#keyword-search {
  max-width: 900px;
  margin: 20px auto;
  padding: 10px 24px;
  border: 1px solid #ddd;
  border-radius: 10px;
  background: #fafafa;
  font-family: sans-serif;
}

#keyword-search h2 {
  margin: 0 0 10px;
  padding: 10px;
  font-size: 20px;
  font-weight: 500;
}

#keyword-search input {
  width: 100%;
  margin: 4px 0 4px 0;
  padding: 6px 12px;
  font-size: 14px;
  border: 1px solid #ccc;
  border-radius: 6px;
}

#keyword-search input::placeholder {
  color: #888;
}

#keyword-search button#search-btn {
  width: 100%;
  margin: 20px 0 4px 0;
  padding: 6px 12px;
  font-size: 14px;
  background: #0066cc;
  color: #fff;
  border: 1px solid #0066cc;
  border-radius: 6px;
  cursor: pointer;
  transition: 0.15s;
}

#keyword-search button#search-btn:hover {
  background: #0052a3;
}










/* レスポンシブ */
@media (max-width: 600px) {
  #keyword-search {
    padding: 16px;
    margin: 10px;
  }

  #keyword-search button,
  #keyword-search select {
    width: 100%;
    margin: 4px 0;
  }

  .exact-match {
    justify-content: space-between;
  }

  #keyword-search button:not(.exact-match),
  #keyword-search select {
    width: 100%;
  }
}