:root {
  --bg: #ffffff;
  --text: #101214;
  --muted: #656b72;
  --line: #e2e5e9;
  --line-strong: #b9bec5;
  --blue: #0057b8;
  --orange: #c9562a;
  --max: 1280px;
  --font: "Helvetica Neue", Helvetica, Arial, sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; background: var(--bg); }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
a { color: inherit; }

.site-header {
  background: #fff;
  border-top: 4px solid #151515;
  border-bottom: 1px solid var(--line);
}
.header-inner {
  width: min(var(--max), calc(100% - 80px));
  min-height: 86px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  gap: 40px;
}
.brand {
  display: flex;
  align-items: baseline;
  gap: 18px;
  min-width: 0;
  text-decoration: none;
}
.brand strong {
  font-size: 18px;
  font-weight: 650;
  letter-spacing: -0.02em;
  white-space: nowrap;
}
.eds-initial {
  display: inline-block;
  color: var(--text);
  font-size: 1.34em;
  line-height: .72;
  font-weight: 820;
  letter-spacing: -0.055em;
  vertical-align: -0.035em;
}
.brand > span {
  color: var(--muted);
  font-size: 13px;
}
.page-nav {
  display: flex;
  align-items: center;
  gap: 24px;
}
.page-nav a {
  position: relative;
  color: #4b4f54;
  font-size: 15px;
  text-decoration: none;
}
.page-nav a.active {
  color: var(--text);
  font-weight: 650;
}
.page-nav a.active::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -11px;
  height: 2px;
  background: var(--text);
}

.page {
  width: min(var(--max), calc(100% - 80px));
  margin: 0 auto;
  padding: 76px 0 124px;
}

.research-intro {
  display: grid;
  grid-template-columns: 170px minmax(0, 1fr);
  column-gap: 70px;
  row-gap: 36px;
  padding-bottom: 70px;
  border-bottom: 1px solid var(--text);
}
.research-intro h1 {
  grid-column: 2;
  margin: 0;
  font-size: clamp(64px, 8vw, 112px);
  line-height: .88;
  font-weight: 420;
  letter-spacing: -0.065em;
}
.intro-copy {
  grid-column: 2;
  max-width: 980px;
}
.area-line {
  margin: 0 0 28px;
  font-size: clamp(20px, 2.1vw, 29px);
  line-height: 1.35;
  letter-spacing: -0.03em;
}
.area-line span {
  display: inline-block;
  padding: 0 .34em;
  color: var(--orange);
}
.research-goal {
  max-width: 900px;
  margin: 0;
  color: #444a50;
  font-size: 16px;
  line-height: 1.7;
}

.publications-head {
  display: grid;
  grid-template-columns: 170px minmax(0, 1fr);
  column-gap: 70px;
  padding: 62px 0 38px;
}
.pub-head-main {
  grid-column: 2;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  justify-content: flex-start;
  gap: 11px;
}
.pub-head-main h2 {
  margin: 0;
  font-size: clamp(34px, 4vw, 52px);
  line-height: 1;
  font-weight: 460;
  letter-spacing: -0.045em;
}
.legend {
  margin: 0;
  color: var(--muted);
  font-size: 12px;
  white-space: nowrap;
}
.legend-j,
.legend-c { font-weight: 800; }
.legend-c { color: var(--blue); }
.legend-j { color: var(--text); }

.year-section {
  display: grid;
  grid-template-columns: 170px minmax(0, 1fr);
  column-gap: 70px;
  padding: 0 0 46px;
}
.year-heading {
  position: sticky;
  top: 24px;
  align-self: start;
  padding-top: 20px;
  color: var(--text);
  font-size: 24px;
  line-height: 1;
  font-weight: 500;
  letter-spacing: -0.035em;
  font-variant-numeric: tabular-nums;
}
.year-publications { border-top: 1px solid var(--text); }
.publication-row {
  display: grid;
  grid-template-columns: 58px minmax(0, 1fr) minmax(210px, 290px);
  column-gap: 28px;
  align-items: start;
  padding: 20px 0 22px;
  border-bottom: 1px solid var(--line);
}
.pub-code {
  padding-top: 2px;
  color: var(--text);
  font-size: 14px;
  font-weight: 800;
  letter-spacing: -0.01em;
  font-variant-numeric: tabular-nums;
}
.pub-code.conference { color: var(--blue); }
.pub-main h3 {
  max-width: 800px;
  margin: 0 0 7px;
  font-size: clamp(17px, 1.45vw, 20px);
  line-height: 1.36;
  font-weight: 520;
  letter-spacing: -0.022em;
}
.authors {
  margin: 0;
  color: #666c73;
  font-size: 15px;
  line-height: 1.45;
}
.pub-meta {
  margin: 7px 0 0;
  color: #7d838a;
  font-size: 14.5px;
  line-height: 1.5;
  font-weight: 400;
  letter-spacing: 0;
}
.venue {
  padding-top: 1px;
  color: var(--text);
  font-size: 14px;
  line-height: 1.3;
  text-align: left;
}
.venue-name {
  display: block;
  font-size: 16px;
  font-weight: 760;
  letter-spacing: -0.018em;
}

.site-footer { border-top: 1px solid var(--text); }
.footer-inner {
  width: min(var(--max), calc(100% - 80px));
  margin: 0 auto;
  padding: 26px 0 48px;
  display: flex;
  justify-content: space-between;
  gap: 24px;
  color: var(--muted);
  font-size: 12px;
}

@media (max-width: 1060px) {
  .publication-row {
    grid-template-columns: 52px minmax(0, 1fr) minmax(190px, 245px);
    column-gap: 21px;
  }
}

@media (min-width: 901px) and (max-width: 1020px) {
  body .brand { gap: 18px; }
  body .brand > span {
    top: 4px;
    padding-left: 17px;
  }
}

@media (max-width: 900px) {
  .header-inner,
  .page,
  .footer-inner { width: min(100% - 48px, var(--max)); }
  .research-intro,
  .publications-head,
  .year-section {
    grid-template-columns: 120px minmax(0, 1fr);
    column-gap: 36px;
  }
  .publication-row {
    grid-template-columns: 50px minmax(0, 1fr);
    row-gap: 8px;
  }
  .venue {
    grid-column: 2;
    margin-top: 2px;
  }
  .venue-name { font-size: 14px; }
}

@media (max-width: 700px) {
  .header-inner {
    grid-template-columns: 1fr;
    gap: 12px;
    padding: 16px 0;
  }
  .page-nav { gap: 18px; }
  .page-nav a.active::after { bottom: -6px; }
  .page { padding-top: 52px; }
  .research-intro,
  .publications-head,
  .year-section {
    grid-template-columns: 1fr;
    row-gap: 22px;
  }
  .research-intro h1,
  .intro-copy,
  .pub-head-main { grid-column: 1; }
  .year-heading {
    position: static;
    padding-top: 0;
    margin-top: 18px;
    font-size: 28px;
  }
  .venue { display: none; }
}

@media (max-width: 520px) {
  .header-inner,
  .page,
  .footer-inner { width: min(100% - 32px, var(--max)); }
  .research-intro h1 { font-size: 64px; }
  .area-line { font-size: 20px; }
  .publication-row {
    grid-template-columns: 44px minmax(0, 1fr);
    column-gap: 12px;
  }
  .pub-main h3 { font-size: 17px; }
  .pub-meta { font-size: 14.5px; }
  .footer-inner { flex-direction: column; }
}