html {
  box-sizing: border-box;
}

*,
*:before,
*:after {
  box-sizing: inherit;
}

body {
  margin: 0;
  background: linear-gradient(180deg, #f6f8fb 0%, #eef2f7 100%);
  color: #1f2937;
  font-family: "Georgia", "Times New Roman", serif;
}

a {
  color: #1769aa;
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

code {
  background: #eef2ff;
  border-radius: 6px;
  padding: 2px 6px;
  font-family: "SFMono-Regular", "Consolas", monospace;
  font-size: 0.92em;
}

.layout {
  width: 100%;
  max-width: 860px;
  margin: 0 auto;
  border: 0;
  border-spacing: 0;
  border-collapse: separate;
  padding: 32px 20px 48px;
}

.intro-table {
  width: 100%;
  border: 0;
  border-spacing: 0;
  border-collapse: separate;
  background: rgba(255, 255, 255, 0.84);
  border: 1px solid #d9e2ec;
  border-radius: 24px;
  box-shadow: 0 18px 50px rgba(15, 23, 42, 0.08);
}

.intro-text {
  width: 63%;
  padding: 28px;
  vertical-align: middle;
}

.intro-photo {
  width: 37%;
  max-width: 37%;
  padding: 28px 28px 28px 0;
  vertical-align: middle;
}

.name {
  margin: 0 0 24px;
  text-align: center;
  font-size: 2.4rem;
  line-height: 1.1;
  font-weight: 700;
  letter-spacing: 0.02em;
}

.links {
  margin: 24px 0 10px;
  text-align: center;
  font-size: 1rem;
}

.help-text {
  margin: 8px 0 0;
  color: #5b6778;
  font-size: 0.92rem;
  line-height: 1.6;
}

.centered {
  text-align: center;
}

.placeholder-block {
  margin: 0;
  padding: 18px 20px;
  border: 1px dashed #aab7c4;
  border-radius: 18px;
  background: #fbfcfe;
  color: #425466;
  line-height: 1.8;
}

.small-gap {
  margin-top: 12px;
}

.photo-placeholder {
  display: flex;
  justify-content: center;
  align-items: center;
}

.profile-photo {
  width: 100%;
  max-width: 200px;
  height: auto;
  display: block;
}

.research {
  margin-top: 28px;
  background: rgba(255, 255, 255, 0.84);
  border: 1px solid #d9e2ec;
  border-radius: 24px;
  box-shadow: 0 18px 50px rgba(15, 23, 42, 0.06);
  overflow: hidden;
}

.section-header {
  padding: 24px 28px 10px;
}

.section-header h2 {
  margin: 0 0 8px;
  font-size: 1.7rem;
}

.research-row {
  display: flex;
  gap: 20px;
  padding: 20px 28px 28px;
  border-top: 1px solid #e6ecf2;
}

.research-image {
  width: 32%;
  min-width: 180px;
}

.image-placeholder {
  width: 100%;
  aspect-ratio: 16 / 10;
  border: 2px dashed #aab7c4;
  border-radius: 18px;
  background: linear-gradient(135deg, #f9fbfd 0%, #eef3f8 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #5f6f82;
  text-align: center;
  padding: 16px;
}

.research-desc {
  width: 68%;
}

.papertitle {
  color: #1769aa;
  font-weight: 700;
  font-size: 1.1rem;
}

.meta {
  margin: 8px 0 0;
  line-height: 1.7;
}

.footer {
  padding: 18px 8px 0;
  color: #607084;
  text-align: right;
  font-size: 0.92rem;
}

@media (max-width: 760px) {
  .layout {
    padding: 18px 14px 32px;
  }

  .intro-table,
  .research {
    border-radius: 18px;
  }

  .intro-table tbody,
  .intro-table tr,
  .intro-table td {
    display: block;
    width: 100%;
    max-width: 100%;
  }

  .intro-text {
    padding: 24px 20px 12px;
  }

  .intro-photo {
    padding: 8px 20px 24px;
  }

  .name {
    font-size: 2rem;
  }

  .profile-photo {
    max-width: 220px;
  }

  .research-row {
    display: block;
    padding: 18px 20px 24px;
  }

  .research-image,
  .research-desc {
    width: 100%;
  }

  .research-image {
    min-width: 0;
    margin-bottom: 16px;
  }

  .section-header {
    padding: 20px 20px 8px;
  }
}