* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: Inter, -apple-system, BlinkMacSystemFont, "Segoe UI", Arial, sans-serif;
  color: #172033;
  background: #f7f9fc;
  line-height: 1.65;
}

a {
  color: #1d4ed8;
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

.site-header,
.sub-header {
  background: radial-gradient(circle at top left, #dbeafe, transparent 32%),
              linear-gradient(135deg, #0f172a, #1e293b 52%, #334155);
  color: white;
}

.nav {
  max-width: 1180px;
  margin: 0 auto;
  padding: 22px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav a {
  color: white;
  margin-left: 22px;
  font-weight: 600;
  opacity: 0.92;
}

.nav .brand {
  margin-left: 0;
  font-size: 1.1rem;
  letter-spacing: 0.02em;
}

.hero {
  max-width: 1180px;
  margin: 0 auto;
  padding: 70px 24px 90px;
  display: grid;
  grid-template-columns: 1.45fr 0.75fr;
  gap: 56px;
  align-items: center;
}

.eyebrow {
  color: #bfdbfe;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 0.85rem;
}

.hero h1,
.page-title h1 {
  font-size: clamp(2.4rem, 5vw, 4.8rem);
  line-height: 1.05;
  margin: 8px 0 18px;
}

.lead {
  font-size: 1.35rem;
  color: #e5e7eb;
}

.hero-text p {
  max-width: 760px;
  color: #e2e8f0;
}

.cta {
  margin-top: 34px;
}

.cta a {
  display: inline-block;
  margin: 0 10px 10px 0;
  padding: 12px 18px;
  border-radius: 999px;
  background: white;
  color: #0f172a;
  font-weight: 700;
}

.portrait-wrap {
  display: flex;
  justify-content: center;
}

.portrait {
  width: min(330px, 82vw);
  aspect-ratio: 1 / 1.15;
  object-fit: cover;
  object-position: center top;
  border-radius: 28px;
  border: 6px solid rgba(255,255,255,0.22);
  box-shadow: 0 30px 80px rgba(0,0,0,0.35);
}

main {
  max-width: 1180px;
  margin: 0 auto;
  padding: 36px 24px 70px;
}






.section {
  padding: 64px 0 0;
}

.section h2 {
  font-size: 2rem;
  margin: 0 0 22px;
  color: #0f172a;
}

.two-col {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 28px;
  align-items: start;
}

.grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}

.card {
  background: white;
  border: 1px solid #e5e7eb;
  padding: 26px;
  border-radius: 20px;
  box-shadow: 0 12px 34px rgba(15, 23, 42, 0.07);
}

.card h3 {
  margin-top: 0;
  color: #0f172a;
}

.pub-list {
  padding-left: 22px;
}

.pub-list li {
  background: white;
  border: 1px solid #e5e7eb;
  border-radius: 16px;
  padding: 18px 20px;
  margin-bottom: 14px;
}

.pub-list strong {
  color: #0f172a;
}

.pub-list sup,
.page-title sup {
  color: #b91c1c;
  font-weight: 800;
}

.note {
  color: #047857;
  font-weight: 700;
}

.text-link {
  font-weight: 800;
}

.clean-list {
  padding-left: 20px;
}

.clean-list li {
  margin-bottom: 12px;
}

.contact {
  background: white;
  border-radius: 24px;
  padding: 34px;
  border: 1px solid #e5e7eb;
}

.page-title {
  max-width: 1180px;
  margin: 0 auto;
  padding: 50px 24px 70px;
}

.page-title p {
  color: #e2e8f0;
  font-size: 1.1rem;
}

footer {
  text-align: center;
  color: #64748b;
  padding: 36px 24px;
}

@media (max-width: 850px) {
  .nav {
    display: block;
  }

  .nav div {
    margin-top: 12px;
  }

  .nav a {
    margin-left: 0;
    margin-right: 16px;
  }

  .hero,
  .two-col,
  .grid {
    grid-template-columns: 1fr;
  }

}


.news-grid {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 24px;
  align-items: start;
}

