weight: 600;
  line-height: 1;
  letter-spacing: -.035em;
}

.research-intro__statement {
  align-self: center;
  padding-left: 7%;
}

.research-intro__statement > p {
  max-width: 31em;
  margin: 0;
  color: var(--zone-text);
  font-size: clamp(21px, 1.7vw, 27px);
  font-weight: 400;
  line-height: 1.7;
}

.research-intro__statement nav {
  display: flex;
  flex-wrap: wrap;
  gap: 5px 20px;
  margin-top: 20px;
  color: var(--zone-muted);
  font-size: 13px;
  line-height: 1.7;
}

.research-intro__statement nav strong { color: var(--zone-text); font-weight: 500; }

.research-intro__statement nav a {
  text-decoration: underline;
  text-underline-offset: 4px;
  text-decoration-color: var(--zone-line);
}

.research-intro__statement nav a:hover,
.research-intro__statement nav a:focus-visible { color: var(--zone-orange); text-decoration-color: var(--zone-orange); }

.research-themes {
  min-height: 0;
  border-top: 1px solid var(--zone-line);
}

.research-theme-list {
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  align-items: start;
  gap: 42px;
  height: 100%;
  padding-block: clamp(54px, 6.5vh, 78px) 48px;
}

.research-theme-list article { min-width: 0; scroll-margin-top: 92px; }

.research-theme-list h3 {
  margin: 0 0 14px;
  font-size: 20px;
  font-weight: 600;
  line-height: 1.35;
}

.research-theme-list p {
  margin: 0;
  color: var(--zone-body);
  font-size: 14px;
  line-height: 1.75;
}

.research-featured,
.research-publications { padding: 120px 0; }

.research-featured {
  border-block: 1px solid var(--zone-line);
  background: var(--zone-surface);
}

.research-section-head {
  display: grid;
  grid-template-columns: minmax(0, 7fr) minmax(260px, 3fr);
  gap: 80px;
  align-items: end;
  margin-bottom: 64px;
}

.research-section-head .zone-kicker { grid-column: 1 / -1; }

.research-section-head h2,
.research-publications__title h2,
.research-next h2 {
  margin: 0;
  font-size: clamp(36px, 3vw, 44px);
  font-weight: 600;
  line-height: 1.24;
  letter-spacing: -.015em;
}

.research-section-head > p,
.research-section-head--inline > p {
  max-width: 32em;
  margin: 0;
  color: var(--zone-muted);
  font-size: 14px;
  line-height: 1.8;
}

.research-section-head--inline {
  grid-template-columns: minmax(0, 7fr) minmax(280px, 4fr);
}

.research-section-head--inline > div .zone-kicker { margin-bottom: 24px; }

.research-feature-grid {
  display: grid;
  grid-template-columns: minmax(0, 8fr) minmax(300px, 4fr);
  gap: 1px;
  background: var(--zone-line);
  border: 1px solid var(--zone-line);
}

.research-lead-story,
.research-secondary-stories { background: var(--zone-bg); }

.research-lead-story {
  position: relative;
  display: grid;
  grid-template-rows: auto minmax(250px, 1fr) auto;
  min-height: 620px;
  padding: 36px 44px 42px;
  overflow: hidden;
  color: inherit;
  text-decoration: none;
}

.research-lead-story__visual {
  min-height: 0;
  margin: 28px -44px 34px;
  overflow: hidden;
  border-block: 1px solid var(--zone-line);
  background: var(--zone-bg);
}

.research-lead-story__visual img {
  width: 100%;
  height: 100%;
  min-height: 250px;
  object-fit: cover;
  object-position: 62% center;
}

.research-story-meta {
  display: flex;
  justify-content: space-between;
  gap: 24px;
  color: var(--zone-muted);
  font-size: 12px;
}

.research-story-meta span:last-child { color: var(--zone-orange); font-weight: 500; }

.research-lead-story__body {
  position: relative;
  z-index: 1;
  max-width: 670px;
}

.research-lead-story__body > p:first-child,
.research-secondary-stories > a > span {
  color: var(--zone-orange);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: .08em;
}

.research-lead-story h3 {
  margin: 18px 0 18px;
  font-size: clamp(34px, 3.2vw, 48px);
  font-weight: 600;
  line-height: 1.22;
}

.research-lead-story__body > p:last-child {
  margin: 0;
  color: var(--zone-muted);
  font-size: 14px;
}

