body {
  margin: 0;
  padding: 0;
  font-family: "Segoe UI", sans-serif;
  background-color: #f9f9fb;
  color: #333;
}

.page {
  max-width: 1000px;
  margin: auto;
  padding: 40px 20px;
}

.page-title {
  font-size: 2.5em;
  text-align: center;
  margin-bottom: 10px;
}

.page-subtitle {
  text-align: center;
  font-size: 1.1em;
  color: #666;
  margin-bottom: 40px;
}

.papers-container {
  display: flex;
  flex-direction: column;
  gap: 30px;
}

.paper-card {
  background: white;
  padding: 25px;
  border-radius: 12px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.06);
  transition: transform 0.2s ease;
}

.paper-card:hover {
  transform: translateY(-5px);
}

.paper-title {
  font-size: 1.5em;
  margin-bottom: 5px;
}

.paper-authors {
  color: #888;
  font-size: 0.9em;
  margin-bottom: 15px;
}

.paper-summary {
  font-size: 1em;
  line-height: 1.5em;
  margin-bottom: 20px;
}

.paper-links a {
  margin-right: 20px;
  text-decoration: none;
  color: #0077cc;
  font-weight: 500;
}

.paper-links a:hover {
  text-decoration: underline;
}

.tags {
  margin-top: 10px;
}

.tag {
  display: inline-block;
  padding: 4px 10px;
  margin-right: 8px;
  border-radius: 20px;
  font-size: 0.75em;
  color: white;
}

.tag.nlp {
  background-color: #8e44ad;
}
.tag.cv {
  background-color: #2980b9;
}
.tag.dl {
  background-color: #27ae60;
}
.tag.rl {
  background-color: #e67e22;
}

@media screen and (max-width: 600px) {
  .page {
    padding: 20px 10px;
  }

  .page-title {
    font-size: 1.8em;
    margin-bottom: 8px;
  }

  .page-subtitle {
    font-size: 1em;
    margin-bottom: 25px;
  }

  .paper-card {
    padding: 18px;
  }

  .paper-title {
    font-size: 1.2em;
  }

  .paper-authors {
    font-size: 0.85em;
  }

  .paper-summary {
    font-size: 0.95em;
    line-height: 1.4em;
  }

  .paper-links a {
    margin-right: 12px;
    font-size: 0.9em;
  }

  .tag {
    font-size: 0.7em;
    padding: 3px 8px;
    margin-right: 6px;
  }
}