.paper {
  margin-bottom: 40px;
}

.paper-title {
  color: #2c74ca;
  font-weight: bold;
}

.author-name {
  color: #2c74ca;
}

.btn {
  display: flex;
  margin-top: 10px;
}

.btn .type {
  margin-right: 30px;
  width: 80px;
  text-align: center;
  border-radius: 2px;
  font-weight: bold;
  background-color: #e8e8e8;
}

.btn .state {
  display: flex;
  align-items: center;
  margin-right: 140px;
}

.btn .state img {
  width: 16px;
  height: 16px;
}

.btn .download {
  display: flex;
  align-items: center;
  margin-right: 50px;
}

.btn .download img {
  width: 25px;
  height: 25px;
}

.btn .download span {
  text-decoration: underline;
}