* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: 'Poppins', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen', 'Ubuntu', 'Cantarell', 'Fira Sans', 'Droid Sans', 'Helvetica Neue', sans-serif;
  background-color: #fff;
  color: #333;
  line-height: 1.6;
  font-weight: 400;
  font-size: 14px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  max-width: 900px;
  margin: 0 auto;
  padding: 0 20px;
}

.banner {
  background: transparent;
  padding: 10px 0;
  text-align: center;
  border-top: 1px solid #e1e5e9;
  border-bottom: 1px solid #e1e5e9;
  margin-bottom: 40px;
}

.navbar .nav-link {
  margin: 0 45px;
  text-decoration: none;
  color: #333;
  font-weight: 500;
  font-size: 1.05rem;
  letter-spacing: 0.02em;
  transition: color 0.2s ease;
}

.navbar .nav-link:hover {
  color: #f4a261;
}

.intro-container {
  display: flex;
  align-items: flex-start;
  padding: 0;
  max-width: 900px;
  margin: 40px auto 20px auto;
  gap: 40px;
}

.profile-photo img {
  width: 180px;
  height: 180px;
  border-radius: 50%;
  object-fit: cover;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.intro-text h1 {
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: 10px;
  color: #1a1a1a;
  letter-spacing: -0.03em;
}

.intro-text h1:last-of-type {
  font-family: 'KaiTi', '楷体', 'STKaiti', '华文楷体', 'SimKai', serif;
  margin-bottom: 8px;
}

.social-icons {
  margin-top: 12px;
}

.social-icons a {
  margin: 0 15px 0 0;
  font-size: 1.3rem;
  color: #666;
  text-decoration: none;
  transition: color 0.2s ease;
}

.social-icons a:hover {
  color: #f4a261;
}

.school-info {
  margin-left: auto;
  text-align: right;
  flex-shrink: 0;
}

.school-info h1 {
  font-size: 1.5rem;
  font-weight: 600;
  margin-bottom: 8px;
  color: #666;
}

.school-info p {
  font-size: 1.05rem;
  color: #666;
  margin-bottom: 4px;
  line-height: 1.4;
}

.section {
  padding: 0;
  max-width: 900px;
  margin: 0 auto 50px auto;
}

.section h2 {
  margin-bottom: 25px;
  font-weight: 600;
  font-size: 1.4rem;
  letter-spacing: -0.02em;
  color: #1a1a1a;
  border-bottom: 2px solid #e1e5e9;
  padding-bottom: 10px;
}

.section h3 {
  margin-bottom: 12px;
  font-size: 1.1rem;
  color: #1a1a1a;
}

.section p {
  line-height: 1.7;
  margin-bottom: 20px;
  font-weight: 400;
  font-size: 1rem;
  color: #333;
}

.section details {
  margin-bottom: 20px;
  border: 1px solid #e1e5e9;
  border-radius: 8px;
  padding: 0;
}

.section summary {
  font-weight: 600;
  font-size: 1rem;
  cursor: pointer;
  padding: 10px 20px;
  background-color: #f8f9fa;
  border-radius: 8px;
  color: #1a1a1a;
  transition: background-color 0.2s ease;
}

.section summary:hover {
  background-color: #e9ecef;
}

.section details[open] summary {
  border-bottom: 1px solid #e1e5e9;
  border-radius: 8px 8px 0 0;
}

.section ol,
.section ul {
  font-size: 1rem;
  line-height: 1.7;
  padding: 18px 20px 18px 42px;
}

.section li {
  margin-bottom: 10px;
  color: #333;
}

.section a,
.footer a {
  color: #f4a261;
  text-decoration: none;
  transition: color 0.2s ease;
}

.section a:hover,
.footer a:hover {
  color: #e76f51;
  text-decoration: underline;
}

.pub-container {
  display: flex;
  flex-direction: column;
  gap: 22px;
}

.pub-item {
  display: flex;
  align-items: flex-start;
  padding: 20px;
  border: 1px solid #e1e5e9;
  border-radius: 8px;
  background-color: #fff;
  transition: box-shadow 0.2s ease;
}

.pub-item:hover {
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.pub-item.text-only {
  min-height: 0;
}

.pub-info {
  flex: 1;
}

.pub-title {
  font-weight: 600;
  font-size: 1.1rem;
  color: #1a1a1a;
  line-height: 1.4;
  margin-bottom: 6px;
}

.pub-authors {
  font-weight: 400;
  font-size: 0.92rem;
  color: #666;
  line-height: 1.5;
  margin-bottom: 4px;
}

.pub-venue {
  font-weight: 500;
  font-size: 0.85rem;
  color: #f4a261;
  line-height: 1.4;
}

.simple-list {
  padding: 0 !important;
  list-style: none;
}

.simple-list li {
  border-bottom: 1px solid #edf0f2;
  padding: 14px 0;
}

.footer {
  border-top: 1px solid #e1e5e9;
  color: #777;
  font-size: 0.85rem;
  margin: 20px auto 40px auto;
  padding-top: 18px;
  text-align: center;
}

@media (max-width: 768px) {
  body {
    padding: 0 15px;
  }

  .intro-container {
    flex-direction: column;
    text-align: center;
    gap: 20px;
    margin: 30px auto 20px auto;
  }

  .school-info {
    margin-left: 0;
    text-align: center;
    width: 100%;
  }

  .profile-photo img {
    width: 150px;
    height: 150px;
  }

  .navbar .nav-link {
    display: inline-block;
    margin: 6px 12px;
    font-size: 0.95rem;
  }

  .section {
    margin-bottom: 36px;
  }
}