:root {
  --paper-text: #353535;
  --paper-blue: #4d7fd1;
  --paper-gray: #f1f3f6;
  --paper-line: #dce0e5;
}

.paper-page {
  margin: 0;
  color: var(--paper-text);
  background: #fff;
  font-family: Inter, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 17px;
  line-height: 1.55;
}

.page-container {
  width: min(1152px, calc(100% - 48px));
  margin-right: auto;
  margin-left: auto;
}

.paper-header {
  position: relative;
  padding: 118px 0 56px;
  text-align: center;
}

.paper-header::before {
  content: "";
  position: absolute;
  top: 72px;
  right: 0;
  left: 0;
  height: 1px;
  background: var(--paper-line);
}

.home-link {
  position: absolute;
  top: 24px;
  left: 0;
  color: #282a27;
  font-size: 14px;
  font-weight: 650;
}

.home-link:hover {
  color: var(--paper-blue);
  text-decoration: none;
}

.paper-header h1 {
  max-width: 1080px;
  margin: 0 auto;
  color: #282a27;
  font-size: clamp(32px, 3.8vw, 48px);
  font-weight: 650;
  letter-spacing: -0.04em;
  line-height: 1.24;
  text-wrap: balance;
}

.authors {
  margin: 28px auto 0;
  color: #282a27;
  font-size: 20px;
  font-weight: 400;
  line-height: 1.8;
  text-wrap: balance;
}

.authors a {
  color: inherit;
  text-decoration: underline;
  text-decoration-color: #b8bab4;
  text-underline-offset: 5px;
}

.affiliation {
  margin: 18px 0 0;
  color: #686b65;
  font-size: 16px;
  line-height: 1.6;
}

.venue {
  display: inline-block;
  margin: 22px 0 0;
  padding: 6px 19px;
  color: #fff;
  border-radius: 999px;
  background: #FF9500;
  font-size: 16px;
  font-weight: 650;
}

.equal-note {
  margin: 10px 0 0;
  color: #858b92;
  font-size: 12px;
}

.paper-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 14px;
  margin-top: 24px;
}

.paper-links a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 26px;
  min-height: 52px;
  padding: 11px 24px;
  border: 1px solid #282a27;
  border-radius: 999px;
  color: #fff;
  background: #282a27;
  font-size: 15px;
  font-weight: 650;
}

.paper-links a + a {
  color: #282a27;
  background: #fff;
}

.paper-links a:hover {
  color: #282a27;
  background: #FF9500;
  text-decoration: none;
}

.paper-links span {
  font-size: 20px;
  font-weight: 400;
}

.abstract-overview {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: stretch;
  padding: 16px 0 80px;
}

.abstract-copy h2 {
  margin: 0 0 28px;
  color: #282a27;
  font-size: 36px;
  font-weight: 730;
  letter-spacing: -0.035em;
  line-height: 1.2;
}

.abstract-copy p {
  margin: 0 0 18px;
  line-height: 1.8;
}

.abstract-copy p:last-child {
  margin-bottom: 0;
}

.abstract-image {
  margin: 0;
  overflow: hidden;
  border-radius: 16px;
}

.abstract-image img {
  display: block;
  width: 100%;
  height: 100%;
  min-height: 480px;
  object-fit: cover;
  object-position: left center;
}

.content-section {
  padding: 64px 0 78px;
}

.content-section h2,
.band h2,
.bibtex-section h2 {
  margin: 0 0 38px;
  color: #353535;
  font-size: 36px;
  font-weight: 730;
  letter-spacing: -0.025em;
  line-height: 1.2;
  text-align: center;
}

.content-section > p {
  max-width: 1020px;
  margin: 0 auto 18px;
}

.band {
  padding: 72px 0 82px;
}

.band--gray {
  background: var(--paper-gray);
}

.feature-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: center;
  margin-top: 56px;
}