@media (max-width: 850px) {
  .news-grid {
    grid-template-columns: 1fr;
  }
}


.timeline {
  display: grid;
  gap: 18px;
}

.timeline-item {
  display: grid;
  grid-template-columns: 150px 1fr;
  gap: 22px;
  background: white;
  border: 1px solid #e5e7eb;
  border-radius: 20px;
  padding: 24px;
  box-shadow: 0 12px 34px rgba(15, 23, 42, 0.07);
}

.timeline-year {
  color: #1d4ed8;
  font-weight: 800;
  letter-spacing: 0.02em;
}

.timeline-content h3 {
  margin: 0 0 6px;
  color: #0f172a;
}

.timeline-content p {
  margin: 4px 0;
}

@media (max-width: 850px) {
  .timeline-item {
    grid-template-columns: 1fr;
  }
}


.section-intro {
  max-width: 760px;
  color: #64748b;
  margin-top: -8px;
  margin-bottom: 24px;
}

.paper-gallery {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}

.paper-card {
  min-height: 250px;
  padding: 24px;
  border-radius: 24px;
  color: white;
  background:
    linear-gradient(135deg, rgba(15, 23, 42, 0.92), rgba(30, 64, 175, 0.82)),
    radial-gradient(circle at top right, rgba(255, 255, 255, 0.22), transparent 34%);
  box-shadow: 0 18px 44px rgba(15, 23, 42, 0.16);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.paper-card.highlight {
  background:
    linear-gradient(135deg, rgba(88, 28, 135, 0.94), rgba(29, 78, 216, 0.84)),
    radial-gradient(circle at top right, rgba(255, 255, 255, 0.25), transparent 34%);
}

.paper-card h3 {
  margin: 18px 0 12px;
  font-size: 1.15rem;
  line-height: 1.35;
}

.paper-card p {
  color: #e5e7eb;
  margin-bottom: 0;
}

.paper-tag {
  display: inline-block;
  width: fit-content;
  padding: 7px 11px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.16);
  font-size: 0.82rem;
  font-weight: 800;
  letter-spacing: 0.02em;
}

@media (max-width: 1000px) {
  .paper-gallery {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 650px) {
  .paper-gallery {
    grid-template-columns: 1fr;
  }
}


.visual-paper-gallery {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 26px;
}

.visual-paper-card {
  background: white;
  border: 1px solid #e5e7eb;
  border-radius: 24px;
  overflow: hidden;
  box-shadow: 0 18px 44px rgba(15, 23, 42, 0.12);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.visual-paper-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 24px 60px rgba(15, 23, 42, 0.18);
}

.visual-thumb {
  height: 330px;
  background: #e5e7eb;
  overflow: hidden;
  border-bottom: 1px solid #e5e7eb;
}

.visual-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: top center;
  display: block;
}

.visual-paper-body {
  padding: 22px 24px 26px;
}

.visual-paper-body h3 {
  color: #0f172a;
  margin: 14px 0 10px;
  font-size: 1.15rem;
  line-height: 1.35;
}

.visual-paper-body p {
  color: #64748b;
  margin: 0;
}

.visual-paper-body .paper-tag {
  background: #eff6ff;
  color: #1d4ed8;
  border: 1px solid #bfdbfe;
}

@media (max-width: 900px) {
  .visual-paper-gallery {
    grid-template-columns: 1fr;
  }

  .visual-thumb {
    height: 300px;
  }
}

@media (max-width: 600px) {
  .visual-thumb {
    height: 240px;
  }
}


.visual-paper-card {
  text-decoration: none;
  color: inherit;
}

.visual-paper-card:hover {
  text-decoration: none;
}

.visual-thumb {
  position: relative;
}

.paper-hover {
  position: absolute;
  inset: 0;
  background: rgba(15, 23, 42, 0.82);
  color: white;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 10px;
  text-align: center;
  padding: 24px;
  opacity: 0;
  transition: opacity 0.22s ease;
}

.visual-paper-card:hover .paper-hover {
  opacity: 1;
}

.paper-hover span {
  font-weight: 800;
  color: #bfdbfe;
}

.paper-hover strong {
  font-size: 1.15rem;
}

.paper-hover em {
  font-style: normal;
  font-size: 0.9rem;
  color: #e5e7eb;
}


.page-card {
  display: block;
  color: inherit;
  text-decoration: none;
}

.page-card:hover {
  text-decoration: none;
  transform: translateY(-3px);
}