.research-story-mark {
  position: absolute;
  right: 40px;
  bottom: 48px;
  color: var(--zone-orange);
  font: 400 28px/1 var(--zone-font-latin);
}

.research-secondary-stories { display: grid; grid-template-rows: repeat(2, 1fr); }

.research-secondary-stories > a {
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  min-height: 260px;
  padding: 34px 38px;
  color: inherit;
  text-decoration: none;
}

.research-secondary-stories > a + a { border-top: 1px solid var(--zone-line); }

.research-secondary-stories h3 {
  margin: 18px 0 16px;
  font-size: 24px;
  font-weight: 500;
  line-height: 1.35;
}

.research-secondary-stories > a:hover h3,
.research-secondary-stories > a:focus-visible h3 { color: var(--zone-orange); }

.research-secondary-stories p { margin: 0; color: var(--zone-muted); font-size: 13px; }

.research-publications { scroll-margin-top: 76px; }

.research-publications__title {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 50px;
  margin-bottom: 46px;
}

.research-publications__title .zone-kicker { margin-bottom: 24px; }
.research-publications__title > p { margin: 0 0 7px; color: var(--zone-muted); font-size: 13px; }

.research-controls {
  display: grid;
  grid-template-columns: minmax(280px, 390px) minmax(0, 1fr);
  gap: 24px;
  align-items: center;
  padding-bottom: 28px;
  border-bottom: 1px solid var(--zone-text);
}

.research-search { position: relative; display: block; }

.research-search input {
  width: 100%;
  height: 48px;
  padding: 0 48px 0 15px;
  border: 1px solid var(--zone-line);
  border-radius: var(--zone-radius-control);
  background: var(--zone-surface);
  color: var(--zone-text);
  font: 400 14px/1.2 var(--zone-font-zh);
}

.research-search input:focus {
  border-color: var(--zone-orange);
  outline: 3px solid rgba(255, 90, 31, .12);
}

.research-search > span:last-child {
  position: absolute;
  top: 50%;
  right: 16px;
  color: var(--zone-orange);
  font: 500 22px/1 var(--zone-font-latin);
  transform: translateY(-50%);
}

.research-filters {
  display: flex;
  justify-content: flex-end;
  gap: 6px;
  overflow-x: auto;
  scrollbar-width: none;
}

.research-filters::-webkit-scrollbar { display: none; }

.research-filters button {
  flex: 0 0 auto;
  min-height: 40px;
  padding: 8px 12px;
  border: 1px solid transparent;
  border-radius: var(--zone-radius-control);
  background: transparent;
  color: var(--zone-muted);
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
}

.research-filters button:hover,
.research-filters button:focus-visible { color: var(--zone-text); border-color: var(--zone-line); }

.research-filters button.is-active {
  border-color: var(--zone-orange);
  background: var(--zone-orange);
  color: #ffffff;
}

.research-index__header,
.research-index__row {
  display: grid;
  grid-template-columns: 110px 190px minmax(0, 1fr) 90px;
  gap: 28px;
  align-items: center;
}

.research-index__header {
  min-height: 58px;
  border-bottom: 1px solid var(--zone-line);
  color: var(--zone-muted);
  font-size: 11px;
  font-weight: 500;
}

.research-index__row {
  min-height: 106px;
  border-bottom: 1px solid var(--zone-line);
  color: var(--zone-muted);
  font-size: 13px;
  text-decoration: none;
}

.research-index__row:hover h3,
.research-index__row:focus-visible h3 { color: var(--zone-orange); }

.research-index__row[hidden] { display: none; }

.research-index__row h3 {
  margin: 0;
  color: var(--zone-text);
  font-size: 18px;
  font-weight: 500;
  line-height: 1.5;
}

.research-index__row > span:last-child {
  justify-self: start;
  padding: 4px 9px;
  border: 1px solid var(--zone-line);
  border-radius: 999px;
  color: var(--zone-muted);
  font-size: 11px;
  white-space: nowrap;
}

.research-empty {
  margin: 0;
  padding: 56px 0;
  border-bottom: 1px solid var(--zone-line);
  color: var(--zone-muted);
  text-align: center;
}

.research-next {
  padding: 84px 0;
  border-top: 1px solid var(--zone-line);
  background: var(--zone-surface);
}