.feature-row + .feature-row {
  margin-top: 82px;
}

.feature-copy {
  padding: 8px 32px;
}

.feature-copy h3 {
  margin: 0 0 22px;
  color: #353535;
  font-size: 26px;
  font-weight: 720;
  letter-spacing: -0.02em;
  line-height: 1.25;
}

.feature-copy > p {
  margin: 0 0 16px;
}

.feature-row figure {
  margin: 0;
  overflow: hidden;
  border-radius: 7px;
  background: #fff;
  box-shadow: 0 2px 12px rgba(24, 34, 45, 0.08);
}

.feature-row img {
  display: block;
  width: 100%;
}

.state-pair {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-top: 28px;
}

.state-pair > div {
  padding: 16px;
  border: 1px solid #d8dde3;
  border-radius: 6px;
  background: rgba(255, 255, 255, 0.68);
}

.state-pair strong {
  display: block;
  margin: 9px 0 5px;
  font-size: 0.85rem;
}

.state-pair p {
  margin: 0;
  color: #697078;
  font-size: 0.73rem;
  line-height: 1.5;
}

.state-mark {
  display: block;
  width: 18px;
  height: 18px;
}

.state-mark--gas {
  border: 2px solid var(--paper-blue);
  border-radius: 50%;
}

.state-mark--solid {
  border-radius: 4px;
  background: var(--paper-blue);
}

.content-section--study {
  padding-top: 76px;
}

.study-figure {
  margin: 48px 0 34px;
  padding: 16px;
  border: 1px solid var(--paper-line);
  border-radius: 6px;
}

.study-figure img {
  display: block;
  width: 100%;
}

.result-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border-top: 1px solid var(--paper-line);
  border-bottom: 1px solid var(--paper-line);
}

.result-grid article {
  padding: 28px;
}

.result-grid article + article {
  border-left: 1px solid var(--paper-line);
}

.result-grid strong {
  color: var(--paper-blue);
  font-size: 12px;
  letter-spacing: 0.08em;
}

.result-grid h3 {
  margin: 28px 0 8px;
  font-size: 20px;
}

.result-grid p {
  margin: 0;
  color: #666d74;
  font-size: 14px;
}

.bibtex-section {
  padding: 72px 0;
  background: var(--paper-gray);
}

.video-embed {
  position: relative;
  width: min(960px, 100%);
  margin: 0 auto;
  padding-top: min(56.25%, 540px);
  overflow: hidden;
  border-radius: 8px;
  background: #111;
  box-shadow: 0 2px 12px rgba(24, 34, 45, 0.12);
}

.video-embed iframe {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  border: 0;
}

.bibtex-section pre {
  margin: 0;
  padding: 24px 28px;
  overflow-x: auto;
  border: 1px solid #d8dde3;
  border-radius: 6px;
  background: #fff;
  font-size: 13px;
  line-height: 1.55;
  white-space: pre-wrap;
}

.paper-footer {
  padding: 28px 0;
  color: #777f87;
  font-size: 13px;
  text-align: center;
}

.paper-footer .page-container {
  display: flex;
  justify-content: space-between;
}

.paper-footer p {
  margin: 0;
}

.paper-footer a {
  color: var(--paper-blue);
}

@media (max-width: 800px) {
  .paper-header {
    padding-top: 112px;
  }

  .paper-header h1 {
    font-size: 36px;
  }

  .authors {
    font-size: 18px;
  }

  .abstract-overview {
    grid-template-columns: 1fr;
    gap: 28px;
    padding-bottom: 54px;
  }

  .abstract-image img {
    min-height: 0;
    height: auto;
  }

  .abstract-image {
    border-radius: 14px;
  }

  .feature-row,
  .feature-row--reverse {
    grid-template-columns: 1fr;
  }

  .feature-row--reverse figure {
    order: 2;
  }

  .feature-copy {
    padding: 0;
  }
}

@media (max-width: 600px) {
  .paper-page {
    font-size: 15px;
  }

  .page-container {
    width: min(100% - 28px, 1152px);
  }

  .paper-header h1 {
    margin-bottom: 0;
    font-size: 32px;
    line-height: 1.24;
  }

