.doc-search-box {
  width: 650px;
  max-width: 650px;
}
.doc-search-input {
  vertical-align: top;
  height: 45px;
  line-height: 25px;
  font-size: 16px;
  border: none;
  padding: 10px 15px;
  box-shadow: none;
  display: inline-block;
  border-radius: 0;
  -webkit-appearance: none;
  width: calc(100% - 35px);
}
.doc-search-input:focus {
  outline: 0;
}
.doc-search-btn {
  height: 45px;
  border: none;
  vertical-align: top;
  position: relative;
  line-height: 35px;
  width: 35px;
  text-indent: -10000px;
  border-radius: 0;
  right: 0;
  top: 0;
  overflow: hidden;
  outline: 0;
  box-sizing: border-box;
  cursor: pointer;
}
.doc-search-btn:hover {
  background-color: #fff;
}
.doc-search-btn::after {
  position: absolute;
  content: "";
  display: inline-block;
  width: 16px;
  height: 16px;
  top: 50%;
  left: 50%;
  margin: -8px 0 0 -8px;
  background-size: contain;
  background-repeat: no-repeat;
  background-position: center;
  background-image: url(/img/search.svg);
}
.doc-search-input:focus + .doc-search-btn::after {
  background-image: url(/img/search_hover.svg);
}