.research-next__inner {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 64px;
}

.research-next .zone-kicker { margin-bottom: 22px; }

.research-text-link {
  flex: 0 0 auto;
  padding-bottom: 7px;
  border-bottom: 1px solid var(--zone-orange);
  color: var(--zone-text);
  font-size: 15px;
  font-weight: 500;
  text-decoration: none;
}

.research-text-link span:last-child { color: var(--zone-orange); }

@media (max-width: 1080px) {
  .research-fold { min-height: 0; max-height: none; grid-template-rows: auto auto; }
  .research-intro__grid { min-height: 420px; }
  .research-theme-list { grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 0 44px; padding-block: 56px; }
  .research-theme-list article { min-height: 190px; padding-block: 18px 30px; }
  .research-section-head { gap: 50px; }
  .research-controls { grid-template-columns: 1fr; }
  .research-filters { justify-content: flex-start; }
}

@media (max-width: 820px) {
  .research-intro__grid { grid-template-columns: 1fr; gap: 46px; min-height: 0; padding-block: 72px 68px; }
  .research-intro__statement { padding-left: 0; }
  .research-theme-list { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .research-featured, .research-publications { padding: 96px 0; }
  .research-section-head, .research-section-head--inline { grid-template-columns: 1fr; gap: 24px; }
  .research-section-head .zone-kicker { grid-column: auto; }
  .research-section-head--inline > div .zone-kicker { margin-bottom: 20px; }
  .research-feature-grid { grid-template-columns: 1fr; }
  .research-lead-story { min-height: 580px; }
  .research-secondary-stories { grid-template-columns: repeat(2, 1fr); grid-template-rows: none; }
  .research-secondary-stories > a + a { border-top: 0; border-left: 1px solid var(--zone-line); }
  .research-index__header { display: none; }
  .research-index__row { grid-template-columns: 110px minmax(0, 1fr) auto; gap: 16px 22px; padding: 24px 0; }
  .research-index__row h3 { grid-column: 1 / -1; grid-row: 1; padding-right: 70px; }
  .research-index__row > span:nth-child(1) { grid-column: 1; grid-row: 2; }
  .research-index__row > span:nth-child(2) { grid-column: 2; grid-row: 2; }
  .research-index__row > span:last-child { grid-column: 3; grid-row: 2; }
}

@media (max-width: 560px) {
  .research-intro__grid { gap: 36px; padding-block: 62px 56px; }
  .research-intro h1 { margin-top: 16px; font-size: 56px; }
  .research-intro__statement > p { font-size: 19px; line-height: 1.7; }
  .research-intro__statement nav { gap: 6px 15px; }
  .research-theme-list { grid-template-columns: 1fr; gap: 0; padding-block: 36px; }
  .research-theme-list article { min-height: 0; padding: 24px 0 26px; border-bottom: 1px solid var(--zone-line); }
  .research-theme-list article:last-child { border-bottom: 0; }
  .research-featured, .research-publications { padding: 76px 0; }
  .research-section-head { margin-bottom: 42px; }
  .research-section-head h2, .research-publications__title h2, .research-next h2 { font-size: 34px; line-height: 1.24; }
  .research-theme-list h3 { font-size: 21px; }
  .research-lead-story { min-height: 520px; padding: 28px 24px 34px; }
  .research-lead-story__visual { margin: 24px -24px 28px; }
  .research-story-mark { top: auto; right: 24px; bottom: 36px; }
  .research-secondary-stories { grid-template-columns: 1fr; }
  .research-secondary-stories > a { min-height: 220px; padding: 30px 24px; }
  .research-secondary-stories > a + a { border-top: 1px solid var(--zone-line); border-left: 0; }
  .research-publications__title { align-items: flex-start; flex-direction: column; gap: 16px; }
  .research-controls { gap: 18px; }
  .research-filters { margin-right: -18px; padding-right: 18px; }
  .research-index__row { grid-template-columns: 1fr auto; gap: 12px 16px; }
  .research-index__row h3 { padding-right: 0; }
  .research-index__row > span:nth-child(1) { display: none; }
  .research-index__row > span:nth-child(2) { grid-column: 1; }
  .research-index__row > span:last-child { grid-column: 2; }
  .research-next { padding: 68px 0; }
  .research-next__inner { align-items: flex-start; flex-direction: column; gap: 34px; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; transition: none !important; }
}