  .authors {
    margin-top: 24px;
    margin-bottom: 0;
    font-size: 17px;
  }

  .affiliation {
    font-size: 14px;
  }

  .venue {
    font-size: 15px;
  }

  .content-section,
  .band,
  .bibtex-section {
    padding-top: 54px;
    padding-bottom: 58px;
  }

  .content-section h2,
  .band h2,
  .bibtex-section h2 {
    margin-bottom: 28px;
    font-size: 29px;
  }

  .feature-row,
  .feature-row + .feature-row {
    gap: 24px;
    margin-top: 38px;
  }

  .feature-row + .feature-row {
    margin-top: 58px;
  }

  .feature-copy h3 {
    font-size: 22px;
  }

  .state-pair,
  .result-grid {
    grid-template-columns: 1fr;
  }

  .result-grid article + article {
    border-top: 1px solid var(--paper-line);
    border-left: 0;
  }

  .study-figure {
    overflow-x: auto;
  }

  .study-figure img {
    min-width: 720px;
  }

  .paper-footer .page-container {
    display: block;
  }

  .paper-footer a {
    display: inline-block;
    margin-top: 5px;
  }
}

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

.concept-layout {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 56px;
  align-items: center;
}
.concept-figure { margin: 0; }
.concept-figure img { display: block; width: 100%; }
.concept-layout p { margin: 0 0 20px; }
.study-table-wrap { overflow-x: auto; margin: 28px 0 40px; }
.study-table { width: 100%; border-collapse: collapse; font-size: 14px; }
.study-table caption { text-align: left; font-weight: 650; margin-bottom: 14px; }
.study-table th, .study-table td { padding: 14px 12px; border-bottom: 1px solid var(--paper-line); text-align: center; white-space: nowrap; }
.study-table thead { background: var(--paper-gray); }
.study-table th:first-child { text-align: left; }
.study-table td:nth-child(3), .study-table td:nth-child(5), .study-table td:nth-child(7) { background: #fff5e8; }
.citation-actions { display: flex; align-items: center; gap: 16px; margin-bottom: 16px; }
#copy-bibtex { border: 0; border-radius: 999px; padding: 12px 22px; background: #282a27; color: #fff; font: inherit; font-size: 14px; font-weight: 650; cursor: pointer; }
#copy-bibtex:hover { background: #FF9500; }
#copy-bibtex:focus-visible { outline: 3px solid #FF9500; outline-offset: 3px; }
#copy-status { font-size: 14px; }
@media (max-width: 800px) {
  .concept-layout { grid-template-columns: 1fr; gap: 28px; }
  .concept-figure { width: min(480px, 100%); margin: 0 auto; }
}

.study-conditions { width: min(900px, 100%); margin: 36px auto 48px; }
.study-conditions img { display: block; width: 100%; border-radius: 8px; }
.study-conditions figcaption { margin-top: 14px; color: #697078; font-size: 14px; line-height: 1.65; }

.study-intro {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
}
.study-intro .abstract-copy h2 { text-align: left; margin-bottom: 28px; }
.study-intro .study-conditions { width: 100%; margin: 0; }
@media (max-width: 800px) {
  .study-intro { grid-template-columns: 1fr; gap: 28px; }
}

.authors sup, .affiliation sup {
  font-size: 0.65em;
  line-height: 0;
  vertical-align: super;
}

.authors {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  column-gap: 26px;
  row-gap: 6px;
  max-width: 1100px;
}
.author { white-space: nowrap; }
.author sup { margin-left: 3px; }
.affiliation {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  column-gap: 32px;
  row-gap: 6px;
}
.affiliation > span { white-space: nowrap; }

.feature-row video {
  display: block;
  width: 100%;
  height: auto;
}