.head_logo {
  height: 138px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.head_logo .import {
  height: 34px;
  width: 300px;
  border: 1px solid #868686;
  border-radius: 6px;
  overflow: hidden;
}

.head_logo .import input {
  width: 100%;
  height: 100%;
  padding-left: 10px;
}

/* .head_logo .import::after {
  content: "";
  display: block;
  position: absolute;
  right: 10px;
  top: 50%;
  transform: translateY(-50%);
  background: url(../image/num_01.png);
  width: 20px;
  height: 20px;
  z-index: 15;
} */

.head_logo .search {
  display: flex;
  align-items: center;
}

.head_logo .text {
  display: flex;
  margin-left: 40px;
  color: #007070;
}

.head_logo .text .text-img {
  margin-left: 10px;
}

.menus {
  height: 48px;
  background-color: #007070;
}

.menus .meuns-ul {
  display: flex;
  align-items: center;
  height: 48px;
}

.menus .meuns-ul li {
  padding: 0 30px;
  border-right: 1px solid #cce2e2;
  cursor: pointer;
}

.menus .meuns-ul li a {
  color: #fff;
}

.menus .meuns-ul .on {
  background-color: #197e7e;
  border-right: 1px solid #197e7e;
  height: 100%;
  display: flex;
  align-items: center;
}

.foo_cc {
  height: 230px;
  background-color: #007070;
  padding-top: 40px;
}

.foo_cc .foo_ul {
  display: flex;
  color: #fff;
  justify-content: space-between;
}

.foo_cc .foo_ul li .text {
  font-size: 16px;
  margin-bottom: 18px;
}

.foo_cc .foo_ul li .lianxi {
  display: flex;
}

.foo_cc .foo_ul li .lianxi>div {
  margin-right: 20px;
}

.foo_cc .last_cc {
  width: 191px;
}

.foo_cc .chemistry_bottom {
  display: flex;
  justify-content: space-between;
  color: #fff;
  margin-top: 50px;
}


.chemistry_lf {
  padding: 0 20px;
  margin-right: 10px;
}

.chemistry_lf ul li {
  width: 267px;
  border-bottom: 1px solid #e2e2e2;
}

.chemistry_lf ul li .chemistry_a {
  display: flex;
  width: 100%;
  justify-content: space-between;
  align-items: center;
  color: #007070;
  font-weight: 700;
  height: 41px;
  cursor: pointer;
  font-size: 13px;
  border-bottom: 1px solid #e2e2e2;
}

.chemistry_lf ul li .chemistry_a .on {
  color: #19bdc9;
}

.chemistry_lf .chemistry_a .chemistry_title.on .chemistry_title.open,
.chemistry_title:focus,
.chemistry_title:hover {
  color: #19bdc9;
}

.chemistry {
  display: flex;
  padding-top: 28px;
  /* padding-bottom: 69px; */
  padding-bottom: 53px;
}

.children {
  display: none;
}

.children .children_li .children_yuansu {
  display: flex;
  justify-content: space-between;
  height: 44px;
  align-items: center;
  padding-left: 13px;
  cursor: pointer;
}

.children .children_li .children_yuansu .on {
  color: #19bdc9;
}



.three {
  margin-top: 10px;
  display: none;
  line-height: 2.5em;
}

.three_li {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-left: 26px;
  cursor: pointer;
  height: auto;
}


@media screen and (max-width: 768px) {
  .head_logo {
    height: auto;
  }
}